Hot Water Valve Type
(setup step 23)
NORMAL CLOSED = Usual setting, hot
water valve does not allow water flow
when unpowered
NORMAL OPEN = Hot water valve allows
water flow when unpowered
Options, NORMALLY OPEN and NORMALLY
CLOSED, default = NORMALLY CLOSED.
Chilled Water Valve Type
(setup step 24)
NORMAL CLOSED = Usual setting, chilled
water valve does not allow water flow when
unpowered.
NORMAL OPEN = Chilled water valve allows
waterflow when unpowered.
Options, NORMALLY OPEN and NORMALLY
CLOSED, default = NORMALLY CLOSED.
These steps configure the type of water valve(s) connected to the thermostat. A normally
closed valve allows no water flow when no power is applied to it. A normally open valve allows
water flow when no power is applied to it. Some 4 pipe fancoils use a normally closed chilled
water valve with a normally open hot water valve. If you have a two pipe fancoil, the setting in
Setup Step 24 for CHILLED WATER VALVE will apply to the single valve in use.
Installer Setup
21
