Rinnai CCSE3302B-36 Installation Guide

Operation Installation Manual

Close Coupled

Solar Hot Water Systems -

Enduro SP200B and

Excelsior SP200BEX Collectors

This system shall be installed in accordance with:

•Manufacturer’s Installation Instructions

•Current AS/NZS 3500

•All applicable local rules and regulations including local OH&S requirements

This system must be installed, commissioned and serviced by an Authorised Person.

	The solar hot and solar cold pipes between the solar storage tank
	and the solar collector(s) must be copper tube. Fittings used to
	join these pipes must use metallic materials to acheive sealing.
	Plastic pipe and fittings must not be used as they are not suitable
IMPORTANT	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 can cause sever flooding and water damage.

Not suitable as a pool or spa heater.

All Rinnai gas products	W169
are A.G.A. certified.	SAI Global

Issue

3

AS/NZS 2712

Lic No.1849

SAI Global

TABLE OF CONTENTS

Warnings and Important Information

4

Safety and Regulatory Information  4 Scald Hazards  5 Operation Principle  6 Safety Devices  7 Excessive Discharge from Safety Devices  7 Gas Boosters  8 Hydrogen Gas  8 Water Temperature  8 Turning Off the Water Heating System  8 Turning On the Water Heating System  8 Water Quality  9 Draining and Filling the Water Heating System  9 Maintenance and Regular Care  9 Servicing and Repair  9

Save a Service Call	10
Specifications	12

General  12

Cylinder Weights  12

System Dimensions - Stainless Steel Cylinders  13

System Dimensions - Glass Lined Cylinders  14

Solar Collectors  15

Gas Boosters  16

Installation - All Systems

17

Regulations and Occupation Health and Safety (OH&S)  17 Location   17 Water Pipes, Fittings and Insulation  18 Water Supply  18 Hot Water Delivery Temperature  19 Valves and Fittings  19 System Orientation and Inclination  20 Roof Mounting Options  21 Standard Installation  24 Roof pitch greater than 30°  28 Framed Installations - Cyclone Frame  29 Framed Installations - Flat, Reverse and Side Pitch  29 Connecting Fittings to Collector  31

Rinnai

2

CC B OIM

TABLE OF CONTENTS

180 Litre SS Cylinder with 1 SP200B or SP200BEX Collector - BIKS180CCT01C  32 180 Litre SS Cylinder with 2 SP200B or SP200BEX Collectors - BIKSUNICCT23C  34 330 Litre SS Cylinder with 2 SP200B or SP200BEX Collectors - BIKS330CCT02C  36 330 Litre SS Cylinder with 3 SP200B or SP200BEX Collectors - BIKSUNICCT23C  38 200 Litre Glass Lined Cylinder with 1 SP200B or SP200BEX Collector - BIKV200CCT01C  40 200 Litre Glass Lined Cylinder with 2 SP200B or SP200BEX Collectors - BIKV200CCT02C  42 330 Litre Glass Lined Cylinder with 2 SP200B or SP200BEX Collectors - BIKV330CCT02C  44 330 Litre Glass Lined Cylinder with 3 SP200B or SP200BEX Collectors - BIKV330CCT03C  46

Installation - Gas Boosted Systems

48

Gas Booster Location  48

Gas Supply  48

Hot Water Delivery Temperature  48

SMARTSTART®  48

System Using Rinnai SmartStart  49

Gas Booster Clearances  50

Installation Procedure  51

Filling the System  52

Pre Solar Heating Checks  52

Solar Heating  53

Finishing the Installation  53

Draining Instructions  53

Installation - Electric Boosted Systems

54

Installation Procedure  54

Filling the System  55

Pre Solar Heating Checks  56

Solar Heating  56

Finishing the Installation  56

Draining Instructions  56

Installation Record	57
Notes	58

Rinnai

3

CC B OIM

WARNINGSARNINGS A D IMPORTANTAND IMPORTANTNFORMATION INFORMATION

SAFETY AND REGULATORY INFORMATION

	DO NOT operate this system before reading the manufacturers instructions.
WARNING	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 only 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 concerning 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 the 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 an equivalent metallic
	material specified 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 flammable materials near this appliance.
	DO NOT operate with collectors or covers removed from this appliance.
	NEVER use a flammable spray such as hair spray, lacquer, paint, etc near this unit as this may cause a
	fire.
	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 Certificate.

