RZQ71~125B7V3B
Split System air conditioners
4PW16864-1A
Installation manual
4
Drain pipe disposal
If drain pipe disposal from the outdoor unit causes trouble, provide
the drain piping by using of the drain socket (optional).
I
NSTALLATION
SERVICING
SPACE
The numerical figures used in here represent the dimensions for the
71-100-125 class models. Figures between ( ) indicate the
dimensions for the 100-125 class models. (Unit: mm)
(Refer to
"Precautions on installation" on page 3
)
Precaution
(A) In case of non-stacked installation
(B) In case of stacked installation
1.
In case obstacles exist in front of the outlet side.
2.
In case obstacles exist in front of the air inlet.
Do not stack more than one unit.
About 100 mm is required as the dimension for laying the upper
outdoor unit's drain pipe. Get the portion A sealed so that air from the
outlet does not bypass.
(C) In case of multiple-row installation (for roof top use, etc.)
1.
In case of installing one unit per row.
2.
In case of installing multiple units (2 units or more) in lateral
connection per row.
Relation of dimensions of H, A and L are shown in the table below.
R
EFRIGERANT
PIPE
SIZE
AND
ALLOWABLE
PIPE
LENGTH
Suction side obstacle
✓
Obstacle is present
Discharge side obstacle
1
In these cases, close the
bottom of the installation
frame to prevent the
discharged air from
being bypassed
Left side obstacle
Right side obstacle
2
In these cases, only 2
units can be installed.
Top side obstacle
This situation is not
allowed
≥
1000
100
A
≥
200
(300)
100
A
L
A
L
≤
H
0<L
≤
1/2H
150 (250)
1/2H<L
200 (300)
H<L
Installation impossible
All field piping must be installed by a licensed refrigeration
technician and must comply with relevant local and
national regulations.
To persons in charge of piping work:
■
Be sure to open the shut-off valve after piping
installing and vacuming is complete. (Running the
system with the valve closed may break the
compressor.)
■
It is forbidden to discharge refrigerant into the
atmosphere. Collect the refrigerant in accordance with
the freon collection and destruction law.
■
Do not use flux when brazing the refrigerant piping.
For brazing, use phosphor copper brazing filler metal
(BCuP) which does not require a flux.
(If a chlorine flux is used, the piping will corrode, and if
the flux contains fluoride, it will cause the coolant oil to
deteriorate, adversely affecting the coolant piping
system.
≥
500
≥
100
(200)
≥
1000
≥
50
(100)
≥
1000
≥
400 (600)
≥
2000
A
H
L
