Thermann 80THM136 User manual

OWNER’S
GUIDE
Electric and Gas Storage Water Heaters
Safety Information
Owner’s Information
Warranty
Models
Electric Storage Water Heaters:
80THM136 | 125THM118 | 125THM136
160THM124 | 160THM136 | 250THM136
315THM136 | 400THM136
Gas Storage Water Heaters:
135THM4N | 135THM4P
170THM4N | 170THM4P
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 Owner’s Guide
Electric and Gas Storage Water Heaters
Installation 1
Safety Information 2
Water Supply and Connection 4
Lighting Gas Water Heaters 5
Owner’s Information 6
Warranty 8
CONTENTS
Specifications and materials may change without notice.
Effective for all Thermann Electric and Gas Storage Water Heaters
manufactured and sold after 1st July 2015.

1
INSTALLATION
Installation Requirements:
This water heater must be installed
by a licensed tradesperson, and in
accordance with:
• AS/NZS 3500.4 Plumbing and
Drainage – Heated Water Services
(in Australia).
• Clause G12 of the NZ Building Code
(in New Zealand).
• AS/NZS 3000 Electrical Installations
(known as the Australian / New
Zealand Wiring Rules) (for electric
storage water heaters).
• AS/NZS 5601.1 Gas Installations –
General Installations (for gas storage
water heaters).
• 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 certificate, showing that
the work complies with all the relevant
Standards. Only a licensed person
will have insurance protecting their
workmanship.
Make sure you use a licensed person
to install this water heater and ask for
your Compliance Certificate.
Location:
The water heater should be located
as close as possible to the most
frequently used hot water outlet.
Ensure that the data plate and
associated warnings are clearly visible.
Adequate access must be available for
service to the water heater.
Note - all models are equipped with a
sacrificial anode, accessible through
the top cover. Allow 50% of the height
of the water heater as clearance above
the water heater to allow a licensed
tradesperson to replace the anode.
The water heater must be installed on
a flat, solid supporting surface.
Where the water heater is subjected
to wet conditions, a plinth should be
installed under the water heater.
Gas storage water heaters must be
installed outdoors. The gas installation
standard specifies minimum clearances
to items such as windows and doors.
Electric storage water heaters may be
installed indoors. The heated water
services standard requires that a
properly drained overflow tray be used
where property damage could occur
from water spillage.
Note - the warranty will not cover
damage due to leakage of the water
heater if a properly drained overflow
tray has not been installed.
Pool Heating:
This water heater must not be used for
pool heating.

2
Thermann Owner’s Guide
Electric and Gas Storage Water Heaters
SAFETY INFORMATION
General:
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 and animals should be
supervised to ensure that they do not
interfere with the water heater.
DO NOT place articles on or against
this water heater.
DO NOT use store chemicals or
flammable materials, or spray aerosols
near this water heater.
DO NOT operate with panels or covers
removed from the water heater.
Temperature Protection:
Water heaters can produce very
hot water. To reduce the risk of
scald injury, it is mandatory that an
approved temperature control device
be fitted 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.
Relief Valve:
The Pressure & Temperature Relief
(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 rating is shown on the
data plate. 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 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.
The PTR Valve and its drain outlet
pipe must not be sealed or blocked.
A separate drain line must be run for
the valve. It is normal for the valve to
leak a small amount of water during
heating cycles.
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
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 off the water heater and contact
Customer Service on 1300 412 612.

3
SAFETY INFORMATION
Caution - Intermittent Use:
If the water heater is left turned on
but unused 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 that of air escaping.
Electric Storage Water Heaters:
Storage electric water heaters are
designed for single phase 240V A.C.
supply only. The electrical connection
must comply with Local Supply
Authority Regulations and
AS/NZS 3000.
Any electrical covers should
be removed only by a licensed
tradesperson, and only after the
electrical supply to the water heater
has been isolated.
In addition to the PTR 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.
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.

4
Thermann Owner’s Guide
Electric and Gas Storage Water Heaters
WATER SUPPLY & CONNECTION
Water Supply:
Your water heater has been
manufactured to suit the water
conditions of most Australian
metropolitan supplies.
Please note that certain water supplies
can have a detrimental effect on the
water heater and its life expectancy.
If you are unsure about your water
supply you can obtain information
from your 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. In areas
where the TDS exceeds 600mg/L it
is possible that 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
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 (fitted to electric storage
water heaters) should be replaced with
a low power density Incoloy heating
element. Please consult Customer
Service on 1300 412 612 for advice if
required.
Hot Water Connection:
It is recommended that all hot water
pipes are insulated. Hot water pipes
installed outdoors should be insulated
with UV stabilised insulation.
Cold Water Connection:
An approved isolating valve, non-
return valve, line strainer (optional but
recommended), and union must be
fitted between the supply main and
the water heater.
Water Supply Pressure:
This water heater is designed for direct
connection to water supply pressures
of:
Electric Storage Water Heaters:
- 800 kPa
Gas Storage Water Heaters:
- 1,120 kPa
Where the mains pressure can exceed
or fluctuate beyond the pressure
shown above, a pressure reducing
valve must be fitted in the cold water
inlet supply.
Note for South Australia and Western
Australia:
It is a state requirement that an
expansion control valve be fitted on
the cold water supply line between the
non-return valve and the water heater.

