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8

INSTALLATION

INSTALLATION

INSTALLATION AREA

Select the best possible orientation for the solar collectors (ide-

ally facing south). Avoid positions that are shaded by plants, 

trees, buildings or hills, etc. during the day.

In systems in which the summer load is predominant (produc-

tion of domestic hot water) aim the collector from east to west 

with a variable inclination from 20° to 60°. The ideal direction 

is southwards, with inclination equal to the latitude of the lo-

cation -10°. If the system sustains the greatest thermal load in 

the winter (as in systems that combine domestic hot water pro-

duction with central heating), install the collectors facing south 

(or south-east or south-west) at an angle greater than 35°. The 

ideal orientation is southwards, at an angle equal to the lati-

tude of the location plus 10°.

Remove all gravel and detritus from the surface on which the 

system is to be installed.

Do not use flat roof or sloping roof mounting frames to install 

any other equipment. They are designed only for use with 

R

 

solar water heating systems.

The installation of the solar field changes the pre-existing struc-

ture of the roof. It is necessary to check and possibly adapt all 

the roof elements to prevent any seepages or damages caused 

by wind and/or snow.

>1,5 m

>1,5 m

 

9

Collectors must be installed at a safety distance from active 

parts of electric lines and electric systems as required by the 

laws and regulations in force in the country of installation.

In the absence of specific rules, the minimum installation dis-

tance required minus the side movements of conductors due 

to the action of the wind and of the lowering in height due to 

thermal conditions is as follows:

H

Voltage range

H

< 1 kV

3

m

1 ÷ 30 kV

3,5

m

30 ÷ 132 kV

5

m

< 132 kV

7

m

 

9

Contact with open, live electrical wires may lead to electro-

cution and may even be fatal.

 

9

Non-electrical works near live unprotected electric ducts 

with which a contact is possible must be carried out in ac-

cordance with laws and regulations in force in the country 

of installation.

Summary of Contents for 20127137

Page 1: ...cod 20134586 rev 1 10 2017 RPS 25 4 EN INSTALLER TECHNICAL ASSISTANCE SERVICE AND USER MANUAL ...

Page 2: ...manual and that it con forms to all applicable laws and standards 9 9This product must only be used for the purpose for which it is designed and made as specified by R R declines all responsibility contractual or other for damage to prop erty or injury to persons or animals caused by improper in stallation adjustment maintenance or use 9 9All servicing and repairs must be performed by a qualified ...

Page 3: ...Assistance Service to request a service call under warranty 9 9Size the solar expansion tank so as to ensure complete ab sorption of the expansion of the fluid contained within the system with reference to the prevailing regulations on the matter In particular consider fluid characteristics consid erable fluctuation of service temperature and vapour that might be generated during solar collector s...

Page 4: ... 20127468 CODICE TIPO CP25TSS S N FABBRICATO IN ITALIA da Riello S p A 13000000 BAR CODE 128B Anno di produzione SERIALE PROGRESSIVO EN 12975 1 ISO 9806 Certif Serial N Model Codice Modello Matricola Codice Tipo Dimensioni Superficie lorda Superficie di apertura Superficie assorbitore Peso a vuoto Massima pressione di esercizio Contenuto liquido Massima concentrazione glicole Liquido termovettore ...

Page 5: ...IPTION RPS 25 4 Total area 2 301 m2 Exposed area 2 152 m2 Effective absorption area 2 140 m2 Water connections 2x 1 M 2x 1 F Ø Empty weight 44 0 kg Liquid content 1 7 l Recommended flow rate for each line per m2 of collector 30 l h x m2 Minimum flow rate for each line per m2 of collector 20 l h x m2 Maximum flow rate for each line per m2 of collector 200 l h x m2 Glass thickness 3 2 mm Thickness o...

Page 6: ...he surrounding air and with total solar radiation of 1000 W m2 referred to the exposed area Pressure drop in solar collectors PRESSURE DROP mbar 10 0 20 30 40 50 0 100 200 300 400 500 600 700 800 900 1000 15 10 5 0 0 50 100 150 200 250 300 350 400 FLOW RATE l h With antifreeze water mix of 33 3 66 7 and heat transfer medium temperature 20 C WIND AND SNOW LOADS ON COLLECTORS The maximum allowable l...

Page 7: ...tallation 8 HANDLING Separate the solar collector from the wooden pallet by removing the film wrapping Apply the data label provided in the document enve lope to the back of the solar collector Once you have removed the outer packaging proceed as follows to unpack and handle the solar collector Tilt the solar collector slightly and grip it at the four points shown A to lift it Use a hoist or other...

Page 8: ... or sloping roof mounting frames to install any other equipment They are designed only for use with R solar water heating systems The installation of the solar field changes the pre existing struc ture of the roof It is necessary to check and possibly adapt all the roof elements to prevent any seepages or damages caused by wind and or snow 1 5 m 1 5 m 9 9Collectors must be installed at a safety di...

Page 9: ...cannot be drilled use ballasts not supplied fairly distributed on all the bearing points as shown in the figure kg Wind speed km h Inclination angle of solar collectors Mass in kg distributed on the various bearing points to secure a collector from wind lifting 100 30 45 135 130 30 45 255 150 30 45 355 The indicated values are valid both for vertical and horizontal installation ...

Page 10: ...t When tightening a fitting HOLD THE OPPOSITE FITTING STEADY WITH A SECOND TOOL to avoid damage seal ring Plug captive nut captive nut seal ring seal ring Plug captive nut seal ring Union captive nut When tightening a fitting HOLD THE OPPOSITE FITTING STEADY WITH A SECOND TOOL to avoid damage sensor pocket toward the heat transfer circuit from the heat transfer circuit captive nut Ring nut seal ri...

Page 11: ...t exchange circuit towards the exchanger must be made on the side of probe socket T of the last collector of the series see figure Lines of solar collectors can be connected either in series pro vided each line contains no more than 6 collectors or in paral lel The complete circuit must always be hydraulically balanced See the following sample layouts Connection between collectors must be carried ...

Page 12: ...ccessory 17 Heat transfer fluid recovery M Collector outlet R Collector return 3 1 1 R M C M 4 4 4 9 8 11 17 10 13 14 2 6 12 Valve group 5 7 15 16 T 9 9If copper pipes are used joints must be hot brazed 9 9We recommend the use of stainless steel pipes specially made for solar collectors for the outlet return and probe pipes The probe cable should be of the shielded type 9 9Do not use plastic or mu...

Page 13: ...tem R M M T 14 DEVICE CLEANING AND MAINTENANCE 9 9The following operations must be exclusively performed by Technical Assistance Service It is recommended to clean the glass once a year as the deposit of dust and leaves reduces system efficiency The collector must be cleaned with water or water and soap Dry the collector at the end of cleaning operations 0 0Do not use abrasive products petrol or t...

Page 14: ...To clean the glass once a year as the deposit of dust and leaves reduces system efficiency To check the heat transfer fluid to verify its effectiveness every two years To check the integrity of solar collector insulations and any expansion joints every two years For cleaning operations and solar collector efficiency check contact the nearest Technical Assistance Service End user ...

Page 15: ...15 END USER END USER ...

Page 16: ...llo 7 37045 Legnago VR www riello com The manufacturer strives to continuously improve all products Appearance dimensions technical specifications standard equipment and accessories are therefore liable to modification without notice ...

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