Optional Accessories - Lennox Merit Series 13ACX Installation Instructions Manual

1. Make sure power is off before cleaning. Clean and
inspect outdoor coil. The coil may be flushed with a
water hose.
2. The outdoor coil is protected by an inner mesh screen
and a wire cage (see figure 38). If debris has collected
between the mesh screen and the coil and cannot be
dislodged by spraying un−pressurized water from
inside coil surface to the outside, the mesh may be
removed by first removing the top of the unit which will
allow for removal of the wire cage.
3. Then, using pliers to grip the head of the push pins, pull
straight out to extract the push pins along one side of
the coil. If necessary, remove the push pins along the
back of the unit; it is usually unnecessary to fully
remove the inner mesh screen.
4. Drape the mesh screen back and wash the coil. When
all the debris has been removed from the coil, reinstall
the mesh screen by positioning it in its original position
and reinserting the push pin. No tool is required to
push the pin back into the same slot in the fins.
5. If the push pin is loose and tends not to stay in place,
brush the fins with a fin brush (22 fins/in). Line up the
push pin a couple fins to the right or left of the original
hole and re−insert the pin.
PRESERVICE CHECK
If your system fails to operate, check the following before
calling for service:
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Make sure all electrical disconnect switches are ON.
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Make sure the room thermostat temperature selector
AND the system switch are properly set.
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Replace any blown fuses, or reset circuit breakers.
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Make sure unit access panels are in place.
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Make sure air filter is clean.
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Locate and record unit model number before calling.
PROGRAMMABLE THERMOSTATS
Your Lennox system
programmable thermostat. These thermostats provide the
added feature of programmable time-of-day set points for
both heating and cooling. Refer to the user's information
manual provided with your thermostat for operation
details.
may be controlled by
THERMOSTAT OPERATION
Thermostat operations vary from one thermostat to
another. The following provides general operation
procedures. Refer to the user's information manual
provided with your thermostat for specific operation
details.
Temperature
Setting Levers
Fan Switch
System Switch
Temperature
Indicator

Optional Accessories

Refer to the Lennox 13ACX Engineering Handbook for the
latest available accessories for this unit. Below is a list of
accessories available at the time this instruction was
publish.
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Compressor Start Kit
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Loss of Charge Kit
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Low Ambient Kit
S
Timed Off Control
a
S
Sound Cover
S
Replacement Liquid Line Drier
S
Plastic Feet Kit
S
Crankcase Heater
Page 23
Set the lever or dial to the desired temperature
setpoints for both heating and cooling. Avoid
frequent temperature adjustment; turning the unit
off then back on before pressures can equalize
will put unusual stress on the unit's compressor.
In AUTO or INT (intermittent) mode, the blower
operates only when the thermostat calls for heating
or cooling. This mode is generally preferred when
humidity control is a priority. The ON or CONT
mode provides continuous
operation, regardless of whether the compressor
or furnace is operating. This mode is required when
constant air circulation or filtering is desired.
Set the system switch for heating, cooling or auto
operation. The auto mode allows the system to
automatically switch from heating mode to cooling
mode to maintain predetermined comfort settings.
The temperature indicator displays the actual room
temperature.
indoor blower
13ACX SERIES