High Pressure Switch (Hps); High Pressure Sensor (Hpt) - Daikin LX10F11B3 Service Manual

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4.8.8 High Pressure Switch (HPS)

Type
OFF 2400kPa（24.47kg/cm
Setting value
ON 1900kPa（19.37kg/cm
●Replacement method
1. Remove cable from inverter box.
2. Remove HPS from joint with check valve.
※ Loosen flare nuts A and B using two wrenches.
(Fig. 1)
※Do not lose push-stick inside the joint. (Fig. 2)
3. Installing of HPS
※ Tighten flare nuts A and B using two wrenches.
(Fig. 1)
4. Make sure no gas leakage after install HPS.
Two wrenches
Discharge pipe
Fig. 1 Use two wrenches when
removing and installing.
Joint with check valve
Fig. 2 Do not lose push-stick.
ACB-LB164
2
）
2
）
HPS （or HPT）
Push-stick
4-19

4.8.9 High Pressure Sensor (HPT)

Type NSK-BH030F-391
●Removal of HPT
1. Remove the lead wire from the control box.
2. Remove the HPT from the joint with check valve.
※ Loosen flare nuts A and B using two wrenches.
※ Do not lose the push pin inside the joint with
check valve.
●Installation of HPT
1. Connect the HPT to the joint with check valve.
※Tighten flare nuts A and B using two wrenches.
2. Conduct a gas leakage test to check that no gas
leaks after installing the HPT.
3. Bend the HPT lead wire as shown in Fig. 1, and
then band the lead wire to the HPT body.
Do not apply a heavy
stress to the base of the
lead wire.
HPT
Band the lead wire
to the HPT body.