Using the controller with the Emerson™ EX3 valve

Instruction Sheet
PA-00381
February 2015
XEV EX48 Supplement
Using the controller with the Emerson™ EX3 valve
The XEV EX48 is approved for use with the Emerson EX3, but some additional
parameters must be modified for proper valve operation. The following will guide
you through the initial setup with the EX3.
Parameter
Setting
XM678D-Ver.2.5
XEV22D-Vers. 1.1
1. Wire the controller to the other components and power source per the
standard instructions, but do not wire to the EX3 valve at this time.
tEu
uP
LSt
2
2. Ensure controller is powered and display is on.
USt
31
3. Press the SET + DOWN arrow keys for 3 seconds to access the parameter
menu and access the PR2 parameter set per the "XEV EX48 – Start-up
Procedures" (Emerson Instruction Sheet PA-00371).
4. Scroll to each of the parameters and set them to the values in the table.
5. Once all of the parameters are set, wire the controller to the EX3 valve per
the wiring diagram below.
If not already completed, set the remaining parameters to the desired values per
the system requirements as outlined in the "XEV EX48 – Start-up Procedures"
instruction sheet. However, the parameters listed on this sheet should not be
changed from the values shown in the table.
EmersonClimate.com/FlowControls
Technical Support: 1-866-625-8416
PA-00381 (2/15) Emerson is a trademark of Emerson Electric Co. ©2015 Emerson Climate Technologies, Inc. All rights reserved.
ESt
3
Sr
50
CPP
0
CHd
0
HFS
HAF
tEP
nu