Hammond PWS3082A115N4SS 2898 BTU/h Air/Water Heat Exchanger, 115V Stainless
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- Cooling capacity 2898 BTU/h (850 W) at +95 F enclosure / +50 F water
- 115 V, 60 Hz; 21.3 W power consumption, 0.235 A running current
- Air volume 125 CFM (213 m3/h); coolant flow 2 GPM (450 L/h) at rated capacity
- Adjustable control range +50 to +104 F (+10 to +50 C), factory set at +95 F (+35 C)
- 304 stainless steel case; NEMA/Type 4/4X per part description
- Rugged (10 bar) copper tube / aluminum fin core with 1/2 in barb connection
- Integrated thermostat and solenoid valve with alarm contact
- Unit size 24.10 in H x 10.13 in W x 5.62 in D; side, door or internal mounting
The PWS3082A115N4SS is a compact air/water heat exchanger from the PWS 3000 Series: the higher-output model of the 2000-3000 BTU/H PWS 3000 range, sharing the same 24.10 in housing as the PWS 3062 but moving more air. Panel builders and OEM designers use it to cool enclosures with chilled water/glycol, tower water or other circulated coolants where ambient conditions are hot, harsh or subject to frequent wash-down.
The PWS 3082 is rated at 2898 BTU/h (850 W) at +95 F (+35 C) enclosure and +50 F (+10 C) water conditions, with an air volume of 125 CFM (213 m3/h) and a coolant flow of 2 GPM (450 L/h) at rated capacity. This is the 115 V version, specified for 60 Hz supply; it consumes 21.3 W and draws 0.235 A running current, with a terminal block power connection. An integrated thermostat and solenoid valve with alarm contact provide automatic temperature control.
The exterior case of this variant is 304 stainless steel, and the part description rates it NEMA/Type 4/4X, which suits wash-down and corrosive locations. Inside, a rugged (10 bar) copper tube / aluminum fin heat exchanger connects through a 1/2 in barb. The series ordering table gives the unit as 24.10 in (612 mm) high, 10.13 in (257 mm) wide and 5.62 in (143 mm) deep, while the part page lists a size of 26.14 in x 11.13 in x 6.62 in (664 mm x 283 mm x 168 mm). Shipping weight is 24 lbs (10.89 kg). The series is rated UL, cUL and CE.
Its technical companion sheet lists a 100 % duty cycle, noise under 51 dB at 1 m, vertical installation, a 1/2 in push-in cooling water fitting, a 1/2 in OD condensate hose barb and a .5 A gG pre-fuse. Note that the part description for PWS3082A115N4SS shows 900 W, while the series specification sheet rates the PWS 3082 model at 2898 BTU/h (850 W). Side, door or internal mounting gives installation flexibility, and the low noise design is maintenance-free. The manual requires coolant at least 10 C colder than the inlet air.
Ideal For
- Water-cooled enclosure cooling where ambient air is too hot
- Sealed panels in harsh industrial areas
- Wash-down locations
- Closed-loop cooling with chilled water/glycol or tower water
Quality
| Leak Testing | All devices are checked for leaks before leaving the factory |
Overview
| Model | PWS 3082 |
| Series | PWS 3000 Series (2000-3000 BTU/H) |
| Product Type | Air/Water Heat Exchanger |
| Long Description | Air/Water Heat Exch. 900W 115V 4/4X SS |
| Short Description | AW HX 900W-4/4X SS |
| Rating Shown In Part Description | 900 W |
Dimensions
| Depth (Series Table) | 5.62 in (143 mm) |
| Width (Series Table) | 10.13 in (257 mm) |
| Height (Series Table) | 24.10 in (612 mm) |
| Weight Without Packaging | 10 kg (22 lb) |
| Listed Size H X W X D (Part Page) | 26.14 in x 11.13 in x 6.62 in (664 mm x 283 mm x 168 mm) |
| Height X Width X Depth (Technical Sheet) | 613 x 257 x 143 mm (24.14 x 10.13 x 5.62 in) |
Electrical
| Frequency | 60 Hz |
| Pre-Fuse T | .5 A gG |
| Running Amps | 0.235 A |
| Rated Voltage | 115 V |
| Power Connection | Terminal Block (hard wired terminal) |
| Power Consumption | 21.3 W |
| Alarm Switch Setting | 45 C |
| Temperature Monitoring (Alarm) | NC contact; maximum input 5 A |
Accessories
| Available Accessories | Remote door switches, gasket kits, condensate bottle |
Connections
| Condensate Discharge | 1/2 in OD hose barb |
| Heat Exchanger Connection | 1/2 in barb connection |
| Cooling Water Connection (Technical Sheet) | 1/2 in push-in fitting |
Identifiers
| UPC | 623980336442 |
| UNSPSC | 39121301 |
| Part Number | PWS3082A115N4SS |
Installation
| Door Contact | Door contact switch recommended to turn the unit off when the enclosure door is opened |
| Mounting Style | Bolt-on unit for door or side mounting on electrical panel enclosures |
| Mounting Options | Side, door or internal mounting |
