Sound Levels - Chigo CCB-18HVR4 Technical Manual

R3250Hz Universal Outdoor Series Technical Manual

7.Sound Levels

18kBtu/h-60kBtu/h
COU-18HDR4
COU-24HDR4
COU-36HDR4-A
COU-36HZDR4
COU-48HZDR4
COU-55HZDR4
Note: Sound level is measured at a point 1 m in front of the unit, at a height of (Unit body height +1)/2 m.
120
Microphone
1 m
(body height +1 )/2 m
Model
Rear side
Power level dB(A)
63
67
68
68
70
70
GD Chigo Heating & Ventilation Equipment Co., Ltd.
1 m
Front side
Pressure level
52
54
55
55
58
58
Microphone
1.2 m