Conergy PTY LTD Conergy AS System Quick start guide

CONERGY PTY LTD
Conergy AS Owner &
Installation Manual

Envirosun AS Installation Manual Rev1a PVNW.docx Page 1
Table of Contents
1Customer Information................................................................................................................2
1.1 Installing your new Conergy AS System ..........................................................................2
1.2 Conergy quality.................................................................................................................2
1.3 System Components ........................................................................................................2
1.4 Conergy model numbers explained..................................................................................4
1.5 Is the system suitable for extremely cold climates? .........................................................4
1.6 Important safety information.............................................................................................5
1.7 If the customer is away for a long period of time..............................................................5
1.8 Water discharge through the pressure valve....................................................................5
1.9 Hydrogen gas can accumulate!........................................................................................5
2Troubleshooting.........................................................................................................................6
2.1 Low solar energy input .....................................................................................................6
2.2 Solar collector shading .....................................................................................................6
2.3 AES (Booster) system not operating................................................................................6
2.4 Excessive water discharge from the valves .....................................................................6
2.5 Hot water use higher than anticipated..............................................................................6
2.6 Water discharge from the frost valve................................................................................7
3System Maintenance.................................................................................................................8
3.1 Draining and flushing the system .....................................................................................8
3.2 Collector glass cleaning....................................................................................................8
3.3 Hail damage or broken collector glass .............................................................................8
3.4 Relief valves .....................................................................................................................9
4Important Installation Information............................................................................................10
4.1 Local Standards..............................................................................................................10
4.2 Safety..............................................................................................................................10
4.3 Water Quality..................................................................................................................10
4.4 Pressure Reducing Valve...............................................................................................11
4.5 High wind or cyclonic areas............................................................................................11
4.6 Piping material................................................................................................................11
4.7 Supplementary heat sources..........................................................................................11
4.8 Legionella requirements .................................................................................................12
4.9 Roof location selection ...................................................................................................12
5Dimensions and Technical Data .............................................................................................14
5.1 Collector Installation Area...............................................................................................14
5.2 Parts Kit Details ..............................................................................................................15
5.3 System Weights..............................................................................................................16
6Installation Instructions............................................................................................................17
6.1 Installing the collectors ...................................................................................................17
6.2 Flat roof installations.......................................................................................................19
6.3 Solar Flow and Return Lines ..........................................................................................19
7Connections at the Storage Tank............................................................................................21
7.1 Connections for the PM-600...........................................................................................21
7.2 Plumbing Connections....................................................................................................22
8Electrical Connections.............................................................................................................23
8.1 Electrical connection for Electric AES (Booster) ............................................................23
8.2 Electrical Installation for the PM-600..............................................................................24
8.3 Gas AES installation instructions....................................................................................26
9Commissioning & Customer Hand Over .................................................................................27
9.1 Commissioning...............................................................................................................27
9.2 Customer Hand Over......................................................................................................27
10 Warranty..................................................................................................................................28
11 Contact Details........................................................................................................................28

