ERM5220R EQUIPMENT REMOTE MODULE
33-00205—01 4
BUTTONS, LEDS AND TERMINALS
Fig. 3.
J
R
C
Y
Y2
T
DL
S1
S1
O/B
T
Equipment Remote Module − Model: ERM5220R
Connect
TAB FOR COVER SCREW: (#10-24 UNC 3/8
PHILLIPS PAN HEAD MACHINE SCREW.)
M36109
WIRING CHANNELS
DRAIN HOLES FOR WATER
MOUNTING TABS: SCREW ERM TO WALL
BY OUTDOOR UNIT OR BY BOILER.
SEE PAGE 6.
WIRING TERMINAL SCREWS: SEE TERMINAL
FUNCTIONS ON PAGE 5 AND FIGURES 10-15.
LEDS:
• Y LED INDICATES THE ERM IS CALLING FOR
STAGE 1 COMPRESSOR
• Y2/T LED INDICATES A CALL FOR STAGE 2
COMPRESSOR (THIS LED IS NOT ILLUMINATED
WITH A CALL FOR BOILER HEAT).
• O/B-T LED INDICATES A CALL FOR CHANGEOVER
VALVE WHEN ERM IS CONFIGURED FOR
COMPRESSOR, IT INDICATES A HEAT CALL WHEN
ERM IS CONFIGURED FOR BOILER.
• D LED INDICATES TERMINAL ENERGIZED BY THE
HEATPUMP DEFROST BOARD.
• L LED INDICATES TERMINAL ENERGIZED BY THE
SYSTEMS COMPRESSOR FAULT MONITOR.
LEDS:
COMPRESSOR: LIT WHEN R TO J JUMPER IS CONNECTED FOR CONTROLLING AN OUTDOOR UNIT.
BOILER: LIT WHEN R TO J JUMPER IS REMOVED FOR CONTROLLING A BOILER.
CONNECTION: FLASHING GREEN WHILE CONNECTING TO THERMOSTAT.
SOLID GREEN ONCE SUCCESSFULLY CONNECTED.
SOLID RED FOR UNSUCCESSFUL CONNECTION OR LOSS OF COMMUNICATION TO THERMOSTAT.
CONNECT BUTTON: PRESS/RELEASE ONE TIME TO LINK TO A COMPATIBLE RedLINK THERMOSTAT WHILE THERMOSTAT IS IN
THE “ADD DEVICE” MODE. PRESS/HOLD TO UNLINK THE ERM5220R FROM THE THERMOSTAT IT HAS PREVIOUSLY BEEN LINKED
TO. WHILE HOLDING THE BUTTON THE LED SHOULD GO OUT, THEN TURN SOLID RED, THEN GO OUT AGAIN.
Compressor
Boiler
Connection
Status Key:
Flashing Green Connecting
Green Connected
Red Not Communicating
For Compressor:
Jumper uses J and R
For Boiler:
Remove jumper
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