tekmar 509 Thermostat Installation User Manual
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© 2012
D 508 - 04/12
Technical Data
Notes
Thermostat 508 One Stage Heat
Literature
D508, U508, C508
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
508 (None) 509 (079)
–Optional
tekmar type #: 070, 072, 073, 076, 077, 079, 084
Warranty
Limited 3 Year (See D508 for full warranty)
Slab Sensor 079
Literature
D079, C079
Packaged weight
0.1 lb. (50 g)
Dimensions
3/16” OD x 1-1/2” (5 OD x 38 mm)
Sensor Material
316 stainless steel, 10’ (3 m) 24 AWG, 300 volt PVC insulated
Zipcord
Approvals
CSA C US
Operating range
-58 to 140°F (-50 to 60°C)
Sensor
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Warranty
Limited 3 Year (See D079 for full warranty)