[
I
Read Before Servicing ]
- 7 -
HWE10130
GB
[6] Air Tightness Test
No changes have been made in the detection method. Note that a refrigerant leak detector for R22 will not detect an R410A leak.
1. Items to be strictly observed
Pressurize the system with nitrogen to the design pressure (REPLACE MULTI Y(PUHY-RP): 3.3 MPa [479 psi]; REPLACE
MULTI R2 (PURY-RP): 3.6 MPa [523 psi]), and check for refrigerant leakage. Take the temperature fluctuations into account
when measuring pressure.
Refrigerant R410A must be charged in its liquid state (vs. gaseous state).
2. Reasons
Oxygen, if used for an air tightness test, poses a risk of explosion. (Only use nitrogen to check air tightness.)
Refrigerant R410A must be charged in its liquid state. If gaseous refrigerant in the cylinder is drawn out first, the composition
of the remaining refrigerant in the cylinder will change and become unsuitable for use.
3. Notes
R410A does not contain chloride, so leak detectors for use with older types of refrigerants will not detect an R410A leak. Be
sure to use a leak detector designed for use with R410A.
Halide torch
R22 leakage detector
Содержание PUHY-RP200
Страница 9: ...HWE10130 GB ...
Страница 11: ... 2 ...
Страница 21: ... 12 I Read Before Servicing GB HWE10130 ...
Страница 23: ... 14 ...
Страница 63: ... 54 II Restrictions GB HWE10130 ...
Страница 65: ... 56 ...
Страница 75: ... 66 ...
Страница 83: ... 74 IV Remote Controller GB HWE10130 ...
Страница 85: ... 76 ...
Страница 88: ... 79 HWE10130 GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 81 2 Principal Parts and Functions 82 ...
Страница 89: ... 80 ...
Страница 95: ... VI Refrigerant Circuit 86 HWE10130 GB ...
Страница 97: ... 88 ...
Страница 121: ... 112 VII Control GB HWE10130 ...
Страница 123: ... 114 ...
Страница 159: ... 150 ...
Страница 259: ... 250 IX Troubleshooting GB HWE10130 ...
Страница 260: ... 251 HWE10130 GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 253 ...
Страница 261: ... 252 ...