Dux 2F136S Instructions de montage
Specications and materials may change without notice.
Effective for electric boosted solar water heaters manufactured and sold after 1 January 2012.
Installation by a licensed tradesperson and in
accordance with:
• 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
Carefully remove all packaging and
transit protection from the heater before
installation. Dispose of the packaging
responsibly using re-cycling facilities
where they exist.
H3163 025247 Rev. C
For advice, repairs and service, call:
1300 365 115 (Australia)
0800 729 389 (New Zealand)
Models: 2F136S
2F136SD
3F136S
3F136SD
4F136S
4F136SD
2S136ED
3S136ED
4S136ED
Installer’s Guide
For an easier installation, please read this document before you begin.
On completion, sign and leave with owner.
Electric Boosted Solar
Water Heater
Electric Boosted Solar
H3163 025247 Rev. C
Installer’s Guide
Rough In Diagram 1
Model Numbers 2
Safety Audit 3
Removal of Existing Tank 4
Placement of New Tank 4
Water Connections 5
Pipes – Important Points 6
Collectors – Alignment
and Inclination 8
Collectors – Important Points 9
Collectors – Attaching to Roof 10
Collectors – Attaching Fittings 12
4 Way Union Assembly 15
Anti-Frost Valve 16
Flashing 17
Temperature Sensor 18
Only if installing models 20
Non Return Valve 21
PTR Valve and Drain Down Line 22
GPO 23
Tempering Valve 24
Commissioning the System 24
Commissioning Checklist 25
Installation Declaration 26
Components 27
Exploded Diagrams 28
© 2012. All rights reserved.
Electric Boosted Solar
1
H3163 025247 Rev. C
Rough In Diagram
Approximate location of pipework. A tolerance of 25mm is acceptable to dimensions shown in table below.
Note: Ensure pipes protrude horizontally from wall, and leave enough length of pipe to allow easy
connections.
250 L 315 L 400 L
Tank Height 1444 1754 1704
Overall diameter 617 617 705
A Hot water outlet 1211 1521 1445
B Tempered water outlet (mid-way between A and D) 624 779 742
C Flow to solar collectors 507 507 531
D Cold water inlet 195 195 219
E Drain to waste 592 592 616
F Return from solar collectors 628 838 642
100
A
B
C
D
EF
Hot
Drain to Waste
Flow
Cold
Tempering
Valve
100
Return
Electric Boosted Solar
2H3163 025247 Rev. C
Installer’s Guide
• Below is a list of model numbers:
Model
Number
Capacity
(L)
Panel
Management
2F136S 250 No
2F136SD 250 Yes
2S136ED 250 Yes
3F136S 315 No
3F136SD 315 Yes
3S136ED 315 Yes
4F136S 400 No
4F136SD 400 Yes
4S136ED 400 Yes
• This Installer’s Guide and the
Owner’s Manual (also included in the
product carton) contain important
information about installation and use
of this water heater.
Note: For an easier
installation, please read this
document before you begin.
Electric Boosted Solar
3
H3163 025247 Rev. C
Installer’s Guide
• Arrive at site, park vehicle as close as
allowable to installation, and conduct
a safety audit, also known as Work
Method Statements (WMS) or Job
Site Analysis (JSA).
• Prior to working at heights, it is the
responsibility of the installer to ensure
that all practices are compliant with
any relevant OH&S legislation.
Note: Do not commence a
job where the risks cannot be
controlled.
• Refer to local working at heights
regulations. NSW Ref: “Safe Work on
Roofs – Part 2 Residential” Code of
Practice 2004, Work Cover NSW.
Electric Boosted Solar
4H3163 025247 Rev. C
• The existing tank (if applicable)
should be drained and removed in a
responsible manner.
Note: Do not drain on to grass
or garden beds.
• Safely position new storage tank on
a level surface in accordance with all
plumbing and building regulations.
Note: We recommend a plinth
be installed under the water
heater where the water heater
is subjected to wet conditions.
• Refer to the section called “Rough
In Diagram” on page 1 for detailed
information on position of plumbing.
