HTP EL-399NVWH - Manual (Page 53)

53
LP- 346 REV. 3.20.14
PART 8 – START-UP PREPARATION
A. CHECK / CONTROL WATER CHEMISTRY
Chemical imbalance of your water can cause severe damage to your heater and associated equipment, and may also affect efficiency.
You may have to have your water quality professionally analyzed to determine whether you need to install a water softener. It is
important that the water chemistry on both the domestic hot water and central heating sides are checked before installing the heater, as
water quality will affect the reliability of the system. Outlined below are those water quality parameters which need to be met in order for
the system to operate efficiently for many years. Failure of a heat exchanger due to lime scale build-up on the heating surface,
low pH or other imbalance IS NOT covered by the warranty.
To assure good extended service life, it is recommended that you test your water quality prior to installation. Listed below are some
guidelines.
Do not use petroleum-based cleaning or sealing compounds in the heater system. Damage to elastomer seals and gaskets in the
system could occur, resulting in substantial property damage.
Sodium less than 20 mGL
Water pH between 6.0 and 8.0
1. Maintain heater water pH between 6.0 and 8.0. Check with litmus paper or have it chemically analyzed by a water treatment
company.
2. If the pH differs from above, consult local water treatment company for treatment needed.
Hardness less than 7 grains
Consult local water treatment companies for unusually hard water areas (above 7 grains hardness).
Chlorine concentration less than 100 ppm
1. Using chlorinated fresh water should be acceptable since drinking water chlorine levels are typically less than 5 ppm.
2. Do not connect the heater to directly heat a swimming pool or spa water.
3. Do not fill heater or operate with water containing chlorine in excess of 100 ppm.
Hardness: 7 grains
Chloride levels: 100 ppm
pH levels: 6-8
TDS: 2000 ppm
Sodium: 20 mGL
B. CHECK FOR GAS LEAKS
Before starting the heater, and during initial operation, smell near the floor and around the heater for gas odorant or any unusual odor.
Remove heater front door and smell interior of heater enclosure. Do not proceed with startup if there is any indication of a gas leak.
Repair any leaks at once.
PROPANE HEATERS ONLY – Your propane supplier mixes an odorant with the propane to make its presence detectable. In some
instances, the odorant can fade, and the gas may no longer have an odor. Before startup (and periodically thereafter), have the
propane supplier verify the correct odorant level in the gas.
C. CONDENSATE REMOVAL
1. The heater is a high efficiency condensing heater. Therefore, the unit has a condensate drain. Condensate fluid is nothing more than
water vapor, derived from combustion products, similar to that produced by an automobile when it is initially started.
Condensation is slightly acidic (typically with a pH of 3 to 5) and must be piped with the correct materials. Never pipe the condensate
using steel, copper, brass or other materials that will be subject to corrosion. Plastic PVC or CPVC pipe are the only approved
materials.