3
Wiring
Connect input voltage (120 VAC, 60 HZ) to terminals 1 and 2.
MODEL CG450
Connect terminal 2 to burner circuit neutral. Connect terminal P2 to
burner Circuit in series with other limit controls. Consult boiler
manufacturer instructions for proper terminal connections. Control
should be wired in series with and before other limit controls.
Optional water feeder connection. Connect feeder N to terminal 2.
Connect Feeder H to terminal 1. Connect feeder “FEED” or “W” to
terminal A. For water feeders with 2 leads, connect feeder neutral
to terminal 2 and feeder hot to terminal A.
Note:
Use of a solenoid valve or McDonnell & Miller Model 101A
water feeder may cause flooding and is not recommended for use
with this low water cut-off.
Connect “BURNER” terminal on the CycleGard control to the orange
burner wire (120VAC) located under the oil burner transformer.
See page 5 for schematic wiring diagram and additional
SmartCycle description.
FACTORY
INSTALLED
JUMPER.
DO NOT
REMOVE
1
2
BURNER
POWER
SOURCE
120V
AC
+
0
LIMIT
CONTROLS
A
P2
P1
1
2
BURNER
WATER
FEEDER
3
4
OPTIONAL ACTIVATION
WARNING
Electrical shock hazard.
To prevent electrical shock, death or equipment
damage, disconnect power supply before installing or servicing control.
Install this control in accordance with all local codes and authorities having jurisdiction. Regulations
of these authorities take precedence over the general instructions provided in this manual.
