Commercial Solutions

Commercial Solutions
The Leader in Condensing Technology
The Leader in Condensing Technology
Russia and the
Commonwealth of
Independent States
Europe
Russia
The Netherlands
UK
Ireland
Global
vision
Denmark
KD Navien was the first to adopt
the EN (European) standard for all
its boilers. This assures world‑class
quality in every country where our
products are sold. Today KD Navien
retains the largest market share
for condensing gas water heaters
in North America; is ranked top in
technology patents; and as a leading
boilermaker, is the largest exporter
of boilers from Korea. KD Navien
proudly exports that leadership
in dependability, design, green
technology, social responsibility and
customer service to over 30 countries.
Portugal
Germany
Russia
Armenia
Ukraine
Georgia
Belarus
Kazakhstan
Azerbaijan
Uzbekistan
Europe
Poland
Spain
Greece
Turkey
Asia
Asia &
Oceania
North
America
China
Japan
New Zealand
A world
leader in
energy
efficient
technology
Australia
Oceania
North America
& South America
USA
Canada
Mexico
Brazil
KD Navien was an early leader in
developing condensing technology for
boilers and water heaters. Condensing
technology maximizes energy by using
unused heat emitted from flue gasses.
As a result, energy consumption and
green house gases are significantly
reduced. Emission temperatures are
much lower too.
Peru
South
America
Navigator/Energy/Environment
Three words from which the company name was created
Mission
To provide customers with the ultimate comfortable living environment through energy efficient products by using
innovative technology to create a healthier environment for our future generations.
2
3
Navien NPE Series
leads the industry with
these innovations
Advanced
technology for a
cleaner world
KD Navien’s high efficiency and eco‑friendly technology
has reduced energy consumption by 20% and cut down the
emissions of green house gases. Our condensing tankless
gas water heaters achieved the industry’s highest energy
factor, 0.99 EF, setting the standard for the rest of the world.
1
⁄2" gas pipe capabilities
up to 24', reduces
installation time for
retrofit applications.
Dual stainless steel
heat exchangers
resist corrosion better
than copper.
2" PVC venting up to
60'. No need to cut new
chases, saving time
and money.
Table of
Contents
NPE condensing
tankless water heaters
have an efficiency
of 0.99 EF.
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . 2–7
UP TO
RESTAURANTS . . . . . . . . . . . . . . . . . . . . . 8–11
0.99 EF
SCHOOLS . . . . . . . . . . . . . . . . . . . . . . . . 12–15
HOTELS . . . . . . . . . . . . . . . . . . . . . . . . . . 16–19
MEDICAL . . . . . . . . . . . . . . . . . . . . . . . . . 20–23
INDUSTRIAL . . . . . . . . . . . . . . . . . . . . . . 24–27
LEISURE . . . . . . . . . . . . . . . . . . . . . . . . . . 28–31
MULTI-FAMILY . . . . . . . . . . . . . . . . . . . . . 32–35
OTHERS . . . . . . . . . . . . . . . . . . . . . . . . . . 36–39
Cascade more
than 4 units without
a separate controller.
Navien captured first
place award for innovation
at 2013 AHR Expo.
Navien is a proud Energy
Star Partner. The NPE‑S
0.99 EF is at the top of
the Energy Star list.
NPE Series condensing
gas water heaters win the
prestigious IF Award for
Product Design in 2013.
The Leader in Condensing Technology
4
5
The following case histories describe how
Navien tankless water heaters solved issues
of reliability, durability, operating efficiency,
energy and water conservation, installation
challenges and customer support.
Navien products are installed daily across
the United States, Canada and the world,
in both commercial and residential locations,
in new construction and retrofit applications.
This book, by way of introduction to our many
solutions and satisfied customers, is a very
small sampling of our capabilities. We invite
you to visit us on an ongoing basis at
Navien.com.
The Leader in Condensing Technology
6
7
RESTAURANTS
Biaggi’s chain restaurant “Service”
honoree, replaces tank system
with four cascading Navien NPE’s
in overnight installation
Biaggi’s Ristorante Italiano
Deer Park, IL
Situation
Biaggi’s Ristorante in Deer Park, Illinois, found their inefficient 200‑gallon
tank could barely keep up with dishwashing demand and they would
replace tanks every two or three years.
Four Navien NPE-240 units use
cascading technology to assure
a steady and dependable flow of
hot water .
Solution
Gregg Bickus of Bickus Plumbing convinced the owners to replace their
old system with four cascaded Navien NPE‑240 units. The Bickus crew
started about a half hour after the restaurant closed and had continuous
hot water up and running by 10:30 the next morning.
Benefits
Instant hot water supply: Unlike other tankless systems, the Navien
NPE features a buffer tank and recirculating pump to provide an
uninterrupted flow of hot water. This prevents a condition known as
“cold water sandwich” which sends cold water before the heater
reaches full temperature.
Greg commented, “We don’t have to add any pumps on any of the
piping. So this saves money and adds value.”
Water conservation: Mark Brickey of Metropolitan Industries added,
“The pump saves thousands of gallons of water a year. In some areas
like the city of Chicago, their code says that you need water saving
devices such as this pump. I’ve seen savings in excess of 12,000 gallons
of water a year.”
“Our crew started about a half hour after
the restaurant closed and we had it up
and running by 10:30 the next morning .”
Gregg Bickus, Bickus Plumbing, Inc .
No “cold water
sandwiches” served
at this restaurant
“With the new NPE
model we have had
zero problems,”
In addition
to the featured restaurant case
Gregg Bickus (right)
study
to the left, Navien products are efficiently
remarked . Mark
saving
energy
and supplying endless hot
Brickey
of Navien
distributor
water
to many other dining facilities . A selected
Metropolitan
group,
currently
Industries
adds, profiting from Navien’s
“With over is listed below:
technology,
95% efficiency
we use less fuel
and what we
use, we burn
more efficiently .”
Reliability: The four NPE units at Biaggi’s are linked together through
cascading technology. Mark explained, “When a unit gets up to
80% capacity, then another one will come on to help meet the flow
& demand required. They’ll both ride up to about 80% and then the
third one will come on. It keeps the flow more even so that there aren’t
any spikes or drops.”
Durability: Stainless dual steel heat exchangers, a Navien exclusive,
last longer than other tankless heaters with aluminum or copper heat
exchangers. Stainless resists corrosion from hard water and Navien NPE
units don’t have to be cleaned as often other tankless heaters.
Faster, less expensive installation: One of the reasons Gregg’s
crew could replace the old system so quickly is the ability to use 2" PVC
venting. Gregg said, “PVC is cheaper, available everywhere and all the
plumbers use PVC fittings.” Since the NPE uses 2" venting, PVC can be
run in existing vent chases, saving many hours of installation time.
Burton’s Grill
Westford, MA
• Applebee’s, Multiple Locations, USA
Communication
Commun
nica
ation
• Archie Moore’s Restaurant, Multiple Locations, USA
Cab
ble
Cable
• Burger King, Multiple Locations,G TX
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G H
• Chelo’s Waterfront Restaurant, Multiple Locations, USA
• Chick-fil-A, Multiple Locations, USA
• Chipotle Mexican Grill, Multiple Locations, USA
• El Fenix, Multiple Locations, USA
• Famous Dave’s
BBQ,
Indianapolis, IN
Domestic
Hot Water
• Five Guys BurgersDomestic
and Fries, Multiple Locations, USA
Return
• Fleming’s, Recirculation
Brookfield,
WI
• Fuddruckers, Multiple Locations, USA
• Glory Days Grill, Herndon, VA
• International House of Pancakes (IHOP), Buffalo, NY
• Jamba Juice, Houston, TX
• Joe’s American Bar & Grill, Boston, MA
• Joe’s Crab Shack, Multiple Locations, USA
• Kings Bowling, Multiple Locations, USA
• Krispy Kreme, Louisville, KY
• Little Caesars Pizza, McPherson, KS
• McDonalds
Restaurant, Multiple Locations, USA
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at Multiple
http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
• Mellow Mushroom,
Locations, USA
• Mission BBQ, Multiple Locations, USA
• Moe’s Southwest Grill, Birmingham, AL
• Moxie’s Restaurant, Multiple Locations, Canada
• Ostra Restaurant, Boston, MA
• Outback Steakhouse, Multiple Locations, USA
• Panera Bread, Multiple Locations, USA
• Papa John’s Pizza, Norwalk, CT
• Pizza Hut, Multiple Locations, USA
• Qdoba, West Allis, WI
• Red Robin, Multiple Locations, USA
• RockFish Seafood Grill, Multiple Locations, USA
• Sonic, Madison Heights, MI
• Starbucks, Fort Wayne, IN
• Studio Movie Grill, Duluth, GA
• Taco Bell, Multiple Locations, USA
• Taco Bueno, Multiple Locations, USA
• Taco Villa, Multiple Locations, USA
• Texas Roadhouse, Multiple Locations, USA
• TGI Fridays, Pottstown, PA
• The Keg, Newmarket, ON, Canada
• Wendy’s, Multiple Locations, USA
Four NPE
Tankless External
Recirculation Mode
To learn and see more, visit
www .Navien .com/Commercial
8
9
11
RESTAURANTS
Biaggi’s chain restaurant “Service”
honoree, replaces tank system
with four cascading Navien NPE’s
in overnight installation
Biaggi’s Ristorante Italiano
Deer Park, IL
Situation
Biaggi’s Ristorante in Deer Park, Illinois, found their inefficient 200‑gallon
tank could barely keep up with dishwashing demand and they would
replace tanks every two or three years.