1 Customer Information
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1 CUSTOMER INFORMATION
1.1 Installing your new Conergy AS System
You are installing one of the most advanced solar water heaters in the world. This
manual provides you with the essential information needed to install the Conergy Active
System correctly. Please read it carefully and follow all the instructions. We hope you
find the following information useful.
1.2 Conergy quality
Before you can sell in Australia, or achieve any of the State or Federal Government
rebates, your product must comply with the rigorous Australian Standards for solar water
heaters. Our products comply with all these standards. The Federal Government Small-
scale Renewable Energy Scheme, called STCs, is an indication of solar efficiency. If you
compare any of the Conergy products with an equal competitor model, you will find that
Conergy systems often achieve more STCs than our competitors.
1.3 System Components
The Conergy AS Solar Water Heater is supplied in kit form so that it can be assembled
and connected in various configurations to suit the installation location and user
requirements.
Typically, the kit contains the five main components of your solar water heater system.
These are:
1. Potable Water Storage Tank;
2. Solar Controller Module;
3. Solar Collector (s);
4. Ancillary Energy Support (AES) System. Please note the AES system can be
either electric or gas operated dependent on the model purchased;
5. Parts Box, which includes pipes, fittings and mounting rails to interconnect and
mount the system.
1.3.1 Storage Tank
The potable water storage tank is used to store the heated water ready for household
use. It is constructed of high quality vitreous enamel lined low carbon steel to provide
long life. The tank is insulated with a high density polyurethane material to ensure
minimal heat losses and maximum structural strength.
1.3.2 Solar Collectors
The solar collector contains a multi-tube copper water way system, bonded to a solar
absorber plate. This combination collects solar energy and transfers it to the fluid within
the collector circuit. The absorber plate system is enclosed in an insulated metal casing
covered with a high strength toughened glass sheet that protects the absorber system
from physical damage.
1.3.3 Ancillary Energy Support (AES) - also known as booster systems
The AES is used to heat part of the stored water on those occasions when there is
reduced solar activity, for example on cloudy days. The two options for an AES are
electric boosting or gas boosting.

1 Customer Information
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The electric element within the storage tank is used for the electric AES. This element is
automatically controlled by an internal thermostat which only allows the electric element
to operate if the water temperature in the storage tank falls below 60 °C. Even then, it will
only consume electricity until the water temperature is increased to 60 °C. At this stage it
turns off automatically.
Figure 1.3.1 Electric AES Schematic
For gas AES systems, the electric element in the storage tank is not connected to an
electricity supply. Instead, a continuous flow gas water heater is fitted adjacent the
storage tank, in series with the hot water supply from the storage tank and the household
hot water pipe work. As the hot water from the solar storage tank passes through the gas
heater its temperature is automatically monitored. If the temperature is below 70 °C, the
gas heater will add the heat required to deliver hot water of at least 70 °C. If the water
temperature is above 70 °C, the gas heater will not ignite.
Figure 1.3.2: Gas AES Schematic

1 Customer Information
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1.4 Conergy model numbers explained
XX NNN / XX / X / XNN / X / XNNXX
System Type –Nom. Volume –Collector Area –Tank Type –Booster –Tank Material –Collector
Variable
Categories
System Type
AS
Active Systems (pumped)
HP
Heat Pump System Type
TS
Thermosiphon, TS
Nominal Volume
Nominal Storage Volume
Collector Area
20, 25, 40, 50, 60
Nominal Collector Area (m2x10)
Tank Type
O
Open Cir cuit
C
Closed Cir cuit
Booster
E
Electric
G
Gas
XX
Booster Rating (kWx10or Lpm)
Tank Material /
Designation
V
Vitreous Enamel
S
Stainless Steel
Collector Type
E20BC, E25BC or E20AA
Table 1.4.1 System Model Number
For example, AS315/40/0/E36/V/E20AA:
AS = Active System;
315 = 315 litre storage tank;
40 = 4 m² of collector area;
E36 = an electric AES with 3.6 kW rating;
V = Vitreous enamel tank;
E20AA = 2 m² selective surface solar collector, model E20AA.
1.5 Is the system suitable for extremely cold climates?
The open circuit system is not suitable for frost prone or freeze areas. If you are in a frost
prone or freeze area you must install a closed circuit system.
Whilst frost valves may be used to protect from mild damage of frosts to collectors,
installing a frost valve will not guarantee against frost damage. Damaged sustained to
the system in the event of freezing is not covered under warranty. Only closed circuit AS
models are warranted against freezing. See separate instructions and guidance on these
models.

