This is an upgraded IQ 2020 Heater Relay Board with jumpers & shortened screws for the front cover of the IQ2020. When part was upgraded, it went from three relays to two.
Replacement for part 74618
Upgraded
Two relays
This is an upgraded IQ 2020 Heater Relay Board with jumpers & shortened screws for the front cover of the IQ2020. When part was upgraded, it went from three relays to two.
Replacement for part 74618
Upgraded
Two relays