Hunter Fan Thermostat 40170 User Manual

Electronic/Mechanical  
ermostat  
installation and  
operation manual  
Model 40170  
 
42998-01 01-19-2007  
Table of Contents  
Important Information.................................................. 5  
Tools ............................................................................ 6  
Uninstalling the Existing Unit ...................................... 9  
Installing the Thermostat ........................................... 13  
installing the wall plate .................................... 15  
connecting the wires ........................................ 17  
attaching the thermostat .................................. 19  
Operation ................................................................... 23  
Indicators & Adjustments ........................................... 25  
Troubleshooting ......................................................... 28  
Wiring Diagrams ........................................................ 30  
 
Electronic/Mechanical  
Thermostat  
Model 40170  
Congratulations!  
Thank you for choosing a Hunter thermostat. Your new  
Hunter 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 operation instructions.  
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important information  
This thermostat is designed to work on the following  
heating and cooling systems:  
Gas – Standing Pilot  
Gas – Electronic Ignition  
Gas – Fired Boilers  
Gas – Millivolt Systems  
Oil – Fired Boilers  
Oil – Fired Furnace  
Electric Furnace  
Electric Air Conditioning  
Single-stage Heat Pump Systems  
This thermostat is not designed for Multi-stage heat pump  
systems or 110/220 V baseboard heating systems.  
If you are unsure what kind of heating and cooling system  
you have, please contact a qualified HVAC Technician for  
assistance.  
 
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  
.............................................................................................  
Two fresh 1.5 Volt (AA) size alkaline batteries  
.............................................................................................  
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NOTICE! Do not disconnect the wires  
from the existing thermostat before  
reading these instructions. The wires  
must be labeled prior to removal to  
ensure proper reconnection.  
 
7
 
8
uninstalling the existing unit  
1. Turn the system power OFF from the existing  
thermostat. Turn the power to the HVAC system OFF  
at the main power panel or at the furnace.  
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.)  
 
9
if your existing  
label the wire  
thermostat is marked...  
with this sticker:  
R H  
RH / R / VR / 4  
RC / VC  
24 Volt  
RH  
C R  
24 Volt cool  
RC  
Y
Y / C* / M  
W / H  
air conditioning  
compressor  
Y
W
heating  
fan  
W
G
G / F  
G
O
O
B
reversing valve  
cool  
O
B
reversing valve  
heat  
B
 
10  
uninstalling the existing unit, cont.  
4. 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, so wire color should be ignored.  
refer to the existing terminal designation for  
proper identication.  
*If wires marked Y & C are both present, C may be a  
Common wire and should not be used. If you have a wire  
marked C, do not connect it to any terminal. This wire is  
used only for non-battery powered thermostats.  
5. 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.  
 
11  
Thermostat  
Top Cover  
 
12  
installing the thermostat  
INSTALLING THE THERMOSTAT  
1. Remove the top cover from the new thermostat by  
pulling the two halves apart.  
 
1ꢀ  
14  
installing the thermostat, cont.  
INSTALLING THE WALL PLATE  
2. Position the new thermostat on the wall and pull the  
labeled wires through the opening.  
3. If the existing holes do not match those on the Hunter  
wall plate, or if there are no existing holes, level the  
thermostat and mark the wall for two holes.  
4. Remove the thermostat and drill two 3/16” holes where  
marked.  
5. Tap the plastic anchors into the holes until they are flush  
with the wall.  
6. Reposition the thermostat on the wall, pulling the  
wires through the opening. Insert the mounting screws  
through the mounting holes and into the anchors. Verify  
that the thermostat is visually level and securely tighten  
both screws.  
 
1ꢁ  
O
Y
G W RC RH  
 
1ꢂ  
installing the thermostat, cont.  
CONNECTING THE WIRES  
1. Loosen, but do not remove, the terminal screws.  
note: a jumper wire has been provided, connecting the  
rc and rh terminals for systems that do not provide  
both an rh and rc wire. if you have both an rh and rc  
wire, remove this jumper. if you do not have both an rh  
and rc wire, leave the jumper in place.  
2. Match and connect the wires from the wall to the  
terminals as shown. Wires should be inserted behind  
the black terminal shields. Tighten each screw after  
the connection has been made.  
(The ends of any extra wires should be wrapped in electrical tape  
and carefully pushed back into the wall.)  
3. Push any excess wire length back into the wall to  
prevent interference.  
 
17  
HE/HG Switch  
HP STD  
HP/STD Switch  
 
18  
installing the thermostat, cont.  
ATTACHING THE THERMOSTAT  
1. Locate the HE/HG switch on the wall plate. Set the  
switch to HG for a gas furnace or oil burner. Set the  
switch to HE for electric furnaces.  
(The switch has no effect when the system is set to cooling mode.)  
2. Locate the HP/STD switch on the wall plate. Set the  
switch to HP for Single-stage heat pump systems. Set  
the switch to STD for conventional systems.  
 
