Rinnai Enduro SP200B User manual

Flat Plate Commercial Solar Pre-heat Systems
Operation & Installation Manual

Rinnai 2 DD FP Solar Pre Heat System OIM
This appliance must be installed in accordance with:
• Manufacturer’s Installation Instructions
• Current AS/NZS 3000, AS/NZS 3500 & AS/NZS 5601
• Plumbing Code of Australia (PCA)
• Local Regulations and Municipal Building Codes including local OH&S
requirements
The solar hot and cold pipes between the solar storage tank and the solar collector(s)
must be suited to the high water temperatures and pressures that may occur. Fittings
used to join these pipes must use metallic materials to achieve sealing. Plastic pipe
and fittings must not be used as they are not suitable for the high temperatures and
pressures that may occur.
Failure of plastic pipe and/or fittings can lead to the release of high temperature water
and cause severe flooding and water damage.
This appliance must be installed, maintained and removed by an Authorised Person.
For continued safety of this appliance it must be installed and maintained in accor-
dance with the manufacturer’s instructions.
Not suitable as a pool or spa heater
AS/NZS 2712
Lic No.1849
SAI Global
Congratulations on the purchase of your Rinnai Solar Hot Water System. We trust you will have many years of
comfort and enjoyment from your system.
IMPORTANT
BEFORE USING THIS APPLIANCE
Before proceeding with the operation or installation read this manual thoroughly and gain a full
understanding of the appliance, to ensure safe and correct use.

Rinnai 3 DD FP Solar Pre Heat System OIM
TABLE OF CONTENTS
Warnings and Important Information 4
Safety and Regulatory Information ........................................................................................................................................ 4
Scald Hazards ....................................................................................................................................................................... 5
Safety Devices ....................................................................................................................................................................... 6
Hydrogen Gas ........................................................................................................................................................................ 7
Water Temperature ................................................................................................................................................................ 7
Water Quality ......................................................................................................................................................................... 7
Draining and Filling the Water Heating System ..................................................................................................................... 7
Maintenance and Regular Care ............................................................................................................................................. 7
Servicing and Repair ............................................................................................................................................................. 7
Installation 8
Regulations and Occupation Health and Safety (OH&S) ..................................................................................................... 8
Location - General Information .............................................................................................................................................. 8
Hi Rise Kits in Conjunction with Split System Flat Roof Frames ........................................................................................... 8
Water Pipes and Supply ........................................................................................................................................................ 8
Hot Water Delivery Temperature ............................................................................................................................................ 9
Storage Cylinder Location ..................................................................................................................................................... 9
Valves and Fittings ................................................................................................................................................................. 9
Installation Procedure .......................................................................................................................................................... 10
Installation - Solar Collectors 12
Regulations and Occupation Health and Safety (OH&S) ................................................................................................... 12
Solar Collector Specications .............................................................................................................................................. 12
System Orientation and Inclination ...................................................................................................................................... 13
Pipe and Pump Sizing ......................................................................................................................................................... 13
Components ........................................................................................................................................................................ 14
Collector Mounting Rail Pre Assembly ................................................................................................................................. 15
Installation on a Pitched Tile Roof ....................................................................................................................................... 16
Installation on a Pitched Metal Roof .................................................................................................................................... 17
Installation on a Flat Roof Frame ......................................................................................................................................... 18
Collector Spacing Requirements ......................................................................................................................................... 19
Flow and Return Line Layout ............................................................................................................................................... 20
Collector Fitting Details ........................................................................................................................................................ 20
Storage Cylinders 22
Specications ....................................................................................................................................................................... 22
Components Supplied With Cylinders ................................................................................................................................. 22
Dimensions ......................................................................................................................................................................... 23
Pump and Controller 25
Components Supplied in Solar Controller Kits ..................................................................................................................... 25
Solar Controller .................................................................................................................................................................... 26
Gas Boosting 27
Solar Preheat with Manifold Pack ........................................................................................................................................ 27
Solar Preheat With Demand Duo ........................................................................................................................................ 28
Solar Preheat with Demand Duo and Warm Water Valve ................................................................................................... 29
Save a Service Call 30
Contacts 32

