Rotary Regenerator; Master Switch; Preparation For Commissioning; Inspection Before First Start-Up - Remak CAKE Installation And Operating Instructions Manual

Commissioning Preparation and Commissioning
Settings are made in the device or in the control unit, depending
on the type of device. To increase sensing accuracy, a range of
the measured pressure is set in the device. The required setting
values are specified in the technical documentation delivered
with each device.

Rotary Regenerator

As standard, the rotary regenerator can be delivered with two
types of drives:
 A step motor controlled by the control unit
 An asynchronous motor 400V/50Hz controlled by the fre-
quency inverter
If the delivery includes a frequency inverter to control output
of the rotary regenerator, the electric connection (input) is 1 x
230V/50Hz (and output for the motor is 3 x 230V ∆).
Main Switch
Figure 19 – Main Switch
Rules for Separate Installation of M&C Elements
If the unit is delivered without the control unit, it is not equipped
with measuring and control elements.
The following rules are applied for the installation of these
elements:

If possible, install the sensors in the prepared holders.
 Run the cable routes so that it will not interfere with func-
tional parts of the unit and prevent removal of the components
(filters, fans, heat-exchangers and heat recovery). The route to
the connection point or installed cable inside the unit should be
as short and straight as possible.
 To run the cables through different sections of the unit's,
use the cable through with grommets.

The fans are designed as removable units and the motor
cable connection must allow the motor to be pulled out!

Secure the cable properly using the fixing points or cable
protectors and grommets to pass through the sheet metal
parts.
 For running the cables in and out of the unit, use the com-
mon grommet installed on the top casing of the unit.
 Use grommets of the proper diameter to run the cable
through and always run only one cable through each hole in the
grommet.

The precondition for unit operation is the installation of func-
tional antifreeze protection elements of the heat-exchangers,
plate or rotary heat exchangers, including active protection of
the unit when reaching the final pressure loss of filters
.
12
If the compact air-han-
dling unit includes the
integrated control unit, it
is equipped with the main
switch (the red handle in
the yellow field) on the
service side.
The compact air-handling
unit is situated on the
door of the sheet metal
switchboard box.

Preparation for Commissioning

Inspection before First Start-Up,

General Routines and Checks
The service panels are provided with hinges and external closu-
res which serve also as handles. One of the safety closures of
each door is always equipped with a lock to prevent access by
unauthorised persons.
When performing any check, the device must always be safely
disconnected from the power supply!
Mechanical connection
Before first start-up check the following mechanical parts:

Check alignment of the air-handling unit.

Check whether all components of the air-handling unit are
installed and connected to the air distributing ducting.
 Check whether all cooling and heating circuits are connec-
ted, and whether energy media are available.
 Check whether all condensate drainage kits are connected.

Check all the condensate drainage siphons for correct
setting (positive/negative pressure) and whether they are filled
with water.

Check the installation of all required vibration damping ele-
ments.
Electric Wiring
Check the following items (according to the project):
 Check whether all external electrical connections are made.

Check the proper wiring of all individual electrical compo-
nents of the air-handling unit.

Check whether all required external M&C components are
installed and connected.
 Check whether all internal connectors are interconnected
(applies for deliveries of disassembled units).
 Check the protection conductor interconnection.

Check the grounding of the unit.
Filter Inserts
Also check:

Check the filter inserts for cleanliness and intactness.
 Check whether the filter inserts are inserted to the rear end
position.
 Check whether the differential pressure sensors are set to
the required end pressure loss of the filter. see figure.
End pressure loss recommended by the manufacturer, filter
(EN 13053:2006 E)
 G3, G4
150 Pa

M5, M6, F7 200 Pa
 F8, F9 300 Pa
Water and Glycol Heaters and Direct Evaporators

Check the heat-exchanging surface fins for damage.

Check the condition of the inlet and outlet piping.
 Check the connection and elements of the cooling circuit.
 Check the cooling circuit piping for proper insulation.

Check the connection of the cooling circuit.