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Crestron CHV-TSTATEX-FCU infiNET EX Thermostat (Fan Coil Unit)

Operations & Installation Guide – DOC. 7206C infiNET EX Thermostat (Fan Coil Unit): CHV-TSTATEX-FCU

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DIP Switch Setup

The following describes the CHV-TSTATEX-FCU DIP switch settings.

1. Install two AA batteries (included) in the battery compartment.

2. Locate the DIP switches inside the unit and configure the parameters per the

tables below.

DIP Switch Settings

Left Switch

# DESCRIPTION ON OFF

4 Lockout setup mode Unlocked Locked

HOLD button behavior

Toggles between F/C

Toggles Hold mode

2 Medium fan speed Enabled Disabled

1 Low fan speed Enabled Disabled

Right Switch

# DESCRIPTION ON OFF

Heat mode

Enabled Disabled

Cool mode

Enabled Disabled

Auto mode

Enabled Disabled

Auto mode behavior

Single setpoint Dual setpoint

By default, the CHV-TSTATEX-FCU is configured to be powered by two AA

alkaline batteries. To extend battery life, the device also receives power from the

HVAC system by drawing a small amount of current through the heat or cool

terminals. This is known as Steal Power mode.

To enable this feature, locate the power switch inside the unit and slide it to STEAL

(This is the default factory setting on the CHV-TSTATEX-FCU).

Power Switch

STEAL 24VAC

NOTE: Steal Power mode does not draw enough current to cause the external heat

or cool relays to close. More specifically, when the unit is not making a call for heat,

it draws power through the R and W terminals. When the unit is making a call for

heat, it draws power through the R and Y terminals. (This does not work if the

thermostat has been wired for a cool only application.) The CHV-TSTATEX-FCU

must be wired for heat control in order to take advantage of Steal Power mode.

NOTE: In Steal Power mode, even when an auxiliary power source is available, the

unit continues to enter a communications sleep state, waking every 30 seconds or

one minute (based on the infiNET EX Sleep Time setting) to exchange data with the

control system. Refer to “Remote Operation” which starts on page 25

for details.

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