Swegon GOLD SD Operating and installation instructions

20190329 We reserve the right to alter specifications.
GOLD
1
Description of the air handling unit
General, Range of Application, Certification ................................................................... 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 filter/fan sections, RX, size 014-030 .................................... 17
Possible combinations for filter/fan sections, PX, size 004-008 .................................... 19
Possible combinations for filter/fan sections, PX, size 011-030 .................................... 21
Installation Tips ................................................................................................................ 23
Contents
GOLD PX GOLD RX
GOLD SD GOLD CX

GOLD
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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 filters and heat exchanger. The heat exchanger
is either a rotary heat exchanger (RX), counterflow 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 filter 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, airflows
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 sec-
tions 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 pre-
heating and reheating are available as accessories.
Field of Application
The GOLD units are designed for use in comfort ventila-
tion applications. Depending on the variant selected,
GOLD units can be utilized in buildings such as office
buildings, schools, day nurseries, public buildings, shops,
residential buildings, etc.
GOLD units equipped with counterflow-/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 flows 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.
Certification
Swegon has a certificated quality management system
that conforms to ISO 9001 and an environmental man-
agement system that conforms to ISO 14001 Standards.
The GOLD air handling system is also certificated 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-certification.com
N° 06.06.319
Range: GOLD

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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 inspec-
tion 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. Pre-
fitted 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 connec-
tions 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
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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: filter + coil heat exchanger + fan.
Casing of the GOLD SD
Composed of flush-mounted cover panels and inspec-
tion 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 004-012, common casing:
Composed of one or two sections depending on the vari-
ant selected. Possible variants are fan (with space for a
filter) or fan (with space for a filter) + 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 filter of filter 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 fitted 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. Prefitted 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, filter + fan or
filter + coil heat exchanger + fan.
The sections for fan and filter 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 fitted 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 han-
dling 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 devel-
oped for the GOLD, perform with extremely high effi-
ciency.
The fans are approved for continuous operation in tem-
peratures 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 tap-
pings 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
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Description of the Air Handling Unit
Heat exchanger
Rotary heat exchanger
RECOnomic/RECOsorptic rotary heat exchanger with a
temperature efficiency 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 mois-
ture 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 meas-
urement 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
Counterflow heat exchanger
The counterflow 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 efficiency on heat recovery.
The counterflow heat exchanger is available in two ver-
sions: Normal efficiency (MPE, Maximum Pressure Effi-
ciency) and high efficiency (MTE, Maximum Temperature
Efficiency) 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 efficiency.
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 out-
door 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 tempera-
ture, 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 efficiency, smaller air heaters and pressure-
drop-optimized operation during the spring and autumn.