Four Navien NPE-240 units use
cascading technology to assure
a steady and dependable flow of
hot water .
“With the new NPE
model we have had
zero problems,”
Gregg Bickus (right)
remarked . Mark
Brickey of Navien
distributor
Metropolitan
Industries adds,
“With over
95% efficiency
we use less fuel
and what we
use, we burn
more efficiently .”
Biaggi’s Ristorante
Italiano operates
23 locations in
12 states nationwide .
Solution
Gregg Bickus of Bickus Plumbing convinced the owners to replace their
old system with four cascaded Navien NPE‑240 units. The Bickus crew
started about a half hour after the restaurant closed and had continuous
hot water up and running by 10:30 the next morning.
Commun
Communication
nica
ation
Cab
ble
Cable
Benefits
G
Instant hot water supply: Unlike other tankless systems, the Navien
NPE features a buffer tank and recirculating pump to provide an
uninterrupted flow of hot water. This prevents a condition known as
“cold water sandwich” which sends cold water before the heater
reaches full temperature.
H
C
Communication
nication
ble
Cable
G
H
C
Commun
Communication
nica
ation
Cab
ble
Cable
G
H
C
G
C
H
Condensate
Gas
Domestic
Cold Water
Domestic Hot Water
Domestic
Recirculation Return
Greg commented, “We don’t have to add any pumps on any of the
piping. So this saves money and adds value.”
Water conservation: Mark Brickey of Metropolitan Industries added,
“The pump saves thousands of gallons of water a year. In some areas
like the city of Chicago, their code says that you need water saving
devices such as this pump. I’ve seen savings in excess of 12,000 gallons
of water a year.”
“Our crew started about a half hour after
the restaurant closed and we had it up
and running by 10:30 the next morning .”
Gregg Bickus, Bickus Plumbing, Inc .
No “cold water
sandwiches” served
at this restaurant
Reliability: The four NPE units at Biaggi’s are linked together through
cascading technology. Mark explained, “When a unit gets up to
80% capacity, then another one will come on to help meet the flow
& demand required. They’ll both ride up to about 80% and then the
third one will come on. It keeps the flow more even so that there aren’t
any spikes or drops.”
Four NPE
Tankless External
Recirculation Mode
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Pressure
Relief
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
Durability: Stainless dual steel heat exchangers, a Navien exclusive,
last longer than other tankless heaters with aluminum or copper heat
exchangers. Stainless resists corrosion from hard water and Navien NPE
units don’t have to be cleaned as often other tankless heaters.
9
Expansion
Tank
Mixing
Valve
T
Aquastat
Biaggi’s offers an
extensive menu
of classic Italian
dishes served in a
family-friendly, casual
environment .
Faster, less expensive installation: One of the reasons Gregg’s
crew could replace the old system so quickly is the ability to use 2" PVC
venting. Gregg said, “PVC is cheaper, available everywhere and all the
plumbers use PVC fittings.” Since the NPE uses 2" venting, PVC can be
run in existing vent chases, saving many hours of installation time.
8
Circulator
Check Valve
Storage
Vessel
10
SCHOOLS
Prestigious Independent School
League member saves $20,000
a year in gas, water and electricity
costs by switching to a Navien
NPE‑240 system
Brooks School
North Andover, MA
Situation
Brooks School replaced an inefficient
boiler and tank system with three
cascaded Navien NPE-240 water heaters .
Brian Palm, Director of Sustainability and a teacher of environmental
science, investigated replacement options for the school. Bob Avila of
Avila Plumbing and Heating, suggested using three Navien NPE‑240’s to
address the issues of operating efficiency, durability and maintenance.
The new system was installed over the 2012 winter break.
Benefits
Navien provides school a
lesson in economics
school term but is unused
for weeks at a time .
The Navien on-demand
tankless system was the
cost effective solution .
The dining hall at Brooks School, a co‑educational college preparatory
boarding and day school, in North Andover, Massachusetts, used two
inefficient 400,000 BTU boilers to heat a 300‑gallon storage tank. With a
$1.2 million dollar annual utility bill, the school was looking to reduce the
cost of gas, water and electricity by 5 to 10% per year. The old system
cost about $2,000 a year for maintenance and repairs — not only for the
boilers and the tank — but all also for the corroding metal venting. Due
to corrosive water, they had to replace water tanks far too often.
Solution
Bob Avila of Avila Plumbing installed
the system . He says “Maintenance is
next to nil .”
In addition to the featured college preparatory
school case study to the left, Navien products
are efficiently saving energy and supplying
endless hot water to many other educational
The dining hall at Brooks
facilities .
A selected
group, currently profiting
School has
high demand
forNavien’s
hot water during
the
from
technology,
is listed below:
Significant energy cost reduction: After a thorough cost/benefit
analysis, Brian stated, “Conservatively, we expect to save about $20,000
in water, natural gas and electricity.”
Operating efficiency: Since demand varies greatly depending on
the school calendar, Brian appreciates the efficiency of an on‑demand
system. “We had been heating a couple hundred gallons of hot water
at 140 degrees when the school was quiet for three to four weeks,”
he explained.
Reliability: To assure a reliable supply of hot water, the school wanted
redundancy without a prohibitive cost. Bob said, “One unit is basically
handling the hot water right now and they are step fired. They give each
other redundancy for maximum load.”
Lower maintenance costs: The Navien system uses a Comfort‑Flow
system with a buffer tank and self‑contained pump. Bob said, “Now
we don’t need as many pumps circulating water. The maintenance
is next to nil.”
Durability: Bob liked the stainless steel heat exchanger. “It doesn’t
corrode like other units so it will last a lot longer.” With the new Navien
system, there are no water tanks to replace every few years. In addition,
the PVC venting not only costs less, it’s easier to install and unlike the
metal venting, will not corrode.
Dominican University
St . River Forest, IL
• Abbottsford Elementary School, Abbottsford, BC
Communication
Communic
• Berry College, Rome, GA
Cable
• Brenau University, Gainesville, GA
G
H
• British Columbia Institute of Technology, Vancouver,
BC C
• Brooks School, North Andover, MA
• Burnaby North Secondary School, Burnaby, BC
• Cape Fear Acadamy, Wilmington, NC
• Central Michigan University, Mount Pleasant, MI
Domestic
Hot Water
• Clovis Unified School
District,
Clovis, CA
Recirculation
Return Dodge City, KS
• Dodge CityDomestic
Community
College,
• Dominican University, River Forest, IL
• Forest Park High School, Ferdinand, IN
• Fresno Unified School District, Fresno, CA
• Hazel Park Schools, Hazel Park, MI
• Langley High School, Langley, BC
• Long Island University, Brookville, NY
• Millsaps College, Jackson, MS
• Northern Alberta Institute of Technology, Edmonton, AB
• Oakland University, Rochester, MI
• Park Hill High School, Kansas City, MO
• Petal HighThis
School,
MS purposes only. All CAD drawings and specifications
drawing is Petal,
for demonstration
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
• Phillips Academy Andover, Andover, MA
• Prairie High School, Cedar Rapids, IA
• Prairie PK-12, New Raymer, CO
• Princeton University - Medical Arts Pavillion, Plainsboro, NJ
• R .D . Wilson Elementary, Waymart, PA
• Resurrection Christian School, Loveland, CO
• Seneca College, King City, ON
• Sheridan College, Etobicoke, ON
• Simon Fraser Elementary, Vancouver, BC
• Smithville ISD, Smithville, TX
• Stanford-Staff Housing, Stanford, CA
• UNC Wilmington, Wilmington, NC
• University of Oregon-Chi Omega Sorority House, Eugene, OR
• Vine Middle School, Knoxville, TN
• Wastenaw Community College, Ann Arbor, MI
• Williams College, Williamstown, MA
Three NPE
Tankless External
Recirculation Mode
To learn and see more, visit
www .Navien .com/Commercial
12
13
15
SCHOOLS
Prestigious Independent School
League member saves $20,000
a year in gas, water and electricity
costs by switching to a Navien
NPE‑240 system
Brooks School
North Andover, MA
Situation
Brooks School replaced an inefficient
boiler and tank system with three
cascaded Navien NPE-240 water heaters .
