Johnson Controls GVC Series User Manual

Johnson Controls
5586996-JSG-A-0120 | Start-Up & Operation Guide
118
Fault Type Description Caused By
Critical Unit locked out - airow proof failure
APS did not close when expected on fan
start-up
Critical
C1A locked out - exceeded operating envelope
limits
Variable speed drive compressor
envelope control: This output shows
lockout when three variable speed drive
compressor operating envelope shutdown
events occurred within two hours of
compressor runtime
Critical C1A locked out due to oil switch
C1A oil switch open. Check crankcase oil
level
Critical Furnace module 1 lockout
Heating section 1 shutdown due to ignition
control module. Check module for fault
enumerator
Critical Furnace module 2 lockout
Heating section 2 shutdown due to ignition
control module. Check module for fault
enumerator
Critical Furnace module 3 lockout
Heating section 3 shutdown due to ignition
control module. Check module for fault
enumerator
ServicePriority Unit shutdown airow validation fail
Heating and cooling shutdown, blower
operation not proven. Check APS, DPS
ServicePriority Circuit 1 shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority Circuit 2 shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C1A shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C1B shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C1C shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C2A shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C2B shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C2C shutdown due to high pressure
Caused by dirty condenser coils,
condenser fan failure, over charged
ServicePriority C1A shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C1B shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C1C shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C2A shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C2B shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
ServicePriority C2C shutdown due to low pressure
Caused by low airow, dirty lters, iced on
coil, low charge
Table 33: Faults List (Continued)

Johnson Controls GVC Series Specifications

General

Brand	Johnson Controls
Model	GVC Series
Category	Air Conditioner
Language	English