Swegon GOLD SD, GOLD RX, GOLD PX, GOLD CX Description
20190329 We reserve the right to alter specifi cations.
GOLD
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Description of the air handling unit
General, Range of Application, Certifi cation ................................................................... 2
Mechanical Design ............................................................................................................. 3
Electrical and Control Equipment ..................................................................................... 9
Hand-Held Micro Terminal and How to Use the Menus ................................................ 10
Control Schedule ............................................................................................................... 11
Delivery Version ................................................................................................................ 16
Possible combinations for fi lter/fan sections, RX, size 014-030 .................................... 17
Possible combinations for fi lter/fan sections, PX, size 004-008 .................................... 19
Possible combinations for fi lter/fan sections, PX, size 011-030 .................................... 21
Installation Tips ................................................................................................................ 23
Contents
GOLD PX GOLD RX
GOLD SD
GOLD CX
GOLD
We reserve the right to alter specifi cations. 20190329
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Description of the Air Handling Unit
The GOLD RX/PX/CX air handling units are complete with
direct-driven supply air and extract air fans, supply air and
extract air fi lters and heat exchanger. The heat exchanger
is either a rotary heat exchanger (RX), counterfl ow heat
exchanger (PX) or coil heat exchanger (CX).
The GOLD SD single-direction units are supply air/extract
air handling units with one direct-driven supply air or
extract air fan. A fi lter is available as an option for all
sizes. The coil heat exchanger and unmounted pipework
package can be selected for the size 004-120 units.
The GOLD has built-in control equipment that can be
operated from the hand-held micro terminal in the form
of a touchscreen.
The electrical and control system is completely integrated
into the air handling unit. The microprocessor-based
equipment controls and regulates temperatures, airfl ows
and other functions. A large number of functions are built
into the system and are simple to activate.
If supplementary functional sections such as dampers
and air coolers are required, they must be installed in the
ductwork (uninsulated duct accessories) or be docked to
the air handling unit (insulated duct accessories). Unit sections such as e.g. the multisection and air bypass section
can be installed in the air handling unit arrangement of
the size 004-120 RX/PX/CX units.
With provision for cooling and heating
The GOLD is also well suited for cooling and heating.
Control functions are ready to activate in the control
system and the equipment for cooling as well as for preheating and reheating are available as accessories.
Field of Application
The GOLD units are designed for use in comfort ventilation applications. Depending on the variant selected,
GOLD units can be utilized in buildings such as offi ce
buildings, schools, day nurseries, public buildings, shops,
residential buildings, etc.
GOLD units equipped with counterfl ow-/coil heat
exchanger (PX/CX) and separate supply air and extract air
handling units (SD) can also be used for the ventilation
of moderately humid buildings; however not where the
humidity is continuously high, such as in indoor swimming
baths.
The separate GOLD supply air and extract air handling
units (SD) are designed for applications in which the
supply air and extract air fl ows need to be completely
separated from one another or where, due to limited
available space, separate units for supply air and extract
air are needed. They can also be used individually if only
one of the variants is needed.
GOLD units equipped with the roof, air intake section and
exhaust air hood accessories can be installed outdoors.
The GOLD is designed and tested for temperatures, in the
surroundings and the air stream, from -40°C to +40°C.
However, for GOLD RX the temperature difference
between the outdoor air and extract air must not exceed
70°C.
GOLD conforms to the requirements set out in the
hygiene design regulations VDI 6022, see the separate
guide.
Certifi cation
Swegon has a certifi cated quality management system
that conforms to ISO 9001 and an environmental management system that conforms to ISO 14001 Standards.
The GOLD air handling system is also certifi cated by
Eurovent, No. AHU-06-06-319 and the Passive House
Institute.
General
Sensor designations and colours of arrows in
this publication conform to IEC 81346-1
www.eurovent-certifi cation.com
N° 06.06.319
Range: GOLD
20190329 We reserve the right to alter specifications.
GOLD
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Description of the Air Handling Unit
Mechanical Design
Casing of the GOLD RX/PX/CX
Composed of flush-mounted cover panels and inspection doors. The outer skin is made of galvanized sheet
steel, re-painted in Swegon’s own grey metallic paint
(closest comparable RAL colour: 9007). The inner skin is
made of aluminium-zinc plated sheet steel. The entire air
handling unit conforms to Environmental Class C4. CE
marked. Conform to the provisions of EN 61000-6-2 and
EN 61000-6-3 Standards. Panel thickness of 52 mm with
intervening insulation consisting of mineral wool.