20190329 We reserve the right to alter specifications.
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 fac-
tory; including mounted pipework package with all the
necessary components. The system is normally filled with
liquid, vented, adjusted and performance-tested prior
to delivery, but can also be ordered in unfilled condition
e.g. for housing improvement projects or if the applica-
tion requires filling 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 efficiency 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 protec-
tion 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 tempera-
ture 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
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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
fitted with a rubber seal ring. A duct bend fits directly
into the connection. The duct connections are horizon-
tally 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 avail-
able 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 con-
nection with larger rectangular duct connection is also
offered as an accessory (all sizes).
The air handling unit's GOLD Wing+ fans provide a
uniform airflow 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 han-
dling 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 flow 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 airflow 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 certificated environmental management
system that conforms to ISO 14001 Standard and is regis-
tered 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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GOLD
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General
The electrical and control system is completely integrated
into the air handling unit. The microprocessor-based
equipment controls and regulates temperatures, airflows
and other functions. A large number of functions are built
into the system and are simple to activate.
The air handling unit can be automatically controlled in
several ways via the built-in timer or main control system,
however it can also be demand-controlled e.g. via a
CO2sensor. Manual control is also possible.
A large number of functions and settings can be acti-
vated/entered via a main control system.
Control Inaccuracy:
Temperature ± 1oC.
Airflow ± 5%.
Power Efficiency
The design and performance of the air handling unit are
optimized for achieving excellent power efficiency.
Standards
The unit meets the provisions of the ELSÄK-FS 1999:5
and SS-EN 60204-1 electrical safety standards. Protection
class IP 54.
Interference Level
The unit meets the requirements defined in the EMC
Directive and has been tested according to the provi-
sions in EN 61000-6-2 and 61000-6-3 (electromagnetic
emissions in dwellings, office buildings, shops and similar
environments as well as for immunity in industrial environ-
ments).
Use of an earth fault circuit breaker
The earth fault circuit breaker, if required, should only
serve the air handling unit and must be of a type
designed for use with the control system of the EC motor.
Control Unit – GOLD SD
If both GOLD SD supply air and extract air handling units
are used in a ventilation system, the supply air unit is
fitted with a control unit and the extract air unit is with-
out. A communication cable is used to connect them to
one another making it possible to control both units.
Electrical and Control Equipment
On the smaller unit sizes, the electrical and control equip-
ment must be connected via the junction hood.
Connection cables for hand-held micro terminal, supply
air temperature sensor, air heater and air cooler have
modular connectors.
Other accessories and external functions can be con-
nected to an easy-to-access row of terminal connections.
Description of the Air Handling Unit
All electrical and control equipment is collected inside a special
enclosure in the centred section of the air handling unit.
Electrical and Control Equipment
An extra terminal for a single phase 230 V supply is also
provided after the safety switch on the GOLD unit. This
terminal can be used for external functional sections and
can be loaded with max. 1.5 A.
The extra functional sections such as a cooling unit and
an electric air heater, must have a separate power supply.
GOLD RX/PX/CX
On the size 004-020 GOLD RX and the GOLD PX units,
electrical and control equipment must be wired via the
junction hood. On the size 025-070 and 080 GOLD RX
and the size 035-080 GOLD CX units, electrical and
control equipment must be wired via the panel on the
centre section of the air handling unit. On the size 080
GOLD RX, capacity variant 2, and the size 100/120 GOLD
CX units, electric power is connected across an external
safety switch and the electrical and control equipment
must be wired via the panel on the centre section of the
air handling unit.
GOLD SD
On the size 004-080 GOLD DS units, the electrical and
control equipment must be wired via the panel by the fan
inspection door. On the size 100/120 units, electric power
is connected across an external safety switch and the
electrical and control equipment must be wired via the
panel on the centre section of the air handling unit.

GOLD
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Description of the Air Handling Unit
The IQnavigator hand-held micro terminal, has 7" touch-
screens and is very simple and user friendly. Commis-
sioning and the entering of settings can be carried out
intuitively and in steps. Flow images and help texts are
always at hand.
The hand-held terminal is equipped with a three metre
long connection cable that can be connected via quick-fit
connector to the air handling unit's control unit (stand-
ard). Wireless communication between the hand-held
terminal and the GOLD unit can also take place via WLAN
(requires the IQnavigator hand-held terminal accessory
with WLAN).
Communication between the hand-held micro terminal
and the GOLD air handling unit can also transpire wire-
lessly via WLAN (accessory). It is just as simple to use a
computer, tablet pc or cell phone via WiFi. Double Ether-
net ports and USB connection are available as standard.
The preset values are stored and will not be unaffected in
the event of a power failure.
Hand-held micro terminal IQnavigator and image management

