Indigo
INDIGO
Air-water heat pump with inverter-controlled DC compressor, 10 to 21 kW
General information
Strong points
Standard version available in 2 sizes:
►► Inverter-controlled DC compressor
Nominal refrigeration capacity (A35; W7): 10 to 18
kW
►► Proprietary power control algorithm
Nominal heating capacity (A7; W45): 11 to 21 kW
Indigo introduces an inverter-controlled brushless DC compressor for the first time. Inverter based technology allows
the power delivered by the unit to be modulated depending
on the requirements of the system. The use of an inverter
allows efficiency values to be considerably improved: COP
and EER if compared with ON/OFF unit values.
The tracking algorithm (delivery of heating or refrigeration
capacity of the unit) was designed and tested by BlueBox
to further maximize efficiency values
►► Wide operating limits
►► Super low noise unit
►► Possibility of both outdoor and indoor installation
INDIGO
INDEX
PRODUCT DESCRIPTION
3
SPECIFICATIONS3
VERSIONS4
TECHNICAL SPECIFICATIONS FOR INDIGO
12
ELECTRICAL SPECIFICATIONS FOR INDIGO
12
TECHNICAL SPECIFICATIONS FOR RADIAL FAN (only for /RF version)
13
DIAGRAMS OF PUMPS
14
DIAGRAMS OF HEAT EXCHANGERS
14
OPERATING LIMITS
15
COOLING PERFORMANCE 30 Hz
16
COOLING PERFORMANCE 60 Hz
16
COOLING PERFORMANCE 90 Hz
17
COOLING PERFORMANCE 120 Hz
17
HEATING PERFORMANCE 30 Hz
18
HEATING PERFORMANCE 60 Hz
18
HEATING PERFORMANCE 90 Hz
19
HEATING PERFORMANCE 120 Hz
19
NOISE LEVELS - INDIGO
20
DIMENSIONAL DIAGRAMS OF INDIGO
20
2
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
PRODUCT DESCRIPTION
protection.
Inverter-controlled DC compressor
The compressor motor control driver (inverter) is provided with
integral electronic protection for overtemperature, overcurrent,
over or under-voltage and absence of one or more phases.
INDIGO uses inverter-controlled brushless DC compressors:
these compressors can change their rotation speed depending
on the power requirements of the system according to an
algorithm that aims to optimize the efficiency of the unit and,
when possible, avoid operation in ON/OFF mode. Compressor
speed can vary between about 40rps and 110rps.
Electronic thermostatic valve. The INDIGO series is provided
with an electronic thermostatic valve as standard with the
following characteristics:
• a high number of steps (over 2500) for greater accuracy in
the control of delivered power
• a high speed driver to respond with rapid adjustment of the
thermostatic valve to changes in compressor speed
• specific parametrization for operation in chiller mode and
in heat pump mode, so as to have optimal operation of
compressor and compressors at all times.
Absence of thermal wheel in chiller mode
operation
Normally, to guarantee correct operation of a hydronic heat
pump, there needs to be a minimum volume of water in the
system, to prevent excessive variation in water temperature
during periods of low load or a high switching on/off frequency
of the compressor.
The electronic control of the inverter is provided with automatic
soft-start system and continuous control of the compressor
curve to prevent and correct its use beyond the maximum
allowed limits.
Fans
Axial flow fans directly coupled to the electric motor, made
of plastic material with the blade profile having WINGLETS,
a special shape at the ends of the blades that allows noise
reduction and increased aeraulic performance.
The control manages the speed of the fans through a phase
cutting speed governor, in order to optimize operating
conditions and efficiency, and allow the unit to operate in heat
pump mode even for high external temperatures. This control
also has the effect of reducing the noise level of the unit: in
fact, the typical conditions under which the control will be
modulating the speed of the fans are those of the night, spring
and autumn. This ensures that, whenever there is a chance, the
machine will reduce the speed of the fans, and therefore the
noise, to the minimum.
To cover the ventilating section, there is a casing to reduce
noise emissions and protect the evaporating section from the
weather.
Thanks to inverter technology, INDIGO is able to reduce the
capacity delivered by the compressor to a minimum, so also
minimizing the volume of water required to optimize the
system.
The fans are axial flow fans, directly coupled to an
8-pole electric motor, with protection rating of IP 54,
and with shaped nozzles and safety guard in conformity
with UNI EN 294.
Power control algorithm
Source-side heat exchanger
Delivery of the heating or refrigeration capacity is managed
by the electronic control through an algorithm that ensures
maximum efficiency of the unit at all times.
An example: when the unit is switched on, the control will
force the unit to work at a speed that will maximize its
efficiency. If, after a set time, the unit has not reached set
point, the control will gradually increase compressor speed
until the water temperature starts to change and approaches
the required temperature.
Consists of a coil with copper tubes and aluminium fins having
a large exchange surface with fin pitch sized to maximize heat
exchange and reduce acoustic impact. The fin space of the
heat exchanger has been increased to allow the unit to work
at very low temperatures and high humidity.
SPECIFICATIONS
At the base of the heat exchanger there is a subcooler and a
further refrigerant circuit that prevents ice formation in the
lower part of the coil and facilitates the flow of condensation
during defrosting. The effects of the subcooler are: a reduced
number of defrosting sessions and the certainty of having a
clean heat exchanger at the end of defrosting. At the base of
the coil there is a condensation collection tank to allow it to
flow out to a drain.
Body
Heat exchanger on operation side
This will prevent compressor speed oscillations, especially in
extremely low load conditions.
The unit is made of galvanized sheet-iron and painted with
RAL 7035 that is highly weather resistant. The panels can be
removed easily to allow full access to internal components.
All bodies have a condensation collection tank with drain. A
thermostat-controlled anti-freeze heater on the bottom of the
tank protects it from ice formation.
Compressor
The compressors are “scroll” compressors with invertercontrolled brushless DC motor, operating with R410A. The
compressors are provided with integrated thermal overload
Swegon reserves the right to alter specifications.
Braze-welded stainless steel AISI 316 plate heat exchanger
insulated with a shell of closed-cell foam material that reduces
heat loss and prevents formation of condensation.
