HTP EL-399NVWH - Manual (Page 7)

7
LP- 346 REV. 3.20.14
INSTALLER – Read all instructions in this manual before installing. Perform steps in the order given.
USER – This manual is for use only by a qualified heating installer/service technician. Have this heater serviced/inspected by a
qualified service technician annually.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE AND HAVE THIS HEATER SERVICED/INSPECTED ANNUALLY
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
NOTE: When inquiring about service or troubleshooting, reference the model and serial numbers from the heater rating label.
NOTE: If the heater is exposed to the following, do not operate until all corrective steps have been made by a qualified serviceman:
1. FIRE
2. DAMAGE
3. WATER
Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN SUBMERGED IN WATER. Immediately call a qualified service technician.
The appliance MUST BE replaced if it has been submerged. Attempting to operate an appliance that has been submerged could create
numerous harmful conditions, such as a potential gas leakage causing a fire and/or explosion, or the release of mold, bacteria, or other
harmful particulates into the air. Operating a previously submerged appliance could result in property damage, severe personal injury,
or death.
NOTE: Appliance damage due to flood or submersion is considered an Act of God, and IS NOT covered under product warranty.
Be sure to disconnect electrical power before opening heater cabinet or performing service. Failure to do so could result in an electrical
shock that could result in property damage, serious personal injury, or death.
B. IMPROPER COMBUSTION
C. GAS
Should overheating or gas supply fail to shut off, do not turn off or disconnect
electrical supply to the circulator. Instead, shut off the gas supply at a location
external to the appliance.
D. WHEN SERVICING THE HEATER

To avoid electric shock, disconnect electrical supply before
performing maintenance.

To avoid severe burns, allow heater to cool.
E. HEATER WATER CHEMISTRY*

Water pH between 6.0 and 8.0
o Maintain water pH between 6.0 and 8.0. Check with litmus
paper or have it chemically analyzed by water treatment
company.
o If the pH differs from above, consult local water treatment
company for treatment needed.

Hardness less than 7 grains
o Consult local water treatment companies for unusually hard
water areas (above 7 grains hardness).

Chlorine concentration less than 100 ppm
o Using chlorinated fresh water should be acceptable as levels
are typically less than 5 ppm.
o Do not connect the heater to directly heat swimming pool or spa water.
o Do not fill heater or operate with water containing chlorine in excess of 100 ppm.
Do not obstruct the flow of combustion and ventilating air. Adequate air must be provided for safe operation. Failure to keep the vent
and combustion air intake clear of ice, snow, or other debris could result in property damage, serious personal injury, or death.