York AFFINITY OptiHeat YAW040 Installation Manual page 7

Field Connected Water Piping cont.
Material
pH Acidity/Alkalinity
Scaling
Magnesium Carbonate
Hydrogen Sulfide
Carbon Dioxide
Corrosion
Ammonia Chloride
Ammonia Nitrate
Ammonia Hydroxide
Ammonia Sulfate
Total Dissolved Solids (TDS)
Iron, FE
Bacterial Iron Potential
Iron Fouling
(Biological Growth)
Suspended Solids
Erosion
Threshold Velocity
NOTES: Grains = ppm divided by 17
mg/L is equivalent to ppm
Water Treatment
Do not use untreated or improperly treated water.
Equipment damage may occur. The use of improperly
treated or untreated water in this equipment may result in
scaling, erosion, corrosion, algae or slime. Purchase of a pre-
mix antifreeze could significantly improve system reliability
if the water quality is controlled and there are additives in
the mixture to inhibit corrosion. There are many examples
of such fluids on the market today such as Environol™ 1000
(pre-mix ethanol), and others. The services of a qualified
water treatment specialist should be engaged to determine
what treatment, if any, is required. The product warranty
specifically excludes liability for corrosion, erosion or
deterioration of equipment.
The heat exchangers and water lines in the units are copper
or cupronickel tube. There may be other materials in the
buildings piping system that the designer may need to take
into consideration when deciding the parameters of the
water quality. If antifreeze or water treatment solution is
to be used, the designer should confirm it does not have a
detrimental effect on the materials in the system .
AFFINITY SINGLE STAGE HYDRONIC WITH OPTIHEAT INSTALLATION MANUAL
Calcium and
less than 350 ppm
Less than 0.5 ppm (rotten egg
smell appears at 0.5 ppm)
Sulfates Less than 125 ppm
Chlorine Less than 0.5 ppm
Chlorides Less than 20 ppm
Less than 50 ppm
Ammonia Less than 2 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 1000 ppm
LSI Index
2 + (Ferrous)
Less than 1 ppm, above this
Iron Oxide
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
(Fresh Water)
Copper 90/10 Cupronickel
7 - 9
(Total Hardness)
+0.5 to -0.5
< 0.2 ppm
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
< 6 ft/sec
Contaminated Water
In applications where the water quality cannot be held to
prescribed limits, the use of a secondary heat exchanger is
recommended to separate the unit from the contaminated
water. The table above outlines the water quality guidelines
for unit heat exchangers. If these conditions are exceeded,
a secondary heat exchanger is required. Failure to supply
a secondary heat exchanger where needed will result in a
warranty exclusion for primary heat exchanger corrosion or
failure.
WARNING: Must have intermediate heat exchanger
when used in pool and spa applications.
7
7 - 9
(Total Hardness)
less than 350 ppm
10 - 50 ppm
Less than 125 ppm
Less than 0.5 ppm
Less than 125 ppm
10 - 50 ppm
Less than 2 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
1000 - 1500 ppm
+0.5 to -0.5
< 0.2 ppm
Less than 1 ppm, above this
level deposition will occur
Less than 10 ppm and filtered
for max. of 600 micron size
< 6 ft/sec
316 Stainless Steel
7 - 9
(Total Hardness)
less than 350 ppm
Less than 1 ppm
Less than 200 ppm
Less than 0.5 ppm
Less than 300 ppm
10 - 50 ppm
Less than 20 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
Less than 0.5 ppm
1000 - 1500 ppm
+0.5 to -0.5
< 0.2 ppm
< 6 ft/sec
2/22/12