DC
(kg)
11.8 11.8 11.8
DC
(kg)
11.8 11.8
System Limitations
3
135 kW (48 hp)
40 *1
1:
2:
3:
The outdoor connection main tubing (LO portion) is determined by the total capacity of the outdoor units that
are connected to the tube ends.
If the longest tubing length (L1) exceeds 90 m (equivalent length), increase the sizes of the main tubes (LM) by
1 rank for the discharge tubes, suction tubes, and narrow tubes. (field supplied)
If the longest main tube length (LM) exceeds 50 m, increase the main tube size at the portion before 50 m by 1
rank for the suction tubes and discharge tubes. (field supplied)
(For the portion that exceeds 50 m, set based on the main tube sizes (LA) listed in the table on the following
page.)
Refrigerant Charge Amount at Shipment (for outdoor unit)
SPW-C0705DZH8 SPW-C0905DZH8 SPW-C1155DZH8
SPW-C1305DZH8 SPW-C1405DZH8
Additional Refrigerant Charge
Max. No. allowable connected outdoor units
Max. capacity allowable connected outdoor units
Max. connectable indoor units
Max. allowable indoor/outdoor capacity ratio 50 – 130 %
NOTE
*1: In the case of 22 hp (type 2205) or smaller units, the number is limited by the total capacity of the connected
indoor units.
Additional refrigerant charge amount is calculated from the liquid tubing total length as follows.
*Always charge accurately using a scale for weighing.
Liquid tubing size 6.35 9.52 12.7 15.88 19.05 22.22
Amount of additional
refrigerant charge/m (g/m)
26 56 128 185 259 366
SPW-C0705DZH8 SPW-C0905DZH8 SPW-C1155DZH8 SPW-C1305DZH8 SPW-CR1405DZH8
3.2 kg 3.2 kg
Required amount of additional refrigerant charge = [ (Amount of additional refrigerant charge per meter of each size of liquid
tube × its tube length) + (...) + (...)] + [(Necessary amount of additional refrigerant charge per outdoor unit + (...) + (...)]
Amount of Additional Refrigerant Charge Per Meter, According to Liquid Tubing Size
Necessary Amount of Additional Refrigerant Charge Per Outdoor Unit
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