Hunter Fan Thermostat 42999 44050S User Manual

®
SINCE  
1 8 8 6  
42999/44050  
OwnerÕs Manual  
 
We are pleased you have selected one of our broad line of home comfort products. Our  
products are manufactured to high quality standards and are designed for years of service.  
We hope you will be satisfied and thank you for buying a Hunter product.  
Table Of Contents  
Installation  
Features  
6
8
Remove Old Thermostat  
Labeling Wires  
10  
14  
14  
Connecting Wires and Mounting Thermostat  
System Selector Switches  
Operation  
Start-Up  
16  
16  
17  
18  
19  
19  
19  
20  
22  
Reviewing Current Temperature Setting  
Setting New Temperature  
Filter Monitor  
Resetting Filter Counter To Zero  
Temperature Span  
Backlighting  
Trouble Shooting  
Typical Wiring Diagrams  
 
Read This Before Installing Thermostat  
IMPORTANT  
OPERATION  
Your Hunter Thermostat is designed to  
4operate with most gas, oil, electric or 2-wire  
hot water heating, and air conditioning systems  
that have 24-volt or millivolt control.  
Read the entire installation section of this  
1Owner’s Manual thoroughly before you begin  
to install or operate your Hunter Thermostat.  
• Remove the mylar label from the display  
window.  
This Hunter Thermostat will not control multi-  
stage heating or cooling systems, 110/220 V  
systems, or 3 wire zone systems.  
INSTALLATION  
All installation is normally performed at your  
2thermostat.  
COMPRESSOR PROTECTION  
The thermostat provides a 4-minute delay  
5after shutting off the compressor before it  
can be restarted. This feature will prevent  
damage to your air conditioner compressor  
caused by rapid cycling. It does not provide a  
delay when there are power outages.  
PROGRAMMING  
You can practice programming before  
3installing your thermostat by inserting and  
connecting the batteries and following the  
instructions on page 14. This can be done while  
you relax in your favorite chair and is a very  
good way to familiarize yourself with all the  
functions of your Hunter Thermostat.  
 
TEMPERATURE RANGE  
BATTERY WARNING  
Your thermostat can be programmed between  
640°F and 95°F (5°C and 35°C). However, it will  
display room temperatures from 32°F to 99°F (0°C  
to 37°C).  
When the batteries are low the “LOW BATT”  
8indicator on the display will flash. When this  
happens, install new batteries immediately.  
Once the “LOW BATT” indicator appears, the  
thermostat will continue to operate for  
approximately 30 days. (Only alkaline batteries  
should be used in your thermostat.  
Rechargeable batteries have different properties  
which may cause the thermostat to not operate  
properly. Do not use old batteries.) The batteries  
should last one year.  
POWER FAILURE  
Whenever the main power is interrupted or  
7fails, the battery power retains the programs  
and current time.  
CAUTION: The batteries are the only source  
of power used to operate your system. If you  
do not replace the batteries, the display will  
dim and your heating and cooling system will  
stop operation.  
NOTE: If you plan to be away from the  
premises over 30 days, we recommend that  
you replace the old batteries with new  
alkaline batteries prior to leaving.  
 
6-7  
Features (Model 42999)  
TEMP  
SET TEMP  
FILTER  
For raising  
C
temperature.  
LO BAT  
HOLD  
69  
To reset filter  
counter back  
to zero.  
HEAT COOL  
Easy-To-Read  
Digital Display  
Liquid crystal  
display shows  
room  
For lowering  
temperature.  
FILTER  
Function  
Switch  
temperature, set  
temperature,  
filter indicator,  
low battery  
indicator, heat  
and cool system  
indicator.  
For turning  
on heating  
and cooling  
system.  
HEAT OFF COOL  
FAN  
AUTO  
RESET  
Fan ON  
and  
Unique Filter  
Monitor  
AUTO  
Selector  
Switch.  
Automatically  
reminds you to  
clean or  
replace your  
heating and air  
conditioning  
filters.  
Reset Button  
For resetting  
thermostat.  
Easy access battery compartment.  
 
