HTP ELP-199 - Manual (Page 9)

9
LP-294 REV. 2.20.14

Continual fresh make-up water will reduce boiler life. Mineral buildup reduces heat transfer, overheats the stainless steel heat
exchanger, and causes failure. Addition of oxygen by make-up water can cause internal corrosion in system components.
Leaks in the boiler or piping must be repaired at once.

If you have an old system with cast iron radiators, thoroughly flush the system (without boiler connected) to remove sediment.
The high-efficiency heat exchanger can be damaged by build-up or corrosion due to sediment.
NOTE: DO NOT add cold make up water to the system when the boiler is hot. Thermal shock can potentially cause cracks in the heat
exchanger. Such damage IS NOT covered by warranty.
F. BOILER WATER CHEMISTRY

Sodium less than 20 mGL.

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 boiler to directly heat swimming pool
or spa water.
o Do not fill boiler or operate with water containing
chlorine in excess of 100 ppm.
NOTE: It is recommended to clean the heat exchanger at least once a
year to prevent lime scale buildup. To clean the heat exchanger, follow the procedure in Part 16 of this manual.
Hardness: 7 grains
Chloride levels: 100 ppm
pH levels: 6-8
TDS: 2000 ppm
Sodium: 20 mGL
G. FREEZE PROTECTION FLUIDS
NEVER use any toxic chemical, including automotive, standard glycol antifreeze, or ethylene glycol made for hydronic (non-potable)
systems. These chemicals can attack gaskets and seals in water boilers, are poisonous if consumed, and can cause injury or death.
Consider boiler piping and installation when determining boiler location.
NOTE: Damages resulting from incorrect installation or from use of products not approved by HTP, Inc. ARE NOT covered by warranty.
PART 2 – BEFORE YOU START
A. WHAT’S IN THE BOX
Also included with the boiler:

Temperature and Pressure Gauge

Pressure Relief Valve

Indirect Sensor

Outdoor Sensor

Intake PVC Tee with Screens

Exhaust PVC Coupling with Screens

Outlet Combination Fitting

Installation Manual

Warranty