Hunter Fan Thermostat 40020 User Manual

If the code letter on your  
existing thermostat is  
then mark wire  
with label shown  
and connect to thermostat  
Terminal shown  
6) On models 40035, 40060 and 40070 there  
is a heating system selector for either  
gas/oil systems or electric heat systems.  
For gas/oil heat systems, the jumper J1  
should remain inserted into the center and  
G/O” terminals. For electric heat  
systems, the jumper J1 should be inserted  
into the center and “E” terminals. Refer to  
the figure.  
7) Line up the front cover with the baseplate  
and carefully snap into place.  
8) Make sure that the Heat/Off/Cool  
system switch is in the OFF position  
before returning power.  
HUNTER LIMITED WARRANTY  
HUNTER  
The Hunter Fan Company warrants your  
Hunter thermostat to be free from defects in  
material and workmanship for a period of  
one year from the date of sale to the original  
user or consumer purchaser.  
If your Hunter thermostat malfunctions or  
fails within the warranty period because of a  
defect in material or workmanship, Hunter  
will replace it.  
RH, R,  
VR or 4  
24 Volt  
MECHANICAL THERMOSTAT  
INSTALLATION INSTRUCTIONS  
RH  
RED  
HEAT ONLY  
40020  
HEAT/COOL  
40035  
MODEL  
RC, VC  
24 Volt Cool  
RC  
40040  
40050  
NUMBERS  
40060  
40070  
BLUE  
RC  
G or F  
Fan  
READ THIS BEFORE INSTALLATION  
1) Read the entire installation section before  
beginning to install your HUNTER  
thermostat.  
2) All installation is done at your thermostat.  
There is no need for modifications to your  
furnace wiring or furnace.  
3) Your HUNTER thermostat is designed to  
operate with gas, oil, electric or forced hot  
water heating and air conditioning  
systems using 24 volt or millivolt controls  
and relay currents up to 1.0A. Such  
systems represent the great majority of  
residential central heating and air  
conditioning units in the United States.  
4) This thermostat is not designed to  
operate with heat pump systems, high  
voltage electric base-board, electric  
ceiling or multistage heating and cooling  
systems.  
G
This warranty is in lieu of all other  
express warranties. The duration of any  
implied warranty including but not limited  
to any implied warranty of merchantibility  
or fitness for a particular purpose, made  
in respect to your Hunter thermostat is  
limited to the period of the express  
warranty set forth above.  
GREEN  
Y, C or M  
Air Conditioning  
Y
Jumper Settings  
YELLOW  
J1  
J2  
W or H  
Heating  
W
WHITE  
This warranty is voided if your Hunter  
thermostat is not purchased and installed in  
the U.S.A. This warranty excludes and does  
not cover defects, malfunctions, or failures  
of your Hunter thermostat which were  
caused by repairs by persons not authorized  
by Hunter, mishandling, improper  
installation, modifications or damage to the  
Hunter thermostat while in your possession,  
or unreasonable use, including failure to  
provide reasonable and necessary  
E
G/O  
E
G/O  
4W  
4-Wire  
System  
4W  
5-Wire  
System  
NOTE: If your system has one wire  
marked R or RH (4-wire system), then  
leave the jumper J2 (4W) on the circuit  
board connected to both terminals.  
Otherwise, if you have separate RH and  
RC wires (5-wire system), then jumper J2  
should be placed on only one of the  
terminals. Refer to the figure.  
Gas/Oil  
Heat  
Electric  
Heat  
OPERATION  
1) Models 40020, 40040 and 40050 are heat  
only thermostats and have only the  
temperature selector. Models 40035,  
40060 and 40070 are heat/cool  
thermostats and have three switches: the  
temperature selector, the heat/off/cool  
system on the left side of the front cover,  
and the fan on/auto selector on the right  
side of the front cover.  
2) To select the desired temperature,  
position the selector at the temperature  
setting on the front cover.  
3) To select heat/off/cool or fan on/auto,  
slide the respective switch to the  
operation desired.  
THERMOSTAT REMOVAL  
maintenance.  
INSTALLATION  
1) Turn your present thermostat to the OFF  
position. Turn off the power to the  
heat/cooling system at the main power  
panel to avoid cycling of your system.  
2) Expose the wiring terminals on the  
existing thermostat, and they are generally  
on the baseplate. Before removing any  
wires determine the terminal markings for  
each wire. Then based on Table A apply  
the self-adhesive labels provided to the  
corresponding wires. (For example, attach  
the label marked “W” to the wire going to  
the W or H terminals on your present  
thermostat.)  
1) Gently remove the cover from the base  
of your HUNTER thermostat by pulling  
the base with one hand and the cover  
with your other hand.  
2) Position the baseplate against the wall  
and feed the wires through the two  
openings above the wire terminals.  
3) Using the screws and anchors provided,  
attach the baseplate securely to the wall.  
This thermostat does not have to be level.  
4) Connect wires to the proper terminals as  
shown in the table. Ignore any wires that  
may be present if they were not  
Return your product, along with proof of  
purchase, to Hunter Fan Co. Service  
Department, 2500 Frisco Ave., Memphis, TN  
38114. You will be responsible for all  
insurance and freight or other transportation  
charges to our factory. We will return your  
Hunter thermostat at Hunter’s expense. Your  
Hunter thermostat should be properly  
packed to avoid damage in transit as you  
are responsible for any such damage.  
The Heat  
Anticipator  
can be  
adjusted to  
increase or  
decrease  
the length  
of cycles  
In no event shall Hunter Fan Company be  
liable for consequential or incidental  
damages. Some states do not allow  
limitation on how long an implied  
warranty lasts or the exclusion or  
limitation of incidental or consequential  
damages so the above limitations or  
exclusions may not apply to you. This  
warranty gives you specific legal rights  
and you may also have other rights which  
vary from state to state.  
connected to your previous thermostat.  
The wires should not interfere with  
thermostat operation.  
NOTE: IGNORE THE COLOR OF THE  
WIRES since these do not always  
comply with the standard.  
3) Once all wires are labeled, disconnect the  
wires from the thermostat.  
5) Adjust the heat anticipator adjacent to the  
current draw of the heating system. You  
may find this information listed in the  
specifications in your furnace manual or  
on the relay or gas valve the thermostat is  
connected to. To increase the heat cycle  
time, slide the wiper in the direction of the  
arrow; and for shorter cycles just opposite  
the arrow.  
4) Remove existing wallplate.  
TECHNICAL ASSISTANCE  
5) If the hole in the wall is larger than  
necessary for wires, seal the hole up, so  
that no hot or cold air can enter the back  
of the thermostat. This air can cause a  
false reading from the thermostat.  
For technical assistance and support, call  
901-745-9222 between 8 a.m. and 5 p.m.  
Central Standard Time.  
HUNTER FAN COMPANY  
2500 FRISCO AVENUE  
M EM PHIS, TN 38114  
®
NOTE: For millivolt applications set to the  
highest setting then make adjustments  
1996 Hunter Fan Co. Form # 41259  
7/98  
 
per the above steps.  

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