tekmarNet® 4 Thermostat - One Heat, One Cool, One Fan
Control
Description The tekmarNet® 4
thermostat 544
operates one stage of heating equipment, one stage of cooling
equipment, and
one fan. The fan operation includes logic to operate ventilation.
The 544
can operate as a stand alone device, or communicate with a group of
tekmarNet® 4
thermostats.
Literature —
D544 , J544 , U544 , W544
Control —
Microprocessor PID control; This is not a safety
(limit) control
Packaged weight —
1.05 lb. (476 g), Enclosure K, white PVC plastic
Dimensions —
4-1/2" H x 4-3/4" W x 7/8" D (114 x 120 x 22 mm)
Approvals —
CSA C US, CSA/UL 61010-1, meets Class B: ICES and FCC Part
15
Ambient Conditions —
Indoor use only, 32 to 122°F (0 to 50°C).
—
RH less than or equal to 80% to 88°F (31°C), down to 50%
from 104 to
122°F (40 to 50°C)
—
Altitude <2000 m, Installation Category II, Pollution
Category 2
Power Supply —
24 V (ac) ± 10% 60 Hz, 3.5 VA, NEC / CEC Class 2
W1 Relay —
24 V (ac) 2 A
Y1 Relay —
24 V (ac) 2 A
G1 Relay —
24 V (ac) 2 A
Sensors —
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Included —
None
Optional —
tekmar type #:071, 070, 072, 073, 076, 077, 078, 079, 083
