Honeywell VisionPRO IAQ Guia De Instalacion página 4

VisionPRO ® IAQ Equipment Interface Module
EIM wiring guide — heat pump systems
THERMOSTAT
Bypass humidifier
Low speed fan
Ventilator
NOTE: Check other equipment manuals to verify proper terminal connections.
Restore power & check operation
NOTE: It is normal for the LED to blink continuously during startup, and while checking
equipment status (Auto Discover mode).
EQUIPMENT INTERFACE
MODULE
Jumpers
LED
Restore power and check LED:
• LED blinks rapidly: Normal information transfer.
• LED blinks once: Incoming message to EIM.
• LED blinks continuously: Wiring problem. Check
wiring to terminals 1, 2, 3.
• LED always off: Wiring problem. Check wiring to
terminals 1, 2, 3.
• LED always on: EIM may need replacement.
4
Changeover relay
Backup heat
(gas/electric)
Backup heat
(gas/electric)
Compressor
(stage 1)
Compressor
(stage 2)
Fan relay
System monitor