JOHNSON CONTROLS
100
FORM 155.35-ICOM2.EN.CE/GB (1018)
DATE: 10/30/2018
SECTION 7 – MAINTENANCE
LIFESPAN OF COMMON PARTS
The replacement periods for some parts are shown
below. The following periods are shown for reference
only. The replacement period may be changed ac-
cording to the actual environment, frequency of use,
and other contributing factors. Other parts may need
to be replaced if used incorrectly.
TABLE 22 -
LIFESPAN OF COMMON PARTS
PART NAME
LIFESPAN AND REPLACEMENT
INTERVAL
REMARKS
Bearing for solution circulation
pump
Every 20,000 hours
Solution circulation pump
Every 60,000 hours
Bearing for solution spray pump
Every 20,000 hours
Solution spray pump
Every 60,000 hours
Bearing for refrigerant pump
Every 20,000 hours
Refrigerant pump
Every 60,000 hours
Evaporator Tube
About 15 years
Depends on the eddy current result at interval
24,000 - 36,000 hours.
Absorber Tube
Condenser tube
Low-Temperature generator tube
High-temperature (exhaust gas
driven) generator tube
Float valve for HG (XG) float box
Every 60,000 hours
Float valve for refrigerant tank
Pump gasket, valve o-ring,
diaphragm rubber
Every 24,000 hours
Solution heat exchanger
About 15 years
Refrigerant automatic blow
solenoid valve
Every 30,000 hours
Cooling or heating changeover
valve
Every 48,000 hours
Pressure release valve
Sampling valve
Purge solenoid valve
Every 30,000 hours
Check valve for purge line
Rubber hose set for purge line
Every 18,000 hours
Gasket for chilled / hot water
chamber
Every 2 years
Gasket for cooling water chamber
Every year
Electrode for HG (XG)
Every 30,000 hours
Float switch for refrigerant tank
Compound gauge
Every 48,000 hours
Vacuum gauge for purge line
Vacuum pump
Every 60,000 hours
V-belt for vacuum pump
Every year
Lubricant oil for vacuum pump
Every month