(2) Calculation of the Additional Refrigerant Charge
Additional Refrigerant Charge=
Length of Liquid Pipe
¶
0.375×54+
Length of Liquid Pipe
¶
0.25×22)-880
The
largest
additional refrigerant charge value is 800g.
This
means if the calculated value exceed
s
800g, the
additional refrigerant charge takes 800g, while the calculated value
takes
less than 800g, the additional refrigerant charge
takes the calculated value.
4.4 Electric Wiring
4.4.1 Wiring precautions
(1) The installation must be done in accordance with the national wiring regulations.
(2) Only
a
power cord with the rated voltage and exc lusive circuit for the air conditioning can be used.
(3) Do not pull the power cord
forcefully.
(4) The electric installation should be
performed
by
a
technician instructed
in
the local laws, regulations
and this manual.
(5) The diameter of the power cord should be large enough
for the unit.
If the cord
is damaged
,
it must be replaced by the
dedicated one.
(6) The
ground should be firm
and the earth wire should be connected to the dedicated device of the building
by the technician.
The
air switch coupled with the leakage current protection switch must be equipped
and have
enough capacity
in
both
the
magnetic and thermal tripping functions in case of the short circuit and overload.
Table 8
Models
Power Supply
Capacity of the air Switch
˄
A
˅
Recommended Cord
˄
pieces
×
sectional area
˅
208/230V~60Hz
32
3
×
0.0062 sq in
208/230V~60Hz
32
3
×
0.0062 sq in
208/230V~60Hz
32
3
×
0.0062 sq in
INDOOR UNIT D
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
XT3
N(1)
N(1)
XT4
N(1)
XT2
XT1
2 3
PE
XT
N(1)
OUTDOOR UNIT
POWER
L
1
L2
L2
L
1
2 3
2 3
2 3
N(1) 2 3
N(1) 2 3
N(1) 2 3
N(1) 2 3
PE
PE
PE
PE
Fig 11
38GJQF30---3
38GJQG36---3
38GJQG42---3
38GJQF30---3
15