Carrier XCT 7 Series Installation And Owner's Manual page 21

Installation Procedures
Apple refrigerant oil
Pipe size
Model
40VL005~018B-7E-QEE
INSTALLATION OF WATER DRAINAGE PIPE
(1) Install the water drainage pipe
• Pipe diameter should be equal or larger than that of the unit piping.(pipe of polyethylene; size: 20mm; O.D:26mm)
• Drain pipe should be short, with a downward slope of at least 1/100 to prevent air bag from forming.
• If downward slope can't be created, take other measures to lift it up.
• Please install the drain hose towards a downward slope without fail.
• Please don't fix the drainage as shown below.
• Please pour water in the drain pan of the indoor unit and confirm that drainage is being drained to the outdoor.
• In case that the attached drain hose is in a room, please heat insulate it without fail.
It becomes
high midway.
Medium size seal pad
(Cover the piping joint with seal pad.)
Torque spanner
spanner
Piping joing
Flare nut
Gas pipe
12.7mm
Ø
The end is imm-
It waves
ersed in water
(accessory)
Clamp
Liquid pipe
Liquid pipe
6.35mm
Ø
Less than 5 cm
The gap with the
ground is too small.
14
Insulator (accessory)
(For liquid pipe)
Insulator (accessory)
(For gas pipe)
gas pipe
There is the bad
smell for ditch