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 9

 

3) ELECTRICAL HOOK-UP

This heater must have its own independent circuit using insulated, UL listed, 2 wire cable (2 wire plus ground) of 
the appropriate size suitable for up to 75°C and protected by the correctly rated circuit breaker. For 
recommended copper wiring for conductors with a temperature rating of 75°C refer to the chart below: 

ELECTRICAL SPECIFICATIONS 

BEFORE BEGINNING ANY WORK ON THIS INSTALLATION, BE SURE THAT THE 

ELECTRICAL BREAKER IS “OFF” AND THAT ALL MOUNTING AND PLUMBING WORK HAS 

BEEN COMPLETED PER THESE INSTRUCTIONS. 

AccuMix II model number 

Voltage 

(VAC) 

Max power 

(kW) 

Max current 

(A) 

Minimum wire size 

(AWG) @75°C rating 

AM004120T 

120 

3.5 

29 

10 

AM005240T 

240 

4.8 

20 

14 

AM007240T 

240 

6.5 

27 

10 

AM010240T 

240 

9.5 

40 

AM012240T 

240 

11.5 

48 

AM004277T 

277 

4.1 

15 

14 

AM008277T 

277 

8.0 

29 

10 

AM010277T 

277 

10.0 

36 

1.

Power cable entry to the heater should be made

through one of the knock-out holes located on the 

back plate or top/bottom ends of the unit. Use the 

appropriate strain relief fitting.  

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Summary of Contents for AccuMix II

Page 1: ...INSTALLATION GUIDE AND OWNER S MANUAL AccuMix II ELECTRIC INSTANTANEOUS WATER HEATER WITH ASSE 1070 APPROVED MIXING VALVE ...

Page 2: ...2 Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless commercial sinks html Authorized Eemax Distributor ...

Page 3: ...erstand these requirements before beginning this installation This unit is not required by UL 499 to employ a temperature and pressure relief valve T P You should check with local codes to find out if one is required If it is it must be installed in the outlet hot water pipe between the heater and the isolation valve IMPORTANT SAFETY INSTRUCTIONS When using this electrical equipment basic safety p...

Page 4: ...ble for handwashing and other mild temperature uses up to a factory preset of 105 F The unit employs a complex algorithm that actively manages power application to real time system demand An integrated flow meter along with inlet and outlet thermistors provide data that allows the heater to instantly adapt to variations in flow and temperature It is also equipped with an ASSE 1070 2004 approved mi...

Page 5: ...l position is fittings pointed down but the heater can be mounted in any orientation 2 Make sure to leave a minimum of 8 inches service clearance at the end OPPOSITE the fittings 3 Remove the cover and fasten to the wall using the four mounting holes at each corner of the back plate Replace the cover Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless commercial sinks html Authorize...

Page 6: ...e inlet of the heater Clean screen periodically for best performance of the mixing valve BEFORE ATTEMPTING ANY INSTALLATION MODIFICATION OR SERVICE OF THIS HEATER MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED NEVER SUBSTITUTE THREADED PIPE FITTINGS USING PIPE DOPE OR TEFLON TAPE AND NEVER SOLDER ANY PIPE CONNECTIONS WHILE ATTACHED TO THIS HEATER BECAUSE DAMAGE TO THE HEATER WILL RESULT DOING THIS...

Page 7: ...ly open the inlet and outlet ball valves Check the system for water leaks at all plumbing connections If a leak is present at the compression fitting slowly tighten compression nut until it stops do not overtighten Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless commercial sinks html Authorized Eemax Distributor ...

Page 8: ...ll the aerator if supplied Failure to install aerator if supplied will result in lower than expected heater performance Model of Aerators AM004120T 1 AM005240T 1 AM007240T 2 AM010240T 3 AM012240T 4 AM004277T 1 AM008277T 2 AM010277T 3 Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless commercial sinks html Authorized Eemax Distributor ...

Page 9: ... ALL MOUNTING AND PLUMBING WORK HAS BEEN COMPLETED PER THESE INSTRUCTIONS AccuMix II model number Voltage VAC Max power kW Max current A Minimum wire size AWG 75 C rating AM004120T 120 3 5 29 10 AM005240T 240 4 8 20 14 AM007240T 240 6 5 27 10 AM010240T 240 9 5 40 8 AM012240T 240 11 5 48 8 AM004277T 277 4 1 15 14 AM008277T 277 8 0 29 10 AM010277T 277 10 0 36 8 1 Power cable entry to the heater shou...

Page 10: ...IN SERIOUS INJURY DEATH AND OR PROPERTY DAMAGE 3 Optional The heater comes preset in silent mode If silent mode is the intended use please proceed to step 4 To switch between silent and non silent operation place the jumper on the control board in position D 4 Leave the breaker in the OFF position Proceed to the next section COMMISSIONING THE HEATER Downloaded from https gadgetsgo com Eemax Accumi...

Page 11: ...next step 4 The display on the circuit board should come ON With the flow running the heater will go through the 60 seconds startup self calibration procedure The display will count down from 60 to 0 When the display timer reaches 45 the unit starts heating and continues counting down to 0 5 After the 60 seconds in step 4 the display will show the temperature setpoint The heater is commissioned at...

Page 12: ...0T 66 33 22 49 24 16 AM007240T 89 44 30 66 33 22 AM010240T 130 65 43 97 48 32 AM012240T 157 79 52 118 59 39 AM004277T 56 28 19 x x x AM008277T 109 55 36 x x x AM010277T 137 68 46 x x x The heaters actual temperature rises are limited by their thermostatic controls The theoretical values shown above are only for comparison purposes Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless ...

Page 13: ... stated heater specifications unit shuts down have certified personnel verify the inlet voltage inlet voltage drops below fault threshold F36 Undervoltage inlet voltage is too low compared to the stated heater specifications unit keeps running at reduced performance lower outlet temperature have certified personnel verify the inlet voltage inlet voltage rises over fault threshold F38 High flow flo...

Page 14: ...s remain active Still having trouble Please call our Technical Service Department 6 PERIODIC MAINTENANCE This heater is designed for many years of carefree use In order to maintain consistent water flow it may be necessary to periodically clean the faucet aerator or the filter screen located in the brass inlet fitting at the heater Heating chamber Triacs Energy cut off ECO Control board Contactor ...

Page 15: ...77 EX253B EX278A KIT AM010240T EX630 EX384 240 EX255B EX278A KIT AM010277T EX760 EX384 277 EX253B EX278A KIT AM012240T EX500 PRT EX384 240 EX1050 1 contactor EX278A KIT If you need any assistance from our Technical Service Department make sure you can identify this water heater by having the model no ____________________ and serial number _____________________ Call 203 267 7890 or toll free 800 54...

Page 16: ...lle Drive Waterbury CT 06705 Tel 800 543 6163 203 267 7890 Fax 203 267 7975 email support eemaxinc com EX07200 83 Rev A Downloaded from https gadgetsgo com Eemax Accumix II 277V tankless commercial sinks html Authorized Eemax Distributor ...

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