EemaX AP032208 Quick start guide

INSTALLATION INSTRUCTIONS

AND OWNER’S MANUAL

ELECTRIC INSTANTANEOUS WATER HEATERS

WITH PhD Technology

208 and 480 VAC three phase 32 –144 kW

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.

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 unless supplied with factory installed freeze protection. 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.

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. User instructions for the

unit controls start on page 9.

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SAVE THESE INSTRUCTIONS

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS

A green terminal (or a wire connector marked “G”, “GR, “Ground”, or “GROUNDING”) is provided within

the control box. To reduce the risk of electric shock, connect this terminal or connector to the grounding

terminal of the electric service or supply panel with a continuous copper wire in accordance with your

local electrical code.

Do not install in a bath enclosure or shower stall or connect to a salt-regenerated

water softener or a water supply of salt water.

Use copper conductors only.

1) MOUNTING THE HEATER TO THE WALL …………………………………………………………

PAGE 4

2) PLUMBING HOOK

UP ……………………………………………………………………………………

PAGE 5

3) ELECTRICAL HOOK

UP …………………………………………………………………………………..

PAGE 7

4) COMMISSIONING THE HEATER ……………………………………………………………………..

PAGE 8

5) CONTROL FEATURES …………………………………………………………………………………….

PAGE 9

6) REPAIR

PARTS …………………………………………………………………………………………….

7) OPTIONS …...……………………………………………………………………………………………...

PAGE 12

PAGE

Use Water Hammer Arrestors in applications with excess pipe lengths or fast acting

valves, neglecting to do so will damage the heater and void the warranty.

Use appropriate water conditioning to prevent water hardness in excess of 10 grains per

gallon. Also ensure that the pH level of the water is between 6.5 –7.5. Neglecting to do

so will damage the heater and void the warranty.

In accordance with NEC guideline, this water heater is designed for a contentious duty

cycle of 3 hours at 75% power output. Exceeding this rating could damage the heater

and void the warranty.

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. Time-to-temperature performance will improve the closer the heater is installed to the

point of use.

Make sure the brass fittings are at the bottom of the

heater and pointing “DOWN”. No other heater

orientation is permitted. Leave a service clearance of at

least 12” inches on the left and right sides of the heater.

SafeAdvantage: Install the heater with cabinet using the

supplied mounting feet following the instructions

provided with the cabinet. Be sure to use appropriately

rated fasteners to hold the cabinet/heater in place.

SpecAdvantage: Remove the cover by removing the

cover screws as indicated by the arrows (right) and

fasten the heater to the wall using the mounting holes

located at each corner of the back plate. Be sure to use

appropriately rated fasteners to hold the heater in place.

This heater must be installed in a location where

it is not subject to freezing temperatures.**

** Does not apply to SafeAdvantage with

Freeze Protection option.

SafeAdvantage

Spec Advantage For all optional features

(GFCI, Freeze Protection, Electrical

Disconnect, Class 1/ Div 2, Siren/ Beacon)

Mounting Dimensions

2) PLUMBING HOOK-UP

NEVER USE PIPE DOPE WHEN MAKING PLUMBING

CONNECTIONS TO THIS HEATER. FOLLOW STANDARD

INDUSTRY PRACTICE WITH CAREFUL APPLICATION OF

TEFLON TAPE. DO NOT ALLOW TEFLON TAPE TO GET

INTO THE HEATER.

NEVER SOLDER ANY PIPE CONNECTIONS WHILE

ATTACHED TO THIS HEATER - DAMAGE TO THE HEATER

WILL RESULT. DOING THIS WILL VOID THE WARRANTY.

2) PLUMBING HOOK-UP(continued)

The heater is equipped with NPT brass fittings. Make

sure ONLY NPT fittings are used for connection to this

heater.

Make the cold water inlet connection to the lower RIGHT

fitting and the hot water outlet connection to the lower

LEFT fitting. Reversed connections will cause erratic

operation and premature heater failure. COLD

WATER

HOT

WATER

OUT

COLD

WATER

HOT

WATER

OUT

PRV Vent is not a code compliant pressure

relief valve. Check local codes to see if a

code compliant PRV is required in your

installation.

3) ELECTRICAL HOOK-UP

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.

This heater must have its own independent circuit using insulated, UL listed wire conductors of the

appropriate size suitable for up to 90° C and protected by the correctly rated circuit breaker.

See chart on next page.

Before starting any electrical work VERIFY there is no

power at the heater before proceeding !

The power conductors are to be secured

to the L1, L2 and L3 connectors on the

terminal block (Fig. 1) or contactor (Fig. 2).

The ground is to be secured to the GND

connector to the right of the terminal

block or below contactor (Fig 3).

Replace the cover. (SpecAdvantage only).

FAILURE TO GROUND THE SYSTEM MAY RESULT IN SERIOUS INJURY,

DEATH AND/OR PROPERTY DAMAGE.

L1 L2 L3 GND

Installation and service is to be performed by a licensed

electrician or qualified serviceman.

Fig. 1

Fig. 3

Fig. 2

GND

L3 L2 L1

4) COMMISSIONING THE HEATER

BEFORE SWITCHING THE ELECTRICAL BREAKER “ON”, MAKE SURE

THE INLET AND OUTLET BALL VALVES ARE FULLY OPEN AND WATER

IS FLOWING THROUGH ALL POINTS OF USE FOR A MINUTE OR TWO

UNTIL THE FLOW IS CONTINUOUS AND FREE FROM AIR POCKETS.

DO NOT SWITCH THE BREAKER “ON” IF THERE IS ANY POSSIBILITY

THE WATER IN THE HEATER IS FROZEN.

