Install Instructions

28
IOM - HZH/HZV Series
Electrical - Low Voltage Wiring for non-vFlow
™
Units Using External Motorized Water Valve
Figure 19: AVM Valve Wiring Figure 20: Taco SBV Valve Wiring
From Water Source
IN
OUT
NOTE: Shut-off valves, strainers and
other required components not shown.
Solenoid
Valve
Flow
Regulator
To Discharge
Stage 1
Stage 2
Figure 21: Two-Stage Piping
C
C
Termostato
Y
1
2
3
Y
AVM
Taco Válvula
Calentador Interruptor
Unidad Empacada
C
C
Aquastat
Y1
1
2
3
Y1
AVM
Taco Valve
Heater Switch
DXM2
Water Valve Wiring