Thermann 80THMB136 Guide de l'utilisateur

INSTALLER’S

MANUAL

Electric Storage Water Heaters

Models

80THMB136 | 125THMB118 | 125THMB136

N135THMB118 | N135THMB130 | 160THMB124

160THMB136 | 180THMD124 | 180THMD130

180STHM124 | 180STHM130 | 250THMB136

250THMB236 | N250THM124 | N250THM130

N300THM124 | N300THM130 | 315THMB136

315THMB236 | 315THMB248 | 400THMB136

400THMB248

Note – an ‘H’ at the end of the model

number indicates that the water heater

has been pre-ﬁtted with a hard-water

anode (not available in all models).

Thermann Installer’s Manual

Electric Storage Water Heaters

IMPORTANT SAFETY INFORMATION

WARNING – THIS APPLIANCE

MAY DELIVER WATER AT HIGH

TEMPERATURE. REFER TO THE

PLUMBING CODE OF AUSTRALIA

(PCA), LOCAL REQUIREMENTS AND

INSTALLATION INSTRUCTIONS TO

DETERMINE IF ADDITIONAL DELIVERY

TEMPERATURE CONTROL IS REQUIRED.

WARNING – FOR CONTINUED

SAFETY OF THIS APPLIANCE IT MUST

BE INSTALLED, OPERATED AND

MAINTAINED IN ACCORDANCE WITH

THE MANUFACTURER’S INSTRUCTIONS.

This water heater 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 water heater by a person

responsible for their safety.

Children should be supervised to ensure

they do not interfere with the water

heater. Ensure animals are supervised

so they do not interfere with the water

heater.

DO NOT store chemicals or ﬂammable

materials, or spray aerosols near this

water heater.

DO NOT modify this water heater.

DO NOT operate the water heater with

any panels or covers removed.

If the water heater is not used for two

weeks or more, a quantity of hydrogen

(which is highly ﬂammable) may

accumulate inside the water heater tank.

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, open ﬂame or any other electrical

appliance operating nearby. If hydrogen is

discharged through the tap it will probably

make a sound similar to air escaping.

RELIEF VALVE:

The Pressure & Temperature Relief (PTR)

Valve must be installed directly into the

RP½” (DN15) socket marked “RELIEF

VALVE”.

The PTR valve rating is 1,000 kPa and

10 kW on electric water heaters.

The valve must not be tampered with or

removed. The water heater must not be

operated unless this valve is ﬁtted and in

working order.

The drain line from the PTR Valve must

be installed in a continuously downward

direction in a frost free environment.

The PTR Valve is to be operated regularly

to remove lime deposits and to verify

it is not blocked. The drain line ﬁtted to

the PTR Valve must be left open to the

atmosphere.

DANGER – FAILURE TO OPERATE THE

PTR VALVE EASING LEVER AT LEAST

ONCE EVERY SIX MONTHS MAY RESULT

IN THE WATER HEATER EXPLODING.

CONTINUOUS LEAKAGE OF WATER

FROM THE VALVE MAY INDICATE A

PROBLEM WITH THE WATER HEATER.

IMPORTANT SAFETY INFORMATION

The PTR Valve should be checked by

a licensed tradesperson for adequate

performance, or replaced at intervals not

exceeding 5 years, or less in areas where

local regulations apply.

It is normal for water to drip from the

drain line ﬁtted to the PTR Valve during

heating cycles.

Continuous leakage of water from the

PTR Valve may indicate a problem with

the water heater. This may be caused by

excessive water supply pressure, a faulty

PTR Valve or a faulty thermostat.

Turn o the water heater and contact

Customer Service for advice if required:

• 1300 412 612 (Australia);

• +61 3 8678 4259 or contact your local

Reece branch (New Zealand) .

OVER-TEMPERATURE ENERGY CUT-

OUT:

The operation of the over-temperature

energy cut-out indicates a possibly

dangerous situation. Do NOT reset the

over-temperature energy cut-out until

the water heater has been serviced by a

licensed tradesperson.