Brian Palm, Director
of Sustainability and
an environmental
science teacher said,
“Our tank system
was more than
10 years old and
from an efficiency
perspective, we
had some potential
for savings .” He
calculates the new
Navien system
will save the school
$20,000 a year .
The dining hall at Brooks
School has high demand
for hot water during the
school term but is unused
for weeks at a time .
The Navien on-demand
tankless system was the
cost effective solution .
The dining hall at Brooks School, a co‑educational college preparatory
boarding and day school, in North Andover, Massachusetts, used two
inefficient 400,000 BTU boilers to heat a 300‑gallon storage tank. With a
$1.2 million dollar annual utility bill, the school was looking to reduce the
cost of gas, water and electricity by 5 to 10% per year. The old system
cost about $2,000 a year for maintenance and repairs — not only for the
boilers and the tank — but all also for the corroding metal venting. Due
to corrosive water, they had to replace water tanks far too often.
Communic
Communication
Cable
Solution
Brian Palm, Director of Sustainability and a teacher of environmental
science, investigated replacement options for the school. Bob Avila of
Avila Plumbing and Heating, suggested using three Navien NPE‑240’s to
address the issues of operating efficiency, durability and maintenance.
The new system was installed over the 2012 winter break.
G
H
C
Commu
Communication
nicatio
on
Ca
ble
Cable
G
H
C
G
C
H
Condensate
Gas
Domestic
Cold Water
Domestic Hot Water
Domestic Recirculation Return
Benefits
Bob Avila of Avila Plumbing installed
the system . He says “Maintenance is
next to nil .”
Navien provides school a
lesson in economics
Significant energy cost reduction: After a thorough cost/benefit
analysis, Brian stated, “Conservatively, we expect to save about $20,000
in water, natural gas and electricity.”
Operating efficiency: Since demand varies greatly depending on
the school calendar, Brian appreciates the efficiency of an on‑demand
system. “We had been heating a couple hundred gallons of hot water
at 140 degrees when the school was quiet for three to four weeks,”
he explained.
Three NPE
Tankless External
Recirculation Mode
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
Reliability: To assure a reliable supply of hot water, the school wanted
redundancy without a prohibitive cost. Bob said, “One unit is basically
handling the hot water right now and they are step fired. They give each
other redundancy for maximum load.”
Lower maintenance costs: The Navien system uses a Comfort‑Flow
system with a buffer tank and self‑contained pump. Bob said, “Now
we don’t need as many pumps circulating water. The maintenance
is next to nil.”
PVC venting on the
Navien system is
easier to install and
won’t corrode like
metal venting .
Durability: Bob liked the stainless steel heat exchanger. “It doesn’t
corrode like other units so it will last a lot longer.” With the new Navien
system, there are no water tanks to replace every few years. In addition,
the PVC venting not only costs less, it’s easier to install and unlike the
metal venting, will not corrode.
12
Circulator
Check Valve
Storage
Vessel
13
14
HOTELS
The Courtyard by Marriott in
Evansville, Indiana, uses seven
Navien NPE‑240’s to provide a
steady supply of hot water for
high and low demand.
The Courtyard
by Marriott
Evansville, IN
In addition to the featured hotel case study
to the left, Navien products are efficiently
saving energy and supplying endless hot
water to many other hotels . A selected group,
currently profiting from Navien’s technology,
is listed below:
This Courtyard
by Marriott is a
state-of-the-art hotel
recently built in
Evansville, Indiana .
Situation
Scott Reed, design engineer for Evansville
Winnelson said, “It’s great when you
can show off your products in a nicely
designed installation . We really appreciate
the craftsmanship from Altstadt Plumbing .”
The Courtyard by Marriott has to supply hot water on demand to
119 rooms as well as a laundry facility and a small restaurant. Demand
varies greatly depending on the number of guests and restaurant traffic,
so the hotel needed a system to provide the flexibility of handling peak
loads and off times.
Domestic Hot Water to Fixtures
Hampton Inn and Suites
Oldsmar, FL
Solution
Design engineer Scott Reed from Evansville Winnelson, the Navien
distributor, designed a hot water supply system with seven Navien
NPE‑240 water heaters and three unheated tanks to circulate water to
and from the Navien heaters. Joe Cox from Altstadt Plumbing worked
with Scott to plan and install the system. The entire installation took less
than two weeks.
Insulated
Storage
Tank
Insulated
Storage
Tank
G
T
(B)
(A)
The Inn On 5th
Naples, FL
Efficiency for high and low demand: Joe explained how they
configured the water heating system. “You’ve got to consider how many
rooms there are based on the fixtures and the amount of occupancy you
can have at one time and then basing that on gallons per minute, get the
size of the equipment needed to handle that load. But you don’t want
equipment running constantly when it’s not needed. That’s where Navien
becomes a benefit because in times of low use they can run minimally or
not run at all. Then in highest demand periods, all seven Naviens kick in.”
Scott added, “We used unheated storage tanks to supply plenty of water
to the Navien heaters. At any one point in time there’s 119 gallons times
three which is close to 360 gallons that can be drawn out for heating.”
Easier venting installation: “On this installation we used schedule 40
PVC solid core for intake and CPVC schedule 80 for exhaust,” Joe said.
Hot water for a full
house or single guest
Durability: Joe likes the long‑term reliability of the NPE unit. “With the two
stainless steel heat exchangers you don’t have to worry about scaling and
corrosion so much. And basically the warranties are great.”
Optional DHW Recirculation
Multiple NPE with
Multiple Storage Tanks
to meet Flow/ Temp Rise
Requirements
The Sandman
BC,
Canada
This drawing is for demonstration purposesSurrey,
only. All
CAD
drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
• Best Western, Multiple Locations, USA
• Country Inn Suites, Youngstown, OH
• Culver Cove Resort and Conference Center, Culver, IN
• Dancing Bear Motel, Colebrook, NH
• Econo Lodge, New Ashford, MA
• Hampton Inn and Suites, Multiple Locations, USA
• Hawthorn Suites by Wyndham, Cedar Rapids, IA
• Holiday Inn, Multiple Locations, USA & Canada
• La Quinta Hotel, Multiple Locations, USA
The
diningNV
• MGM Grand - Private Executive Houses, Las
Vegas,
• Motel Grande Prairie, Grande Prairie, AB room is served
by a kitchen
• Red Roof Inn, Round Rock, TX
that requires
• The Courtyard by Marriott, Evansville, IN
high volumes
• The Inn On 5th, Naples, FL
of hot water
• The Lodge at Woodloch, Hawley, PA
provided by the
• The Sandman Signature Hotel, Surrey, BC Navien system .
To learn and see more, visit
www .Navien .com/Commercial
16
C
T
Benefits
Joe Cox, Altstadt Plumbing, has been
working with Navien tankless systems
for over five years .
H
17
19
HOTELS
The Courtyard by Marriott in
Evansville, Indiana, uses seven
Navien NPE‑240’s to provide a
steady supply of hot water for
high and low demand.
The Courtyard
by Marriott
Evansville, IN
This Courtyard
by Marriott is a
state-of-the-art hotel
recently built in
Evansville, Indiana .
Situation
Scott Reed, design engineer for Evansville
Winnelson said, “It’s great when you
can show off your products in a nicely
designed installation . We really appreciate
the craftsmanship from Altstadt Plumbing .”