Install a plinth under the
water heater where the
water heater is subjected
to wet conditions
Installer’s Guide
Electric Boosted Solar
5
H3163 025247 Rev. C
Installer’s Guide
• Using correct plumbing methods,
connect the cold water pipe to the
storage tank.
• According to local regulations and
the plumbing code, t any and
all valves that are necessary e.g.
tempering valves, pressure limiting
valves, line strainer, duo valves, cold
water expansion valves etc.
• We recommend the use of new valves
for all Installation. Refer to plumbing
code and/or local requirements.
• The hot water line should be
connected to the hot water outlet.
Hot water outlet
Cold water inlet
Electric Boosted Solar
6H3163 025247 Rev. C
Installer’s Guide
Critical: Due to the high
temperature imposed by solar
heated water, all solar system
pipes and ttings must be DR
brass and copper, including
collector compression ttings
(as supplied). No plastic pipes
or ttings.
• Flow and return lines must be
installed as direct as possible
between tank and collector.
• Pipes must be fully insulated with
UV stabilized insulation suitable for
solar working temperatures. We
recommend Armaex DuoSolar /
Solar insulation, minimum 13mm
thick (refer to local regulations).
Note: Warranty will be void
if this minimum insulation
requirement is not used.
• It is critical to stop any chance of an
air lock developing, so ensure that:
– no pipework is higher than the
automatic air vent valve
Pipes must be DR
brass and copper.
Refer to AS/NZS
3500.4.
Pipes must be fully
insulated with UV
stabilized insulation
suitable for solar working
temperatures, minimum
13mm thick (refer to local
regulations)
Pipes must have no
high points that allow
air to be trapped
No pipes can be higher than
the air bleed valve
Electric Boosted Solar
7
H3163 025247 Rev. C
Installer’s Guide
– ow and return pipes from the solar
collectors to the water storage tank
have a minimum of 5° continuous fall
– pipes have no high points that
allow air to be trapped
– the minimum number of bends in
the pipes are used.
• Flow and return lines should be
neatly installed and hidden inside the
roof cavity if possible.
• Take care when running ow
and return lines through the roof,
cladding and the eaves.
Note: Where roof and
the eaves are made from
asbestos, specialised handling
and advice is necessary.
Minimum 5°
continuous fall
To collectors
Use minimum
number of bends
Must fully
insulate flow
and return
pipes
Minimum 5°
continuous fall
To collectors
Non continuous
fall
To collectors
Incorrect Correct
Ensure flow and return pipes from the solar collectors to the
water storage tank have a minimum of 5° continuous fall
Electric Boosted Solar
8H3163 025247 Rev. C
Installer’s Guide
Solar Collector Alignment
• For the most efcient solar gain, the
collectors must be aligned ±45° from
true north (i.e. north west to north
east). See Collector Orientation
Compass below.
Solar Collector Inclination
• For the most efcient solar gain, the
collectors must be inclined within
10° to 45° from horizontal. See
Collector Inclination Guide right.
True North
NW NE
Surface Plate EastWest
45°
50° from
true north
70° from
true north 45°
B
Collector Orientation Compass
True North
A
A = 500mm, or greater if roof allows
B = Between 10° and 45°
B
Note: When establishing the correct Collector Orientation, please account
for the Magnetic Declination of your geographic location
Collector Inclination Guide
C
A
C
A. Preferred range
B. Industry accepted range
C. If orientations A or B are not practical, an additional collector can be
installed at the home owner’s discretion in range C (not required north
of Tropic of Capricorn)
True North
NW NE
Surface Plate EastWest
45°
50° from
true north
70° from
true north 45°
B
Collector Orientation Compass
True North
A
A = 500mm, or greater if roof allows
B = Between 10° and 45°
B
Note: When establishing the correct Collector Orientation, please account
for the Magnetic Declination of your geographic location
Collector Inclination Guide
C
A
C
A. Preferred range
B. Industry accepted range
C. If orientations A or B are not practical, an additional collector can be
installed at the home owner’s discretion in range C (not required north
of Tropic of Capricorn)
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