JUST RIGHT
®DIGITAL THERMOSTAT
Owners Manual | Model 42996 |
Congratulations!
Your new Hunter thermostat will provide years of reliable service. Using this digital thermostat will provide more uniform comfort in your home through the seasons. Thank you for buying a Hunter product!
Please read this manual for complete instructions on installing and operating your thermostat. If you require further assistance, call Hunter Technical Support at
Remove the mylar label from the display window.
IMPORTANT INFORMATION
1. This thermostat is designed to work on the following systems:
• | Gas - Standing Pilot | • | Oil - Fired Boilers |
• | Gas - Electronic Ignition | • | Oil - Fired Furnace |
• | Gas - Fired Boilers | • | Electric Furnace |
• | Gas - Milivolt Systems | • | Electric Air Conditioning |
This thermostat will NOT control
2. Temperature Range
This thermostat can be set between 45°F and 95°F (7°C and 35°C). However, it will display room temperatures from 30°F to 99°F (0°C and 37°C). “HI” will be displayed if the temperature is higher than 99°F (37°C), and “LO” will be displayed if the temperature is lower than 30°F (0°C).
This thermostat will automatically cutoff in Heat mode if the temperature rises above 95°F (35°C), and automatically cutoff in Cool mode if the temperature drops below 45°F (7°C).
3. Compressor Protection
This thermostat provides a 3.5 minute delay after shutting off the cooling system before it can be restarted. This feature will prevent damage to your compressor caused by rapid cycling. It does not prevent a rapid compressor restart due to short power outages.
4. Battery Warning
Two fresh AA alkaline batteries should provide well over one year of service. However, when the batteries become drained, the Low Battery Indicator will flash on the display. When this message occurs, install new alkaline batteries. You have approximately 1 minute to change the batteries and keep the ther- mostat’s settings. Once the batteries have become too low to ensure proper operation, your system will be turned Off, and the display will be cleared except for flashing Low Battery Indicator on the LCD display.
CAUTION: When only the battery icon flashes on the display, the ther- mostat is shut down, and your system will no longer operate. In this condition, there is no temperature control of your dwelling.
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 leav- ing.
5. Notes
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency en- ergy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
FEATURES
Filter Change Indicator: | LCD Display: |
| Front Doors: Covers | |
Flashes when filter | Shows Room |
| keys and batteries | |
needs to be checked. | Temperature, Set | Low Battery | when not used for | |
| Temperature, and | neat appearance. | ||
Reset: Press with a | Indicator: | |||
other feature | Open with one | |||
paper clip to reset the | Flashes when | |||
information as | finger from top or | |||
thermostat and return | batteries need | |||
required. | bottom. | |||
to | to be replaced. | |||
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INSTALLATION
What You Need
This thermostat includes two #8 slotted screws and two wall anchors for mounting. To install your thermostat, you should have the fol- lowing tools and materials.
•Slotted Screwdriver(s)
•Small Philips screwdriver
•Hammer
•Electric drill and 3/16” bit
•Two 1.5 V (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 ther- mostats will have screws or other locking devices that must first be removed. Once the 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
Wire Labeling
•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 below.
•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. 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
•After labeling wires, disconnect them from the existing thermostat ter- minals.
•Remove existing wallplate. To make sure wires do not fall back 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 with insulating material 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.
If the code letter | then mark the | and connect |
on your existing | wire with label | to thermostat |
thermostat is. . . | shown. . . | terminal shown |
RH, R, VR or 4 |
| x |
24 Volt |
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RC, VC |
| x |
24 Volt Cool |
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G or F |
| x |
Fan |
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Y, C or M |
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Air Conditioning |
| x |
Compressor |
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W or H |
| x |
Heating |
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Table A
NOTE: Do not connect a “Common” wire (sometimes labeled “C”) to any terminal on this thermostat.Tape up the wire and do not use.This wire provides electricity to
Mount Wallplate and Thermostat
•Remove the wallplate from your thermostat by pressing the release tab on the bottom of the thermostat. See Figure 2.
Figure 2
•Position wallplate on wall and pull existing wires through large opening. Then level for appearance. Mark holes for plastic anchors provided, if your existing holes do not line up with those on the wallplate.
•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 3.
Figure 3
NOTE:
If your thermostat has one wire marked R or Rh (2, 3, or
Connect Wires and Mount
Thermostat to Wallplate
•Match and connect the labeled wires to the appropriate coded terminal screws on the wallplate. (See Figure 4, 5.) Ignore any wires which may be present, but which were not connected to the old thermostat.
Figure 4 | Figure 5 |
•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 the hole to prevent interference when installing the thermostat to the wallplate.
•Make sure the System Switch is set to OFF, and the Fan Switch is set to AUTO.
•Insert the tabs on top of the thermostat body into the slots at the top of the wallplate. Press the bottom of the thermostat body into the snap on the bottom of the wallplate. Refer to Figure 2. (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 alkaline batteries, observing the polarity marked inside the battery compartment.
•Switch on the main power at the panel or furnace.
System |
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Switch: | Fan Switch: |
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Selector | Fan switch for | Filter Key: | Up and Down Keys: | Compartment: |
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switch for | Automatic or | Resets the | Keys for changing the | Front access allows |
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Heat, Cool, | Continuous fan | filter change | Temperature setting. | easy insertion |
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and Off. | operation. | counter to | Also used for adjust- | of two AA 1.5V |
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| zero. | ing the Span. | batteries. | Form No. |
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