6
Item Unit OUTDOOR UNIT
Air Volume High m
3
/min (ft
3
/min) 37.2 (1313)
Refrigerant Control Device Expansion Valve
Refrigerant Oil FV50S
Refrigerant (R410A) g (oz) 1.92k (67.8)
Dry Bulb Wet Bulb
Maximum °C (°F) 32 (89.6) 23 (73.4)
Cooling
Minimum °C (°F) 16 (60.8) 11 (51.8)
Maximum °C (°F) 30 (86.0) —
Indoor Operation Range
Heating
Minimum °C (°F) 16 (60.8) —
Maximum °C (°F) 43 (109.4) 26 (78.8)
Cooling
Minimum °C (°F) 16 (60.8) 11 (51.8)
Maximum °C (°F) 24 (75.2) 18 (64.4)
Outdoor Operation Range
Heating
Minimum °C (°F) -15 (5.0) -16 (3.2)
Note
Specifications are subject to change without notice for further improvement.
Multi split combination possibility:
o A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E18NBU.
Outdoor Unit
CU-2E18NBU
A B
2.8 kW CS-E9NKUAW
• •
Wall
3.2 kW CS-E12NKUAW
• •
Capacity range of connectable indoor units From 5.6 kW to 6.4 kW
1 room maximum pipe length (m (ft)) 25 (82.0)
Allowable elevation (m (ft)) 15 (49.2)
Total allowable pipe length (m (ft)) 50 (164.0)
Total pipe length for maximum chargeless length (m (ft)) 20 (65.6)
Piping Length
Additional gas amount over chargeless length (g/m (oz/ft)) 20 (0.2)
Note: “
•” : Available
Remarks for CU-2E18NBU
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor untis that will be connected to outdoor unit must be within connectable capacity range of
indoor unit.
(as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-2E18NBU. (Total nominal capacity of indoor units is between
5.6 kW to 6.4 kW)
1) Two CS-E9NKUAW only. (Total nominal cooling capacity is 5.6 kW)
2) One CS-E9NKUAW and one CS-E12NKUAW. (Total nominal cooling capacity is 6.0 kW)
Specifications are subject to change without notice for further improvement.
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