lp-441 Rev. 004 Rel. 000 Date 7.2.21
6
B. Improper Combustion
Do not obstruct the flow of combustion and ventilating air. Adequate
air is necessary for safe operation. Failure to keep the exhaust vent
and combustion air intake clear of ice, snow, or other debris could
result in property damage, serious personal injury, or death.
C. Gas
Should overheating or gas supply fail to shut off, turn off the manual
gas control valve to the water heater.
The appliance is certified for indoor installations only. The appliance
consists of gas ignition system components which must be
protected from water (dripping, spraying, etc.) during operation and
service. Carefully consider installation location and the placement of
critical components (circulators, condensate neutralizers, etc.) before
installing the appliance.
This water heater has been designed to heat potable water ONLY.
Using this water heater to heat non-potable fluid WILL VOID product
warranty, and could result in property damage, personal injury, or
death.
NOTICE
This appliance provides an overheat shutdown limit. In the event
the appliance water temperature exceeds the setpoint of the control
limit, the cutoff will trip and the appliance will shut down. Certain
local codes require additional temperature limits. In addition, certain
types of systems may operate at temperatures below the minimum
setpoint of the limit provided with the appliance. Contact the
manufacturer for additional overheat controls.
CAUTION
High heat sources (sources generating heat 100
o
F / 37
o
C or greater,
such as stove pipes, space heaters, etc.) may damage plastic
components of the water heater as well as plastic vent pipe materials.
Such damages ARE NOT covered by warranty. It is recommended to
keep a minimum clearance of 8” from high heat sources. Observe heat
source manufacturer instructions, as well as local, state, provincial,
and national codes, laws, regulations and ordinances when installing
this water heater and related components near high heat sources.
DO NOT alter or modify the appliance or appliance controls. Altering
any HTP water heater with parts not manufactured by HTP WILL
INSTANTLY VOID the water heater warranty and could result in
property damage, personal injury, or death.
D. When Servicing the Water Heating System
•
To avoid electric shock, disconnect electrical supply before
performing maintenance.
•
To avoid severe burns, allow water heater and associated
equipment to cool before servicing.
Be sure to disconnect electrical power before opening water heater
cabinet or performing service. Label all wires while performing
service to ensure proper re-wiring of the water heater. Wiring errors
can cause improper or dangerous operation. Failure to do so could
result in an electrical shock, improper water heater operation,
property damage, serious personal injury, or death.
•
Do not use petroleum-based cleaning or sealing compounds
in a water heating system. Gaskets and seals in the system
may be damaged. This can result in substantial property
damage.
•
Do not use “homemade cures” or “patent medicines”.
Damage to the water heater, substantial property damage,
and/or serious personal injury may result.
•
Always verify proper operation after servicing the water
heater.
NOTE:
When inquiring about service or troubleshooting, reference
the model and serial numbers from the water heater rating label.
E. Water Chemistry Requirements
Chemical imbalance of the water supply may affect efficiency and
cause severe damage to the appliance and associated equipment.
Water quality must be professionally analyzed to determine
whether it is necessary to treat the water. Various solutions are
available to adjust water quality. Adverse water quality will affect
the reliability of the system. In addition, operating temperatures
above 135
o
F will accelerate the build-up of lime scale and possibly
shorten appliance service life. Failure of an appliance due to
lime scale build-up, low pH, or other chemical imbalance IS NOT
covered by the warranty.
The water must be potable, free of corrosive chemicals, sand,
dirt, and other contaminates. It is up to the installer to ensure the
water does not contain corrosive chemicals or elements that can
damage the heat exchanger. Potable water is defined as drinkable
water supplied from utility or well water in compliance with EPA
secondary maximum contaminant levels (40 CFR Part 143.3). If
the water contains contaminants higher than outlined by the EPA,
water treatment is recommended and additional, more frequent
maintenance may be required.
If you suspect that your water is contaminated in any way,
discontinue use of the appliance and contact an authorized
technician or licensed professional.
• Water pH between 6.5 and 8.5
• pH levels below 6.5 can cause an increase in the rate of
corrosion. pH of 8.5 or higher can potentially cause lime
scale build-up
• Maintain water pH between 6.5 and 8.5. Check with litmus
paper or have it chemically analyzed by a local water
treatment company.
• If the pH is not between 6.5 and 8.5, consult a local water
treatment company for solutions.
• Hardness less than 12 grains (200 mg/L) (Residential Use
- water temperatures below 140
o
F)
• Hardness less than 7 grains (120 mg/L) (Commercial Use
- water temperatures of 140
o
F and greater)
• Hardness levels above the required amounts can lead to
lime scale build-up throughout the system. Water below 5
grains/gallon (85 mg/L) may be over softened.
• Consult local water treatment companies for unusually
hard water areas (above the required amounts) or for
other treatment solutions if water is being over softened
(below 5 grains/gallon [85 mg/L]).
• Chloride concentration less than 100 ppm (mg/L)
• Do not fill appliance or operate with water containing
chlorides in excess of 100 ppm (mg/L).
• Using chlorinated fresh water should be acceptable as
levels are typically less than 5 ppm (mg/L).
• Do not connect the appliance to directly heat swimming
pool or spa water.
This water heater is equipped with a three prong plug. It should only
be plugged directly into a properly grounded three prong receptacle.
DO NOT remove the ground plug from the plug.