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GOLD
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BT3 Temperature sensor, outdoor air.
BT1 Temperature sensor, supply air. Positioned in
the ductwork
BT2 Temperature sensor, extract air.
T1/T2 Motor control system for variable speed
control of the fan motors.
BF1/BF2 Pressure transducer. Indicates for controlling
the fan speed so that the preset airflow will be
maintained.
BP1/BP2 Pressure transducer for checking the filter
status.
BP3 Pressure sensor for checking the heat
exchanger.
BG1 Rotation monitor for checking the rotation of
the heat exchanger.
E1 Electrical equipment cubicle containing the
control circuit card and other electrical
equipment for controlling internal and external
functions, etc.
P1 Hand-held micro terminal for setting airflows,
temperatures, control functions, in-operation
periods, etc. as well as alarms.
VVX Variable speed-controlled rotary heat
exchanger with air purging operation.
T3 Drive motor for the rotary heat exchanger
Diagrammatic description of the control functions, GOLD RX
The built-in control system controls and regulates temper-
atures, airflows, in-operation periods and a large number
of internal and external functions.
In that it is a microprocessor-based system, it can solve
highly complicated tasks. The specific components are
outlined below each individually in a simplified and sche-
matic specification.
When you use the AHU Design air handling unit selection
program for calculating data, you receive a project-specific flow
chart with complete description of pertinent unit functions.
Control Schedule
Description of the Air Handling Unit
T2
BF2
E1
BT3
BT2
T3
VVX
T1
BF1
BT1
P1
BP1
BP2
BG1
BP3

GOLD
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Description of the Air Handling Unit
BT3 Temperature sensor, outdoor air.
BT1 Temperature sensor, supply air. Positioned in
the ductwork
BT2/BM2 Extract air temperature sensor/Extract air
humidity sensor.
For RECOfrost anti-frost protection.
T1/T2 Motor control system for variable speed
control of the fan motors.
BF1/BF2 Pressure transducer. Indicates for controlling
the fan speed so that the preset airflow will be
maintained.
BP1/BP2 Pressure transducer for checking the filter
status.
BT6 Heat exchanger pressure sensor.
For anti-frost protection.
MG6 Actuator for by-pass and shut-off dampers.
E1 Electrical equipment cubicle containing the
control circuit card and other electrical
equipment for controlling internal and external
functions, etc.
P1 Hand-held micro terminal for setting airflows,
temperatures, control functions, in-operation
periods, etc. as well as alarms.
VVX Counterflow heat exchanger with bypass and
shut-off dampers.
BT20/BT30 Temperature sensor for density-corrected
airflow.
Diagrammatic description of the control functions, GOLD PX
The built-in control system controls and regulates temper-
atures, airflows, in-operation periods and a large number
of internal and external functions.
In that it is a microprocessor-based system, it can solve
highly complicated tasks. The specific components are
outlined below each individually in a simplified and sche-
matic specification.
Control Schedule
When you use the AHU Design air handling unit selection
program for calculating data, you receive a project-specific flow
chart with complete description of pertinent unit functions.
T2
BF2
MG6
BT3
BT2/BM2
VVX T1
BF1
BT1
BP1 BP2
BT6
E1
P1
BT20 BT30
BT7

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GOLD
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Description of the Air Handling Unit
BT3 Temperature sensor, outdoor air.
BT1 Temperature sensor, supply air. Positioned in
the ductwork.
BT2/BM2 Temperature sensor, extract air/Humidity
sensor, extract air. For anti-frost protection.
T1/T2 Motor control system for variable speed
control of the fan motors.
BF1/BF2 Pressure transducer. Indicates for controlling
the fan speed so that the preset airflow will be
maintained.
BP1/BP2 Pressure transducer for checking the filter
status.
BT6 Temperature sensor, coil heat exchangers. For
anti-frost protection.
G6 Circulation pump, coil heat exchangers.
MF6 Valve actuator, coil heat exchangers.
E1 Electrical equipment cubicle containing the
control circuit card and other electrical
equipment for controlling internal and external
functions, etc.
P1 Hand-held micro terminal for setting airflows,
temperatures, control functions, in-operation
periods, etc. as well as alarms.
VVX Coil heat exchanger with pipework package.
BT20/BT30 Temperature sensor for density-corrected
airflow.
BP3 Differential pressure sensor.
Diagrammatic description of the control functions, GOLD CX
The built-in control system controls and regulates temper-
atures, airflows, in-operation periods and a large number
of internal and external functions.
In that it is a microprocessor-based system, it can solve
highly complicated tasks. The specific components are
outlined below each individually in a simplified and sche-
matic specification.
Control Schedule
When you use the AHU Design air handling unit selection
program for calculating data, you receive a project-specific flow
chart with complete description of pertinent unit functions.
GOLD CX, sizes 100/120: Pipework package including control box are supplied in unmounted condition for floor or wall mounting (accessories).
T2
BF2
E1
BT3
BT2/
BM2
VVX
T1
BF1
BT1
P1
BP1
BP2
MF6
G6
BT6
BT20
BT30
BP3

