4-24
y
Apply the heat shrinkage tube in the
following position, then shrink it with hot air
of a dryer.
u
Apply sealer between the heat shrinkage tube
and the flare nut. (Sealer :KE4898)
i
Fix the low pressure transducer with the
clamp plate, and fix the cable with the binding
band.
Fix the shrinkage tube end of the cable side
downward for prevention of water entering
into the tube.
4.2.13 High pressure transducer (HPT)
●
Model SPCH01
●
Colour indication: High pressure transducer: Red
High pressure transducer: cable: Red
The HPT is located in the refrigerant circuit.
The operating high pressure value is displayed
on the controller indication panel.
(1) Replacement procedure
The replacement procedure is the same as
that for the low pressure transducer.
Make sure that the fixing position and the
cable connection is correct.
r
Dryer
Make the heat shrinkage
tube fit in this area
Gauge
pipe side
Low pressure
transducer cable side
q
Heat shrinkage tube
w
Connector
e
Flare nut
q
Clamp plate
Fix the tube directing
the end downward
w
Binding band
Sealer
4.2.14 Water pressure switch (WPS)
●
Type: LCB-MB10
●
Set value: OFF
98kPa (at 1.0-kg/cm
2
pressure)
ON
39kPa (at 0.4 kg/cm
2
pressure)
●
This switch is used to select air-cooled
operation or water-cooled operation. When
the cooling water flows to provide an inlet
water pressure of the set value or more, a
contact in the switch turns OFF to stop the
condenser fan, thus switching the unit to
water-cooled operation.
(1) Replacement procedure
q
Disconnect the WPS cable from the
controller terminal board.
w
Stop the cooling water pump and make sure
no water pressure is applied. Then,
disconnect the WPS.
e
Replace the WPS and wrap dry seal tape
around the threaded part. Then, tighten a
new WPS.
e
t
r
q
w
q
Water pressure switch (WPS)
w
Cooling water inlet joint
e
Cooling water outlet joint
r
Cap for inlet joint
t
Cap for outlet joint
4.2.15 Humidity sensor
Please replace sensor every 2 years.
(The accuracy of sensor shall be kept within
±5%RH)
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