Movincool CM25 Service Manual User Manual download pdf (Page 83)

Repair Section

83

(3) Checking vacuum

1) Leave the high-pressure valve and the low-

pressure valve of the gauge manifold closed for 5

minutes or more, and confirm that the gauge

pointer does not return to zero.

2) If the gauge pointer returns gradually to zero

there is a leak somewhere in the system (this

could also include gauge manifold). Perform a

leak check according to the procedure indicated

in the next step. Once the leak has been found

and repaired, evacuate the system once more to

confirm that the system holds vacuum.

I003203

Return

Pipe Brazing

Leave valves closed for 5

minutes or more. Pointer of

pressure gauge returning to

zero indicates there is a leak.

LO

Closed

HI

Closed

Valve Setting

Pressure Gauge

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 89

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