The Courtyard by Marriott has to supply hot water on demand to
119 rooms as well as a laundry facility and a small restaurant. Demand
varies greatly depending on the number of guests and restaurant traffic,
so the hotel needed a system to provide the flexibility of handling peak
loads and off times.
Domestic Hot Water to Fixtures
4-14 Tanks
Solution
Design engineer Scott Reed from Evansville Winnelson, the Navien
distributor, designed a hot water supply system with seven Navien
NPE‑240 water heaters and three unheated tanks to circulate water to
and from the Navien heaters. Joe Cox from Altstadt Plumbing worked
with Scott to plan and install the system. The entire installation took less
than two weeks.
Insulated
Storage
Tank
Insulated
Storage
Tank
Communication
ation
Cable
G
T
H
G
C
Joe Cox, Altstadt Plumbing, has been
working with Navien tankless systems
for over five years .
H
C
Communication
Communicatio
on
Cable
Cable
G
H
C
G
H
C
Condensate
Conde
T
Gas
(B)
(B)
(B)
(B)
(A)
Domestic Cold
Water
(A) Tankless Circulator (Bronze or S.S)
Selected Shall be 16 GPM Max (4 Per
Tankless) @ 23' Total Head (10 PSI) + pipe,
valves, fittings & tank. (B) Install Circuit Setters
to Maintain Flow into Units @ 4 GPM Maximum
Benefits
Efficiency for high and low demand: Joe explained how they
configured the water heating system. “You’ve got to consider how many
rooms there are based on the fixtures and the amount of occupancy you
can have at one time and then basing that on gallons per minute, get the
size of the equipment needed to handle that load. But you don’t want
equipment running constantly when it’s not needed. That’s where Navien
becomes a benefit because in times of low use they can run minimally or
not run at all. Then in highest demand periods, all seven Naviens kick in.”
Communication
Commu
unication
Ca
able
Cable
Optional DHW Recirculation
Multiple NPE with
Multiple Storage Tanks
to meet Flow/ Temp Rise
Requirements
Circulator
Check Valve
Storage
Vessel
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Scott added, “We used unheated storage tanks to supply plenty of water
to the Navien heaters. At any one point in time there’s 119 gallons times
three which is close to 360 gallons that can be drawn out for heating.”
Easier venting installation: “On this installation we used schedule 40
PVC solid core for intake and CPVC schedule 80 for exhaust,” Joe said.
Hot water for a full
house or single guest
Durability: Joe likes the long‑term reliability of the NPE unit. “With the two
stainless steel heat exchangers you don’t have to worry about scaling and
corrosion so much. And basically the warranties are great.”
16
17
High demand
applications such
as the laundry room
may require all seven
NPE-240’s to run while
supplying hot water to
a guest shower may
only take one .
The dining
room is served
by a kitchen
that requires
high volumes
of hot water
provided by the
Navien system .
18
MEDICAL
Ivy League medical facility
uses Navien and achieves
LEED certification
Princeton University
Medical Arts Pavilion
Plainsboro, NJ
In addition to the featured hospital case study
to the left, Navien products are efficiently
saving energy and supplying endless hot water
to many other medical facilities . A selected
group, currently profiting from Navien’s
technology, is listed below:
Situation
The Princeton University Medical Arts Pavilion is a new six‑story medical
office building adjacent to the Princeton University Hospital. The office
building also includes a surgical center and outpatient unit where a
continuous hot water supply is critical.
Nine cascading Navien NP-240 NG
units provide hot water on demand to
six floors of office space, surgery center
and outpatient clinic .
Modern medical centers
are using the latest
technology for all systems,
including heating water .
Solution
Triangle Plumbing, working with manufacturer’s rep Maloney & Curcio,
installed nine cascaded Navien NP‑240 NG units in three banks of three in
the roof‑top mechanical room. Each is individually vented with PVC pipe.
Coral Oaks
Assisted 5 Star Living
Palm Harbor, FL
Slave 2-14
Benefits
Communication Cable
Commun
Higher efficiency: Terry Moore of Maloney & Curcio recommended
the Navien units because of their higher efficiency. Terry explained,
“Navien is the highest rated in the industry. You’re looking at an energy
factor of 0.95. So that means only 5% of your heat is going out the flue.
Compared to a unit at 0.80 EF you’re looking at 15% cost savings right
off the bat.” Navien units were one of many factors used in the building’s
LEED certification achievement.
Venting with 3-inch PVC reduces
installation time and material costs .
Since the units were installed on the
top floor, each could be individually
vented through the side wall .
Navien NP units provide
reliable and efficient
source of hot water for
Medical Center
Reduced space requirements: Terry commented, “We had a very
limited space. It’s a very tight building. So, getting this much hot water
produced without a storage tank was huge for them, and being able to
do it in such a small footprint was very important.”
Easier, lower cost installation: Each NP‑240 NG unit is vented with 3"
PVC pipe. Terry summarized the benefits, “PVC is readily available and
contractors are very comfortable working with it. It’s a low cost material
and costs less to install since it’s so easy to work with.”
More venting options: In this situation the heating units were installed
on the top floor, so a vent per unit was the easiest solution. But Terry
said for other installations it’s also easy to combine PVC vents to reduce
the number of penetrations for aesthetic purposes. “There is no right
or wrong choice on that. It’s more of a preference. It’s nice having the
option to do whatever you want.”
Durability and maintenance: Terry mentioned the advantages of
having two stainless steel heat exchangers in the Navien units. “Stainless
doesn’t scale up like copper and because of that, we don’t have to do a
recommended purge. The stainless heat exchangers last longer too.”
Hot
DHW
Supply
21
Gas
Sunny Hills Nursing Home
Joliet, IL
• Broadmoor Medical Lodge, Rockwall, TX
• Church Street Manor Apartments, Gainesville, GA
• Coral Oaks Assisted 5 Star Living, Palm Harbor, FL
• Cornerstone Hospital, Round Rock, TX
• DePuy Synthes-Orthopaedics, Spinal Care,
Sports Medicine, Raynham, MA
• Emeritus Senior Living, Harrisonburg, VA
• Good Sheperd Home - Raker Center, Allentown, PA
• Grace Health Care, Clarksville, TN
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be
found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
• Holiday Inn,
Surrey,
BC
• John Knox Village, Lee’s Summit, MO
• Kemper House Nursing Home, Olmstead Falls, OH
• La Spa Foret at The French Manor Inn and Spa,
South Sterling, PA
• Laurel House, Stamford, CT
• Meadow Ridge, Redding, CT
• Mirasol Senior Community, Loveland, CO
• Nazareth Villages, Nazareth, KY
• North Pointe Health & Rehab, Meridian, MS
• Sunny Hills Nursing Home, Joliet, IL
• The Heights of Tomball - Assisted Living, Tomball, TX
• Willow Glenn Assisted Living, New Castle, IN The nine Navien
units fit nicely
in a very tight
space where it
would be difficult
to fit large
storage tanks .
NP Multiple Units
To learn and see more, visit
www .Navien .com/Commercial
20
Cold
23
MEDICAL
Ivy League medical facility
uses Navien and achieves
LEED certification
Princeton University
Medical Arts Pavilion
Plainsboro, NJ
Situation
The Princeton University Medical Arts Pavilion is a new six‑story medical
office building adjacent to the Princeton University Hospital. The office
building also includes a surgical center and outpatient unit where a
continuous hot water supply is critical.
Nine cascading Navien NP-240 NG
units provide hot water on demand to
six floors of office space, surgery center
and outpatient clinic .
Modern medical centers
are using the latest
technology for all systems,
including heating water .
Solution
Triangle Plumbing, working with manufacturer’s rep Maloney & Curcio,
installed nine cascaded Navien NP‑240 NG units in three banks of three in
the roof‑top mechanical room. Each is individually vented with PVC pipe.
Slave 1
Slave 2-14
Benefits
Communication Cable
Commun
Higher efficiency: Terry Moore of Maloney & Curcio recommended
the Navien units because of their higher efficiency. Terry explained,
“Navien is the highest rated in the industry. You’re looking at an energy
factor of 0.95. So that means only 5% of your heat is going out the flue.
Compared to a unit at 0.80 EF you’re looking at 15% cost savings right
off the bat.” Navien units were one of many factors used in the building’s
LEED certification achievement.
