Dux D2FHG3000C airoheat Manuel utilisateur

Heat Pump Water Heater

Specications and materials may change without notice.

Effective for Airoheat® water heaters manufactured and sold after 1st June 2006.

Owner’s Manual

Model: D2FHG3000C

H3025 10153 Rev. H

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

Owner’s Manual – Airoheat®

H3025 10153 Rev. H

Welcome To Dux Hot Water 1

Installation Details 2

Plumbing Connections 5

Electrical Connection 8

Installation Checklist 10

Commissioning The System 11

Operational Diagrams 12

Commissioning Checklist 13

Owner’s Instructions 14

Troubleshooting 17

System Maintenance 19

Safety Information 20

Service Information 21

Warranty 22

Other Information 25

Contents

Owner’s Manual – Airoheat®

H3025 10153 Rev. H

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.

Owner’s Manual – Airoheat®

2H3025 10153 Rev. H

Installation Details

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.

All warranty is voided if the unit is laid

on its side for storage or transport. It

must be stored and transported in a

near vertical position at all times, with

no exceptions.

This water heater is designed for direct

connection to water supply pressures of

no greater than:

250 Litre Model – 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.

Caution: This water heater delivers

hot water at temperatures exceeding

50°C. Refer to AS/NZS3500 and local

regulations regarding the need for

additional temperature control of hot

water delivery.

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.

Owner’s Manual – Airoheat®

H3025 10153 Rev. H

Installation Details

Location

The water heater must be installed

outdoors.

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 element, thermostat,

relief valve and anode.

Note: All models are equipped with 2

sacricial anodes, accessible through

the top cover. Allow 50% of the height

of the water heater for clearance above

to replace the anodes.

The water heater has a plastic base

which is resistant to water damage, but

it is recommended that a concrete plinth

be installed under the water heater

to protect the heater when subjected

to wet conditions and to allow free

circulation of air. 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.

Preferred Location

If possible, the location selected for the

heat pump should be on the warm side

of the home.

The selected location must have free

ambient air ow to prevent cooler

discharged air being drawn back into

the heat pump.

Heat Pump

Allow sufcient clear space so as not

to impede this air ow. Allow 700 mm

clearance above the unit and 150mm

clearance to either side of the unit as a

general rule.

700mm

150mm

Owner’s Manual – Airoheat®

4H3025 10153 Rev. H

Installation Details

Noise Considerations

The selected location must consider

noise impact on living areas, especially

bedrooms, inside the house. Although

the running noise level is very low (51

dB(A)) it can be expected that the heat

pump will run during the night.

The installer can assist in choosing the

appropriate location for the unit.

Air Flow

Ensure the unit is placed in an area were

debris such as leaves and paper etc, will

not collect and block the air outlet on

the top of the unit.

Important: Do not put any objects on

top of the unit!

Transportation

Ensure the unit is always stored and

transported in an upright position.

Note: All warranty is voided if the unit is

laid on its side for storage or transport.

It must be stored and transported in a

near vertical position at all times. There

are no exceptions.

No more than 45˚

from vertical

Owner’s Manual – Airoheat®

H3025 10153 Rev. H

Plumbing Connections

635

Storage Tank Installation

Install and connect the storage tank to

the household water reticulation system

as per local plumbing regulations and

codes.

Install a condensation drain line in a

continuous fall away from the heat

pump to a safe and legal point of

discharge. Usually this would be a

garden bed or similar location.

Installation Dimensions

Table (mm) – 250 Litre

Tank Height (A) 1756

Tank Diameter 632

Height (from base of heater)

Hot Water Outlets (B) 1211

Cold Water Inlets 195

Minimum louvre clearances

Sides 150

Top 700

All measurements approximate only.

Specifications and material are subject to change

without notice.

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

RP¾/20 socket in the water heater.

All ttings must be approved by the

relevant installation Authority.

Owner’s Manual – Airoheat®

6H3025 10153 Rev. H

Plumbing Connections

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 RP¾/20 socket as shown on

the Installation diagram. For the most

economical operation of the water

heater, it is recommended that all hot

water lines are insulated with high

temperature, UV resistant 13mm

closed cell insulation. Please check

local regulations regarding the use of

hot water supply pipe work that are not

made of copper.

Pressure & Temperature Relief

Valve

The Pressure & Temperature Relief Valve

is supplied loose with the water heater.

The valve rating is:

250L Model – 1000kPa

The relief 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

with the discharge end left permanently

open to atmosphere. The Pressure &

Temperature Relief Valve supplied with

the water heater 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)

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.

Water Quality

Your water heater has been

manufactured to suit all water conditions

in “All Water Areas” present in Australia.

Please note that harsh water supplies

can have a detrimental effect on a water

heater and its life expectancy. If you are

unsure about your water quality, you can

obtain information from your local water

supply authority.

Water can also contain material known

to create lime scale where lime scale

can build up and block safety ttings.

One measure of this water quality is

known as the saturation index, if the

saturation index is greater than 0.40

and therefore subject to lime scale an

expansion control valve should be tted

to the unit.

Owner’s Manual – Airoheat®

H3025 10153 Rev. H

Plumbing Connections

Condensation Drain

All heat pump water heaters will create

condensation from the evaporator

coil. The more humid the air, the more

condensation it will create.

The evaporator coil is located at the top

of the unit, conforming to the outside of

the tank. When condensate is created,

it runs into the “Condensate Tray” which

sits on top of the storage tank. This

then runs out through the “Condensate

Drain” which is a feature of the tray. A

plastic drain pipe is attached to this

drain allowing easy access for the

plumber to attach the condensate drain

line away from the heater. The louvre

now incorporates a condensate drain

cover, to offer protection to the drain.

Drain pipe

Filling The System With Water

Once the system plumbing is completed

for the household and the unit has also

been connected, the tank can be lled

with water and pressurised.

Caution: The water heater must be

lled with water before turning on the

electricity supply.

Caution: If the water heater is left in

an operating condition and unused

for two weeks or more, a quantity of

hydrogen (which is highly ammable)

may accumulate in the top of the water

cylinder. To dissipate this gas safely, it is

recommended that a hot tap be turned

on for several minutes at a sink, basin

or bath, but not a dishwasher, clothes

washer or other appliance. During this

procedure, there must be no smoking,

no open ame or any other electrical

appliance operating nearby. If hydrogen

is discharged through the tap it will

probably make an unusual sound similar

to that of air escaping.

Owner’s Manual – Airoheat®

8H3025 10153 Rev. H

Electrical Connection

The unit is designed for connection to

- CONTINUOUS TARIFF, single phase

240 volt AC supply.

- Tariff 33 (QLD only), single phase 240

volt AC supply.

The electrical connection must comply

with local supply authority regulations

and AS3000.

The unit is rated at 10 amps (2 core and

earth) so the power mains supplying

the unit must have a 10 amp minimum

double pole circuit breaker tted.

For the Electrician the access cover

may be removed by undoing the two

screws on the cover and sliding the

cover downward to disengage it from

the case.

Note: The water heater is tted with

an electronic temperature control and

an over-temperature energy cut-out.

Under no circumstances should the

water heater be operated without

both these devices being in the circuit.

Replacement must be carried out by a

qualied electrician or the manufacturer.

Danger: The operation of the thermal

cut-out indicates a possibly dangerous

situation. Do NOT reset the thermal

cutout until the water heater has been

serviced by a qualied person.

Caution: Water heater must be lled

with water before turning on the

electricity supply.

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