About The Erm5220R - Honeywell Home ERM5220R Guia De Instalacion

About the ERM5220R

• Wireless RedLink™ communication between condensing unit/
compressor or boiler and thermostat.
• Eliminates the need to run additional wires to your equipment, for
example, during a heat pump upgrade.
• Suitable for outdoor use.
• Temperature sensor terminals for outdoor temp sensors or indoor
freeze protection.
• LEDs for easy installation checkout.
• May reduce damage to homes since wiring/drilling is eliminated.
NOTE: The ERM5220R is compatible with updated
models THX9421R5021, TH8321R1001,
TH8320R1003, and TH8110R1008.
THM5421R1021 EIM is also required with
THX9421R5021. Optional with other models.
33-00135EFS—09
THERMOSTAT
ERM
BOILER
Fig. 1.
ERM
WIRE
CONDENSING
UNIT
MCR35654
2