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INSTALLATION INSTRUCTIONS
ELECTRIC INSTANTANEOUS WATER HEATERS WITH
208 and 480 VAC three phase 32 – 126 kW
Read and understand these instructions thoroughly before attempting the installation or service of this water
heater. This heater must be used to heat water only and be in a location where it is not subject to freezing
temperatures. If a water softener is used, the softener must be well-maintained and in good working order.
Any maintenance issues with a water softener could be detrimental to the operation or longevity of your
Eemax tankless water heater. The manufacturer is not liable for any damages resulting from improper
installation or misuse. The warranty of this water heater will depend upon the proper installation according
to these instructions. Refer to the warranty card packaged with this heater.
This installation must conform to the latest requirements of the National Electrical Code and all applicable
state and local codes. This information is available through your local authorities. You must understand and
comply with these requirements before beginning this installation. Eemax recommends your heater be
installed by a licensed plumber and electrician. User instructions for the unit controls start on page 6.
This unit is not required by UL 499 to have a Temperature and Pressure relief valve (T&P). You should check
with local codes to find out if one is required in your area. If it is, it must be installed in the outlet hot water
pipe between the heater and the isolation valve.
This heater features a user friendly digital interface for ease of operation. Information is displayed through
a 16 character alpha numeric LCD and is controlled by 4 simple push buttons. The unit features silent
operation and internal diagnostics. The desired temperature can easily be set or altered as necessary. Once
the desired temperature is achieved, the control can be locked to avoid tampering.
EX07200-15 Rev 3
OWNER'S MANUAL
600 VAC three phase 130-150 kW
BEFORE ATTEMPTING ANY INSTALLATION OR SERVICE OF THIS
HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN
SERIOUS INJURY, DEATH AND/OR PROPERTY DAMAGE.
AND
PhD
1
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Summary of Contents for EemaX 208 VAC
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Page 1: Installation Instructions
Any maintenance issues with a water softener could be detrimental to the operation or longevity of your Eemax tankless water heater. The manufacturer is not liable for any damages resulting from improper installation or misuse. The warranty of this water heater will depend upon the proper installation according to these instructions. -
Page 2: Table Of Contents
SAVE THESE INSTRUCTIONS TABLE OF CONTENTS 1) MOUNTING THE HEATER TO THE WALL ………………………………………………………… PAGE 3 2) PLUMBING HOOK-UP …………………………………………………………………………………… PAGE 3 3) ELECTRICAL HOOK-UP ………………………………………………………………………………….. PAGE 4 4) COMMISSIONING THE HEATER …………………………………………………………………….. PAGE 5 5) CONTROL FEATURES ……………………………………………………………………………………. PAGE 6 6) REPAIR PARTS ……………………………………………………………………………………………. -
Page 3: Mounting The Heater To The Wall
1) MOUNTING THE HEATER TO THE WALL Your heater may or may not be installed in a NEMA 4/4X cabinet. Please follow the mounting instructions as appropriate to your installation. Whenever possible, locate the heater as close to the point of hot water use as possible. -
Page 4: Electrical Hook-Up
Eemax requires an inlet Y-strainer with 40 mesh strainer screen be installed for unit debris protection and warranty coverage. Eemax also commends 2 unions, 2 full flow ball valves and two drain plugs be installed for future serviceability. These components are supplied by others. -
Page 5: Commissioning The Heater
ELECTRICAL SPECIFICATIONS VOLTS AMPS RECOMMENDED MODEL 3-PHASE DELTA PER PHASE WIRE SIZE (CU) 90° C AP032208 3 AWG AP041208 2 AWG AP054208 AP064208 AP036480 8 AWG AP048480 6 AWG AP054480 6 AWG AP072480 3 AWG AP108480 1 AWG AP126480 AP130600 1 AWG AP150600 4) COMMISSIONING THE HEATER... -
Page 6: Control Features
TEMPERATURE RISE AT SPECIFIED FLOW RATE, DEGREES F: TURN-ON 12.0 20.0 25.0 30.0 MODEL AP032208 AP041208 AP054208 AP064208 AP036480 AP048480 AP054480 AP072480 AP108480 AP126480 AP130600 AP150600 * Temperature limited to preset value 5) CONTROL FEATURES BEFORE USING THIS CONTROL, MAKE SURE ALL PRIOR INSTALLATION STEPS HAVE BEEN PROPERLY COMPLETED, ELECTRICAL POWER IS ON AND WATER IS PRESENT IN THE HEATER. - Page 7 5) The LEFT and RIGHT buttons shift the display from one screen to another. From the INLET TEMP screen, one press of the RIGHT button will shift the display to the SETPOINT TEMP screen. INLET TEMP shows the actual temperature of the water entering the heater. 6) From the SETPOINT TEMP screen, one press of the RIGHT button will shift the display to the ACTUAL TEMP screen.
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Page 8: Error Codes
FAULT screen and back again every 3 seconds. FAULTS indicate an undesirable condition and will immediately shut down the operation of the heater. If faults are appearing on your heater call Eemax Technical Support for assistance. FAULT CODES: F0: Thermistor out of range... -
Page 9: Repair Parts
13) The display can be turned off or on. Press and hold the DOWN and RIGHT buttons for 3 seconds. If the display is off, it can be turned on by pressing and holding the same DOWN and RIGHT buttons for 3 seconds. -
Page 10: Repair Parts
REPAIR PARTS Control Flow Meter Hall Effect Model Transformer Board Fuse Board AP032208 EX08303-07 EX08300-00 EX198 EX78000-00 EX08601-00 AP041208 EX08303-07 EX08300-00 EX08200-11 EX78000-00 EX08601-00 AP054208 EX08303-07 EX08300-00 EX198 EX78000-00 EX08601-00 AP064208 EX08303-07 EX08300-00 EX08200-11 EX78000-01 EX08601-00 AP036480 EX08303-05 EX08300-00 EX78000-00 EX08601-00 AP048480 EX08303-05... -
Page 11: Options
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: 800-543-6163. Email: info@eemaxinc.com Web: www.Eemax.com Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705... - Page 12 Optional Class 1/ Division 2...
- Page 17 Optional Enclosure Heater 1) Attach heat tape and foam insulation to all lengths of inlet and outlet water piping that are exposed to freezing temperatures. We recommend a rating of -30 degrees F at 10 miles per hour wind. Connect the heat tape to an independent source of electrical power.
- Page 18 Optional GFCI The optional GFCI consist of (A) Control Module and (B) Current Transformer. This control module has a LCD display indicating real-time measurements. The GFCI module is pre-set from the factory to trip at 3.0A. Test and reset functions are carried out automatically every 24hrs.
- Page 19 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: 800-543-6163. Email: info@eemaxinc.com Web: www.Eemax.com Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705...
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