ELECTRICAL SAFETY:

This water heater is designed for single

phase 230 - 240V a.c. supply only. The

electrical connection must comply with

Local Supply Authority Regulations and

AS/NZS 3000 (known as the Wiring

Rules). A means for disconnection must

be incorporated in the ﬁxed wiring in

accordance with the Wiring Rules.

Any electrical covers should be removed

only by a licensed tradesperson, and only

after the electrical supply to the water

heater has been isolated.

When the supply wiring has been

connected, ensure the wires are kept

lower than the terminal block.

Excess wire is not to be looped close to

the thermostat or tank.

In addition to the Pressure & Temperature

Relief Valve, electric storage water heaters

are ﬁtted with a combination thermostat

and over-temperature energy cut-out.

This device must not be tampered with

or removed. Replacement of this device

must only be carried out by a licensed

tradesperson or the manufacturer.

The water heater must not be operated

unless this device is ﬁtted and in working

order.

COLD WATER CONNECTION:

The water heater is intended to be

permanently connected to the water

supply main, and not connected by a

hose-set.

This water heater is designed for direct

connection to water supply pressures

of up to

800 kPa

Where the mains pressure can exceed or

ﬂuctuate beyond this pressure, a pressure

reducing valve must be ﬁtted in the cold

water inlet supply.

Instructions explaining how the water heater

can be drained can be found on page 6.

Thermann Installer’s Manual

Electric Storage Water Heaters

INSTALLATION REQUIREMENTS

GENERAL:

This water heater must be installed by a

licensed tradesperson, and in accordance

with:

• In Australia, the Plumbing Code of

Australia (PCA);

• In New Zealand, Clause G12 of the

New Zealand Building Code (NZBC);

• AS/NZS 3000 Electrical Installations

(known as the Australian / New

Zealand Wiring Rules); and

• Local authority regulations.

Outside Australia and New Zealand,

please refer to local plumbing and

building codes and regulations.

Failure to comply with these requirements

may aect the warranty.

AS/NZS 3500.4 Plumbing and Drainage

– Heated Water Services provides a

Deemed-to-Satisfy Solution for the

PCA and a Veriﬁcation Method for

Clause G12 of the NZBC. Other methods

of compliance are available. Dux

recommends that installations conform

with AS/NZS 3500.4.

NOTE FOR VICTORIA:

This water heater must be installed by

a licensed person as required by the

Victorian Building Act (1993).

Only a licensed person will provide a

compliance certiﬁcate, showing that

the work complies with all the relevant

Standards. Only a licensed person

will have insurance protecting their

workmanship.

LOCATION:

The water heater should be located as

close as possible to the most frequently

used hot water outlet.

Ensure the compliance plate and

associated warnings are clearly visible.

The water heater must be accessible

without the use of a ladder or scaold.

Adequate clearance must be available for

service to the element, thermostat, relief

valve and anode. All models are equipped

with a sacriﬁcial anode, allow half of the

height of the water heater to provide

access through the top cover.

Electric storage water heaters may be

installed indoors. A properly drained safe

tray must be installed where property

damage could occur from water spillage.

Refer to AS/NZS 3500.4 for further

information.

Refer to local regulations before installing

the water heater in a roof space.

WATER HEATER SUPPORT:

The water heater must be installed on

a ﬂat, solid supporting surface. The

pipework must not be used to support the

water heater.

Where the water heater is subjected to

wet conditions, a plinth should be installed

under the water heater.

POOL HEATING:

This water heater must

not

be used for

pool heating.

IMPORTANT SAFETY INFORMATION

iii

Speciﬁcations and materials may change without notice.

Eective for all Thermann 80L to 400L Electric Storage Water Heaters

manufactured and sold after 1st September 2021.

