2388 GB produktblade

EZC
FH 3 : Page 3.2 : 02.07
OJ Microcenter
WATERLINE
MICROCENTER
FOR
UNDERFLOOR
HEATING
Microcenter EZC-12 and EZC-32
Application
EZC microcenter is suitable for
connecting multiple room thermostats
and electric actuators (thermo heads)
on, for example, an underfloor heating
system.
• Recommended for control of
underfloor heating in hydronic
installations
• Connection of up to 8 thermostats
• Connection of up to 8 actuators
• Versions for 230V AC or 24V AC
connection
• Demand controlled pump relay
• Demand controlled relay for heating
source (boiler)
• Built-in switch
• Night setback options
FUNCTION
Time control
An external time control can be connected for either
switching off the installation during night times, or for
generating night setback signal to the thermostats.
Pump out
The EZC has a volt free relay output for pump control that
will be energised when any connected room thermostat
calls for heat.
Demand output
The EZC has a second volt free relay output that can be
used to enable a boiler, or to open a motorised valve.
It is permissible to connect more than 1 head to a single
terminal, provided that both heads are to be controlled by
the same room thermostat.
PRODUCT PROGRAMME
SUPPLY
CONNECTIONS
THERMO HEADS THERMOSTATS
TYPE
230V AC
8
8
EZC-12-8
230V AC
4
4
EZC-12-4
24V AC
8
8
EZC-32-8
24V AC
4
4
EZC-32-4
EZC Microcenter is delivered including cover type ETT-KH
© 2008 OJ Electronics A/S
OJ ELECTRONICS A/S
T. +45 73 12 13 14
STENAGER 13B
F. +45 73 12 13 13
DK-6400 SØNDERBORG
OJ@OJ.DK
DENMARK
WWW.OJ.DK
EZC
EMR
BR899A05
Dimensions (mm)
EZC Microcenter in combination with temperature
controller type EMR
TECHNICAL DATA
Supply
Input
Output
Input time switch
EZC-12-8
230V AC ±10%, 50-60Hz
8 x 230V AC
8 x 230V AC, max. 2A
230V AC
EZC-12-4
-
4 x 230V AC
4 x 230V AC, max. 2A
EZC-32-8
24V AC ±10%, 50-60 Hz
8 x 24V AC
8 x 24V AC, max. 2A
EZC-32-4
-
4 x 24V AC
4 x 24V AC, max. 2A
Max output total for actuators
10A
Pump and demand relay
2 x SPST, volt free 24V AC max 6A or 230V AC max. 6A
Interrupter, main supply
only EZC-12-8 and EZC 32-8
STAT 7
MTU
STAT 4
1
2
4
5
1
2
4
5
1
2 3 4
1
3
LINK
For night setback insert one of
the two links depending on the type of
thermostat (see EZC instructions)
LINK
NSB N 1 N 1 L1 L1
L C N
TYPE OF NSB
5 6 7 8
L1 L1 N 1 N 1 NSB
230V ROOM THERMOSTATS
POWER
I
MICROCENTER
EZC-12
0
HEAT DEMAND
NSB LINK
TIME
SUPPLY
230V
I O
I O
L N
LINK
LINK
MAINS SUPPLY
230VAC FROM
10 AMP FUSED
ISOLATOR
L
N
PUMP DEM.
PE
O I
O I
230V THERMO HEADS
N1 N1 1 2
3 4
5 6
7 8 N1 N1
LINK
PE
N
HEAD 1
HEAD 6
HEAD 2
HEAD 7
L
UNDERFLOOR
PUMP
VOLT FREE OUTPUT FOR
BOILER CONTROL, OR
DEMAND SIGNAL FOR
COMPENSATOR
© 2008 OJ Electronics A/S
24V AC
3.3.2-02.07-EZC-GB · Subject to alterations · ® The OJ trademark is a registred trademark belonging to OJ Electronics A/S
MTU
BASIS WIRING DIAGRAM FOR
230V MICROCENTER EZC 12-8
WITH NIGHT SETBACK
BR901A17
Type