The heat exchanger is provided with a temperature probe for
freeze protection, a probe for measuring the temperature of
the incoming and outgoing water and a paddle flow switch
supplied as standard with it. The unit operates by controlling
the return temperature from the system.
www.swegon.com
3
INDIGO
Refrigerant circuit
Comprises: charging valve in the liquid and suction line, liquid
sight glass, solenoid valve, non-return valves, dehydrator filter,
electronic thermostatic valve with high number of steps, high
pressure transducer, low pressure transducer, high and low
pressure switches and safety valve, liquid receiver and suction
separator.
Electrical control panel
The electrical panel consists of:
• Main automatic circuit breaker and fuses to protect the
auxiliary and power circuits
• Compressor contactor
• Fan speed governor for condensation and evaporation
control
• Pump relay or overload cutout and contactor (in 1P version)
• General alarm clean contacts
• Microprocessor controller
Standard power supply 400V/3N~/50Hz
Control
Microprocessor control for management of the following
functions:
• Water temperature control with inlet control
• Freeze protection
• Compressor timing
• High pressure alert management
• Alarm signal
• Alarm reset
• Digital input for external ON-OFF switching
• Digital input for summer/winter selection
The control allows the following information to be displayed:
•
•
•
•
•
•
•
Outgoing water temperature
Incoming water temperature
Condensation temperature
Evaporation temperature
Temperature and differential set points
Description of alarms
Compressor and pump operation hour meter
for operation in chiller mode with low external temperatures
• Evaporation pressure control by means of speed governor
for operation in heat pump mode with high external
temperatures
• High pressure safety valve
• Protection against compressor overtemperature
Testing
The units are all factory-tested and supplied complete with oil
and refrigerant.
VERSIONS
/RF: Unit with ductable EC radial fan
The unit is made by replacing the axial fan with an EC radial
fan, namely with electronically commutated brushless motor.
This guarantees high efficiency levels for all working conditions
and allows a 15% saving on the power absorbed by each fan.
Also, through a 0-10V analogue signal sent to the fan, the
microprocessor carries out condensation/evaporation control
by continuous adjustment of air flow as the external air
temperature changes with a further reduction in electrical
absorption and a reduction in noise emissions.
These fans allow a nominal available pressure of 100 Pa, with
the possibility of reaching 250 Pa.
The version with radial fans involves the absence of a protective
casing.
The fan is protected by a casing that also acts as channel section
to which to connect the ejection duct. On the suction side, the
unit has a profile to facilitate connection of the ducting.
/HWS: Multifunctional heat pump
The unit in this set-up has two heat exchangers: one is the
user-side heat exchanger, for air conditioning and heating, and
the other is the domestic hot water heat exchanger dedicated
exclusively to domestic hot water production.
Controls and safety devices
The units are provided with the following safety devices:
• Water temperature probe on user side (located at heat
exchanger inlet)
• Antifreeze probe for triggering the antifreeze alarm (with
manual reset)
• High pressure switch (with automatic reset and limited
interventions)
• Low pressure switch (with automatic reset and limited
interventions)
• Mechanical paddle flow switch supplied as standard with
the unit (with manual reset)
• Condensation pressure control by means of speed governor
4
(Example of connection diagram of an INDIGO /HWS /1P /1R unit)
On the system side heat exchanger, the unit can produce
hot water or cold water to meet the heating and cooling
requirements of the building depending on the seasons.
On the heat exchanger dedicated to domestic hot water, the
unit produces high temperature water to be sent to a storage
tank outside the machine. This tank has been selected and
sized according to the requirements of the system.
Depending on the season, the unit works with different modes:
the change through the various operating modes (within the
season) is carried out automatically through the reading of the
temperature probes and the set points. Switching times and
logics have been designed to ensure the maximum efficiency
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
and reliability of the system.
This configuration must obligatorily be associated with a
suitably sized boiler in which to store high temperature water.
The boiler must have a well for insertion of the domestic hot
water probe, placed at the top, through which the controller
of the unit verifies the need to produce domestic hot water.
Summer operation
There are three summer operating modes:
• Chiller mode: the unit only produces chilled water for the
system.
• Chiller mode with contemporaneous production of domestic
hot water: the unit produces chilled water for the system
and domestic hot water at the same time. Recovery of heat
for domestic hot water production is total.
• Heat pump mode for domestic hot water production: when
there is no cold load and when requested by the domestic
hot water probe, the unit heats the water inside the storage
tank for domestic hot water, using the finned pack as
evaporator. The use of hot outside air as a heat source
ensures that extremely high COPs will be obtained.
The change from one mode to another takes place fully
automatically according to a priority logic in domestic hot
water production and, when there is a simultaneousness of
loads, by recovering condensation energy for domestic hot
water production.
Winter operation
There are two winter operating modes:
Heat pump mode for heating: the unit produces hot water at
the system-side heat exchanger for heating.
Heat pump mode for domestic hot water production: produces
high temperature hot water at the connected heater exchanger
of the domestic hot water storage tank.
The change from one mode to another takes place fully
automatically according to a priority logic in domestic hot
water production. In addition to the components of the basic
version, the /HWS unit includes:
• dedicated heat exchanger for domestic hot water production
• temperature probe to be positioned on the domestic hot
water storage tank
Hydraulic module options
/1P: unit with pump
The unit comprises a high efficiency electronic circulator,
hydraulic circuit water drain valve, safety valve set to 6 bar,
which corresponds to the maximum allowable operating
pressure.
These circulators are provided with a permanent magnet rotor
that guarantees very high efficiency levels for every operating
condition. The permanent magnet motor allows a 25% saving
in electricity compared to a classic asynchronous motor of the
same power.
/1R: unit with pump on domestic hot water side
The unit is provided with a high efficiency electronic circulator
for the domestic hot water side supplied installed inside the
Swegon reserves the right to alter specifications.
unit. This module can be combined only with units in /HWS
set-up.
/HWS units without the /1R module are provided with an
OK signal for management of an external pump. In the
HWS configuration, the recovery pump must obligatorily be
controlled by the unit.
These circulators are provided with a permanent magnet rotor
that guarantees very high efficiency levels for every operating
condition. The permanent magnet motor allows a 25% saving
in electricity compared to a classic asynchronous motor of the
same power.
