Unit installation

3
POWER
WARNING
1 The rated voltage of this product is 208/230 V A.C. 60 Hz.
2 Before turning on verify that the voltage is within the
187 V to 253 V range.
3 Always use a special branch circuit and install a spe-
cial receptacle to supply power to the air conditioner.
4 Use a special branch circuit breaker and receptacle
matched to the capacity of the air conditioner.
(Install in accordance with standard.)
5 Perform wiring work in accordance with standards so
that the air conditioner can be operated safely and posi-
tively.
6 Install a leakage special branch circuit breaker in ac-
cordance with the related laws and regulations and
electric company standards.
CAUTION
1 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
insufficient, change the contracted capacity.
2 When the voltage is low and the air conditioner is diffi-
cult to start, contact the power company the voltage
raised.
6. ADDITIONAL CHARGE
Refrigerant suitable for a total piping length of 164 ft is charged in the
outdoor unit at the factory.
When the piping is longer than 164 ft, additional charging is necessary.
For the additional amount, see the table below.
50 m 60 m 70 m
(164 ft) (197 ft) (230 ft)
None
250 g 500 g 25 g/m
(8.8 oz) (17.6 oz) (0.9 oz/ft)
Total piping
length
Additional
refrigerant
CAUTION
1 After connecting the piping, check the all joints for gas
leakage with gas leak detector.
2 When inspecting gas leakage, always use the vacuum
pump for pressure. Do not use nitrogen gas.
7. GAS LEAKAGE INSPECTION
Gas
Liquid
CAUTION
1 When moving and installing the air conditioner, do not
mix gas other than the specified refrigerant (R410A)
inside the refrigerant cycle.
2 When charging the refrigerant R410A, always use an
electronic balance for refrigerant charging (to meas-
ure the refrigerant by weight).
3 When charging the refrigerant, take
into account the slight change in the
composition of the gas and liquid
phases, and always charge from the
liquid phase side whose composi-
tion is stable.
4 Add refrigerant from the charging valve after the com-
pletion of the work.
5 If the units are further apart than the maximum pipe
length, correct operation can not be guaranteed.
R410A