Features (Model 44050)  
TEMP  
SET TEMP  
FILTER  
For raising  
C
temperature.  
LO BAT  
HOLD  
69  
Display  
backlight for  
viewing in  
the dark.  
HEAT COOL  
Easy-To-Read  
Digital Display  
Liquid crystal  
display shows  
room  
For lowering  
temperature.  
LIGHT  
Function  
Switch  
temperature, set  
temperature,  
filter indicator,  
low battery  
indicator, heat  
and cool system  
indicator.  
For turning  
on heating  
and cooling  
system.  
HEAT OFF COOL  
FAN  
AUTO  
RESET  
Fan ON  
and AUTO  
Selector  
Switch.  
FILTER  
Unique Filter  
Monitor  
Automatically  
reminds you to  
clean or  
replace your  
heating and air  
conditioning  
filters.  
Reset Button  
For resetting  
thermostat.  
To reset filter  
counter back  
to zero.  
Easy access battery compartment.  
 
Installation  
8-9  
What You Need  
This thermostat comes with two #8 slotted screws and two wall anchors for mounting. To  
install your unit, you should have the following tools and materials.  
Slotted screwdriver  
Hammer  
Electric drill and 3/16" bit  
Two 1.5V (AA) Size Alkaline batteries  
Remove Old Thermostat  
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 first be removed. Once 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.  
(See Figure 1).  
 
TYPICAL HOME THERMOSTATS  
FIGURE 1  
Wall Mounting Plate  
Thermostat  
Cover  
Thermostat  
Wall Mounting Plate  
Cover  
 
Installation  
Label Wires  
10-11  
Each wire coming from the wall to the existing thermostat is connected to a terminal point on  
that thermostat. Each of these terminal points is usually marked with a code letter as shown in  
Table A on page 9.  
The number of wires in your system can be as few as two (for heat only systems), as many as  
eight, or any number in between. If you follow the labeling procedures correctly, you do not  
have to be concerned about how many wires there are.  
There is often no terminal marking on the existing thermostat of two wire, heat only systems.  
Do not worry, just connect either of the wires to the RH terminal, then connect the other wire  
to the W terminal to complete the circuit.  
IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPLY THE SELF-ADHESIVE LABELS  
PROVIDED TO THE WIRE AS SHOWN IN TABLE A ON PAGE 11. (For example, attach the  
label marked W to the wire which goes to the W or H terminal on your existing thermostat.)  
IGNORE THE COLOR OF THE WIRES since these do not always comply with the standard.  
After labeling wires, disconnect them from the existing  
thermostat terminals.  
Y
G
Remove existing wallplate. To make sure wires do not fall back  
W
RH  
RC  
into wall opening, you may want to tape them to the wall.  
If hole in wall is larger than necessary for wires, seal this hole so  
that no hot or cold air can enter the back of the thermostat  
from the wall. This air could cause a false thermostat reading.  
 
Wire Labeling  
If the code letter on your  
existing thermostat is  
and connect to thermostat  
Terminal shown  
then mark wire  
with label shown  
RH, R,  
VR or 4  
24 Volt  
This table will help you  
match the labels to the  
wires so you can attach  
them to your Hunter  
Thermostat.  
RH  
RED  
RC, VC  
24 Volt Cool  
RC  
RC  
BLUE  
G or F  
Fan  
G
NOTE: Follow the labels  
when connecting wires  
since many installations  
do not follow color  
GREEN  
Y, C or M  
(See Note)  
coding of wires.  
Y
Air Conditioning  
YELLOW  
W or H  
Heating  
W
WHITE  
TABLE A  
 
Installation  
12-13  
Wire Labeling (Continued)  
NOTE: If your thermostat has one wire marked R or RH (4-wire system), then leave  
the jumper wire between the RH and RC terminals. Otherwise, if you have separate  
RH and RC wires (5-wire system), then remove the jumper wire between the RH and  
RC terminals.  
NOTE: Do not connect a Common” wire (sometimes labelled C) to any terminal on  
this thermostat. Tape up the wire and do not use.  
 