Standard supply
•
•
•
•
•
•
Condensation/evaporation control with fan speed governor
Flow switch (supplied with the unit)
EC Directive 97/23 (PED) certification
Summer/Winter selection by digital input
Remote On/Off by digital input
Condensation collection tank
Accessories
All the units can be configured with various accessories to better
meet the requirements of the specific application into which
they will be inserted. To check availability and compatibility of
the accessories with size and configuration, please refer to the
price list or the selection software.
Hydraulic circuit accessories
• Filling unit with pressure gauge
• Anti-freeze seal
• Anti-freeze seal
• 3-way valve for management of domestic hot water
(supplied with the unit)
Electrical accessories
• Maximum and minimum voltage relay
• Double set point by digital input
• RS485 serial interface
• Remotely-controlled user terminal panel with temperature
probe (in addition to panel installed on machine)
• EC electronic axial fans
• Set point compensation depending on external air
temperature
• Stopping of the unit due to external air temperature below
operating limits
• Management of supplementary/backup heat source
• Domestic hot water production with timer
• Management of 2 areas in radiant heating or cooling mode
Other accessories
• Rubber vibration dampers
DESCRIPTION OF MAIN FUNCTIONALITIES
AND ACCESSORIES
Remote ON/OFF by digital input (as standard)
This function is standard on all units and consists of a remotely
operable contact that allows switching on and off of the
www.swegon.com
5
INDIGO
machine through a signal that can be brought inside the
building or controlled by a BMS system (Building Management
System)
Summer/winter selection by digital input (as standard)
This function is standard on all heat pumps. When the unit is
switched on, it is always necessary to set an operating mode
that can be either heat pump mode or chiller mode. This
remotely operable contact can be used to change the operating
mode even from inside the building and in any case without it
being necessary to directly access the microprocessor control.
Management of supplementary/backup heat source
(accessory)
The controller can manage an external heat source that,
depending on the type of hydraulic connection, can be
additional or used as backup. In the drawing shown below,
for example, the boiler will be a backup to the heat pump.
Activation of the auxiliary heat source takes place when the
external air temperature falls below a threshold that can be set
with the control and when the heat pump alone is insufficient
to meet the load. Activation takes place by closing a clean
contact.
It is also possible to set the unit so that the controller switches
off the compressors when the unit is operating in heat pump
mode and the external air temperature falls below a minimum
set temperature: the controller will stop the compressors before
the unit goes into low pressure alarm, so avoiding having to
manually restart the machine.
This function will be particularly useful when the heat pump
is installed in an area where the external air temperature will
certainly fall below the minimum temperature allowed by the
operating limits (in accordance with the set set point). When
the external air temperature returns above the set threshold
temperature, the unit will automatically resume operation
without it being necessary to do anything.
For units equipped with integrated pump, the pump will
always be kept running so as to prevent ice formation and
ensure correct reading of the temperature and antifreeze
safety probes at all times.
The stopping temperature must be set based on the highest
set point temperature and in accordance with what is allowed
by the operating limits of the machine. A different stopping
temperature from the default temperature can be set, provided
that it is compatible with the operating limits of the unit.
HOT WATER (accessory)
This functionality allows the unit to control the temperature
inside a storage tank for domestic hot water, through a domestic
hot water probe (accessory), and to manage a 3-way valve
(accessory) outside the unit. The priority is always for domestic
hot water production. Activation of this function must be
requested when ordering, but can also be configured later (by
qualified and authorized technical personnel) with a suitable
hydraulic circuit. Request for accessories dedicated to domestic
hot water management when ordering, automatically causes
the “automatic domestic hot water management” function to
be enabled. The heat pump normally operates on the system
to meet the comfort requirements of the building, but when
the temperature of the water inside the tank falls below a set
threshold, the control manages the production of domestic
hot water: if the unit is operating as heat pump for heating,
the 3-way valve will be switched and the set point modified;
but if the unit is producing chilled water for air conditioning,
the control switches the unit to heat pump mode, gives it
the set point for domestic hot water (normally higher than
the set point of the system) and turns the 3-way valve to
the appropriate position. Once the temperature inside the
domestic hot water tank has reached the set value, the unit
automatically returns to producing water for the heating and
air conditioning system.
Description of winter operation
In winter, the following situations occur:
• Demand for heating: the temperature of the water entering
the unit, coming from the system, is lower than expected,
and therefore the control switches on the compressor and
the unit will operate until the set point temperature has
been reached.
When the required temperature has been reached, the
compressor stops and just the circulation pump will remain
running to continue circulating the water in the system.
The unit will wait in this state until the temperature of the
incoming water falls again.
• Demand for domestic hot water: let us suppose the unit is
operating for the production of hot water for the heating
system (45°C) and receives a call for production of high
temperature water from the domestic hot water probe
situated in the storage tank, because the temperature of
the domestic hot water has fallen below the set limit, (for
example, 55°C). Since the domestic hot water is managed
with priority logic, the control will change the set point to
55°C and switch the 3-way valve.
AUTOMATIC MANAGEMENT OF DOMESTIC
6
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
probe situated in the storage tank, because the temperature
of the domestic hot water has fallen below the set limit, (for
example, 55°C). Since the domestic hot water is managed
with priority logic, the control changes the mode of the unit
from chiller to heat pump, sets the set point to 55°C and
switches the 3-way valve.
As soon as the water inside the tank reaches the required
55°C, the control will switch the 3-way valve again to work
on the system and return the set point to 45°C.
If defrosting is necessary, whatever mode the unit is
operating in, the control will force the 3-way valve to be
switched to the system that, given its greater buffering, is
less sensitive to lowering of the temperature.
Description of operation in spring and autumn
In spring and autumn. the heating and air conditioning system
is not active and therefore the heat pump becomes dedicated
solely to domestic hot water production.
The 3-way valve is permanently positioned on the domestic hot
water tank while the pump and heat exchanger will start up
only when called by the domestic hot water probe.
When the domestic hot water set point is reached, the
compressor and the pump will be switched off and the control
will remain on standby until the next call.
To activate this function, the unit must be set on the “only
domestic hot water” function. For further information, please
refer to the wiring diagram supplied with the unit.
Description of summer operation
In summer, the following situations occur:
• Cooling only: the temperature of the water entering the
unit, coming from the system, is higher than expected, and
therefore the control switches on the compressor and the
unit will operate until the set point temperature has been
reached.
