HEAT PUMP DIGITAL THERMOSTAT Model 43057 Owners Manual 1
Congratulations! Your new CTC thermostat will provide years of reliable service. Using this digital thermostat will provide more uniform comfort in your home through the seasons. Thank you for buying a Climate Technology product! Please read this manual for complete instructions on installing and operating your thermostat. If you require further assistance, call CTC Technical Support at 1-800-676-7861 from 7am to 7pm Central Time. Remove the mylar label from the display window.
IMPORTANT INFORMATION 1.This thermostat is designed to work on the following systems: • Single-Stage Heat Pump • Mulit-stage Heat Pump (up to 2 heating and 2 cooling) 2.Temperature Range This thermostat can be set between 45°F and 95°F (7°C and 35°C).However, it will display room temperatures from 30°F to 99°F (0°C and 37°C). “HI” will be displayed if the temperature is higher than 99°F (37°C), and “LO” will be displayed if the temperature is lower than 30°F (0°C).
Wire Labeling • CAUTION! TURN OFF POWER TO THE HEAT PUMP SYSTEM BEFORE YOU ATTEMPT TO ACCESS THE THERMOSTAT’S WIRING. • IMPORTANT! BEFORE DISCONNECTING ANY WIRES FROM THE EXISTING THERMOSTAT, APPLY THE PROVIDED SELF-ADHESIVE LABELS TO THE WIRES. • Use the information in Table 1 below and the provided adhesive labels to label the wires. IGNORE THE COLOR OF THE WIRES since these do not always comply with the standard. If the terminal letter on the existing thermostat is. . . . . .
Mount Wallplate • Remove the wallplate from the thermostat by pressing the release tab on the bottom of the thermostat. See Figure 2. • Reposition wallplate, pulling wires through large opening. Insert provided mounting screws into wall anchor and tighten. See Figure 3. Release Tab Figure 2 • Position wallplate on wall and pull existing wires through the large opening, then level for appearance.
Connect Wires and Mount Thermostat to Wallplate • Match and connect the labeled wires to the appropriate coded terminal screws on the wallplate. See Figure 4. Ignore any wires which may be present, but which were not connected to the old thermostat. • 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.
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Switches and Buttons Switches and Buttons H G A F B C sys em aux em heat heat off cool system A LCD Readout - displays indoor temperature, set temperature, and information about the heat pump system’s operation and status. B System Switch - “em heat” is the Emergency Heat. NOTE: The Emergency Heat Mode is not an energy saving mode, so use it only when necessary. “heat” is the normal heat mode. “off” turns the system off. “cool” is the normal cooling mode.
LCD Display LCD Display A K B C J D I A B C D E F G H I J temp - the large number being displayed is either the indoor temperature or the set temperature. em - emergency heat is turned on. heat - normal heat is turned on. cool - normal cooling is turned on. fan - indicates the fan is running. st 1 - comes on when you set the Stage 1 heat and cool span. st 2 - comes on when you set the Stage 2 heat and cool span. Filter button - resets the filter time counter.
OPERATION Review the Set Temperature 1. Slide the “system” switch to either the “heat” position or the “cool” position. 2. Press either the Up or Down button for less than one second. The LCD Display will show “temp”, “set”, and the set temperature. Change the Set Temperature 1. Press and hold either the Up or Down button for more than one second. The LCD Display will show “temp”, “set”, the set temperature. 2. To raise the Set Temperature, press the Up button.
To set the Residual Cooling Fan Delay: 1. Press the Up and Down buttons at the same time again and hold them for three seconds. The LCD Display will show “cool”, “set”, and the current Residual Cooling Fan Delay time in seconds (0, 30, 60, or 90). 2. Press the Up button to increase the Residual Cooling Fan Delay time. Press the Down button to decrease the Residual Cooling Fan Delay time. To set the Refresh Cycle Time: 1. Press the Up and Down buttons at the same time again and hold them for three seconds.
TROUBLESHOOTING Problem WIRING DIAGRAM Solution System continues to operate in the Off position 1. Replace thermostat. Thermostat permanently reads “HI”, “LO” or “E1” after pressing the Reset button 1. Replace thermostat. 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.
Climate Technology Corp. 2500 FRISCO AVENUE MEMPHIS, TN 38114 A Hunter Fan Company 24 © 2006, Climate Technoogy Corp. Form No.
