Hunter Fan 40120 User Manual

Download

Electronic/Mechanical

Thermostat

installation and

operation manual

Model 40120

44018-01 04-01-2008

For assistance with wiring or operation, our Technical Support Group is available from 8 am to 5 pm CST. they may be reached toll-free at 1-888-830-1326.

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

Electronic/Mechanical

Thermostat

Model 40120

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.

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

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 qualied 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.

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.)

If your existing

thermostat is marked...

label the wire

with this sticker:

RH / R / VR / 4

W / H

G / F

24 Volt

heating

fan

* See page 27 for complete wiring diagram.

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

qualied 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 identication.

*If a wire marked C is 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.

INSTALLING THE THERMOSTAT

1. Remove the new thermostat from the back plate by pulling the two halves apart.

Wall Plate

Thermostat

INSTALLING THE THERMOSTAT, CONT.

INSTALLING THE WALL PLATE

2. Position the new wall plate 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 wall plate and mark the wall for two holes.

4. Remove the wall plate and drill two 3/16” holes where marked.

5. Tap the plastic anchors into the holes until they

are ush with the wall.

6. Reposition the wall plate 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.

INSTALLING THE THERMOSTAT, CONT.

CONNECTING THE WIRES

1. Loosen, but do not remove, the terminal screws.

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.

HE/HG Switch

INSTALLING THE THERMOSTAT, CONT.

ATTACHING THE THERMOSTAT

4. Locate the HE/HG s w i t c H on the back of the thermostat. Set the switch to HG for a gas furnace or oil burner. Set the switch to HE for electric furnaces.

5. Insert two fresh AA alkaline batteries.

6. Align the thermostat with the the wall plate, and snap the two halves together.

7. Restore power at the electrical panel or furnace.

System Switch

Thermometer

Set Temperature Slider

Fan Switch

SYSTEM

OFF HEAT

AUTO ON

90 8

70 60 50

Battery Indicator

OPERATION

1. Set the sE t tE m p E r a t u r E s l i d E r to the desired temperature.

2. The sy s t E m sw i t c H determines the operating mode of the thermostat. Select Of f or HE a t .

3. The fa n sw i t c H should normally be located in the au t O position. To run the fan continuously, slide the fa n sw i t c H to the On position.

Note: In 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.

, The fan will be turned on along with normal

au t O

INDICATORS AND ADUSTMENT

1. The tH E r m O m E t E r indicates the room temperature.

2. The Ba t t E r y in d i c a t O r displays two stages of

wE a k Ba t t E r y wa r n i n G , indicated by the Ba t t E r y in d i c a t O r ashing once approximately every

second. When this warning appears, install two fresh AA alkaline batteries at your earliest convenience.

3. The second warning is the sH u t -d O w n in d i c a t O r , indicated by the Ba t t E r y in d i c a t O r ashing 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.

Span Adjust

SPAN

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 efciency 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 to turn the

sp a n ad j u s t left or right to change the cycle time.

1. Remove the thermostat from the wall plate.

2. To make your system run LONGER, turn the

sp a n ad j u s t clockwise.

3. To make your system run SHORTER, turn the

sp a n ad j u s t counter clockwise.

4. Reattach the thermostat to the wall plate.

Note: The Span range is 0.6oF - 3oF. 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.

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. Check the circuit breakers and switches to ensure there is

enough power to the system. 1 c. Replace the batteries with fresh AA alkaline batteries. 1 d. If applicable, make sure the furnace blower door is closed

properly.

......................................................................................

2. My system continues to operate when the thermostat is in the off position.

2 a. Replace unit.

TROUBLESHOOTING

Is there help on the web?

Yes. Visit http://www.hunterfan.com for more information.

....................................................................................

.........

Can’t I just call someone?

Sure. Our Technical Support Group is available from 8 am

to 5 pm CST. They may be reached toll-free at1-888-830-

1326.

WIRING DIAGRAMS

Heat 24V or Millivolt Supply

Heat Relay or Valve

2-wire Heat Only System

Heat 24V Supply

Heat Relay or Valve

3-wire Heat Only System

Fan Relay

Hunter Fan 40120 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual