lp-770 Rev. 000 Rel. 000 Date 6.21.21
3
Part 1 - General Safety Information
This water heater is approved for indoor installation only and is
not intended for use as a pool heater. Clearance to combustible
materials: 0” top, bottom, sides, and back. Heater must have
room for service: 24” front and 6” sides are recommended service
clearances. (A combustible door or removable panel is acceptable
front clearance. A 3” minimum clearance must be provided from
the appliance front cover to the removable panel or combustible
door.) This water heater has been approved for closet installation
and installation on combustible flooring. Do not install directly on
carpeting. Install the water heater in a location where temperature
and pressure relief valve discharge or a leak will not result in damage
to the surrounding area. If such a location is not available, install an
auxiliary catch pan.
Table of Contents
Part 1 - General Safety Information
3
A. Operation and Installation Warnings
3
B. When Servicing the Water Heating System
4
C. Water Chemistry Requirements
4
D. Freeze Protection
4
E. Water Temperature Adjustment and Scalding
4
Part 2 - Prepare the Water Heater
5
A. Locating the Water Heater
5
B. Clearances for Service Access
6
C. Product Selection - Performance and Sizing Guidelines 7
D. Anode Rod
7
E. Technical Specifications
8
Part 3 - Piping
10
A. General Plumbing Guidelines
10
B. Backflow Preventer
10
C. Potable Expansion Tank
10
D. Pressure Drop Sizing For Circulator
10
E. Boiler Connections
10
F. Hot Water Outlet
10
G. Domestic Piping Inlet
11
H. Temperature and Pressure Relief Valve
11
I. Applications
12
Part 4 - Heater Control and Wiring
13
A. Control
13
B. Wiring
13
C. Wiring Diagrams
13
Part 5 - Start-Up and Operation
15
Part 6 - Maintenance and Troubleshooting
17
Limited Warranty
19
Customer Installation Record Form
21
Installer -
Read all instructions in this manual before installing.
Perform steps in the given order.
User -
This manual is for use only by a qualified heating installer
/ service technician. Have this water heater serviced / inspected
annually by a qualified service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE
PERSONAL INJURY, OR DEATH.
NOTE:
Obey all local codes. Obtain all applicable permits before
installing the water heater.
NOTE:
Install all system components and piping in such a manner
that does not reduce the performance of any fire rated assembly.
A. Operation and Installation Warnings
To avoid serious injury or death, read, understand, and follow all of the
precautions listed here.
Vapors from flammable liquids will explode and can cause a fire,
resulting in personal injury or death. DO NOT use or store flammable
liquids around the water heater.
DO NOT allow children to operate this unit. DO NOT use this unit if
it does not appear to be operating correctly. A qualified technician
should service and inspect the water heater annually.
This water heater must be installed by a licensed plumber, licensed
gas fitter, and/or professional service technician. Improper installation
and/or operation can cause a potentially hazardous situation, which,
if not avoided, could result in serious injury or death, and will void
the warranty.
The manufacturer cannot anticipate every circumstance that might
involve a potential hazard. Each installation has its own specialized
characteristics, requirements, and possible hazards. Therefore, all
possible incidents are not included in these warnings. Proper and
safe installation, operation, and service are the responsibility of the
professional service technician.
Proper care of the water heater is the user’s responsibility. Ensure the
user carefully reads and understands this manual before operating
and maintaining the water heater.
No one but a professional service technician should attempt to install,
service, or repair this water heater. There are no serviceable parts
which can be changed by the user / owner. User / Owner: Contact
the original professional service technician if the water heater needs
repair or maintenance. If the original technician is unavailable, ask
your utility for a list of qualified service providers.
Keep the area around the water heater clean and free of all materials
that can burn. DO NOT store or place gasoline, oils, spray paint, or
other flammable products near the water heater.
After installation, all water heater safety devices should be tested.
This water heater is certified for indoor installations only. Carefully
consider installation location and the placement of critical
components (circulators, etc.) before installing the water heater.
The water heater temperature is factory set to 125
o
F (51.7
o
C). To
avoid scalding, always check the temperature of the hot water
before bathing, showering, washing, etc. DO NOT adjust the water
temperature while the water heater is being used by other persons.
The owner should inspect the system monthly for damage, water
stains, signs of rust or corrosion. If inspection of the unit shows signs
of damage, the water heater should be shut off until the problem is
repaired by a qualified technician.
Any claims for damage or shortage in shipment must be filed
immediately against the transportation company by the consignee.
This water heater provides a overheat shutdown limit. In the event
the water heater water exceeds the set point of the control limit,
the cutoff will trip and the water heater will shut down. Certain local
codes require additional temperature limits. In addition, certain
types of systems may operate at temperatures below the minimum
set point of the limit provided with the water heater. Contact the
manufacturer for additional overheat controls.