The inspection doors are hung on hinges and are fitted
with flush-mounted door handles. The door handles must
be opened in two steps to equalise the pressure before
the door can be opened completely.
Casing performance
Air leakage, class: L1(M).
Thermal bridges: TB2.
Thermal transmission: T2.
Mechanical strength D1.
Applicable to sizes 004/005
and 007/008 inside a common casing:
Common casing with two inspection doors. One of the
door handles of each inspection door can be locked.
The safety isolating switch is located on the outside of the
connection hood.
Circular duct connections for insertion joints fitted with a
rubber seal ring as standard.
The GOLD RX with rotary heat exchanger can be
mounted on base beams, a foundation or on a stand. Prefitted base beams are obtainable as optional equipment; a
stand supplied unmounted is available as an accessory.
GOLD PX units with counterflow heat exchanger are
supplied with base beams. A set of legs (four legs) to be
screwed into the base beams is available as an accessory.
Applicable to sizes 004/005
and 007/008 in split version as well as size 011-120:
The basic arrangement of the size 004-080 units consists
of three unit sections (two fan/filter sections and one
heat exchanger section). The size 100/120 units consist of
five (RX) or six (CX) sections.
Each section/unit section has one or two inspection
doors. One of the handles for each one of both outer
inspection doors is lockable. On the size 120 units, the
inspection door of the heat exchanger section (GOLD RX)
is also lockable.
The size 014-120 units are equipped with rectangular duct
connections for slip-clamp jointing as standard. The size
004-012 units are equipped with circular duct connections for insertion joints fitted with a rubber seal ring as
standard.
The unit is equipped with base beams.
GOLD RX, size 030
GOLD RX, size 008
GOLD PX, size 012, full face end connection panel
On the size 004-020 units, the safety isolating switch is
externally located on the connection hood.
On the size 025-120 units, the safety isolating switch is
externally located on the heat exchanger section of the
unit.
GOLD
We reserve the right to alter specifi cations. 20190329
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Description of the Air Handling Unit
Mechanical Design
Sizes 004/005 and 008
Sizes 014-080
Shows the variant with functions: fi lter + coil heat exchanger + fan.
Casing of the GOLD SD
Composed of fl ush-mounted cover panels and inspection doors. The outer skin is made of galvanized sheet
steel, re-painted in Swegon’s own grey metallic paint
(closest comparable RAL colour: 9007). The inner skin is
made of aluminium-zinc plated sheet steel. The entire air
handling unit conforms to Environmental Class C4. CE
marked. Conform to the provisions of EN 61000-6-2 and
EN 61000-6-3 Standards. Panel thickness of 52 mm with
intervening insulation consisting of mineral wool.
The inspection doors are hung on hinges and are fi tted
with fl ush-mounted door handles. The door handles must
be opened in two steps to equalise the pressure before
the door can be opened completely.
Casing performance
Air leakage, class: L1(M).
Thermal bridges: TB2.
Thermal transmission: T2.
Mechanical strength D1.
Applicable to sizes 004-012, common casing:
Composed of one or two sections depending on the variant selected. Possible variants are fan (with space for a
fi lter) or fan (with space for a fi lter) + coil heat exchanger.
The fan section casing has one (sizes 004-008) or two
(sizes 012) inspection doors. The handles are lockable.
Space for a pleated fi lter of fi lter class ePM10 60% (M5)
or ePM1 50% (F7) is available and can be ordered as an
accessory.
The safety isolating switch is located on the inspection
side by the inspection door of the fan section.
Circular duct connections for insertion joints fi tted with a
rubber seal ring as standard.
The GOLD SD size 004-008 without coil heat exchanger
can be mounted on base beams, a foundation or on a
stand. Prefi tted base beams are obtainable as optional
equipment; a stand supplied unmounted is available as an
accessory.
GOLD SD size 004-008 with coil heat exchanger and
GOLD SD size 11/12 is equipped with base beams.
