Required tools:
Hexagonal wrench, adjustable wrench,
torque wrenches, wrench to hold the
joints, gas leak detector, and charging
set.
1.
Recheck the piping connections.
2.
Open the valve caps and service port caps for both
3-way valves.
3.
Connect the charging cylinder to the manifold gauge as
shown above.
4.
Open the valve of the low pressure side of manifold
gauge counterclockwise for 10 seconds, and then close
i
t.
5.
Check for gas leakage.
•
Check the flare connections for gas leakage.
6.
Purge the air from the system.
•
Open the Low pressure side valve of the manifold
gauge.
•
Press the service port pin with the hexagonal wrench to
purge the air for three seconds and then wait for one
minute.
Repeat this three times or more.
7.
Balance the refrigerant in the pipings and the indoor
unit.
•
Close the Low pressure side valve of the manifold
gauge.
•
Press the service port pin with the hexagonal wrench to
release the refrigerant until the gauge indicates 0.1 to
0.3 MPa.
The air in the indoor unit and in the piping must be purged. If air
remains in the refrigeration pipes, it will affect the compressor,
reduce the cooling capacity, and could lead to a malfunction.
8.
Use torque wrench to tighten the service port cap to a
torque of 18 N.m.
9.
Set the both 3-way valves to the open position.
10.
Mount the valve caps to the 3-way valves.
11.
Check for gas leakage.
•
At this time, especially check for gas leakage from the
both 3-way valve’s caps, and from the service port caps.
Caution
If gas leakage is discovered in step (3) above, take
the following measures:
a.
Re-tighten the connecting portion with torque
wrenches.
If the leakage ceases, continue the works from
step (4).
b.
Locate and repair the leak. (Gas leak detector)
Repeat the works from step (1).
11.1. Air Purging of the Piping and Indoor Unit
11.1.1. Air purging
Service port cap
Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents the gas leakage from
the refrigeration cycle.
Procedure:
46
CS-C18DKD CU-C18DKD / CS-C24DKD CU-C24DKD
Содержание CS-C18DKD
Страница 11: ...4 2 Outdoor Unit 4 2 1 CU C18DKD 11 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 12: ...4 2 2 CU C24DKD 12 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 13: ...5 Refrigeration Cycle Diagram 13 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 14: ...6 Block Diagram 14 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 15: ...7 Wiring Diagram CS C18DKD CU C18DKD CS C24DKD CU C24DKD 15 ...
Страница 16: ...CS C18DKD CU C18DKD CS C24DKD CU C24DKD 16 ...
Страница 29: ...9 Operating Instructions 29 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 30: ...30 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 31: ...31 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 32: ...32 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 33: ...33 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 34: ...34 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 39: ...3 For the embedded piping 39 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 59: ...59 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
Страница 70: ...19 2 Remote Control 70 CS C18DKD CU C18DKD CS C24DKD CU C24DKD ...
