Honeywell Home ERM5220R Guide D'installation page 9

Once power is connected, the "Compressor" (or "Boiler") LED should
illuminate green. (Fig. 9)
Compressor
Boiler
Connected
7. For compressors and boilers:
Put the thermostat in pairing mode.
New thermostat installation: When going through the initial setup the
thermostat display will ask "TSTAT CONTROLS AN EQUIP MODULE".
This refers to an EIM, not an ERM. See note below. The next screen
says "connect RedLINK Accessories?" The ERM is an accessory, so
select "yes", and then "next".
Existing thermostat installation: Select menu - installer options -
wireless manager - add device. See thermostat installation guide for
assistance.
NOTE: The ERM (equipment remote module) is not an EIM
(equipment interface module).
• If using a Prestige IAQ thermostat, the EIM (THM5421R) is
always needed, whether the ERM is used or not.
• If using a RedLINK VisionPRO model, the EIM is not needed
if:
(a) there are wire connections to R and C at the
(b) the R and C as well as furnace or air-handler wires are
8. Once the thermostat is in pairing mode, press and quickly
release the "Connect" button on the ERM.
9
CONNECTED LED STATUS
Flashing: Device Connecting
Connect
Green: Device Connected
Red: Not Communicating
MCR35659
thermostat subbase and the thermostat controls hot
water heat only (no cooling).
connected to the subbase of the thermostat.
Compressor
OR
Connected
Fig. 9.
CONNECTED LED STATUS
Flashing: Device Connecting
Boiler Connect
Green: Device Connected
Red: Not Communicating
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M35660