For Further information contact the Victorian Building Authority on 1300 815 127..

Rinnai

4

CC B OIM

WARNINGS AND IMPORTANT INFORMATION

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 temperatures delivered to the taps. Your local plumbing authority may already require that these be fitted. Contact our 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.

Rinnai

5

CC B OIM

WARNINGS AND IMPORTANT INFORMATION

OPERATION PRINCIPLE

Close coupled systems are designed to have the solar collectors on the roof and the storage cylinder above the collectors, all mounted using available mounting brackets. Electric and gas boosted models are available. The system comprises of a hot water storage cylinder and solar collectors. Close coupled solar systems use the thermosyphon principle to circulate the water through the collectors and then to the storage cylinder without the need for a pump.

Supplementary heating is provided if insufficient heat is available from sun (such as during cloudy or rainy weather or during winter months) either via an electric heating element located inside the storage cylinder or via a gas booster located external to the storage cylinder. The following diagrams illustrates the systems set up for electric and gas boosting.

		STORAGE CYLINDER		STORAGE CYLINDER
	COLD WATER		COLD WATER	HOT WATER
	SUPPLY	GAS BOOSTER	SUPPLY
				DELIVERY
	HOT WATER	GAS SUPPLY
	DELIVERY
	Stainless Steel Gas Boosted Solar Hot Water System		Stainless Steel Electric Solar Hot Water System
		STORAGE CYLINDER		STORAGE CYLINDER
		COLLECTORS		COLLECTORS
	COLD WATER		COLD WATER	HOT WATER
		GAS BOOSTER	SUPPLY	DELIVERY
	SUPPLY
	HOT WATER	GAS SUPPLY
	DELIVERY
	Glass Lined Gas Boosted Solar Hot Water System		Glass Lined Electric Solar Hot Water System
	Rinnai		6	CC B OIM

WARNINGS AND IMPORTANT INFORMATION

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 fitted and is in working order.

DO NOT tamper with or remove safety devices.

WARNING DO NOT operate the water heater unless all safety devices are fitted 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.

Tw ist cap until w ater flow s from drain line

Lift lever until w ater flow s from drain line (Low er lever gently!)

	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
WARNING	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.

EXCESSIVE DISCHARGE FROM SAFETY DEVICES Pressure & Temperature Relief (PTR) Valve

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 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 flows, 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 fit a Pressure Limiting Valve (PLV).

NEVER replace the PTR valve with one which has a higher pressure rating than is specified for

WARNING your water heater.

Expansion Control Valve (ECV) - if fitted

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.

Rinnai

7

CC B OIM

WARNINGS AND IMPORTANT INFORMATION

GAS BOOSTERS

•Do not touch the flue outlet or do not insert any objects into the flue outlet.

•Keep flammable materials, spray cans, fuel containers, trees, shrubs and pool chemicals etc, well clear of the flue outlet.

•Do not use the gas types other than those designated on the data plate. For example, do not use Propane/ Butane gas mixtures on appliances marked Propane Gas.

•Do not use Propane Gas on appliances marked as Natural Gas and vice versa.

HYDROGEN GAS

In the case of systems using a vitreous enamel lined cylinder, if the hot water unit is not used for two weeks or more, a quantity of hydrogen gas, which is highly flammable, 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 flame 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 water gets heated by the solar energy contributed from the sun and heats the water until the water at the base of the storage cylinder reaches approximately 65°C. At this time water at the hot outlet can be up to 88°C. Continued heating is prevented by the ‘No Load’ protection, a Thermo-arrestor (TA) valve that prevents water passing from the cylinder to the collectors. During periods of low solar gain, supplementary heating occurs.

