Table of Contents
Advertisement
Installation
Spacer bars must be inserted between the lifting wires above the
unit to protect the product from being damaged. When handling
the unit using a fork-lift truck, the used lifting forks of the fork-lift
truck must be long enough to reach across the whole width of
the unit (or its block), i.e., they must support both side beams of
the base frame.
Storage Conditions
As standard, the air-handling units are packed in PE foil. They must
be stored in indoor rooms complying with the following conditions:
Maximum relative air humidity must not exceed 85%.
Condensation must be eliminated and the ambient tempe-
rature must be in the range of -20°C to+40°C.
The air-handling unit must be protected against penetration
by dust and caustic vapours, or other chemical substances
which could cause corrosion of the air-handling unit's structural
components.
The air-handling unit must not be exposed to the direct
effects of solar radiation.
CAKE compact air-handling unit blocks, as well as its sepa-
rate blocks, may only be stored in the same position in which
they are operated.
Stacking
Stocking of the transport blocks of the CAKE compact air-handling
units is prohibited!
Air-handling Unit Safety
Personnel Protection Measures:
Protection against Dangerous with Non-Live Parts
The protection against dangerous contact with non-live parts
is performed by mechanical connections ensuring electrical
conductivity or by interconnection with a protective conductor
(PE) in accordance with ČSN EN 60204-1 ed.2.
Protection against Dangerous with Live Parts
Figure 3
Protection is ensured as follows:
Integrated removable covers (motor drives, measuring and
control elements and terminal boxes) which can only be re-
moved using tools and internal parts accessible only using the
service doors of the compact air-handling unit.
By door of the sheet metal switchboard box (this box serves
to place electrical equipment inside the air-handling unit) can
only be unlocked using a special tool and are accessible from
the service side, degree of protection IP44 (ČSN EN 60529-1).
Protection of the frequency inverters situated inside the air-han-
To connect the grounding, a
ground connection point is prepa-
red on the base frame on which a
lightning conductor clamp can be
connected. Another grounding
connection point is situated on
the upper casing of the unit. The
entire unit is conductively inter-
connected so there is no need
for additional interconnection.
CAKE Air-handling units
dling unit against dangerous contact of live parts is ensured by
the degree of protection IP20 of the built-in devices in accordance
with ČSN EN 60529.
Staff qualification requirements
Installation, connection, commissioning, repairs and maintenance
can only be performed by properly qualified personnel. Electrical
wiring, interconnection of individual parts, initial inspection, ope-
ration and maintenance must be performed in accordance with
applicable standards and regulations. The user is responsible for
device use in accordance with applicable standards.
Working on Air-handling Unit
When performing any work, repairs, maintenance or cleaning,
the device must always be safely disconnected from the power
supply. When planning or installing the air-handling unit, observe
normative requirements for safe access to the air-handling
unit. When reinstalling the covers also restore their conductive
connections (properly tighten the screws using fan washers or
interconnect them by the grounding wire). Maintain the prescribed
degree of protection..
Installation
Location
The surface of the site for the air-handling unit installation must be
level and flat. Maximum misalignment of the floor or supporting
structure intended for the compact air-handling unit installation
must not exceed 1 mm per 1 meter. To eliminate floor slope or
other floor inequalities, the adjustable feet must be used (for
adjustment, refer to the chapter "Adjustable and Fixed Feet").
Observance of this condition is important for installation as well as
for the air-handling unit operation. The CAKE compact air-handling
unit does not need any special anchoring. To eliminate possible
vibrations, it is advisable to put grooved rubber stripes under
the air-handling unit. It is recommended to place the compact
air-handling unit so that the gap between the unit and wall will
be at least 50 mm (to eliminate growth of mould on the walls).
Pay extra attention, if it is necessary to place the air- handling
unit close to combustible materials. In this case it must always
be assessed maximum temperature of the unit's casing and flash
point of the combustible material.
Service Access
When planning the air-handling unit location, it is necessary to
keep sufficient space for maintenance, service and operating.
It is essential to ensure sufficient space for opening the doors,
removing all filtration inserts, full extension of all heat-exchangers,
including heat recovery heat-exchangers.
5
Advertisement
Table of Contents
