Wiring Guide
5 of 12 © 2008 W 346 - 12/08
Electrical Application 346 E2
Description: The Power Manager 346 provides power to a reset module and up to three mixing expansion modules. The
346 allows zone managers to be connected to each tN4 bus. As an option, Bus Demands can be used to call for heat on
a tN4 Bus. This allows a mixture of tN4 communicating and non-communicating devices to call for heat.
Refer to Job Record for Maximum Allowable Loads
115 V (ac)
L
G
N
PumpPump Pump
Optional Demands
Bus 3 Bus 2 Bus 1
Boiler
Bus 0
Plug-in
Connections to
Left Side Module
Mix 1
System
Pump
Mix 2
System
Pump
Mix 3
System
Pump
Boiler
Bus 0
Bus 1
115 V (ac) L & N
24 V (ac) R & C
tN4 Bus 1
tN4
C
tN4
C
tN4
C
Bus 2
Bus 3
tN4
C
Mix 1 Mixing
Expansion Module
To Reset
Modules and
Zone Managers
Mix 2 Mixing
Expansion Module
tN4
Pmp
C R
tN4
Pmp
C R
Mix 3 Mixing
Expansion Module
tN4
Pmp
C R
See
D
346
tektra 1019-01
1
Power Manager 346
For product literature:
www.tekmarcontrols.com
Boiler Bus 0 Demand Power
Aux Pump 1
Aux Pump 2
Aux Pump 3
tN4
Bus 1 Demand
Bus 2 Demand
Bus 3 Demand
Meets Class B: Canadian
ICES & FCC Part 15
Caution! Disconnect All
Power before Opening
24 V (ac) Fuse: T2.5 A 250 V
H7011A
Relay Power
27 28
NL
Aux Pump 2
29 30
NPmp
Aux Pump 3
31 32
NPmp
For product instructions, see brochure
Input Power: 115 V (ac) ±10% 60 Hz, 12 A
All Loads Using Input Power: 11.5 A
Relay Ratings: 115 V (ac) 5 A
Relay Power: 115 V (ac) ±10% 60 Hz, 10 A
Demands: 20 to 260 V (ac) 2 VA
Supply wires 90°C/105°C
See manual
Boil Bus
0
16 17
Demand
Bus
3 Bus
2
18
Dem DemDem
19
Bus 1
20 21
Demand
227
tN4
56
t
N
4C C
12
Boil 0
11
tN4
910
2
CC
15
tN4
13 14
3
ComAux
Pmp1
4
R
R R R
3
Aux
Pmp2
8
Aux
Pmp3
12
Limited power available, see wiring brochure
Room Occ
Room UnOcc
0Boil
1
2
3
1
3
11
9
7
5
12
10
8
6
4
2
Schedule
Member
Input Power
23 24
NL
Aux Pump 1
25 26
NPmp