Applicable to sizes 004-012, split version and size
014-120 :
Composed of one to three sections depending on the
variant selected. Possible variants are fan, fi lter + fan or
fi lter + coil heat exchanger + fan.
The sections for fan and fi lter have their own inspection
door. One of the door handles of the outer inspection
door can be locked.
The safety isolating switch is located on the inspection
side.
The size 004-012 units are equipped with circular duct
connections for insertion joints fi tted with a rubber seal
ring as standard. The size 014-120 units are equipped
with rectangular duct connections for slip-clamp jointing
as standard.
The unit is equipped with base beams.
20190329 We reserve the right to alter specifications.
GOLD
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Filters
The filter material is glass fibre. The filter holder has a
filter locking system designed for effective sealing and
complies with the requirements for bypass leakage to
Class ePM1 85% (F9). All filters can be selected as ePM10
60% (M5) or ePM1 50% (F7) filters.
GOLD RX Top size 004-012 is equipped with pleated
filters.
The separate GOLD SD supply air and extract air handling
units in sizes 004-012 in a common casing can have
pleated filters as an option.
The units in other sizes/variants have bag filters of ample
proportions on both the supply air and outdoor air sides.
Pressure sensors for measuring the pressure drop across
the filters are incorporated into the control system.
Pre-filter inside air handling units
Prefilters installed inside air handling units can be ordered
as optional extras (does not apply to the type RX Top
units).
Fans
The direct-driven fans are of GOLD Wing+ type, unique
axial-centrifugal fans with the focus on excellent power
efficiency, uniform airflow and low noise level. The GOLD
Wing is patented. Functional sections such as air coolers
and bends can be connected directly against the air handling unit without appreciable pressure losses. This saves
space in the fan room.
The fans are driven by high-efficiency EC motors, which
together with a motor control system especially developed for the GOLD, perform with extremely high efficiency.
The fans are approved for continuous operation in temperatures of up to 40°C.
The fans are tested for, and can manage operation for
one hour at 70°C.
The fan motors have a motor control system for variable
speed regulation and the fans have measurement tappings for continuous measurement and regulation of the
airflow.
The fans are effectively vibration-isolated from the casing
by means of rubber bushings/flexible connections.
The fans are fixed in their positions by means of locking
knobs/screws and clamping bands. These fasteners can
easily be loosened, after which the entire fan package can
be withdrawn for inspection and maintenance.
Description of the air handling unit
Mechanical Design
Prefilters are used in ventilation systems, in which the
extract air and/or the outdoor air is/are heavily polluted
and it is desirable to prevent the fine filters inside the
GOLD unit from becoming clogged after a short period of
use.
the filters are of woven aluminium type or Class Coarse
65% (G4) compact filters.
Pressure sensors for measuring the pressure drop across
the filters are incorporated into the control system.
GOLD
We reserve the right to alter specifi cations. 20190329
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Description of the Air Handling Unit
Heat exchanger
Rotary heat exchanger
RECOnomic/RECOsorptic rotary heat exchanger with a
temperature effi ciency of up to 85%. The need for heat
is dealt with by automatically and variably regulating the
speed of the rotor.
The rotary heat exchanger effectively recovers cooling
energy as well.
It is available in a sorption version (RECOsorptic) for moisture recovery, which reduces operating and investment
costs for cooling and improves indoor comfort levels in
the winter, as well as in an epoxy-treated version.
Purging sector, commissioning plates and pressure measurement tappings as standard, ensure that the extract air
will not be carried over to the supply air.
The RECOnomic/RECOsorptic heat exchanger is patented.
Mechanical Design
Purging sector
Counterfl ow heat exchanger
The counterfl ow heat exchanger is as standard equipped
with centre-mounted bypass dampers and two heat
exchanger dampers for variable and automatic regulation
of the heat exchanger’s effi ciency on heat recovery.
The counterfl ow heat exchanger is available in two versions: Normal effi ciency (MPE, Maximum Pressure Effi ciency) and high effi ciency (MTE, Maximum Temperature
Effi ciency) respectively. In the MPE version, the focus is on
low pressure drop across the heat exchanger. In the MTE
version, priority is given to high temperature effi ciency.