5
LIGHTING GAS WATER HEATERS
Do not light the water heater until it has
been filled with water (see the Filling the
Water Heater section on page 6).
The lighting procedure is on the inside
of the access cover and is also explained
below:
1. Turn the knob fully clockwise to the “•”
(off) position.
2. Wait five (5) minutes so any build up
of unburnt gas can escape.
3. Turn the knob to the (pilot) position.
4. Depress the knob fully (until
disappears below housing) and after
thirty (30) seconds, whilst keeping the
knob depressed, repeatedly press the
igniter button (for up to 40 seconds)
until the pilot flame ignites.
Note - it is not possible to depress
the knob fully if the gas control has
activated its safety shutoff feature. In
this case, wait sixty (60) seconds for
the gas control to reset.
5. Keep the knob depressed for twenty
(20) seconds after the pilot flame
lights. The pilot flame can be observed
if a mirror is placed directly below the
pilot assembly.
6. Release the knob and check if the pilot
is still alight.
7. If the pilot has failed to light or has not
remained alight, turn the gas control
knob to “•” (off). Wait five (5) minutes
for the escape of unburnt gas, then
begin again at step 3.
8. When the pilot flame remains alight
with the knob released, turn the knob
anticlockwise to one of the number
settings. A minimum setting of “6”
is recommended and this will give a
water temperature of about 60ºC.
9. Turn the knob to a higher number for
higher water temperatures.
10. If the main burner does not light
at the selected setting, the water
may already be at the selected
temperature.
11. Replace the access panel and ensure
that it is firmly in position.
Warning:
Do not attempt to light if the pilot is out
and the knob is in the “ON” position (one
of the number settings). Follow the steps
above.
Shutting Down the Water Heater:
1. Turn the knob to “•” (off) position.
2. Turn off the gas isolation valve.
3. Turn off the water isolating valve.
Never turn o the gas supply without
turning the gas control o first.
Thermostat and
gas control knob Igniter

6
Thermann Owner’s Guide
Electric and Gas Storage Water Heaters
OWNER’S INFORMATION
Filling the Water Heater:
The water heater must be filled with
water before turning on the electrical
supply or lighting the gas.
• Open all hot water taps.
• Open the isolating valve at the cold
water inlet slowly and allow the water
heater to fill until water flows through
the system.
• Close each hot water tap after the air
is expelled from its line.
• Open the Pressure & Temperature
Relief (PTR) Valve for approximately
10 seconds by lifting the easing lever
on the valve. Confirm that water is
relieved to waste through the relief
drain pipe.
• Lower lever gently and check that it
closes correctly.
Draining the Water Heater:
• Turn off the electricity supply or the
gas supply to the water heater.
• Turn off the cold water supply to the
water heater at the isolating valve.
• Gently operate the easing lever on
the PTR Valve to release the pressure
in the water heater.
• Disconnect the cold water inlet union
to the water heater and attach a
drain hose.
• Gently operate the easing lever on
the PTR Valve to let air into the water
heater and allow water to escape
through the hose.
System Maintenance:
Failure to operate the Pressure &
Temperature Relief (PTR) Valve
easing lever at least once every six
months may result in the water heater
exploding.
Open the PTR Valve for approximately
10 seconds by lifting the easing lever on
the valve. Confirm that water is relieved
to waste through the relief drain pipe.
Lower the easing lever gently and
check that it closes correctly.
Other than this, personally inspecting
or servicing any part of the water
heater is not recommended.
Five Year Service
(By Authorised Personnel Only):
After each five years of operation, you
should contact your local service agent
to carry out the following:
• Replace the Pressure & Temperature
Relief (PTR) Valve.
• Replace the anode.
• Drain and flush the water heater.
In locations where the water supply has
a Total Dissolved Solids (TDS) content
exceeding 600mg/L (see the Water
Supply section on page 4), this service
is recommended every three years.
The service must be carried out by a
licensed tradesperson who may obtain
replacement parts from your local
Reece branch.