Rinnai 4 DD FP Solar Pre Heat System OIM
SAFETY AND REGULATORY INFORMATION
WARNING
DO NOT operate this system before reading the manufacturers instructions.
This appliance must be installed, commissioned and serviced by an authorised person in
accordance with all applicable local rules and regulations.
Access covers of water heating system components will expose 240V wiring and MUST be
removed by an authorised person.
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 in use of the appliance by a person responsible for their safety.
For continued safety of this appliance it must be installed, operated and maintained in accordance
with the manufacturer’s instructions.
Children should be supervised to ensure they DO NOT play with the appliance.
Any power leads from the water heater system components MUST BE plugged into an external
weatherproof electrical outlet. If the power supply cord of any water heating components is
damaged, it MUST BE replaced by an authorised person in order to avoid a hazard, using genuine
replacement parts available from Rinnai. Take care not to touch power plugs with wet hands.
Care should be taken not to touch the pipe work as it may be HOT! The pipes between the
solar collectors and storage cylinder MUST BE copper or alternative material pipes that may be
supplied by Rinnai. Plastic pipe is NOT suited to the water temperatures and pressures that may
occur in the system.
DO NOT place articles on or against this appliance.
DO NOT store chemicals or ammable materials near this appliance.
DO NOT operate with collectors or covers removed from this appliance.
DO NOT activate pump unless cylinder is full of water.
NEVER use a ammable spray such as hair spray, lacquer, paint, etc near this unit as this may
cause a re.
WARNING
NOTICE TO VICTORIAN CONSUMERS
This appliance must be installed by a person licensed with the Victorian Building Authority.
Only a licensed person will have insurance protecting their workmanship.
So make sure you use a licensed person to install this appliance and ask for your Compliance
Certicate. For Further information contact the Victorian Building Authority on 1300 815 127.
WARNINGS AND IMPORTANT INFORMATION

Rinnai 5 DD FP Solar Pre Heat System OIM
SCALD HAZARDS
HOT WATER CAN CAUSE SCALDS.
CHILDREN, DISABLED, ELDERLY AND THE INFIRM ARE AT THE HIGHEST RISK OF BEING SCALDED.
FEEL WATER TEMPERATURE BEFORE BATHING OR SHOWERING.
SCALDS FROM HOT WATER TAPS CAN RESULT IN SEVERE INJURIES TO YOUNG CHILDREN.
SCALDS OCCUR WHEN CHILDREN ARE EXPOSED DIRECTLY TO HOT WATER WHEN THEY ARE
PLACED INTO A BATH WHICH IS TOO HOT.
ALWAYS......
Test the temperature of the water with your elbow before placing your child in the bath, also carefully
feel water before bathing or showering yourself.
Supervise children whenever they are in the bathroom.
Make sure that the hot water tap is turned off tightly.
CONSIDER.....
Installing child proof tap covers or child resistant taps (both approaches will prevent a small hand being
able to turn on the tap).
Installing tempering valves or thermostatic mixing valves which reduce the hot water temperature
delivered to the taps. Your local plumbing authority may already require that these be tted. Contact
your installer or local plumbing authority if in doubt.
NEVER….
Leave a toddler in the care of another child. They may not understand the need to have the water
temperature set at a safe level.
WARNINGS AND IMPORTANT INFORMATION