1 Customer Information
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If the unit is to be fitted in areas prone to frost and freezing the unit must be installed in
accordance with any relevant sustainability programme (such as the Sustainability
Victoria program).
A breach of this requirement may void the warranty in the event of damage caused
by leaking due to frost or freezing.
1.6 Important safety information
All water heaters have the ability to produce hot water very quickly. To reduce the risk of
scald injury it is recommended that a temperature control valve be fitted to the hot water
supply pipe work. This valve should be checked every 6 months to ensure its operation
and settings remain correct.
Check that the pressure & temperature relief valve drain pipe is not located where it can
cause damage if hot water is discharged.
This water heater is not intended for use by young children, infirm persons, or
persons lacking relevant skill or experience, without suitable supervision.
Children should be supervised to ensure they do not play with hot water taps or the
water heater.
1.7 If the customer is away for a long period of time
If the system is not to be used for a period of a week or more during the summer months
it is advisable to turn off the electricity supply to the booster and if practical, cover the
solar collectors. If the solar collectors are not covered there is a possibility that the high
temperature valve in the storage tank may open and disperse small amounts of hot water
for a short period to reduce the storage tank temperature while you are away. This is a
normal function and does not harm the system.
1.8 Water discharge through the pressure valve
All Conergy solar water heaters have two pressure valves located within the system
configuration. The cold water expansion control valve (ECV), located in the cold water
supply pipe, may release a small amount of water from time to time during the heating
cycle of the system. The water discharge is water expanding due to the heating process.
Normally the discharge will be less than 10 litres per day. The pressure & temperature
valve, located on the storage tank, may also release a small expansion discharge.
1.9 Hydrogen gas can accumulate!
If the hot water system is not used for two weeks or more, a quantity of highly flammable
hydrogen gas may accumulate in the water heater. To dissipate this gas safely, it is
recommended that a hot tap be turned on for several minutes at a sink, basin or bath. Do
not use 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 an unusual noise as with air
escaping. Do not place hands or any part of your body beneath the tap during this
procedure.

2 Troubleshooting
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2 TROUBLESHOOTING
If there is not enough hot water we recommend that the following points are considered
as part of the service call. The most obvious reasons for a lack of hot water could be one
of the following.
2.1 Low solar energy input
If there have been prolonged periods of cloud or winter is approaching, it may be
necessary to reconsider the permitted boosting time for time-clock controlled systems or
to turn on the booster for systems with a booster isolation switch.
2.2 Solar collector shading
Often trees or other buildings can shade the solar collectors or there can be a dirt build-
up on the glass cover. Trees should be cut back if possible or the system relocated if
removal of the shading is not possible in the present location. If the glass is dirty this
should be cleaned with standard domestic glass cleaner. If rainwater collection occurs
from the same roof on which the solar water heater is located, do not use chemical
cleaning agents to clean the collectors. Any spillage of these onto the roof could cause
contamination of water in the rainwater tank.
2.3 AES (Booster) system not operating
For electric systems the fuse or circuit breaker supplying the AES System should be
checked. If the time clock (where fitted) and the fuse or circuit breaker are operational
and the water is cold, you can turn the booster isolator on and off to see if the electricity
meter speed changes. If there is no change in speed, it indicates there may be a booster
problem. Contact your authorised Conergy dealer or installation service provider as soon
as possible.
For gas systems the gas and electric supplies to the gas heater should be checked to
ensure they are both on. If water temperature from the gas heater is below 70 °C and
both supplies are on and the gas heater does not ignite there may be a problem. Contact
your authorised Conergy dealer or installation service provider as soon as possible.
2.4 Excessive water discharge from the valves
It is normal for the Expansion Control Valve (ECV) to drip water when heating. If there is
a discharge of more than 10 litres per day from any of the systems valves, it indicates
there may be a problem with the valve or an increased water supply pressure. Contact
your authorised Conergy dealer or installation service provider as soon as possible.
2.5 Hot water use higher than anticipated
Often the hot water usage of showers, washing machines and dishwashers is
underestimated by the customer. Review these appliances to determine if the daily
usage is greater than the storage volume of the water heater. Depending on the model
and conditions, our AS system tanks contain 250 to 400 litres of hot water therefore if the
hot water load is greater than the system capacity within a short period of time, there may
be periods where the water temperature is lower than normal. It is also advisable to
inspect hot water tap washers etc. for leakage and replace if necessary.

