Honeywell CT70 User Manual download pdf (Page 3)

HOW TO USE THIS GUIDE

Before you disconnect the wires and remove your

existing thermostat, be sure this new thermostat, see the

CT70 wiring hookup diagram, will replace it and that you

understand how you will reconnect the wiring. To do that,

proceed as follows:

Step 1

Find the manufacturer of your heat pump in the Table of

Contents, and turn to the appropriate page.

Step 2

Expose the wiring on your existing thermostat (the

subbase) and check that the terminals on your existing

thermostat coincide with the terminals shown in the

second column (Existing thermostat wiring).

If they do, read and follow the installation instructions

provided with the thermostat.

If they do not, call Honeywell Customer Assistance toll

free at 1-800-468-1502, Monday-Friday, 7:00 a.m. - 5:30

p.m. Central time, to be sure you can safely use this

thermostat to control your heat pump.

Before you call, please have the following information

available: thermostat model number and date code, heat

pump model number and manufacturer, and number of

wires connected to the thermostat. The date code is

usually stamped on the back of the thermostat and is a

four-digit number; for example, 9346.

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Honeywell CT70 User Manual Page 3