The tekmarNet® Thermostat 557 is a communicating touchscreen thermostat designed to operate either: a hydronic radiant floor with a two stage heat pump (water-to-air or air-to-air) for heating & cooling and an emergency backup heating system; or two stages of heating and two stages of cooling. There are three auxiliary sensor inputs that can be used to measure room, floor, outdoor or duct temperature. The optional floor sensor allows precise heating of radiant floors. Relative humidity level can be measured and controlled using either the built-in or external humidity sensor. The large touchscreen display allows you to easily adjust 7-day programmable schedules and room temperatures to optimize comfort and energy savings. The 557 can connect to tekmarNet® controls using two or four wires or it can operate as a stand-alone device.
- Submittal Sheet
- Installation
- Quick Setup
- User Manual
Features
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3 Auxiliary Sensor Inputs
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Air Group Master
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Auto Heating Cycle
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Away Scene Key
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Backlight
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Daylight Savings Time
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Exercising
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Freeze Protection
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Heat / Cool Priority
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Network Schedule Master or Member
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Optimum Start
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Outdoor & Floor Temperature Display
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Programmable Schedule
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Radiant Floor Heating & Cooling
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Relative Humidity Control
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Room Temperature Limiting
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Scenes
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Temporary Hold
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Touchscreen Technology
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Warm Weather Shut Down
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Zone Post Purge
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Zone Synchronization
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tekmarNet® Communication Compatible
Specifications
| Control | Microprocessor control. This is not a safety (limit) control |
| Packaged Weight | 0.9 lb. (400 g) |
| Dimensions | 4-1/2″ H x 4-3/4″ W x 7/8″ D (114 x 120 x 22 mm) |
| Enclosure | White PVC plastic, NEMA type 1 |
| Approvals | Meets Class B: ICES & FCC Part 15 |
| Ambient conditions | Indoor use only, 32 to 122§F (0 to 50§C), RH ≤90% non-condensing |
| Environmental | Compatible with chlorinated swimming pool environments. Do not use in presence of ammonia (animal barns), methanol, ethanol, acetone. |
| Power Supply | 24 V ±10%, 60 Hz, 2 VA standby, NEC / CEC Class 2 |
| Relays | 24 V (ac) 2A |
| 0-10 V (dc) Output | 3.3 V (dc) humidity sensor power, 3.0 mA maximum |
| Humidity Sensor | 0 to 90% +/-3% RH |
| Temperature Sensor | NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| -Included | None |
| -Optional | tekmar type # 070, 072, 073, 076, 077, 079, 083, 084, 086 |
| 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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