Venting with 3-inch PVC reduces
installation time and material costs .
Since the units were installed on the
top floor, each could be individually
vented through the side wall .
Navien NP units provide
reliable and efficient
source of hot water for
Medical Center
Remote
Controller
Master
Reduced space requirements: Terry commented, “We had a very
limited space. It’s a very tight building. So, getting this much hot water
produced without a storage tank was huge for them, and being able to
do it in such a small footprint was very important.”
Easier, lower cost installation: Each NP‑240 NG unit is vented with 3"
PVC pipe. Terry summarized the benefits, “PVC is readily available and
contractors are very comfortable working with it. It’s a low cost material
and costs less to install since it’s so easy to work with.”
Hot
Cold
Gas
Hot
Cold
Gas
Hot
Cold
Gas
Condensate
Gas Supply
Domestic Supply
DHW
Supply
NP Multiple Units
Circulator
Check Valve
Storage
Vessel
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
More venting options: In this situation the heating units were installed
on the top floor, so a vent per unit was the easiest solution. But Terry
said for other installations it’s also easy to combine PVC vents to reduce
the number of penetrations for aesthetic purposes. “There is no right
or wrong choice on that. It’s more of a preference. It’s nice having the
option to do whatever you want.”
Durability and maintenance: Terry mentioned the advantages of
having two stainless steel heat exchangers in the Navien units. “Stainless
doesn’t scale up like copper and because of that, we don’t have to do a
recommended purge. The stainless heat exchangers last longer too.”
The nine Navien
units fit nicely
in a very tight
space where it
would be difficult
to fit large
storage tanks .
Navien water heaters were recommended based on their
industry-leading efficiency rating .
20
21
22
INDUSTRIAL
Manufacturer of car wash
products gets all the hot water
they need year round.
Trans‑Mate Incorporated
North Billerica, MA
In addition to the featured industrial case
study to the left, Navien products are efficiently
saving energy and supplying endless hot water
to many other companies . A selected group,
The Navien NP-240 system
currently
profiting
from
is so energy
efficient,
it Navien’s technology,
qualifies
for rebates from
is listed
below:
Situation:
Tim Hunt of Frank Gouveia Plumbing
remarked, “Trans-Mate has used the
Navien system for about eight months,
through the winter, with no reliability
problems . It’s not something they’ll need
to replace in a three to five-year period .”
Trans‑Mate, Inc., in North Billerica, MA, operates a 40,000‑square
foot facility to manufacture high quality professional car wash and car
detailing products under their own brand and for private label customers.
The plant requires a variable flow of warm water year round with a
1‑million BTU requirement and peak flow rates of 18‑20 GPM. Their
100‑gallon tank could not meet the demand in cold weather and needed
to be replaced every three years.
Solution:
Tom Gouveia of Frank Gouveia Plumbing worked with Tim O’Brien of
David Gooding Inc, Navien’s MA representative, and plant manager
Bob Ouellette of Trans‑Mate to develop a cost efficient system to
supply hot water year round and avoid the headache of replacing tanks
every three years. Tom removed the old tank and installed 5 cascaded
Navien NP‑240 NG units within two days. Venting was ganged for the five
units so only one additional hole was needed in the corrugated roof.
Trans‑Mate
takes a shine
to Navien
Hot
Efficient, constant supply of hot water all year round: Tim Hunt of
Frank Gouveia Plumbing commented, “The big advantage of cascading
is that if they only need a certain amount of water, then only one of them
will go and the rest stop. It’s not the same one running all the time. They
gang up, depending on the amount of hot water required. This is a big
bonus to extend the life expectancy of system.”
Gas
Simpler venting, less expensive installation: Unlike competitive
systems that would have required five penetrations in the roof, the
Navien system, allowed venting with just two openings. Tim Hunt
remarked, “That works out very, very well.” Hunt concluded, “If we’re
talking about aesthetics, space and convenience all in one package,
you cannot beat a Navien product.”
NP Multiple Units
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Longer life expectancy: Tim Hunt said, “we were called in because of
looking for an alternate way of getting hot water instead of that one tank.
At the time, the tank had died. The Navien stainless steel heat exchanger
is a bonus because we don’t always know about the water quality.
Copper is a problem in acidic water, whereas stainless steel is pretty
much impervious to that.”
To learn and see more, visit
www .Navien .com/Commercial
24
Cold
Communication Cable
Commun
DHW
Supply
Benefits:
Trans-Mate, Inc ., in North Billerica, MA,
has been a leader in making a wide
variety of high quality car wash and
automotive detailing products .
the state of Massachusetts .
“The fact that they got a
• Altec,
largeLexington,
rebate wasKYone of
• Buffalo
Trace determining
Distillery, Lexington, KY
the biggest
• Caraco
Pharmaceuticals,
factors,”
Tim Hunt said . Detroit, MI
• Chestnut Mountain Egg Farm, Flowery Branch, GA
• Coast Southwest, Arlington, TX
• Fanatic Brewing Company, Knoxville, TN
• Flat Creek Estate Winery, Marble Falls, TX
• Gold Mine Process (Gold Lake), Cochrane, ON
• Hilmy Cellars Winery, Fredericksburg, TX
• Kellogg’s Plant, Blue Anchor, NJ
• Moraine Vineyards, Baroda, MI
• Raytheon, Woburn, MA
• RW Zant Company, Los Angeles, CA
Slave 2-14
• Sandstone Cellars Winery, Mason, TX
• Sesame Court-Commercial, Vancouver, BC
• Trans-mate Incorporated, North Billerica, MA
25
27
INDUSTRIAL
Manufacturer of car wash
products gets all the hot water
they need year round.
Trans‑Mate Incorporated
North Billerica, MA
Situation:
Tim Hunt of Frank Gouveia Plumbing
remarked, “Trans-Mate has used the
Navien system for about eight months,
through the winter, with no reliability
problems . It’s not something they’ll need
to replace in a three to five-year period .”
Trans‑Mate, Inc., in North Billerica, MA, operates a 40,000‑square
foot facility to manufacture high quality professional car wash and car
detailing products under their own brand and for private label customers.
The plant requires a variable flow of warm water year round with a
1‑million BTU requirement and peak flow rates of 18‑20 GPM. Their
100‑gallon tank could not meet the demand in cold weather and needed
to be replaced every three years.
The Navien NP-240 system
is so energy efficient, it
qualifies for rebates from
the state of Massachusetts .
“The fact that they got a
large rebate was one of
the biggest determining
factors,” Tim Hunt said .
Solution:
Remote
Controller
Master
Communication Cable
Commun
Hot
Cold
Gas
Hot
Cold
Gas
Hot
Cold
Gas
Condensate
Gas Supply
Domestic Supply
DHW
Supply
Benefits:
Trans‑Mate
takes a shine
to Navien
Slave 1
Slave 2-14
Tom Gouveia of Frank Gouveia Plumbing worked with Tim O’Brien of
David Gooding Inc, Navien’s MA representative, and plant manager
Bob Ouellette of Trans‑Mate to develop a cost efficient system to
supply hot water year round and avoid the headache of replacing tanks
every three years. Tom removed the old tank and installed 5 cascaded
Navien NP‑240 NG units within two days. Venting was ganged for the five
units so only one additional hole was needed in the corrugated roof.
Trans-Mate, Inc ., in North Billerica, MA,
has been a leader in making a wide
variety of high quality car wash and
automotive detailing products .
According to
Bob Ouellette,
“Another Navien
bonus is a very neat
set up, off the floor,
easy to maintain,
and you have a
10-year warranty
on them . They’re
designed specifically
for commercial .”
Efficient, constant supply of hot water all year round: Tim Hunt of
Frank Gouveia Plumbing commented, “The big advantage of cascading
is that if they only need a certain amount of water, then only one of them
will go and the rest stop. It’s not the same one running all the time. They
gang up, depending on the amount of hot water required. This is a big
bonus to extend the life expectancy of system.”
NP Multiple Units
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
Simpler venting, less expensive installation: Unlike competitive
systems that would have required five penetrations in the roof, the
Navien system, allowed venting with just two openings. Tim Hunt
remarked, “That works out very, very well.” Hunt concluded, “If we’re
talking about aesthetics, space and convenience all in one package,
you cannot beat a Navien product.”
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
Longer life expectancy: Tim Hunt said, “we were called in because of
looking for an alternate way of getting hot water instead of that one tank.
