Sanyo MDF-C8V service manual Collection and charge of refrigerant

Collection and charge of refrigerant

1. Preparation a.

*Refrigerant [MU-N48]

*Connector for charging pipe (if necessary)

2. Procedures b.

1)Pull vacuum in refrigeration circuit

Pull vacuum by pump for approx. 5 minuites.

<NOTE>

It is important to pull vacuum in the circuit to avoid possibility causing fire by residual refrigerant (R-600).

2) Connect charging pipe.	c.
Measure weight of tank before charge. (See picture c.)
Connect tank with both vacuum pump and gauge
manifold. (See picture d.)
It should be taken 3 hours at least to pull vacuum
with 2 tanks.
Pump capacity: 300L/min.
d.

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