Commissioning - Inspection; Commissioning; Operating Checks And Service Regulations; Service Regulations - Remak CAKE Installation And Operating Instructions Manual

Commissioning, Checks
Plate Heat Exchanger

Check the exchanger fins for damage.

Check the bypass damper functionality
Rotary Heat Exchanger
 Check the rotor for free rotation.
 Check the belt tension.

Check the sealing brushes for close fitting.

Check the ROV wiring.
 Check the direction of the rotor rotation
(refer to the data on the rating plate).
Fans
 Check the fan impeller for intactness and free rotation.

Check the fan impeller, inlet and outlet for cleanliness and fo-
reign objects (forgotten tools, loose connecting material, etc.).
Differential Pressure Sensor Settings
Obrázek 20
pressure loss, not the actual value.
Commissioning – Inspection

Commissioning

The air-handling unit may be commissioned only by a properly
qualified person. Prior to first start-up of the air-handling unit, an
inspection of the wiring of all connected components of the air-
-handling unit must be performed by a qualified technician. Until
the air-handling system is adjusted, the air-handling unit can only
be put into operation when the regulating damper in the air-han-
dling unit inlet is closed. Operating the air-handling unit while the
air-handling system is misadjusted can cause motor overloading
and permanent damage. If the second stage of filtering is included
in the air-handling unit, it is advisable to run the testing operation
with the second stage filter inserts removed.
Safety Measures

It is forbidden to start the fans of the air-handling unit if the
service doors are open or removed.

The hazard of trapping by moving parts is indicated by a
label situated on the service door of the air-handling unit.
 Service doors must always be closed during air-handling
unit operation.

Before starting any work on the fan block, the main switch
must always be turned off and secured to avoid accidental star-
ting of the motor during service work on the fan block.

When emptying the heat exchanger, the water temperature
must be below +60 °C.

Remove the transpa-
rent cover.
 Using the rotary
selector, set the required
end pressure loss of
the filter insert (see the
section "Regular Inspec-
tions").

Re-install the cover.
Note: The rotary selector
shows the required end
CAKE Air-handling units

The connecting piping of the heater must be insulated so its
surface temperature will not exceed +60 °C.
Checks during First Start-Up
During First Start-Up

Check the proper direction of the impeller rotation following
the direction of the arrow on the impeller (to carry out this
check use run-out of the switched off fan).

Check the proper direction of the rotary heat exchanger
rotor rotation following the direction of the arrow on the rotor
and free rotation without dragging.
 Check the input current of connected equipment (it must
not exceed the maximum permissible value stated on the ra-
ting plate).
 Check the condensate drainage for correct operation, i.e.,
the level of water in the siphon. If the water has been sucked
off, it will be necessary to increase the height of the siphon

Check the condition and position of the filters.
During the testing operation, it is necessary to check the air-
-handling unit for unusual noises and excessive vibrations. The
testing operation must last at least 30 minutes. If the unit vib-
rates too much, it is necessary to again check the fan assembly
and perform vibration intensity measuring, if necessary. If the
vibration intensity exceeds 2.8 mm/s, measured at the motor
bearing shield on the impeller side, the fan must be checked
and balanced by professional staff. During the testing opera-
tion, it is necessary to adjust (regulate) the entire air-handling
system. Before putting the air-handling unit into permanent
operation, it is recommended to replace or regenerate the filter
inserts. After the test operation has finished, the air-handling
unit must be inspected. Special attention must be paid to the
proper function of the condensate drainage.

Operating Checks and Service Regulations

Service Regulations

The user is responsible for the device operation. When putting the
air-handling device into permanent operation, we recommend the
supplier (installing company) in collaboration with the designer
to issue service regulations in accordance with applicable legal
regulations. We recommend including the following in these
service regulations:

Air-handling device assembly description, its intended use
and a description of its activities in all operating modes.
 Description of all safety and protective elements and their
functions
 Health protection principles, safety and operating rules to
be observed when operating the air-handling equipment.

Requirements for operating staff qualifications and training,
a nomenclature list of personnel authorized to operate the air-
-handling device.

Detailed emergency and accident instructions to be follo-
wed by the operating staff
 Operating particularities during different climatic conditions
(e.g. summer or winter operation).
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