After verifying the heater has been

purged of air (see above) turn the circuit

breaker/disconnect “ON” and observe

the start-up sequence on the display.

The LCD screen will display the SETPOINT

TEMPERATURE in degrees F.

Below the display are 4 push buttons that

are used to control the function of the

heater. Press the UP or DOWN buttons to

establish your desired temperature. Refer

to the CONTROL FEATURES section of this

manual for additional information.

The heater is fully installed and ready for use.

ELECTRICAL SPECIFICATIONS

VOLTS AMPS RECOMMENDED

MODEL 3-PHASE DELTA Kw PER PHASE WIRE SIZE (CU) 90° C

AP032208 208 32 89 1 AWG

AP036208 208 36 100 1 AWG

AP041208 208 41 114 1 AWG

AP054208 208 54 150 2/0

AP064208 208 64 178 3/0

AP036480 480 36 44 8 AWG

AP039480 480 39 47 8 AWG

AP048480 480 48 58 6 AWG

AP054480 480 54 65 4 AWG

AP063480 480 63 76 3 AWG

AP072480 480 72 86 3 AWG

AP096480 480 96 116 1 AWG

AP108480 480 108 130 1/0

AP126480 480 126 152 2/0

AP144480 480 144 173 3/0

AP130600 600 130 130 1 AWG

AP150600 600 150 144 1/0

SETPOINT

TEMP120F

TEMPERATURE RISE AT SPECIFIED FLOW RATE, DEGREES F:

TURN-ON 3.0 4.0 6.0 8.0 12.0 20.0 25.0 30.0

MODEL GPM GPM GPM GPM GPM GPM GPM GPM GPM

AP032208 1.0 73 55 36 27 18 10 8 7

AP036208 1.0 82 61 41 29 20 12 9 8

AP041208 1.0 93 70 47 35 23 13 11 9

AP054208 1.5 123 92 61 46 31 18 14 12

AP064208 2.5 146 109 73 55 36 22 17 15

AP036480 1.0 82 61 41 31 20 12 9 8

AP039480 1.0 89 67 44 33 22 13 11 7

AP048480 1.0 109 82 55 41 27 16 13 11

AP054480 1.5 123 92 61 46 31 18 14 12

AP063480 2.5 143 108 72 53 36 22 17 14

AP072480 2.5 147 123 82 61 41 25 20 16

AP096480 2.5 * * 109 82 54 33 26 22

AP108480 2.5 * * 99 92 61 37 30 25

AP126480 2.5 * * 143 107 72 43 34 29

AP144480 2.5 * * * 122 82 49 40 34

AP130600 2.5 * * * 111 73 44 35 30

AP150600 2.5 * * * 128 85 52 40 35

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.

PUSH BUTTON FLOW CHART

1) The SETPOINT

TEMP or ACTUAL TEMP screen can be

selected for display

as the home screen. Either of these

screens will remain on the display when the backlight timer

expires.

) There is a 5 minute time delay built into the control.

Regardless of which screen is being displayed, after 5

minutes of inactivity, the display will revert to the SETPOINT

TEMP

screen.

) The 4 push buttons are used to control the operation of

the heater. The LEFT and RIGHT buttons shift the display

from one screen to another. The DOWN and UP buttons

may change the values within selected screens.

4) As an example, when the screen displays SETPOINT

TEMP, the desired hot water temperature will increase 1

degree for each press of the UP button and decrease 1

degree for each press of the DOWN button. Note that

minimum and maximum

setpoint temperatures are

established at the factory.

OR ACTUAL

TEMP 75F

SETPOINT

TEMP120F

SETPOINT

TEMP120F

SETPOINT

TEMP120F

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. This shows the actual temperature of the water

leaving the heater.

From the ACTUAL TEMP

screen, one press of the RIGHT

button will shift the display to the LOAD

PCT screen. This

shows the electrical power consumption as a percentage

of full power.

From the LOAD PCT screen, one press of the RIGHT

button will shift the display to the FLOWRATE screen. This

shows the rate of flow of water through the heater.

From the FLOWRATE screen, one press of the RIGHT

button will shift the display to the UNITS screen. This

shows the units of measure in either the ENGLISH or

METRIC systems. ENGLISH units are degrees Fahrenheit

and gallons per minute. METRIC units are degrees Celsius

and liters per second. Use the UP and Down buttons to

select the desired units of measure.

10) From the UNITS screen, one press of the RIGHT button

will shift the display to the SOFTWARE REVISION screen.

This shows the revision level of the software in the

control.

11)

From the SOFTWARE REVISION screen, one press of

the RIGHT button will shift the display to the ERRORS

screen. This shows the error history of the heater.

“0 ERRORS” means that no errors have occurred

If the heater has an error history of 4 errors; this history

will be displayed on the screen as shown. “CODE 1:E0”

refers to the first error and indicates it to be an E0 error.

One press of the UP button will show the second error as

“CODE 2:E0” and having the same E0 error.

Continued pressing of the UP or Down buttons will scroll

through each of the errors in the history (in this case a

total of 4). ERRORS indicate an undesirable condition but

will not shut down the operation of the heater.

SETPOINT

TEMP120F

INLET

TEMP 74F

SETPOINT

TEMP120F

ACTUAL

TEMP 75F

ACTUAL

TEMP 75F

LOAD PCT

0% PWR

LOAD PCT

0% PWR

FLOWRATE

??.? GPM

FLOWRATE

??.? GPM

UNITS

ENGLISH

UNITS

ENGLISH

SOFTWARE

20131218

SOFTWARE

20131218

1 ERROR

CODE1:F0

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