Airwell YUDA060, Service Manual

Page: 27 / 70

Installation of water drainage pipe
Refrigerant piping
( As for outdoor piping, please refer to installation of outdoor unit )
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outsid of lflare nut. Tighten it band tight 3-4 turns then tighten it.
Use torque specified in Table 1. (Too much force may damage flare nut, causing gas leakage).
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.
Cover joint of gas piping and insulator with seal.
Table 1
(1) Install water drainage pipe
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethylent; size: 25mm; O.D:32mm)
Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening.
If downward slope can't be made, take other measures to lift it up.
Keep a distance of 1-1.5m between suspending brackets, to make water hose straight.
Slope over 1/100
1-1.5m
(Note)
If several water hoses join together, do as per following proceedures.
Specifieations of the water hoses shall meet the requirements for the unit running.
The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it.
Medium size seal pad 11 (accessory)
R0.4 ~ 0.8
A
90
0.5
45
2
Connect water hoses with a T joint.
white tape. Tighten the clip until head of the screw is less than 4mm from hose.
Wind the drain hose to the clip using seal pad 9 .
Insulate drain hose in the room.
1
Apple refrigerant oil
Torque spanner
spanner
Piping joing
Flare nut
Clamp 3
Gas pipe
Liquid pipe
Insulator (accessory)
(For liquid pipe)
Insulator (accessory)
(For gas pipe)
(Cover the piping joint
with seal pad.)
Pipe
size
Tighten
torque
A(mm) Flare shape
9.52 3270~3990N.cm
(333~407kgf.cm)
6180~7540N.cm
(630~770kgf.cm)
15.88
19.05 9720~11860N
.cm
(990~1210kgf.cm)
12.0~12.4
18.6~19.0
22.9~23.3
7
8
7
< Cautions for the drain water lifting pipe >
75 below
Self-provided stiff pipe
(accessory)
500 below
Clamp
Tape (White) Self-provided stiff pipe
300mm below
1~1.5m
280 below
500 below
220
Drain hose
(accessory)
drain water lifting pipe
Suspending bracket
Clamp
(accessory)
Installation height shall be less than 280mm.
There should be a right angle with unit, 300mm from unit.
Over 100
4mm below
(accessory)
(accessory)
Large size seal pad
Clamp
10
6.35 1420~1720N.cm
(144~176kgf.cm)
8.3~8.7
Use the self-provided stiff pipe and clamp with unit. Insert water pipe into water plug until it reaches
the
Installation
27