

Here are Chronomite's high-capacity, three-phase tankless water heaters. These ER-L_3P Series models range from 18.7 Kilowatts to 43.2 kW (depending on the model).
These units provide reliable hot water in multiple point-of-use applications, or single, high-capacity point of use. Each water heater model in this series accomodates a wide range of incoming water flow rates from 0.35 GPM to 4.5 GPM.
Types of installations/applications
≈ Various commercial, hospitality, and industrial applications
≈ Showers
Feature highlights
♦ Tough, Jet-Kote gray steel housing material
♦ Low minimum turn-on flow rate of just 0.35 GPM (1.30 LPM)
♦ Celcon plastic element assembly
♦ Nichrome coils
Product feature details
♦ Ideal for hands-free sensor faucets. No mixing valve needed, saving money.
♦ Saves water and energy at a 99% energy efficiency
♦ Activates at a low water flow rate
♦ Dimensions provide a space-saving compact size: 15.25 x 17.5 x 6.25 inches (387 x 445 x 159 mm)
♦ User can adjust the temperature output from 70°F to 125°F (standard) (21.1°C to 51.7°C)
♦ Digital microprocessor temperature control provides instant response to temperature variations at 120 times per second. The microprocessor allows energy to be used to precisely maintain the water temperature, nothing more.
♦ Factory preset temperature is available as an option for any temperature between 90°F and 160°F (32.2°C to 71.1°C). This setting is permanent.
♦ Multiple points of use are possible with this one heater. Please consult the temperature rise vs. flow rate tables.
♦ Meets applicable building codes including UL, UPC.
♦ Made in USA
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Optional variations
- De-ionized (-DI)
- Satin Finish Stainless Steel Housing (-SS)
- NEMA 4 Grey Finish Housing (-N4)
- NEMA 4 Stainless Steel Finish Housing (-N4X)
- Factory Preset (-F) (Setting is permanent.)
- Electrical disconnect switch
Specifications table
Model | Total Amps |
3 Ø (Phase) Voltage |
Activation flow rate (GPM) |
Temperature rise at various flow rates in GPM |
Watts | ||
---|---|---|---|---|---|---|---|
3.0 | 3.75 | 4.5 | |||||
ER-90L/208_3P | 52 | 208 | 0.35 | 43 ° F | 34 ° F | 28 ° F | 18700 |
ER-42L/480_3P | 24 | 480 | 0.35 | 46 ° F | 36 ° F | 30 ° F | 20000 |
ER-90L/240_3P | 52 | 240 | 0.35 | 49 ° F | 39 ° F | 33 ° F | 21600 |
ER-50L/480_3P | 29 | 480 | 0.35 | 55 ° F | 44 ° F | 36 ° F | 24000 |
ER-120L/208_3P | 69 | 208 | 0.35 | 57 ° F | 45 ° F | 38 ° F | 24960 |
ER-120L/240_3P | 69 | 240 | 0.35 | 66 ° F | 52 ° F | 44 ° F | 28800 |
ER-60L/480_3P | 35 | 480 | 0.35 | 66 ° F | 52 ° F | 44 ° F | 28800 |
ER-67L/480_3P | 38 | 480 | 0.35 | 73 ° F | 58 ° F | 49 ° F | 32000 |
ER-90L/480_3P (this page) |
52 | 480 | 0.35 | 98 ° F | 79 ° F | 66 ° F | 43200 |