2 Troubleshooting
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2.6 Water discharge from the frost valve
If your system has a frost valve fitted it will be located at the bottom corner of the
collector. In temperatures that cause frost or freezing the valve will open and some water
will discharge from this valve. There is nothing that needs to be done to the valve or the
system, it is operating correctly. The water will stop discharging once the valve has
warmed enough to close again, usually as the frost clears.
Refer to section 1.5 on page 4 for more information on frost protection.

3 System Maintenance
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3 SYSTEM MAINTENANCE
The Conergy solar water heater is designed so that there is little to do in the way of
system maintenance.
Personally inspecting or servicing any part of the system is not recommended.
Should you decide that you want to inspect the roof mounted collectors, it is essential that
you use all safety devices required to ensure your personal safety. Most importantly the
electricity supply must be turned OFF.
3.1 Draining and flushing the system
The system must be completely drained of water before any plumbing work is
commenced. This will prevent damage to the storage tank in the event of a vacuum or
excessive pressure forming at the storage tank.
The Conergy AS hot water system should be drained and flushed every five years during
a major service of the unit.
1. Turn off and isolate the power supply to the electrical element.
2. Turn off the water supply to the water heater.
3. Release excess pressure from the tank by manually opening the pressure &
temperature relief valve.
4. Disconnect the cold water supply pipe connection to the tank.
5. Fit a ½” flexible drain pipe to the cold connection at the tank. Place the open end
of the drain hose in a location where it is safe for the hot water to drain away from
the tank.
6. Manually open the pressure & temperature relief valve which will allow air into the
tank and the water within the tank will flow out via the flexible drain pipe fitted to
the cold inlet connection. Hold the valve open until the tank is empty.
7. To drain the collectors, disconnect the cold pipe from the bottom of the
colle ct or array.
3.2 Collector glass cleaning
Glass cleaning usually occurs by natural rainfall, however if the installation is in an
industrial (or similar) area with high levels of airborne particles then a qualified person can
clean the collector glass with normal window cleaning chemicals and equipment. If
rainwater collection occurs from the same roof on which the solar water heater is located,
do not use chemical cleaning agents to clean the collectors. Any spillage of these onto
the roof could cause contamination of water in the rainwater tank.
3.3 Hail damage or broken collector glass
In the unusual case that the toughened glass collector covers are broken, Conergy does
not advise replacement of the glass. The entire panel should be replaced to maintain the
performance and integrity of the water heater. Replacement panels should be installed
by a qualified person.

3 System Maintenance
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3.4 Relief valves
The lever on the relief valves should be operated at least every six months. Failure to do
so may result in failure of the tank. If water does not discharge freely from the valves
they should be checked and possibly replaced. The relief valves and relief valve drain
lines must not be blocked. Some water may discharge during each heating cycle
Every five year’s all safety valves should be replaced to ensure continued life and
operational safety of the system. In locations where the potable water has a Total
Dissolved Solids (TDS) of greater than 600 ppm it is recommended to replace all safety
valves every 3 years.

