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1-5. Additional Materials Required for Installation
(1) Refrigeration (armored) tape
(2) Insulated staples or clamps for connecting wire
(See local codes)
(3) Putty
(4) Refrigeration lubricant
(5) Clamps or saddles to secure refrigerant tubing
2. Installation Site Selection
2-1. Indoor Unit
To prevent abnormal heat genera-
WARNING
tion and the possibility of fire, do
not place obstacles, enclosures
and grilles in front of or sur-
rounding the air conditioner in a
way that may block air flow.
AVOID:
direct sunlight.
nearby heat sources that may affect performance of the
unit.
areas where leakage of flammable gas may be expected.
places where large amounts of oil mist exist.
DO:
select an appropriate position from which every corner of
the room can be uniformly cooled.
select a location that will hold the weight of the unit.
select a location where tubing and drain hose have the
shortest run to the outside.
allow room for operation and maintenance as well as
unrestricted air flow around the unit.
install the unit within the maximum elevation difference
(H1, H2, H3) above or below the outdoor unit and within
a total tubing length (L1+L2, L1+L2+L3) from the outdoor
unit as detailed in Table 3 and Fig. 1.
Table 3
Max. Allowable Tubing
Model
Length per unit
GRF194MR5IAA
GRF244MR5IAA
NOTE
This outdoor unit requires no refrigerant charge up to the maximum limit for total tubing
length of 35 m (GRF194MR5IAA) or 50 m (GRF244MR5IAA).
Therefore, no refrigerant needs to be added on-site.
Limit of Total Tubing
Length (L1+L2) or
(m)
(L1+L2+L3) (m)
25
* 35 (L1+L2)
25
* 50 (L1+L2+L3)
3
Tubing length (L1)
INDOOR
UNIT (1)
L2
Elevation
OUTDOOR
difference (H1)
UNIT
L3
Fig. 1
Limit of Elevation
Difference (H1, H2, H3)
(m)
10
10
INDOOR
UNIT (2)
H2
H3
INDOOR
UNIT (3)
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