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Page 2

Follow the steps below to complete advanced setup.

Sample Wiring Diagram

HEAT-COOL/

COOLING ONLY

STEP #3

TEST OPERATION

A.

Turn the power on to the system.

B.

Press the Mode button until the

HEAT

icon

appears on the display. Press the Up or Down but-
tons until the set point temperature is 10 degrees
above room temperature. The unit will turn on.

C.

Press the Mode button and the

COOL

icon ap-

pears on the display. Press the Up or Down but-
tons until the set point temperature is 10 degrees
below room temperature. The unit will turn on.

NOTE: Most equipment has a time delay between
cool and heat cycles.

Advanced Setup

NOTE: H2 connection is not required for cooling only systems.

RS-GND

RS

RS+V

COMMON

LO FAN

COMPRESSOR

REVERSING

VALVE

HIGH FAN

HEAT

POWER

R

H2

G2

O

YG

1

C

8 Conductor 18 gage
unshielded cable from the
thermostat to the equipment.

2 Conductor 18 gage
unshielded cable from the
Time Clock to the Thermostat
Dry Contacts.

3 Conductor 18 gage
unshielded cable from the
thermostat to the remote
sensor.

CK1

GND

RS

RS+5

H2

G2

C

G1

Y

O

R

Adjust the maximum
allowable heat set point
when security is in effect.
(Step 8 only appears
 if Step 9 is not 0.)

          (35 to 99 F) 

 

Locked

Setup

   

 

H

EAT

Select the security level:
0=no security in effect
1=set point range limited
2=1+ program on all times
3=2 + prohibits set point
          changes

 

Locked

Setup

 

Select the cycles per
hour limit.
d=cycles per hour
limit defeated.
d1=d + defeat 5 min.
Compressor lockout.

(d, d1, 2 - 6)

 

 

Setup

Adjust the minimum 

difference

  between

cooling and heating
set points.

(0  to 6 F)

   

Setup

C

OOL

H

EAT

Adjust the deadband
from 1 to 6 degrees F.

Setup

   

Adjust the time of day
clock.

Select fan operation,
Fan        or Fan Auto.
      = Low Speed Fan
      = Medium Speed Fan
      = High Speed Fan

Select Heat Pump, On or Off.

Select the day of the
week.

On

Off

Am

Setup

Setup

    Mo

Fan

AUTO

Setup

   

   OFF

Setup

:

Adjust the time of day
clock.

Select fan operation,
Fan        or Fan Auto.
      = Low Speed Fan
      = Medium Speed Fan
      = High Speed Fan

Select the day of the
week.

Am

Setup

Setup

    Mo

Fan

AUTO

Setup

:

NOTE: Each step number is
located at the top right corner of
the display for easy reference.

Summary of Contents for 53DFS250-FS

Page 1: ... SYS TEM BEFORE REMOVING THE OLD THERMOSTAT AND INSTALLING THE NEW THERMOSTAT SERIOUS PERSONAL INJURY COULD RESULT 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 and recommended junction box For best operation install...

Page 2: ...Conductor 18 gage unshielded cable from the thermostat to the remote sensor CK1 GND RS RS 5 H2 G2 C G1 Y O R Adjust the maximum allowable heat set point when security is in effect Step 8 only appears if Step 9 is not 0 35 to 99 F Locked Setup HEAT Select the security level 0 no security in effect 1 set point range limited 2 1 program on all times 3 2 prohibits set point changes Locked Setup Select...

Page 3: ...tons Locked will appear on the display To unlock the buttons again press and hold the Mode button While holding the Mode button simul taneously press the Up and Down buttons Locked will disappear from the display DRY CONTACT SWITCH The terminals are normally open Closing or completing the circuit will cause the thermostat to enter Occupied 1 This fea ture allows an external device such as a centra...

Page 4: ...ead the tem perature from the remote sensor and ignore the tem perature sensor inside the thermostat The thermostat automatically recognizes when a remote sensor is con nected When reading the temperature from the re mote the degree icon above the room temperature blinks once a second The Override button on the remote sensor works slightly different than the Override button on the front panel Each...

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