GOLD
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Description of the air handling unit
Diagrammatic description of the control functions,
GOLD SD sizes 004-012, common casing
The built-in control system controls and regulates temper-
atures, airflows, in-operation periods and a large number
of internal and external functions.
Because the system is microprocessor-based, it can solve
highly complicated tasks. The individual components
each specified below in a simplified and diagrammatical
description.
Control Schedule
When you use the AHU Design AHU selection program for
calculating performance data, it provides you with a project-
specific flow chart with complete descriptions of pertinent
functions.
BT3 Outdoor air temperature sensor.
(Applicable to air handling units with coil heat
exchanger)
BT2 Outdoor air temperature sensor/supply air density
sensor (In extract air units: Extract air
temperature sensor/exhaust air density sensor)
BT1 Supply air temperature sensor. Positioned in the
ductwork. (Not used in extract air units)
BF1 Supply air fan pressure sensor. Indicates for
control of the fan speed so that the preset
airflow will be obtained. (In extract air handling
units: Extract air fan pressure sensor)
BP1 Supply air filter pressure sensor, if applicable. For
checking the status of the filter (In extract air
handling units: Extract air filter pressure sensor)
T1 Motor control system for variable speed control
of the fan motor.
E1 Electrical equipment cubicle containing a control
circuit card, if included, and other electrical
equipment for controlling internal and external
functions, etc.
E2 Control unit, if applicable, for controlling the
pipework package.
P1 Hand-held micro terminal, if specified, for setting
airflows, temperatures, control functions,
in-operation periods, etc. as well as alarms.
BT2
BP1 BF1
P1
BT1
E1
T1
E2
BT3

20190329 We reserve the right to alter specifications.
GOLD
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Description of the air handling unit
Diagrammatic description of the control functions,
GOLD SD, sizes 004-012 in split version and sizes 014-120
The built-in control system controls and regulates temper-
atures, airflows, in-operation periods and a large number
of internal and external functions.
Because the system is microprocessor-based, it can solve
highly complicated tasks. The individual components
each specified below in a simplified and diagrammatical
description.
Control Schedule
When you use the AHU Design AHU selection program for
calculating performance data, it provides you with a project-
specific flow chart with complete descriptions of pertinent
functions.
BT3 Outdoor air temperature sensor.
(Applicable to air handling units with coil heat
exchanger)
BT2 Outdoor air temperature sensor/supply air density
sensor (In extract air units: Extract air
temperature sensor/exhaust air density sensor)
BT1 Supply air temperature sensor. Positioned in the
ductwork. (Not used in extract air units)
BF1 Supply air fan pressure sensor. Indicates for
control of the fan speed so that the preset
airflow will be obtained. (In extract air handling
units: Extract air fan pressure sensor)
BP1 Supply air filter pressure sensor, if applicable. For
checking the status of the filter (In extract air
handling units: Extract air filter pressure sensor)
T1 Motor control system for variable speed control
of the fan motor.
E1 Electrical equipment cubicle containing a control
circuit card, if included, and other electrical
equipment for controlling internal and external
functions, etc.
E2 Control unit, if applicable, for controlling the
pipework package.
P1 Hand-held micro terminal, if specified, for setting
airflows, temperatures, control functions,
in-operation periods, etc. as well as alarms.
BT2
BP1 BF1
P1
BT1
E1
BT3 T1
E2

