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Model 1100
Low Water Cut-Off
For Residential
Hot Water Boilers
24 VAC Operating Voltage
Step
Determine Mounting Location
The Safgard 1100 must be installed at or above the
minimum safe water level established by the boiler
manufacturer. The 1100 can be installed directly into
the boiler if a suitable tapping is available
1100 can also be installed in the boiler piping using a
standard 3/4" tee
.
Note: When installing in piping, select a location
close to the boiler to ensure the 4' wiring harness will
reach the 24-Volt transformer. The cut-off should be
installed on the boiler side of the circulator or shut-off
valves.
IMPORTANT: Check for adequate clearance
(minimum 1/4") from metal probe sensor to any
surface inside the boiler or pipe.
Do not install in a location that could hold or trap
water in the event of a low water condition.
W RNING
Electrical shock hazard. To prevent electrical shock, death or
equipment damage, disconnect power supply before
installing or servicing control. Only qualified personnel may install or service this control in
accordance with local codes and ordinances. Read instructions completely before proceeding.
W RNING
Frozen pipes/water damage. Central heating systems are prone to shut down as a result of power or fuel outages,
safety related fault conditions or equipment failure. Installation of freeze protection monitoring or other precautions
is recommended for unattended dwellings in climates subject to sustained below-freezing temperatures.
126 Bailey Road, North Haven, CT 06473 • Phone (203) 776-0473 • F X (203) 764-1711 •
• DV NCED SOLID ST TE DESIGN
• TEST BUTTON FOR E SY DI GNOSTICS
• POWER, LOW W TER ND SERVICE-NEEDED INDIC TORS
• MOLEX CONNECTOR FOR E SY WIRING
• COMP CT SIZE LLOWS FOR MOUNTING IN TIGHT SP CES
Step
Step
. The
Step
Apply Teflon
the threads of the
Model 1100. Do not
use pipe dope or
other pipe sealants.
Hand tighten the
control into boiler
tapping or pipe tee.
Be careful not to
cross thread.
Note: Do not use a
wrench. Hand tighten
only.
Plug wire harness
into connector on
face of control.
C UTION
To prevent serious
burns, boiler
should be thoroughly cooled before installing or
servicing control.
www.hydrolevel.com
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Related Manuals for safgard 1100
Summary of Contents for safgard 1100
- Page 1 The 1100 can be installed directly into the boiler if a suitable tapping is available . The 1100 can also be installed in the boiler piping using a standard 3/4" tee Step Note: When installing in piping, select a location...
- Page 2 R. WIRING TO AN AQUASTAT For boilers equipped with a Honeywell Model L8148E or L8124E Aquastat. Safgard Model 1100 is not to be used with Model L8148C or L8124C. Safgard Model 1150 should be used for oil-fired boilers.
- Page 3 1100 with wire harness for Weil McLain Ultra, Lochinvar Knight & Solution (cable 45-349) 45-1107 1100H7 1100 with wire harness for connection to vent damper plug on boiler control (cable 45-353) 1100H2 Including 45-348 Harness Note: Wire Harnesses are also sold separately (use cable part numbers above)
- Page 4 IMPORTANT: Do not run boiler unattended until the following procedure is completed 1. Before raising the water level above the Model 1100, turn on power to the boiler and set the thermostat to call for heat. Both the green “POWER” LED and amber “LOW WATER” LED should illuminate. The burner should not fire. IMPORTANT: If the burner fires with no water at the probe, immediately shut down power to the boiler and refer to the Trouble Shooting instructions below.
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