Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 02-DFC536SI Printed in U.S.A. Form 53-6SI Pg 1 11-05 Replaces: 53-3SI
Book 1 4
Tab 3 e 2 f
PROGRAMMABLE
STEP #1 PREPARATION 1
STEP #2 WIRE CONNECTIONS 1
SAMPLE WIRING DIAGRAM 2
STEP #3 TEST OPERATION 2
ADVANCED SETUP 2
ABOUT ADVANCED FEATURES
AND OPERATION 3
TROUBLESHOOTING 4
CALIBRATION 4
This device complies with Part 15 of the FCC rules. Op-
eration is subject to the following 2 conditions: (1) This
device may not cause harmful interference, and (2) This
device must accept any interference received, including
interference that may cause undesired operation.
Refer to the chart below, or the wiring diagram that
follows for thermostat functions and corresponding
thermostat connectors.
*Not applicable for use with Duct-Free Split heat pump systems.
Table of Contents
IMPORTANT: Follow
Installation Instructions
carefully.
CAUTION: DISCONNECT POWER TO THE SYS-
TEM BEFORE
INSTALLING THE NEW THERMOSTAT.
SERIOUS PERSONAL INJURY COULD RESULT.
STEP #1 PREPARATION
A.
Proper installation of the thermostat will be accom-
plished by following these step by step instructions. If
you are unsure about any of these steps, call a quali-
fied technician for assistance.
B.
Assemble tools:
C.
Carefully unpack the thermostat. Save the screws,
bracket, and instructions.
D.
Turn off the power to the system at the main fuse pan-
el. Most systems have a separate breaker for discon-
necting power to the indoor and outdoor units.
STEP #2 WIRE CONNECTIONS
FUNCTION
INSTALL ON THE
NEW THERMOSTAT
CONNECTOR MARKED
Lo Fan G1
Compressor Y
Heating H2
24 v Power R
Common C
Rev. Valve O*
Hi Fan G2
Flat Blade
Screwdriver
Wire Cutter
and Stripper
Installation Instructions
DIGITAL THERMOSTAT 53DFST2-NP
Heat Cool and Cooling Only
HEAT
AUTO
COOL
!
To Next Page
Need help?
General
