Model M-MM Series
Instant-Flow® Micro Mix® Thermostatic Tankless Water Heater with External Mixing Valve
Ideal Application
- Public lavatory
Features and Benefits
- 0.35 gallon (1.3 liter) per minute low activation
- 0.65 gallon (2.5 liter) per minute standard activation
- Unlimited hot water
- 99% energy efficient
- Maintains consistent water temperature with digital microprocessor technology
- Factory preset 104°F (40°C)
- Meets ADA, UL, IAPMO, UPC, and CSA
- Made in America
- External ASSE 1070 compliant thermostatic mixing valve
Downloads
Specifications
| Product Features | External Mixing Valve |
| Dimensions | 6-1/4"H x 17-1/4" x 2-3/4" |
| Kilowatt Output | 2.40 to 11.08 |
| Activation Flow Rate | 0.35 GPM, 0.65 GPM |
| Brand | Acorn ConTrols® Inside |
Options
Accessories
Miscellaneous
Models
All heaters are single phase powered. | Low Activation Flow Rate: 0.35 Gallon per Minute
| Model | Volts | KW | Amps/Ø | 90°C Wire | Temp Rise at 0.35 GPM | Temp Rise at 0.50 GPM | Temp Rise at 1.00 GPM | Temp Rise at 1.50 GPM | Temp Rise at 2.00 GPM |
|---|---|---|---|---|---|---|---|---|---|
| M-20L/120-MM | 120 | 2.40 | 20 | 12 AWG | 47°F | 33°F | 16°F | 11°F | --- |
| M-30L/120-MM | 120 | 3.60 | 30 | 10 AWG | 70°F | 49°F | 25°F | 16°F | 12°F |
| M-20L/208-MM | 208 | 4.16 | 20 | 12 AWG | 81°F | 57°F | 28°F | 19°F | 14°F |
| M-30L/208-MM | 208 | 6.24 | 30 | 10 AWG | 90°F + | 85°F | 43°F | 28°F | 21°F |
| M-40L/208-MM | 208 | 8.32 | 40 | 8 AWG | 90°F + | 90°F + | 57°F | 38°F | 28°F |
| M-20L/240-MM | 240 | 4.80 | 20 | 12 AWG | 94°F | 66°F | 33°F | 22°F | 16°F |
| M-30L/240-MM | 240 | 7.20 | 30 | 10 AWG | 90°F + | 98°F | 49°F | 33°F | 25°F |
| M-40L/240-MM | 240 | 9.60 | 40 | 8 AWG | 90°F + | 90°F + | 66°F | 44°F | 33°F |
| M-15L/277-MM | 277 | 4.15 | 15 | 14 AWG | 81°F | 57°F | 28°F | 19°F | 14°F |
| M-20L/277-MM | 277 | 5.54 | 20 | 12 AWG | 90°F + | 76°F | 38°F | 25°F | 19°F |
| M-30L/277-MM | 277 | 8.32 | 30 | 10 AWG | 90°F + | 90°F + | 57°F | 38°F | 28°F |
All heaters are single phase powered. | Metric Low Activation Flow Rate: 1.3 Liters per Minute
| Model | Volts | KW | Amps/Ø | 90°C Wire | Temp Rise at 1.3 LPM | Temp Rise at 1.9 LPM | Temp Rise at 3.8 LPM | Temp Rise at 5.7 LPM | Temp Rise at 7.6 LPM |
|---|---|---|---|---|---|---|---|---|---|
| M-20L/120-MM | 120 | 2.40 | 20 | 12 AWG | 26°C | 18°C | 9°C | 6°C | --- |
| M-30L/120-MM | 120 | 3.60 | 30 | 10 AWG | 39°C | 27°C | 14°C | 9°C | 7°C |
| M-20L/208-MM | 208 | 4.16 | 20 | 12 AWG | 45°C | 32°C | 16°C | 11°C | 8°C |
| M-30L/208-MM | 208 | 6.24 | 30 | 10 AWG | 50°C+ | 47°C | 24°C | 16°C | 12°C |
| M-40L/208-MM | 208 | 8.32 | 40 | 8 AWG | 50°C+ | 50°C+ | 32°C | 21°C | 16°C |
| M-20L/240-MM | 240 | 4.80 | 20 | 12 AWG | 50°C+ | 36°C | 18°C | 12°C | 9°C |
| M-30L/240-MM | 240 | 7.20 | 30 | 10 AWG | 50°C+ | 50°C+ | 27°C | 18°C | 14°C |
| M-40L/240-MM | 240 | 9.60 | 40 | 8 AWG | 50°C+ | 50°C+ | 36°C | 24°C | 18°C |
| M-15L/277-MM | 277 | 4.15 | 15 | 14 AWG | 45°C | 31°C | 16°C | 10°C | 8°C |
| M-20L/277-MM | 277 | 5.54 | 20 | 12 AWG | 50°C+ | 42°C | 21°C | 14°C | 11°C |
| M-30L/277-MM | 277 | 8.32 | 30 | 10 AWG | 50°C+ | 50°C+ | 32°C | 21°C | 16°C |
All heaters are single phase powered. | Standard Activation Flow Rate: 0.65 Gallon per Minute
| Model | Volts | KW | Amps/Ø | 90°C Wire | Temp Rise at 0.65 GPM | Temp Rise at 1.00 GPM | Temp Rise at 1.50 GPM | Temp Rise at 2.00 GPM |
|---|---|---|---|---|---|---|---|---|
| M-30/208-MM | 208 | 6.24 | 30 | 10 AWG | 66°F | 43°F | 28°F | 21°F |
| M-40/208-MM | 208 | 8.32 | 40 | 8 AWG | 87°F | 57°F | 38°F | 28°F |
| M-30/240-MM | 240 | 7.2 | 30 | 10 AWG | 76°F | 49°F | 33°F | 25°F |
| M-40/240-MM | 240 | 9.6 | 40 | 8 AWG | 90°F + | 66°F | 44°F | 33°F |
| M-20/277-MM | 277 | 5.54 | 20 | 12 AWG | 58°F | 38°F | 25°F | 19°F |
| M-30/277-MM | 277 | 8.31 | 30 | 10 AWG | 87°F | 57°F | 38°F | 28°F |
| M-40/277-MM | 277 | 11.08 | 40 | 8 AWG | 90°F + | 76°F | 50°F | 38°F |
All heaters are single phase powered. | Metric Standard Activation Flow Rate: 2.5 Liters per Minute
| Model | Volts | KW | Amps/Ø | 90°C Wire | Temp Rise at 2.5 LPM | Temp Rise at 3.8 LPM | Temp Rise at 5.7 LPM | Temp Rise at 7.6 LPM |
|---|---|---|---|---|---|---|---|---|
| M-30/208-MM | 208 | 6.24 | 30 | 10 AWG | 36°C | 24°C | 16°C | 12°C |
| M-40/208-MM | 208 | 8.32 | 40 | 8 AWG | 49°C | 32°C | 21°C | 16°C |
| M-30/240-MM | 240 | 7.2 | 30 | 10 AWG | 42°C | 27°C | 18°C | 14°C |
| M-40/240-MM | 240 | 9.6 | 40 | 8 AWG | 50°C+ | 36°C | 24°C | 18°C |
| M-20/277-MM | 277 | 5.54 | 20 | 12 AWG | 32°C | 21°C | 14°C | 11°C |
| M-30/277-MM | 277 | 8.31 | 30 | 10 AWG | 49°C | 32°C | 21°C | 16°C |
| M-40/277-MM | 277 | 11.08 | 40 | 8 AWG | 50°C+ | 42°C | 28°C | 21°C |