4 Important Installation Information
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4 IMPORTANT INSTALLATION INFORMATION
4.1 Local Standards
The following standards and regulations must be taken into account when planning the
installation of the Conergy AS solar water heater system.
AS/NZS 3500.4.2 National plumbing and drainage code hot water supply
systems –acceptable solutions.
HB 263-2004 heated water systems plumbing industry commission.
AS/NZS 3000 Electrical installations (known as the Australian/New Zealand
wiring rules).
Any local regulations that govern this type of installation.
Where these instructions and any local regulations are in conflict, the local regulations
shall prevail.
4.2 Safety
Do not commence any aspect of this installation until you have satisfied yourself that all
safety issues have been addressed.
This installation should only be performed by an approved professional with
suitable experience and licenses, authorised by Conergy to conduct the work.
It is imperative that installers adhere to Occupational Health and Safety Guidelines at all
times. The installer is responsible for their safety and the safety of those around them.
4.3 Water Quality
Water supply from an unfiltered water source that may be highly conductive or have a
high mineral content may void the system warranty.
Therefore, to ensure water quality guidelines are met, the following characteristics should
not be exceeded.
Water Properties
Acceptable Levels
Total hardness
200 mg/litre or ppm
Total Dissolved Solids (TDS)
600 mg/litre or ppm
Chloride
250 mg/litre or ppm
Magnesium
10 mg/litre or ppm
Sodium
150 mg/litre or ppm
pH
Min 6.5 to Max 8.5
Electrical conductivity
850 μS/cm
Table 4.3.1 Water quality requirements
In areas of poor water quality, it is recommended that a softener, conditioner or similar
device be fitted to the water supply.
A breach of this condition may void the warranty in the event of damage caused by
water quality exceeding these characteristics.

4 Important Installation Information
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4.4 Pressure Reducing Valve
Where the mains water supply pressure is likely to exceed 550 kPa at any time, a 500kPa
pressure reducing valve that complies with AS1357 must be fitted to the inlet of the hot
water system.
This is essential to safeguard the appliance and ensure correct operation.
A breach of this requirement may void the warranty in the event of damage caused
by excessive pressure.
4.5 High wind or cyclonic areas
The standard mounting system is sufficient for mounting most standard roof installations
of either metal or tile roof construction. It may be necessary to use the cyclone mounting
system if one of the following applies:
The collector must be installed 1m (recommended) to 0.5m (minimum) of a roof
edge or peak.
The installation has minimal shielding from surrounding buildings and trees, or is
located on a hill or similar locations that may cause high wind effects (refer to
Terrain Categories, Topographic Effects & Shielding Factors in AS 1170.2: 2002,
or consult a structural engineer).
The installation is on a roof with a pitch greater than 30°.
If the solar water heater is installed in an area classed as Cyclone Region C or D
according to AS 1170.2: 2002, the standard mounting systems must not be used.
Please consult a structural engineer for advice on ensuring the installation will
comply with local building codes and regulations.
4.6 Piping material
Conergy recommends the use of copper pipe, certified to AS1432 Class C, for use in the
flow and return lines to the solar water system.
Plastic piping is not to be used for any portion of the water heater system plumbing
unless the pipe manufacturer has rated it for temperatures up to 99°C and a minimum
water pressure of 600kPa at these temperatures.
4.7 Supplementary heat sources
If a supplementary heat source is connected to the storage tank, the maximum energy
input cannot be more than 10 kW, including the electrical element. Where greater input is
required, a pressure and temperature relief valve with a higher kW rating is to be fitted to
the storage tank.
Where stove coils are used for supplementary heating the water must be connected in an
open vented manner. Refer to Australian Standard AS3500 for more details on
acceptable connection solutions.
Any supplementary heat source must be limited such that the maximum tank temperature
is 80 °C.

4 Important Installation Information
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4.8 Legionella requirements
The Australian Standards require that a water heater system provide a means to inhibit
the growth of the Legionella bacteria in potable water.
If the system is installed with an approved Gas AES, with the outlet temperature set to
70°C, then this requirement is satisfied.
If the system is installed with an Electric AES, then one of the following requirements
must be met:
1. At least 45% of the storage volume is heated to 60°C daily. This can be achieved
by leaving the AES permanently on.
2. At least 90% of the storage volume is heated to 60°C for 32 minutes in each 7
day period. This will require any timing device or manual control to be
adequately set-up or operated.
4.9 Roof location selection
There are six major factors to consider when selecting the solar collector installation
location:
4.9.1 Collector orientation
For optimum performance, the solar collectors need to face the equator (in southern
hemisphere this is north and in the northern hemisphere this is south). Installations
orientated at angles of up to 45° away from the equator do not have a major effect on the
annual solar output. Consequently, roof locations which face less than 45° away from the
equator are acceptable. If the collectors are installed with an east facing bias the best
solar input is achieved in the morning and if there is a west facing bias the best solar
input is in the afternoon.
Figure 4.9.1 Collector orientation

