Gree GUHD18ND3FO - Page 58

U-Match Series DC Inverter Service Manual
55
Condensate
Drainpipes
Level Instrument
Air Intake
Air Supply
B
A
B
Enlarged View
Condensate Drainpipe
As the inside of the unit is in the negative
pressure status, it is required to set up a
backwater elbow. The requirements is:
A=B≥(0.145P/10000+20)/25.4(inch)
P is the absolute pressure inside the unit.
The unit of the pressure is psig.
Figure 3-1-5
1.1.4 Dimension Data
 For the units: 18k
 For the units: 24k~42k