Mount Wallplate and Thermostat  
Snap open the wallplate from your thermostat by pressing the release tab on the bottom of  
the thermostat.  
Position wallplate on wall and pull existing wires through large opening. Then level for  
appearance. Mark holes for plastic anchors provided if existing holes do not line up with  
Hunter Thermostat holes.  
Drill holes with 3/16" bit and gently tap anchors into the holes until flush with wall.  
Reposition wallplate to wall, pulling wires through large opening. Insert mounting screws  
provided into wall anchor and tighten. (See Figure 2.)  
FIGURE 2  
 
Installation  
14-15  
Selector Switches  
The heating system selector and the F°/C° selector switches are located on the Printed  
Circuit Board.  
Heating system selector  
The heating system selector is a switch on the Printed Circuit Board on the inside of the  
thermostat. The switch is at “HG” position. Leave it in this position if you have a gas  
furnace or an oil burner.  
If you have an electric furnace, test to see whether the heat and fan come on as  
expected. Leave the switch in the “HG” position. If the fan does not come on when the  
thermostat calls for heat, change the switch position to “HE.”  
The system selector has no effect in the cooling mode.  
NOTE: HG” position is for gas and most other systems. “HE” position is for certain  
electric systems having a fan relay.  
/C° selector (Fahrenheit/Centigrade)  
Your thermostat is set for F° mode from the factory. In order to  
change to C° mode, slide the switch to C° and press reset  
HE  
HG  
button on the front of the thermostat with a paper clip. The reset  
button is located near the display.  
C
F
NOTE: Unless reset button is pressed, the thermostat will  
not change the mode.  
Connect Wires and Mount Thermostat Cover to Wall Plate  
Match and connect the labeled wires to the appropriate coded terminal screws on the  
mounting plate. (See Figure 3, 4.) Ignore any wires which may be present, but which were  
not connected to the old thermostat.  
 
Be sure to tighten the terminal screws securely, otherwise a loose wire could cause operational  
problems with your system or thermostat.  
Push excess wire back into hole to prevent interference with mounting of the thermostat cover.  
Make sure the Function Switch is set at OFF, and the FAN-AUTO Switch is in AUTO.  
Insert the bottom tab on the thermostat body into the slot at the bottom of the wallplate.  
Press top of the thermostat body to snap it into the wallplate. (NOTE: Do not force the  
thermostat onto the wallplate, as the terminal pins may be damaged. If it does not  
snap properly, the thermostat may not work.)  
Insert the two AA size batteries, observing the polarity  
marked on the unit.  
Switch on the main power. Press the reset button.  
(See Figure 5.)  
The LCD display indicates the current room temperature  
HEAT OFF COOL  
AUTO FAN  
RESET  
of your house. If it shows random numbers or partial  
digits, press the reset button once again.  
The installation is now complete. Continue reading  
Owner’s Manual for complete operating instructions.  
RH  
G
W
Y
RC RH  
FIGURE 5  
FIGURE 4  
FIGURE 3  
 
Programming  
Start-Up  
16-17  
When you first install two AA size batteries, as directed in the installation instructions, press  
the Reset Button.  
The thermostat is preset at the factory to 68°F (20°C) for heat and 78°F (25°C) for cool.  
Room temperature is displayed.  
Your thermostat batteries will prevent memory loss and avoid reprogramming. Replace  
batteries as soon as low battery indicator comes on the display.  
A built-in timer prevents damage to your air conditioner compressor, caused by rapid cycling,  
by providing a delay of 4 minutes before it will restart.  
The thermostat will display room temperature from 32°F to 99°F. (0°C to 37°C).  
The temperature can be set from 40°F to 95°F. (5°C to 35°C).  
Reviewing Current Temperature Setting  
TEMP  
69° is current room temperature.  
F
SET TEMP  
FILTER  
LO BAT  
HOLD  
69  
HEAT COOL  
Press For 2  
Seconds Or  
Less  
TEMP  
68° indicates the current setting  
of the thermostat.  
If pressed for more than 2  
seconds, you will adjust the set-  
ting as explained below.  
F
SET TEMP  
FILTER  
LO BAT  
HOLD  
or  
68  
HEAT COOL  
 
Setting New Temperature  
In this example we are raising the current set temperature of 68°F to a new setting of 72°F.  
Press  
And  
Hold  
TEMP  
Press arrow to display current  
temperature setting.  
F
SET TEMP  
FILTER  
LO BAT  
HOLD  
68°F is the current temperature  
setting.  
68  
HEAT COOL  
TEMP  
After 3 seconds, “SET” starts  
flashing and temperature digits  
will increase.  
F
SET TEMP  
FILTER  
LO BAT  
HOLD  
72  
Release at 72°F.  
HEAT COOL  
TEMP  
The display returns to current  
room temperature in 5 seconds.  
HEAT” will appear indicating  
heat has turned on.  
F
SET TEMP  
FILTER  
LO BAT  
HOLD  
69  
HEAT COOL  
 
