Installation guide

Crestron CHV-TSTATEX infiNET EX Thermostat

Operations & Installation Guide – DOC. 6989C infiNET EX Thermostat: CHV-TSTATEX

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DIP Switch Setup

The following describes the 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 System Type Heat/Cool Heat Pump

3 Heat Pump Mode Aux Heat Dual Fuel

2 Cool/HP Stages 1 2

1 Heat Stages 1 2

Right Switch

# DESCRIPTION ON OFF

4 Fan In Heat Disabled Enabled

3 Change Over Outputs Disabled Enabled

2 Cool SP Range Normal Extended

1 N/A N/A N/A

By default, the CHV-TSTATEX 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.)

Power Switch

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 RH and W terminals. When the unit is making a call for

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

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

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

1 2 3 4

STEAL 24VAC