Haws 9326, 9327 User Manual

INSTALLATION INSTRUCTIONS

AND OWNER’S MANUAL

FOR

ELECTRIC ON-DEMAND TANKLESS WATER HEATERS:

SpecAdvantage with PhD Technology

SafeAdvantage with PhD Technology

208 and 480 VAC three phase 32 – 144 kW

600 VAC three phase 130 / 150 kW

BEFORE ATTEMPTING INSTALLATION OR SERVICE OF THIS
HEATER, DISCONNECT ELECTRICAL POWER AT THE SERVICE BREAKER
PANEL. FAILURE TO DO SO CAN RESULT IN SERIOUS INJURY, DEATH
AND/OR PROPERTY DAMAGE.

1

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.

• 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 continuous

duty cycle of 3 hours at 100% power output. Exceeding this rating could damage
the heater and void the warranty.

• Provide your heater with potable, uninterrupted supply of water at a constant

minimum pressure of 25 or 45 PSI (based on model) and maximum pressure of 150 PSI.

2

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TABLE OF CONTENTS

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

14

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 is contingent on proper installation according to these instructions. Please refer to the warranty card
packaged with this heater.

Installation of this water heater must conform to the latest requirements of the National Electrical Code and
all applicable state and local codes. Detailed information on state and local codes is available through your
local authorities. You must understand and comply with these requirements before beginning the
installation. Eemax recommends your heater be installed by a licensed plumber and electrician.

Per UL 499, this water heater is not required to be installed with a Temperature and Pressure relief valve

(T&P). However, local codes may vary. In case a T&P relief valve is required, it must be installed on the
outlet hot water line heater between the heater and the isolation valve.

3

1) MOUNTING THE HEATER TO THE WALL

Please follow the mounting instructions as appropriate to your installation. Eemax recommends the heater
be installed close to the point of use.

Make sure the brass fittings are at the bottom of the
heater. No other heater orientation is permitted.
Recommended clearances:
Leave a service clearance of at least 12” inches on all

sides of the heater.
SafeAdvantage: SafeAdvantage water heaters are
enclosed in a Nema 4 cabinet. For wall mount
installation, use appropriately rated fasteners to secure
the cabinet with the provided mounting tabs on the
outside of each corner to secure it to the wall. For floor
mount installation, enclosure legs are available for
purchase.
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 secure the heater in
place.

4

This heater must be installed in a location where it is not subject to freezing
temperatures, unless supplied with factory installed freeze protection

SafeAdvantage

Spec Advantage

Larger cabinet for all optional features

(GFCI, Freeze Protection, Electrical Disconnect,

Class 1 Div 2, Siren/ Beacon)

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.

6

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.

Connect the cold water line with the inlet connection
(RIGHT fitting)
Connect the outlet pipe with the outlet fitting (LEFT
fitting).

Do not reverse connections.

COLD

WATER

IN

HOT

WATER

OUT

COLD

WATER

IN

HOT

WATER

OUT

A PRV Vent is located fitting. The PRV Vent is not a code

compliant pressure relief valve. Check local codes to see if a

code compliant T&P Relief Valve 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

7

Eemax recommends your heater be installed or serviced by a licensed plumber
and electrician.

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

8

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.

2

) 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.

3

) 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.

9

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.

7)

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.

8)

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.

9)

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.

10

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

12)

FAULTS are communicated through the LCD display.

The display will switch from the SETPOINT screen to the
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.

ERROR CODES:

E0: Excessive water flow detected

Corrective action: Using the OUTLET BALL VALVE, slowly reduce water flow until
the desired temperature is achieved. The temperature is proportional to the flow through the
heater; the lower the flow, the higher the temperature and vice versa.

Keep the INLET BALL VALVE fully “OPEN”. NEVER RESTRICT THE WATER

FLOW USING THE INLET VALVE.