Rinnai 6 DD FP Solar Pre Heat System OIM
SAFETY DEVICES
The water heating system is supplied with various safety devices including temperature sensors, overheat sensors
and switches and a Pressure & Temperature Relief (PTR) valve. These devices must not be tampered with or
removed. The water heating system must not be operated unless each of these devices is tted and is in working
order.
WARNING
DO NOT tamper with or remove safety devices.
DO NOT operate the water heater unless all safety devices are tted and in working order.
DO NOT block or seal the PTR Valve and drain pipe.
Pressure & Temperature Relief (PTR) Valve
This valve is located near the top of the water heater
and is essential for safe operation. It is normal for the
valve to release a small quantity of water through the
drain line during heating.
However, continuous leakage of water from the valve
and its drain line may indicate a problem with the water
heater. If it discharges more than a bucket of water
during a 24 hour period or discharges continuously
there may be another problem.
Tw is t c ap until w ater
flow s fr om d rain lin e
Lift leve r u ntil w a te r
flow s fr om d rain lin e
(Low e r lev er gently !)
If the valve dribbles continuously, try easing the valve gear for a few seconds as described above. This may
dislodge any foreign matter and alleviate the problem.
If the valve discharges at high ows, especially at night, it may be as a result of the water pressure exceeding the
design pressure of the water heater. Ask your installer to t a Pressure Limiting Valve (PLV).
WARNING
NEVER replace the PTR valve with one which has a higher pressure rating than is specied for
your water heater.
WARNING
NEVER block the outlet of the PTR valve or it’s drain line for any reason. The easing gear must
be operated at least every 6 months to remove lime deposits and verify that it is not blocked.
Failure to do this may result in the water heater failing.
If the valve does not discharge water when the easing gear lever is opened, or does not seal again
when the easing gear is closed, attendance by an authorised person must be arranged without
delay. The PTR valve is not serviceable.
Expansion Control Valve (ECV) - if tted
It is normal and desirable that this valve allows a small quantity of water to be discharged during the heating cycle.
If it discharges more than a bucket of water during a 24 hour period or discharges continuously there may be
another problem.
If the valve leaks continuously, try easing the valve gear for a few seconds. This may dislodge any foreign matter
and alleviate the problem. If this does not alleviate the problem contact Rinnai.
Operate the easing gear regularly to remove any lime deposits and to verify that it is not blocked.
WARNINGS AND IMPORTANT INFORMATION

Rinnai 7 DD FP Solar Pre Heat System OIM
HYDROGEN GAS
In the case of systems using a vitreous enamelled lined cylinder, if the hot water unit is not used for two weeks or
more, a quantity of hydrogen gas, which is highly ammable, may accumulate in the water heater. To dissipate this
safely, it is recommended that a non electrically operated hot tap be turned on for two minutes at a sink, basin, or
bath, but not a dishwasher or other appliance. During this procedure there must be no smoking, open ame or any
electrical appliance operating nearby. If hydrogen is discharged through the tap, it will probably make a sound like
air escaping.
WATER TEMPERATURE
The solar control unit and pump ensure water circulates between the solar collectors and storage cylinder until the
water at the base of the cylinder reaches approximately 65°C. Under these conditions water at the hot outlet may
exceed 85°C. During periods of low solar gain supplementary heating occurs as required.
IMPORTANT
To meet Australian regulatory requirements, supplementary heating must be operational.
WATER QUALITY
The water quality of most public supplies is suitable for the water heating system. The water quality from bore
wells is generally unsuitable for the water heating system. Refer to the separate ‘Warranty Terms and Conditions’
booklet for water quality parameters and how they affect the warranty conditions. If in doubt about the water quality,
have it checked against the parameters listed in the warranty conditions. The system is not suitable as a pool or
spa heater.
DRAINING AND FILLING THE WATER HEATING SYSTEM
Draining or lling normally occur only during installation or servicing and must be carried out by an authorised
person.
MAINTENANCE AND REGULAR CARE
Operate the easing gear of the PTR as described in the section ‘Safety Devices’ on page 6.
The overow tray (supplied by installer) and drain underneath the storage cylinder (if tted) should be periodically
checked to ensure there are no blockages.
SERVICING AND REPAIR
Our Servicing network personnel are fully trained and equipped to give the best service on your appliance. If your
appliance needs service, ring one of the service contact numbers on the back of this booklet.
It is recommended that the system be serviced at least every 5 years.
The pressure and temperature relief valve and expansion control valve must be checked for performance or
replaced by an authorised person at intervals not exceeding 5 years or more frequently in areas where the water
is classied as scaling water (refer to the supplied warranty booklet).
It is recommended that the sacricial anode tted to Glass Lined cylinders be inspected every 5 years or more
frequently in areas where there is a high incidence of water deposits. This does not apply to Stainless Steel
cylinders. Anodes suited to hard and soft water, are available from Rinnai.
If the electric conduit, power supply cord or plug to the water heater is damaged, they must be replaced by an
authorised person in order to avoid a hazard. The power supply cord and plug (if tted) must be replaced by a
genuine replacement part available from Rinnai.
WARNINGS AND IMPORTANT INFORMATION

