Toshiba RAS-M10PKVP-E Service Manual page 82

10-4-5. Installation
NOTE
For installation, at least 3 dimensions should be kept
free from obstacles (walls).
Necessary space for installation
NOTE
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)
or more
Fig. 10-4-2
Side view (Unit: mm)
150
or more
Fig. 10-4-3
Fixing bolt arrangement of outdoor unit
NOTE
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.
150 300
or more
1000
or more
Suction side
Diffuser
1. Piping connections to the outdoor unit should be
arranged in the sequence A, B, C 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 connected
to the outdoor unit incorrectly are very common in
multiple-unit installations.)
3. The length and height difference of the connecting
pipes between the indoor and outdoor units must be
within the ranges indicated below.
• Total piping length :
Non. Additional refrigerant.......................... 40 m
Additional refrigerant................................... 70 m
Additional 20 g of refrigerant ..... Per every 1 m
• Minimum piping length :
A or B or C = 3 m or more
• Maximum indoor piping length :
A or B or C = 25 m or less
• Maximum piping height difference :
A or B or C = 15 m or less
• Maximum piping / height difference between
2 units = 15 m or less
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 manufactured
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).
– 82 –
........................... 41 to 70 m
Outdoor
unit
Fig. 10-4-5