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.
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
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 indoor blower
operation, regardless of whether the compressor
or furnace is operating. This mode is required when
constant air circulation or filtering is desired.
System Switch Set the system switch for heating, cooling or auto
operation. The auto mode allows the system to
automaticallyswitch from heating mode to cooling
mode to maintain predetermined comfort settings.
Temperature The temperature indicator displays the actual room
Indicator temperature.
PROGRAMMABLE THERMOSTATS
Your Lennox system may be controlled by a
programmable thermostat. These thermostats provide the
added feature of programmable time-of-day setpoints for
both heating and cooling. Refer to the user's information
manual provided with your thermostat for operation
details.
PRESERVICE CHECK
If your system fails to operate, check the following before
calling for service:
• Make sure all electrical disconnect switches are ON.
• Make sure the room thermostat temperature selector
AND the system switch are properly set.
• Replace any blown fuses, or reset circuit breakers.
• Make sure unit access panels are in place.
• Make sure air filter is clean.
• Locate and record unit model number before calling.
Refer to the Lennox 13ACD Engineering Handbook for the
latest available accessories for this unit. Below is a list of
accessories available at the time this instruction was
)ublish.
Optional Accessory
Compressor Start Kit
Loss of Charge Kit
Sound Cover
Replacement Liquid Line Drier
Plastic Feet Kit
Crankcase Heater - 40W
High Pressure Kit
Catalog Number
10J42
94J47
69J03
12L71
94J45
93M04
94J46
Part Number
LB-31200BM
LB-87620A
69J0301
12L7101
LB-87156A
100499-01
LB-87620A
Job Name
Job Location
Installer
Unit Model No,
Nameplate Voltage
Rated Load Ampacity
Maximum Fuse or Circuit Breaker
Electrical Connections Tight?
Indoor Blower RPM
Discharge Pressure __
Serial No.
Job no. Date
City State
City State
Service Technician
Compressor
Indoor Filter clean?
S.P. Drop Over Indoor (Dry)
Suction Pressure
Outdoor Fan
Supply Voltage (Unit Off)
Outdoor Coil Entering Air Temp.
Refrigerant Charge Checked?
Service Valves: --- Fully Opened? _ Caps Tight?
Voltage With Compressor Operating
J Thermostat
Calibrated? _ Properly Set? _ Level?
505366M 01/08
Page 20
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