Operation and Maintenance Manual
OnyX Pride Recuperators February 2019
Frapol Sp. z o.o. reserves the right to introduce changes without any prior notice.
Page
25
5.8
Electric
heater.
The heater has double overheating protection, which means that power supply can be cut off, if there is a danger of
overheating. One of the protections can be deleted manually. During assembly, pay attention to the direction of air flow
through the heater, as it must comply with the marking on its housing. Failure to do so may result in overheating of the
heater, as the temperature limiter will not activate. Connect electrical wires via rubber chokes to the terminal strip of the
heater,
according to the wiring diagram supplied with the heater. Special attention must be paid to the correct connection
of the protective conductor. The heater must be connected by a qualified electrician,
in accordance with the technical
documentation and the applicable regulations. The electric installation of the heater must be carried out in such a way that
it can be disconnected from the mains supply, by means of contacts installed at least 3mm apart at each pole, via a circuit
breaker or a contactor. The connection of the electric heater to the mains must be confirmed by a report drawn up after
measuring the insulation of the supply cable and the electric shock protection. After switching off the heater, the automation
system must force the air supply fan to operate for a period of time that ensures the cooling of the heaters (for 3-5 minutes).
6.
Pre-start
testing
and
starting-up.
6.1
Testing.
General status:
•
Are the individual components of the recuperator properly and tightly assembled
?
•
Is the interior of the recuperator free from foreign objects
?
•
Are the flexible flanges for connecting ventilation ducts stretched too tightly, squeezed, or damaged
?
Air filters:
•
Are the filter cartridges fitted correctly and securely fastened in the guide rails
?
•
Does the filter class and type match the recuperator documentation provided
?
•
Is the filter cloth not torn
?
Fan:
•
Is the interior and the surrounding of the fan free from foreign objects
?
•
Does the rotor rotate freely after it has been activated manually
?
Fan motor:
•
Does the supply voltage correspond to the rated motor voltage
?
Water trap:
•
Is the water trap installed and connected to the sewage system
?
Counter-flow heat exchanger
•
Does the actuator close and open a bypass damper, according to the force signal sent from the control system,
and not the other way round
?
Drainage
to
the
sewage
system
Automatic drain trap
HL 133 K type
(standard accessory)
DN 32
