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To rewire a Lennox 1.5 ton heat pump to straight cool with heat strip, you will need to reconfigure the thermostat wiring. Here are the steps:
Turn off the power to the heat pump unit.
Remove the thermostat cover to access the wiring terminals.
Take a picture of the current wiring configuration for future reference.
Remove the wires from the current terminals.
Connect the yellow wire to the Y terminal.
Connect the green wire to the G terminal.
Connect the white wire to the W2 terminal.
Connect the red wire to the R terminal.
Cap off the blue wire as it is not needed for this configuration.
Connect the orange wire to the W1 terminal.
Turn the power back on to the unit.
Test the system to ensure it is functioning correctly.
Please note that these steps are provided as a general guideline and may vary depending on the specific model of your thermostat and heat pump unit. Always refer to the manufacturer's instructions and consult a certified HVAC technician if you are unsure about any steps in the process.
If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems.
It will NOT work on multi-stage heat pump systems or
120/240 Volt systems. Call for help
The 44360 tstat can be used for single stage Heat pump use only. Unless you are in an environment that has greater than 40 degF outdoor temperatures year-round, you will want to return that tstat and obtain a multi-stage Heat Pump tstat. The standard system is 2-stage......1st stage is Heat Pump Compressor and 2nd stage is the backup electric heat.
Some thermostats have an extra terminal for an outdoor sensor which tries to anticipate the need for heating or cooling.
If this option is not present, you will have an unused terminal which may have a shorting link to a neighboring terminal.
Your installation instructions should mention this if the option is or is not included with your model.
Also, heat pump systems vary in the system control voltage and not all thermostats and systems are compatible with the more common split system thermostat.
Where are the wires connected in the heater ? They should be on R and W, if the W is on C you are shorting the heat anticipator in the thermostat. If the unit is wired right look for a spot where the wire is rubbed thru and touching the metal housing of the heater.
Red to the thermostat RH or thermostat RC terminal with a jumper wire between thermostat
RH and thermostat RC. Or Red to the thermostat R terminal which is shared with
both the heating and cooling. It has an internal jumper
built in to the sub-base. The red wire is the source hot wire from
the transformer. All other wires, except the common wire, controls
a specific relay or contactor that energizes the fan, heating, or cooling
depending on the selection. The following is the common wiring colors
but your system may not be common and different colors could have
been used.
Green to the thermostat G terminal. This is the color that controls the fan or the relay that control of the blower.
Yellow to the thermostat Y terminal. This is for control of the air conditioning.
White to the thermostat W terminal. This is for control of the heating.
Here is the link you can copy and paste in your browser: They also have every other model here to:
To get your heat going take the red wire hook it up to R on t-stat. Take white wire and hook it to W on t-stat. Take the green wire and hook it to G on t-stat. that will get you heat. Now I need for you to go to the unit where the wires hook to the furnace circuit board. I need to know what color wires go to what on the board. Might have to take off bottom panel. should only be using 4 or 5 wires. Get back with me and will complete the wiring. Be sure no wires at the t-stat are touching each other as this will short out transformer. So tape them off or cut flush so wire and insulation are flush. ken
If you don't have the wiring information, go here: http://www.hunterfanhq.com/tools/sales/hunter/preseason/images/owners/42710.pdf and see page 10.
If you're still having problems, go down to the furnace room and find the piece of equipment that you're wiring to. See where the wires came from, transpose that to the information above. Note: the wiring from the relay box should be 24 volts which is safe to handle. Wiring inside the relay box may be 110 or more volts which is not!!! Cut power before opening relay boxes.
As far as heater running continuously, be sure of your wiring. You may have the gas relay lead and the fan lead reversed. Determine if you've set the switch options for your type of heater correctly!!! Do you hear the relay clicking in and out at or near the room temp when you change the setpoint? If not, the unit may be defective.
Here is a link that will have wiring diagram it is for a similar model hunter. Also check your dip switch on the back of the stat to ensure it is set for gas (HG) or electric heat (HE) depending on your type of unit. Good Luck. Rule of thumb for most four wire systems is RED (power to stat) Yellow (Cooling) Green (Fan) White (heat)
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