Radiant Airoheat D2FHG4HW0C Montageanleitung

Heat Pump Water Heater

Specications and materials may change without notice.

Effective for Airoheat® water heaters manufactured and sold after 1st January 2012.

Installation and Owner’s Manual

Model: D2FHG4HW0C

H4120 025941 Rev. B

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.

Installation Details

Owner’s Information

Warranty

This appliance must be installed by a licensed

tradesperson and in accordance with:

• Manufacturer’s instructions

• AS/NZS 3500.4 “National Plumbing &

Drainage Code Hot Water Supply Systems

– Acceptable Solutions”

• Adherence to local authority and OH&S

regulations

• Victorian PIC Requirements



Read This Document First

On completion, sign and leave with owner

Installation and Owner’s Manual – Airoheat Heat Pump

H4120 025941 Rev. B

Welcome To Dux Hot Water 1

Rough-In Diagram 2

Installation Instructions 3

Installation Declaration 12

Owner’s Manual 13

Troubleshooting 18

System Maintenance 20

Safety Information 21

Warranty 22

Other Information 25

Contents

Installation and Owner’s Manual – Airoheat Heat Pump

H4120 025941 Rev. B

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.

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.

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.

Installation and Owner’s Manual – Airoheat Heat Pump

2H4120 025941 Rev. B

Rough-In Diagram

100

632

1711

1211

508

195

Hot

Cold

Tempering

Valve

700

150

Allow 700 mm clearance

above and 150mm

clearance to either side

of the unit

Allow 50% of the height of the

water heater for clearance

above to replace the anodes

Net weight = 107kg

Installation and Owner’s Manual – Airoheat Heat Pump

H4120 025941 Rev. B

Regulatory Requirements

This water heater must be installed

by a licensed tradesperson, and in

accordance with:

• AS/NZS3500.4.2 “National

Plumbing and Drainage Code Hot

Water Supply Systems – Acceptable

Solutions”.

• AS/NZS3000.

• 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.

Note: This water heater and

heat pump components are

not suitable for pool heating.

Specications

The net weight of the heat pump is

107kg.

Dimensions are shown in the rough-in

diagram in this manual.

Installation Instructions

Installation and Owner’s Manual – Airoheat Heat Pump

4H4120 025941 Rev. B

Transport and Handling

Critical: When moving the unit,

it must be close to vertical at

all times.

When using a trolley to move

the unit, ensure it is not

tilted more than 45° from the

vertical.

Non-compliance will void

warranty and severely affect

product performance and

operation.



• Arrive at site and conduct a safety

audit.

• Safety audits can also be known as

Work Method Statements (WMS) or

Job Site Analysis (JSA).

• Park your vehicle as close as

allowable to your installation.

• Unload all materials in a safe manner.

• Position all materials in a convenient

position near the work area.

• The existing tank (if applicable)

should be drained and removed in a

responsible manner.

Never tilt unit more than

45˚ from vertical

Installation Instructions

Note: Do not commence

a job where the risks

cannot be controlled.

Note: Do not drain on to

grass or garden beds.

Installation and Owner’s Manual – Airoheat Heat Pump

H4120 025941 Rev. B





• The water heater must be installed

outdoors, close to the most

frequently used hot water outlet.

• Optimum installation location is on

the warmest side of house.

• The location must consider noise

impact on living areas. Avoid

positioning near bedrooms or

neighbours’ bedrooms. Although the

running noise level is very low (51

dB(A)) it can be expected that the

heat pump will run during the night.

• Adequate access must be available

to the relief valve and anodes.

• Safely position the new unit on a

level surface in accordance with all

plumbing and building regulations.

• A properly drained overow tray

must be used where property

damage could occur from water

spillage. (See AS/NZS3500.4.2 for

further details.)

Note: The warranty does not

cover consequential damage

due to leakage of the water

heater.

Installation Instructions

Heat Pump

Install a plinth under the

water heater where the

water heater is subjected

to wet conditions

Installation and Owner’s Manual – Airoheat Heat Pump

6H4120 025941 Rev. B

• Allow 200m3 of free space

surrounding the unit. This provides

clear ambient airow assisting the

product’s performance.

• The area must also be clear of debris

such as leaves and tree branches.

• Allow 700 mm clearance above and

150mm clearance to either side of

the unit as shown in the Rough-In

Diagram on page 2.

• Ensure there are no obstructions

placed on top of the unit.

• Total clearance required from ground

to install unit is approximately

2410mm.





• Refer to the Rough-In Diagram on

page 2 for detailed information on

position of plumbing.

• An approved isolating valve, non-

return valve, line strainer (optional

but recommended), and union must

be tted between the supply main

and the RP¾/20 socket in the water

heater.

• All ttings must be approved by the

relevant installation Authority.

Installation Instructions

Drain

Union

Connection

Non-return

Valve

Line

Strainer

Cold Water

Inlet

Isolating Valve

(Spindle Vertical)

Cold water expansion

control valve

Note: For S.A. and W.A., it

is a state requirement that

a cold water expansion

control valve be tted on

the cold water supply line

between the non-return

valve and the water heater.

Installation and Owner’s Manual – Airoheat Heat Pump

H4120 025941 Rev. B

• 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 800kPa,

a pressure limiting device (complying

with AS1357) must be tted.



• Connect the supplied PTR valve

into the top socket marked “RELIEF

VALVE” and discharge according to

plumbing regulations.

• PTR Valves for the unit are rated at

1000kpa.

• The drain line from this valve must

run in a continuously downward

direction with the discharge end left

permanently open to atmosphere.

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.

• 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 3500.4.2 for guidance on these

types of installations)

Installation Instructions

Installation and Owner’s Manual – Airoheat Heat Pump

8H4120 025941 Rev. B



• Connect the cold water pipe to the

storage tank, according to local

regulations and the Plumbing Code.

• The hot water line should be

connected to the hot water outlet.



• A tempering valve is mandatory.

• Ensure it is commissioned correctly.

Incorrect commissioning can lead to

a lack of hot water.

• We recommend using an orange

top Reliance brand tempering valve.



• A condensation drain line is required

to be tted to carry discharge clear

of water heater.

• Condensate drain line should not be

connected to the PTR Valve drain

line but can exit to the same point.



• It is recommended that all hot

water lines are insulated with high

temperature, UV resistant 13mm

closed cell insulation.

Installation Instructions

Hot

Tempered

Cold

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