Hammond PWS71002A23N4LG 34200 BTU/H Air/Water Heat Exchanger, 230V Light Gray
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224-955-1644Key Features
- 34200 BTU/H air/water heat exchanger for 230 V supply
- NEMA 3R/4 rated in Lt. Gray (part description)
- Drawing overall height 1900 mm (74.80 in), width 650 mm (25.59 in)
- Bolt-on PWS Series unit for door or side mounting
- Maximum permissible operating pressure of 10 bar
- Shipping weight 127 lbs (57.61 kg); REACH and RoHS compliant
The PWS71002A23N4LG is a 34200 BTU/H air/water heat exchanger for 230 V supply, designed to pull heat out of large sealed electrical enclosures and reject it to a water circuit. It is a PWS Series bolt-on cooling unit for door and side mounting on electrical panels, aimed at OEM machine builders, system integrators and facilities teams with heavily loaded control cabinets.
The part description rates the unit NEMA 3R/4 in Lt. Gray. Its drawing shows an overall height of 1900 mm (74.80 in) with a 1800 mm (70.87 in) dimension and an overall width of 650 mm (25.59 in), making it wider than the PWS 7702. The PWS 71002 drilling template calls for seventeen 8 mm (0.31 in) holes. Shipping weight is 127 lbs (57.61 kg).
Installation follows the PWS Series manual: test the unit before mounting, drill the enclosure to the supplied template and cut the air flow openings, fit the insulation strips and tighten the fasteners until the strips compress to 2 mm (approx. 0.080 in). The cooling liquid must be at least 10 C colder than the inlet air, and the maximum permissible operating pressure is 10 bar.
The PWS71002A23N4LG ships with a mounting cutout, manual and technical data sheet, and is listed as REACH and RoHS compliant. A door contact switch is recommended so the unit shuts off whenever the enclosure door is opened.
Ideal For
- Cooling large sealed 230 V control enclosures with a water circuit
- Heavily loaded control cabinets in hot plant areas
- Door or side mounting on tall enclosures
- Locations requiring a NEMA 3R/4 rated cooling unit
Quality
| Leak Testing | All devices are checked for leaks before leaving the factory |
Overview
| Product Type | Air/Water Heat Exchanger |
| Long Description | AW HX Unit 34200 BTU/H 230 V - NEMA 3R/4 - Lt. Gray |
| Short Description | AIR WATER EXCHANGER 230V |
Dimensions
| Overall Width (Drawing) | 650 mm (25.59 in) |
| Overall Height (Drawing) | 1900 mm (74.80 in) |
| Height Dimension (Drawing) | 1800 mm (70.87 in) |
Electrical
| Voltage | 230 V |
Identifiers
| UPC | 623980720524 |
| UNSPSC | 40101802 |
| Part Number | PWS71002A23N4LG |
| Drawing Number | 30197-007_01-A |
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 |
| Drilling Template | PWS 71002 |
| Cooling Water Hose | Flexible pressure-resistant (>10 bar) hose secured with clamps |
| 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 |
Cooling Performance
| Cooling Capacity (Part Description) | 34200 BTU/H |
Packaging & Shipping
| Included Items | Cooling unit, mounting cutout, manual, technical data sheet |
| Shipping Weight | 127 lbs (57.61 kg) |
| Accessory Pack (Typical) | Sealing strips, threaded mounting studs, mounting bolts, nuts and washers, condensate hose, door contact connector/jumper |
Construction & Finish
| Colour | Lt. Gray |
Environmental & Protection
| Freezing Conditions | Water circuit must be completely emptied with compressed air before storage or transport below freezing |
| Storage Temperature Limit | Must not be exposed to temperatures exceeding +70 C |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Enclosure Rating (Part Description) | NEMA 3R/4 |
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Frequently Asked Questions
What is the cooling capacity of the PWS71002A23N4LG?▾
It is rated at 34200 BTU/H at 230 V according to its part description.
How big is it?▾
The part drawing shows 1900 mm (74.80 in) overall height and 650 mm (25.59 in) width. Shipping weight is 127 lbs (57.61 kg).
What water temperature does it need?▾
The PWS Series manual states the cooling liquid supplied to the air/water heat exchanger must be at least 10 C colder than the heat exchanger inlet air temperature for the unit to function correctly.
What is the maximum water pressure?▾
The manual gives a maximum permissible operating pressure of 10 bar and calls for flexible pressure-resistant (>10 bar) hose secured with clamps on the cooling water connection.
What comes in the box?▾
The manual lists the cooling unit, a mounting cutout, the manual and a technical data sheet. The PWS Series accessory pack typically includes sealing strips, threaded mounting studs, mounting bolts, nuts and washers, a condensate hose and a door contact connector/jumper.
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