4 Important Installation Information
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4.9.2 Shading
Careful site inspection is required to ensure the selected location is not subjected to
shading from adjacent trees or buildings throughout the day, but particularly between 9am
and 3pm, the highest solar input times. Shadows are longer in winter than in summer so
a site that is free of shadows from adjacent objects in summer may have some shadows
in winter.
4.9.3 Storage tank location
The solar water heater should be located as close as possible to the location which uses
the most hot water e.g. the bathroom or kitchen. This is to reduce energy losses which
may occur if the pipe work between the solar water heater and the point of usage is too
long.
4.9.4 Collector inclination
To achieve optimum performance the solar water heater should be installed on a roof
pitch of greater than 10° and less than 30°. Installations on a roof where the roof pitch is
greater than 30° will require additional support at the storage tank to prevent it moving
downward during and after installation. If the roof pitch is less than 10°, the system will
require a mounting frame to increase the pitch above 10°. Air can accumulate in
installations below 10° and may not circulate effectively. Additionally the collector glass
will not self-clean during rainy periods.
4.9.5 Roof structure
Ensure the roofing material and roof structure is capable of supporting the full load of the
collectors and trades personnel during installation. The structure should be capable of
supporting a 250kg point load. If this is not the case, additional bracing must be installed
before proceeding with the installation.
The Conergy AS hot water system can be installed on metal or tile roofs.
4.9.6 Roof area
To ensure adequate working access for the installation and future maintenance, an area
of not less than 500mm should be left completely around the system.
The system should be located 1m from all roof edges and peaks, with a minimum
distance of 0.5m.
Sufficient distance must be allowed up the roof from the storage tank for securing the
mounting straps.

5 Dimensions and Technical Data
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5 DIMENSIONS AND TECHNICAL DATA
5.1 Collector Installation Area
Figure 5.1.1 Collector Installation Area
Model Number
Dimensions (mm)
A
B
C
D
E
F
TS180/20/C///E20
2600
1370
1226
2000
1000
82
TS180/20/O///E20
2600
1370
1226
2000
1000
82
TS180/25/C///E25
2600
1370
1226
2000
1235
82
TS180/25/O///E25
2600
1370
1226
2000
1235
82
TS300/25/C///E25
2600
1370
2010
2000
1235
82
TS300/25/O///E25
2600
1370
2010
2000
1235
82
TS300/40/C///E20
2600
2238
2010
2000
1000
82
TS300/40/O///E20
2600
2238
2010
2000
1000
82
TS300/50/C///E25
2600
2645
2010
2000
1235
82
TS300/50/O///E25
2600
2645
2010
2000
1235
82
TS300/60/C///E20
2600
3260
2010
2000
1000
82
TS300/60/O///E20
2600
3260
2010
2000
1000
82
Table 5.1.1 System dimensions

