Tankless Water Heaters - Commercial 208 Volt (AC) Operation, 240 VAC Rating 2 Chamber





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PRODUCT SPECIFICATIONS TABLE
COMMERCIAL 208 VOLT (AC) OPERATION, 240 VAC RATING

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Commercial and industrial locations are often served by 208 V three-phase electrical services. Where 240-V rated tankless water heaters are used at 208 V, their available wattage, and therefore their temperature rise, are de-rated by 25%. The table below shows which ratings are affected. Other specifications are the same as for 240 V operation.

TWO CHAMBER MODELS

MODEL	RA-14	RA-11	RA-9
kW	10.5	8.25	6.75
Elements	7000 watts ' 2	5500 watts ' 2	4500 watts ' 2
BTU/hour	35830	28150	23030
kg-cal/min.	150	118	96
Temperature Rise	71 °F @ 1.0 GPM 48 °F @ 1.5 GPM 36 °F @ 2.0 GPM 28 °F @ 2.5 GPM 37 °C @ 4 L/min 25 °C @ 6 L/min 19 °C @ 8 L/min 15 °C @ 10 L/min	56 °F @ 1.0 GPM 37 °F @ 1.5 GPM 27 °F @ 2.0 GPM 22 °F @ 2.5 GPM 29 °C @ 4 L/min 19 °C @ 6 L/min 15 °C @ 8 L/min 12 °C @ 10 L/min	45 °F @ 1.0 GPM 30 °F @ 1.5 GPM 22 °F @ 2.0 GPM 18 °F @ 2.5 GPM 24 °C @ 4 L/min 15 °C @ 6 L/min 12 °C @ 8 L/min 9 °C @ 10 L/min
ELECTRICAL
V	208	208	208
A (max)	50.5	39.5	32.5
Hz	50 / 60	50 / 60	50 / 60
Circuits	30A x 2	50A x 1	40A x 1