7
OWNER’S INFORMATION
Considering a Service Call?
It is recommended that the following
points be reviewed before making a
service call:
No Hot Water:
• If you have a gas storage water
heater, confirm the gas burner and/
or pilot is on and operating. If off,
see lighting instructions on page 5.
• If you have an electric storage water
heater, ensure that the power supply
circuit breaker has not “tripped”.
If the water heater is on a timed
tariff such as off-peak, ensure this is
operating correctly.
High Gas or Electricity Bills or
Insucient Hot Water:
• Consider that often the hot water
usage of showers, washing machines
and dishwashers can be under
estimated. Review these appliances
to determine if your daily usage is
greater than the capability of your
water heater.
• If necessary check the shower flow
rates with a bucket, measuring the
amount of water used over that
period of time. If it is not possible
to adjust water usage patterns, an
inexpensive flow control valve can
easily be fitted to the shower outlet.
• Do you have the correct size water
heater for your requirements? Sizing
details are available from your local
Reece branch.
• Is the Pressure & Temperature Relief
Valve discharging too much water?
See below.
• Is there a leaking hot water pipe or
dripping hot water tap? A small leak
can waste a large quantity of hot
water. Replace faulty tap washers
and have your plumber rectify any
leaking pipe work.
Continuous Trickle of Water from
Pressure & Temperature Relief (PTR)
Valve:
This is most likely due to a build up of
foreign matter. In this case, try gently
raising the easing lever on the PTR
Valve for a few seconds, then release
gently.
This may dislodge a small particle of
foreign matter and rectify the fault.
Water Discharge from PTR Valve:
It is not unusual for a small quantity
of water to discharge during the
heating of water in your storage tank.
The amount of discharge will depend
on hot water usage and size of the
storage tank.
As a guide, it will discharge about 2%
of the volume of the water heated.
Continuous leakage of water from the
PTR Valve may indicate a problem
with the water heater. Please refer to
the Relief Valve section on page 2.
If after checking the above points,
the problem has not been identified,
please contact Customer Service on
1300 412 612.

8
Thermann Owner’s Guide
Electric and Gas Storage Water Heaters
WARRANTY
Thermann Electric or Gas Storage Water
Heater (“Unit”) Warranty:
Manufactured by Dux Manufacturing
Limited (“Dux”)
• 7 years tank warranty.
• 1 year parts and labour.
The benefits provided to you by the
warranty and replacement guarantee
(collectively “Warranty”) are in addition
to the guarantees and other rights and
remedies available to you under the
Australian Consumer Law (“ACL”).
If the Unit fails to conform to this
Warranty during the applicable period,
Dux will replace any failed component
or where necessary, in the absolute
discretion of Dux, replace the Unit free of
charge including reasonable labour costs
incurred in normal business working
hours.
This Warranty only applies to defects
which have arisen solely from faulty
materials or workmanship in the Unit and
does not apply to other defects which
may have arisen as a result of, without
limitation, the following:
accidental damage, abuse, misuse,
maltreatment, abnormal stress or strain,
harsh or adverse water conditions
including excessive water pressure or
temperature, neglect of any kind or
otherwise as a result of any use of the
Unit contrary to the product manual or
other instructions provided by Dux.
Alterations or repair of the Unit other than
by an accredited and licensed service
agent or technician are not covered.
Attachment of accessories or use of non
genuine replacement parts other than
those manufactured or approved by Dux
are not covered by this Warranty.
This Warranty applies only to the
Unit and does not cover any ancillary
plumbing or electrical parts supplied
by the installer such as pressure limiting
valve, tempering valve, line strainer,
stop cocks, non-return valve, electrical
switches, pumps or fuses, or faulty
installation.
The Unit must be installed by a
licensed tradesperson in accordance
with information set out in the manual
supplied with the Unit and/or any
relevant statutory requirements. If the
Unit is located in a position that does not
comply with the installation instructions
or relevant statutory requirements, then
this Warranty does not cover major
dismantling or removal of cupboards,
doors, walls or special equipment and/
or excessive labour, at the determination
of Dux, to make the Unit accessible for
repair or replacement.
As required by legislation, including
under the ACL, any claims for damage
to furniture, carpets, walls, foundations
or any other consequential loss either
directly or indirectly due to defects
of any kind in a Unit will only be met
by Dux where the damage could be
considered reasonably foreseeable and
installed complying with the installation
instructions and all relevant statutory
requirements.

9
WARRANTY
In addition to this Warranty, certain
legislation (including the ACL) may
give you rights which cannot be
excluded, restricted or modified. This
Warranty must be read subject to
such legislation and nothing in this
Warranty has the effect of excluding,
restricting or modifying those rights.
If Dux fails to meet a guarantee under
the ACL, your remedy for such failure
may be limited to any one or more of
the following:
• replacement of the Unit;
• repair of the Unit;
• refunding the cost of the Unit;
• payment of reasonable costs of
having the Unit repaired;
• payment in respect of the reduced
value of the Unit.
Warranty claims can be placed by
completing the following steps:
• Contact Customer Service on
1300 412 612.
• Provide the serial number and model
number of the Water Heater. This
can be found on the data plate.
• Provide full name, address and
contact number.
• Provide proof of installation of the
unit, for warranty to commence
from the Date of Installation of
the unit. If proof of installation or
purchase cannot be provided, then
Date of Manufacture of the unit
will be used to determine warranty
commencement date.
Contact Details:
Dux Manufacturing Limited
Lackey Road
Moss Vale, NSW, 2577
Australia
1300 412 612
Email: duxaft[email protected]om.au
Our goods come with guarantees
that cannot be excluded under the
Australian Consumer Law.
You are entitled to a replacement
or refund for a major failure and
for compensation for any other
reasonably foreseeable loss or
damage. You are also entitled to have
the goods repaired or replaced if the
goods fail to be of acceptable quality
and the failure does not amount to a
major failure.

028044 Rev. A