To meet Australian regulatory requirements, supplementary heating must be operational.

IMPORTANT

TURNING OFF THE WATER HEATING SYSTEM

If you plan to be away for only a few nights, we suggest you leave the water heating system switched on. If it is necessary to switch off the water heater, do so as outlined below:

Electric Boosted Systems

•Switch off the electrical supply to the supplementary heating element. The switch is usually marked and located in the electricity meter box of the dwelling.

Gas Boosted systems

•Switch off the electric supply to the gas booster.

TURNING ON THE WATER HEATING SYSTEM

Electric Boosted system

•Switch on the electric supply to the supplementary heating element(s). The switch is usually marked and located in the electricity meter box of the dwelling.

Gas Boosted systems

•Switch on the electrical supply to the gas booster.

Rinnai

8

CC B OIM

WARNINGS AND IMPORTANT INFORMATION

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 document 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 document. The system is not suitable as a pool or spa heater.

DRAINING AND FILLING THE WATER HEATING SYSTEM

Draining or filling 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 7.

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 classified as scaling water (refer to the supplied warranty booklet).

It is recommended that the sacrificial anode fitted 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 fitted) must be replaced by a genuine replacement part available from Rinnai.

Rinnai

9

CC B OIM

SAVE A SERVICE CALL

Before contacting Rinnai for service, please follow the fault finding guide. If the problem persists or this information doesn’t answer your questions, contact Rinnai on the phone number on the back of this manual

Service call outs attending to any condition or fault that is not related to Rinnai product or components may be chargeable.

INSUFFICIENT OR NO HOT WATER

Excessive hot water		Electric Boosted Systems:
consumption		Often people are surprised at the amount of hot water used, especially when
		showering. If the amount of hot water used during the day exceeds the storage capacity
		of the cylinder, it is likely that there will be insufficient hot water.
		Gas Boosted Systems:
		Insufficient flow may occur if multiple outlets are in use at the same time and exceed
		the rated flow capacity of the gas booster. If so, reduce the number of outlets in use.
		Consider discussing with your installer, fitting water saving fixtures and/or flow control
		or pressure limiting valves to reduce consumption.
Incorrect solar system size		The system may not have been adequately sized to suit the household.
Temperature and pressure		PTR Valves & ECV Valves (if fitted)
relief valve / expansion		It is normal and desirable that these valves allows a small quantity of water to be
control valve discharging
		discharged during the heating cycle. If they discharges more than a standard bucket
water continuously
		of water during a 24 hour period or discharges continuously there may be another
		problem
		If water continuously dribbles from the valve, try easing the valve gear for a few
		seconds as described in the section ‘Maintenance and Regular Care’ on page 9.
		This may dislodge any foreign matter and alleviate the problem.
		If the valve discharges at high flows, contact your installer or Rinnai to discuss.
Booster heating not		Electric boosted Systems:
operating for electric		Check to ensure the electric isolating switch(es) at the switchboard (usually marked
systems
		“Hot water” or “water heater”) is switched ‘ON’.
		Check to ensure that the electric fuses for hot water at the switchboard are intact
		If running on Off-Peak, discuss boosting times with electricity supplier.
		Booster heating not operating or insufficient gas supply for gas boosted heating system
Gas booster not operating		Gas Boosted Systems:
or insufficient gas supply		Check to ensure the power cord of the gas booster is plugged in and switched ‘on’.
for gas boosted heating
system		Check gas is available and the isolation valve is opened
		Close the hot tap and wait for 10 seconds and open it again. The hot tap must be
		opened enough to ensure that the flow rate is sufficient for the gas booster to light.
		Check if there is gas supply to other appliances in the rest of the house
Booster thermostat settings		Electric Boosted Systems:
		Check the temperature of hot water delivered with a thermometer placed under the
		closest outlet (usually the kitchen sink) on a non-tempered hot water line
		This test should be done early in the morning after overnight electrical boosting before
		any hot water is used. The temperature of the water delivered should be at least 55°C
		(allowing for heat losses in pipe work)
		If this is not the case or the temperature may need to be increased. Contact your
		installer or Rinnai to discuss adjusting the thermostat.
NO WATER FROM THE HOT TAP
Restriction in the hot tap		Check for water flow at the other hot taps and that the cold water isolation valve is fully
or failure of the cold water		open
supply to the heater

