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