GOLD
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Delivery Version
RX/PX/CX, sizes 004-080
The GOLD RX/PX/CX units are composed of unit sections.
The unit sections are as follows:
• Fan/filter section
• Heat exchanger section (RX, PX, CX and RX/HC
respectively)
• Air recirculation section
• Air bypass section
• Multisection
• Duct crossover section (PX)
The basic arrangement of the GOLD RX/PX/CX units
consists of two fan/filter sections and one heat exchanger
section. The other air handling unit sections are optional,
see also the section entitled Complements and Accesso-
ries.
The unit sections in an air handling unit arrangement are
delivered separately or already fitted together with one or
several other unit sections as specified below:
• The fan/filter section with the fan in the upper sec-
tion is always supplied already fitted together with
another unit section, with the exception of CX (all
sizes) and RX/HC size 014-080.
• The heat exchanger section, RX, is always supplied
already fitted together with another unit section.
• The air recirculation, air bypass, multi and duct
crossover sections are always supplied already fitted
together with another unit section, with the excep-
tion of size 035/040.
• The max. length of a delivery unit is 3,000 mm.
• An air handling unit arrangement may at most be
divided into four delivery units (sizes 004-060).
See also Swegon's air handling unit software: AHU
Design.
Description of the air handling unit

20190329 We reserve the right to alter specifications.
GOLD
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Filter/fan sections for basic variants of standard RX and
RX Top can be combined in a number of different ways,
see below and the next page.
Description of the unit
Standard
Top
Outdoor air Supply air Extract air Exhaust air
Right-hand versionLeft-hand version
Basic variants
Possible combinations for filter/fan sections, RX, size 014-030
Option Option Option Option
outdoor air supply air extract air exhaust air
Supply air fan, left, upper level
Supply air fan, right-hand, lower level
Left-hand version Right-hand version
Supply air fan, right, lower level
Supply air fan, right-hand, upper level
Note that performance, dimensions and weight are dif-
ferent depending on whether the filter/fan section is
RX standard or RX Top, see section Sizing, installation,
dimensions and weights for GOLD RX.
Supply air fan, left, upper level
Supply air fan, right-hand, lower level
Supply air fan, right, lower level
Supply air fan, right-hand, upper level

GOLD
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Combinations
Possible combinations for filter/fan sections, RX, size 014-030
Description of the unit
Left-hand version Right-hand version
Top Standard
Standard Top
Top Standard
TopStandard
Top Standard
Standard Top
Top Standard
TopStandard
Outdoor air Supply air Extract air Exhaust air
Option Option Option Option
outdoor air supply air extract air exhaust air

20190329 We reserve the right to alter specifications.
GOLD
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Top
Basic variant
PX Top size 004-008 has, from PX standard side fed air
handling units, a deviating height measurement.
However, it is possible to order a side-fed filter/fan section
with a height measurement adapted to each size of PX
Top.
Description of the unit
Possible combinations for filter/fan sections, PX, size 004-008
Right-hand version
Left-hand version
These side fed filter/fan sections have the same perfor-
mance as a PX standard side fed filter/fan section, see the
section Sizing, installation, dimensions and weights for
GOLD PX.
Dimensions and weight deviate, see the following page.
Combinations
Top Side fed filter/
fan section
Side fed filter/
fan section
Top
Top Side fed filter/
fan section
Side fed filter/
fan section
Top
Left-hand version Right-hand version
Outdoor air Supply air Extract air Exhaust air

GOLD
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Possible combinations for filter/fan sections, PX, size 004-008
Description of the unit
Dimensions
The diagrams show side fed filter/fan sections with a
height measurement adapted to each size of PX Top and
centre section.
Filter/fan section to the left of the centre section Filter/fan section to the right of the centre section
GOLD A B C D E F G H I K Ø kg*
004 617 825 240 1300 181 230 460 1085 238 345 315 93 -115
005 617 825 240 1300 181 230 460 1085 238 345 315 93 -119
007 647 995 278 1517 230 271 543 1295 278 440 400 112-150
008 647 995 278 1517 230 271 543 1295 278 440 400 119 -15 4
C K D
PX
B
F
G
CK
B
F
G
D
ø
E
ø
E
I
I
ø
ø
ø
ø
C K D
PX
B
F
G
CK
B
F
G
D
ø
E
ø
E
I
I
ø
ø
ø
ø
* Only filter/fan section