Install Instructions

40
Start-Up Preparation
SECTION X - Start-Up Preparation
Check Boiler System Water Chemistry
Do not use petroleum-base cleaning or
sealing compounds in the boiler system.
Damage to seals and gaskets in the sys-
tem components could occur, resulting
in substantial property damage.
System water including additives must be
practically non-toxic, having a toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Products.
Water pH Level 6.5 to 8.5
Maintain the boiler water pH between 6.5 and
8.5. Check using litmus paper or contact a water
treatment company for a chemical analysis.
If the pH does not meet this requirement, do not
operate the CHALLENGER or leave the appli-
ance filled, until the condition is corrected.
Water Total Hardness Less Than 7
Grains/Gallon
For areas with unusually hard water (total
hardness above 7 grains/gallon or 120ppm or
mg/l) consult a water treatment company.
Chlorinated Water
Do not use the CHALLENGER to heat a
swimming pool or spa directly.
Maintain the chlorine level of the water at lev-
els considered safe for drinking.
Flush Boiler and Domestic System to
Remove Sediment
The installer must flush the boiler system to
remove any sediment to allow proper operation
of the CHALLENGER .
Flush the systems until the water runs clean
and is free of sediment.
For zoned systems, each zone should be flushed
through a purge valve. Purge valves and isola-
tion valves should be installed on each zone to
allow proper flushing of the system.
Check and Test Antifreeze
For boiler systems containing antifreeze solu-
tions, follow the antifreeze manufacturer’s
instructions in verifying the inhibitor level and
to ensure the fluid characteristics are within
specification requirements.
Due to the degradation of inhibitors over time,
antifreeze fluids must be periodically replaced.
Refer to the manufacturer of the antifreeze for
additional instructions.
System water including additives must be
practically non-toxic, having a toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Products.
WARNING
NOTICE
NOTICE