Operations  
18-19  
Filter Monitor  
The Hunter Digital Thermostat measures and stores the amount of time the heating or air  
conditioning system operated.  
After 500 hours of usage, the word “FILTER” will appear and flash on the display, reminding  
you to check or replace your system filter.  
TEMP  
SET TEMP  
c
FILTER  
LO BAT  
HOLD  
69  
HEAT COOL  
The word FILTER” will continue flashing until the filter counter is reset back to zero.  
TEMP  
SET TEMP  
c
FILTER  
LO BAT  
HOLD  
69  
HEAT COOL  
 
To Reset Filter Counter To Zero  
TEMP  
SET TEMP  
FILTER  
LO BAT  
After 5 seconds, when the filter  
counter is reset, the “FILTER”  
disappears from the display.  
c
Press  
FILTER  
69  
HOLD  
HEAT COOL  
Note: Filter button works only when “FILTER” is displayed on the display. If Filter button is  
pressed when FILTER” is not displayed, the internal counter will not reset.  
Temperature Span  
Your thermostat is pre-programmed at the  
factory to cycle when the temperature rises  
1° above or 1° below the temperature  
setting. It cannot be changed.  
Backlighting (Model 44050 only)  
Press  
The display will remain backlit for  
LIGHT  
approximately five (5) seconds. If another  
button is pushed, the five second timer will  
reset, and the light will turn off five seconds  
after the last button is pressed.  
Your thermostat comes with an electrolumi-  
nescent lamp for easy viewing of the display  
in the dark. To activate press the “light”  
button between the up and down arrow keys.  
 
Troubleshooting  
20-21  
Solution  
Problem  
SCRAMBLED OR DOUBLE DISPLAY  
(numbers over numbers  
1. Remove clear mylar sticker.  
NO DISPLAY  
1. Check battery connections and batteries.  
2. Press reset button once with a small pin  
and hold in for two seconds.  
ENTIRE DISPLAY DIMS  
1. Replace batteries.  
AUTO/FAN DOES NOT COME ON  
1. Move HG/HE system selector to opposite  
position.  
HEATING OR COOLING DOES NOT GO  
ON OR OFF  
1. Check that function switch is in correct  
position (“HEAT” or “COOL”).  
2. There may be as much as 20 seconds  
delay before the system turns on - wait  
and check.  
3. Check your circuit breakers and switches  
to ensure there is power to the system.  
4. Replace batteries.  
5. Make sure your furnace blower door is  
closed properly.  
6. If your system only uses 4-wires, be sure  
the jumper wire is installed between the  
RC and RH terminals.  
 
ERRATIC DISPLAY  
1. Press the reset button once with a small  
pin and hold in for two seconds. Then  
reprogram.  
IF UNIT CONTINUES TO OPERATE IN OFF  
POSITION  
1. Replace unit.  
THERMOSTAT READS , HI, LO  
PERMANENTLY  
1. Replace unit.  
If you experience any other problems, call 1-901-745-9222 from 8AM to 5PM Central  
Standard time for technical assistance.  
 
Wiring Diagrams  
22-23  
4-wire Heat/Cool System  
THERMOSTAT  
Jumper  
RC  
RH  
G
W
Y
Heat/Cool  
Transformer  
Fan  
Heat Relay  
or Valve  
Cool  
Contactor  
Relay  
5-wire Heat/Cool System  
THERMOSTAT  
RC  
RH  
G
W
Y
Cool  
Heat  
Fan  
Heat Relay  
or Valve  
Cool  
Transformer  
Transformer  
Relay  
Contactor  
 
2-wire Heat Only  
3-wire Heat Only  
3-wire Cool Only  
THERMOSTAT  
RC  
RC  
RC  
RH  
G
W
Y
Y
Y
Heat  
Heat Relay  
or Valve  
Transformer  
THERMOSTAT  
RH  
G
W
Heat  
Fan  
Heat Relay  
or Valve  
Transformer  
Relay  
THERMOSTAT  
RH  
G
W
Cool  
Transformer  
Fan  
Cool  
Contactor  
Relay  
 

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