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.
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 664 - 0/.
tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A.
1
+
2
–
3
Opn/4-20 mA
Var
4
Pwr
Mix
5
Cls
6
Red
7
Blk/
Com
8
Blu
9
Yel
10
Brn/
Slab1
11
Slab
2
12
Com
13
tN2
14
Mix
Ret
15
Mix
Sup
16
Com
17
Boil
18
Out
19
Melt/Idle
Demand
20 21
Stage
1
22 23
Stage
2
24 25
Zn
1
26
Com
Zn
27
Zn
2
28 30
Sys
P1
29
Power
L N
Menu
Test
Snow Detector & Melting Control 664
Two Zone, Two Stage Boiler, Mixing
Item
Start Stop
Idle Demand
Signal wiring must be rated at least 300
Melt Demand
not testing
testing
testing paused
For maximum heat,
press and hold Test
button for 3 seconds.
Made in Canada by
tekmar Control Systems Ltd.
tektra 900-01
Power 115 V ± 10% 50/60 Hz 600 VA
Floating Relays 230 V (ac) 5 A 1/6 hp
Stage/Zn/P1 Relays 230 V (ac) 5 A 1/3 hp
Var. Pump 230 V (ac) 2.4 A max (FLA)
5 A max (LRA), fuse T2.5 A 250V
Demand 20 to 260 V (ac) 2 VA
off
red
red
Do not apply power
1 kΩ max
power
%
Date Code
H1198D
Meets Class B:
Canadian ICES
FCC Part 15
Melt Demand
Idle Demand
WWSD
Minimum
Maximum
Water
Melting
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