269
FDTN-H
Example of additional charge amount calculation
Calculate the additional charge amount for the model FDTN508HES when the piping length is 25 m.
(25
-
5)
×
0.035
=
0.70
Additional charge amount (kg)
Additioanl charge amount per 1 m (kg/m)
Length that additional refrigerant charge is not required (m)
Total length of the piping (one way) (m)
Additional charge amount of refrigerant = 0.70 kg (Calculate the amount in any case.)
(3)
The unit is holding charge type that all of the refrigerant is charged in the outdoor unit and in the indoor unit only a
small amount of gas is filled for prevention of the air entry.
(4)
In the case of FDR408H and FDU408H, it is 1.60 kg.
(5)
In the case of FDR408H and FDU408H, it is 0 m.
(6)
In the case of FDU408C, it is 1.55 kg.
(7)
In the case of FDU408C, it is 0 m.
(8)
In the case of FDKN208 and FDKN308, it is 10 m.
(3)
Electric wiring
•
This air conditioning system should be notificated to supply authority connection to power supply system.
(a)
Selection of size of power supply and interconnecting wires.
Precautions for Electric wiring
•
Electric wiring work should be conducted only by authorized personnel.
•
Do not connect more than three wires to the terminal block. Always use round type crimped terminal lugs with insulated
grip on the ends of the wires.
•
Use copper conductor only.
•
Power source wires and interconnecting wires shall not bo lighter than polychloroprene shcathcd fiexible cord
(design H05RN-F IEC57).
Select wire sizes and circuit protection from table below. (This table shows 20 m length wires with less than 2% voltage drop.)
O
WARNING
DANGER OF BODILY INJURY OR DEATH
TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE
BEFORE MAKING ANY ELECTRIC CONNECTIONS.
GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE
VOLTAGE CONNECTIONS.
Item
Circuit breaker
Model
FDC206 type
1
20
FDC256 type
5.5mm
2
FDC306EN type
30
8 mm
2
FDC306ES type
30
15
φ
1.6 mm
φ
1.6 mm
FDC406 type
3
20
φ
2.0 mm
FDC506 type
5.5 mm
2
FDC506EM type
30
8 mm
2
(b)
Wiring connection
Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by
1
and
2
terminals.
3) 3 phase three-wire model
1) 1 phase model
2) 3 phase four-wire model
Power source wire size
(minumum)
Interconnecting and
grounding wires
(minimum)
Overcurrent Protector
rated capacity (A)
Switch breaker
(A)
Phase
Outdoor
unit
Indoor
unit
Circuit breaker
Earth leakage
breaker
HIGH VOLTAGE
TB
1
TB
2
TB
Outdoor
unit
Indoor
unit
Circuit breaker
Earth leakage
breaker
HIGH VOLTAGE
TB
1
TB
2
TB
Outdoor
unit
Indoor
unit
Circuit breaker
Earth leakage
breaker
HIGH VOLTAGE
TB
1
TB
2
TB
Interconnecting wires
Interconnecting wires
Interconnecting wires
Note (1) The diagram above is for models equipped with heat pumps. Cooling only units do not have TB2 (4), (5).
Содержание FDT208HEN-S
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