Then the compressor stops and just the circulation pump
will remain running to continue circulating the water in the
system. The unit will wait in this state until the temperature
of the incoming water rises again.
• Demand for domestic hot water: let us suppose the unit
is operating for the production of chilled water for the air
conditioning system (7°C) and receives a call for production
of high temperature water from the domestic hot water
Swegon reserves the right to alter specifications.
As soon as the water inside the tank reaches the required
55°C, the control will switch the unit to chiller mode again,
turn the 3-way valve to work on the system and return the
set point to 7°C.
Domestic hot water probe (accessory)
For domestic hot water production, the controller requires this
accessory: it is a temperature probe with 6 m of cable and is to
be placed in a special well of the tank for domestic hot water
production. For correct positioning, please read the section
entitled ”How to install a heat pump”. Fitted as standard on /
HWS version units.
Domestic hot water production with timer (accessory)
With this accessory fitted, it will be possible to associate two
different temperatures for domestic hot water with different
times of the day: Normal and Saving. This allows the user to
decide at what times of day the heat pump must concentrate
domestic hot water production, while however still maintaining
the Saving minimum temperature level managed with priority
logic.
For example, by concentrating water production at Normal
temperature during night hours, the lowest electricity rates
will be used and production of hot water before the hours of
highest consumption will be guaranteed.
In any case, with this system, the unit never stops controlling
the temperature inside the domestic hot water tank, and if hot
water is occasionally used outside normal hours, the unit will
give priority to domestic hot water production until the water
in the tank is back at the Saving set point temperature.
Filling unit with pressure gauge (accessory)
This accessory allows automatic filling of the hydraulic system
and control of correct operating pressure, which can always
be checked on the pressure gauge, and continuously maintains
this pressure by replenishing with water if necessary.
www.swegon.com
7
INDIGO
Anti-freeze heater (accessory)
This accessory consists of heaters inserted on the user-side heat
exchanger, on the pump (depending on the configuration of
the machine) to prevent damage to the hydraulic components
due to ice formation during periods when the machine is
stopped.
The power of the anti-freeze heaters is only a few tens of
watts depending on the unit model, namely what is sufficient
to prevent breakage of components. The control monitors
(even when the unit is on standby) the heat exchanger outlet
probe and when this measures a water temperature below or
equal to 5°C (or 2°C below the set point temperature, with
differential of 1°C), it switches on the pump (if present) and
starts the anti-freeze heater.
If the temperature of the outgoing water reaches 4°C (or 3°C
below the set point) the anti-freeze alarm will also be triggered;
this stops the compressor while keeping the heaters active.
technical compartment.
Set point compensation depending on external
temperature (accessory)
The controller allows the set point of the unit to be changed
during both chiller operation and heat pump operation
depending on external temperature. The compensation can be
positive or negative: with positive compensation, as the external
air temperature rises, the summer set point temperature will
also rise, whereas with negative compensation, as the air
temperature rises, the set point temperature falls.
If the unit is also used for the production of domestic hot
water, the climate control curve will have no effect on the set
point temperature of the domestic hot water.
Unless otherwise specified when ordering, the standard
programming has negative compensation (for both set points)
with the values indicated in the diagrams shown below. All
settings can be changed directly by the control.
Double set point by digital input (accessory)
The double set point allows two different working temperatures
to be set for operation in heating mode and in cooling mode.
The set point temperatures must be specified when ordering.
The set point can be changed from the keyboard or the digital
input.
RS485 serial interface (accessory)
The ever increasing spread of home automation and BMS
systems (Building Management System) has led to the need
to integrate all system components under a single supervision
system. To meet this requirement, the unit can be fitted with
an RS485 serial card.
Remote-controlled user terminal panel (accessory)
This accessory consists of a replica of the panel of the remotely
operable control, from which it is possible to completely
configure the unit and display all its parameters on the display.
The screens are accessed by entering passwords that enable
the various modification levels.
Maximum and minimum voltage relay (accessory)
This device carries out continuous control of the supply voltage
of the unit and checks that it is always within an allowable
range. If the voltage value stabilizes above or below this range,
the device will stop the unit to prevent damage to the electric
motors. This device will carry out phase sequence control.
EC fans (accessory)
The units can be combined with the innovative direct current
EC axial fans (Electronically Commutated) with electronically
commutated brushless motor.
These motors with permanent magnet rotor guarantee very
high efficiency levels for every operating condition and allow a
15% saving per fan to be obtained.
Also, through a 0-10V analogue signal sent to each fan, the
microprocessor allows condensation control by continuous
control of air flow as the external air temperature changes and
a consequent reduction in noise emission.
CONDENSATION/EVAPORATION CONTROL WITH FAN
SPEED GOVERNOR (as standard)
The microprocessor control of the unit controls all the operating
parameters of the unit and carries out continuous fan speed
control through a speed governor, in order to optimize the
operating conditions and efficiency of the unit.
3-way valve for domestic hot water (accessory)
This is a three-way on/off valve that, combined with the
automatic domestic hot water management function, allows
the machine to manage two separate circuits for comfort and
domestic hot water production, by automatically switching
from one to the other depending on the needs of the system.
The 3-way valve for domestic hot water must be installed in a
8
This control also has the effect of reducing the noise level of
the unit, and in fact, the typical conditions under which the
control will be modulating the speed of the fans are those of
the night, spring and autumn. This ensures that, whenever
there is a chance, the machine will reduce the speed of the
fans, and therefore the noise, to the minimum.
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
WATER FILTER (accessory)
The purpose of the water filter, positioned at the water inlet
of the unit, is to prevent sludge, processing residues and so
on, from blocking the heat exchangers of the unit. There must
obligatorily be a filter with 0.4 or 0.5 mm mesh at the inlet of
each circuit: source, user and recovery. Absence of the filter will
automatically invalidate the warranty.
The following filters are supplied as accessory:
Swegon reserves the right to alter specifications.
www.swegon.com
9
INDIGO
HEAT PUMP INSTALLATION TIPS
Using a heat pump for air conditioning, heating and production
of domestic hot water has been an established practice for
years and has undoubted advantages.
By its nature, the heat pump is strongly affected by the
characteristics of the system, the selected operating conditions
and the choices made for its installation and connection.
