Haier AD142AMBAA [25/35] Installation manual for outdoor unit

Haier AD182AMAAA [25/35] Installation manual for outdoor unit
INSTALLATION MANUAL FOR OUTDOOR UNIT
24
Basic refrigerant
charge amount
(i)
1.85
Factory charge amount
of refrigerant
1.93
Outdoor unit Intdoor unit
0
(Holding
charged)
0.018
5m
20m
Additional
charge
amount
(ii)
per meter
Length that
additional
charge is
not required
Maximum
piping
length
Note: When extending refrigerant piping, first purge air out of connecting pipe by external gas, then drive
out the excessive refrigerant by purging method.
Brand new unit is charged 100g more refrigerant than spec. This is only for first installation to
purge air in the indoor unit and connecting pipe.
When piping is longer than 5m, charge additional refrigerant specified in this list.
Pipe length
Refrigerant charge (g)
5m 10m
90
15m
180
Additional charge of refrigerant
Outdoor unit is precharged at a factory for the piping length up to 5m. Additional charge is not required
up to 5m.
Notes: (i) Basic refrigerant charge amount means refrigerant amount when refrigerant piping length is 0m.
(ii) When the refrigerant piping length exceeds the length that additional refrigerant charge is not
required, charge additional refrigerant based on to the calculated amount of refrigerant per unit
piping length.
Calculate the additional charge amount when the piping lentth is 15m.
Example of additional charge amount calculation
(15-5)*0.018=0.18
Additional charge amount (kg)
Additional charge amount per 1m (kg/m)
Length that additional refrigerant charge is not required (m)
Total length of the piping (one way) (m)
Additional charge amount of refrigerant=0.18kg (Calculate the amount in any case.)
(iii) 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.

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