Airwell EFL 100-3R410, Техническое руководство, Страница: 15 / 328

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Design of 3-WAY FLOW LOGIC
1. Model Selecting and Capacity Calculator
Refrigerant Charge Amount at Shipment (for outdoor unit)
DC
EFL 80-3R410 EFL 100-3R410 EFL 120-3R410
(kg)
12.0 12.0 12.0
DC
EFL 120-3R410 EFL 160-3R410
(kg)
15.0 15.0
System Limitations
Max. No. allowable connected outdoor units 3
*2
Max. capacity allowable connected outdoor units 135 kW (48 hp)
Max. connectable indoor units 40
*1
Max. allowable indoor/outdoor capacity ratio 50 – 130 %
Additional Refrigerant Charge
Additional refrigerant charge amount is calculated from the narrow tubing total length as follows.
Amount of Refrigerant Charge Per Meter, According to Narrow Tubing Size
Narrow tubing size Amount of refrigerant
charge/m (g/m)
φ
6.35 26
φ
9.52 56
φ
12.7 128
φ
15.88 185
φ
19.05 259
φ
22.22 366
Required amount of charge = (Amount of refrigerant
charge per meter of each size of narrow tube
×
its tube
length) + (...) + (...)
*Always charge accurately using a scale for weighing.
1: The outdoor connection main tubing (LD portion) is determined by the total capacity of the outdoor units that
are connected to the tube ends.
2: 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.
3: 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.
(For the portion that exceeds 50 m, set based on the main tube sizes (LA) listed in the table on the following
page.)
NOTE
*1: In the case of 22 hp (type 2054) or smaller units, the number is limited by the total capacity of the connected
indoor units.
*2: Up to 4 units can be connected if the system has been extended. However, the following combinations are not
possible.
44 horse power (14+14+8+8)
46 horse power (16+14+8+8, 16+12+10+8, 16+10+10+10, 14+14+10+8)
48 horse power (16+16+8+8, 16+14+10+8, 16+12+12+8, 16+12+10+10, 14+14+12+8, 14+14+10+10)
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