Below are some tips that increase the efficiency and reliability
of the system:
CHOOSING THE CAPACITY OF THE HEAT PUMPS
CORRECTLY
The heat pump must always be selected in excess, guaranteeing
to exceed the maximum load besides the project load and
possibly being able to operate even at lower temperatures than
those of the project.
An integration or backup must also be contemplated, which can
replace or help the heat pump in harsher operating conditions.
CHOOSING THE PROPER OPERATING TEMPERATURES
Heat pumps guarantee maximum efficiency, and therefore the
economic advantage in using them, since the design of the
system is aimed at choosing high water temperatures for air
conditioning and low ones for heating.
As can be seen from the example diagrams above, even
a small variation in the temperature leads to an immediate
improvement in the EER and COP.
CHOOSING THE PROPER TEMPERATURE FOR THE
DOMESTIC WATER
For the same reasons in the previous point, the choice of the
tank for the production of domestic water is to be made so
10
as to maintain the set-point for the production of hot water
as low as possible. This will allow the efficiency of the system
to be increased and also maximise the operating limits of the
unit, thereby ensuring the production of domestic water even
for very low temperatures.
In general it is not advisable to set the unit set-points the limit
of the permissible operating conditions, especially in the heat
pump mode, for the following reasons:
• Setting the water set-point at the maximum temperature
limit reduces the operating limits of the unit.
• The water filter must always be present in the water inlet
of the unit otherwise the warranty will be rendered nul
and void. With the passage of time the filter element can
become dirty and this will increase the pressure drops and
consequently reduce the water flow. Lowering the water
flow will lead to an increase in the thermal gradient of
the utility exchanger that can go from 4/5°C to 9/10°C,
however, since the unit controls the set-point on the return
temperature, this may involve the intervention of the safety
devices if the unit operates at the limits of the allowed
operating conditions.
• If the heat pump is connected directly (without intermediate
circuit breakers) to a hydraulic circuit divided into areas,
the pressure drop of the circuit may increase on closure of
one or more areas, thereby leading to a decrease of flow
and then to a increase of the thermal head to the heat
exchanger. As before, if the heat pump is set to operate at
the permissable limits of the operating conditions, this can
lead to an intervention of the safety devices.
• Depending on the position chosen for the installation of
the unit.
• In summer, the unit will be subject to solar radiation.
Assuming the air is at 35°, the coil (copper and aluminum
and therefore excellent conductor) will be very hot. When
you switch the unit on, even with the fans stopped, the
evaporation will be very high, thereby leading to the definite
intervention of the high pressure switch.
• Air recirculation can generate an environmental micro with
a temperature less than 4/5°, leading the unit to work out
of the limits.
• The clearances are very important, the upstream or
downstream obstruction of the fan creates pressure drops
that reduce the air flow. This reduction can generate a
reduction in the operating temperatures. This decrease may
lead the unit out of the operating limits.
• Air in the circuit. Air in the system, even if thoroughly
vented, creates a loss of heat transfer coefficient with the
consequent possibility of the high pressure safety devices
intervening.
CAREFUL SELECTION OF THE DOMESTIC WATER TANK
When you want to use a heat pump for water production the
unit must always be connected to an adequately selected tank
that is dedicated to the production of domestic hot water. In
fact, the heat pumps cannot produce the water instantly and
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
the plate exchanger must also work with a closed water circuit
to prevent scale from forming on the inside.
The choice of the tank for the domestic water must be done
very carefully because if it is not adequately sized, the system
may not be reliable. For this reason, it is strongly recommended
to choose a tank that allows the heat pump to work on the
technical water and not on a coil. The combination of the
heat pumps with coils is in fact problematic because of the
difficulty in sizing the coil surface that must always be done in
the worst conditions, that is in summer conditions. Units can
only be combined with coil tanks for storage provided directly
by BlueBox.
POSITIONING THE DOMESTIC WATER OPERATING
PROBE CORRECTLY
For the domestic hot water and HWS control, the units use a
supplied temperature probe, which must be installed properly:
the tank must have a well in the upper part, which is long
enough to almost reach the centre of the tank. The probe
supplied with the unit must be inserted in the well with
conductive paste in order to ensure an accurate reading of the
water temperature. An incorrect temperature reading, caused
by an unsuitable positioning or little conductive paste, could
lead to the safety devices being triggered or the unit blocking.
SELECTING THE 3-WAY DOMESTIC WATER VALVE
CORRECTLY
If you use the automatic control function of the domestic hot
water, a 3-way valve with power supply 230/1~/50 is required
together with a diameter of 1/4 of an inch greater than the
diameter of the unit pipe. This valve must guarantee adequate
speed switching and it is mandatory for the flow to never be
cancelled during switching, thereby always allowing a flow.
start-up the entire system at once. In this case it is advisable to
carry out its start-up per area, namely adding a few sections
of the system at a time just as those already connected start
to heat up or with the use of an additional electrical heater to
compensate for the increased heating requirements.
ALWAYS GUARANTEEING THE MINIMUM WATER
CONTENT
If the unit is connected to a hydraulic system split into areas,
such as those with radiant panels, with them being controlled
via solenoid valves on the manifold (heads), it is mandatory to
ensure the presence of at least five litres of water for every kW
of heat output of the unit in the most unfavorable condition,
that is with a single open area. This is necessary to prevent the
condition whereby almost all the heads are closed and the heat
pump has to work with an extremely small volume of water. In
this case, during the defrosting cycle, the safety devices may
intervene due to excessively cold water.
STARTING-UP THE UNIT WITH WATER THAT IS TOO
HOT OR TOO COLD
The safety devices may intervene if the unit is started-up in
winter with a very cold water temperature and out of the
operating limits of the unit. The system is brought up to
its nominal speed by simply reducing the thermal load by
sectioning part of the system. When the water temperature
of the partial system will be within the operating range, the
part of the system that was previously sectioned can then be
connected.
POSITIONING THE COLD WATER TOP-UP CORRECTLY
Depending on the type of tank used for the production of
domestic hot water, there may be a connection for the water
top-up from the mains (cold). It is very important for this
connection to not be too close to the return pipe to the heat
pump. In fact this could cause the cold water inlet from the
mains cool the return water to the heat pump and this sudden
drop in temperature of the inlet water to the ”hot” exchanger
may lead to the safety devices intervening.
