Submittal Sheet

Below is a sample application drawing for this product. This application may include other tekmar products that are required
for installation. More sample applications can be found at www.tekmarcontrols.com.
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Sample Electrical diagram
Sample Mechanical diagram
Product design, software and literature are Copyright © 20 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.
2 of 2
All specifications are subject to change without notice.
Printed in Canada. C 256 - 0/.
tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A. 
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256
070
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BOIL
F
OCC
Press & Release:
all 3 buttons, to adjust menu
Press & Hold:
Item, to view settings
, to test.
Boiler Control 256
One Stage Boiler
Item
Date Code
Power: 24 V ±10% 50/60 Hz
3 VA Class 2
Relay: 240 V (ac) 5 A 1/6 hp
Meets Class B:
Canadian ICES
FCC Part 15
H1190D
Terminal Unit Boiler Demand
Made in Canada
Signal wiring
must be rated
at least 300V
Inst / Adv
1
Boil
2
Out
3
Com
4
UnO
Sw
5
Boiler
6 7
T
8
Power
R+
9
C-
Do not apply power
tektra 909-01
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