Connecting Indoor Units - Technibel MCAF94MR5IAA Technical & Service Manual

●
install in a sturdy manner to avoid increased
operating noise.
●
install the unit within the maximum elevation
difference (H1, H2, H3, H4) above or below the
outdoor unit and within a total tubing length (L1+L2,
L1+L2+L3, L1+L2+L3+L4) from the outdoor unit as
detailed in Table 1 and Fig. 3a.
Table 1
Max. Allowable Tubing
Model
Length per unit
(Outdoor unit)
GRF194MR5IAA
GRF244MR5IAA
GRF314MR5IAA

7-2. Connecting Indoor Units

(1) Connecting indoor unit types (9- 12 - 18) for GRF194MR5IAA
Note: It is not possible to connect the outdoor unit for 2 rooms to indoor unit type 70.
(A)
(B)
Limit of Total Tubing
Length (L1+L2), (L1+L2+L3)
(m) or (L1+L2+L3+L4) (m)
25
25
30
Outdoor unit
A
φ9.52
B
φ9.52
Flare φ9.52 Union φ12.7
A joint for connecting tubes of
different sizes
(φ9.52 → φ12.7)
Outdoor unit
A
φ9.52
φ6.35
B
φ9.52
φ9.52
(Less than 17 m)
INDOOR
UNIT (1)
Elevation
difference (H1)
H4 INDOOR
UNIT (4)
Limit of Elevation
Difference (H)
35 (L1+L2)
50 (L1+L2+L3)
70 (L1+L2+L3+L4)
For stable operation of the
air conditioner, do not
install wall-mounted type
indoor units less than 1.5 m
from floor level.
φ6.35
φ9.52
φ6.35
φ12.7
(More than 17 m)
Union φ12.7
(φ12.7 → φ9.52)
Fig. 4a
φ6.35
φ9.52
(50 type)
Fig. 4b
22
Tubing length (L1)
L2
OUTDOOR
UNIT
L3
L4
Fig. 3a
(m)
10
10
10
CAUTION
Minimum height
from floor level
Indoor unit
(9-12 types)
(18 type)
Flare φ9.52
Indoor unit
(28 - 36 types)
INDOOR
UNIT (2)
H2
INDOOR
H3
UNIT (3)
Indoor unit
Wall
1.5 m
Floor level
Fig. 3b