Even in this case using an instantaneous producer for the
domestic water combined with a tank that allows the heat
pump to work on the technical water allows this problem to
be avoided.
CONSIDERING THE MOISTURE CONTENT IN THE WALLS
AND SLABS IN THE BUILDING
Large amounts of water are used to construct masonry works
and screeds, to which one can add the rain absorbed by the
unfinished works. All the moisture absorbed by the building
evaporates very slowly.
Due to the high moisture content present in the entire building,
in the first two periods of heating the heating requirements of
the building will be increased.
If the heat pump is adequately sized to overcome the nominal
heat load of the building and the first system start-up is in cold
weather, the heating capacity output may be insufficient to
Swegon reserves the right to alter specifications.
www.swegon.com
11
INDIGO
TECHNICAL SPECIFICATIONS FOR INDIGO
Unit size
INDIGO
Cooling (A35°C; W7°C)
Nominal refrigeration capacity
Total absorbed power
EER
Min/max refrigeration capacity
Cooling (A35°C; W18°C)
Nominal refrigeration capacity
Total absorbed power
EER
Heating (A7°C; W45°C)
Nominal heating capacity
Total absorbed power
COP
Min/max heating capacity
Heating (A7°C; W35°C)
Nominal heating capacity
Total absorbed power
COP
Compressors
Type
Quantity/Refrigerant circuits
Refrigerant charge
Fans
Type
Quantity
Air flow
User-side heat exchanger
Type
Quantity
Water flow rate
Head loss
Hydraulic module
Available discharge head of pump
Noise levels
Sound power level (basic unit)
Sound pressure level (basic unit)
Dimensions and weights of basic unit
Length
Depth
Height
Operating weight of basic unit
14
18
14,0
4,9
2,83
5,1 / 15,0
18,0
6,4
2,83
6,1 / 18,4
(1)
(1),(2)
(1)
(1)
kW
kW
(3)
(3),(2)
(3)
kW
kW
18,9
5,5
3,42
24,6
7,1
3,48
(4)
(4),(2)
(4)
(4)
kW
kW
16,2
5,0
3,25
5,4 / 18,7
20,9
6,5
3,22
6,8 / 23,2
16,8
4,2
4,05
21,5
5,4
3,98
n° / n°
kg
Scroll
1/1
9
Scroll
1/1
12
n°
m3/h
Assiali
1
6.000
Assiali
1
8.000
n°
l/h
kPa
A piastre
1
2.419
19
A piastre
1
3.112
28
kPa
94
80
dB(A)
dB(A)
68
40
70
42
mm
mm
mm
kg
1.600
1.300
1.800
360
1.600
1.300
1.800
380
kW
kW
(5)
(5),(2)
(5)
kW
kW
(1)
(6)
All performance data are expressed in accordance with EN 14511:2011
(1) External air temperature 35°C; evaporator inlet-outlet water temperature 12/7°C; compressor frequency 90 rps
(2) The total power is given by the sum of the power absorbed by the compressors and by the fans
(3) External air temperature 35°C; evaporator inlet-outlet water temperature 23/18°C; compressor frequency 90 rps
(4) External air temperature 7°C DB, RH 87%; condenser inlet-outlet water temperature 40-45°C; compressor frequency 90 rps
(5) External air temperature 7°C DB, RH 87%; condenser inlet-outlet water temperature 30-35°C; compressor frequency 90 rps
(6) Sound pressure levels measured at a distance of 10 metres from the unit in free field and directivity factor Q=2, compressor frequency 90 rps
(8) Sound power levels calculated according to ISO 3744.
ELECTRICAL SPECIFICATIONS FOR INDIGO
Unit size
Standard power supply
Power supply for auxiliary circuits
Maximum absorbed power of basic unit
Maximum absorbed current of basic unit
Absorbed power of pump (min / max)
Nominal power of axial fan
Maximum power of radial fan (/RF version)
12
Swegon reserves the right to alter specifications.
(V/ph/Hz)
(V/ph/Hz)
kW
A
kW
kW
kW
8
10
400/3N~/50
230/1~/50
9,5
19,4
0,015 / 0,336
0,3
1,42
400/3N~/50
230/1~/50
12,5
23,0
0,015 / 0,336
0,5
1,76
www.swegon.com
INDIGO
TECHNICAL SPECIFICATIONS FOR RADIAL FAN (only for /RF version)
Available discharge head
25 Pa
50 Pa
75 Pa
100 Pa
125 Pa
150 Pa
200 Pa
250 Pa
300 Pa
400 Pa
Unit Size
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
Absorbed power
Sound power level
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
kW
dB(A)
14
18
0,27
70
0,33
71
0,38
72
0,45
73
0,52
73
0,59
75
0,73
77
0,90
79
1,07
81
1,42
83
0,44
76
0,50
77
0,58
77
0,66
77
0,74
78
0,81
78
1,01
79
1,18
80
1,36
81
1,76
84
Values related to nominal flow rate
Absorbed power: power absorbed by radial fan alone
Sound power level: sound power level of radial fan alone
Swegon reserves the right to alter specifications.
www.swegon.com
13
INDIGO
DIAGRAMS OF PUMPS
140
STATIC DISCHARGE HEAD [kPa]
120
100
80
60
40
20
0
0
500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
4.500
5.000
FLOW RATE [l/h]
DIAGRAMS OF HEAT EXCHANGERS
100
90
14
TOTAL HEAD LOSSES [kPa]
80
18
70
60
50
40
30
20
10
0
2000
3000
4000
5000
6000
7000
FLOW RATE [l/h]
14
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
User side outlet water temperature (°C)
OPERATING LIMITS
COOLING
25
20
15
10
5

0
-5
-10
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
User side outlet water temperature (°C)
External air temperature (°C)
HEATING
65
60
55
50
45
40
35
30
25
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
35
40
45
50
External air temperature (°C)
User side outlet water temperature (°C)
RECOVERY
(only for /HWS unit)
60
55
50
45
40
35
30
25
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
External air temperature (°C)
NOTES:
The thermal gradient at the user-side heat exchanger must be between 3°C and 6°C
In some operating conditions (for example, when the unit is working close to opera : in this area, the unit can work only with glycol water on evaporator side
ting limits) the unit may occasionally work with forced capacity reduction to limit the
In heating mode and in recovery mode, the inlet temperature of the water in the unit
discharge temperature of the compressor and so protect its integrity.
cannot be lower than 25°C.
