Barko 595B - Page 62

26-4
®
GENERAL HVAC SYSTEM (continued...)
1.1 SERVICE SCHEDULE:
Use the following HVAC service schedule as a general guideline to maintain an efficient HVAC
system. This is recommended for “normal” operating conditions, adjust accordingly to extreme conditions.
1 Month 3 month 6 Month 12 Month
NOTES /
INSTRUCTIONS
COMPONENT /
SYSTEM
INSPECTION &
SERVICE REQUIRED
INTERVAL
Air Conditioner- run
X
run for minimum of 5 minutes to
circulate the refrigerant system
lubrication
Perform visual system inspection
X
Manifold Gauge Check- perform
X
System Refrigerant- recover &
recycle
X
System Evacuation & Leak
Test- perform
X
Recharge system with correct
refrigerant charge amount
X
Discharge Line- check
X
warm/hot to touch
Suction Line- check
X
cool to touch
Clutch Hub Face- Inspect
X
look for signs of slippage (heat
discoloration)
Shaft Seal- inspect for presence
of oil & dirt indicating leakage
X
Clutch Pulley & Crankshaft
Drive Pulley- confirm alignment
X
belt will show side wear
Idler Pully- inspect for bearing
wear
X
looseness
Compressor Belt- inspect for
glazing or cracking
X
Belt Tension- check
X
verifiy in engine mfg manual
Clutch Voltage & Current-
check
X
4 amps @ 12 volts
2 amps @ 24 volts
Tubes- inspect for obvious dents
& oil stains/dirt indicating leakage
X
Condenser Fins- clean away dirt
and bugs, staighten if necessary
X
Moisture Indicator- check either
remote mounted or built into the
drier
X
blue is OK while pink or white
indicates moisture presence and
replacement required
Drier Canister- check
temperature while running
X
should be warm to touch
Filter- replace annually or
anytime refrigerant system is
opened
X
Inlet (liquid) Line from Drier-
check
X
should be warm to touch
Refrigerant Charge Head-
check for damage & leakage
X
Evaporator Fins- clean dirt, bugs
& airborne particulate
X
Drain Pan & Drain Hole- clean
dirt, bugs & airborne particulate
X
Drain Pump (if present) & Float-
inspect for obstructions and
operation
X
Filters- inspect and clean or
replace as needed
X
dirty filters can cause airflow
restriction and premature blower
failure
Thermostat- check for proper
operation
X
Pressure Switches- with
manifold gauges installed, check
refrigerant pressure switches for
proper operation
X
Water Valve- check for proper
operation
X
with control panel temp setting in
full cold position, valve should be
closed
2
Compressor &
Belt Drive System
1
System
Maintenance
performed only by qualified HVAC
service personnel
3 Condenser
4 Receiver/Drier
7
Other
Components
5 Expansion Valve
6 Evaporator
06/03/2019
Updated
OPERATOR’S