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Lennox LZP-4 - Heating and Cooling Operation; Heating Operation; Cooling Operation

Lennox LZP-4
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The following sections describe how to make Heating, Cooling,
and Emergency Heat calls.
Heating Operation
To start heating:
1. Set your thermostat to the Heat mode. Depending on the
thermostat, this is accomplished by either manually moving a
switch to the Heat position or digitally selecting Heat mode
with a push button. Consult your thermostat Owner’s Manual
for details.
2. Adjust the thermostat set point to a temperature higher than
the displayed room temperature so that a Heat call is initiated.
Again, consult your thermostat Owner’s Manual for details on
how to do this properly.
An LED labeled ‘Heating’, on the zone panel enclosure will
indicate if the board is making a call for heat. If the equipment
does not come on right away it may be due to the minimum-off
time delay. Four minutes must elapse after the last heating cycle
before it can come on again. This built in feature ensures that
the heating equipment does not cycle too frequently, shortening
the life of the equipment.
Cooling Operation
1. Set your thermostat to the Cool mode. Depending on the
thermostat, this is accomplished by either manually moving a
switch to the Cool position or digitally selecting Cool mode with
a push button. Consult your thermostat Owner’s Manual for
details.
2. Adjust the thermostat set point to a temperature lower than the
displayed room temperature so that a Cool call is initiated.
Again, consult your thermostat Owner’s Manual for details on
how to do this properly.
An LED Labeled ‘Cooling’, on the zone panel enclosure will
indicate if the board is making a call for cooling. If your air
conditioning does not come on right away it may be due to the
minimum-off time delay. Four minutes must elapse after the last
air conditioner cycle before it can come on again. This built-in
feature ensures that the air conditioner does not cycle too
frequently, which can reduce the life of your equipment.

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