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