Service Manual

Super Free Match
Service Manual
INSTALLATION
103
Indoor unit 3 Wall mounted type GWH09UB-D3DNA1A/I
Indoor unit 4 Wall mounted type GWH09MB-D3DNA3D/I
Indoor unit 5 Duct type GFH(09)EA-D3DNA1A/I
Indoor unit 6 Wall mounted type GWH09TB-D3DNA1A/I
Serial No. Diameter(mm) Length(m)
L1 Φ 02 25.9
L2 Φ 01 25.9
L4 Φ 01 25.9
1A Φ 5 53.6
1B Φ 5 53.6
1C Φ 5 53.6
2A Φ 5 53.6
2B Φ 5 53.6
2C Φ 5 53.6
The total length of the liquid pipes: 20+10+10+5+5+5+5+5+5=70(m).
Thus, the total length is over than 30m, so the air conditioner needs to add refrigerant.
 Additional refrigerant charge
Σ the Liquid Pipe Length of Φ6.35×0.022kg/m +Σ the Liquid Pipe Length of Φ9.52×0.054kg/m-1.47(kg)
=(5+5+5+5+5+5)(m)×0.022kg/m+(20+10+10)(m)×0.054kg/m-1.47(kg)
=1.35(kg)
4) Additional refrigerant charge record
Diameter(mm) Total length(m) Additional refrigerant charge(kg)
Φ 53.6
Φ 25.9
latoT
6.10.2 Procedures for adding refrigerant
NO. 1 2 3 4 5
Name Outdoor unit Service port Gas side stop valve Liquid side stop valve
Pressure-vacuum
gauge
NO. 6 7 8 9
elacS knat A014R bonk-oL bonk-iH emaN
1) When the liquid and gas stop valves have not been opened, the system is under the vacuum:
① Refer to the left of the figure above; connect the R410A tank to the system.
② Turn on the R410A tank and the Hi-knob; charge the R410A refrigerant into the unit from the liquid side