Installation manual
7
4AMX80E7V3B
R410A Split series
4PW38479-1A
H
OW
TO
USE
REDUCERS
Use the reducers supplied with the unit as described below.
Connecting a pipe of Ø12.7 to a gas pipe connection port for Ø15.9:
Connecting a pipe of Ø9.5 to a gas pipe connection port for Ø15.9:
Connecting a pipe of Ø9.5 to a gas pipe connection port for Ø12.7:
■
When using the reducer packing shown above, be careful not to
overtighten the nut, or the smaller pipe may be damaged.
(Approx. 2/3 - 1x the normal torque)
■
Apply a coat of refrigeration oil to the threaded connection port
of the outdoor unit where the flare nut comes in.
■
Use an appropriate torque wrench to avoid damaging the
connection thread by overtightening the flare nut.
P
UMP
DOWN
OPERATION
In order to protect the environment, be sure to pump down when
relocating or disposing of the unit.
1
Remove the valve lid from liquid stop valve and gas stop valve.
2
Carry out forced cooling operation.
3
After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4
After 2-3 minutes, close the gas stop valve and stop forced
cooling operation.
Forced operation
1
Turn the operation mode switch SW2 to "COOL". (Heat pump
only)
2
Press the forced operation switch SW1 to begin forced cooling.
(See
WARNING
■
Do not use mineral oil on flared part.
■
Prevent mineral oil from getting into the system as this
would reduce the lifetime of the units.
■
Never use piping which has been used for previous
installations. Only use parts which are delivered with
the unit.
■
Do never install a drier to this R410A unit in order to
guarantee its lifetime. The drying material may
dissolve and damage the system.
■
Incomplete flaring may cause refrigerant gas leakage.
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
Ø15.9
↓
Ø12.7
Ø12.7
↓
Ø9.5
Ø15.9
↓
Ø12.7
Ø12.7
↓
Ø9.5
Ø15.9
↓
Ø9.5
Ø15.9
↓
Ø9.5
Gasket (1)
Gasket (2)
Reducer and gasket
1
Inter-unit piping
2
Flare nut (for Ø15.9)
3
No. 3
4
No. 1
Be sure to attach the gasket
5
Connection port of outdoor unit
1
Flare nut (for Ø9.5)
2
No. 5
3
No. 6
Be sure to attach the gasket
1
Flare nut (for Ø12.7)
2
No. 4
3
No. 2
Be sure to attach the gasket
5
4
1
3
2
3
2
1
3
2
1
Flare nut
Flare nut tightening torque
Ø9.5
32.7~39.9 N•m
(333~407 kgf•cm)
Ø12.7
49.5~60.3 N•m
(505~615 kgf•cm)
Ø15.9
61.8~75.4 N•m
(630~769 kgf•cm)
1
Service PCB
2
Operation mode switch SW2
3
Forced operation switch SW1
NOTE
Forced operation automatically stops
approximately 15 minutes after starting.
To continue forced operation after elapse of the 15
minutes, press the forced operation switch SW1
again.
To stop forced operation immediately, press the
forced operation switch SW1.
1
3
2
4
4
5
1
Gas stop valve
2
Close
3
Hexagonal wrench
4
Valve lid
5
Liquid stop valve
Summary of Contents for 4AMX80E7V3B
Page 1: ...INSTALLATION MANUAL 4AMX80E7V3B R410A Split series ...
Page 15: ...NOTES NOTES ...
Page 16: ...4PW38479 1A Copyright Daikin ...