Rinnai

10

CC B OIM

SAVE A SERVICE CALL

HIGH ELECTRICITY OR GAS BILL

Hot water usage patterns	Electric Boosted Systems:
	If using an off peak (overnight) boosted electrical system, the time of use of the water
	may affect whether heating is done by electric element or solar energy. This is because
	both solar heated water and electrically heated water are stored in the same cylinder.
	As the element is in the middle of the tank, half the tank can be heated each night by
	the booster element.
	If the bulk of hot water is used in the morning, there will be cold water in the cylinder for
	the sun to heat during the day leading to lower electricity usage.
	If the bulk of the hot water is used in the evening, the electric element will reheat the
	water overnight. In the morning there will only be half a cylinder of cold water for the
	sun to heat.
	Consider changing your usage pattern to optimise solar energy usage.
High electricity cost	Electric Boosted Systems:
	The electricity tariff will determine the running costs of the system. Contact the
	electricity supplier to confirm what these tariffs are.
Temperature and pressure	See entry under ‘Insufficient or No Hot Water’
relief valve / expansion
control valve discharging
water continuously
Lack of solar gain	Reduced sunlight due to overcast weather in summer or low solar contribution in winter
	will result in an increased dependence on electricity or gas boosting. Higher electricity
	or gas bills under these conditions, especially in winter, are normal.
	If the solar collectors are shaded by trees or other objects, or the glass is dirty, the
	effectiveness of the collectors is greatly reduced. Arrange for trimming of the trees or
	relocation of the solar collectors if the obstruction is permanent. Arrange for cleaning of
	the collector glass
	Solar collectors incorrectly positioned will also severely affect the solar gain. Check that
	positioning and alignment of solar collectors is in accordance with the section ‘System
	Orientation and Inclination’ on page 20.
CONDENSATION IN COLLECTORS
Condensation in solar	There is a small amount of ventilation between atmosphere and the internals of the
collectors	solar collector to ensure efficient operation. Under certain weather conditions, water
	vapour naturally present in the air may condense on the inside surface of the collector
	glass. This does not affect the performance of the system. If you are concerned contact
	Rinnai to discuss.
NOISY SOLAR COLLECTORS
Noise from solar collectors	Occasionally on days of high solar gain, the water temperature in the collector may
	become very high. The noise may be similar to a boiling kettle, or an expanding
	contracting metallic sound. The collector is designed to withstand these conditions, and
	no action is needed, unless it is extreme. Contact Rinnai to discuss if you have any
	concerns.
WATER HAMMER
Hot and cold water	Contact your installer or a plumber to discuss checking the clipping of hot and cold
plumbing in the premises	water pipe work and install a pressure limiting valve or water hammer arrestor as
	required

Rinnai

11

CC B OIM

SPECIFICATIONS

GENERAL

Close Coupled hot water systems are specified according to the cylinder capacity, number of solar collectors and boost type and capacity. Boost capacity for gas boosted system depends on the gas booster model selected. Boost capacity for electrically boosted systems depends on the power rating of the electric heating element.

Specifications for the various components are shown below.

