Daikin LX10F10A, Service Manual

Page: 107 / 126

4-18
4.8.8 High Pressure Switch (HPS)
Type ACB-LB156
Setting value
OFF 2400kPa （ 24.47kg/cm 2 ）
ON 1900kPa （ 19.37kg/cm 2 ）
● Replacement method
1. Remove cable from inverter box.
2. Remove HPS from joint with check valve.
※ Loosen flare nuts A and B using double
wrenches. (Fig. 1)
※ Do not lose push-stick inside the joint. (Fig. 2)
3. Installing of HPS
※ Tighten flare nuts A and B using double
wrenches. (Fig. 1)
4. Check if no gas leakage after completion of work.
4.8.9 High Pressure Transducer (HPT)
Type NSK-BD010F-070
● Removal of HPT
1. Remove HPT cable from control box.
2. Remove heat shrink tube and HPT from joint with
check valve.
※ Loosen flare nuts A and B using double
wrenches. (Fig. 1)
※ Do not lose push pin inside the joint with check
valve. (Fig. 2)
● Installing of HPT
1. Insert heat shrink tube into HPT body.
2. Connect HPT to joint with check valve.
※ Tighten flare nuts A and B using double
wrenches. (Fig. 1)
3. Conduct gas leakage test and check to make
sure no gas leakage after installing of HPT.
4. Set one end of heat shrink tube to joint seat with
check valve (Fig. 3) and then
① Shrink the tube by heating up using drier. (Fig. 3)
② Apply silicon sealant to both ends inside of
the tube. (Fig. 3)
③ Band both ends of the tube. (Fig. 3)
④
Bend HPT cable and band the cable to HPT
body. (Fig. 4)
Fig. 1 Use double wrenches when
removing and installing.
B
Joint with check valve
HPS
（
or HPT
）
A
Double wrenches
Discharge pipe
Fig. 2 Do not loss push-stick.
Joint with check valve
Push-stick
③ Band both ends
of the tube.
Heat shrink tube
② Apply silicon sealant to
both ends inside of the tube
HPT
Fig. 3
Joint seat with check valve
①
Shr
ink the tube
in this area
④ Band the cable to HPT body
Fig. 4