Rinnai 8 DD FP Solar Pre Heat System OIM
REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S)
WARNING
Installation and commissioning must be performed by authorised persons.
Solar systems must be installed in accordance with these instructions and all regulatory
requirements which exist in your area including those in relation to manual lifting, working at
heights and on roofs. Applicable publications and regulations may include:
• AS/NZS 5601 Gas Installations
• AS/NZS 3500 National Plumbing and Drainage
• AS/NZS 3000 Wiring rules
• Building Codes of Australia (BCA)
• Local Occupational Health and Safety (OH&S) regulations
This appliance is not suitable for use as a domestic spa pool or swimming pool heater.
Solar collectors are heavy and bulky items and are usually positioned on the roofs of buildings.
Australian State and Territories have a principal Occupational Health and Safety (OH&S) Act
which contains requirements relating to the handling of large, bulky or awkward items and the
prevention of falls from elevated surfaces. Persons installing solar collectors must be aware of
their responsibilities and be adequately trained and qualied, in accordance with local OH&S
requirements.
LOCATION - GENERAL INFORMATION
All system components must be in an accessible location. The storage cylinder must be accessible without the use
of a ladder or scaffold. Sufcient clearances shall allow access to, and removal of, all serviceable parts. Ensure the
PTR valve, pump kit, drain lines and thermostat and elements for electric systems have sufcient clearances and
are accessible for service and removal. The information on any data plates must also be readable. In the case of
vitreous enamel lined cylinders, leave a clearance of the height of one storage cylinder above the cylinder being
installed so the sacricial anode can be inspected and replaced. This does not apply to stainless steel cylinders.
Select suitable areas of roof on which to install the solar collectors as close as practicable to the cylinder. For
tiled roofs, ensure that the area is even and without cracked or damaged tiles. Collectors should be positioned
for optimum solar benet. Refer to the section ‘Installation - Solar Collectors’ on page 12 for more information.
WARNING
NOT SUITABLE FOR USE IN CYCLONE AREAS.
HI RISE KITS IN CONJUNCTION WITH SPLIT SYSTEM FLAT ROOF FRAMES
For buildings higher than 10 metres additional collector mounting components must be used to secure the collector
to the rail/frame. See the section ‘Collector Mounting Rail Pre Assembly’ on page 15 for full details. For buildings
higher than 10 metres using a at roof frame, the mounting of the frame to the roof must be carried out in accordance
with the instructions “Installation Manual - Rinnai Commercial High Rise Kit”.
WATER PIPES AND SUPPLY
WARNING
The solar hot and solar cold pipes between the solar storage tank and the solar collectors
must be suited to the high water temperatures and pressures that may occur. As such, plastic
pipe must not be used. Components used to join pipes must use metallic materials to achieve
sealing.
Capillary silver solder is a suitable joining method.
All hot water pipework should be insulated with sealed polyethylene foamed or equivalent insulation to optimise
performance and energy efciency. Such insulation may also be mandatory under local regulations. Rinnai
recommend insulation to achieve an R value of 0.6 K.m2/W or higher depending on location. All external pipework
MUST be insulated to prevent frost damage.
INSTALLATION

