Engineering Manual

4 Refrigerant Piping
*For details on piping, refer to the installation manual of the indoor unit.
[With the stop valve of the outdoor unit fully closed]
1.Apply lubricant to the flare sheet of the L-shaped pipes (gas pipe, liquid pipe)
89
.
2.Remove the flare nut and cap from the indoor unit.
3.Apply lubricant to the flare sheet connecting section of the indoor unit.
4.Connect the L-shaped pipes (gas pipe, liquid pipes)
8
and
9
quickly.
5.Fit the removed flare nut to the existing pipes and carry out flaring.
6.Connect the L-shaped pipes with the existing pipes in the same way.
7.Cover each connection with heat insulator
01
.
[After the refrigerant circuit is complete]
8.Vacuumize the refrigerant lines through the service port of the liquid stop valve.
9.Fully open the stop valves (both liquid and gas).
* The method for operating the stop valve is described on the outdoor unit installation manual.
lnsulator A,B
01
L-shaped pipes 8,9
(gas pipe, liquid pipe)
Indoor unit
Refrigerant pipes(locally supplied)
Cover this part with insulator
A
0 and then cover it over
with insulator
B
1
Use the flare nut which has
been removed from
the indoor
unit.
WApply the ester-oil or ether-oil
or alkylbenzene
(locally supplied)
Wrap this part with the insulator
that comes with the indoor unit.
3 Installing the Drain lift up mechanism
1.Remove the intake grille and side panel. (Refer to the indoor unit installation manual.)
2.Prepare the knockout hole to be used for the upper piping of the indoor unit.
3.Fix the attachment
2
with the fixing screws
3
(×2)
Drain lift up mechanism
1
Fixing screws
3
Fixing screws
3
Attachment
2
Rear side panel
(metal plate)
Right side panel
(metal plate)
Fixing screws
3
Knockout hole
for upper piping
Convex
for locating
4.Fix the drain lift up mechanism
1
with the fixing screws
3
(×4)
Drain Pump PAC-SH84DM-E
192