The
KMC REE-4106 relay module is designed primarily for the proportional control of
electric hot water valves on VAV terminal units in HVAC systems. The percent
on-time of the electric hot water valve varies in direct proportion to the CTE
series room thermostat signal. As the thermostat signal increases, the percent
on-time of the electric hot water valve increases.
The REE-4106 must be used in conjunction with VEP series 2-way and 3-way hot
water valves. Up to three VEP valves may be powered from an individual REE-4106.
Each module contains a built-in 9.1 VDC power supply which can be used to power
any CTE room thermostat (except CTE-5100 Series) when a VAV box flow controller
is not used.