8
2.55
ProtecTor
A new dimension in door screening
Installation and operating manual
2. Safety instructions
Connection errors can result in damage to the unit! We are not lia-
ble for any damage caused by incorrect connection and/or improper
handling!
Only allow a qualified electrician to perform installation, assembly and main-
tenance work on electrical units in compliance with Association of German
Electricians VDE guidelines. The connection should comply with the appli-
cable VDE regulations and provisions laid down by the regional electricity
providers.
Non-compliance with the regulations and operating manual can result in
the units malfunctioning with consequential damage and danger to peo-
ple. There is a danger to life caused by wires being crossed due to incorrect
wiring!
Disconnect all parts of the system voltage-free from the mains
power supply and prevent them from being reconnected before
starting any connection and maintenance work!
Operating and application limits
Operating limits
Min./max. water temperature
°C
40 - 90
Min. / max. air intake temperature
°C
6 - 40
Min. / max. air humidity
%
15 - 75
Max. operating pressure of
the heat exchanger
copper/aluminium
bar
10
galvanised steel (cross-counterflow)
bar
16
Min./max. glycol content
%
25 - 50
We would refer to VDI-2035 Sheets 1 & 2, DIN EN 14336 and DIN EN 14868 with regard to
the properties of the medium used to protect the equipment. The following values provide
further guidance. The water used should be free of contamination, such as suspended particles
and reactive substances.
Water quality
pH value*
1
8 - 9
Conductivity*
1
μS/cm
< 700
Oxygen content (O
2
)
mg/l
< 0.1
Hardness
°dH
4 – 8.5
Sulfur ions (S)
not measurable
Sodium ions (Na
+
)
mg/l
< 100
Iron ions (Fe
2+
, Fe
3+
)
mg/l
< 0.1
Manganese ions (Mn
2+
)
mg/l
<0.05
Ammonia ions (NH
4+
)
mg/l
< 0.1
Chlorine ions (CI)
mg/l
< 100
CO
2
ppm
< 50
Sulfate ions (SO
4
2-
)
mg/l
< 50
Nitrite ions (NO
2
-
)
mg/l
< 50
Nitrate ions (NO
3
-
)
mg/l
< 50