Lochinvar LHC 119 User Manual

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE
ADJUSTMENT OR SERVICE IS REQUIRED.
PRINTED 0522 100358519_2000199939G
Instruction Manual
COMMERCIAL ELECTRIC WATER HEATERS
300 Maddox Simpson Parkway
Lebanon, TN 37090
Technical Service Phone: 1-800-722-2101
Technical Service email: 2tech@lochinvar.com
www.Lochinvar.com
LOW LEAD
CONTENT
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Thank you for buying this energy efcient water heater. We
appreciate your condence in our products.
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
MODELS LHS 50/80/119 Series 100
& LHC 50/80/119 Series 100
Installation - Service
- Maintenance - Operation
If the water heater becomes immersed in water up to or
above the level of the bottom of the element doors,
the heater should be examined by a qualified service
agency before it is placed in operation.
Electrical Shock Hazard

Lochinvar LHC 119 Specifications

General

Category	Water Heater
BTU Input	119, 000 BTU/hr
Efficiency	95%
Fuel Type	Natural Gas
Venting	Direct Vent
Input	119, 000 BTU/hr

Summary

SAFE INSTALLATION, USE, AND SERVICE

GENERAL SAFETY INFORMATION

HAZARD MESSAGES

Safety alert symbols and warnings for potential injury or damage.

INSTALLATION CONSIDERATIONS

INSTALLING THE WATER HEATER

TEMPERATURE-PRESSURE RELIEF VALVE

Requirements and installation of the T&P relief valve for safety.

THERMAL EXPANSION

Understanding and mitigating thermal expansion issues in closed systems.

ELECTRICAL

Electrical connection requirements, grounding, and circuit protection.

START UP AND OPERATION

FILLING THE WATER HEATER

Crucial steps for filling the tank before powering on the unit.

INITIAL START UP

Post-installation checks and initial power-up procedures.

TEMPERATURE REGULATION

LIMITING THE RISK OF SCALDING

Precautions to prevent dangerously hot water from reaching fixtures.

HIGH TEMPERATURE LIMIT CONTROLS (ECO)

Function and reset procedure for the ECO high temperature limit control.

THERMOSTAT SETTINGS - SURFACE MOUNT CONTROL

THERMOSTAT SETTINGS - ELECTRONIC CONTROLS

CONTROL SYSTEM OPERATION

Temperatures Menu

Economy Mode Setup Menu

Configuring economy set points and operating schedules for energy savings.

Time Clock Settings

Daily Operating Mode Settings

Current Fault / Alert Menu

Displaying active fault or alert messages from the control system.

Fault History Menu

Reviewing a log of past fault and alert messages with timestamps.

MAINTENANCE

TEMPERATURE-PRESSURE RELIEF VALVE TEST

TROUBLESHOOTING

NOT ENOUGH OR NO HOT WATER

Common causes and checks for insufficient hot water supply.

WATER IS TOO HOT

Guidance on addressing excessively hot water temperatures.

WATER HEATER MAKES STRANGE SOUNDS

IF YOU CANNOT IDENTIFY OR CORRECT THE SOURCE OF MALFUNCTION

Steps to take when troubleshooting fails, including contacting support.

CHECKING FOR LEAKS

Identifying potential leak points on the water heater and connections.