5 Dimensions and Technical Data
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5.2 Parts Kit Details
Model Number
Tank
Collector
Connection Kit
Mounting Kit
TS180/20/C///E20
TS180/C/E24
E20BC
PK-2101
PK-1204
TS180/20/O///E20
TS180/O/E24
E20BC
PK-2100
PK-1204
TS180/25/C///E25
TS180/C/E24
E25BC
PK-2101
PK-1204
TS180/25/O///E25
TS180/O/E24
E25BC
PK-2100
PK-1204
TS300/25/C///E25
TS300/C/E24
E25BC
PK-2101
PK-1204
TS300/25/O///E25
TS300/O/E24
E25BC
PK-2100
PK-1204
TS300/40/C///E20
TS300/C/E24
E20BC
PK-2103
PK-1205
TS300/40/O///E20
TS300/O/E24
E20BC
PK-2102
PK-1205
TS300/50/C///E25
TS300/C/E24
E25BC
PK-2101
PK-1206
TS300/50/O///E25
TS300/O/E24
E25BC
PK-2100
PK-1206
TS300/60/C///E20
TS300/C/E24
E20BC
PK-2103
PK-2104
PK-1205
PK-1207
TS300/60/O///E20
TS300/O/E24
E20BC
PK-2102
PK2104
PK-1205
PK-1207
Table 5.2.1 Details of System Parts Kits
Before starting the installation, please check carefully to ensure all items are accounted
for.

5 Dimensions and Technical Data
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5.3 System Weights
Tank
Material
Weight –Empty
(kg)
Weight –Full
(kg)
TS180/C/E24/V
Vitreous Enamel Mild Steel
64
239
TS180/O/E24/V
Vitreous Enamel Mild Steel
54
229
TS300/C/E24/V
Vitreous Enamel Mild Steel
101
399
TS300/O/E24/V
Vitreous Enamel Mild Steel
87
385
TS300/O/E24/S
444 Stainless Steel
71
369
Table 5.3.1 TS Tank Weights
Collector
Weight –Empty (kg)
Weight –Full (kg)
E20BC
29.5
31.2
E25BC
36.0
38.0
E20AA
39.0
40.7
Table 5.3.2 Collector Weights

6 Installation Instructions
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6 INSTALLATION INSTRUCTIONS
Before commencing the installation of the solar water heater system, please ensure you
have familiarised yourself with the requirements of Section 4 Important Installation
Information.
Remove all packaging and protective coatings and dispose of them in an appropriate
manner. This includes the plastic core-strip from the back of the collector and the plugs
from the collector and storage tank connection pipes.
6.1 Installing the collectors
Figure 6.1.1 Collector Installation General Assembly
1. Mark a point for the bottom left corner of the collector installation. This point
should be at least 500 mm up from the roof edge and 500 mm to the side of any
obstruction or roof edge.
2. Place one end of the collector mounting rail (Error! Reference source not
found., ) adjacent the location marked in step 1, and laid horizontally across the
roof to the right.
3. Locate two roof trusses which are under the collector mounting rail (as near as
possible to the outer edges of the rail). Clip two collector straps (Detail E - item
16) to the collector mounting rail where the trusses pass under the mounting rail.
4. Adjust the mounting rail so that it is 15 –20 mm higher (up the roof) on the right
side, then screw fix the collector straps to the roof trusses using the pre-punched
holes.
5. Take the first solar collector and place it on the collector mounting rail, at the
leftmost end.
For a single collector installation, go directly to step 8.
6. Loosely fit the two collector connectors (Detail B, Item 3) to the two copper tube
spigots on the right side of collector.
7. Take the second collector and place it onto the right hand side of the collector
mounting rail. Now, slide collector toward the first collector until the two copper

