Specification

ManualsBrandsAquaPower ManualsPlumbing Product240-Volt 5.7 kW 0.87 GPM Compact Point-of-Use Electric Tankless Water Heater

*AQM 2-1 is internally restricted to 0.32 GPM.

AQM 2-1, 2.5-1, 3-1 ship with a 0.5 GPM pressure compensating ow reducer/aerator that must be installed.

AQM 3.5-1, 4-2 ship with a 0.66 GPM pressure compensating ow reducer/aerator that must be installed.

AQM 6-2 ships with a 1.0 GPM pressure compensating ow reducer/aerator that must be installed.

AQM MODEL

Ultra-Low

Standard

Flow Rate at Sink

0.32

0.50

0.66

High 1.0

Flow

GPM

Recommendations for 240 V units are correct if installed with 240 V service.

Increase one model size if unit will be installed with 208 V service.

Call Aqua Power® at 800.582.2213 if you have any sizing questions, or another out-of-the-ordinary

situation. Aqua Power® service representatives can make recommendations on sizing, or provide

assistance with our water heaters, to both homeowners and professional installers.

AQM Sizing Guide

Single Hand Washing Sink Tankless Electric Water Heater

Cool (Northern) Climate

Inlet water

45°F - 55°F

Cool (Northern) Climate

Inlet water

45°F - 55°F

Warm (Southern) Climate

Inlet water

55°F - 70°F



AQM 2-1*

120 V

Requires 20 A

circuit breaker

AQM 3-1

120 V

Requires 30 A

circuit breaker

AQM 4-2

240 V

Requires 20 A

circuit breaker

AQM 6-2

240 V

Requires 30 A

circuit breaker

AQM 2-1

• Designed for an ultra-low-

ﬂow (.32 gpm) lavatory sink,

providing warm water for hand

washing at about 90–100°F (32-

38°C)

• Heats water 40°F maximum

• An AQM 2-1 could supply, for

example, 0.32

gpm of warm

water at 90°F for hand washing

if incoming cold water was 50°F

AQM 3-1

• Designed for a standard low-

ﬂow (.5 gpm) lavatory sink,

providing warm water for hand

washing at about 90–100°F (32-

38°C)

• Heats water 40°F maximum

• An AQM 3-1 could supply, for

example, 0.5

gpm of warm water

at 90°F for hand washing if

incoming cold water was 50°F

AQM 4-2

• Designed for a standard-

ﬂow (.66 gpm) lavatory sink,

providing warm water for hand

washing at about 90–100°F (32-

38°C)

• Heats water 39°F at a ﬂow rate

of 0.66 GPM

• An AQM 4-2 could supply, for

example, 0.66

gpm of warm

water at 89°F for hand washing

if incoming cold water was 50°F

AQM 6-2

• Designed for a high-ﬂow (1

gpm) lavatory sink, providing

warm water for hand washing

at about 90–100°F (32-38°C)

• Heats water 40°F at a ﬂow rate

of 1.0 GPM

• An AQM 6-1 could supply, for

example, 1.0

gpm of warm water

at 90°F for hand washing if

incoming cold water was 50°F

See next page for Technical Data & Temperature Rise curves.

Summary of content (2 pages)

PAGE 1
AQM Sizing Guide Single Hand Washing Sink Tankless Electric Water Heater AQM MODEL GPM Flow Rate at Sink Flow AQM 3-1 AQM 2-1* AQM 6-2 AQM 4-2 120 V Requires 30 A circuit breaker 120 V Requires 20 A circuit breaker 240 V Requires 30 A circuit breaker 240 V Requires 20 A circuit breaker Ultra-Low 0.32 Standard 0.50 Standard 0.66 High 1.0 *AQM 2-1 is internally restricted to 0.32 GPM. AQM 2-1, 2.5-1, 3-1 ship with a 0.5 GPM pressure compensating flow reducer/aerator that must be installed.
PAGE 2
AQM Series Technical Data Certified to ANSI/UL Std. 499 Conforms to CAN/CSA E335-1 and E335-2-35 Tested and certified by WQA against NSF/ANSI 372 for lead free compliance. ISO 9001 C E R T IFIED Model AQM 2-1* AQM 3-1 AQM 4-2 AQM 6-2 Item No. 612431 612433 612435 612436 Phase - 60/50 Hz 1 Voltage 120 v 120 v 240 v or 208 v 240 v or 208 V Wattage 1.8 kW 3.0 kW 3.5 kW 2.6 kW 5.7 kW 4.3 kW 15 a 25 a 14.6 a 12.7 a 23.8 a 20.