Warning – Hydrolevel 3150 User Manual
Page 3

WIRING
STEP 1
Connect 120 VAC Hot to
terminal L1. Connect 120 VAC Neutral
to terminal L2. Disconnect means and
overload protection as required (pro-
vided by others).
STEP 2
Connect the circulator to
C1 and C2. (C2 is neutral.)
STEP 3
Connect the burner cir-
cuit to B1 and B2. (B2 is neutral.)
STEP 4
Connect the thermostat to
T and T.
Multi-Zones
Adding additional zones.
SCHEMATIC/LADDER DIAGRAM
WARNING
Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before
installing or servicing this control.
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HydroStat 3150 Instructions Page 3