8
LP-520 REV. 5.1.17
OPTIONAL PARTS (Not Included)
ITEM
DESCRIPTION
PART NUMBER
Threaded ¾” DHW Tankless
Isolation Valves
(With Pressure Relief Valve)
(7850P-090)
2
Vent Screens (2” Mesh)
(7850P-088)
2 Screens
Table 1
– Items Included with the Appliance
PART 2
–
SAFETY REGULATIONS
A. OPERATION AND INSTALLATION WARNINGS
To avoid serious injury or death, read, understand, and follow all the precautions listed here.
Vapors from flammable liquids will explode and can cause a fire, resulting in personal injury or death. The appliance has a burner that
can come on at any time and ignite vapors. DO NOT use or store flammable liquids around the appliance.
Improper venting can cause a build-up of carbon monoxide. Breathing carbon monoxide can result in brain damage or death. DO NOT
operate the appliance unless it is properly vented to the outside and has an adequate fresh air supply for safe operation. Inspect the
exterior exhaust gas outlet port and fresh air inlet port on a regular basis to ensure they are functioning properly.
A concentration of carbon monoxide as small as .04% (400 parts per million) in the air can be fatal. When making high fire or low fire
adjustments, CO levels must be monitored using a flue gas analyzer such that a CO level of no more than 400 ppm is exceeded at any
time during operation.
Adjusting the “low fire offset” on the gas valve in even small increments can result in a significant increase in CO concentration. To
avoid serious injury or death, DO NOT make any adjustments to the gas valve without monitoring the exhaust gases with a fully
functional and calibrated flue gas analyzer.
Failure to follow these statements will result in property damage, severe personal injury, or death.
This appliance 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.
HTP, Inc. 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 appliance
is the user’s responsibility. Ensure the user carefully reads and understands the User’s Information Manual
before operating and maintaining the appliance.
Make sure the user knows the location of the gas shut-off valve and how to operate it. Immediately close the gas shut-off valve if the
appliance is subjected to fire, overheating, flood, physical damage, or any other damaging condition that might affect the operation of
the unit. Have the appliance checked by a qualified technician before resuming operation.
Do not power up the unit unless the gas and water supply valves are fully opened. Make sure the fresh air intake port and exhaust gas
port are open and functional.
No one but a professional service technician should attempt to install, service, or repair this appliance. There are no serviceable parts
which can be changed by the user / owner. User / Owner: Contact the original professional service technician if the appliance needs
repair or maintenance. If the original technician is unavailable, ask your gas supplier for a list of qualified service providers.
Keep the area around the appliance clean and free of all materials that can burn. DO NOT store or place gasoline, oils, spray paint, or
other flammable products near the appliance.
DO NOT use spray paint, hair spray, or any other flammable spray near the appliance or near the exterior fresh air intake port. DO NOT
place any items in or around the exterior exhaust gas outlet port and/or fresh air inlet port that could restrict or block the flow in or out of
the vent system.
DO NOT store or place newspapers, laundry, or other combustible items near the appliance or the exterior exhaust gas outlet and/or
fresh air inlet port.
The owner should inspect the system monthly for damage, water stains, signs of rust, corrosion, and exhaust vent and air intake
blockage. If inspection of the unit shows signs of damage, the appliance should be shut off until the problem is repaired by a qualified
technician.
