Klimor EVO - H, Руководство по эксплуатации и обслуживанию

Страница: 82 / 178

80
EVO-S, EVO-H
MODULAR AIR HANDLING UNITS
OPERATION AND MAINTENANCE MANUAL
Fig. 42 Installation of class F7/F9 bag and minipleat filter
4.3 EF electrostatic filters
EF electrostatic filters can be used as filter elements of high-
er cleaning class.
The efficiency and class of filtration depends on the speed
of air flowing through the filter window. Achievable filtra-
tion class according to Tab. 17.
Table 17 Active electrostatic filter classes depending on the air speed in the filter window
Air speed in filter window
cleaning efficiency according to EN-ISO 16890
ePM 1 ePM 2,5 ePM 10
1,4 95% 96% 96%
2 90% 91% 94%
2,4 85% 88% 92%
2,8 80% 83% 91%
3,1 75% 80% 89%
3,4 70% 75% 87%
Table 17a
Passive-acive electrostatic filter classes depending on the air speed in the filter window
Prędkość w oknie
efektywność oczyszczania wg ISO 16890
ePM 1 ePM 2,5 ePM 10
2,1 95% 98% 99%
2,6 90% 95% 97%
2,9 86% 92% 96%
3,2 81% 87% 93%
3,5 76% 82% 90%
3,7 71% 77% 88%
3,9 66% 72% 85%
4 63% 69% 83%
Electrostatic filters consist of two main components:
• filtration modules
• an electronic module that generates high voltage and
very low current.
Acceptable operating conditions for electrostatic filters:
• air flow temperature below 70°C
• relative air humidity between 15% and 98%
• size of retained particles 0.01÷50 microns (it is required
to install a pre-filter of min G4/ISO COARSE 60% class
before the electrostatic filter).
• no explosive substances in the filtered air
• no ingredients that cause aluminium corrosion
In electrostatic filters the inserts do not need to be repla-
ced but are to be cleaned. See the following pages for a
description of the steps.
EF filters require 230v/50Hz power supply for the generators.
If the automatic system is delivered with factory control sys-
tem, the power supply is independent from it.
4.3.1 Connecting active electrostatic filters
The electrostatic filters are powered by a DC generator with
an output voltage of 4000V and current capacity of 3.5mA
in an IP56 housing.
The filter anodes are powered by the electrode (+) (plus),
and the cathode is a filter housing powered by the (-) minus,
which should be connected as the unit ground.
Mount the grounding in the unit floor near the filter guides.
One generator can handle up to 8 filtering sections, i.e. one
1200 or two 600 filters.
The generator is powered with a single-phase voltage of
230V / 50Hz. The power required for one generator is 36W.
Generator dimensions: 310 x 230 x 125mm.