Dux Sunpro DN15DS, Sunpro DL15DS, Sunpro DL15CS, Sunpro DN15CS Installation And Owner's Manual

Owner’s Manual

Pre Boosted Gas Solar Water Heater MP15

Models: DN15DS

DL15DS
DN15CS
DL15CS

Installation Details

Owner’s Information

Warranty

For advice, repairs and service, call:

1300 365 115 (Australia)
0800 729 389 (New Zealand)

Carefully remove all packaging and
transit protection from the heater before
installation. Dispose of the packaging
responsibly using re-cycling facilities
where they exist.

Specications and materials may change without notice
Effective for Sunpro gas boosted solar water heaters manufactured and sold after 1 April 2011.

H4096 4096 Rev. F

Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Contents

Welcome To Dux Hot Water 1

Installation of the Tank 2

Plumbing Connections 4

Specications 7

System Components 8

Installation of Collectors 10

Plumbing Connections to
Collectors 13

Gas Connection 15

Electrical Connections 16

Hotlogic Connections 17

Owner’s Information 18

System Maintenance 22

Troubleshooting 23

Warranty 25

Other Information 28

© Dux Manufacturing Limited 2012. All rights reserved.

H4096 4096 Rev. F

Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Welcome To Dux Hot Water

Your decision to purchase a Dux Hot
Water system will reward you for many
years to come.

Since 1915, the Dux range has seen
continuous research and development,
resulting in many breakthroughs in the
efciency, reliability and longevity of hot
water systems.

Dux water heaters are manufactured
in Australia in a state-of-the-art facility,
using a Quality Endorsed Company
production system.

This is your assurance that you have
purchased the highest quality water
heater available, one that will provide
continuous hot water for all your needs
– safely, economically, and for many
years to come.

To be upfront about it, we want Dux to
be your brand of choice. So you can
depend on us to provide more than just
a hot water system.

Go with Dux and you’ll have a
dependable, economical, efcient hot
water system designed to perform well,
year after year. And that’s a promise.

You can rely on Dux products and
choose them with condence. We’ll
make sure you have the information, the
quality and the innovation you’re looking
for, including the latest energy-saving
alternatives. If you should ever have a
problem – and we’ll bet you won’t –
you’ll nd that we’re easy to get hold of,
friendly to talk to and quick to act. Our
service is all about providing anything
you need as soon as you need it.

H4096 4096 Rev. F

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Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

AS5601 – Gas Installation Code

Installation of the Tank

Installer’s Guide

Full and detailed installation instructions
are in the Installer’s Guide, included
inside the water heater’s carton.

Outdoor Tank Installation

The water heater must be installed
outdoors, with the minimum clearances
as shown in the gure below.

We recommend a plinth be installed
under the water heater where the
water heater is subjected to wet
conditions. Please refer to AS/NZS

3500.4, clause 5.5.3.

Minimum clearance around the windows
and doors must be maintained – refer to
AS 5601.

Location

The water heater should be located as
close as possible to the most frequently
used hot water outlet. Ensure that the
data label is clearly visible and that there
is adequate access for servicing the unit.

Note: All models are equipped with a
sacricial anode, accessible through the
top cover. Allow 50% of the height of
the water heater for clearance above to
replace the anode.

A properly drained overow tray must
be used where property damage could
occur from water spillage. (See AS/
NZS3500.4 for further details). Warranty
does not cover consequential damage
due to heater leakage.

Safety

This appliance is not intended for use
by persons (including children) with
reduced physical, sensory or mental
capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning
use of the appliance by a person
responsible for their safety.

Children and animals should be
supervised to ensure that they do not
interfere with the appliance.

B

A

C

A = 500mm B=300mm C=50mm min

For further details, refer to

2

H4096 4096 Rev. F

Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Installation of the Tank

Installation of the Tank

Frost Protection

The areas in gray in the map below may
be vulnerable to frost. Solar hot water
heaters installed in these areas require
an approved antifrost protection device
to maximise system performance.

Note: The Gas Boosted Solar water
heater already has an in-built frost
protection device, so no further antifrost
protection is required.

Model Numbers

Below is a list of model numbers and
their descriptions:

Model No. Description

DN15DS 315 Litre, 45 MJ/h, Natural Gas

DL15DS 315 Litre, 45 MJ/h, LPG

DN15CS 250 Litre, 45 MJ/h, Natural Gas

DL15CS 250 Litre, 45 MJ/h, LPG

H4096 4096 Rev. F

Auckland

Wellington

Christchurch

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Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Plumbing Connections

Installation Requirements

This water heater must be installed
by a licensed tradesperson, and in
accordance with:

• AS/NZS3500.4 “National Plumbing
and Drainage Code Hot Water
Supply Systems – Acceptable
Solutions”.

• AS5601/AG601 “Gas Installations”

• Local authority regulations.

• Outside Australia and New Zealand,
please refer to local plumbing and
building codes and regulations.

• Notice to Victorian customers
from the Victorian Plumbing
Industry Commission – this water
heater must be installed by a
licensed person as required by the
Victorian Building Act (1993). Only
a licensed person will give you a
compliance certicate, showing
that the work complies with all
the relevant Standards and only a
licensed person will have insurance
protecting their workmanship for 6
years.

