Hunter 42177 User manual

Owner’s Manual
Model
42177W
Form# 44043-01
20100219
©2010 Hunter Fan Co.
English

Table Of Contents
At A Glance
KnowYourermostat..................................................4
Installation
RemoveOldermostat................................................8
WiringDocumentation.................................................10
WiringLabeling.........................................................12
MountWallplateandermostat......................................14
WiringDiagrams........................................................20
SelectorSwitches.......................................................22
Operation
SelectorSwitches.......................................................24
SetTemperature........................................................25
FilterMonitor ..........................................................26
SpanSetting............................................................27
LowBatteryWarning...................................................28
ErrorMode.............................................................29
Features
AdditionalFeatures.....................................................30
Troubleshooting........................................................31
ermostat Assistance
TechnicalSupport......................................................33
Warranty
1yearGuarantee.......................................................34

Your new Hunter 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 Hunter product!
Please read this manual for complete instructions on installing and operating your
thermostat. If you require further assistance, call Hunter Technical Support at
1-888-830-1326 from 8am to 5pm Central Time.
This thermostat is designed to work on the following systems:
*Gas - Standing Pilot
*Gas - Electronic Ignition
*Gas - Fired Boilers
*Gas - Milivolt Systems
*Oil - Fired Boilers
*Oil - Fired Furnace
*Electric Furnace
*Electric Air Conditioning
This thermostat will NOT control single-stage or multi-stage heat pumps or
110/220 V baseboard electric heating systems.
This thermostat includes two #8 slotted screws and two wall anchors for mounting.
To install your thermostat, you should have the following tools and materials.
*Slotted Screwdriver(s)
*Small Philips screwdriver
*Hammer
*Electric drill and 3/16” bit
*Two 1.5 V (AA) size alkaline
batteries

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1. Reset: Press with a paper clip to reset the thermostat and return to power-up
settings.
2. System Switch: Selector switch for Heat, Cool, and Off.
3. Fan Switch: Fan switch for Automatic or Continuous fan operation..
4. Filter Key: Resets the lter change counter to zero.
5. Up and Down Keys: Keys for changing the Temperature setting. Also used
for adjusting the Span.
6. LCD Display: Shows Room Temperature, Set Temperature, and other feature
information as required.
7. Battery Compartment: Front access allows easy insertion of two AA 1.5V
batteries.
8. Front Doors: Covers keys and batteries when not used for neat appearance.
Open with one nger from top or bottom.
1
At A Glance
Know Your ermostat

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At A Glance
1Know Your ermostat

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1. Displays the thermostat is showing the temperature in Celsius of Farenheit.
2. When displayed, this warning indicates your furnace lter may need to be
checked or replaced.
3. Displays the thermostat is set to run HEAT or COOL.
4. Low battery warning, replace the batteries in the thermostat.
5. Indicates the current room temperature.
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At A Glance
Know Your ermostat

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At A Glance
1Know Your ermostat
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CAUTION: Do not remove any wiring from existing thermostat before reading
the instructions carefully. Wires must be labeled prior to removal.
IMPORTANT! Turn off the power to the furnace at the main power panel or
at the furnace.
Remove existing thermostat cover and thermostat. See Figure 1. Some thermostats
will have screws or other locking devices that must rst be removed. Once the
wall mounting plate is exposed, look for wires.
If wires are not visible, they may be connected to the back of the wallplate. Again,
look for screws, tabs, etc. Some models have doors that open to expose wires
and mounting screws.
2
Installation
Remove Old ermostat

©2010 Hunter Fan Company 9
Installation
2Remove Old ermostat
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RC
G
W
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Wallplate
ermostat
ermostat Cover
CoverWallplate
Figure 1.

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2
Installation
Wiring Documentation
Use table A. to write down your wire colors and the letter designations on the old
thermostat. This will allow you to keep a record of your old thermostat’s wiring
conguration should you need to refer to it at a later time.
This will also help our Technical Support Department determine your system type
and proper wiring, should you need to contact them. Wire color does not indicate
the function of the wire, this is being used only to help determine which wire has
what letter designation.