7
TIP unit heaters
1.57
Unit heaters with 2-stage three-phase motor / Unit heaters with 1-stage single-phase motor
Installation and operating instructions
The installer of these units should have adequate knowledge of the
following gained from specialist vocational training:
safety and accident prevention regulations
guidelines and recognised technical regulations, i.e. Association of
German Electricians (VDE) regulations, DIN and EN standards.
Purpose and scope of these instructions
This manual contains information on the installation of the TIP for
operation. The information contained in this manual can be altered
without prior notification.
2.2 Limits of operation and use
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
substances 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
Sulphur 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 (Cl)
mg/l
< 100
CO
2
ppm
< 50
Sulphate ions (SO
4
2-
)
mg/l
< 50
Nitrite ions (NO
2
-
)
mg/l
< 50
Nitrate ions (NO
3
-
)
mg/l
< 50
Limits of operation
Min. water temperature
°C
5 – 120
Min./max. air intake temperature
°C
-20 to +40
Min./max. air humidity
%
15 – 75
Max. operating pressure
bar
16
Min./max. glycol percentage
%
25-50
Summary of Contents for TIP 54 Series
Page 27: ......
