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Subject to changes in line with technical progress!
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Assembly
ATTENTION
If the unit version control has been selected, neither the valve nor the valve actuator are sup-
plied. In this case, these are on-site services.
NOTE
The figure shows schematics only of the hydraulic connection of the heater. The exact hydrau
-
lic connection must be carried out at the discretion of the heating specialist.
If the heat exchanger is the last component in front of the on-site duct, a duct-side inspection
opening must be provided directly on the register. This is used for inspection and cleaning.
Function
The heater is included in the control system for the room or supply air temperature. The heat output is metered by reg-
ulating the corresponding actuating valve.
ATTENTION
Measures for decommissioning:
At temperatures below freezing, the heat exchanger must be either drained and blown out
with compressed air, or filled with a commercially available antifreeze with corrosion inhibiting
additive due to the risk of freezing and corrosion.
5.8.2 Connection of heater/pumps-cold water air cooler (option)
A pump hot water heater (PWW) and pump cold water air cooler (PCW) can be provided for the additional heating and
cooling of the supply air.
To avoid condensate transfer into the duct, a droplet eliminator (TA) is installed behind the cooler. If the air speed is
sufficiently low, this DE can optionally be deselected.
The supply and return lines of both heat exchangers must be professionally connected.
NOTE
Do not mix up the feed and return lines when connecting the pipelines.
The medium inlet is located on the air outlet side (Fig. 47 Counterflow principle for heat ex
-
changer connection).
WARNING
Risk of explosion due to impermissible components and due to electrostatic charging.
If inadmissible components are used for the ATEX version, the unit can be electrostatically
charged. This can lead to an explosion.
The heat exchanger used must be suitable for the required ATEX marking.
The valves and actuators optionally supplied by AL-KO THERM may only be installed out-
side the ATEX zone. Otherwise, valves and actuators approved for the ATEX zone must
be used.
Measures must be taken by the operator to ensure that a sufficient safety distance between
media temperature (e.g.: medium of the heat exchanger) and the minimum ignition tem-
perature of the potentially present explosive mixture in accordance with DIN EN 1127-1.
Integrate the heat exchanger into the equipotential bonding of the unit.
Содержание AT4F Series
Страница 138: ...Translation of original operating instructions 138 AL KO AT4F ATEX Notes...
Страница 139: ......