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Installer Setup

Hot Water Valve Type (setup step 23)

• NORMAL CLOSED = Default setting, hot

water valve does not allow water ow

when unpowered

• NORMAL OPEN = Hot water valve

allows water ow when unpowered

Chilled Water Valve Type (setup step 24)

• NORMAL CLOSED = Default setting,

chilled water valve does not allow water

ow when unpowered.

• NORMAL OPEN = Chilled water valve

allows waterow when unpowered.

These steps congure the type of water valve(s) connected to the thermostat.

A normally closed valve allows no water ow when no power is applied to it. A

normally open valve allows water ow 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.

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IEC E055-71520330 Specifications

General