Cancels: New
IIK 53-1
10/1/04
MULTI-STAGE • SEVEN DAY PROGRAMMABLE
STEP #1 PREPARATION
1
STEP #2 WIRE CONNECTIONS
1
SAMPLE WIRING DIAGRAMS
2
STEP #3 TEST OPERATION
2
TROUBLESHOOTING
2
CALIBRATION
2
This device complies with Part 15 of the FCC rules. Opera-
tion 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 interfer-
ence that may cause undesired operation.
Refer to the chart below, or the wiring diagrams that
follow for thermostat functions and corresponding
thermostat connectors.
*Only used with Heat Pump Systems.
Table of Contents
IMPORTANT:
Follow Installation Instructions carefully.
CAUTION:
DISCONNECT POWER TO THE SYS-
TEM BEFORE INSTALLING THE THERMOSTAT.
STEP #1
PREPARATION
A.
Proper installation of the thermostat will be ac-
complished by following these step by step in-
structions. If you are unsure about any of these
steps, call a qualified 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
panel. Most systems have a separate breaker for
disconnecting 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
Remote 5vdc
RS+5
Remote Sensor Signal
RS
Remote Sensor Ground
RS GND
Dry Contact Switch 1
CK1
Dry Contact Switch 2
CK2
Defrost
H1
Flat Blade
Screwdriver
Wire Cutter
and Stripper
Installation Instructions
DIGITAL THERMOSTAT 53DFS250-SL-BRY
Cooling Only, Heat Cool, and Heat Pump
AUTO
o
o
Am
:
Su
COOL
HEAT
LISTED
