20
1.43
Katherm HK
Ready-to-install trench heaters with EC tangential fan
Assembly and installation instructions
9. Condensation drainage
9.1. General information
A differentiation is made between tow fundamentally different designs
when operation the Katherm HK in cooling mode: dry cooling and wet
cooling, both in 2-pip and 4-pipe mode.
If the Katherm HK trench unit is used to cool room air, condensation can
be produced at certain cooling water temperatures, room temperatures
and room humidity levels. Katherm HK are fitted as standard with a
condensation tray for condensation drainage. The condensation is
collected by the tray underneath the heat exchanger and discharged and
forward to the drain opening for discharge.
The condensation tray is designed in such a way in accordance with
Hygiene Directive VDI 6022 that it can be fully removed to the room side
for complete cleaning.
It is crucial that the prescribed service intervals (see chapter 10 Service)
for the condensation tray and condensation pump (if necessary) are
maintained for correct operation.
Condensation can be drained away in the Katherm HK in two different
ways:
• condensation drainage with a natural gradient
• condensation drainage using the condensation pump kit
To ensure the drainage of condensation from the Katherm HK, the
gradient needs to be at least 2% (according to DIN EN 12056), without
restriction and without rising sections of pipe. Make sure that the
condensation drainage line is laid without kinks. Take into account all
applicable regulations, such as the use of a ball trap, when connecting the
condensation line to the sewer system. Protect the trap from drying out.
Consider the use of water vapour-impermeable insulation depending on
the pipe material used for the condensation drain. You will need to use a
condensation pump should a natural gradient be impossible on site (see
Section 8.3).
Maximum condensation produced per Katherm HK (at 100% fan speed, 2-pipe system)
Air intake
27°C / 48%
30°C / 70 %
Cooling water temperature
6/12°C
7/12°C
8/14°C
6/12°C
Katherm HK
Trench length:
[mm]
[l/h]
[l/h]
[l/h]
[l/h]
320/130
290/160
915 / 950
0.32
0.30
0.21
1.83
1200
0.50
0.47
0.32
3.01
1700
0.75
0.70
0.47
4.67
2000
0.95
0.88
0.59
6.03
2500
1.17
1.09
0.71
7.61
3000
1.49
1.38
0.89
9.98
Summary of Contents for Katherm HK Series
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