Brochure
20
RAC Multi System Outoor Units
RAC Multi System
Weekly
Timer
System
Controller
Filter sign
Auto
Restart
Fresh
Air intake
Branch
Extension
Drain
Pump
Low
Ambient
Operation
Elect.Valve
ODP=0
Refrigerant
Quiet
Anti-
microbial
Filt.
Blue Fin
CU-2S18NBU-1 & CU-2E18NBU-Cooling
CU-2E18NBU-Heating
*For CS-S12NKUW-1/CS-E12NKUAW, the pipe size reducer CZ-MA1P must be used when connecting with multi-zone outdoor unit.
Model No. CU-2S18NBU-1 CU-2E18NBU
Performance Cooling Cooling Heating
Capacity Btu/h 16,700 16,700 20,200
Air Circulation High CFM 1,313 1,313
Number of Connectable Indoor Units 2 2
SEER Cooling 18.0 18.0
EER Cooling 11.5 11.5
HSPF Heating --- 8.8
Electrical Rating
Power Supply V, Phase, Hz 230V / 208V, 1PH, 60Hz 230V / 208V, 1PH, 61Hz
Running Ampere A 6.9 / 7.6 6.9 / 7.6 8.1 / 9.0
Power Input W 1,450 1,450 1,850
Maximum Fuse Size Amps 25 25
Features
Controls Microprocessor Microprocessor
Fan Speeds Auto Auto
Compressor DC Inverter DC Inverter
Refrigerant / Amount Charged at Shipment R-410A / 67.8 Oz R-410A / 67.80 Oz
Refrigerant Control Electric Expansion Valve Electric Expansion Valve
Operation Sound Hi dB-A 48 48 49
Refrigerant Tubing Connections Type Flare Flare
Max. Allowable Tubing Length Ft. Max.164 (82’per unit) Max.164 (82’per unit)
Refrigerant Tube
Diameter
Narrow Tube inch 1/4” 1/4”
Wide Tube inch 3/8” 3/8”
Dimensions & Weight
Unit Dimensions H x W x D inch 31-5/16” x 34-15/32”(+3-3/4) x 12-5/8” 31-5/16” x 34-15/32”(+3-3/4) x 12-5/8”
Net Weight Lbs. 152 152
CU-2S18NBU-1 / CU-2E18NBU
For Rooms
2
Cooling Capacity(BTU/h) Input Power (W)
Current, 208V (A) Current, 230V (A)
Moisture Removal Volume
pt/h
Indoor unit combinations Room A Room B Total min ~ max Rating min ~ max
1 Room
CS-S9NKUW-1 / CS-E9NKUAW 9,600 --- 9,600 6,200 ~ 11,200 850 390 ~ 1,020 4.5 4.1 1.1
CS-S12NKUW-1* / CS-E12NKUAW* 10,900 --- 10,900 6,300 ~ 12,800 1,000 390 ~ 1,230 5.2 4.7 1.3
2 Room
CS-S9NKUW-1 / CS-E9NKUAW +
CS-S9NKUW-1 / CS-E9NKUAW
8,350 8,350 16,700 7,100 ~ 20,000 1,450 390 ~ 1920 7.6 6.9 1.1 + 1.1
CS-S9NKUW-1 / CS-E9NKUAW +
CS-S12NKUW-1* + CS-E12NKUAW*
7,800 8,900 16,700 7,200 ~ 20,000 1,450 390 ~ 1,870 7.6 6.9 1.1 + 1.3
CS-S12NKUW-1* / CS-E12NKUAW*
+
CS-S12NKUW-1* / CS-E12NKUAW*
8,350 8,350 16,700 7,200 ~ 20,000 1,450 390 ~ 1,840 7.6 6.9 1.3 + 1.3
Heating Capacity(BTU/h) Input Power (W)
Current, 208V (A) Current, 230V (A)
Moisture Removal Volume
pt/h
Indoor unit combinations Room A Room B Total min ~ max Rating min ~ max
1 Room
CS-E9NKUAW 13,700 --- 13,700 6,400 ~ 15,700 1,150 440 ~ 1,450 5.9 5.4 ---
CS-E12NKUAW 15,300 --- 15,300 6,500 ~ 17,500 1,300 440 ~ 1,630 6.6 6.0 ---
2 Room
CS-E9NKUAW + CS-E9NKUAW 10,100 10,100 20,200 7,100 ~ 24,600 1,850 420 ~ 2,310 9.0 8.1 ---
CS-E9NKUAW + CS-E12NKUAW* 9,400 10,800 20,200 7,200 ~ 24,600 1,850 420 ~ 2,290 9.0 8.1 ---
CS-E12NKUAW* + CS-E12NKUAW* 10,100 10,100 20,200 7,200 ~ 24,600 1,850 420 ~ 2,290 9.0 8.1 ---










