The Thermostat 508 is a microprocessor based control designed to operate mechanical equipment to deliver heat to a single zone within a hydronic heating system. It can be used with any terminal unit type, including radiant floor, baseboard, and fan coils. This product maintains very accurate and even air temperature with Pulse Width Modulation and Auto Heating Cycling. It is capable of controlling a zone valve or zone pump directly or through a tekmarNet® 4 Wiring Center or Zone Manager to maintain air temperature and an auxiliary temperature. This temperature is typically floor, but could be remote air.
Auto Heating Cycle
Auxiliary sensor input
CSA C US Approved for use in USA and Canada
Freeze Protection
Pulse Width Modulation
Slab minimum and maximum settings (with slab sensor)
| Control | Microprocessor control. This is not a safety (limit) control |
| Packaged weight | 0.5 lb. (230 g) |
| Dimensions | 2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm) |
| Enclosure | White PVC plastic, NEMA type 1 |
| Approvals | CSA C US, meets class B: ICES & FCC Part 15 |
| Ambient conditions | Indoor use only, -22 to 131°F (-30 to 55°C), RH ≤90% Non-condensing |
| Power supply | 24 V (ac) ±10%, 50/60 Hz, 1.5 VA |
| Relay | 24 V (ac) 2 A max, Class 2 |
| Sensors | NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| -Included | None |
| -Optional | tekmar type #: 070, 072, 073, 076, 077, 079, 084 |
| Warranty | Limited 3 Year Warranty |
In most cases the current version of literature will work, otherwise use the piece of literature most closely matching the date code of your product.
|
Product Submittal |
Jan 2011 - Present |
|
|
Installation & Operation Manual |
Apr 2012 - Present |
|
|
User Manual |
Apr 2012 - Present |