Rinnai 9 DD FP Solar Pre Heat System OIM
With the exception of solar collector ow and return pipes, water pipe sizing should be performed in accordance
with AS/NZS 3500.
The maximum water pressures for the various systems are listed on page 22. Approved pressure limiting valves
may be required if the maximum rated water supply pressures are exceeded. For gas boosted systems to achieve
the rated ow through the outlet of the continuous ow water heater, the minimum water supply pressures must be
supplied. The systems will operate at lower pressures but the rated ow will not be achieved.
Water chemistry and impurity limits are detailed in the separate Warranty document. Most metropolitan water
supplies fall within these requirements. If you are unsure about water quality, contact your water authority. If sludge
or foreign matter is present in the water supply, a suitable lter should be incorporated in the water supply to the
storage cylinder.
HOT WATER DELIVERY TEMPERATURE
Local regulations and/or the requirements of AS/NZS 3500.4 must be considered regarding the temperature
limitations of hot water supplied to areas used primarily for personal hygiene. The temperature of water to these
areas is limited to 45°C for early childhood centres, primary and secondary schools and nursing homes or similar
facilities for young, aged, sick or people with disabilities and 50°C for all other buildings. To comply with these
requirements, a temperature limiting device, such as a thermostatic mixing or tempering valve, will be required on
all solar hot water systems as detailed below.
NOTE
It is the responsibility of the installer to comply with all local regulations. Hot Water delivery
temperature requirements may differ from those stated above
STORAGE CYLINDER LOCATION
The solar storage cylinders have an ingress protection rating of IPX4 making them suitable for internal or external
installation. Rinnai ‘external’ gas boosters are suitable for external installation only.
Storage cylinders must be installed in freestanding mode on a level and stable base. For external installations,
storage cylinders should be mounted on a concrete base at least 50mm thick or on well seasoned, evenly spread
hardwood slats with a thickness of at least 25mm. Where property damage can occur, storage cylinders should be
installed with an approved safe tray (overow tray).
Ensure the cylinder does not stand on wet surfaces.
VALVES AND FITTINGS
The following valves and ttings are supplied with your solar hot water system:
• A combined pressure and temperature (PTR) relief valve, capacity 10 kW. Relief valve pressure settings
vary with models. This valve is tted at the top of the storage cylinder. The PTR valve is a safety device and
it is mandatory that it is tted by the installer on all installations.
• Fittings as shown in the tables on pages 14 and 25.
The following valves & ttings are to be supplied by the installer:
• A cold water expansion control valve (ECV). An ECV must be tted in Western Australia and South Australia
to the cold water supply to the storage cylinder to comply with local regulations. An ECV is recommended in
all other geographical areas where the water supply has a tendency to cause scaling. This will reduce hot
water discharge from the Pressure and Temperature Relief (PTR) valve which minimises wear on this valve.
• A stop cock, non return valve and line strainer. Combination valves incorporating two or more of these
functions (such as ‘Trio’ valves) are suitable. These are tted to the cold water supply to the storage cylinder
by the installer.
• Cold water supply and hot water discharge pipework to and from the storage cylinder.
• Solar collector ow and return pipes and storage cylinder connections.
• An isolating valve and connection union for the gas supply to the gas booster.
• An approved pressure limiting valve is required if the maximum rated water supply pressure in the table on
page 9 is exceeded.
INSTALLATION

Rinnai 10 DD FP Solar Pre Heat System OIM
INSTALLATION PROCEDURE
1. Install Solar Collectors
Position and install collectors in accordance with the section ‘Installation - Solar Collectors’ on page 12.
2. Position Storage Cylinders
Position storage cylinders on a level base.
3. Connect PTR Valves
Connect PTR valves in the location shown on the diagrams shown on pages 23 and 24.
a. Leave the valve body pointing down. Tighten the valve using the spanner ats - never use the valve body.
b. The PTR must be adequate for the load being applied to the storage cylinder. As any gas boosting is done
after the storage cylinders the only heat input to the tank is from the solar collectors. The potential solar
output for the solar collectors at PTR relief conditions is listed on page 12.
Example: if there are 3 SP200B solar collectors per tank, then the maximum input is 3 x 1.25 kW = 3.75
kW. This is less than the 10kW capacity of the supplied PTR valve and therefore is OK.
c. Use Teon tape on the valve. NEVER use hemp or other sealing materials. Ensure the tape does not
protrude past the end of the thread, which could result in it blocking the water passage from the valve.
4. Connect Flow and Return Pipework
Connect the ow and return pipework as shown in the diagrams on page 20, or using a suitable alternative
layout that ensures the ow and return piping is balanced.
5. Connect Pump and other Pipework
Connect the pump, pipework between collectors and cylinders, cold inlet, hot outlet and remaining pipework
and gas boosting choice as shown in the relevant diagram on pages 27 to 29, or other suitable layout.
Plug the single pump into the right hand GPO or if you have dual pumps then plug them both into the GPO’s
at the base of the controller. DO NOT plug the pump(s) into any other GPO.
6. Connect the Solar Controller
With power off, mount the controller per the instructions provided taking particular note of the correct mounting
orientation shown in the picture. DO NOT supply power to the solar controller until the system is lled with
water.
DO NOT install the controller on its side or back!
The controller MUST
be installed in an up-
right and vertical ori-
entation ONLY!
INSTALLATION

