Element
Section 3: Installation
L-OMM-0003_A
• 10/8/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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Input Requirements
Natural gas pressure
>3.5in W.C. flowing (872 Pa), <14in W.C. static (3487
Pa). Convertible to use LP gas (propane)
Electrical service
120VAC, 30A
Exhaust venting
Use a Category IV PVC, CPVC or ETL, UL, ULC or
CSA listed stainless steel or Centrotherm InnoFlue SW
Polypropylene vent. Minimum vent length is 5 eq. feet.
See installation manual for specifics.
Inlet Combustion Air Duct
Use PVC or galvanized pipe. 150 eq. ft. using 6in pipe.
Longer lengths are ETL listed with larger diameters:
see installation manual for specifics.
Internet connectivity
Wired via Ethernet RJ-45
Ambient temperature
0 - 130°F (-17.8
– 54.4 °C). Assumes continuous cold
water supply flow.
Table 2 - Element Input Requirements
Cold Water Inlet Requirements
Pressure
15 - 145psi (1000 kPa)
Temperature
Cold: 40 - 100°F (5 - 38 °C)
Recirc: ≤ 180°F (≤ 82.2 °C)
pH
6.5 - 8.5
Hardness
Cold: ≤ 30 grains (≤ 513 ppm CaCO
3
)
Recirc: ≤ 7 grains (≤ 120 ppm CaCO
3
)
Free chlorine
≤ 1 ppm
Iron
≤ 0.3 ppm
Manganese
≤ 0.05 ppm
Phosphates
< 3.0 ppm
Silica
≤ 20 ppm
Oil and H
2
S
Must be removed
TDS
500 mg/L
Copper
< 1.3 ppm
Chloride
≤ 200 ppm
Sulfate
≤ 250 ppm
Table 3 - Element Q Requirements
The Element provides consolidated controls and a single source of service for ease of operation.
Each Element unit is equipped with a hot water system, master mixing, UV disinfection, anti-scale
and a filtration system.
