LP-387 Rev. 7.3.15
13
NOTE: DAMAGE TO THE BOILER CAUSED BY EXPOSURE
TO CORROSIVE VAPORS IS NOT COVERED BY
WARRANTY. (Refer to the limited warranty for complete
terms and conditions.)
G of ANSI Z223.1.
Products to Avoid
Areas Likely to Have
Contaminants
Spray cans containing
uorocarbons
Dry cleaning / laundry areas
and establishments
Permanent wave solutions Swimming pools
Chlorinated waxes / cleaners Metal fabrication plants
Chlorine-based swimming pool
chemicals
Beauty shops
Calcium chloride used for thawing Refrigeration repair shops
Sodium chloride used for water
softening
Photo processing plants
Refrigerant leaks Auto body shops
Paint or varnish removers Plastic manufacturing plants
Hydrochloric or Muriatic acid
Furniture renishing areas
and establishments
Cements and glues New building construction
Antistatic fabric softeners used in
clothes dryers
Remodeling areas
Chlorine-type bleaches, laundry
detergents, and cleaning solvents
Garages and workshops
Adhesives used to fasten building
products
Table 2 - Products and Areas Likely to Have Contaminants
Figure 5 - CO Warning Label
I. Water Chemistry Requirements*
Chemical imbalance of the water supply may aect eciency
and cause severe damage to the boiler and associated
equipment. HTP recommends having water quality
professionally analyzed to determine whether it is necessary 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 boiler, as water quality will aect
the reliability of the system. Failure of a boiler due to lime scale
build-up, low pH, or other chemical imbalance IS NOT covered
by the warranty.
• Sodium less than 20 mGL
• Water pH between 6.0 and 8.0
• Maintain water pH between 6.0 and 8.0. Check with
litmus paper or have it chemically analyzed by water
treatment company.
• If the pH diers from above, consult local water
treatment 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
• Using chlorinated fresh water should be acceptable as
levels are typically less than 5 ppm.
• Do not connect the boiler to directly heat swimming
pool or spa water.
• Do not ll 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 maintenance procedure in this
manual.
Hardness: Less than 7 grains
Chloride levels: Less than 100 ppm
pH levels: 6 - 8
Conductivity: Less than 400 uS/cm at 25
o
C
Sodium: Less than 20 mGL
Copper: Less than 0.1 mg/:
Iron: Less than 0.5 mg/L