SM Series Heat Pump
SM Series Heat Pump6 720 220 406 (2015/02) Subject to change without prior notice
30 | Water Quality
WATER QUALITY
ELECTRICAL
Refer to electrical component box layout.
(Figure #97)
Properly sized fuses or HACR circuit breakers must
be installed for branch circuit protection. See unit
nameplate for maximum fuse or breaker size.
Table 1: Water Quality
POTENTIAL
PROBLEM
Water Characteristic Acceptable Value
Copper Cupro-Nickel
pH (Acidity/Alkalinity) 7-9 7-9
SCALING
Hardness (CaCO3,
MgCO3)
< 350 ppm < 350 ppm
Ryznar Stability Index
6.0 - 7.5 6.0 - 7.5
Langelier Saturation Index
-0.5 - +0.5 -0.5 - +0.5
CORROSION
Hydrogen Sulfide (H2S) < 0.5 ppm * 10-50 ppm
Sulfates
< 125 ppm < 125 ppm
Chlorine
< 0.5 ppm < 0.5 ppm
Chlorides
< 20 ppm < 150 ppm
Carbon Dioxide
< 50 ppm < 50 ppm
Ammonia
< 2 ppm < 2 ppm
Ammonia Chloride
< 0.5 ppm < 0.5 ppm
Ammonia Nitrate
< 0.5 ppm < 0.5 ppm
Ammonia Hydroxide
< 0.5 ppm < 0.5 ppm
Ammonia Sulfate
< 0.5 ppm < 0.5 ppm
Dissolved Solids
< 1,000 ppm < 1,500 ppm
IRON FOULING
Iron (Fe2+ Iron Bacteria
Potential)
< 0.2 ppm < 0.2 ppm
Iron Oxide
< 1 ppm < 1 ppm
EROSION
Suspended Solids < 10 ppm, < 600 μm size ** < 10 ppm, < 600 μm size **
Maximum Water Velocity
6 ft/sec 6 ft/sec
* No "rotten egg" smell present at < 0.5 ppm H2S.
** Equivalent to 30 mesh strainer
WARNING: Field wiring must comply
with local and national electric codes.
WARNING: Power to the unit must be
within the operating voltage range
indicated on the unit nameplate or on
the performance data sheet.
NOTE: Operation of unit on improper
line voltage or with excessive phase
imbalance will be hazardous to the unit,
constitutes abuse and may void the
warranty.
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