Instructions / Assembly
whl-647 Rev. 000 Rel. 000 Date 8.11.17
6
Table 3 - Element Kits and Corresponding Wattages / Voltages - For Element Kit Part #’s, See Replacement Parts, This Manual - *If Converted to
Non-Simultaneous Operation
Table 4 - For Reference Use Only - *If Converted to
Non-Simultaneous Operation
Input
Wattage
Two Element Single or Three Phase
Non-Simultaneous* Operation
Amperages by Voltage and Input
208 240 277 480
4,150 19.9 -
-
-
4,500 21.6 18.8 9.4
4,700
-
- 16.8
5,000 20.8 18.1 10.4
5,350 - 19.2 -
5,500 22.9 - 11.5
6,000 - 21.6 12.5
Input
Wattage
Two Element Single or Three Phase Simultaneous Operation
Amperages by Voltage, Phase, and Input
208 Volts 240 Volts 277 Volts 480 Volts
Single
Phase
Three
Phase
Single
Phase
Three
Phase
Single
Phase
Three
Phase
Single
Phase
Three
Phase
12,500 59.7 34.7 - - - - - -
13,500 64.8 37.8 56.4 32.4 - - 28.1 16.2
14,000 - - - - 50.4 29.1 - -
15,000 - - 62.5 36.0 54.3 31.2 31.3 18
16,000 - - - - 57.7 33.3 - -
16,500 - - 68.8 39.6 - - 34.4 19.8
18,000 - - - - 64.9 37.4 37.5 21.6
Table 5 - For Reference Use Only
Gallons # Elements and Thermostats Non-Simultaneous* Simultaneous 208 240 277 480
80, 100, 115 3
4,150 12,500
YES
NO
NO
NO
4,500 13,500 YES YES
4,700 14,000
NO
NO
YES
NO
5,000 15,000 YES YES
5,350 16,000 NO NO
5,500 16,500 YES NO YES
6,000 18,000 NO YES YES
Failure of electric elements due to lime scale build-up on the
heating surface, low pH, or other imbalance IS NOT covered by
the warranty.
maximum contaminant levels (40 CFR Part 143.3). If the water contains
contaminants higher than outlined by the EPA, water treatment is
recommended and additional, more frequent maintenance may be
required.
If you suspect that your water is contaminated in any way, discontinue
use of the appliance and contact an authorized technician or licensed
professional.
• Water pH between 6.5 and 8.5
• pH levels below 6.5 can cause an increase in the rate of
corrosion. pH of 8.5 or higher can potentially cause lime scale
build-up
• Maintain water pH between 6.5 and 8.5. Check with litmus
paper or have it chemically analyzed by a local water
treatment company.
• If the pH is not between 6.5 and 8.5, consult a local water
treatment company for solutions.
• Hardness less than 7 grains (120 mg/L) (Commercial Use -
water temperatures of 140
o
F and greater)
• Hardness levels above the required amounts can lead to lime
scale build-up throughout the system. Water below 5 grains/
gallon (85 mg/L) may be over softened.
• Consult local water treatment companies for unusually
hard water areas (above the required amounts) or for other
treatment solutions if water is being over softened (below 5
grains/gallon [85 mg/L]).
• Chloride concentration less than 100 ppm (mg/L)
• Do not ll appliance or operate with water containing
chlorides in excess of 100 ppm (mg/L).
• Using chlorinated fresh water should be acceptable as
levels are typically less than 5 ppm (mg/L).
• Do not connect the appliance to directly heat swimming
pool or spa water.
• Total Dissolved Solids (TDS) less than 500 ppm (mg/L)
• Total dissolved solids are minerals, salts, metals, and
charged particles that are dissolved in water.
• The greater the amounts of TDS present, the higher the
corrosion potential due to increased conductivity in the
water.
• If using softened water to ll the appliance, it is still
possible to have high TDS. This water can be corrosive.
Consult local water treatment companies for other
treatment solutions to reduce this aect.
*NOTE: To promote appliance service life, it is strongly
recommended to follow the maintenance procedures in this
manual.