Wiring Guide

7 of 12 © 2009 W 423 - 03/09
50
51 52 53
Stage1/ Stage 2/
Boil Enbl Setp Enbl
75
76 77 78
Demand Demand
DHW Setpoint
54 55
DHW Primary
10 A
max
79 80 81 82
NPump N
Pump
tN4
Made in Canada
8 VA 1 VA
Boil Sens Sup / Ret
H7010A
Off / DHW Sensor
Off / tekmar Stager
Boilers On-Off / Mod
Off / Rotation
Meets Class B: Canadian
ICES & FCC Part 15
Powered
Outputs
24 V (ac)
Universal Reset Module 423
Item
Menu
tektra 1006-01
Demands: 20 - 260 V (ac)
Relay Rating: 115 V (ac) 5 A
71 72 73 74
DHW 24 V (ac)
/
57 58 59 60 6156
C
C
tN4
Mod2 (dc)Mod1 (dc)
6564
C3C1+–
C
+–
tN4
62 63
C2 tN4 tN4
66 67
DHW Com
Boiler
68 69
Boil Com
70
Out
Do not apply power
Test
123
Vlv
R
Boiler
Bus
CtN4
2
Bus
CtN4
1
Bus
CtN4
3
Bus
CtN4
Boiler
Sensor
082
DHW
Sensor
082
Outdoor
Sensor
070
Setpoint
Call
0-10 V(dc)
Boiler
0-10 V(dc)
Boiler
To ground
Pump Pump
Refer to Job Record for
Maximum Allowable Loads
115 V (ac) L & N
See
D
423
Connections
from Zone
Manager
24 V (ac) R & C
tN4 = 1 Bus
Electrical Application 423 E4
Description:
DHW with Sensor and Pump, Setpoint, Two Modulating Boilers.