	Solar flow and return connection:	Rp ¾
	PTR valve connection:	Rp ¾
	Cold inlet connection:	Rp ¾
	Hot outlet connection:	Rp ¾
	PTR valve setting	850 kPa
	Rating of PTR Valve supplied	10 kW
	Expansion Control Valve (ECV) setting	700 kPa
	(supplied by installer if required)
	Max supply pressure with ECV	500 kPa
	Max supply pressure without ECV	700 kPa
	Pressure limiting valve rating	500 kPa
	(supplied by installer if required)
		2.4 or 3.6 kW standard
	Electric element power rating	1.8 or 4.8 kW available for stainless steel cylinders
		4.8 kW available for glass lined cylinders

CYLINDER WEIGHTS

	Mass of Cylinder	Mass of Cylinder
	(empty)	(filled)
Stainless steel 180 litre	40 kg	225 kg
Stainless steel 330 litre	80 kg	412 kg
Glass lined 200 litre	77 kg	277 kg
Glass lined 330 litre	104 kg	434 kg

Rinnai

12

CC B OIM

SPECIFICATIONS

SYSTEM DIMENSIONS - STAINLESS STEEL CYLINDERS

1450	2470
	1200

2470

2090

2175

3600

2090

2175	3310
	600

610

1960

2580 *

*This dimension may vary slightly depending on the installed spacing between the cylinders and the collectors

Rinnai

13

CC B OIM

SPECIFICATIONS

SYSTEM DIMENSIONS - GLASS LINED CYLINDERS
1430	2470
1140	1140

1050	2175
2470	3610
1735	1735

2175

3310

685

695

1960

2610 *

* This dimension may vary slightly depending on the installed spacing between the cylinders and the collectors

Rinnai

14

CC B OIM

				SPECIFICATIONS
	SOLAR COLLECTORS
		ENDURO		EXCELSIOR
		SP200B		SP200BEX
	Type	Flat plate		Flat Plate
	Waterways	Copper		Copper
	Absorber	Aluminium		Copper
	Selective Surface	High Performance		Sputtered Titanium Oxide
	Maximum Operating Pressure	1000 kPa		1000 kPa
	Casing Material	Aluminium		Aluminium
	Overall Dimensions	1960 x 1050 x 80		1960 x 1050 x 80
	(L x W x H) (mm)
	Weight empty (kg)	40		40
	Water volume (litres)	1.95		2.0
	Number risers	9		10
	Potential Solar Output at	1.25 kW		1.25 kW
	PTR relief conditions (kW)
		The Rinnai solar hot water warranty booklet specifies the locations and
		conditions that apply for flat plate collectors to be warranted against frost
			damage.
		In locations where the warranty booklet specifies that frost valves must be
	Frost Protection	used, they must be fitted for warranty to apply. If frost valves are missing
		you must obtain them and fit them. Failure to fit frost valves will void any
		warranty against frost damage.
		For full warranty terms, conditions and exclusions refer to the Rinnai
		warranty booklet for solar hot water.
		This booklet is available at www.rinnai.com.au.

Rinnai

15

CC B OIM

SPECIFICATIONS

GAS BOOSTERS

Model Name	S20	S26		S26i *	S32	*
Boost capacity at 20°C rise (l/min)	20	26		32	37
Boost capacity at 25°C rise (l/min)	16	26		26	32
Maximum rated flow (l/min)	20	26		32	37
Minimum water supply pressure for maximum rated	120	200		140	180
flow (kPa) 1
Frost protection		Yes
Gas consumption maximum (MJ/h)	125	199		195	250
Gas consumption minimum (MJ/h)	14	14		16	21
Hot water delivery temperature (°C) 2		70
Dimensions - height x width x depth (mm)		530 x 350 x 194			600 x 470 x
					244
Weight (kg)	15	21		21	29

1 Units will operate at lower pressures but the rated flow will not be achieved.

2 Gas boosters for Solar hot water applications must be set by Rinnai to deliver a minimum temperature of 70°C. Solar Gas boosters will be marked as Solar. Units not marked ‘Solar’ MUST NOT be used, and will invalidate warranty. See warranty booklet for more details.