At the time, the tank had died. The Navien stainless steel heat exchanger
is a bonus because we don’t always know about the water quality.
Copper is a problem in acidic water, whereas stainless steel is pretty
much impervious to that.”
24
Circulator
Check Valve
Storage
Vessel
25
T
Aquastat
Water needs vary
throughout the
year . Depending on
production of specific
formulas, Trans-Mate
requires a reliable flow of
hot water year round .
26
LEISURE
Honor Roll winner for “Best Private
Course” in New Jersey, Forsgate
Country Club saves up to $9,000
a month with efficient Navien units.
Forsgate Country Club
Monroe Township, NJ
In addition to the featured country club case
study to the left, Navien products are efficiently
saving energy and supplying endless hot water
to many other leisure facilities . A selected
group, currently profiting from Navien’s
technology, is listed below:
The old
Forsgate boiler
is still waiting
for its trip to
the scrapyard .
Situation
Ken Alexander of Alexander Plumbing,
Heating and Air Conditioning
commented on the efficiency of the
new Navien system . “The savings for
my customer are insane .”
For years the Forsgate Country Club, Monroe Township, New Jersey, relied
on a huge 2.6 million BTU fused steam boiler to power an indirect fired hot
water heater with a 750‑gallon tank. That steam boiler ran 24/7, resulting in
unsustainable energy bills. The Country Club has five kitchens and locker
room showers for men and women, so they have wide variance in hot water
requirements, rather than a continuous high demand.
Hot Domestic Supply
Pawtucket Country Club,
Pawtucket, RI
Solution
After consulting with Navien distributor APR Supply Company, contractor
Ken Alexander of Alexander Plumbing Heating and Air Conditioning removed
the old system and installed five Navien NP‑240 NG units and two new
80‑gallon tanks for extra capacity.
Benefits
Energy and maintenance savings: Ken Alexander from Alexander Plumbing
Heating and Air Conditioning commented, “Between maintenance on the
old system and gas bills, they are saving approximately $9,000.00 a month,
depending on the month. They’ve made their money back within a year.”
The five Navien NP-240 NG units perform
the same job as the previous boiler
in less than one tenth the space with
remarkable energy savings to boot .
Flexibility in meeting hot water demand: Ken described Forsgate’s
new system, “We installed the Naviens which heat 280 gallon tanks for the
kitchen but if everybody uses the locker rooms at the same time, they have
160 gallons (two 80‑gallon tanks) of hot water on top of the Naviens for a
huge supply of instant hot water.”
Space savings: The customer and the contractor appreciate the space
saving advantages. “The old boiler and tanks were about the size of a small
school bus,” Ken explained. “The five Navien units take up roughly 8‑feet of
wall space, doing the same job and far more efficiently.”
Country club replaces
water hazards
• AMF Bowling Alley, Spring, TX
• Body Works Fitness, Lubbock, TX
• Club Intrawest, Palm
Desert, CA
Insulated
Insulated
Storage
• Deepdale Golf Course,
Manhasset, NY Storage
Tank
Tank
• Edge Fitness, Trumbull, CT
• Forsgate Country Club, Monroe Township, NJ
T
T
• Honig Vineyard and Winery, Rutheford, CA
• Knockouts, Multiple Locations, TX
• Macatawa State Park, Holland, MI
• Municipal City Pool and Gym, Las Vegas, NV
• Pawtucket Country Club, Pawtucket, RI
• Plymouth Ice Arena, Plymouth, MI
• Proud Lake State Park, Wixom, MI
• Renaissance Point YMCA, Fort Wayne, IN
• Southampton Golf Club, Southampton, NY
• Twin Hills Country Club, Longmeadow, MA
• YMCA, Multiple Locations, USA
Cold Gas
(B)
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Easier installation/more options in venting: Unlike some other brands
that require a pipe‑in‑pipe system, Navien condensing units allow contractors
to use PVC pipe, saving labor and material costs. Ken also likes the options
available with PVC venting, “One of the nicer things about Naviens is they
can be common vented. We have three units common vented on two pipes.
Then we have the other two units common vented on another set of pipes.
We could have common vented them all on six‑inch pipes but with the space
requirements we just couldn’t get a six‑inch pipe to make the turns.”
To learn and see more, visit
www .Navien .com/Commercial
29
Hot
NP Multiple Units
with 2 Storage Tanks
Durability: Ken explained, “Navien uses stainless steel heat exchangers
which allow years of maintenance free operation. They’ll hold up a whole lot
better than copper.”
28
Slave 2-14
31
LEISURE
Honor Roll winner for “Best Private
Course” in New Jersey, Forsgate
Country Club saves up to $9,000
a month with efficient Navien units.
Forsgate Country Club
Monroe Township, NJ
The old
Forsgate boiler
is still waiting
for its trip to
the scrapyard .
Situation
Ken Alexander of Alexander Plumbing,
Heating and Air Conditioning
commented on the efficiency of the
new Navien system . “The savings for
my customer are insane .”
For years the Forsgate Country Club, Monroe Township, New Jersey, relied
on a huge 2.6 million BTU fused steam boiler to power an indirect fired hot
water heater with a 750‑gallon tank. That steam boiler ran 24/7, resulting in
unsustainable energy bills. The Country Club has five kitchens and locker
room showers for men and women, so they have wide variance in hot water
requirements, rather than a continuous high demand.
Forsgate Country Club, built
in 1931, appreciates the
long life expectancy of the
NP-240’s with its stainless
steel heat exchangers .
Hot Domestic Supply
Solution
Slave 2-14
After consulting with Navien distributor APR Supply Company, contractor
Ken Alexander of Alexander Plumbing Heating and Air Conditioning removed
the old system and installed five Navien NP‑240 NG units and two new
80‑gallon tanks for extra capacity.
Benefits
Communication
C
cation
e
Cable
Hot
Insulated
Storage
Tank
T
Insulated
Storage
Tank
Cold Gas
The five Navien NP-240 NG units perform
the same job as the previous boiler
in less than one tenth the space with
remarkable energy savings to boot .
Space savings: The customer and the contractor appreciate the space
saving advantages. “The old boiler and tanks were about the size of a small
school bus,” Ken explained. “The five Navien units take up roughly 8‑feet of
wall space, doing the same job and far more efficiently.”
Country club replaces
water hazards
Hot
Hot
Cold Gas
Cold Gas
Condensate
(B)
(B)
Gas Supply
(B)
T
(A)
Energy and maintenance savings: Ken Alexander from Alexander Plumbing
Heating and Air Conditioning commented, “Between maintenance on the
old system and gas bills, they are saving approximately $9,000.00 a month,
depending on the month. They’ve made their money back within a year.”
Flexibility in meeting hot water demand: Ken described Forsgate’s
new system, “We installed the Naviens which heat 280 gallon tanks for the
kitchen but if everybody uses the locker rooms at the same time, they have
160 gallons (two 80‑gallon tanks) of hot water on top of the Naviens for a
huge supply of instant hot water.”
Remote
Controller
Master
Slave 1
Cold
Domestic Supply
(A) Tankless Circulator (Bronze or S.S) Selected Shall be 4 GPM Max
per Tankless @ 37' Total Head (16 PSI) + pipe, valves, fittings & tank.
(B) Install Circuit Setters to Maintain Flow into Units @ 4 GPM Maximum.
NP Multiple Units
with 2 Storage Tanks
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Circulator
Check Valve
Storage
Vessel
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
Durability: Ken explained, “Navien uses stainless steel heat exchangers
which allow years of maintenance free operation. They’ll hold up a whole lot
better than copper.”
The exclusive
Forsgate Country
Club boasts five
kitchens, multiple
dining areas as
well as men’s and
women’s locker
rooms, all of which
use lots of hot water .
Easier installation/more options in venting: Unlike some other brands
that require a pipe‑in‑pipe system, Navien condensing units allow contractors
to use PVC pipe, saving labor and material costs. Ken also likes the options
available with PVC venting, “One of the nicer things about Naviens is they
can be common vented. We have three units common vented on two pipes.
Then we have the other two units common vented on another set of pipes.
We could have common vented them all on six‑inch pipes but with the space
requirements we just couldn’t get a six‑inch pipe to make the turns.”
