ClimaTemp CTW-18EX – 1.5-Ton Water-Cooled Portable Air Conditioner
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The ClimaTemp CTW-18EX 1.5-Ton Water-Cooled Portable Air Conditioner provides 18,000 BTU/hr of cooling for server rooms, offices, equipment rooms, and commercial facilities. Its water-cooled design eliminates the need for conventional hot-air exhaust ducting.
Key Specifications:
- Cooling: 18,000 BTU/hr (1.5 Tons)
- Electrical: 115V / 10.7A
- Plug: NEMA 5-15
- Airflow: 610 CFM (High)
- Refrigerant: R-32
- Water Flow: 1.8 GPM at 85°F
- Condensate Pump: Built-In, 17′ Lift
- Hose Kit: Included 30′ Quick Connect
Built-in hose storage. Nationwide shipping available. Contact us for pricing and availability.
The ClimaTemp CTW-18EX 1.5-Ton Water-Cooled Portable Air Conditioner delivers 18,000 BTU/hr of cooling for server rooms, offices, commercial buildings, industrial equipment rooms, and temporary HVAC applications.
Unlike traditional air-cooled spot coolers, the CTW-18EX uses water to remove condenser heat, eliminating the need for conventional hot-air exhaust ducting. This makes it particularly useful for enclosed commercial environments where compatible water connections and drainage are available.
Operating on 115V power, the CTW-18EX delivers up to 610 CFM of airflow and features R-32 refrigerant, a built-in automatic condensate pump, and an integrated hose storage compartment.
The unit includes a 30-foot stainless-steel double-lock quick-connect hose kit, providing convenient connections to suitable condenser water supply and discharge arrangements.
With a compact footprint and a weight of approximately 151 pounds, the ClimaTemp CTW-18EX is designed for portable commercial cooling.
Key Features
- 18,000 BTU/hr Cooling Capacity: Delivers 1.5 tons of water-cooled portable air conditioning.
- No Hot-Air Exhaust Duct Required: Rejects condenser heat through water connections instead of a separate hot-air exhaust stream.
- 115V Electrical Operation: Uses a NEMA 5-15 plug with LCDI protection.
- 10.7-Amp Current Consumption: Designed for compatible 115V electrical circuits.
- 610 CFM High-Speed Airflow: Provides targeted cooling for commercial applications.
- R-32 Refrigerant: Uses the manufacturer’s R-32 refrigeration configuration.
- Included 30-Foot Hose Kit: Stainless-steel double-lock quick-connect fittings.
- Built-In Hose Storage Compartment: Keeps the hose kit organized during transportation and storage.
- Automatic Condensate Pump: Provides up to 17 feet of vertical lift.
- Automatic Restart: Helps restore operation after power interruptions.
- Safety Protection: Compressor overload protection, fan motor thermal protection, and automatic high-pressure switch.
- Compact Construction: Measures 18.9″ W × 22.5″ D × 35.9″ H.
Why Choose a Water-Cooled Portable Air Conditioner?
The ClimaTemp CTW-18EX uses a water-cooled condenser to remove heat from the conditioned space.
Traditional air-cooled portable air conditioners often require exhaust ducting to direct hot condenser discharge away from the cooled area.
The CTW-18EX eliminates that requirement by transferring condenser heat into a connected water stream.
This makes it useful for applications where conventional exhaust ducting is difficult to install but suitable water supply and discharge connections are available.
Important: The unit still requires condenser water and an appropriate discharge arrangement. It is not a self-contained closed-loop water system.
Common Applications
Server Rooms and IT Equipment Cooling
The CTW-18EX provides temporary or supplemental cooling for appropriately sized server rooms, networking equipment, and telecommunications facilities.
Its water-cooled design is useful for installations where routing hot condenser exhaust air would be difficult.
Read Our Server Room Cooling Guide
Commercial Offices and Retail Facilities
Commercial offices, retail stores, and institutional buildings may need additional cooling during peak summer temperatures or HVAC maintenance.
The CTW-18EX provides portable cooling without requiring conventional hot-air exhaust ducting.
Industrial Equipment Rooms
Manufacturing facilities, workshops, and equipment rooms may experience concentrated heat loads around machinery and electronics.
The CTW-18EX provides targeted cooling for suitable indoor commercial applications.
