Install Instructions

ManualsBrandsHydrolevel ManualsHeating SuppliesElectronic Low Water Cutoff with Auto Reset -120V (Water)

83 Water St. • New Haven, CT 06511 • Phone: (203) 776-0473 • FAX: (203) 773-1019 • www.hydrolevel.com

• ADVANCED SOLID STATE DESIGN

• TEST BUTTON FOR EASY DIAGNOSTICS

• POWER AND LOW WATER LED INDICATORS

• COMPACT SIZE ALLOWS FOR MOUNTING IN TIGHT SPACES

• DESIGNED FOR GAS AND OIL FIRED BOILERS

Step

➊

Step

➋

Step

➌

Low Water Cut-Off

For Residential

Hot Water Boilers

120 VAC Operating Voltage

Model 1150

Determine Mounting Location

The Safgard 1150 must be installed at or above the

minimum safe water level established by the boiler

manufacturer. The 1150 can be installed directly into

the boiler if a suitable tapping is available



. The

1150 can also be installed in the boiler piping using a

standard 3/4" tee



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.

Apply pipe

sealing

compound to

probe threads

and install in

boiler or tee.

Tighten so that

the mounting

screws are

horizontally

aligned.

Remove wing nut from the probe terminal. Mount the

control box on the probe by aligning the keyhole slots

with the mounting screws. Replace the wing nut.

Secure the control box by tightening wing nut and

two mounting screws.

IMPORTANT: Wing nut and mounting screws

must be tightened securely for proper grounding.

WARNING: To prevent electrical shock or equipment damage, power must be off during installation or servicing of the control. To pre-

vent serious burns, the boiler should be thoroughly cooled before installing or servicing control. Only qualified personnel may install or

service the control in accordance with local codes and ordinances. Read instructions completely before proceeding.

Summary of content (4 pages)

PAGE 1
• ADVANCED SOLID STATE DESIGN • TEST BUTTON FOR EASY DIAGNOSTICS Model 1150 Low Water Cut-Off For Residential Hot Water Boilers • POWER AND LOW WATER LED INDICATORS • COMPACT SIZE ALLOWS FOR MOUNTING IN TIGHT SPACES • DESIGNED FOR GAS AND OIL FIRED BOILERS 120 VAC Operating Voltage WARNING: To prevent electrical shock or equipment damage, power must be off during installation or servicing of the control.
PAGE 2
STANDARD WIRING METHOD USE WIRE NUTS FOR ALL CONNECTIONS This wiring method will shut down all power to the boiler in the event of a low water condition. ➊ Step ➋ ➊ Connect the black wire (H) and one of the yellow wires (CUT-OFF) from the Safgard 1150 to the hot 120 VAC lead coming from the service switch. Step ➋ Connect the white wire (N) from the Safgard 1150 to the neutral 120 VAC lead and to the (L2) boiler connection.
PAGE 3
OPERATIONAL TEST PROCEDURE IMPORTANT: Do not run boiler unattended until the following procedure is completed 1. Before raising the water level above the Model 1150, 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. 2.
PAGE 4
DIMENSIONS SPECIFICATIONS VOLTAGE 120 VAC, 60 HZ BURNER CONTACTS 5.8 FLA, 34.8 LRA, 125 VA pilot duty @ 120 VAC, 60 HZ MAX PRESSURE 160 PSI MAX WATER TEMPERATURE 250°F (121°C) LIMITED MANUFACTURER’S WARRANTY We warrant products manufactured by Hydrolevel Company to be free from defects in material and workmanship for a period of two years from the date of manufacture or one year from the date of installation, whichever occurs first.