Safety Precautions - Daikin VRV Plus Series General Information Manual

Si33-003.book Page 185 Monday, June 25, 2001 9:06 AM
SiE33-003

10. Safety Precautions

10.1 Safety Precautions

HFC refrigerants require special caution since are under high pressure.
(R-407C is approximately 10% higher in pressure than R22)
Extra caution must be exercised in the following cases.
1. When disconnecting a hose from the service port with refrigerant remaining inside the charge hose
2. When disconnecting a connection pipe with a refrigerant remaining inside the charge hose (Refrigerant
Caution regarding ventilation
R-407C is heavier than air and tend to stay near the floor. Gas leaks can, therefore. cause oxygen
deficieney in the work area.
Use of a flame in an environment containing an R-407C gas generates a unpleasant, corrosive and toxic
gas.
New Refrigerant R-407C
(When a hose is disconnected with a refrigerant inside, the hose may move around violently or
refrigerant may shoot out.)
may shoot out from the disconnected section.)
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Safety Precautions
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