Carrier XCT7 Installations- Und Benutzerhandbuch Seite 19

Installation Instructions
Because the unit is with refrigerant R410A, the below issues should be carefully noted:
• To prevent a different oil from entering the pipe, please use the special tool prescribed for R410A,
especially for gauge manifold and charging hose.
• To prevent the compressor oil from entering the refrigerant cycle, please use the anti-counter-flow adapter.
(8). Check valve operation
Open/close method:
• Remove the valve cap.
• Turn the liquid stop valve and the gas stop valve with a hexangular spanner until it stops. If the valve is
opened aggressively, it will be damaged.
• Tighten the valve cap.
Tighten torque as shown in the table below:
For gas pipe
For liquid pipe
(9). Additional refrigerant charging
Charge the additional refrigerant in liquid state with the gauge.
If the additional refrigerant cannot be charged fully when the outdoor unit is off, charge it during trial. If the unit runs for a
long period without refrigerant, the compressor will fail.
(charging must be finished within 30 minutes, especially when the unit is running).
A. The unit is only charged with the standard volume of refrigerant (distributing pipe length is 0 m). Additional
charging amount=actual length of liquid pipe x additional amount per meter liquid pipe
Additional charging amount=L1×0.35+L2×0.25+L3×0.17+L4×0.11+L5×0.054+L6×0.022
L1: total length of 22.22 liquid pipe; L2: total length of 19.05 liquid pipe; L3: total length of 15.88 liquid
pipe; L4: total length of 12.7 liquid pipe; L5: total length of 9.52 liquid pipe; L6: total length of 6.35 liquidpipe;
B. Refrigerant charging and additional charging
Ø Ø
22.22 19.05
0.35 0.25
Note:
• To prevent a different oil from entering the pipe, please use the special tool for R410A, especially for gauge manifold
and charging hose.
• Mark the refrigerant type in a different colour on the tank. R410A is pink.
• When charging refrigerant, it should be taken out from the tank in liquid state.
• Mark the refrigerant volume according to the distributing pipe length on the label.
GWP: 2088
The product contains fluorinated greenhouse gases and its functioning relies on such gases.
Model
38VS125C7SHQEE
38VS140C7SHQEE
Tighten torque N·
Shaft (valve body)
Less than 7
7.85 (MAX15.7)
Additional refrigerant charging per meter(kg/m
Ø
15.88
0.17
Sound power level(dBA)
Cooling
69
71
m
Cap (cover) T-shape nut (check joint)
Less than 30
29.4 (MAX39.2)
)
Ø Ø
12.7 9.52
0.11 0.054
Shipping
Weight
Heating
(kg)
71 97
73 97
12
12
13
8.8 (MAX14.7)
Charging outside the factory
Ø
6.35
0.022 Refer to label