CONTENTS

Important Safety Information i

Installation Requirements iii

Technical Data 2

Plumbing Connections 4

Filling and Draining 5

Electrical Connection 7

Handover to the Customer 8

Thermann Installer’s Manual

Electric Storage Water Heaters

TECHNICAL DATA

MODEL 80L 125L 160L 250L 315L 400L

Speciﬁcations:

Storage Capacity Litres 88 130 161 259 321 415

Hot Water Delivery Litres 80 125 160 250 315 400

Boost Capacity (Twin Element) Litres - - - 50 50 80

Net Weight Empty kg 41 51 59 72 93 115

Element Size (Single Element) kW 3.6 1.8/3.6 2.4/3.6 3.6 3.6 3.6

Element size (Twin Element) kW - - - 2 x 3.6kW 2 x 3.6kW

2 x 4.8kW 2 x 4.8kW

Relief Valve Pressure kPa 1,000 1,000 1,000 1,000 1,000 1,000

Relief Valve Temperature oC 99 99 99 99 99 99

Relief Valve Power Rating kW 10 10 10 10 10 10

Nominal Dimensions:

Total Height (A) mm 925 1090 1315 1445 1765 1705

Diameter (B) mm 490 530 530 620 620 705

Outlet Height (C) mm 735 865 1095 1210 1530 1445

Inlet Height (D) mm 160 190 190 195 195 220

Element Cable Entry* (E) mm 85 100 100 105 105 130

*Electrical entry for twin elements is also only under the bottom element.

Single Element

Twin Element

TECHNICAL DATA

529

OVERALL

45°

25°

N135THM & 180THMD 180STHM, N250THM, N300THM

MODEL N135THM 180THMD

Speciﬁcations:

Storage Capacity L 131 183.5

Net Weight Empty kg 50 65

Element(s) Sizes kW 1.8, 3.0 2.4, 3.0

Relief Valve Pressure kPa 1000 1000

Relief Valve Temperature

°C 99 99

Relief Valve Power Rating

kW 10 10

Nominal Dimensions:

Total Height (A) mm 1298 1776

Total Diameter (B) mm 492 492

Outlet Height (C) mm 1106 1574

Inlet Height (D) mm 156 156

MODEL

180STHM

N250THM

N300THM

Speciﬁcations:

Storage Capacity L 183.5 250 291

Net Weight Empty kg 60 77 94

Element(s) Sizes kW 2.4, 3.0 2.4, 3.0 2.4, 3.0

Relief Valve Pressure kPa 1000 1000 1000

Relief Valve Temperature

°C 99 99 99

Relief Valve Power Rating

kW 10 10 10

Nominal Dimensions:

Total Height (A) mm 1190 1566 1804

Total Diameter (B) mm 580 580 580

Outlet Height (C) mm 964 1342 1580

Inlet Height (D) mm 196 196 196

Thermann Installer’s Manual

Electric Storage Water Heaters

PLUMBING CONNECTIONS

Relief Valve:

The Pressure & Temperature Relief

(PTR) Valve is supplied either inside the

electrical cover of the water heater or

in a bag attached to the water heater.

Instructions on how to remove the

electrical cover can be found on

page 7. Discard the packaging containing

the PTR Valve and brass plugs.

The PTR Valve rating is 1,000 kPa.

The PTR Valve rating is also shown on

the compliance plate. The PTR Valve

must be installed directly into the

RP½”(DN15) socket marked “RELIEF

VALVE” at the top of the water heater.

Ensure that a sealing material is applied

to the PTR Valve to prevent water leaks.

The drain line from the PTR Valve

must be made of copper and run in

accordance with the requirements of

AS/NZS 3500.4. It must be installed in

a continuously downward direction in a

frost free environment.

The PTR Valve and its drain line must

not be sealed or blocked. Generally a

separate drain line must be run for the

valve although it may be joined with the

drain line from the expansion control

valve under certain circumstances.

Care must be taken when attaching pipe

saddles to the water heater. Self-drilling

screws no longer than 12 mm are

recommended.

It is normal for the valve to leak a small

amount of water during heating cycles.

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 to AS/NZS 3500.4 for guidance on

these types of installations.

Hot Water Connection:

The hot water pipe is to be connected to

a RP¾”(DN20) socket marked “OUTLET”

at the top of the water heater.

On dual handed models, the unused

socket marked “OUTLET” is to be

plugged with one of the brass plugs

supplied. Ensure that a sealing material

is applied to the brass plug to prevent

water leaks.

It is recommended that all hot water

pipes are insulated. Hot water pipes

installed outdoors should be insulated

with UV stabilised insulation.

Plastic pipes or ﬁttings shall not be used

within 1 metre of the outlet although

they may be used downstream of a

temperature control valve. Refer to

AS/NZS 3500.4 for further details.