6 Installation Instructions
Envirosun AS Installation Manual Rev1a PVNW.docx Page 18
tube spigots of that collector slide fully home into the collector connectors already
fitted to collector. Tighten the compression nuts of the collector connector fittings
(Detail B –item 3), taking care not to twist the copper tubes of the collector.
Make sure you use correctly sized spanners and that the centre nut is held
steady whilst the compressing nuts are tightened.
8. Move the collectors so that they are centrally
located on the collector mounting rail.
9. Screw fix the collector rail to the collector/s
using the screws supplied. (Detail E - item 19)
10. To fix the top of the collectors to the roof, take
the remaining mounting straps (Detail G, item
16) and place as centrally as possible at the
top of each of the collectors with the strap
fixing ends pointing up the roof.
11. Screw fix the collector straps to the collector
using the screws supplied. (Detail E - item 19)
12. Finally, screw fix the collector straps to the roof
rafters to complete the collector mounting.
13. Steps 14 to 19 relate only to the 3 Panel Array:
14. Loosely fit the two collector connectors (Detail
B, Item 3) to the two copper tube spigots on the
right side of the second collector.
15. Locate a roof truss which is under the third
panel extension rail (detail XX –itemXX), as
near as possible to the outer edge of the rail.
Clip one collector strap (Detail E - item 16) to
the extension rail where the truss will pass
under the extension rail.
16. Screw fix the extension rail to the two panel
collector rail that is already installed, using the
self-drilling screws supplied (Detail E - Item 19)
The extension rail is provided with grooves and
pilot holes for correct positioning.
17. Take the third collector and place it onto the
right hand side of the extension rail.
18. Slide the collector toward the second collector
until the two copper tube spigots of that
collector slide fully home into the collector
connectors.
19. Tighten the compression nuts of the collector
connector fittings (Detail B –item 3) taking care
not to twist the copper tubes of the collector.
Make sure you use correctly sized spanners
and that the centre nut is held steady whilst the
compressing nuts are tightened.
20. Slide a Compression Plug assembly (Detail D,
item 4) to the top left and bottom right corners
of the array. Tighten the assembly taking care
not to twist the copper tubes of the collector.
Make sure you use correctly sized spanners
and that the nut is held steady whilst the
compressing plug is tightened.
Figure 6.1.2 Detail A
Figure 6.1.3 Detail B
Figure 6.1.4 Detail C
Figure 6.1.5 Detail D

6 Installation Instructions
Envirosun AS Installation Manual Rev1a PVNW.docx Page 19
21. Assemble and install the Hot Connection Union
assembly (Detail A) as follows;
22. Take the temperature well (Detail A –item 10)
and slide it onto the copper spigot at the top
right of the collector array. Tighten the
assembly taking care not to twist the copper
tubes of the collector. Make sure you use
correctly sized spanners and that the nut is
held steady whilst the compressing plug is
tightened.
23. Wind five turns of thread tape onto the ½” BSP
thread of the Temperature Well
24. Insert the Temperature Well into the ½” BSP
socket end of the Hot Connection Union (Detail
A –item9) and tighten normally. Take care not
to over tighten.
25. Wind five turns of thread tape onto the ⅜” BSP
thread of the Air Bleed Valve.
26. Screw fit the Air Bleed Valve (Detail A –item 8)
into the top ⅜” BSP socket and tighten
27. Open the Air Bleed Valve by turning the knob
on top anti-clockwise 1 ½ turns from closed.
28. Slide the ¾” BSP Compression Union
Assembly (Detail D, item 4) to the bottom left
hand corner connection of the array. Tighten
the assembly taking care not to twist the copper
tubes of the collector. Make sure you use
correctly sized spanners and that the nut is
held steady whilst the compressing union is
tightened.
The collector array is now completed and ready for
connection to the water heater system.
6.2 Flat roof installations
For flat roof installations a special mounting frame is required. Once the frame is
mounted, follow the instructions as outlined above.
6.3 Solar Flow and Return Lines
To complete the solar collector array installation, 2 x ½” (15 mm) copper tubes with a
minimum of 15mm of insulation and 1 x 2 core cable (supplied with the pump module) is
to be run from the solar collector array to the storage tank location.
1. Connect one ½” insulated copper tube to the bottom left hand corner of the array
and run down to the ground mounted storage tank location. This tube is known
as the Collector Cold Connection.
2. Connect the second ½” insulated copper tube to the Hot Connection assembly at
the top right hand corner connection of the array and run down to the ground
Figure 6.1.6 Detail E
Figure 6.1.7 Detail F
Figure 6.1.8 Detail G