Rinnai 11 DD FP Solar Pre Heat System OIM
7. Connect Temperature Sensor Leads
Connect temperature sensor leads as shown on page 20 and 26. Ensure the leads are protected from
sunlight. The sensors must be sealed in place with thermoplastic putty or silicon.
It is important that these leads are installed as specied. Failure to do so will lead to malfunction or lack of
hot water.
8. Fill the System
Ensuring the power supply to the pump is off; turn on a hot water outlet tap(s). Remove the screw from the
pump to allow air to bleed out. Open the stop cock in the cold water mains supply line. The entire system will
ll with cold water. Once the pump is no longer bleeding air, replace the screw and continue to bleed the air
through the taps.
Turn off the hot tap at the sink when water ows freely without air bubbles or air bursts.
Air should be bled from the collectors by temporarily loosening a tting at the outlet of each collector array.
9. Adjust Pump Speed
Adjust the pump to the speed specied on page 13.
10. Check for Leaks
Check all connections for leakage and tighten if necessary. This is especially important for all ttings in
positions not easily accessed such as near the solar collectors. Operate the easing gear of both PTR and
ECV valve at the storage cylinders to ensure these valves are functional.
CAUTION
If leaks are detected the system must be drained and leaks repaired before the system is
relled. If this is necessary, cover the solar collectors with packaging cardboard or a tarp to
prevent them from heating which could result in steam or hot water being discharged from
ttings
11. Power up the Controller
Power up the controller, which should be factory set to the desired operating parameters, and observe for any
unlikely immediate errors. An error at this point usually refers to something that has been missed during the
installation procedure. Refer to the separate manual supplied with the controller for more details.
12. Finishing the Installation
Ensure that the set temperature on the gas boosting is set to 60°C or above for a Demand Duo or 70°C or
above for a Manifold Pack.
Ensure that the delivered temperature of the water to the building complies with all relevant regulations.
INSTALLATION

INSTALLATION - SOLAR COLLECTORS
Rinnai 12 DD FP Solar Pre Heat System OIM
REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S)
Installation and commissioning must be performed by authorised persons. Rinnai solar systems must be installed
in accordance with these Instructions and all regulatory requirements which exist in your area including those in
relation to manual lifting, working at heights and on roofs. Applicable publications and regulations may include:
• AS/NZS 5601 Gas Installations
• AS/NZS 3500 National Plumbing and Drainage
• AS/NZS 3000 Wiring rules
• Building Codes of Australia
• Local Occupational Health and Safety (OH&S) regulations
WARNING
Solar collectors are heavy and bulky items and are usually positioned on the roofs of buildings.
Each Australian State and Territory has a principal Occupational Health and Safety (OH&S) Act
which contains requirements relating to the handling of large, bulky or awkward items and the
prevention of falls from elevated surfaces. Persons installing solar collectors must be aware of
their responsibilities and be adequately trained and qualied, in accordance with local OH&S
requirements.
SOLAR COLLECTOR SPECIFICATIONS
Model ENDURO
SP200B
Type Flat plate
Waterways Copper
Absorber Aluminium
Selective Surface High Performance
Maximum Operating Pressure 1000 kPa
Casing Material Aluminium
Overall Dimensions
(L x W x H) (mm) 1960 x 1050 x 80
Weight empty (kg). 40
Water volume (litres) 1.95
Number risers 9
Potential Solar Output at
PTR relief conditions (kW) 1.25 kW
Frost Protection
The Rinnai solar hot water warranty booklet species the locations and
conditions that apply for at plate collectors to be warranted against frost
damage.
For full warranty terms, conditions and exclusions refer to the Rinnai solar
hot water warranty booklet. The booklet is available at www.rinnai.com.au.

