Electronic/Mechanical Thermostat installation and operation manual Model 40170 42998-01 01-19-2007
Table of Contents Important Information.................................................. 5 Tools ............................................................................ 6 Uninstalling the Existing Unit ...................................... 9 Installing the Thermostat ........................................... 13 installing the wall plate .................................... 15 connecting the wires ........................................ 17 attaching the thermostat ..................................
Electronic/Mechanical Thermostat Model 40170 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 Electric Air Conditioning Single-stage Heat Pump Systems This thermostat is not designed for Multi-stage heat pump systems or 110/220 V baseboard heating systems.
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 .............................................................................................
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.
W RC Y G RC Y G W
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.
if your existing thermostat is marked...
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 qualified HVAC technician.) W G W RC Y Note: Wire colors do not always comply with standards, so wire color should be ignored. Refer to the existing terminal designation for proper identification. *If wires marked Y & C are both 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.
Top Cover Thermostat 12
installing the thermostat INSTALLING THE THERMOSTAT 1. Remove the top cover from the new thermostat by pulling the two halves apart.
installing the thermostat, cont. INSTALLING THE WALL PLATE 2. Position the new thermostat 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 thermostat and mark the wall for two holes. 4. Remove the thermostat and drill two 3/16” holes where marked. 5. Tap the plastic anchors into the holes until they are flush with the wall. 6.
B B O O G Y Y W G W RC RH 16 RC RH
installing the thermostat, cont. CONNECTING THE WIRES 1. Loosen, but do not remove, the terminal screws. Note: A jumper wire has been provided, connecting the RC and RH terminals for systems that do not provide both an RH and RC wire. If you have both an RH and RC wire, remove this jumper. If you do not have both an RH and RC wire, leave the jumper in place. 2. Match and connect the wires from the wall to the terminals as shown. Wires should be inserted behind the black terminal shields.
HE/HG Switch HE HG HP STD 18 HP/STD Switch
installing the thermostat, cont. ATTACHING THE THERMOSTAT 1. Locate the HE/HG switch on the wall plate. Set the switch to HG for a gas furnace or oil burner. Set the switch to HE for electric furnaces. (The switch has no effect when the system is set to cooling mode.) 2. Locate the HP/STD switch on the wall plate. Set the switch to HP for Single-stage heat pump systems. Set the switch to STD for conventional systems.
installing the thermostat, cont. 3. Insert two fresh AA alkaline batteries. 4. Align the top cover with the the wall plate, and snap the two halves together. 5. Restore power at the electrical panel or furnace.
Set Temperature Slider 90 80 70 60 50 System Switch Fan Switch AUTO ON COOL OFF HEAT SYSTEM 22
Operation 1. Set the Set Temperature slider to the desired temperature. 2. The System Switch determines the operating mode of the thermostat. Select Cool, Off, or Heat. 3. The Fan Switch should normally be located in the Auto position. To run the fan continuously, slide the Fan Switch to the On position. Note: In Auto , The fan will be turned on 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.
90 Thermometer 80 70 60 50 Battery Indicator 24
indicators and adustment 1. The Thermometer indicates the room temperature. 2. The Battery Indicator displays two battery conditions. The first warning is the Weak Battery Warning, indicated by the Battery Indicator flashing once approximately every three seconds. When this warning appears, install two fresh AA alkaline batteries at your earliest convenience. 3. The second warning is the Shut-down Indicator, indicated by the Battery Indicator flashing approximately twice every second.
Span Adjust SPAN SPAN 26
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 efficiency 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 and the Span Adjust to change the cycle time. 1. Remove the top cover from the thermostat. 2.
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. Wait. There may be as much as a 4-minute delay before the system turns on or off to protect the compressor. 1 c. Check the circuit breakers and switches to ensure there is enough power to the system. 1 d. Replace the batteries with fresh AA alkaline batteries. 1 e. If applicable, make sure the furnace blower door is closed properly. 1 f.
4-wire Heat/Cool System Jumper G Rc Rh Y W X Fan Relay Heat/Cool 24V Supply Cool Contactor Heat Relay or Valve 5-wire Heat/Cool System G Rc Rh Fan Relay Cool 24V Supply Heat 24V Supply 30 Y Cool Contactor W Heat Relay or Valve
wiring diagrams Single-stage Heat Pump System Jumper G Rc Rh X Fan Relay Heat/Cool 24V Supply O B W 2-wire Heat Only System Jumper Rc Y Cool Heat X Mode OR Mode Compressor Reversing Contactor Valve Rh W X Heat 24V or Millivolt Supply 31 Heat Relay or Valve
wiring diagrams, cont.
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