Lennox FLEXAIR FAC 085, Инструкция по применению

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Application Guide /FLEXAIR-AGU-1505-E
1.8. CONSTRUCTION, INSTALLATION
AND SERVICE
UNIT CONSTRUCTION
FLEXAIR by Lennox is assembled with the highest standards
of quality.
FLEXAIR units comply with the PED 97-23 and EN 60204
standard. It is manufactured in ISO 9001 and ISO 14001 factories.
This construction guarantees high corrosion resistance and lower
the weight impact, also ensuring that the air leakages are reduced
to the minimum. To improve the resistance to anticorrosion, the
panels are prepainted in RAL 9003.
TRANSPORT AND HANDLING
To facilitate handling of the
unit and minimize the risk of
damage,
FLEXAIR units are
provided with lifting lugs located
in the base frame of the unit.
For transport and handling,
the units are wrapped in a
retractable plastic protection
PLUG AND PLAY UNIT
All options are factory installed on the unit, which means that
they are ready for use, optimizing the time spent on site for the
installation. Bottom entry (through the base) for electrical power
and hot water (if option
fi tted) lines are available as standard.
To make installation easier, FLEXAIR power supply does not
require "neutral" connection. It is powered by 400 V, 3 phases,
50 Hz.
Circuit breakers
To improve safety and extend life time, circuit breakers protect
against over-loading, over current and a disconnected supply
phase. Maintenance is also improved as there is no requirement to
change fuses. The electrical panel is manufactured in accordance
with EN60204 electrical directive.
Numbered wires
All wires and connectors are numbered as shown on the electrical
drawing to facilitate maintenance and diagnostic
Main disconnect switch
The main switch is used as an emergency cut off.
It is mandatory to guarantee a proper accessibility to this switch.
Speci
fi c footbridges must be installed if the machine environment
is requiring it.
Main disconnect switch is lockable to increase safety around
the rooftop unit.
Switching off the unit with the disconnect switch will reset all.
Disconnect switch will be sized accordingly to the options picked
with the unit.
1- GENERAL DESCRIPTION
3: Master Slave "average":
The master gives the ventilation order and the room temperature/
humidity/CO2 used by all rooftop is the average of all rooftop,
each rooftop has its own set point.
4: Master Slave "cooling/heating":
All rooftop are stand-alone but the slaves have to have the same
running mode as the master (Cooling or heating).
5: Master Slave “Back-up”:
One rooftop is the back-up unit and will operate if any of the
other rooftops is stopped due to a major problem.
6: Rolling Back-up mode:
Same as above, except the "back-up" unit will change once a
week on Tuesday.
Note that, the outside temperature/humidity/CO2 given to all
rooftops can either be the average of all unit connected or the
external humidity/temperature of the master, allowing the use
of a single "weather station" for the whole site.
Faults and alarms
eCLIMATIC manages more than 90 different faults and alarms
codes and can store the last 32 with time and date. The stored
faults and alarms can then be displayed on the DS service
display and on the communication bus with the full text detail.