Commissioning - Remak VCS Installation And Operating Instructions Manual

Commissioning

Note: As appropriate, the above-mentioned instructions ap-
ply also for control units integrated into the air-handling unit
while observing the control unit installation and operating
instructions delivered with the air-handling unit.
Check the completeness and intactness of the delivery in ac-
cordance with the bill of delivery before installation.
Commissioning
Fitting and Wiring Check
A careful check and verification of the wiring of all control
system components in accordance with the attached unit
wiring diagram must be performed before the first start-up.
The system cannot be connected to the power supply until
these checks have been performed.
First of all, it is necessary to check the presence, locations and
connections of the temperature sensors, fan thermo-contacts
and heaters in accordance with the M&C project. Further, the
connections of all error inputs must be checked.
It is also essential to check the fans, electric heaters, heat ex-
changers, filters and other parts of the connected air-handling
unit for correct fitting in accordance with the air-handling
accompanying documentation.
The above-mentioned checks must include a functionality
check of each component.
Special attention must be paid to the check of the conduc-
tive interconnection of all parts of the air-handling unit and
associated devices.
Conditions for Connection
The connections must be performed in accordance with the
applicable local wiring standards and regulations. Before put-
ting the unit into operation, an initial wiring inspection must
be performed in accordance with the national regulations.
Settings
The VCS control unit has been manufactured according to the
customer's requirements (the project), and the basic param-
eters have been pre-set so that the unit is ready for operation.
With these settings, the control unit will start and begin the
control for the pre-set parameters providing the connection
of the unit has been performed correctly.
However, the professionals performing the unit commissioning
must always check or adapt the air-handling unit's operating
parameters to the specific design and behaviour of the control
system and operating or local conditions.
It is especially necessary to pay attention to the control
constants and parameter, various correction values,
temperature modes and time schedules, optional modes
and functions.
The data points are accessible through the HMI control panel.
Setting the user access levels is an important part of the
settings procedure.
The default factory settings must be re-set according to the
user and service company needs.
The Access passwords are the basic pre-set parameters which
need to be reset when commissioning the unit, see the chapter
Control (HMI-SG).
Control units VCS
Additional Settings:
n To optimize the interaction between the control unit and
peripheral devices, it is necessary to set, using the HMI-
SG controller (see the List of Data Points in the section
Settings – Control Signal Characteristic), correspond-
ing values of the analogue signals for heating, cooling,
heat recovery and gas heating, optional from 0–10 V and
2–10 V (pre-set).
The values 2–10V are suitable for REMAK or Belimo ac-
tuators.
Room temperature Measuring Point Selection
n Up to two room temperature sensors can be installed in
the air-conditioned room (HMI-SG controller with an inte-
grated temperature sensor plus one additional temper-
ature sensor, or two HMI-SG controllers with integrated
temperature sensors). The final room temperature val-
ue for the control can be set as the minimum, maximum
or average of both sensors (see the List of Data Points -
Temperature Measuring Point Selection).
Selection of the specific point for adjusting or measuring the
temperature value entering the control process results in more
accurate setting of the room temperature.
Warning
The device parameters are structured and made available
to users in accordance with their user roles (access levels).
These roles must be assigned to the users according to their
expertise and responsibility for device operation.
Basic Application Parameterization
n Default and common operation parameterization is de-
scribed in the chapter Control (see particular controller).
General Overview of Parameters
For a general overview of parameters available in the menu
and access authorization of users, refer to the chapter VCS
– Parameter Overview and Default Factory Settings. For the
menu with HMI controller parameters and default values, refer
to the chapter Control (HMI-SG).
Important Notes
Correct assembly, installation, commissioning and proper
control are the essential conditions for flawless and safe
operation of the control unit. The components connected to
the control unit must correspond with the specification in the
control unit documentation.
The procedures specified by the manufacturer in the unit
documentation and the Service Regulations measures must
be observed throughout the unit service life.
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