Hunter 40120 Support Question
Hunter 40120 Support Question
Find answers below for this question about Hunter 40120.Need a Hunter 40120 manual? We have 3 online manuals for this item!
Question posted by plittledeb on January 17th, 2013
How To Install With 2 Wires Only
i have gas/electric furnace. but only have a 2 wire hook up on my old thermostat. i have heat only. can i install a hunter 40120 thermostate 2 it? please send wiring diagram if this is possible
Current Answers
Related Hunter 40120 Manual Pages
Owner's Manual - Page 1
Electronic/Mechanical Thermostat
installation and operation manual
Model 40120
1
44018-01 04-01-2008
Owner's Manual - Page 3
Table of Contents
Important Information 5 Tools 6 Uninstalling the Existing Unit 9 Installing the Thermostat 12 Installing the wall plate 14
connecting the wires 15 attaching the thermostat 17 Operation 20 Indicators & Adjustments 22 Troubleshooting 25 Wiring Diagrams 27
3
Owner's Manual - Page 4
Your new Hunter thermostat will provide years of reliable service and year-round energy savings. Thank you for complete operation instructions.
4 Please read this manual before beginning installation and save this booklet for choosing a Hunter thermostat.
Electronic/Mechanical Thermostat
Model 40120
Congratulations!
Owner's Manual - Page 5
...
Oil - Fired Boilers Gas - important information This thermostat is not designed for 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.
5 Standing Pilot Gas - Electronic Ignition
Gas - Fired Furnace
Electric Furnace
This thermostat is designed to work...
Owner's Manual - Page 6
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
6
Owner's Manual - Page 7
The wires must be labeled prior to removal to ensure proper reconnection.
7 NOTICE! Do not disconnect the wires from the existing thermostat before reading these instructions.
Owner's Manual - Page 9
... panel or at the furnace.
2. Locate, but do not disconnect the wires.
(If wires are not visible, they may have multiple covers, screws or other locking devices that open to expose the wires and mounting screws.)
9 uninstalling the existing unit 1. Remove the existing thermostat cover to access the wires from the existing
thermostat. Turn the power to...
Owner's Manual - Page 10
If your existing thermostat is marked... RH / r / vr / 4 w / h g / f
label the wire with this sticker:
24 Volt RH
heating W
fan G
G W RH
* See page 27 for complete wiring diagram.
10
Owner's Manual - Page 11
... C is used . Refer to the wall as you have a wire marked C, do not always comply with standards, so wire color should not be ignored. This wire is present, C may want to secure the wires to the existing terminal designation for non-battery powered thermostats.
5. uninstalling the existing unit, cont.
4. Using the provided stickers, label each...
Owner's Manual - Page 12
Remove the new thermostat from the back plate by pulling the two halves apart. Wall Plate
Thermostat 12 installing the thermostat INSTALLING THE THERMOSTAT
1.
Owner's Manual - Page 14
...wires through the mounting holes and into the holes until they are no existing holes, level the wall plate and mark the wall for two holes.
4. INSTALLING THE WALL PLATE
2. Verify that the thermostat..." holes where marked.
5. installing the thermostat, cont. Insert the mounting screws through the opening . If the existing holes do not match those on the Hunter wall plate, or if there...
Owner's Manual - Page 16
... shields. installing the thermostat, cont. Loosen, but do not remove, the terminal screws.
2. Tighten each screw after the connection has been made.
(The ends of any excess wire length back into the wall.)
3. Match and connect the wires from the wall to prevent interference.
16 Push any extra wires should be wrapped in electrical tape and...
Owner's Manual - Page 18
... the wall plate,
and snap the two halves together. 7. installing the thermostat, cont. Insert two fresh AA alkaline batteries. 6. Restore power at the electrical panel or
furnace.
18 Set the switch to HE for a gas furnace or oil burner. ATTACHING THE THERMOSTAT
4. Set the switch to HG for electric furnaces.
5. Locate the HE/HG switch on the back of...
Owner's Manual - Page 21
... its warm-up delay.
21 To run the fan continuously, slide the Fan Switch to the desired
temperature. 2. In a normal gas or oil furnace, the fan will be turned on by your system. Note: In Auto , The fan will be located in
the Auto position. The Fan Switch should ...
Owner's Manual - Page 22
... the Battery Indicator flashing approximately twice every second. When this warning appears, install two fresh AA alkaline batteries at your system OFF. When this warning appears, the thermostat is the Shut-down and will remain shut-off until you install two fresh AA alkaline batteries.
22 The second warning is shut down Indicator...
Owner's Manual - Page 27
wiring diagrams
2-w ire HeatOnlySystem
Rh W
Heat24V or
HeatRelay
M illivoltSupply orValve
3-w ire HeatOnlySystem
G Rh W
Fan
Heat24V
Relay Supply
HeatRelay orValve
27
Owner's Manual - Page 10
If your existing thermostat is marked...
RH / r / vr / 4 w / h g / f
label the wire with this sticker:
24 Volt RH
heating W
fan G
G W RH
* Vea la página 27 para el digrama eléctrico completo
10
Owner's Manual - Page 27
wiring diagrams
2-wire Heat Only System
Rh W
Heat 24V or
Heat Relay
Millivolt Supply or Valve
3-wire Heat Only System
G Rh W
Fan
Heat 24V
Relay Supply
Heat Relay or Valve
27
Owner's Manual - Page 6
les outils This thermostat includes two #8 slotted screws and
two wall anchors for mounting. To install your new thermostat, you will need the following supplies:
Tournevis à tête plate
Petit tournevis Phillips
Marteau
Perceuse électrique et mèche de 3/16
Deux batteries alcalines de 1,5 Volts (AA
6
Owner's Manual - Page 27
wiring diagrams
2-wire Heat Only System
Rh W
Heat 24V or
Heat Relay
Millivolt Supply or Valve
3-wire Heat Only System
G Rh W
Fan
Heat 24V
Relay Supply
Heat Relay or Valve
27
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