28
29
30
MULTI-FAMILY
Culver Cove Resort and
Conference Center uses Navien
technology to provide year‑round
water heating efficiency
Culver Cove Resort
and Conference Center
Culver, IN
Situation
As a seasonal hotel-condo complex Culver
Cove Resort and Conference Center has
widely varied needs for hot water supply .
Navien tankless water heaters flexibility for
efficient flow for high and low demand .
The Culver Cove Resort and Conference Center is an 80‑unit
hotel‑condo complex located on Lake Maxinkuckee near Culver, Indiana.
As a seasonal resort, there is a wide variation in hot water demand.
Originally hot water was supplied from three utility rooms, each with six
100‑gallon commercial tank‑type heaters. Circulating pumps and mixing
valves were required to prevent scalding.
The five Navien units used two sets of four‑inch PVC vent pipes that ran
through the roof in an existing 12‑inch B vent.
Benefits
Efficient hot water supply: Jason said, “The five Navien units are
cascaded so when the master unit comes on, it triggers the next one in
line to help as needed, and so on until all units are running if necessary.
Each time a Navien unit comes on, it’s a different master‑slave situation,
so all five units have equal run times.” Clark added, “Unlike the old tank
system, we could eliminate the external circulating pump and mixing
valve since we can set the temperature at 120 degrees.” Another huge
factor in selecting Navien NPE was the internal recirculating pump and
buffer tank, which assure an uninterrupted flow of hot water.
Energy and water savings: “We have noticed a decrease in our
energy cost from NIPSCO, our local gas supplier — a real dollar savings
every month,” Rich remarked. “We have applied for an energy rebate.
I also have seen a decrease in our domestic water use.”
Easier installation: “One of the main reasons we went with Navien
is the ability to use PVC,” Jason said. “The common venting also
makes it less expensive. In this retrofit situation, we could use existing
penetrations to run our vents. That saved a lot of labor.”
32
Pickwick Apartments
Maple Shade, NJ
• Allison Apartments, Marlton, NJ
• Arbor Creek Apartments, Elk Grove, CA
• Assembly Row - Bay
Properties,
Somerville,
MAC
C
C
G H
G H
G H
• Brookside Apartments, Hudson, NH
• Callaway House - Off Campus Residence UT, Austin, TX
• Capitol Vanira Apartments, Atlanta, GA
• Charles Domestic
View Apartments, Boston, MA
Hot Water
• Cornerstone,
Langley, BC
Domestic
• CrippleRecirculation
Creek Condominiums, College Station, TX
Return
• Culver Cove Resort and Conference Center, Culver, IN
• Flats on 22, Chelsea, MA
• Flats on 44, Chelsea, MA
• Flats on D, Boston, MA
• Fort Wayne Housing Authority Sr . Apt ., Fort Wayne, IN
• Golden Age Towers, North Bay, ON
• Kunkel Square Apartments, Evansville, IN
• Moncton TriPlex, Moncton, NB
• Mustard Seed Housing Complex, Calgary, AB
• Nicholson Apt . at Oakland University, Rochester, MI
This drawing is for demonstration purposes only. All CAD drawings and specifications
• Paseo Leuz,
Barbara,
CA
may Santa
be found at
http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
• Paseo Santa Barbara, Santa Barbara, CA
• Pickwick Apartments, Maple Shade, NJ
• Roger’s Walk-55+ Community, Mount Laurel, NJ
• Roosevelt Avenue Apartments, Hudson, NH
• Rounder Records, North Cambridge , MA
• Schooner Cover Condominiums, Stamford, CT
• Sesame Court Apartments, Vancouver, BC
• The Hacienda’s Apartments, Salinas, CA
• The Mustard Seed Transitional Housing, Calgary, AB
• Tiber Croft Apartments, Owings Mills, MD
• University of Illinoiss - Apt . Building, Urbana, IL
• Villas Del Sol, Austin, TX
• Weidner Properties, Midland, TX
• Windsor at Maxwell’s Green, Somerville, MA
Commun
Communication
nicatio
on
Cable
Cab
ble
Rich worked with Mike Lambert of Mid City Supply and Clark Boyles of
PM and Associates, the Navien distributor and rep in northern Indiana.
They recommended installation of five cascaded Navien NPE‑240 units
for about one third of the complex — about 24 to 26 units from one to
three bedrooms each. Mike and Clark worked with Jason Richards,
owner of A Plus Plumbing Heating and Cooling to work out details for
sizing, designing and installing the system. The installation took about a
week and a half, including removing the old tanks.
Saving energy is always
in season at this resort
Five cascaded NPE-240
units supply hot water to
24-26 condo units, about
one third of the complex .
Rich West, executive director of Culver Cove was looking for a more
efficient hot water system to reduce energy costs, especially during low
demand periods.
Solution
Jason Richards recommends Navien for
its stainless steel heat exchanger . “It will
last a lot longer than copper or brass
heat exchangers on other tankless units .”
In addition to the featured resort case study
to the left, Navien products are efficiently
saving energy and supplying endless hot water
to many other multi-family facilities . A selected
group, currently profiting from Navien’s
technology, is listed below:
33
Communication
Commu
unicatio
on
Cable
Ca
able
Five NPE
Tankless External
Recirculation Mode
To learn and see more, visit
www .Navien .com/Commercial
35
MULTI-FAMILY
Culver Cove Resort and
Conference Center uses Navien
technology to provide year‑round
water heating efficiency
Culver Cove Resort
and Conference Center
Culver, IN
Situation
As a seasonal hotel-condo complex Culver
Cove Resort and Conference Center has
widely varied needs for hot water supply .
Navien tankless water heaters flexibility for
efficient flow for high and low demand .
The Culver Cove Resort and Conference Center is an 80‑unit
hotel‑condo complex located on Lake Maxinkuckee near Culver, Indiana.
As a seasonal resort, there is a wide variation in hot water demand.
Originally hot water was supplied from three utility rooms, each with six
100‑gallon commercial tank‑type heaters. Circulating pumps and mixing
valves were required to prevent scalding.
Five Navien heaters
are not only more
efficient, but they
also take up far less
space than the six
100-gallon tanks
they replaced .
Five cascaded NPE-240
units supply hot water to
24-26 condo units, about
one third of the complex .
Rich West, executive director of Culver Cove was looking for a more
efficient hot water system to reduce energy costs, especially during low
demand periods.
Solution
Commun
Communication
nicatio
on
Cable
Cab
ble
Rich worked with Mike Lambert of Mid City Supply and Clark Boyles of
PM and Associates, the Navien distributor and rep in northern Indiana.
They recommended installation of five cascaded Navien NPE‑240 units
for about one third of the complex — about 24 to 26 units from one to
three bedrooms each. Mike and Clark worked with Jason Richards,
owner of A Plus Plumbing Heating and Cooling to work out details for
sizing, designing and installing the system. The installation took about a
week and a half, including removing the old tanks.
Jason Richards recommends Navien for
its stainless steel heat exchanger . “It will
last a lot longer than copper or brass
heat exchangers on other tankless units .”
Saving energy is always
in season at this resort
The five Navien units used two sets of four‑inch PVC vent pipes that ran
through the roof in an existing 12‑inch B vent.
Benefits
Efficient hot water supply: Jason said, “The five Navien units are
cascaded so when the master unit comes on, it triggers the next one in
line to help as needed, and so on until all units are running if necessary.
Each time a Navien unit comes on, it’s a different master‑slave situation,
so all five units have equal run times.” Clark added, “Unlike the old tank
system, we could eliminate the external circulating pump and mixing
valve since we can set the temperature at 120 degrees.” Another huge
factor in selecting Navien NPE was the internal recirculating pump and
buffer tank, which assure an uninterrupted flow of hot water.
G
H
C
Communication
Commu
unicatio
on
Cable
Ca
able
G
H
C
Communication
nication
Cable
ble
G
H
C
Communication
Commu
unicatio
on
Cable
Ca
able
G
H
C
G
H
C
Condensate
Gas
Domestic Cold Water
Domestic
Hot Water
Domestic
Recirculation
Return
Five NPE
Tankless External
Recirculation Mode
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Pressure
Relief
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
Since they could use
PVC, more than one
unit could use common
intake and vent flues .
Contractor Jason
Richards said, “It’s a lot
less expensive to install
Navien systems vs . other
tankless units .”
Easier installation: “One of the main reasons we went with Navien
is the ability to use PVC,” Jason said. “The common venting also
makes it less expensive. In this retrofit situation, we could use existing
penetrations to run our vents. That saved a lot of labor.”
