Hydrolevel 1100 User Manual

Model 1100

ADVANCED SOLID STATE DESIGN

•

• TEST BUTTON FOR EASY DIAGNOSTICS

• POWER AND LOW WATER LED INDICATORS

Low Water Cut-Off
For Residential

• MOLEX CONNECTOR FOR EASY WIRING

• COMPACT SIZE ALLOWS FOR MOUNTING IN TIGHT SPACES

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 available훽. The
1100 can also be installed in the boiler piping using a
standard 3/4" tee훾.

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.



Step

Step

Step



Apply Teflon®tape to
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.

Electrical shock hazard. To prevent electrical shock, death or

WARNING

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.

WARNING

is recommended for unattended dwellings in climates subject to sustain below-freezing temperatures.

equipment damage, disconnect power supply before

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

83 Water Street • New Haven, CT 06511 • Phone [phone] • FAX [phone] • www.hydrolevel.com

CAUTION

should be thoroughly cooled before installing or
servicing control.

To prevent serious
burns, boiler

WIRING TO CONTROL CENTER

®

or boilers equipped with a Honeywell R8285 Control Center or equivalent

F

Step

Connect the WHITE wire to C and the RED wire to R
using the screw terminals on the control center.
Connect the GREEN wire to any suitable, unpainted
ground screw. Note: for operation of the control, the
green wire must be connected to a ground source
electrically common with boiler ground.



Step



햲 Unplug the factory-wired quick connect from ter-

minal R and 햳 plug into YELLOW wire with
connector. 햴 Plug YELLOW wire with
nector into terminal R.

female

male

con-

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.

Step



Step



햲 Unplug the factory-wired quick

connect from terminal B1 and 햳 plug

Connect the WHITE wire to TV and the RED wire to Z. Connect the
GREEN wire to the ground screw on the bottom of the aquastat or any
other suitable, unpainted ground screw. Note: for operation of the con­trol, the green wire must be connected to a ground source electrically
common with boiler ground.

into YELLOW wire with
tor. 햴 Plug YELLOW wire with
connector into terminal B1.

UPON COMPLETION OF WIRING,
REPLACE COVER.

male

connec-

female