SolarArk Solar Hot Water Systems Bedienungsanleitung

Solar Hot

Water

Systems

Installation Manual

Providing Insight into hot water, solar systems and various components used

within a SolarArk Solar Hot Water System. This is a con idential document or

SolarArk representative use only. This document is to be taken as a

comprehensive introduction into solar heating. This document is or the use

o SolarArk accredited installers only.

July 2012

Table of Contents

Introduction to Solar Water Heating ....................................................................................................................5

Key Features .........................................................................................................................................................6

Tempering Your Water Supply .............................................................................................................................7

Boosting Options ..................................................................................................................................................7

Gas Boosting .........................................................................................................................................................8

Water Flow ...........................................................................................................................................................9

Electric Boosting ...................................................................................................................................................9

Water Delivery & Recovery Rates ........................................................................................................................9

Local Standards .................................................................................................................................................. 10

SolarArk Accreditations ..................................................................................................................................... 10

SolarArk System Compliance ............................................................................................................................. 10

Authorised Installers .......................................................................................................................................... 11

Sa ety Precautions and Legionella ..................................................................................................................... 11

Pressure and Temperature Control and Relie .................................................................................................. 12

Water Quality .................................................................................................................................................... 12

Corrosion ........................................................................................................................................................... 13

Freeze protection and Snow Loading ................................................................................................................ 13

Hail Resistance ................................................................................................................................................... 13

Wind Stress ........................................................................................................................................................ 13

Lightning Protection .......................................................................................................................................... 14

Collector Dimensions & Weights ....................................................................................................................... 14

Roo Structural Integrity .................................................................................................................................... 14

Stagnation and Excess Heat ............................................................................................................................... 14

Water Boiling Point ............................................................................................................................................ 16

Automatic Air Eliminator ................................................................................................................................... 16

Piping Connection and Valves ........................................................................................................................... 16

Storage Tanks .................................................................................................................................................... 19

Galvanic Reaction .............................................................................................................................................. 19

Sa ety Reminders ............................................................................................................................................... 19

Tanks – Stainless Steel ....................................................................................................................................... 20

Tanks – Vitreous Enamel (Glass Lined) .............................................................................................................. 20

Sa ety Drip Tray ................................................................................................................................................. 21

Gas Boosted Storage Tank ................................................................................................................................. 21

Basic System schematic ..................................................................................................................................... 22

Collector Positioning .......................................................................................................................................... 23

Storage Tank Location ....................................................................................................................................... 24

Pipe Insulation ................................................................................................................................................... 24

Installation Procedure ....................................................................................................................................... 24

Mounting rame ................................................................................................................................................ 24

Mani old and Bottom Track Attachment .......................................................................................................... 25

Mani old and Bottom Track Attachment Process ............................................................................................. 25

Installation Planning .......................................................................................................................................... 26

Positioning Mani old ......................................................................................................................................... 26

Attachments to Roo Frame .............................................................................................................................. 26

Wind Loading ..................................................................................................................................................... 27

Snow Load ......................................................................................................................................................... 28

Tiled Roo Attachment....................................................................................................................................... 28

Colorbond/Zincalume/Galvanised Corrugated Roo ......................................................................................... 29

Asphalt Tiled Roo .............................................................................................................................................. 30

Flat Roo Installation (Adjustable Frame) .......................................................................................................... 30

Adjustable rame Front Track ............................................................................................................................ 30

Adjustable rame Round Feet Anchoring .......................................................................................................... 30

Adjusting Frame Angle ...................................................................................................................................... 31

Collector Plumbing ............................................................................................................................................ 31

System Filling and Air Purging ........................................................................................................................... 32

Draining Solar Collector ..................................................................................................................................... 33

Tempering Valve ................................................................................................................................................ 33

Flow Control Valve ............................................................................................................................................. 34

Automatic Air Eliminator ................................................................................................................................... 34

Circulating Pump ............................................................................................................................................... 35

Controller Function & operation ....................................................................................................................... 37

Controller Temperature Sensors ....................................................................................................................... 38

Pump and Controller Box .................................................................................................................................. 39

System Start Up ................................................................................................................................................. 39

Installation Re erence Guide ............................................................................................................................. 40

Troubleshooting ................................................................................................................................................ 41

Troubleshooting Guide ...................................................................................................................................... 42

Installation Instructions ..................................................................................................................................... 45

Flat Roo Frame Assembly Guide-30 Tube Collector ......................................................................................... 49

Standard Tubes Assembly Guide -30 Tube Collector ........................................................................................ 53

Flat Roo Frame Assembly Guide-10 and 20 Tube Collector ............................................................................. 55

Standard Tube Assembly Guide -10 and 20 Tube Collector .............................................................................. 58

Bill o Materials .................................................................................................................................................. 60

