The DHW Control 257 is designed to operate multiple boilers for volume water heating. It can be used in hotels, apartments, and laundromats to control multiple boilers and provide quick recovery for domestic hot water. This control regulates a single hot water temperature through DHW control. It is capable of controlling up to 2 on/off boilers using a sensor to maintain a tank setpoint temperature.
- Submittal Sheet
- Data Brochure
Features
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2 Stage control
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Cumulative boiler run time hours
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Equal Runtime Rotation
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Proportional or PID staging
Specifications
| Control | Microprocessor control. This is not a safety (limit) control |
| Packaged weight | 0.8 lb. (360 g) |
| Dimensions | 4-3/4″ H x 2-7/8″ W x 7/8″ D (120 x 74 x 22 mm) |
| Enclosure | White PVC plastic, NEMA 1 rated |
| Approvals | CSA C US, meets class B: ICES & FCC Part 15 |
| Ambient conditions | Indoor use only, -20 to 120°F (-30 to 50°C), RH ≤90% Non-condensing |
| Power supply | 24 V (ac) ±10%, 50/60 Hz, 3 VA |
| Relay | 240 V (ac) 10 A max, 1/3 hp |
| Sensors | NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| -Included | Universal Sensor 082 |
| -Optional | tekmar type #: 071, 078 |
| Warranty | Limited 3 Year Warranty |
Speedy Shipping and Professional Packaging
Due to our long-term partnership in a long-standing partnership with UPS, FedEx, DHL as well as a range of other leading global carriers, we can offer a variety of shipping options. Our warehouse staff is highly educated and will package your goods in accordance with our exact and precise specifications. Your items are carefully inspected and properly secured before shipping. Everyday, we send to thousands of customers across many countries. Our commitment to become the biggest online retailer worldwide is demonstrated by this. The warehouses are located in Europe as much as they are in USA.
Note: Orders that contain more than one item are assigned a processing period depending on the item.
We will inspect each and every one of the products before they are shipped. Today, the majority of orders will be shipped within 48 hours. Delivery is expected to take between 3 and seven days.
Returns
We don't manage the stock in our factory and warehouse. Actual stock levels may fluctuate at any time. It is possible that your order will be out of stock once the order has been placed.
Our policy lasts 30 days. Unfortunately, if 30 days have passed since you purchased your item, we will not be able to give you a refund or exchange.
The item you purchase must be in its original packaging and in good condition. It must also not be used. The item must be in its original packaging.
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