E1: Inlet temperature too hot to generate heat

FAULT CODES:

F0: Outlet thermistor out of range
F1: No change in water temperature detected
F2: Dry fire detected - Optical Sensor Tripped
F3: Excessive dry fire occurrences detected
F4: Inlet thermistor out of range

13)

The security of the heater settings is provided by
pressing and holding the LEFT and UP buttons for 3
seconds to lock the buttons. Once locked, the buttons
have no function. Press and hold the same LEFT and UP
buttons for 3 seconds to unlock the buttons

.

The security status can be checked at any time by

pressing any one button. If the system is locked, the

screen will display “BUTTONS LOCKED”.

[ + ] =

11

FAULT

CODE: F0

BUTTONS

LOCKED

SETPOINT

TEMP120F

6) REPAIR PARTS

BEFORE ATTEMPTING ANY REPAIRS TO THE HEATER, MAKE SURE THAT THE

ELECTRICAL BREAKER IS “OFF” AND CONFIRM THAT THERE IS NO VOLTAGE AT

THE HEATER.

* Heating element assembly consists of one heater core and wire element(s) complete.
** Flow meter kit consists of paddle wheel, dowel pin, O ring and 4 mounting screws.

Transformer

Control

Board

Fuse

Flow Meter Kit **

Hall Effect Board

(behind Flow Meter)

Triac/SSR (not shown)

Heating
Element
Assembly *

Optical

Sensor

Board

Emergency
Cut Off

Contactor

12

14) 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.

+[+ + ]

=

Service and repairs are to be performed by licensed
electricians or qualified servicemen.

ACTUAL

TEMP 75F

REPAIR PARTS (continued)