* These models are made to order.

Rinnai

16

CC B OIM

INSTALLATION - ALL SYSTEMS

REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S)

	Installation and commissioning must be performed by authorised persons.
WARNING	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 and cylinders 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 qualified, in accordance with local OH&S requirements.

LOCATION

System Location

These systems are only suitable for use on buildings up to 10 metres tall.

WARNING

Select suitable areas of roof on which to install the solar collectors and cylinder. It is essential that the roof structure is suitable for the solar collector/cylinder combination and can support the weight of these items when full of water. It is the installers responsibility to ensure the roof can safely support the system and to visually check the roof, and if there is any damage that requires attention (such as cracked tiles etc.), to inform the owner. If this affects the safe installation of any part of the system, installation should not proceed until the damage has been rectified. Collectors should be positioned for optimum solar benefit. Refer to the section ‘System Orientation and Inclination’ on page 20 for more information.

All system components must be in an accessible location. Sufficient clearances shall allow access to, and removal of, all serviceable parts. Ensure the PTR valve, drain lines, thermostats and elements have sufficient clearances and are accessible for service and removal. The information on any data plates must also be readable.

All electrically boosted solar hot water heating elements must be connected to an independent, fused, AC 240V 50 Hz power supply with an isolating switch installed at the switch board.

Gas Booster Location (where applicable)

The S20, S26 and S32 gas boosters are designed for outdoor installation only. As such, they must be located in an above ground open air situation with natural ventilation, without stagnant areas, where gas leakage & products of combustion are rapidly dispersed by wind and natural convection. If an internal model which has been converted to a solar gas booster follow information supplied with the unit for location, mounting and flueing requirements.

Rinnai

17

CC B OIM

INSTALLATION - ALL SYSTEMS

WATER PIPES, FITTINGS AND INSULATION

The solar hot and solar cold pipes between the solar storage tank and solar collector(s) must be

copper tube. Fittings used to join these pipes must use metallic materials to achieve sealing. Plastic IMPORTANT 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 can cause severe flooding and water damage.

All hot water pipework should be insulated with sealed polyethylene foamed or equivalent insulation to optimise performance and energy efficiency, and to protect against frost damage. Such insulation may also be mandatory under local regulations.

Rinnai recommend insulation to achieve at least the R value shown in the following table.

		Hot pipe between tank	Cold pipe between tank
		and collectors	and collectors.
	Location of Installation	and	(the side with the TA
		Pipe between tank and	valve)
		gas booster
•	CER Zone 4
• Areas defined as “B or “C” in the latest version		R = 0.6 K.m²/W	R = 0.6 K.m²/W
	of the Rinnai Solar Hot Water Warranty Booklet.
• Any other area prone to frost conditions.
•	All other areas	R = 0.6 K.m²/W	insulation not required

With the exception of solar collector flow and return pipes, water pipe sizing should be performed in accordance with AS/NZS 3500.

All supplied insulation materials must be fitted as shown to minimise heat losses. In frost prone areas this insulation will also protect against frost damage. If frost valves are fitted they must remain free of any insulation materials.

Frost valves must be exposed directly to ambient air conditions to ensure correct operation.

WATER SUPPLY

The maximum water pressures for the various systems are listed on page 12. Approved pressure limiting valves may be required if the ‘Maximum’ rated water supply pressures are exceeded. For gas boosted systems to achieve the rated flow through the outlet of the continuous flow water heater, the minimum water supply pressures must be supplied. The systems will operate at lower pressures but the rated flow will not be achieved.

Water chemistry and impurity limits are detailed in the separate warranty booklet. 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 filter should be incorporated in the water supply to the storage cylinder.

Rinnai

18

CC B OIM