INSTALLATION - SOLAR COLLECTORS
Rinnai 13 DD FP Solar Pre Heat System OIM
SYSTEM ORIENTATION AND INCLINATION
The performance of any solar hot water system is determined by the way that the system is installed.
For Australian installations, solar collectors should face the equator (True North) for optimum performance.
Installing solar collectors facing up to 45 degrees from North (between North-East and North-West will reduce
efciency by approximately 5%.
For Australian installations, the inclination of the solar collectors should be the same as the latitude of the site
for optimum performance. Inclinations within 20 degrees of the latitude of the site will reduce efciency by
approximately 5%. Many roofs in Australia have a slope between 20° and 25° and provide an appropriately angled
mounting surface.
Installers must ensure they comply with relevant local regulations in regards to inclination and orientation.
City Latitude City Latitude City Latitude
Adelaide 35°S Canberra 35°S Melbourne 38°S
Albany 35°S Darwin 12°S Perth 32°S
Alice Springs 24°S Dubbo 32°S Port Hedland 20°S
Brisbane 27°S Geraldton 28°S Rockhampton 24°S
Broken Hill 31°S Hobart 42°S Sydney 34°S
Cairns 17°S Mildura 34°S Townsville 19°S
Latitudes of Australian Cities
PIPE AND PUMP SIZING
NOTE
Ensure that the combined length of the ow and return piping for each collector set is approximately
the same. This will result in even ow to all collectors and optimise performance.
Total Collectors in array Up to 10 20 30 40 50 60 70 80 90 100
Piping sizing for solar
ow and return manifolds DN20 DN20 DN25 DN32 DN32 DN32 DN40 DN40 DN40 DN50
Pump 20-
60N
20-
60N
20-
60N
25-
80N
25-
80N
25-
80N
25-
80N
25-
80N
25-
80N
25-
80N
Maximum pipe run in collector circuit (m)
Pump Speed
1 30 - - - - - - - - -
2 60 40 20 - - - - - - -
3 100 100 100 100 100 100 100 100 100 100

INSTALLATION - SOLAR COLLECTORS
Rinnai 14 DD FP Solar Pre Heat System OIM
COMPONENTS
2 Collector
DDSP2B
3 Collector
DDSP3B
2 2
Mounting Rail 2100mm 14201211
- 2
Mounting Rail 1000mm 14201210
- 2
Joining Plate 15201035
8 12
Clamping Bracket 27201038
8 20
M6 Bolt, Washer & Nut Bolt 22601073
(Used with clamping Washer 17401073
brackets and joining plates) Nut 16801007
4 6
Sleeve Support 36201002
(Only required for some High Rise Installations)
2 Collector
DDSP2B
3 Collector
DDSP3B
4 4
Collector Mounting Straps 12401012
4 4
M8 Bolt, Washer and Nut Bolt 22601052
(Used to fasten collector Washer 17401072
mounting straps to rail) Nut 16801062
2 4
Barrel Union ¾ - ¾ 32201105
2 2
Cap 16001011
2 2
Union ¾ - ½ 32201736
2 4
Insulation and Foil Tape 14601217
For use with Barrel Unions
2 2
Insulation and Foil Tape 14601216
For use with caps

INSTALLATION - SOLAR COLLECTORS
Rinnai 15 DD FP Solar Pre Heat System OIM
COLLECTOR MOUNTING RAIL PRE ASSEMBLY
WARNING
This type of installation is not suitable for use in cyclonic areas.
• For a three collector installation join the 2.1 and 1.0 m rails using the joining plate and 4 of the M6 nut, bolt
and washers.
• Assemble the collector rail components as shown in the diagrams below.
• Loosely attach the clamping brackets using the M6 nuts, bolts and washers.
• If the collectors are to be mounted to a tiled roof, fasten the collector support straps (supplied with the
collectors) using the M8 nut, bolt and washers.
When installing on a roof above 10 metres in height, the short clamping brackets are not used, and must be
replaced with 900mm clamping brackets that are supplied in DDHRKIT2 and DDHRKIT3. The “Installation Manual
- Rinnai Commercial High Rise Kit” (15401104) that is provided in these kits must be followed as well as this
instruction.
If a at roof frame is used on an installation above 10 meters in height then the frame must be mounted to the roof
in accordance with the “High Rise Roof Mounting Frame Installation Instruction” (15401103).