Internal leakage between air streams conforms to the
provisions of Ductwork leakage class L2.
In cold weather, and when the extract air is humid, there
is risk of frosting inside the plate heat exchanger. The
GOLD PX is therefore equipped with anti-frost protection.
RECOfrost anti-frost protection
The pressure drop across the heat exchanger, extract air
temperature, moisture content in the extract air and outdoor air temperature are measured.
With consideration given to the pressure drop across the
heat exchanger, the extract air temperature, the moisture
content in the extract air and the outdoor air temperature, the control system individually regulates dampers
for bypass and the heat exchanger for section-by-section
defrosting without the formation of frost. This enables
high annual effi ciency, smaller air heaters and pressuredrop-optimized operation during the spring and autumn.
20190329 We reserve the right to alter specifi cations.
GOLD
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Coil heat exchanger
The coil heat exchanger in the one-piece units, GOLD
CX, sizes 035-080, are supplied complete from the factory; including mounted pipework package with all the
necessary components. The system is normally fi lled with
liquid, vented, adjusted and performance-tested prior
to delivery, but can also be ordered in unfi lled condition
e.g. for housing improvement projects or if the application requires fi lling with another mixture instead of 30 %
ethylene glycol. On the size 100/120 GOLD CX one-piece
unit, the pipework package (accessory) including separate
control unit are supplied in unmounted condition.
Coil heat exchangers and pipework packages are available
as unmounted accessories for the separate size 004-120
supply air and extract air handling units (SD) A separate
control unit for the coil heat exchanger is always included
in the supply.
The pipework package's valve variably regulates the coil
heat exchanger's effi ciency on heat recovery and the
circulation pump is demand-controlled.
In cold weather, and if the extract air is humid, there is
risk of frosting in coil heat exchangers. The GOLD CX/SD
is equipped with an extremely effective anti-frost protection that measures the temperature of the liquid in the
extract air coil and also the humidity in the extract air.
Taking the humidity into consideration, the IQlogic control
system calculates the lowest permissible liquid temperature without risk of frosting inside the coil. The valve in
the pipework package is then controlled to prevent the
temperature from dropping below this limit.
Description of the Air Handling Unit
Mechanical Design
GOLD
We reserve the right to alter specifi cations. 20190329
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Duct Connections
Are for sizes 004/005, 007/008 and 011/012 circular and
designed for connection to ducts with insertion joints
fi tted with a rubber seal ring. A duct bend fi ts directly
into the connection. The duct connections are horizontally and vertically offset to enable ducts to be run in any
direction without blocking one another.
The size 014-120 units have rectangular duct connections
with a securely mounted connection frame for slip-clamp
joint connection. Type METU connection frames are available as an accessories.
GOLD RX /PX are also available in a top-fed variant, GOLD
RX/PX Top, with all the duct connections upward. GOLD
RX/PX Top is available in sizes 004-030.
To further reduce pressure losses, a full face end connection with larger rectangular duct connection is also
offered as an accessory (all sizes).
The air handling unit's GOLD Wing+ fans provide a
uniform airfl ow immediately downstream of the outlet
making it possible to connect duct bends and functional
sections, for example cooling coils, directly to the unit
without appreciable pressure losses.
If insulated duct accessories are selected, they should be
docked directly against the air handling unit. The air handling unit is then supplied without end connection panel
for the relevant inlet/outlet.
Pressure Adjusting Plates
(applicable to air handling units with rotary heat
exchanger only)
The unit is equipped with pressure adjusting plates
to ensure that the purging air fl ow through the heat
exchanger will be as it was designed to be. These plates
make it possible to achieve correct pressure balance in the
unit so that the purging airfl ow will pass in the correct
direction.
The pressure adjusting plates are supplied in unmounted
condition and shall be positioned by the extract air inlet of
the air handling unit.
Environment Declaration
Swegon AB has a certifi cated environmental management
system that conforms to ISO 14001 Standard and is registered on the REPA Register, no. 5560778465.
A Building Material Declaration with a complete list of
constituent materials is available on Swegon's home page.
Description of the Air Handling Unit
Mechanical Design
Circular duct connections
Rectangular duct connections
Circular duct connections
GOLD RX Top
Rectangular duct connection
GOLD RX Top
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