Climate Technologies 43855 Manuale utente
A Hunter Fan Company
2500 Frisco Ave.
Memphis, TN 38114
800-676-7861
www.climatetechnologyproducts.com
installation and
operation manual
Touchscreen Programmable ermostat
Model 43855
3 Stage Heat/2 Stage Cool
2
TABLE OF CONTENTS
IMPORTANT INFORMATION......................................4
INSTALLATION PROCEDURES....................................4
GENERAL OPERATING INSTRUCTIONS .....................21
DATE & TIME SETTINGS ............................................22
SYSTEM SETTINGS MENU .........................................27
USER SETTINGS MENU..............................................31
TEMPERATURE RANGE .............................................34
ENERGY STAR DEFAULT PROGRAMS ........................35
MANUAL OPERATION ...............................................36
PROGRAM OPERATION.............................................39
PROGRAM OVERRIDES..............................................46
ADDITIONAL FEATURES ............................................56
CLEAN SCREEN..........................................................56
CHANGE FILTER.........................................................60
ENERGY MONITOR FUNCTION..................................64
TROUBLESHOOTING..................................................68
WIRING DIAGRAMS ..................................................72
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Touchscreen Programmable ermostat
Model 43855
3 Stage Heat/2 Stage Cool
Congratulations!
Thank you for choosing a Climate Technology
Corporation programmable thermostat. Your new
CTC thermostat will provide years of reliable service
and year-round energy savings.
Please read this manual before beginning
installation and save this booklet for complete
operating instructions.
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IMPORTANT INFORMATION
This thermostat is designed to work on the following heating and cooling systems:
Up to 3 Stage Heat/2 Stage Cool Millivolt Systems
Heat Only or Cool Only Systems 2-wire Hydronic Systems
Single and Multi-Stage Heat Pumps AC or Hard-wired
Gas, Electric or Oil Systems
This thermostat is not designed for use with 110V/220 V systems. If you are unsure of
what kind of heating and cooling system you have, please contact a qualified HVAC
Technician for assistance.
INSTALLATION PROCEDURES
TOOLS
This thermostat includes two #8 slotted screws and two wall anchors for mounting.
To install your new thermostat, you will need the following supplies:
Flat-head screwdriver, Small Phillips-head screwdriver, Hammer
Electric drill and 3/16” bit, Three 1.5 Volt (AA) size alkaline batteries
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Y
RC
G
W
w
Y
RC
G
W
NOTICE OF CAUTION! DO NOT disconnect
the wires from the existing thermostat
before reading these instructions. The
wires must be labeled prior to removal
to ensure proper connection.
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Y
RC
G
W
Y
RC
G
W
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UNINSTALLING THE EXISTING UNIT
1. Turn the system power OFF at the existing thermostat. Turn the power to the
HVAC system OFF at the main power panel or at the furnace.
(Failure to turn off the power to the existing thermostat before removal could damage your
system.)
2. Remove the existing thermostat cover to access the wires from the wall. (Some
thermostats may have multiple covers, screws or other locking devices that must
be removed or disengaged.)
3. Locate, but do not disconnect the wires.
(If wires are not visible, they may be connected to the back of the wall plate. Some models may
have doors that open to expose the wires and mounting screws.)
4. Do not let the wires slip back into the wall during disconnection. You may want to
secure the wires to the wall as you disconnect them. After all wires are labeled,
disconnect each wire and remove the existing wall plate. (Any unused wires
should be capped with an approved electrical connector, such as electrical tape.)
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5. Using the provided stickers, label each wire according to the chart.
If the terminals are not labeled, contact a qualified HVAC technician.
NOTE: Wire colors do not always comply with standards; therefore, wire color should be ignored.
Refer to the existing terminal designation for proper identification.
If wires marked “Y” or “C” are both present, “C” may be a Common wire and provides 24 VAC
power to the unit. Connecting it greatly extends battery life. If there is no "C" wire, the thermostat
will run on battery power.
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