Page 18
Indoor Unit
1 − Clean or change the filters.
2 - Lennox blower motors are prelubricated and permanent-
ly sealed. No more lubrication is needed.
3 − Adjust blower speed for cooling. Check the pressure
drop over the coil to determine the correct blower CFM.
Refer to the Lennox Engineering Handbook for indoor
unit blower CFM tables.
4 −
Belt Drive Blowers −
Check belt for wear and proper
tension.
5 − Check all wiring for loose connections.
6− Check for correct voltage at unit. (blower operating)
7 − Check amp−draw on blower motor.
Motor nameplate_______Actual_______.
Optional Accessories
Refer to the Engineering Handbook for optional accesso-
ries that may apply to this unit. The following may or may
not apply:
Loss of Charge Kit
High Pressure Switch Kit
Compressor Monitor
Compressor Crankcase Heater
Hail Guards
Mounting Bases
Timed Off Control
Stand−off Kit
Sound Cover
Low Ambient Kit
Monitor Kit
HP27 Check Points
Start−up and Performance Check List
Job Name
Job Location
Installer
Unit Model No.
Nameplate Voltage
Rated Load Ampacity
Maximum Fuse or Circuit Breaker
Refrigerant Lines:
Service Valves Fully Opened?
Outdoor Fan Checked?
Job No.
City
City
Serial No.
Date
State
State
Service Technician
Compressor
Outdoor Fan
Indoor Filter Clean?
Electrical Connections Tight?
Supply Voltage (Unit Off)
Vapor Pressure
Thermostat
Refrigerant Charge Checked?
Calibrated?
Properly Set?
Level?
Properly Insulated?
Voltage With Compressor Operating
Leak Checked?
Service Valve Caps Tight?
Indoor Blower RPM
Outdoor Coil Entering Air Temp.
Liquid Line Pressure
S.P. Drop Over Indoor (Dry)
Cooling
Vapor Pressure
Refrigerant Charge Checked?
Liquid Line Pressure
Heating
Sequence of Operation
Heating Correct
Cooling Correct
