Additional Charging; Power - Fujitsu R410A Installation Manual

(12) Remove the blank caps, and fully open the spindles of the 2-way and 3-way
valves with a hexagon wrench.
[torque : 6 to 7 N·m (53 to 62 lbf·in)].
(13) Tighten the blank caps and charging port cap of the 2-way valve and 3-way valve
to the specified torque.
6.35 (1/4)
9.52 (3/8)
Blank cap
12.70 (1/2)
15.88 (5/8)
19.05 (3/4)
Charging port cap [N·m (lbf·in1)]
Hexagon wrench
Charging port
Service hose
with valve core
Service hose
with valve core
Service hose
with valve core
Service hose
with valve core
Gauge manifold
Lo Hi
Service hose
Do not purge the air with refrigerants, but use a vacuum pump to vacuum the
installation! There is no extra refrigerant in the outdoor unit for air purging!
Use a vacuum pump and gauge manifold and charging hose for R410A exclusively.
Using the same vacuum for different refrigerants may damage the vacuum pump or
the unit.
9374747115_IM_En.indd 10
Tightening torque [N·m (lbf·in1)]
20 to 25 (177 to 221)
20 to 25 (177 to 221)
28 to 32 (248 to 283)
30 to 35 (266 to 310)
35 to 40 (310 to 354)
10 to 12 (89 to 106)
Blank cap
Spindle
Cap
Vacuum pump
CAUTION
61 21

Additional charging

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.
Total piping
50 (164) 60 (197)
length [m (ft)]
Additional
None
refrigerant (8.8 oz)
CAUTION
When moving and installing the air conditioner, do not mix gas other than the specified
refrigerant (R410A) inside the refrigerant cycle.
When charging the refrigerant R410A, always use an electronic balance for refrigerant
charging (to measure the refrigerant by weight).
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 composition is stable.
Add refrigerant from the charging valve after the completion of the work.
If the units are further apart than the maximum pipe length, correct operation cannot
be guaranteed.
71

POWER

WARNING
The rated voltage of this product is 208/230 V A.C. 60 Hz.
Before turning on verify that the voltage is within the 187 V to 253 V range.
Always use a special branch circuit and install a special receptacle to supply power to
the air conditioner.
Use a special branch circuit breaker and receptacle matched to the capacity of the air
conditioner. (Install in accordance with standard.)
Perform wiring work in accordance with standards so that the air conditioner can be
operated safely and positively.
Install a leakage special branch circuit breaker in accordance with the related laws
and regulations and electric company standards.
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 insuf-
ficient, change the contracted capacity.
When the voltage is low and the air conditioner is difficult to start, contact the power
company the voltage raised.
70 (230)
250 g 500 g 25 g/m
(17.6 oz) (0.27 oz/ft)
Gas
R410A
Liquid
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20/12/2553 8:58:52