To Operate Harmony II® control:

Choose either Central or Zone mode.

Central Mode: Heating and cooling to all zones. 1− Press Central button on control panel.

2− Choose either Heat or Cool or Auto button on control panel.

3− Choose either Fan Auto or Fan On button on control panel. The Fan switch on all thermostats will be inoperable. The fan is controlled at the control panel.

4− Set the zone 1 master thermostat at the same position (HEAT or COOL or AUTO) as the control panel. If your thermostat system does not have an auto−changeover selection, set the control panel in AUTO and the zone 1 thermostat in either HEAT or COOL. (Do not adjust other zone thermostats since they are non−functional in Central mode.)

5− Set thermostat to desired room temperature. Zone Mode: Heating and cooling to specific zones. 1− Press Zone button on control panel.

2− Choose either Heat or Cool or Auto button on control panel.

3− Choose either Fan Auto or Fan On button on control panel. The Fan switch on all thermostat will be inoperable. The fan is controlled at the control panel.

4− Set each zone thermostat at the same position (HEAT or COOL or AUTO) as the control panel. If your thermostats do not have an auto−changeover selection, set the control panel in AUTO and the zone thermostats in either HEAT or COOL.

5− Set thermostats to desired room temperature.

Harmony II® Control Panel

Press Zone for specific zones to

 

Press Central for all zones

 

 

receive conditioned air upon

 

to be conditioned at the

 

 

each zone’s need.

 

 

 

same time.

Press Cool to allow cooling only.

 

 

 

 

For Central mode, Zone 1 thermo-

 

 

 

 

stat should also be set at Cool. For

 

 

 

System Off button turns

Zone mode, all thermostats should

 

 

 

off Harmony II control.

also be set at Cool.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Press Auto to allow either cooling or heating, depending on the need. For Central mode, Zone 1 thermostat should also be set at Auto. For Zone mode, all thermostats should also be set at Auto. If your thermostats are not equipped with an Auto setting, place control panel in Auto and ther- mostats in either Heat or Cool.

Harmony II

Press Heat to allow heating only. For Central mode, Zone 1 thermo- stat should also be set at Heat. For Zone mode, all thermostats should also be set at Heat.

Red service light flashes from be- hind the control panel cover when system requires service. Error codes will be stored in control center for readout by technician only.

Press Fan Auto to allow blower to run only while system is

Press Fan On to allow blower to run continuously to circulate air. The

supplying conditioned air. The blower will cycle on and off

fan will keep running in this mode until the Fan Auto button is

according to the demand for heating or cooling. By cycling on

pressed. Fan On tends to mix the air from different zones and effi-

and off, air from different zones is not mixed and better effi-

ciency may suffer if Fan On option is used on a regular basis.

ciencies are achieved.

 

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Lennox Hearth 502, 862M user manual Harmony II Control Panel
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502, 862M specifications

The Lennox Hearth 862M,502 is an innovative fireplace insert that combines advanced technologies with aesthetic appeal, making it an ideal choice for homeowners looking to enhance their living space. Known for its efficiency and performance, this model offers a perfect blend of heat output and visual allure.

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In summary, the Lennox Hearth 862M,502 is a reliable, efficient, and stylish choice for homeowners looking to integrate a fireplace insert into their home. Its combination of advanced technology, robust heating capacity, and elegant design make it an exceptional addition to any living space.
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