Fan Switch; Troubleshooting; Operation; Wiring Diagrams - Hunter 47999B Owner's Manual

Wiring Diagrams
4-wire Heat/Cool System
5-wire Heat/Cool System
Wallplate
Jumper
Terminals
fan Heat Relay Cool Con- Heat/Cool
Relay or Valve tactor 24V Supply
2-wire Heat Only System
Wallplate
Terminals
no Jumper
fan Heat Relay Cool Heat 24V
Relay or Valve contactor Supply
3-wire Heat Only System
Wallplate
Jumper
Terminals
Heat Relay Heat 24V or Mil-
or Valve livolt Supply
3-wire Cool Only System
X - no Connection
Wallplate
Jumper
Terminals
fan Heat Relay Heat 24V
Relay or Valve Supply
Selector Switches
Wallplate
Jumper
Terminals
fan Cool con-
Relay tactor
In order for this thermostat to control your system, the system type
must be specified by the selector switches on the printed circuit
board inside the thermostat. There is also a selector switch for your
choice of fahrenheit or Celsius temperature display.
• heating System Selector (hG - hE switch)
The factory position for this switch is in the "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 after installation. If the fan operation is
normal, leave it in the "hG" position. If the Fan does not come
on within a minute of the thermostat calling 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.
• F° / C° selector (Fahrenheit / Celsius)
Your thermostat is set for f° mode from the factory. In order to
change to C° mode, slide the switch to C° and press the reset
button on front of the thermostat with a paper clip.
NOTE: Unless the reset button is pressed, the thermostat will
not change temperature mode.
Temperature Display
(SW4)
fan Option
(SW3)
figure 6
form no. 41497-01 Rev 08-04-2008

OPErATION

Start-up
The LCD will show the factory de-
fault display of 70°f (21°C) when
batteries are first installed, or after
the Reset button is pressed. The
temperature will update after a few
seconds.
System Selector Switch
The System Selector switch on the front of the
thermostat determines the operating mode
of the thermostat. You may select COOL,
OFF, hEAT.
NOTE: Anytime you install or remove the
thermostat from the wallplate, slide the System
Selector to the Off position to prevent the
possibility of a rapid system On-Off.

fan Switch

The fan switch should normally be located in
Cool 24V
the aUTO position. The fan will be turned on
Supply
along with 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. for electric heat and air conditioning op-
eration, the fan will turn on with the system.
To run the fan on continuously, slide the fan
switch to the On position.
Review Current Set Temperature
• Press either the up or down key for less than 1 second to see
the Set Temperature.
The factory default is 68°f (20°C) when started with the System
Switch Off or Heat, and 78° (26°C) when started with the System
Switch on Cool.
Setting new Temperature
• Press either the up or down key and hold
for longer than 1 second.
• The display will flash to show that you are
in Set Temperature mode, then you can
release the key.
• Press either up or down again to change
t o
d e s i r e d
S e t Te m -
p e r a t u r e .
H o l d t h e
key down
for over 2
seconds to
fast-advance the Set Temperature.
The display will return to the normal room
temperature after the keys have been released
for 3 seconds.
filter Monitor
Cool 24V
Supply
The thermostat counts the number of hours your system's filter has
been in use. To maximize your system's performance and energy
efficiency, change or clean your filter regularly.
When the total system run time for heat and cool reaches 400
hours, the Filter Change Indicator will flash as a reminder to check
your system's filter.
after changing or cleaning the sys-
tem filter, press and hold the Filter
key for 3 seconds. The display will
blink, and the counter will be reset
to zero.
note: Pressing the filter key at any
time for less than 3 seconds will
cause the filter Change Indicator
to appear on the LCD. This is only
to confirm key operation, and the counter is not affected unless the
key is held for greater than 3 seconds.
SPan Setting
Your thermostat is set at the factory to cycle at 1°f (0.5°C) above
and below the set temperature. (Span = 2) This setting has been
designed to provide a comfortable room temperature under most all
conditions. however, if you find your system cycling too fast or too
slow, then the Span can be adjusted to modify the cycle time.
• Press and hold BOTh for three seconds.
The display will flash, and SPAN will be
displayed on the LCD.
• Press to raise the Span to 3. This setting
INCrEASES the cycle time by allowing
your system to run LONGEr.
• Press to lower the Span to 1. This setting
DECrEASES the cycle time by causing
your system to run ShOrTEr.
The Span settings remain the same for both hEAT and COOL, and
can be changed in any System Switch position.
When batteries are installed in the thermostat, or the Reset key is
pressed, the Span is reset back to setting 2.
Low Battery Warning
Your thermostat has a two-stage
low battery warning system. When
the batteries are first detected to
be weak, the first stage low bat-
tery warning is indicated by battery
symbol flashing on the LCD display.
at your earliest convenience, you
need to replace the batteries with 2
new aa alkaline batteries.
When the batteries become too weak for normal operation, the
thermostat enters the second stage low battery warning which
shuts down the thermostat. In this
condition, "BATT" flashes alone on
the display, and the thermostat will
turn your system Off. Your system
will remain shut-off until the batteries
are replaced.
note: The thermostat will still keep
the current Set Temperature and
filter run time in memory until new batteries are installed. after
confirming that new batteries have been inserted, the thermostat
will return to normal operation.
Error Mode
If the thermostat is unable to control
your system due to an unexpected
battery problem, the thermostat will
enter Error Mode. In this condition,
the thermostat flashes "Er" on the
LCD display, and shuts off your
system.
To correct this problem, replace the
batteries with 2 new aa alkaline batteries, even if you have recently
replaced them. Next, use a paper clip to press the rESET button
next to the keypad. You will need to reprogram your thermostat and
confirm normal operation.
If Error Mode returns, please call Technical Support at 1-888-830-
1326 for further information.
auto Cut Off
Your thermostat will automatically cutoff in Heat mode if the room
temperature rises above 95°f (35°C). It will cutoff in Cool mode if
the room temperature drops below 45°f (7°C).
note that if your system has malfunctioned and no longer responds
y o u r to thermostat controls, the auto Cut-Off will have no effect.

TrOUBLEShOOTING

Problem
No Display.
Entire Display
Dims.
Auto Fan Does
not Turn On
Properly.
Heating or Cooling
Does Not Go On
or Off.
Erratic Display.
If unit continues to
operate in the Off
position.
Thermostat perma-
nently reads "HI",
"LO", or "Er".
If you experience any other problems, call 1-888-830-1326 from 8
aM to 5 PM Central Time for technical assistance.
ask Your Local Retailer for Other Quality Products from Hunter.
Air Purifiers
Solution
1. Check battery connections and bat-
teries.
2. Press rESET button with a small pin
and hold in for two seconds.
1. Replace Batteries.
1. Move hG/hE selector to correct posi-
tion.
1. Check that the function switch is
in the correct position ("hEAT" or
"COOL").
2. There may be as much as 4-minute
delay before the system turns On -
wait and check. (Compressor protec-
tion delay.)
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.
1. Press the reset button once with a
small pin and hold for two seconds.
Then reprogram.
1. Replace unit.
1. Replace unit.
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