Toshiba RAS-M10PKVP-E Service Manual page 84

10-4-5. Installation
NOTE
For installation, at least 3 dimensions should be
kept free from obstacles (walls).
Necessary space for installation
If you need to install the outdoor unit in a location
where there are some obstructions or a wall, secure
sufficient space as shown in the figure below.
The cooling/heating effect may be reduced by 10%.
Upper side view (Unit: mm)
150
or more
Fig. 10-4-2
Side view (Unit: mm)
150
or more
Fig. 10-4-3
Fixing bolt arrangement of outdoor unit
600
Suction side
Diffuser
Fig. 10-4-4
• Secure the outdoor unit with the fixing bolts and nuts
if the unit is likely to be exposed to a strong wind.
• Use Ø8 mm or Ø10 mm anchor bolts and nuts.
300
or more
1000
or more
– 84 –
1. Piping connections to the outdoor unit should be
arranged in the sequence A, B, C, D, E starting
from the bottom.
(For each piping connection, the gas pipe is on
the bottom and the liquid pipe is on the top.)
2. When multiple indoor units are to be connected to
the outdoor unit, make the ends of the pipes and
wires from each indoor unit to ensure that they will
be connected to the outdoor unit correctly.
(Problems caused by indoor units being con-
nected to the outdoor unit incorrectly are very
common in multiple-unit installations.)
3. The length and height difference of the connect-
ing pipes between the indoor and outdoor units
must be within the ranges indicated below.
• Total piping length :
Non. Additional refrigerant ....................... 40 m
Additional refrigerant .............................. 80 m
Additional 20 g of refrigerant ..... Per every 1 m
• Minimum piping length :
A or B or C or D or E = 3 m or more
• Maximum indoor piping length :
A or B or C or D or E = 25 m or less
• Maximum piping height difference :
A or B or C or D or E = 15 m or less
• Maximum piping/height difference between
2 units = 15 m or less
Fig. 10-4-5
4. Connect 2 or more indoor units for heat pump.
5. If the outdoor units is to be mounted on a wall,
make sure that the platform supporting it is
sufficiently strong.
The platform should be designed and manufac-
tured to maintain its strength over a long period
of time, and sufficient consideration should be
given to ensuring that the outdoor unit will not fall.
6. When the outdoor unit is to be mounted high on
a wall, take particular care to ensure that parts
do not fall installer is protected.
7. When doing installation work on level ground, it
is usual to wiring and piping connections to the
indoor units. And/then make to the outdoor unit.
However if outdoor work is difficult it is possible
instead to make changes to the procedure.
For example by making adjustments to the wiring
and piping length on the inside
(rather than the outside).
..................... 41 to 80 m
A C
Outdoor
D
unit
E
B