Condenser Installation Manual

En-3
CAUTION
Outdoor unit capacity
MINIMUM CIRCUIT
AMPACITY
MAX. CKT. BKR.
9 11.5 A 15 A
12 13.8 A 15 A
18 18.1 A 20 A
• Before starting work check that power is not being supplied to all poles of the indoor
unit and outdoor unit.
• Install all electrical works in accordance to the national standard.
• Install the disconnect device with a contact gap of at least 1/8 in (3 mm) in all poles
nearby the units. (Both indoor unit and outdoor unit)
• Install the circuit breaker nearby the units.
2.6. Additional charge
CAUTION
When adding refrigerant, add the refrigerant from the charging port at the completion
of work.
Refrigerant suitable for a piping length of 49 ft (15 m) [09, 12 model] or 66 ft (20 m)
[18 model] is charged in the outdoor unit at the factory.
When the piping is longer than 49 ft (15 m) [09, 12 model] or 66 ft (20 m) [18 model],
additional charging is necessary.
Enter the total refrigerant amount to the label a󰀩xed to the outdoor unit.
For the additional amount, refer to the following table.
Pipe length Model
49 ft
(15 m)
66 ft
(20 m)
82 ft
(25 m)
98 ft
(30 m)
Rate
Additional
refrigerant
9, 12 None
+ 4 oz
(+ 100 g)
– –
0.2 oz/ft
(20 g/m)
18 None None
+ 4 oz
(+ 100 g)
+ 7 oz
(+ 200 g)
0.2 oz/ft
(20 g/m)
Between 49 ft (15 m) [09, 12 model] or 66 ft (20 m) [18 model] and the maximum length,
when using a connection pipe other than that in the table, charge additional refrigerant
with 0.2 oz/ft (20 g/m) as the criteria.
* Refer to “Refrigerant pipe size and allowable piping length”.
Model Maximum amount of refrigerant charge
9 2 lbs 7 oz (2 lbs 3 oz + 4 oz) [1100 g (1000 g + 100 g)]
12 2 lbs 14 oz (2 lbs 10 oz + 4 oz) [1300 g (1200 g + 100 g)]
18 3 lbs 3 oz (2 lbs 12 oz + 4 oz) [1450 g (1250 g + 200 g)]
2.7. Operating range
Cooling mode
Dry mode
Heating mode
[Reverse cycle model only]
Outdoor
temperature
14 to 115 °F
(-10 to 46 °C)
-5 to 75 °F
(-21 to 24 °C)
• If this unit is operated outside the operating temperature, the protection circuits may be
activated to stop the unit.
3. INSTALLATION WORK
Make sure to obtain the customer’s approval for selecting and installing the outdoor unit.
3.1. Selecting an installation location
WARNING
• Securely install the outdoor unit at a location that can withstand the weight of the
unit. Otherwise, the outdoor unit may fall and cause injury.
• Be sure to install the outdoor unit as prescribed, so that it can withstand earthquakes
and typhoons or other strong winds. Improper installation can cause the unit to
topple or fall, or other accidents.
• Do not install the outdoor unit near the edge of a balcony. Otherwise, children may
climb onto the outdoor unit and fall o󰀨 of the balcony.
2.3. Pipe requirement
2.3.1. Protection of pipes
• Protect the pipes to prevent the entry of moisture and dust.
• Especially, pay attention when passing the pipes through a hole or connecting the end
of a pipe to the outdoor unit.
Location Working period Protection method
Outdoor
1 month or more Pinch pipes
Less than 1 month Pinch or tape pipes
Indoor - Pinch or tape pipes
2.3.2. Refrigerant pipe size and allowable piping length
CAUTION
• Keep the piping length between the indoor unit and outdoor unit within the allowable
tolerance.
• The maximum lengths of this product are shown in the table. If the units are further
apart than this, correct operation cannot be guaranteed.
Model 9, 12 18
Pipe diameter <Liquid/Gas> [in (mm)]
1/4 (6.35) /
3/8 (9.52)
1/4 (6.35) /
1/2 (12.70)
Max. piping length (L) [ft (m)] 66 (20) 98 (30)
Max. height difference (H)
<Indoor unit to outdoor unit> [ft (m)]
49 (15)
View (Example)
H
L
2.4. Power source
WARNING
• Always use a special branch circuit and install a special receptacle to supply power
to the room air conditioner.
• Use a circuit breaker and receptacle matched to the capacity of the air conditioner.
• Install a leakage circuit breaker in accordance with the related laws and regulations
and electric company standards.
• The circuit breaker is installed in the permanent wiring. Always use a circuit that can
trip all the poles of the wiring and has an isolation distance of at least 1/8 in (3 mm)
between the contacts of each pole.
CAUTION
• The power source capacity must be the sum of the air conditioner current and
the current of other electrical appliances. When the current contracted capacity is
insu󰀩cient, change the contracted capacity.
• When the voltage is low and the air conditioner is di󰀩cult to start, contact the power
company the voltage raised.
2.5. Electric requirement
CAUTION
• Be sure to install a breaker of the specied capacity.
• Regulation of cables and breaker di󰀨ers from each locality, refer in accordance with
local rules.
Voltage rating 1 ø 208/230 V (60 Hz)
Operating range 187-253 V
Cable Type Remarks
Power supply cable 14 AWG
2 cable + Ground (Earth),
1 ø 208/230 V
Connection cable
Refer to the installation manual of the indoor unit for the
connection cable specications.
Select the correct cable type and size according to the country or region’s regulations.
Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the wire
diameter when the wire length is long.
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