Installation manual

38GL_M…G / 38YY(S)_M…G
R-410A
GB - 5
ENGLISH
Table III: Operating limits
(1)
Cooling (2) Outdoor temperature °C Indoor temperature °C
Applicable
d.b. w.b. d.b. w.b.
Maximum conditions
43 – 32 23 All multisplit units
38GL2M12G
21
(3)
– 21 15 38GL2M18G; 38GL2M24G; 38GL3M21G
Minimum conditions
38GL4M24G
15 – 21 15 38GL2M36G
(4)
; 38GL2M48G
(4)
;
38YY2M18G; 38YY2M36G;38YY2M48G;
38YY2M21G;38YY2M24G.
-10 – 21 15 38YYS2M36G;38YYS2M48G.
Heating
(2)
Maximum conditions
24 18 27 – All heat pump
Minimum conditions
-15 -17 20 – multisplit units
Notes:
(1)
Data referred to the outdoor unit only.
(2)
According to prEN 14511-5.
(3)
Thanks to the high pressure regulation kit, the unit can also be
used with outdoor temperatures up to +10°C (see table V
"Accessories" for kit availability).
(4)
Thanks to the high pressure regulation kit, the unit can also be
used with outdoor temperatures up to -10°C (see table V
"Accessories" for kit availability).
d.b. - dry bulb ; w.b. - wet bulb
WARNING:
During heat pump operation unit will undergo several defrost cycles to
eliminate ice that might possibly collect on the outdoor unit in very low
ambient temperatures.
In these cycles, fan speed will automatically reduce and cannot be
varied until defrost cycle is completed.
Operating limits and system charge
Heat Refrigerant Extra charge
pump charge Suitable up to for
Extra charge (g) for no. 1 indoor unit
models for compressor (m) compressor Hi-Wall Console Cassette Satellite
circuit (g) circuit (g/m) 42PHQ-N 42HMC-N 42VMC-N 42KMC-N 40SMC-N
38YY2M18G 700 8 for each circuit 15 - - - - -
38YY2M21G 850 8 for each circuit 15 - - - - 50
(note 3)
38YY2M24G 870 8 for each circuit 15 - - - - 50
38YY(S)2M36G 1400 8 for each circuit 20 - - - - -
38YY(S)2M48G 1580 8 for each circuit 20 - - 370 - -
Note 1: A1 and A2 are connected to the same compressor.
Note 2: Side compressor A only (A1 and A2 are connected to the same compressor).
Note 3: Side compressor B only.
Cooling
Refrigerant Extra charge
charge Suitable up to for
Extra charge (g) for no. 1 indoor unit
only
for compressor (m) compressor
Hi-Wall Console Cassette Satellite
models
circuit (g) circuit (g/m)
H2PHQ-N 42HMC-N 42VMC-N 42KMC-N 40SMC-N
38GL2M12G 1130(A1+A2) 15 (L1+L2) - - - - - 50
Note 1
38GL2M18G 670 8 for each circuit 15 - - - - 70
38GL2M24G 760 8 for each circuit 15 - - - - 70
38GL2M36G 1300 8 for each circuit 15 - - - - -
38GL2M48G 1370 8 for each circuit 15 - - 40 - 150
900 (A1+A2) / 15 (L1+L2) / 50
Note 2
/
38GL3M21G
600 (B) 8 (L3)
15
Note 3
----
70
Note 3
860 (A1+A2) / 15 (L1+L2) /
38GL4M24G
860 (B1+B2) 15 (L3+L4)
- - - - - 100
(with connection pipes use as few elbows as possible)
Table IV: System charge