Glass Line Electric Boost ................................................................................................................................ 60

Glass Line Gas Boost ...................................................................................................................................... 61

Stainless Steel Electric Boost ......................................................................................................................... 62

Stainless Steel Gas Boost ............................................................................................................................... 63

Installation Checklist .......................................................................................................................................... 64

Installation Report Form.................................................................................................................................... 65

Customer Details ............................................................................................................................................... 65

Installer Details .................................................................................................................................................. 65

Distributor Details ............................................................................................................................................. 65

SolarArk Maintenance ....................................................................................................................................... 67

PTRV ................................................................................................................................................................... 67

Glass Breakage ................................................................................................................................................... 67

Replacement o Broken Tubes .......................................................................................................................... 67

Unpacking New Tubes ....................................................................................................................................... 67

Evacuated Tube Installation .............................................................................................................................. 69

Insulation Inspection ......................................................................................................................................... 69

Cleaning O Solar Collector ................................................................................................................................ 69

Other System Components ............................................................................................................................... 70

Precautions and Warnings ................................................................................................................................. 70

Warranty Warranty Conditions ......................................................................................................................... 71

Warranty Exclusions .......................................................................................................................................... 72

Component Warranty ........................................................................................................................................ 74

SolarArk Warranty Claim Procedure ................................................................................................................. 76

Disclaimer .......................................................................................................................................................... 77

SolarArk Frequently Asked Questions ............................................................................................................... 78

Thank you or your decision to purchase a SolarArk Evacuated Tube

Solar Hot Water System.

The content o this manual provides detailed in ormation on

maintenance, troubleshooting, sa ety precautions and warranty that

should be thoroughly read and adhered to ollowing installation.

Should you have any questions regarding the in ormation contained,

please contact SolarArk on Ph: 1300 760 966 or support.

Introduction to Solar Water Heating

The design o the cylindrical evacuated tubes allows maximum absorption o the sun’s energy to

convert it to heat.

The cold water rom the bottom o the storage tank is pumped up to the insulated mani old o the

solar collector, which passes through the heat exchanger. It absorbs the heat and is returned back

to the storage tank.

The controller measures the di erential temperature between the water supply rom the bottom o

the tank and the water return rom the collector to maintain the set temperature within the

storage tank.

The circulating pump operates intermittently throughout the day to maintain maximum hot water

output and minimise energy consumption.

Key Features

SolarArk utilizes copper, aluminium and titanium as part o a three target ilm technology.

This provides excellent heat retention that exceeds other standard tubes by more than 12%.

The diameter o the heat exchanger has been

speci ically designed to maintain low pressure drop.

High density Rockwool insulation is used to ensure

maximum solar heat gain by minimising the amount o

heat loss even in cold temperatures.

The solar controller will maintain the temperature at the bottom o the tank to a pre-set

temperature o 65°C to 70°C. The on/o di erential settings o the controller are designed

to ensure optimum pump cycling as the water in the mani old heats up. I the collector

reaches 8°C hotter than the tank the controller turns the circulating pump on, and o again

once the temperature decreases to 2°C.

SolarArk solar collector tubes and heat exchanger are individually tested or vacuum and

pressure to guarantee high quality and per ormance.

The tubes are designed to withstand hail and high winds, have long lasting per ormance and

are cheap and easy to replace i damaged.

The complete system is lightweight or easy installation and the stainless steel rame is

resilient to corrosion.

SolarArk are proud to provide a 15 year warranty on their complete solar collector.

Te pering Your Water Supply

Tempering valves are mandatory throughout Australia. They are to comply with local regulations as

a sa ety device to reduce hot water supply to a maximum o 50°C. AS/NZS 3500.4:2003 details the

requirements o the tempering valve.

The unction o the tempering valve is to reduce the 65-75 degree water leaving your hot water

storage tank and blending it with cold water to achieve 50°C .To reduce the possibility o scalding

the tempering valve must be installed to the hot water supply line incorporating all sanitary

household hot water outlets.

Only a solar rated tempering valve to be used with the SolarArk hot water system.

Tempering valve should be inspected and correctly adjusted every year, replaced every ive years.

All adjustments o a tempering valve should only be carried out by a licensed plumber.

Boosting Options

For further procedures please follow gas booster model instructions.

NOTE:

When using a direct low system in high mineral content water areas (hard water), scale may orm

in the solar loop reducing collector per ormance and increasing pressure drop that may also render

the system inoperable due to low restriction.

It is recommended in such areas a water treatment system be installed to remove scale orming

minerals or prevent scale layers rom orming.

Gas Boosted

During periods o low solar contribution, gas or electric boosting is required to maintain 60°

temperature.

Gas Boosting

The instantaneous gas booster is activated i the water passing through is less than 55°C. The gas

booster will automatically turn o when boosting is not required, there ore increases energy

e iciency.

