Manufacturer: Kuwana Metals, Ltd.
Model : W Series

Features

Supply Temperature Range

The supply temperature refers to the chilled water outlet temperature of the Chilled Tower.

Main Applications

① Cooling for Production Equipment 

• Laser oscillators
• Electric diffusion furnaces
• Sputtering equipment
• Ultrasonic cleaning machines
• Electron microscopes
• Precision polishing machines
• High-frequency induction furnaces
• Various electric furnaces
• Paper rolls
• Flour milling rolls
• Die-casting molds
• Electric automatic welding machines
• Reaction towers
• Wastewater temperature pollution prevention
• Cooling equipment for paint tanks

② Air Conditioning (Year-Round Cooling) 

• Data centers
• Clean rooms
• Factory air conditioning

③ Cooling for Research Facility Equipment 

• Laser oscillators
• Various research equipment

Structural Diagram

Standard Component Materials

Category	Part Name	Material
Main Tower & Exterior	Louver	Aℓ(Surface Treated)
	Platform	Checkered Steel Plate + Hot-Dip Galvanized Coating
	Lower Exterior Plate	Highly Corrosion-Resistant Hot-Dip Galvanized Steel Plate
	Bottom Plate	Highly Corrosion-Resistant Hot-Dip Galvanized Steel Plate
	Frame Material	Lightweight Shaped Steel with Hot-Dip Galvanized Coating
Water Distribution Section	Water Distribution Tank	FRP
	Water Distribution Pipe	PVC
	Water Collection Tank	FRP
	Pump	SUS Centrifugal Pump
Fan Section	Fan	PPG
	Casing	Steel Plate with Hot-Dip Galvanized Coating
	Protective Wire Mesh	Steel Wire Mesh with Hot-Dip Galvanized Coating
	Motor	Totally Enclosed Outdoor Type

Category	Part Name	Material
Chilled Water System	Eliminator	PVC
	Cooling Coil	Seamless Deoxidized Copper Tube
	Chilled Water Piping	SUS304
	Water Cooler (Evaporator)	SUS316
	Valves & Fittings	SUS・BC・PVC
Others	Ladder	Steel (Hot-Dip Galvanized Coating)
	Bolts & Nuts	Steel (Zinc-Coated) & Stainless Steel (SUS)
Exterior color	Lower Machinery Room Panel : Silver (Highly Corrosion-Resistant Galvanized Steel Plate) Upper Louver : Silver (Aluminum) Blower : Silver-White (Hot-Dip Galvanized Coating, etc.)

Specifications

Item (Unit)		Model
		CTS-202W1	CTS-302W1	CTS-402W1	CTS-502W1
Performance ※1	Inlet Temperature 20°C (Cooling Capacity): kW	68.6/80.2	102.3/120.3	136.6/160.5	164.0/191.9
	Outlet Temperature 15°C (Chilled Water Flow Rate): m³/h	11.8/13.8	17.6/20.7	23.5/27.6	28.2/33.0
	Inlet Temperature 25°C (Cooling Capacity): kW	80.2/92.1	120.3/138.1	160.5/184.2	191.9/223.3
	Outlet Temperature 20°C (Chilled Water Flow Rate): m³/h	13.8/15.8	20.7/23.8	27.6/31.7	33.0/38.4
	Inlet Temperature 35°C (Cooling Capacity): kW	144.2/153.5	215.1/230.2	287.2/307.0	331.4/359.3
	Outlet Temperature 25°C )Chilled Water Flow Rate): m³/h	12.4/13.2	18.5/19.8	24.7/26.4	28.5/30.9
	Chilled Water Flow Range (Minimum to Maximum) → m³/h	6～18	9～27	12～36	15～45
	Internal Pressure Loss Loss (Flow Rate) : kPa (at m³/h)	87 (12)	87 (18)	87 (24)	87 (30)
Legal Refrigeration Capacity : Tons		5.78/6.88	8.67/10.32	11.56/13.76	14.45/17.20
High-Pressure Gas Applicable Safety Law Classification) ※3	50Hz	No Manufacturing Notification Required
	60Hz
Exterior		Inspection Panel, Louver: Anodized Aluminum Treatment, Main Frame, Fan, Ladder: Hot-Dip Galvanized Coating
External Dimensions	Width [W](mm)	2,200+215 (Control Panel)
	Depth [D] (mm)	2,200
	Height to Shoulder [H] (mm)	2,053	2,393	2,733	3,074
	Fan Height [h] (mm)	536
	External Diagram	A
Fan	Model Type	Axial Fan (V-Belt Drive Type)
	External Dimensions : mm	1200
	Motor Output : kW (Number of Poles) × Number of Units	3.7 (6) ×1		5.5 (6) ×1
Spray Pump	Model Type	Stainless steel centrifugal pump
	Motor Output : kW (Number of Poles) × Number of Units	0.75 (2) ×1
Compressor	Model Type	Scroll-type fully enclosed electric compressor
	Motor Output : kW (Number of Poles) × Number of Units	7.5 (2) ×2	7.5 (2) ×3	7.5 (2) ×4	7.5 (2) ×5
Refrigerant Control System		Externally Equalized Thermostatic Expansion Valve
Protection Device		High-pressure protection switch, low-pressure protection switch, freeze prevention temperature switch, discharge gas overheat temperature switch, overcurrent relay
Type of Refrigerant		R407C
Chilled Water System Operating Pressure (Normal Use) (MPa)		Within 0.7″ or “0.7 or less
Spray Water Supply Volume ※4″ (m³/h)		0.3/0.3	0.5/0.5	0.6/0.7	0.7/0.8
Electrical Characteristics ※5	Power Consumption(kW)	21/25	28/34	38/46	46/56
	Operating Current(A)	76/81	103/112	137/148	163/178
Power Supply	Power Supply for Operation or Main Power Supply	AC3ϕ 200V 50/60Hz
	Control Power Supply	AC1ϕ 200V 50/60Hz
Piping Dimensions	Chilled Water Inlet/Outlet	65A JIS 10K Flange	80A JIS 10K Flange
	Make-up Water Inlet for Sprinkling	Rc 3/4
	Drain Connection Port	Rc 2
Product Weight (Operating Weight) (kg)		2,370 (3,050)	2,840 (3,700)	3,230 (4,250)	3,660 (4,850)
Water Capacity	Sprinkling System (m³)	0.34	0.35	0.36	0.37
	Circulation System (m³)	0.34	0.51	0.66	0.82
Noise Level (2m away at 1.5m height) ※6	dB(A)	71	72	74	74
Accessories		Ladder 1 set, Vibration Isolation Pads 1 set, Strainer 1 piece
Options		Safety fence, Ladder backrest, Automatic blow management device (conductivity control), Sprinkling system and chilled water system anti-freeze heater, etc.