Swegon reserves the right to alter specifications.
www.swegon.com
15
INDIGO
COOLING PERFORMANCE 30 Hz
To
Model
14
18
[°C]
5
6
7
8
15
18
5
6
7
8
15
18
External air temperature [°C]
25
30
35
40
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
5,4
5,6
5,7
5,9
7,3
7,9
6,4
6,6
6,8
7,0
8,6
9,4
2,5
2,5
2,5
2,5
2,5
2,5
1,7
1,7
1,7
1,8
1,8
1,8
2,15
2,21
2,28
2,34
2,89
3,20
3,71
3,80
3,92
4,02
4,77
5,16
5,1
5,3
5,4
5,6
6,9
7,5
6,1
6,3
6,5
6,7
8,2
8,9
2,7
2,7
2,7
2,7
2,7
2,7
1,9
1,9
1,9
1,9
2,0
2,0
1,88
1,94
1,99
2,05
2,53
2,78
3,22
3,31
3,41
3,49
4,14
4,45
4,8
5,0
5,1
5,3
6,5
7,1
5,7
5,9
6,1
6,3
7,7
8,4
3,0
3,0
3,0
3,0
3,0
3,0
2,0
2,1
2,1
2,1
2,2
2,2
1,63
1,67
1,72
1,76
2,17
2,38
2,79
2,86
2,94
3,01
3,57
3,83
4,5
4,6
4,8
4,9
6,1
6,6
5,3
5,5
5,6
5,8
7,2
7,8
3,2
3,2
3,3
3,3
3,3
3,3
2,2
2,2
2,2
2,3
2,4
2,4
1,38
1,42
1,46
1,50
1,83
2,00
2,38
2,45
2,51
2,58
3,05
3,28
COOLING PERFORMANCE 60 Hz
To
Model
14
18
[°C]
5
6
7
8
15
18
5
6
7
8
15
18
External air temperature [°C]
25
30
35
40
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
10,6
10,9
11,3
11,6
14,2
15,5
13,5
13,9
14,4
14,8
18,2
19,8
2,6
2,6
2,6
2,7
2,6
2,6
3,1
3,1
3,2
3,2
3,3
3,3
4,03
4,14
4,25
4,38
5,38
5,91
4,31
4,43
4,53
4,65
5,53
5,94
10,0
10,3
10,7
11,0
13,5
14,6
12,8
13,2
13,6
14,1
17,2
18,8
2,8
2,9
2,9
2,9
2,9
2,9
3,4
3,5
3,5
3,5
3,6
3,7
3,53
3,62
3,72
3,83
4,67
5,12
3,72
3,82
3,91
4,02
4,75
5,09
9,4
9,7
10,0
10,3
12,6
13,8
12,0
12,4
12,8
13,2
16,2
17,7
3,1
3,1
3,1
3,1
3,2
3,1
3,8
3,8
3,8
3,8
4,0
4,1
3,04
3,12
3,21
3,29
4,00
4,38
3,19
3,28
3,36
3,44
4,06
4,36
8,7
9,0
9,3
9,6
11,8
12,9
11,2
11,5
11,9
12,3
15,1
16,5
3,4
3,4
3,4
3,4
3,5
3,5
4,1
4,2
4,2
4,2
4,4
4,4
2,58
2,65
2,72
2,80
3,38
3,68
2,71
2,78
2,85
2,93
3,45
3,71
The indicated data meet EN14511:2011
Pt: heating capacity [kW]
Pat: total absorbed power [kW]
Ta: external dry bulb air temperature [°C]
RH: relative humidity [%]
16
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
COOLING PERFORMANCE 90 Hz
To
Model
14
18
[°C]
5
6
7
8
15
18
5
6
7
8
15
18
External air temperature [°C]
25
30
35
40
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
15,0
15,5
15,9
16,4
19,9
21,5
19,1
19,7
20,2
20,8
25,3
27,6
4,1
4,2
4,2
4,2
4,5
4,6
5,0
5,1
5,1
5,1
5,4
5,5
3,63
3,71
3,79
3,87
4,45
4,70
3,79
3,88
3,96
4,05
4,67
4,97
14,1
14,6
15,0
15,4
18,7
20,3
18,1
18,6
19,2
19,7
24,0
26,2
4,5
4,6
4,6
4,6
4,9
5,0
5,5
5,6
5,6
5,6
6,0
6,1
3,11
3,19
3,25
3,32
3,83
4,05
3,28
3,35
3,42
3,49
4,03
4,28
13,2
13,6
14,0
14,4
17,5
19,0
17,0
17,5
18,0
18,5
22,6
24,7
5,0
5,0
5,0
5,1
5,4
5,5
6,0
6,1
6,1
6,2
6,6
6,7
2,65
2,71
2,77
2,83
3,27
3,46
2,81
2,87
2,93
2,99
3,45
3,66
12,1
12,5
12,9
13,3
16,2
17,6
15,8
16,3
16,8
17,3
21,2
23,2
5,4
5,5
5,5
5,6
5,8
6,0
6,6
6,7
6,7
6,8
7,2
7,4
2,24
2,29
2,34
2,39
2,77
2,94
2,39
2,45
2,49
2,55
2,94
3,12
COOLING PERFORMANCE 120 Hz
To
Model
14
18
[°C]
5
6
7
8
15
18
5
6
7
8
15
18
External air temperature [°C]
25
30
35
40
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
Pf
Pa
EER
16,4
16,8
17,3
17,8
21,3
23,0
20,3
20,8
21,4
22,0
26,3
28,2
5,7
5,7
5,8
5,8
6,2
6,4
7,3
7,4
7,4
7,5
8,1
8,4
2,88
2,94
2,99
3,05
3,41
3,56
2,78
2,83
2,88
2,92
3,24
3,38
15,3
15,7
16,2
16,6
19,9
21,5
18,9
19,4
20,0
20,5
24,5
26,3
6,2
6,3
6,3
6,4
6,8
7,0
8,0
8,0
8,1
8,2
8,8
9,1
2,47
2,51
2,56
2,61
2,92
3,06
2,37
2,41
2,46
2,50
2,77
2,89
14,1
14,5
15,0
15,4
18,5
19,9
17,4
17,9
18,4
18,9
22,7
24,4
6,8
6,9
6,9
7,0
7,4
7,7
8,7
8,8
8,9
9,0
9,6
10,0
2,08
2,12
2,16
2,20
2,48
2,60
2,01
2,04
2,08
2,11
2,35
2,45
12,9
13,3
13,7
14,1
17,0
18,4
15,9
16,4
16,8
17,3
20,8
22,4
7,4
7,5
7,6
7,6
8,1
8,4
9,5
9,6
9,7
9,8
10,5
10,9
1,74
1,77
1,81
1,85
2,09
2,19
1,67
1,71
1,74
1,77
1,97
2,06
The indicated data meet EN14511:2011
Pt: heating capacity [kW]
Pat: total absorbed power [kW]
Ta: external dry bulb air temperature [°C]
RH: relative humidity [%]
Swegon reserves the right to alter specifications.
