Commissioning Instructions; Possible Fixing Points On A Sloping Roof - Ferroli ECOTOP VMF Instrucciones De Montaje

ECOTOP VMF/VMFA/VRF/VRFA

COMMISSIONING INSTRUCTIONS

Flushing and filling
For safety reasons, only carry out filling when the sun is not out or after covering the collectors.
Attention
Only use the foreseen antifreeze liquid (see list).
It may no longer be possible to completely empty collectors that are already filled. For this, in case of risk of frost,
the collectors must be filled with a water and antifreeze solution also for operation and pressure tests. Alternatively,
the pressure test can be done with compressed air and leak detection spray.
Operating pressure
The maximum operating pressure is 10 bar.
Air venting
The air must be vented:
• at the time of commissioning (after filling)
• 4 weeks after commissioning
• when necessary, e.g. in case of faults
Warning: Risk of scalding from steam or heat transfer fluid!
Operate the vent valve if the temperature of the heat transfer fluid is < 60°C. When emptying the system, the col-
lectors must be cold! Cover the collectors and, if possible, empty the system in the morning.
Heat transfer fluid check
Periodically (every 2 years) check the antifreeze properties and the pH value of the heat transfer fluid.
• Check the antifreeze with a tester and change or replenish it if necessary!
• Check the pH value with a measuring instrument (nominal value of pH 7.5 approx.): if it drops below the limit
value of pH 7, change the heat transfer fluid.
Collector maintenance
Once a year, visually check the collectors for any damage, dirt or leaks.
It is also advisable to do a check whenever the collectors undergo higher than normal stresses (e.g. strong wind
gusts, heavy loads due to snow, etc.).

POSSIBLE FIXING POINTS ON A SLOPING ROOF

Notes: Collectors installed on the roof with the assembly set keep the same angle of inclination as the
roof.
If installation is carried out carefully, the roof structure remains waterproof.
Attention: Some variations in sizes may be necessary, depending on the type of roof.
When high stresses on the structure are foreseen (e.g. heavy snowfall, wind gusts,
etc.) it is advisable to increase the fixing points, as given in the diagram of fig.1.
• •
= RECOMMENDED FIXING POINTS IN = RECOMMENDED FIXING POINTS IN
NORMAL LOAD CONDITIONS NORMAL LOAD CONDITIONS
Version VMF/VMFA
245
705 1200
245 705 1200
245 705 1200
245 705 1200
Version VRF/VRFA
X X
= RECOMMENDED FIXING POINTS IN = RECOMMENDED FIXING POINTS IN
HIGH LOAD CONDITIONS HIGH LOAD CONDITIONS
1200 1200
1200 1275
1200 1200
1200 1200
fig. 1
cod. 3541D350 - Rev. 03 - 11/2014
1200
1275
1200 1200
1200 1200
1200 1200 245
245
1200 1200
31
EN