tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 5100 Silver Star Road
Vernon, B.C. Canada V1B 3K4
(250) 545-7749 Fax. (250) 545-0650
Web Site: www.tekmarcontrols.com
Product design, software and literature are Copyright © 2008 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
12 of 12
All specifications are subject to change without notice.
Printed in Canada. W 544 - 12/08.
Technical Data:
tekmarNet
®
4 Thermostat 544:
One Stage Heat, One Stage Cool, One Fan
Control
Microprocessor PID control; This is
not a safety (limit) control
Packaged weight
1.05 lb. (476 g)
Enclosure
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 80% to 88°F (31°C), down to 50% from 104 to 122°F (40 to 50°C)
Altitude <6560 feet (2000 m), Installation Category II, Pollution Degree 2
Power supply
24 V (ac) ± 10% 60 Hz, 1.5 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 k @ 77°F (25°C ± 0.2°C) ß = 3892
– Included
None
– Optional
tekmar type # 070, 071, 072, 073, 076, 077, 078, 079, 082, 084
Technical Data
The installer must ensure that this control and its wiring are isolated and / or shielded from strong sources of electromag-
netic noise. Conversely, this Class B digital apparatus complies with Part 15 of the FCC Rules and meets all requirements
of the Canadian Interference-Causing Equipment Regulations. However, if this control does cause harmful interference to
radio or television reception, which is determined by turning the control off and on, the user is encouraged to try to correct
the interference by re-orientating or relocating the receiving antenna, relocating the receiver with respect to this control,
and / or connecting the control to a different circuit from that to which the receiver is connected.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
