Carrier 53DFS250-SL Installation Instructions Manual Download

Page: 8 / 8

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 02-DFC535SI

Printed in U.S.A.

Form 53-5SI

Pg 8

11-05

Replaces: 53-2SI

Book 1

Tab

3e 2f

Summary of Contents for 53DFS250-SL

Page 1: ...ble of Contents IMPORTANT Follow Installation Instructions carefully CAUTION DISCONNECT POWER TO THE SYS TEM BEFORE INSTALLING THE NEW THERMOSTAT SERIOUS PERSONAL INJURY MAY 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 qualified technician for assistance B Assem...

Page 2: ...thermostat Advanced Setup NOTE For cooling only the H2 connection is not required RS RS V RS GND 3 conductor 18 gage unshielded cable from the thermostat to the remote sensor 8 Conductor 18 gage unshielded cable from the thermostat to the equipment COMMON 24 v POWER LO FAN COMPRESSOR AUX HEAT HIGH FAN O H2 G1 R C Y G2 Y G1 R C H1 CK1 CK2 O G2 RS 5 RS RS GND H2 RS RS V RS GND 3 conductor 18 gage un...

Page 3: ... and Down buttons in to gether The Locked icon will appear on the display To unlock the buttons again press and hold the Mode button While holding the Mode button in press the Up and Down buttons in together The Locked icon will disappear from the display DRY CONTACT SWITCH The terminals are nor mally open Closing or completing the circuit will cause the thermostat to enter the Occupied 1 period T...

Page 4: ...at mode upon entering the Auto mode the Heat and Cool set points would be 80 F and 70 F Both set point tem peratures would then move up and down together in this example spread by 10 degrees by pressing the up or down buttons To move the Heat and Cool set point temperatures closer together enter the Cool or Heat mode by pressing the Mode button then adjust the set point temperatures closer togethe...

Page 5: ...onnect a 270 ohm 10 watt power resis tor at the unit as shown below For Problem A C For Problem Heat The air conditioning does not attempt to turn on The compressor timer lockout may prevent the air conditioner from turning on for a period of time See the Advanced Setup section to defeat the cycles per hour and compressor time guard The display is blank Lack of proper power Check for 24 vac betwee...

Page 6: ......

Page 7: ......

Page 8: ...scontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 02 DFC535SI Printed in U S A Form 53 5SI Pg 8 11 05 Replaces 53 2SI Book 1 4 Tab 3e 2f Copyright 2005 Carrier Corporation ...

Search results

Summary of Contents for 53DFS250-SL

Reviews:

Related manuals for 53DFS250-SL

Brands by name

Popular brands

Carrier 53DFS250-SL, Installation Instructions Manual

Search results

Summary of Contents for 53DFS250-SL

Reviews:

Related manuals for 53DFS250-SL

Brands by name

Popular brands