Control

Flow Meter

Hall Effect

Model

Transformer

Board Fuse Kit Board

AP032208

EX08303

-07

EX08300

-00 EX198

EX78000

-00

EX08601

-00

AP036208

EX08303

-07

EX08300

-00

EX08200

-11

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 N/A

EX78000

-00

EX08601

-00

AP039480

EX08303

-05

EX08300

-00 N/A

EX78000

-00

EX08601

-00

AP048480

EX08303

-05

EX08300

-00 N/A

EX78000

-00

EX08601

-00

AP054480

EX08303

-08

EX08300

-00

EX08100

-07

EX78000

-00

EX08601

-00

AP063480

EX08303

-08

EX08300

-00 EX198

EX78000

-01

EX08601

-00

AP072480

EX08303

-08

EX08300

-00 EX198

EX78000

-01

EX08601

-00

AP096480

EX08303

-08

EX08300

-00 EX198

EX78000

-01

EX08601

-00

AP108480

EX08303

-08

EX08300

-00 EX198

EX78000

-01

EX08601

-00

AP126480

EX08303

-08

EX08300

-00

EX08200

-11

EX78000

-01

EX08601

-00

AP144480

EX08303

-08

EX08300

-00

EX08200

-13

EX78000

-01

EX08601

-00

AP130600

EX08303

-06

EX08300

-00

EX08200

-13

EX78000

-01

EX08601

-00

AP150600

EX08303

-06

EX08300

-00

EX08200

-13

EX78000

-01

EX08601

-00

Heating Optical

Element Sensor

Emergency

Model

Triac/SSR*

Assembly Board

Cut Off **

Contactor

AP032208

EX78002

-00

EX77000-8.12

EX78001-00

EX278A-KIT

EX08306

-02

AP036208

EX78002

-00

EX77000-7.20

EX78001-00

EX278A-KIT

EX08306

-00

AP041208

EX78002

-00

EX77000-6.33

EX78001-00

EX278A-KIT

EX08306

-00

AP054208

EX78002

-00

EX77000-4.81

EX78001-00

EX278A-KIT

EX08309

-00

AP064208

EX78002

-00

EX77000-4.06

EX78001-00

EX278A-KIT

EX08309

-00

AP036480

EX78002

-00

EX77000-19.2

EX78001-00

EX278A-KIT

EX08306

-02

AP039480

EX78002

-00

EX77000-17.7

EX78001-00

EX278A-KIT

EX08306

-00

AP048480

EX78002

-00

EX77000-14.4

EX78001-00

EX278A-KIT

EX08306

-00

AP054480

EX78002

-00

EX77000-12.8

EX78001-00

EX278A-KIT

EX08306

-02

AP063480

EX78002

-00

EX77000-18.2

EX78001-00

EX278A-KIT

EX08306

-02

AP072480

EX78002

-00

EX77000-19.2

EX78001-00

EX278A-KIT

EX08306

-02

AP096480

EX78002

-00

EX77000-14.4

EX78001-00

EX278A-KIT

EX08309

-00

AP108480

EX78002

-00

EX77000-12.8

EX78001-00

EX278A-KIT

EX08309

-00

AP126480

EX78002

-00

EX77000-10.97

EX78001-00

EX278A-KIT

EX08309

-00

AP144480

EX08200

-12 EX77000-9.6

EX78001-00

EX278A-KIT

EX08309

-00

AP130600

EX08200

-12

EX77000-16.6

EX78001-00

EX278A-KIT

EX08309

-00

AP150600

EX08200

-12

EX77000-14.4

EX78001-00

EX278A-KIT

EX08309

-00

* For “S” models use SSR EX08200-12

** Use EX278-A for all models EXCEPT:

- ‘S’ and ‘DB’ options use EX278D-KIT

-‘EE’ and ‘EFD’ options use EX278E-KIT

13

Optional Class 1 Division 2

14

7) OPTIONS

151617

18

NOTE: LPS MODEL SHOWN

19

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.

FAILURE TO ATTACH HEAT

TAPE AND INSULATION TO EXPOSED INLET

AND OUTLET PIPES WILL VOID THE
WARRANTY.

2) Set the thermostat on the enclosure heater,
located at the upper left corner in the
enclosure, to 40 - 70 degrees F.

Note: Heater Fan continuously operates to
recirculate air in the enclosure. The heater coil
will activate based on thermostat set point.

20

Note: Power must be applied to the water heater for the
freeze protection system to operate. If power is not applied
ensure the system is completely drained. Neglecting to do
so will damage the heater and void the warranty.

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. To manual test the GFCI press the test
button for a min. of 1.5 secs. To reset a tripped GFCI
cycle the power of the unit. If equipped with a

disconnect handle turn the handle to the “OFF”
position then back to “ON”.

A

B

Test

21

22

Optional NON-FUSIBLE Disconnect Switch

DISCONNECT

SWITCH MODEL

60 A 100 A 200 A

OPERATING VOLTAGE 600 V 600 V 600 V

Max horsepower rating:

120 Vac 1-Phase 3 -- --

220/240Vac 1-Phase 10 10 10

220/240Vac 3-Phase 20 30 75

440/480Vac 3-Phase 40 75 150

600 Vac 3-Phase 50 100 200

Short circuit rating with
fuses

100 200 200

Branch circuit fuse type J J J

Max fuse rating (A) 60 100 200

Nema Type: 4, 4X Color: Red/Yellow

DISCONNECT HANDLE

23

Optional FUSIBLE Disconnect Switch

DISCONNECT SWITCH MODEL 200 AMP 100 AMP

RATING (A) 200 A 100A

OPERATING VOLTAGE 600 V 600 V

Max horsepower rating/ Max motor FLA current
Three phase :

208 V 50/150 25/78.5

240 V 60/154 30/80

480 V 125/156 60/77

600 V 150/144 75/77

DC 125 V (2 pole in series) 15/112 7.5/58

DC 250 V (3 pole in series) 40/140 20/38

Short circuit rating with fuses 200 200

Branch circuit fuse type J J

Max fuse rating (A) 200 100

DISCONNECT HANDLE

Nema Type: 4, 4X Color: Red/Yellow

24

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: [e-mail] Web: www.Eemax.com

Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705

EX07200-15 Rev 5.2