Temperature Protection:

Water heaters can produce very hot

water. To reduce the risk of scald injury,

it is mandatory under the requirements

of AS/NZS 3500.4 that an approved

temperature control device is ﬁtted to

the hot water supply to outlets used

primarily for personal hygiene. This

device should be checked at regular

intervals to ensure its operation and

settings remain correct.

Water Supply:

This water heater has been manufactured

to suit the water conditions of

PLUMBING CONNECTIONS

most Australian and New Zealand

metropolitan supplies.

Please note certain water supplies can

have a detrimental eect on the water

heater and its life expectancy. If you are

unsure about the water supply, you can

obtain information from the local water

supply authority.

The water heater is designed for use in

areas where the Total Dissolved Solids

(TDS) content of the water supply is

less than 2500 mg/L. The Tank Failure

Warranty (see Owner’s Guide) does not

apply in areas where the TDS exceeds

2500 mg/L.

In areas where the TDS exceeds

600 mg/L, it is possible the magnesium

alloy anode (supplied in standard water

heaters) may become over-reactive.

To alleviate this, a hard water model

is recommended, or the magnesium

alloy anode should be replaced with an

aluminium alloy anode. Aluminium alloy

anodes are available from your local

Reece Branch.

Water can also be very corrosive, the

measure of this is the saturation index. If

the water saturation index is greater than

0.40, an expansion control valve should

be ﬁtted. If the index is greater than 0.80,

the electrical heating element should

be replaced with a low power density

Incoloy heating element. Please consult

Customer Service for advice if required:

• 1300 412 612 (Australia);

• +61 3 8678 4259 or contact your local

Reece branch (New Zealand) .

Cold Water Connection:

The water heater is intended to be

permanently connected to the water

supply main, and not connected by a

hose-set.

An approved isolating valve, non-

return valve, line strainer (optional but

recommended) and union must be ﬁtted

between the water supply main and a

RP¾”(DN20) socket marked “INLET” at

the bottom of the water heater. See the

diagram on page 5 and 6 for details.

All ﬁttings must be approved by the

relevant Authority. Plastic pipes or

ﬁttings shall not be used between the

isolating valve and the inlet.

On dual handed models, the unused

socket marked “INLET” is to be plugged

with one of the brass plugs supplied.

Ensure that a sealing material is applied

to the brass plug to prevent water leaks.

Water Supply Pressure:

This water heater is designed for direct

connection to water supply pressures of

up to

800 kPa

Where the mains pressure can exceed

or ﬂuctuate beyond this pressure, a

pressure reducing valve must be ﬁtted in

the cold water inlet supply.

Note for New Zealand, South Australia

and Western Australia:

It is a requirement in these locations that

an expansion control valve be ﬁtted on

the cold water supply line between the

non-return valve and the water heater.

Thermann Installer’s Manual

Electric Storage Water Heaters

FILLING AND DRAINING

Filling the Water Heater:

The water heater must be ﬁlled with

water before turning on the electrical

supply.

1. Open all hot water taps.

2. Open the isolating valve at the cold

water inlet slowly and allow the

water heater to ﬁll until water ﬂows

through the system.

3. Close each hot water tap after the

air is expelled from its line.

4. Open the Pressure & Temperature

Relief Valve for approximately

10 seconds by lifting the easing

lever on the valve. Conﬁrm water is

relieved to waste through the relief

valve drain pipe.

5. Lower the lever gently and check it

closes correctly.

Draining the Water Heater:

1. Turn o the electricity supply to the

water heater.

2. Turn o the cold water supply to the

water heater at the isolating valve.

3. Gently operate the easing lever on

the Pressure & Temperature Relief

(PTR) Valve to release the pressure

in the water heater.

4. Disconnect the cold water inlet

union and attach a drain hose to the

water heater.

5. Gently operate the easing lever

on the PTR Valve to let air into the

water heater and allow water to

escape through the hose.

Note: a combined isolating valve/non-return valve/line strainer may be used.

The expansion control valve is only required where local regulations demand,

although it is recommended in areas where the water saturation index is greater

than 0.40.

Cold Water Connection Diagram:

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