19  
 
20  
installing the thermostat, cont.  
3. Insert two fresh AA alkaline batteries.  
4. Align the top cover with the the wall plate, and snap  
the two halves together.  
5. Restore power at the electrical panel or furnace.  
 
21  
Set Temperature  
Slider  
0
9
0
8
0
7
0
6
0
5
Fan  
Switch  
System  
Switch  
COOL OFF HEAT  
AUTO  
ON  
SYSTEM  
 
22  
operation  
1. Set the Set Temperature slider to the desired  
temperature.  
2. The System Switch determines the operating mode of  
the thermostat. Select Cool, Off, or Heat.  
3. The Fan Switch should normally be located in the  
Auto position. To run the fan continuously, slide the  
Fan Switch to the On position.  
note: in  
, the fan will be turned on along with  
Auto  
normal operation of your system. in a normal gas or oil  
furnace, the fan will be turned on by your furnace after  
its warm-up delay.  
 
2ꢀ  
0
9
0
Thermometer  
8
0
7
0
6
0
5
Battery Indicator  
 
24  
indicators and adustment  
1. The Thermometer indicates the room temperature.  
2. The Battery Indicator displays two battery  
conditions. The first warning is the Weak Battery  
Warning, indicated by the Battery Indicator flashing  
once approximately every three seconds. When  
this warning appears, install two fresh AA alkaline  
batteries at your earliest convenience.  
3. The second warning is the Shut-down Indicator,  
indicated by the Battery Indicator flashing  
approximately twice every second. When this warning  
appears, the thermostat is shut down and will turn  
your system OFF. Your system will remain shut-off until  
you install two fresh AA alkaline batteries.  
 
2ꢁ  
Span Adjust  
SPAN  
SPAN  
 
2ꢂ  
indicators and adjustments, cont.  
Your thermostat is preset to cycle your system off and  
on at 1oF above and below the Set Temperature. For  
maximum system efficiency and a sustained comfortable  
temperature your system should cycle 3 - 5 times per  
hour. If your system is cycling either too often or not often  
enough, then use a small Phillips-head screwdriver and  
the Span Adjust to change the cycle time.  
1. Remove the top cover from the thermostat.  
2. To make your system run LONGER, turn the Span  
Adjust clockwise.  
3. To make your system run SHORTER, turn the Span  
Adjust counter clockwise.  
4. Reattach the top cover to the thermostat.  
o
o
note: the span range is 0.6 f - 3 f. the span setting  
remains the same in both the heat and cool modes and  
can be changed regardless of what position the system  
switch is in.  
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1. My heating or cooling will not turn on or off.  
1 a. Check the HE/HG switch to ensure it is set to the correct position.  
1 b. Wait. There may be as much as a 4-minute delay before the system  
turns on or off to protect the compressor.  
1 c. Check the circuit breakers and switches to ensure there is enough  
power to the system.  
1 d. Replace the batteries with fresh AA alkaline batteries.  
1 e. If applicable, make sure the furnace blower door is closed properly.  
1 f. If your system has 4 wires, ensure the jumper wire is installed  
between the RC and RH terminals.  
.............................................................................................  
2. My system continues to operate when the thermostat  
is in the off position.  
2 a. Replace unit.  
 
28  
4-wire Heat/Cool System  
Jumper  
Rc  
G
Rh  
Y
W
X
Cool  
Contactor  
Fan  
Relay  
Heat/Cool  
24V Supply  
Heat Relay  
or Valve  
5-wire Heat/Cool System  
Rc  
G
Rh  
Y
W
Cool  
Contactor  
Fan  
Relay  
Heat Relay  
or Valve  
Cool  
24V Supply  
Heat  
24V Supply  
 
ꢀ0  
Wiring diagrams  
Single-stage Heat Pump System  
Jumper  
Rc Rh  
O
B
Y
G
W
Cool  
Mode  
Heat  
Mode  
X
X
OR  
Fan  
Relay  
Compressor  
Contactor  
Reversing  
Valve  
Heat/Cool  
24V Supply  
2-wire Heat Only System  
Jumper  
Rc  
Rh  
W
X
Heat 24V or  
Millivolt Supply  
Heat Relay  
or Valve  
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Wiring diagrams, cont.  
3-wire Heat Only System  
Jumper  
Rc  
G
Rh  
W
X
Heat 24V  
Supply  
Heat Relay  
or Valve  
Fan  
Relay  
3-wire Cool Only System  
Jumper  
Rc  
G
Rh  
Y
X
Cool  
Contacter  
Cool 24V  
Supply  
Fan  
Relay  
 
ꢀ2  
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© 2007 Hunter Fan Company  

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