• ※1 → “Performance (cooling capacity, chilled water flow rate) values are based on an outside air wet-bulb temperature of 27°C.”
• ※2 → “Please adhere to the specified chilled water flow range. If the flow rate is too low, it may lead to damage due to freezing or clogging from accumulated contaminants. If the flow rate is too high, it may cause corrosion due to excessive flow velocity.”
• ※3 → “If required by the High-Pressure Gas Safety Act, a notification for high-pressure gas production must be submitted to the prefectural governor.”
• ※4 → “The spray water supply volume is based on conditions of an outside air wet-bulb temperature of 27°C, an inlet temperature of 35°C, and an outlet temperature of 25°C (with a concentration ratio of four during blowdown).”

CTS-602W1	CTS-802W1	CTS-1002W1
205.2/240.7	273.3/320.9	327.9/383.7
35.3/41.4	47.0/55.2	56.4/66.0
240.7/276.3	320.9/368.4	383.7/446.5
41.4/47.5	55.2/63.4	66.0/76.8
431.4/460.5	574.4/614.0	662.8/718.6
37.1/39.6	49.4/52.8	57.0/61.8
18～54	24～72	30～90
87 (36)	87 (48)	87 (60)
17.34/20.64	23.12/27.52	28.90/34.40
Manufacturing Report Not Required	Manufacturing Report Required
4,400+215 (Control Panel)
2,200	2,200	2,200
2,418	2,758	3,099
536	536	536
B
Axial Fan (V-Belt Drive System)
1,200
3.7 (6) ×2	5.5 (6) ×2
Stainless Steel Centrifugal Pump
0.75 (2) ×2
Scroll-type Fully Enclosed Electric Compressor
7.5 (2) ×6	7.5 (2) ×8	7.5 (2) ×10
External Equalization Type Thermal Expansion Valve
High-Pressure Protection Switch, Low-Pressure Protection Switch, Freeze Prevention Temperature Switch, Discharge Gas Overheat Temperature Switch, Overcurrent Relay
R407C
Within 0.7″ or “0.7 or less
0.9/1.0	1.2/1.3	1.4/1.6
56/68	76/92	91/111
203/221	271/294	324/354
AC3ϕ 200V 50/60Hz
AC1ϕ 200V 50/60Hz
100A JIS10K Flange
Rc 3/4
Rc 2
5,400 (7,200)	6,320 (8,500)	6,980 (9,500)
0.71	0.73	0.75
1.05	1.45	1.77
74	76	76
Ladder 1 Set, Vibration Isolation Pads 1 Set, Strainer 1 Piece
Safety Fence, Ladder Backrest, Automatic Blow Management Device (Conductivity Control)
Sprinkling System and Chilled Water System Anti-Freeze Heater, etc.

• ※5 … The electrical characteristics (power consumption, operating current) indicate values under the conditions of an ambient wet-bulb temperature of 27°C, an inlet temperature of 35°C, and an outlet temperature of 25°C. Additionally, the transformer capacity and wiring capacity should be at least 1.2 times the power consumption and operating current to account for variations in operating conditions.
• ※6 … The noise level represents the measured value (A-scale) in a non-reverberant environment. In actual installation conditions, surrounding noise and reflections may cause variations of approximately ±3 dB(A).

Figure A

Note: Please ensure a clearance of at least 1.5 meters around the entire perimeter for service space.

Figure B

Note: Please ensure a clearance of at least 1.5 meters around the entire perimeter for service space.