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HEAT PUMP DIGITAL THERMOSTAT
Model 43057 Owners Manual
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TABLE OF CONTENTS Congratulations! Your new CTC thermostat will provide years of reliable service. Using this digital ther- 4 Important Information 4 Installation mostat will provide more uniform comfort in your home through the seasons. Thank 4 - What You Need you for buying a Climate Technology product! 5 - Remove Old Thermostat 6 - Wire Labeling Please read this manual for complete instructions on installing and operating your 8 - Mount Wallplate thermostat. If you re
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Remove Old Thermostat IMPORTANT INFORMATION CAUTION: Do not remove any wiring from the existing thermostat before reading these 1.This thermostat is designed to work on the following systems: instructions carefully. Wires must be labeled prior to removal. • Single-Stage Heat Pump IMPORTANT! Turn off the power to the HVAC system at the mainpower panel or at the • Mulit-stage Heat Pump (up to 2 heating and 2 cooling) HVAC system. Remove existing thermostat cover and thermostat. See Figure 1. Som
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Wire Labeling • After labeling the wires, disconnect them from the existing thermostat terminals. • Remove existing wallplate. To make sure wires do not fall back into wall opening, you may • CAUTION! TURN OFF POWER TO THE HEAT PUMP SYSTEM BEFORE YOU ATTEMPT want to secure them to the wall. TO ACCESS THE THERMOSTAT’S WIRING. • If the hole in wall is larger than necessary for wires, seal the hole with insulating material so • IMPORTANT! BEFORE DISCONNECTING ANY WIRES FROM THE EXISTING that no
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Connect Wires and Mount Thermostat to Wallplate • On the back of the thermostat are the System Set-Up Switches. See Figure 5. If the heat pump system has an electric auxiliary system, then slide the #1 switch to HE position. If the heat pump system has a • Match and connect the labeled wires to the appropriate coded terminal screws on the wallplate. See gas auxiliary system, then slide #1 switch to the HG position. Figure 4. Ignore any wires which may be present, but which were not connected
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LCD Display LCD Display A temp - the large number being displayed is either the indoor temperature or the set temperature. B em - emergency heat is turned on. C heat - normal heat is turned on. A K D cool - normal cooling is turned on. E fan - indicates the fan is running. B F st 1 - comes on when you set the Stage 1 heat and cool span. G st 2 - comes on when you set the Stage 2 heat and cool span. C H Filter button - resets the filter time counter. I alpha-numeric - displays temperature (eithe
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OPERATION Setting Options system The following Options are available on your thermostat: em Review the Set Temperature 1. 1st stage span - The factory setting for Stage 1 heating and cooling is 1, meaning that your thermostat will heat 1. Slide the “system” switch to either the “heat” position or the cycle at 1°F (0.5°C) above and below the set temperature in Stage 1. If the system is cycling too fast or “heat” position heat “cool” position. too slow, then the Span can be adjusted to change
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To set the Residual Cooling Fan Delay: TROUBLESHOOTING 1. Press the Up and Down buttons at the same time again and hold them for three seconds. The LCD Problem Solution Display will show “cool”, “set”, and the current Residual Cooling Fan Delay time in seconds (0, 30, 60, or 90). Scrambled or double 1. Remove the clear Mylar decal form the LCD Display. 2. Press the Up button to increase the Residual Cooling Fan Delay time. Press the Down button to decrease display (numbers over the Residual
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TROUBLESHOOTING WIRING DIAGRAM Problem Solution System continues to op- 1. Replace thermostat. erate in the Off position Thermostat permanently 1. Replace thermostat. reads “HI”, “LO” or “E1” after pressing the Reset button If you experience any other problems with your CTC thermostat, call CTC Technical Support at 1-800-676-7861 from 8am to 5pm Central Time. 22 23
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Climate Technology Corp. 2500 FRISCO AVENUE MEMPHIS, TN 38114 A Hunter Fan Company © 2006, Climate Technoogy Corp. Form No. 41982-01, 03/31/06 24