Water Supply Pressure

This water heater is designed for direct
connection to water supply pressures of
no greater than:

800kPa

Where the mains pressure can exceed
or uctuate beyond the pressure
shown above, a pressure limiting
device (complying with AS1357) must
be tted in the cold water inlet supply.
This device must be installed after
the isolating valve and set below the
pressure shown above. Note during
periods of lower demand water pressure
may increase.

Pool Heating

This water heater must not be used for
pool heating.

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H4096 4096 Rev. F

Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Plumbing Connections

Pressure & Temperature Relief
Valve

The Pressure & Temperature Relief (PTR)
Valve is supplied loose with the water
heater. The valve rating is:

1000kPa

The specications and part numbers of
the PTR Valve provided are:

Part No: H0443

Description: PT VALVE ½" – HT55
1000kPa

The PTR valve must be installed directly
into the top socket marked “RELIEF
VALVE”. The drain line from this valve
must run in a continuously downward
direction in a frost-free ambient position
with the discharge end left open to
atmosphere permanently.

The PTR Valve is not intended to enable
connection of the water heater to
supplementary energy sources such as
solar panels or slow combustion stoves
(refer AS/NZS 3500.4 for guidance on
these types of installations).

Warning: We recommend that you
open the PTR valve at least once every
six (6) months. Failure to do this may
result in problems with the water heater.

The PTR Valve must not be tampered
with or removed. The water heater must
not be operated unless this valve is
tted and in working order.

The PTR Valve should be checked for
adequate performance or replaced at
intervals not exceeding 5 years, or less
in areas where local regulations apply.

Important: The PTR Valve and its
drain outlet pipe must not be sealed or
blocked. It is normal for the PTR valve
to leak a small amount of water during
heating cycles.

Open the PTR Valve for approximately
10 seconds by lifting the lever on the
valve to ensure water is relieved to waste
through the relief drain pipe. Lower lever
gently and check that it closes correctly.

H4096 4096 Rev. F

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Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Connection

Valve

Cold Water
Inlet

Expansion

Isolating Valve

Plumbing Connections

Cold Water Connection

It is mandatory to t the following items
between the supply main and the
RP¾"/20mm socket in the water heater.

• an isolating valve

• a non return valve

• a line strainer

• a union

All ttings must be approved by the
relevant Authority and in accordance to
the plumbing code.

(Spindle Vertical)

Line
Strainer

Note: a combined isolating valve/non­return valve/line strainer may be used.
Expansion valve only required where local
regulations demand.

Valve

Union

Non-return

Note for S.A. and W.A.: It is a state
requirement that a pressure relief valve
be tted on the cold water supply line
between the non return valve and the
water heater.

Hot Water Connection

The hot water line should be connected
to the “OUTLET” socket on the tank.

Insulation of Pipes

All hot water pipes must be insulated
with UV stabilized insulation suitable
for solar working temperatures, e.g.
Armaex Insulation.

Building Flow & Return

Never install a building circulated ow
and return line to the inlet connection
of a Dux (Electric solar or Gas solar
hot water heater) or (Heat Pump water
heater)

The solar water heater is not designed
to be installed on a circulated ow
and return line due to loss of thermal
efciency. Extensive pipe work will
cause efciency losses gained from
solar energy and will increase energy
consumption.

If a ow and return line is required, we
recommend that you install a backup
storage or continuous ow water heater
on the ow and return line and a time
control the building circulation loop to
help reduce energy usage.

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H4096 4096 Rev. F

Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Plumbing Connections

Temperature Protection

All solar water heaters have the ability
to produce hot water very quickly.
To reduce the risk of scald injury, it is
mandatory under the requirements of
Australian Standard AS/NZS3500.4 that
a suitably approved temperature control
device, such as a tempering valve, be
tted to the hot water supply to outlets
used primarily for personal hygiene.

Note: This water heater is supplied
with a tempering valve. Install the
valve according to the manufacturer’s
recommendations. Any adustments to
the valve should be made according to
the manufacturer’s recommendations.

The tempering valve should be checked
at regular intervals to ensure its
operation and settings remain correct.

H4096 4096 Rev. F

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Owner’s Manual – Pre Boosted Gas Solar Water Heater MP15

Front RHSLHS

T ank Alignment

Specifications

Detail G

Wall

Water
Heater

Hot
Water
Outlet

Cold
Water
Inlet

Model

Number

A B

Approximate

Weight Empty

(kg)

See
Detail G

D

E

C

Dimensions

(mm)

A B C D E F

Solar drain.
Plumb to
waste.

To solar
collector

Gas inlet

Return from
solar
collectors

F

See
Detail G

Storage

Capacity

(L)

DN15CS, DL15CS 98 1444 1231 215 750 617 648 259

DN15DS, DL15DS 112 1754 1541 215 750 617 1013 324

Note: Minor changes to specifications and materials may occur without notice. While these will not affect the
safety, reliability or performance of your Dux unit, they could impact on the installation procedures explained in
this manual – check with Dux on 1300 365 115 if you are uncertain about any aspect of installing this product.

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H4096 4096 Rev. F