The gas booster is designed or outdoor installation and can be mounted on the storage tank or on

the wall within a short distance o the storage tank. For indoor installation an indoor lued model

can be used. I wall mounting is used insure that the piping rom the storage tank to the gas booster

is as short as possible and well insulated without any exposed section.

Points to Note:

The gas booster operates when there is a minimum o low rate o 2.4 l/m o hot water

lowing through the booster. The use o water saving devices that have

less than 9lpm low rate or that have restrictors may inter ere with the

operation. To ensure operation, open the hot tap ully to check i the

gas booster comes on.

The S20 gas booster requires a minimum o 120 KPa water pressure

and the S26 requires a minimum o 160 KPa water pressure to achieve

the maximum low rate and optimal unction. I the pressure is less

than the required pressure, a water pressure pump should be installed.

Instantaneous gas booster electronic temperature controllers will not work with SolarArk

systems and are not to be used.

Water Flow

S21 or S26 hot water gas boosters have limited hot water low due to the low rate o the gas

booster (21 or 26 litres per minute).

To ensure that your instantaneous unit unctions e ectively, it is advisable to use a AAA rated

showerhead with a minimum low o 9 l/m. It is also recommended to periodically check

showerhead or any debris or deposit built-ups as this may a ect water low and temperature.

Model Na e

Model Nu ber

S20

S26

Factory Default Te p

°C

Colour

Dune

Water Pressure (kPa)

Min

120

160

Max

1000

Gas Rate LPG (Mj/hr)

Min

11.3

14.7

Max

125

188

Gas Rate NG (Mj/hr)

Min

10.9

13.8

Max

125

188

Flow Rate 25°C Rise (lp )

Min

Flow Rate Max (lp )

Max

Connection Sizes Gas/Hot/Cold

( )

20/20/20

Electric Boosting

An electric boosted water cylinder is supplied with a 3.6kW

electric boosting element as standard. The thermostat is set

to 60°C. I the solar contribution is low, the electric boosting

element will activate to compensate or heat loss.

Generally, the required heating time would occur overnight

during the o -peak Tari . I o -peak is not available, the

continuous Tari will require an automatic timer setting to

be activated early evening or overnight when solar radiation

is at its lowest. Depending on the water usage pattern the

timer can be operated manually to activate boosting as you need it to avoid running out o hot

water, however it may take 3-4 hours to heat your water.

Water Delivery & Recovery Rates

Delivery /

Recovery Rate

Gas Boosted Electric Boosted

250L - S21 315 – S21 315L – S26 S160L S250L S315L

Available Water

Delivery in First

Hour ( Litres)

873 936 1089 210 330 395

Hot Water

Recovery for 50⁰C

rise (litres)

609 609 762 80 80 80

Local Standards

Installation must be completed in accordance with the requirements o AS/NZS 3500.4

(AS/NZS3500.4.2 “National Plumbing and Drainage Code Hot Water Supply Systems – Acceptable

Solutions”), or in New Zealand, Clause G12 o the New Zealand Building Code, as well as any

relevant local standards and regulations.

SolarArk Accreditations

BSI Benchmark Certi ication is an Australian Company originally established in 1993 to provide

independent certi ication services to companies wishing to achieve ormal recognition o their

management systems. ISO 9001, QS-9000 and ISO 14001 and Product Certi ication.

Accreditation by JAS-ANZ also implies that companies approved by BSI Benchmark Certi ication is

recognised and accepted in each country where JAS-ANZ has signed a Memorandum o

Understanding with other National Accreditation Board.

The Institute or Thermodynamics and Thermal Engineering (ITW) has been working in thermal

solar energy since the early 1970s. In 1993 the Research and Testing Centre or Thermal Solar

Systems (TZS) was established. TZS is the largest testing centre or solar thermal components and

systems in Europe. TZS has long standing established experience in testing the ull spectrum o solar

thermal experience in testing the ull spectrum o solar thermal products as well as in conducting

research and development projects with partners rom research organisations and industry.

SolarArk Syste Co pliance

SolarArk solar hot water system approved to AS/NZS 2712:2007 Solar and Heat Pump Heaters

Design and Construction. The system is designed to allow stagnation when tank maximum

temperature is reach without dumping a large amount o water rom the TPRV.

All SolarArk evacuated tubes solar collectors are modelled to meet the ollowing standards and

requirements or thermal per ormance, energy consumption calculations, potable water

suitability.AS/NZS 2535, AS/NZS 4234:1994, AS/NZS 4020:2005.

All electric and gas storage water heaters are manu actured to Australian Standards AS 1056.1 and

AS 3142.

SolarArk solar collector has been tested to pass the rost tolerance to -15°C level 2 rost protection.

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