SUNPRO 2F136S, 3F136S, 4F136S Owner's Manual

Owner’s Manual

Electric Boosted Solar Water Heater

Models: 2F136S
3F136S
4F136S

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 Dux electric boosted solar water heaters manufactured and sold after 1 April 2009.

H3100 10346 Rev. G

Owner’s Manual – Electric Boosted Solar

Contents

Welcome To Dux Hot Water 1

Installation of the Tank 2

Plumbing Connections 4

Specications 7

Installation of Collectors 10

Plumbing Connections to
Collectors 11

Electrical Connections 15

Hotlogic Connections 16

Owner’s Information 17

Troubleshooting 21

Warranty 23

Warranty Card 26

© Dux Manufacturing Limited 2011. All rights reserved.

H3100 10346 Rev. G

Owner’s Manual – Electric Boosted Solar

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.

H3100 10346 Rev. G

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Owner’s Manual – Electric Boosted Solar

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.

Location

The water heater should be located as
close as possible to the most frequently
used hot water outlet. Ensure that the
data plate is clearly visible and provide
adequate access for service to the
thermostat, relief valve and anode.

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.

We recommend a plinth be installed
under the water heater where the
water heater is subjected to wet
conditions

A properly drained overow tray must
be used where property damage could
occur from water spillage. (See AS/
NZS3500.4 for further details.)

Note: 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.

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H3100 10346 Rev. G

Owner’s Manual – Electric Boosted Solar

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.

H3100 10346 Rev. G

Auckland

Wellington

Christchurch

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Owner’s Manual – Electric Boosted Solar

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”.

• Clause G12 of the New Zealand
building code.

• 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:

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.

Pressure & Temperature Relief
Valve

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

All Models – 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).

All Models – 800kPa

Where the mains pressure can exceed

4

Open the PTR Valve for approximately
10 seconds by lifting the lever on the
valve to ensure water is relieved to waste

H3100 10346 Rev. G

Owner’s Manual – Electric Boosted Solar

Expansion

Isolating Valve

Plumbing Connections

through the relief drain pipe. Lower lever
gently and check that it closes correctly.

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.

Danger

Failure to operate the relief valve easing
lever at least once every six (6) months
may result in a problem with the water
heater and in some cases the tank may
explode.

Warning: A separate drain line must be
run for this relief valve. It is not permitted
to couple drain lines from relief valves
into a single common drain line.

Cold Water Connection

An approved isolating valve, non
return valve, line strainer (optional but
recommended), and union must be
tted between the supply main and the
RP¾"/20mm T tting connected to the
socket in the water heater.

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

(Spindle Vertical)

Cold Water
Inlet

Line
Strainer

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

Valve

Union
Connection

Non-return
Valve

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

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Owner’s Manual – Electric Boosted Solar

Plumbing Connections

Hot Water Connection

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

All hot water lines must be insulated
with minimum 13mm UV stabilized
insulation suitable for solar working
temperatures, e.g. Armaex Insulation.
Please check local regulations regarding
the use of hot water supply pipework
other than pipes made of copper.

Note: Once all connections have been
properly made, ll tank by opening
the cold water inlet and bleed all lines
according to appropriate plumbing code.

Safety Information

For safe performance this water heater
is tted with:

• an over-temperature energy cut-out
thermostat

• a combination Pressure &
Temperature Relief Valve.

These devices must not be tampered
with or removed. The water heater must
not be operated unless both of these
devices are tted and in working order.

Insulation of Pipes

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

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/NZS3500.4.2
that a suitably approved temperature
control device be tted to the hot water
supply to outlets used primarily for
personal hygiene. This valve should be
checked at regular intervals to ensure its
operation and settings remain correct.

Note: All Dux solar water heaters are
supplied with tempering valves. Any
adjustment 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.

The element cover should be removed
only by a qualied electrician. The
electrical power supply must be
isolated at the main electrical supply
switchboard before the water heater
electrical cover is removed.

6

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Owner’s Manual – Electric Boosted Solar

6

Specifications

7

3

5

System Components

Item

Description

Number

1 Solar Electric Tank Assy

2 Solar Collector

3 Solar Collector flow connection

4 Solar Collector Sensor Lead

5 Solar Collector Flow

6 Air Bleed Valve

7 Anti-Frost Valve (if fitted)

8 Non Return Valve

2

4

1

D

E

8

Dimensions

(mm)

250L 315L 400L

B

C

A

Tank Height (A) 1444 1754 1703

Tank Diameter (B) 617 617 705

Tank Width (C) 718 718 806

Outlet (D) 1231 1541 1466

Inlet (E) 215 215 240

Specifications 250L 315L 400L

Storage Capacity (L) 259 324 416

Hot Water Delivery (L) 250 315 400

Net Weight Empty (kg) 90 105 120

Relief Valve Pressure (kPa) 1000 1000 1000

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Owner’s Manual – Electric Boosted Solar

Installation of Collectors

Installer’s Guide

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

Safety

Do not commence an installation until
you have satised yourself that all safety
issues associated with working on and
lifting components onto a roof have
been addressed.

Local Authority Regulations

All work associated with the installation
must comply with local authority
regulations, including AS/NZS 3500.4.2.

Where these installation instructions and
local regulations are in conict, local
regulations must prevail.

Location of Collectors

There are several factors to consider in
selecting the collector location site:

• For best performance, the collectors
need to face true north. Due to the
high solar energy levels experienced
in Australia, installations on angles
of up to 45° away from true
north should not have a major
effect on the annual solar output.
Consequently, installations up

to 45° away from true north
are acceptable. See Collector

Orientation Compass on page 9.

• If the collectors are installed with an
east facing bias, the best solar input
is achieved in the morning and if
there is a west facing bias, the best
solar input is in the afternoon.

• The collectors should be installed
with a minimum inclination of 10°

and a maximum inclination of
45°. See Collector Inclination Guide

on page 9.

• Careful site inspection is required to
ensure the selected location is not
subjected to shading from adjacent
trees or buildings at any time of the
day, but particularly between 9am

and 3pm, the highest solar input
times.

• Remember that shadows are longer
in winter than in summer, so a
site that is free of shadows from
adjacent objects in summer may
have some shadows in winter.

• To optimise efciency, the collectors
should be as close as possible to
the storage tank.

• For best performance, the collectors
should be located no more than
20m from the storage tank.

• Ensure that the roof structure is
suitable to support the weight of
the collectors. The collectors weigh
approximately 40kg each when full.

8

H3100 10346 Rev. G