INSTALLATION - SOLAR COLLECTORS
Rinnai 16 DD FP Solar Pre Heat System OIM
INSTALLATION ON A PITCHED TILE ROOF
WARNING
This type of installation is not suitable for use on roofs over 10 m high.
This type of installation is not suitable for use in cyclonic areas.
• Attach the collector mounting straps to the
rafter or truss under the tiles.
Nail strap to rafter
Tile removed
• Place the collector(s) onto the roof above the
lower rail. If more than one collector is being
installed then join them together using the
compression ttings supplied.
• Push down on the collector retainers to clamp
the collector and tighten the nuts.
• Position the upper collector rail above the
collectors. Push down on the retainers to clamp
the collector and tighten the nuts.
• Attach the collector mounting straps to the
rafter or truss under the tiles. Nail strap
to rafter
Tiles removed
• Replace the tiles and ensure the collector is
secure.

INSTALLATION - SOLAR COLLECTORS
Rinnai 17 DD FP Solar Pre Heat System OIM
INSTALLATION ON A PITCHED METAL ROOF
WARNING
This type of installation is not suitable for use on roofs over 10 m high.
This type of installation is not suitable for use in cyclonic areas.
• Position the lower collector mounting rail
assembly so that the rail is over the roof purlin.
• Drill through the roof iron and purlin using the
holes in the rail as a guide. Apply some silicone
sealant down the holes to ensure no water
leakage.
• Bolt the rail to the roof purlin using a suitable
fastener.
• Position the collector(s) onto the roof above
the lower rail. If more than one collector is
being installed, join them together using the
compression ttings supplied.
• Push down on the clamping brackets to allow
the locking teeth to hold the collector in position.
Tighten the nut and bolt to securely fasten the
clamping bracket in place.
• Place the upper collector mounting rail above
the collectors. Push down on the clamping
brackets to allow the locking teeth to hold the
collector in position. Tighten the nut and bolt to
securely fasten the clamping bracket in place.
• Drill through the roof iron and purlin using the
upper mounting rail as a guide. Apply some
silicone sealant down the holes to ensure
no water leakage and secure with suitable
fasteners.
• Alternatively the rail can be attached to the roof
using the collector mounting straps.

INSTALLATION - SOLAR COLLECTORS
Rinnai 18 DD FP Solar Pre Heat System OIM
INSTALLATION ON A FLAT ROOF FRAME
WARNING
Not suitable for use in cyclone areas
When installing on a roof over 10 metres in height, the frame must be fastened to the roof in
conjunction with the “High Rise Roof Mounting Frame Installation Instruction” (15401103) and
the longer clamping brackets supplied in DDHRKIT2 and DDHRKIT3 MUST be used.
• Assemble the frame as described in “Installation Manual - Roof Frames for Use with Rinnai Solar Hot Water
Systems”
• Fasten the mounting rails to the frame using the bolts, washers and lock nuts provided in the frame kit.
• Join the collectors using the compression unions and place the collectors onto the rail. Position second rail
above the collector and fasten to frame using bolts, washers and lock nuts.
• Push down on the clamping brackets to allow the locking teeth to hold the collector in position. Tighten the
nut and bolt to securely fasten the clamping bracket in place.

INSTALLATION - SOLAR COLLECTORS
Rinnai 19 DD FP Solar Pre Heat System OIM
COLLECTOR SPACING REQUIREMENTS
1050 90
2340
2190
3480
3330
1501050 90
1960
2215
Flat Roof Frame Footprint
Bank of 2 Collectors Bank of 3 Collectors

INSTALLATION - SOLAR COLLECTORS
Rinnai 20 DD FP Solar Pre Heat System OIM
FLOW AND RETURN LINE LAYOUT
To ensure that the system is operating at optimum efciency, it is important to ensure that the ow through all the
collector arrays is balanced. This can be achieved by using the ‘rst in last out’ approach to ensure equal length
ow and return lines for all collector arrays as shown below.
Alternatively balancing valves may be used on each collector array. This may simplify the pipework layout and
cost.
COLLECTOR FITTING DETAILS
Enduro SP200B
Cap
Hot Sensor Lead
Hot Sensor
Assembly
Hot Sensor Assembly and Lead
only on one set of collectors
Remainder have connection to
hot return pipework.
Cap
Union
Barrel Union
Barrel Union