6.Trial running
Fig. 6.2
Outdoor unit
Indoor unit
Room of refrigerant leakage
All refrigerant leaked
ventilating device shall be installed (for frequent air ventilating).
apparatus interlinked with the mechanical air ventilating device.
5) Measures against exceeding the critical concentration
a) To control the refrigerant concentration below the critical concentration, a mechanical air
b) If frequent air ventilating cannot be realized, please install a leakage warning and detecting
Indoor unit
a.Ventilation port position
b.Leak detection alarm device connect to mechanical ventilation
D
D
0A
(the leakage warning and detecting apparatus shall be installed in a place with dense refrigerant accumulation)
Fig. 6.3
≤
critical concentration: 0.3[kg/m
³
]
23
A[kg]
B[m
³
]
V.2