Temporary and Emergency HVAC Cooling
The ClimaTemp CTW-18EX is suitable for temporary cooling during:
- Commercial HVAC failures
- Server-room cooling emergencies
- Equipment maintenance
- Building renovations
- Temporary commercial installations
- Supplemental cooling projects
Explore Commercial HVAC Solutions
ClimaTemp CTW-18EX Technical Specifications
| Specification | ClimaTemp CTW-18EX |
|---|---|
| Cooling Capacity | 18,000 BTU/hr |
| Nominal Cooling | 1.5 Tons |
| Equipment Type | Water-Cooled Portable Air Conditioner |
| Electrical Supply | 115V |
| Current Consumption | 10.7 Amps |
| Manufacturer-Listed Fuse Size | 15 Amps |
| Plug Type | NEMA 5-15 with LCDI |
| Power Cord Length | 6 Feet |
| Refrigerant | R-32 |
| Refrigerant Charge | 18 oz |
| Compressor | Rotary |
| Evaporator Airflow — High | 610 CFM |
| Evaporator Airflow — Low | 490 CFM |
| Operating Ambient Range | 64°F–113°F |
| Water Inlet | 3/8″ |
| Water Outlet | 3/8″ |
| Condenser Water Flow | 1.8 GPM at 85°F |
| Hose Kit | Included 30′ Double-Lock Quick Connect |
| Hose Storage | Built-In Compartment |
| Condensate Pump | Built-In Automatic |
| Condensate Pump Lift | 17 Feet |
| Width | 18.9″ |
| Depth | 22.5″ |
| Height | 35.9″ |
| Weight | 151 lbs |
| Automatic Restart | Yes |
| High-Pressure Protection | Yes |
Specifications are based on ClimaTemp’s published CTW-18 technical sheet, which is linked from the current CTW-18EX manufacturer page. Confirm the current equipment nameplate before installation.
30-Foot Quick-Connect Hose Kit
The ClimaTemp CTW-18EX includes a 30-foot quick-connect hose system with stainless-steel double-lock fittings.
The hose system supports connections for condenser water supply and discharge.
The unit also includes an integrated hose storage compartment, helping keep hoses organized when the equipment is transported or stored.
Water Requirements
- Water Inlet: 3/8″
- Water Outlet: 3/8″
- Published Condenser Water Flow: 1.8 GPM at 85°F
Actual water requirements may vary with operating conditions.
The installation must provide an appropriate water supply and acceptable outlet or discharge arrangement.
Electrical Requirements
The ClimaTemp CTW-18EX operates on 115V electrical power.
The manufacturer lists:
- Current Consumption: 10.7A
- Fuse Size: 15A
- Plug: NEMA 5-15 with LCDI protection
- Power Cord Length: 6 feet
Use a properly rated electrical circuit and follow the current equipment nameplate and manufacturer’s installation instructions.
Built-In Condensate Pump
The CTW-18EX includes an automatic condensate pump with up to 17 feet of vertical lift.
This allows collected moisture to be routed to an appropriate drainage location without relying on manual condensate tank emptying.
The equipment also includes condensate pump full-stop protection.
A suitable condensate drainage arrangement is required.
Optional Accessories and Replacement Parts
HKQC-30 Replacement Hose Kit
ClimaTemp offers the HKQC-30, a replacement 30-foot quick-connect hose kit for compatible CTW-18 water-cooled equipment.
This accessory features double-lock stainless-steel quick connections.
Replacement and Maintenance Parts
Contact Climate Control Solutions for compatible hoses, filters, and replacement parts.
Browse Commercial HVAC Accessories
Frequently Asked Questions
How much cooling does the ClimaTemp CTW-18EX provide?
The CTW-18EX delivers 18,000 BTU/hr of cooling, equivalent to 1.5 tons.
Does the CTW-18EX require exhaust ducting?
No conventional hot-air exhaust duct is required because the unit removes condenser heat through water connections.
Does the CTW-18EX include hoses?
Yes. ClimaTemp identifies a 30-foot double-lock quick-connect hose kit with the unit.
Does it operate on 115V power?
Yes. The CTW-18EX operates on 115V power and uses a NEMA 5-15 plug.
How much water does the CTW-18EX use?
The manufacturer’s published condenser water flow is 1.8 GPM at 85°F.
Does it have a built-in condensate pump?
Yes. It includes an automatic condensate pump with up to 17 feet of vertical lift.
What refrigerant does the CTW-18EX use?
The manufacturer’s published specification lists R-32 refrigerant.
Can the CTW-18EX cool a server room?
Yes. It can provide temporary or supplemental cooling for appropriately sized server rooms with compatible power, water supply, and drainage.
What is the difference between CTW-18EX and CTW-18EX HEPA?
The standard CTW-18EX is a water-cooled portable air conditioner. The separately marketed CTW-18EX HEPA adds a HEPA filtration configuration.
Can the CTW-18EX operate without water connections?
No. Condenser water is required for heat rejection.
Request a Quote for the ClimaTemp CTW-18EX
Climate Control Solutions supplies ClimaTemp water-cooled portable air conditioners, spot coolers, and commercial HVAC equipment nationwide.
Whether you need one CTW-18EX for an equipment room or multiple units for a commercial project, our team can assist with equipment selection, water connection requirements, compatible accessories, and shipping.
Contact Climate Control Solutions for current pricing and availability.
Phone: (800) 633-8711
Email: [email protected]
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