tekmar 654 Snow Melting Control Installation - Manual (Page 6)

© 2013 654_D - 06/13 6 of 44
tN4 Wiring Center or Zone Manager ------------- -------------
Zone 1
tN4 Wiring Center
or Zone Manager
Zone 2
tN4 C R W tN4 C R W Slab
Brn
+
Mod tN4 Aux Ht R C
Bret
Out/
Com –
Blk Yel Blu Red Sup
No Power
Transformer and Relays -------------------------------------------------------------------------------- --------------------------------------------------------------------------------
Alert Relay Output ------------------------------ ------------------------------
Alert
Equipment
Slab
Brn
+
Mod tN4 Aux Ht R C
Bret
Out/
Com –
Blk Yel Blu Red Sup
No Power
Relay 003
System
Pump
Relay 003
2
1
8
7 3
4
5
6 2
1
8
7 3
4
5
6
Transformer 009
L
N
C
R
On/Off Boiler
T T
Slab
Brn
+
Mod tN4 Aux Ht R C
Bret
Out/
Com –
Blk Yel Blu Red Sup
No Power
L N G
115 V (ac)