FIELD SERVICE BULLETIN

IMPORTANT NOTICE

Due to product updates, a SPDT relay is now required when replacing WarmFlo II (V2.38 & greater) controllers in applications where a WF-LGR2 or WF-LGR3 is the existing interface. This added relay is required as we no longer use the outdoor temperature (50° F) to differentiate between heating mode and cooling mode.

Please click here for details regarding this field service bulletin. If you have any further questions please do not hesitate to contact us.