| Cooling Water Hose | Flexible pressure-resistant (>10 bar) hose secured with clamps |
| Installation Attitude | Vertical |
| Supply Voltage Tolerance | Within ± 10% of the ID plate value |
| Supply Frequency Tolerance | Within ± 3 Hz of the ID plate value |
| Insulation Strip Compression | 2 mm (approx. 0.080 in) |
| Coolant Temperature Requirement | Cooling liquid must be at least 10 C colder than the heat exchanger inlet air temperature |
| Maximum Permissible Operating Pressure | 10 bar |
Replacement Parts
| Fan Spare Part No. | 18781100002 |
| Solenoid Valve (115V) Spare Part No. | 18785000003 |
| (Electronic) Controller (115V) Spare Part No. | 18783000005 |
| (Mechanical) Thermostat (115/230V) Spare Part No. | 18713000001 |
| Temperature Sensor (Eliwell Controller Units Only) Spare Part No. | 18783000007 |
Cooling Performance
| Coolant | Water |
| Air Volume | 125 CFM (213 m3/h) |
| Duty Cycle | 100 % |
| Factory Setting | +95 F (+35 C) |
| Operating Pressure | 14.5 - 145 PSI (1 - 10 bar) |
| Compatible Coolants | Chilled water/glycol, tower water and other circulated coolants |
| Temperature Control | Integrated thermostat and solenoid valve with alarm contact for automatic temperature control |
| Water Inlet Temperature | 10 C (>+1 C to +35 C) / 50 F (>+34 F to +95 F) |
| Adjustable Control Range | +50 to +104 F (+10 to +50 C) |
| Thermostat Factory Setting | +35 C / 95 F |
| Flow Rate At Rated Capacity | 2 GPM (450 L/h) |
| Range Of Adjustment (Technical Sheet) | min. 10 C / 50 F - max. 40 C / 104 F |
| Cooling Capacity Test Point (Technical Sheet) | L35 / W10 / 454 l/h |
| Cooling Capacity (Enclosure +95 F / +35 C, Water +50 F / +10 C) | 2898 BTU/h (850 W) |
Packaging & Shipping
| Included Items | Cooling unit, mounting cutout, manual, technical data sheet |
| Shipping Weight | 24 lbs (10.89 kg) |
| Accessory Pack (Typical) | Sealing strips, threaded mounting studs, mounting bolts, nuts and washers, condensate hose, door contact connector/jumper |
Construction & Finish
| Design | Low noise, maintenance-free |
| Exterior Case | 304 stainless steel |
| Unit Construction | Steel |
| Heat Exchanger Core | Rugged (10 bar) copper tube / aluminum fin |
| Corrosion Protection | Galvanized, electrostatically powder coated (200 C) - stainless steel |
Environmental & Protection
| Noise Level (1 M) | < 51 dB |
| Freezing Conditions | Water circuit must be completely emptied with compressed air before storage or transport below freezing |
| Ambient Air Temperature | +36 to +140 F (+2 to +55 C) |
| Storage Temperature Limit | Must not be exposed to temperatures exceeding +70 C |
| Enclosure Internal Temperature | +25 C / 77 F to +45 C / 113 F |
Compliance & Certifications
| Standards | UL, cUL, and CE |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Series Enclosure Ratings | NEMA 3R, 4, 4X |
| Enclosure Rating (Part Description) | NEMA/Type 4/4X |
| Protective Category UL Technical Sheet) | Type 12 / 3R / 4 (4X stainless steel only) |
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Frequently Asked Questions
What is the cooling capacity of the PWS3082A115N4SS?▾
The series specification sheet rates the PWS 3082 at 2898 BTU/h (850 W) with the enclosure at +95 F (+35 C) and the water at +50 F (+10 C). The part description itself shows 900 W.
What power supply does it need?▾
This variant is rated 115 V at 60 Hz, consumes 21.3 W and draws 0.235 A running current. Power connects through a terminal block. Supply voltage must be within ± 10% and frequency within ± 3 Hz of the ID plate values.
What coolants and water conditions does it accept?▾
It is compatible with chilled water/glycol, tower water and other circulated coolants. Rated capacity needs 2 GPM (450 L/h), operating pressure is 14.5 - 145 PSI (1 - 10 bar), and the coolant must be at least 10 C colder than the heat exchanger inlet air.
How is it mounted?▾
The series supports side, door or internal mounting. The manual describes bolting the unit to the enclosure with the supplied stud bolts, screws and washers, compressing the insulation strips to 2 mm (approx. 0.080 in).
Is the PWS3082A115N4SS suitable for wash-down or corrosive areas?▾
Its part description rates it NEMA/Type 4/4X with a stainless steel (304 SS) case, and the series is designed for enclosures subject to frequent wash-down.
What accessories are available?▾
The series specification sheet lists remote door switches, gasket kits and a condensate bottle as accessories. A door contact switch is recommended to turn the unit off when the enclosure door is opened.
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