DeDietrich NEO 2.1, Installation, User And Service Manual

Page: 40 / 44

To prevent damage to the collectors and their connections by frost
and corrosion, it is essential that a high quality heat transporting fluid
be used to fill the solar installation. If the recommended ready-mixed
fluid is used (Tyfocor L / LS) the system will be adequately protected
at temperatures down to approx. -24 °C.
To prevent any damage of the system,
pressure tests
should only
be carried out with the
heat-transporting fluid
used later on.
4
Testing pressure: 4 bar
4
Test time:
minimum 1 hour
4
Pressure gauge
39
Filling pump
61
Thermometer
84
Stop valve with lockable nonreturn valve
85
Primary solar circuit pump
87
Sealed safety valve calibrated at 6 bar
88
Solar expansion vessel
89
Heat transfer fluid container
112b
Domestic hot water sensor
114
Primary solar circuit filling and draining device
(
a
propylene glycol)
126
Solar regulator
130
Manual bleed degasser
131
Array of collectors
132
Solar station complete with DIEMASOL solar regulation
M001774-B
130
89 89
230V
50Hz
114
61
88
87
85
4
84
114
39
61 61
4. Installation NEO 2.1 / SUN 211
39 05/10/09 - 300020210-001-B