33
Expansion
Tank
Mixing
Valve
Energy and water savings: “We have noticed a decrease in our
energy cost from NIPSCO, our local gas supplier — a real dollar savings
every month,” Rich remarked. “We have applied for an energy rebate.
I also have seen a decrease in our domestic water use.”
32
Circulator
Check Valve
Storage
Vessel
34
OTHERS
Navien delivers steady stream of
hot water to wash as many as five
big trucks a day, plus supply all
other hot water needs
Village of Worth
Public Works Department
Worth, IL
Situation
Wayne
Demonbreun,
Worth, IL . DPW
Superintendent
selected Navien
for all their hot
water needs .
The Village of Worth, Illinois, was looking to reduce energy costs and still
supply enough hot water for their utility facility. The village maintains a
fleet of 30 trucks and needs to wash as many as five a day, plus supply
plenty of hot water to showers and wash up sinks for the 10‑man work
crew. Their old 80‑gallon water heater was not up the job.
Solution
Wayne Demonbreun, Superintendent of Public Works at the Village
of Worth, researched alternatives. When he studied Navien tankless
heaters, he liked the efficiency and ability to supply all the hot water
they needed, but only what they needed. Working with Mark Brickey
of Metropolitan Industries, they replaced their outdated system with
a Navien NPE‑240A.
Benefits
Energy savings: Wayne told us, “We looked at this Navien unit simply
for the purpose of saving money on gas. Our gas bill most likely would
go down with this unit because it doesn’t have to work all the time. That
was valuable to the village. So far, it’s been working out very nicely and it
accommodates our hot water use very well.”
The Public Works Department for the
Village of Worth, Illinois, washes as
many as five trucks a day from their
30-truck fleet .
Steady supply of hot water: “The Navien unit is designed to give
us hot water when we need it as long as we need it, and it does that,”
Wayne said. “At our facility, it accommodates every part of the hot water
needs for a regular public works department of our size. We can wash
trucks at about the same rate as with the 80‑gallon heater, but now we
don’t run out of hot water. It’s pretty much a smart machine. It doesn’t
keep the water hot when you’re not using it. You have an output of so
many degrees at the end of that hose no matter what.”
Municipal fleet keeps
on trucking with
the help of Navien
In addition to the featured DPW case study
to the left, Navien products are efficiently
saving energy and supplying endless hot water
to many other types of facilities . A selected
This Navien unit replaced
group,
currently
profiting from Navien’s
an outdated
80-gallon
water heater .
to
technology,
isAccording
listed below:
Wayne Demonbreun,“The
Village bought it to save
utility costs . I believe we’re
• Alcorn County Prison, Corinth, MS
going to fare pretty well in
• Bearspaw
Water Treatment Plant, Calgary, AB
that respect .”
• Bryan Federal Prison, Bryan, TX
• Burton Fire Station, Burton, MI
• Camp Shelby Army Training Site, Hattiesburg, MS
• Car Wash Bays, Grande Prairie, AL
• City of Calgary Water Treatment Plant, Calgary, AB
• Dekalb County Jail, Auburn, IN
• Fort Knox Admin Building, Fort Knox, KY
• Glenmore Water Treatment Plant, Calgary, AB
• Guru Nanak Sikh Gurdwara Temple, Surrey, BC
• Hy-Vee Grocery Store, Multiple Locations, USA
• Jefferson County Jail, Beaumont, TX
• LDS - Latter Day Saints, Multiple Locations, USA
• Luxe Pet Resort, West Roxbury, MA
• Mega Mat Laundry, White Plains, NY
• Mike’s Truck Wash, Lebanon, IN
• Montgomery County Fire Department, Montgomery, TX
• Napoleon Township Hall, Napoleon, MI
Domestic Hot Water
• Navy Base, Port Hueneme, CA
• Pilot Travel Center / Truck Stop, Fort Wayne, IN
• Quick Suds Laundry, Fort Worth, TX
• Raytheon Corp-Defense and Aerospace Systems,
Waltham, MA
• Rick’s Cleaners, Austin, TX
• South Dakota Air National Guard, Sioux Falls, SD
• Spin City Laundry, San Antonio, TX
• St . Catherine’s Church, Riverside, CT
• Stripes Convenience Stores, Corpus Christi, TX
• Synagogue, Brooklyn, NY
• Village of Worth Public Works Dept, Worth, IL
• Water Treatment Plant, Calgary, AB
• Wayne Brown Correctional Facility, Nevada City, CA
One NPE
Tankless Internal
Recirculation Mode
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Quiet, cool operation: The Navien system runs quieter than traditional
tank water heaters. “You don’t even hear them run,” said Wayne.
“Another thing,” he added, “they run a lot cooler because they are so
efficient. That’s a real advantage in the summer when we’re trying to
keep the room cooler.”
To learn and see more, visit
www .Navien .com/Commercial
36
37
39
OTHERS
Navien delivers steady stream of
hot water to wash as many as five
big trucks a day, plus supply all
other hot water needs
Village of Worth
Public Works Department
Worth, IL
Situation
Wayne
Demonbreun,
Worth, IL . DPW
Superintendent
selected Navien
for all their hot
water needs .
The Village of Worth, Illinois, was looking to reduce energy costs and still
supply enough hot water for their utility facility. The village maintains a
fleet of 30 trucks and needs to wash as many as five a day, plus supply
plenty of hot water to showers and wash up sinks for the 10‑man work
crew. Their old 80‑gallon water heater was not up the job.
Municipal
governments
struggle to manage
DPW costs . The
Navien system
helps the Village
of Worth supply all
the hot water they
need at the most
affordable cost .
This Navien unit replaced
an outdated 80-gallon
water heater . According to
Wayne Demonbreun,“The
Village bought it to save
utility costs . I believe we’re
going to fare pretty well in
that respect .”
Solution
Wayne Demonbreun, Superintendent of Public Works at the Village
of Worth, researched alternatives. When he studied Navien tankless
heaters, he liked the efficiency and ability to supply all the hot water
they needed, but only what they needed. Working with Mark Brickey
of Metropolitan Industries, they replaced their outdated system with
a Navien NPE‑240A.
G
Domestic Hot Water
Benefits
Steady supply of hot water: “The Navien unit is designed to give
us hot water when we need it as long as we need it, and it does that,”
Wayne said. “At our facility, it accommodates every part of the hot water
needs for a regular public works department of our size. We can wash
trucks at about the same rate as with the 80‑gallon heater, but now we
don’t run out of hot water. It’s pretty much a smart machine. It doesn’t
keep the water hot when you’re not using it. You have an output of so
many degrees at the end of that hose no matter what.”
Municipal fleet keeps
on trucking with
the help of Navien
C
Condensate
Gas
Domestic Cold Water
Energy savings: Wayne told us, “We looked at this Navien unit simply
for the purpose of saving money on gas. Our gas bill most likely would
go down with this unit because it doesn’t have to work all the time. That
was valuable to the village. So far, it’s been working out very nicely and it
accommodates our hot water use very well.”
The Public Works Department for the
Village of Worth, Illinois, washes as
many as five trucks a day from their
30-truck fleet .
H
One NPE
Tankless Internal
Recirculation Mode
This drawing is for demonstration purposes only. All CAD drawings and specifications
may be found at http://www.navienamerica.com/Engineers_Architects/Page1/Specifications
Circulator
Check Valve
Storage
Vessel
Pressure
Relief
Valve
Expansion
Tank
Mixing
Valve
Full-port
Ball Valve
DHW Circulator
w/Aquastat & Check Valve
T
Aquastat
Quiet, cool operation: The Navien system runs quieter than traditional
tank water heaters. “You don’t even hear them run,” said Wayne.
“Another thing,” he added, “they run a lot cooler because they are so
efficient. That’s a real advantage in the summer when we’re trying to
keep the room cooler.”
The Navien system is
also used to supply hot
water to wash up sinks
and showers for the
DPW crew .
36
37
38
Global technology.
Local solutions.
Contact your local Navien representative
to learn how Navien tankless technology is
bringing the most energy efficient hot water to
your customer’s business and/or residence.
The Leader in Condensing Technology
To learn more visit: www.Navien.com/commercial
W
E
M
A
K
E
I
T
E
A
S
Y
T
O
G
O
T A
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K
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