Robertshaw 710-509 Valve 321894-709 As a critical safety limit

As a critical safety limit switch

the TB-PHP or similar heat pump specific models should be utilized to ensure proper reversing valve and strip heat control

This WH9C thermostat is compatible with a wide range of Lochinvar

and Emerson K55HXJEW-9056

this is a VLC (Valve Less Coil) body

Robertshaw 710-509 Valve 321894-709 As a critical safety limitThe Robertshaw 710 509 is a high performance Millivolt LP Gas Valve engineered for low capacity heating applications, specifically where space is at a premium. This 3 8" inlet and outlet control is a staple for service technicians working on liquid propane (LP) fireplaces, wall furnaces, and space heaters. Designed with a compact low profile body, it features multi positional mounting and three position outlets, providing the flexibility needed for