Installation Instructions

Transcript

Installation Instructions DIGITAL THERMOSTAT 53DFS250-FS Heat Cool and Cooling Only STEP #1 : A. Proper installation of the thermostat will be accomplished by following these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance. o Am PREPARATION Mo COOL AUTO B. Assemble tools and recommended Junction Box. WALL HEAT FLATSTAT Wire Cutter and Stripper EXTENDS LESS THAN 3/8" FROM THE WALL. Flatstat in Small J-Box .366” PROGRAMMABLE For best operation, install the thermostat in a junction box that is free from drafts that originate inside the wall. Table of Contents STEP #1 PREPARATION STEP #2 WIRE CONNECTIONS SAMPLE WIRING DIAGRAM STEP #3 TEST OPERATION TROUBLESHOOTING WALL Flat Blade Screwdriver 1 1 2 2 2 IMPORTANT: Follow Installation Instructions carefully. C. Carefully unpack the thermostat. Save the screws, bracket, and instructions. D. Power to the system should be off for installation or replacement. STEP #2 Refer to the chart below, or the wiring diagrams that follow. FUNCTION CAUTION: DISCONNECT POWER TO THE SYSTEM BEFORE REMOVING THE OLD THERMOSTAT AND INSTALLING THE NEW THERMOSTAT. ! This device complies with Part 15 of the FCC rules. Operation 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. WIRE CONNECTIONS Lo Fan Compressor Heating 24 v Power Common Rev. Valve Hi Fan Remote Sensor +5vdc Remote Sensor Signal Remote Sensor Ground Dry Contact Switch 1 Dry Contact Switch 2 INSTALL ON THE CONNECTOR MARKED G1 Y H2 R C O* G2 RS+5 RS RS GND CK1 CK2 *Not applicable for use with Duct-Free Splits heat pump systems. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 111 Catalog No. 535-325 Printed in U.S.A. Form 53-1SI Pg 1 11-04 Replaces: New Book 1 4 Tab 3e 2f Sample Wiring Diagram HEAT-COOL/ COOLING ONLY STEP #3 A. Turn the power on to the system. 3 Conductor 18 gage unshielded cable from the thermostat to the remote sensor. B. Press the MODE button until the HEAT icon appears on the display. Press the up/down buttons until the set point temperature is 10 degrees above room temperature. The unit should turn on. RS-GND RS RS+5 H2 G2 G1 Y O R CK1 GND C RS RS+V TEST OPERATION C. Press the MODE button and the COOL icon appears on the display. Press the up/down buttons until the set point temperature is 10 degrees below room temperature. The unit should turn on. NOTE: Most equipment has a time delay between cool and heat cycles. 2 Conductor 18 gage unshielded cable from the Time Clock to the Thermostat Dry Contacts. TROUBLESHOOTING SYMPTOM The air conditioning does not attempt to turn on. C O HIGH FAN G2 G1 REVERSING VALVE HEAT H2 LO FAN COMPRESSOR POWER R COMMON Y 8 Conductor 18 gage unshielded cable from the thermostat to the equipment. The display is blank. CAUSE The compressor timer lockout may prevent the air conditioner from turning on for a period of time. Lack of proper power. REMEDY Consult the Owner’s Manual in the setup section to defeat the cycles per hour and compressor time guard. Make sure power is turned on; confirm 24 vac between R and C. NOTE: H2 connection is not required for cooling only systems. LISTED Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 111 Catalog No. 535-325 Printed in U.S.A. Form 53-1SI Pg 2 11-04 Replaces: New Book 1 4 Tab 3e 2f