Wiring Guide

© 2008 W 346 - 12/08 8 of 12
Wiring the Auxiliary Pump Inputs Terminals 4 - 15
The 346 has three Auxiliary Pump outputs that are activated once 24 V (ac) is applied to the Auxiliary Pump input from
any one of the R terminals. Either Mixing Expansion Modules, tN4 Thermostats, or tN4 Setpoint Controls can activate the
Auxiliary Pump inputs.
Connect the Aux Pmp1 terminal 4 to the Mixing Expansion
Module System Pump terminal.
Connect the R terminal 7 to the Mixing Expansion Module
R terminal.
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Auxiliary Pump 1 to Mixing Expansion Modules Terminals 4, 6, 7
Connect the Aux Pmp1 terminal 4 to the tN4 Thermostat
W terminal.
Connect the C terminal 6 to the tN4 Thermostat C
terminal.
Connect the R terminal 7 to the tN4 Thermostat R
terminal.
Connect the tN4 terminal 5 to the tN4 Thermostat tN4
terminal.
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Auxiliary Pump 1 to tN4 Thermostats Terminals 4, 6, 7
Connect the Aux Pmp 1 terminal 4 to the tN4 Setpoint
Control R1 terminal.
Connect the C terminal 6 to the tN4 Setpoint Control C
terminal.
Connect the R terminal 7 to the tN4 Setpoint Control R
terminal.
Connect the tN4 terminal 5 to the tN4 Setpoint Control
tN4 terminal.
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Auxiliary Pump 1 to tN4 Setpoint Controls Terminals 4, 6, 7
Connect the Aux Pmp 2 terminal 8 to the Mixing
Expansion Module System Pump terminal.
Connect the C terminal 10 to the Mixing Expansion
Module C terminal.
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•
Connect the R terminal 11 to the Mixing Expansion
Module R terminal.
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Auxiliary Pump 2 to Mixing Expansion Modules Terminals 8, 10, 11
Connect the Aux Pmp 2 terminal 8 to the tN4 Thermostat
W terminal.
Connect the C terminal 10 to the tN4 Thermostat C
terminal.
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Connect the R terminal 11 to the tN4 Thermostat R
terminal.
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Auxiliary Pump 2 to tN4 Thermostats Terminals 8, 10, 11
Connect the Aux Pmp 2 terminal 8 to the tN4 Setpoint
Control R1 terminal.
Connect the C terminal 10 to the tN4 Setpoint Control
C terminal.
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Connect the R terminal 11 to the tN4 Setpoint Control
R terminal.
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Auxiliary Pump 2 to tN4 Setpoint Controls Terminals 8, 10, 11
Pmp R
Aux tN4 C R
Pmp 1 1
4 567
Mixing Expansion
Module
Power Manager 346
tN4 C R W
Aux tN4 C R
Pmp 1 1
4 567
Power Manager 346
tN4 Thermostat
tN4 C R R1
Aux tN4 C R
Pmp 1 1
4 567
Power Manager 346
tN4 Setpoint Control