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FORM 155.32-ICOM2.EN.UL SECTION 7 – MAINTENANCE
ISSUE DATE:1/10/2018
JOHNSON CONTROLS 143
LIFESPAN FOR VARIOUS PARTS
The replacement periods for some parts are shown below. (The following periods are
shown for reference only. The replacement period may be changed according to the actual
environment, or frequency of use. Other parts may need to be replaced if used incorrectly.)
Table 39 - Lifespan of Common Parts
DESCRIPTION
APPLICABLE MODELS OR
SECTIONS
LIFESPAN OF COMMON
PARTS
Gasket CHW Water Box every 2 years
Gasket CW Water Box every 1 year
Gasket, O-Ring, Diaphragm every 24,000 hrs
Evaporator Tube
About 15 years Depends on
the eddy current
result at interval 24,000 -
30,000 hrs.
Absorber Tube
Condenser Tube
Ht-G Tube
Lt-G Tube about 15 years
Gasket HT-G Channel Box every 2 years
Main Circuit Board
every 30,000 hrs
Relay MY-2N, MY-4N
Timer H3Y-2
Power Unit RWS series
Magnet Switch, Thermal Relay HK series
Battery for main circuit board CR2032 every 3 years
Battery for touch panel PFXZCBBT1 every 5 years
Touch Panel GP4000 series
every 30,000 hrs
Inverter (Option) D700 series
Temperature Controller SDC series
Fan for Control Panel
Burner Controller LMV51
Flame Detector every 15,000 hrs
Gas Pressure Switch
every 30,000 hrs, Only Gas,
Dual Burner
Pilot Solenoid Valve
Pilot Governor
Pressure Gauge
every 30,000 hrs
Ignition Transformer
Air Pressure Switch
Control Motor
Gas Main Solenoid Valve
Spark Rod
High Voltage Code
Main Shut-Off Gas Valve
every 30,000 hrs, Only Gas,
Dual Burner
Burner Fan Motor every 30,000 hrs