Service - Lennox Core Unit Controller Setup Manual

9.3.

Service

9.3.1. Component Test
For cooling, the following tests can be run:
• Cooling Stages 1 through 4 - Tests are discharge and return air temperatures, compressor status and percent demand.
• Same tests listed above is available for all compressors present.
For heating, the following tests can be run:
• Heat Stages 1 through 4 - Tests are discharge and return air temperatures, and percent demand.
Other tests:
• Blower Speed
• Damper Position
• Power Exhaust
• Outdoor Fans 1 through 4
COMPONENT TEST
COOLING STAGE 1
COOLING COOLING STAGE 2
COOLING STAGE 3
COOLING STAGE 4
BLOWER BLOWER SPEED AND CFM
DAMMPER POSITION
DAMPER
POWER EXHAUST
FAN 1
OUTDOOR
FAN
FAN 2
FAN 3
FAN 4
OUTPUTS SERVICE RELAY = ON OR OFF
Figure 24. Component Test Menu Structure
COOLING STAGE 1, 2, 3 OR 4
COMPRESSOR 1, 2, 3 OR 4
COMPRESSOR 2, 2, 3 OR 4
COMPRESSOR 3, 2, 3 OR 4
COMPRESSOR 4, 2, 3 OR 4
START & STOP TEST
DAMPER POSITION AND DAMPER FEEDBACK
STATUS START & STOP TEST
FAN 1, 2, 3 AND 4 STATUS
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START & STOP TEST
START & STOP TEST
START & STOP TEST