www.swegon.com
17
INDIGO
HEATING PERFORMANCE 30 Hz
Model
14
18
Ta
HR
[°C]
%
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
90
90
90
89
89
88
88
87
87
86
86
86
90
90
90
89
89
88
88
87
87
86
86
86
Condenser inlet water temperature [°C]
30/35
35/40
40/45
50/55
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
2,6
3,1
3,6
3,9
4,5
4,7
5,0
5,4
5,7
6,1
6,4
7,0
3,2
3,9
4,5
4,9
5,7
6,0
6,3
6,8
7,2
7,7
8,1
8,8
1,4
1,4
1,4
1,4
1,5
1,5
1,5
1,5
1,5
1,5
1,5
1,5
1,7
1,7
1,7
1,7
1,8
1,8
1,8
1,8
1,8
1,8
1,8
1,8
1,88
2,19
2,51
2,70
3,07
3,21
3,36
3,59
3,78
4,08
4,27
4,67
1,94
2,28
2,62
2,82
3,19
3,34
3,50
3,76
3,93
4,24
4,43
4,81
2,6
3,0
3,5
3,8
4,4
4,6
4,9
5,3
5,6
6,0
6,3
6,8
3,2
3,8
4,5
4,9
5,6
5,9
6,2
6,7
7,0
7,6
8,0
8,6
1,5
1,5
1,6
1,6
1,6
1,6
1,6
1,6
1,6
1,6
1,6
1,6
1,8
1,9
1,9
1,9
1,9
2,0
2,0
2,0
2,0
2,0
2,0
2,0
1,72
2,00
2,28
2,46
2,78
2,90
3,05
3,25
3,42
3,68
3,86
4,19
1,78
2,07
2,37
2,56
2,88
3,01
3,16
3,36
3,54
3,80
3,96
4,28
*
3,0
3,5
3,8
4,3
4,5
4,8
5,1
5,4
5,8
6,1
6,6
*
3,8
4,4
4,8
5,5
5,8
6,1
6,5
6,9
7,4
7,7
8,4
*
1,7
1,7
1,7
1,7
1,7
1,7
1,7
1,8
1,8
1,8
1,8
*
2,0
2,1
2,1
2,1
2,1
2,1
2,1
2,2
2,2
2,2
2,2
*
1,81
2,07
2,22
2,50
2,61
2,73
2,93
3,07
3,29
3,46
3,74
*
1,89
2,15
2,31
2,59
2,71
2,84
3,02
3,17
3,38
3,54
3,81
*
*
*
3,6
4,1
4,3
4,5
4,8
5,1
5,5
5,7
6,2
*
*
*
4,6
5,2
5,5
5,7
6,1
6,4
6,9
7,3
7,8
*
*
*
2,0
2,0
2,1
2,1
2,1
2,1
2,1
2,1
2,1
*
*
*
2,5
2,5
2,5
2,5
2,6
2,6
2,6
2,6
2,6
*
*
*
1,82
2,02
2,10
2,20
2,32
2,43
2,58
2,72
2,91
*
*
*
1,87
2,08
2,17
2,26
2,40
2,51
2,66
2,79
2,96
HEATING PERFORMANCE 60 Hz
Model
14
18
Ta
HR
[°C]
%
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
90
90
90
89
89
88
88
87
87
86
86
86
90
90
90
89
89
88
88
87
87
86
86
86
Condenser inlet water temperature [°C]
30/35
35/40
40/45
50/55
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
5,4
6,4
7,5
8,2
9,4
9,9
10,5
11,3
11,9
12,8
13,4
14,6
6,8
8,2
9,6
10,5
12,1
12,7
13,5
14,5
15,2
16,4
17,3
18,8
2,4
2,5
2,5
2,6
2,6
2,6
2,7
2,7
2,7
2,7
2,7
2,7
3,0
3,1
3,1
3,2
3,3
3,3
3,3
3,3
3,3
3,3
3,3
3,4
2,23
2,59
2,96
3,19
3,59
3,75
3,94
4,21
4,42
4,76
5,00
5,43
2,28
2,66
3,05
3,30
3,72
3,90
4,09
4,37
4,58
4,92
5,17
5,59
5,4
6,4
7,4
8,1
9,2
9,7
10,3
11,0
11,6
12,5
13,1
14,2
6,9
8,2
9,5
10,4
11,9
12,5
13,2
14,2
14,9
16,1
16,9
18,3
2,7
2,7
2,8
2,8
2,9
2,9
2,9
2,9
2,9
2,9
2,9
2,9
3,3
3,4
3,5
3,5
3,6
3,6
3,6
3,6
3,7
3,7
3,7
3,7
2,01
2,33
2,66
2,87
3,23
3,37
3,53
3,78
3,96
4,26
4,47
4,85
2,07
2,41
2,75
2,97
3,34
3,49
3,66
3,90
4,08
4,37
4,59
4,94
*
6,3
7,3
7,9
9,1
9,5
10,0
10,7
11,3
12,2
12,8
13,8
*
8,1
9,4
10,2
11,6
12,2
12,9
13,8
14,5
15,6
16,5
17,8
*
3,0
3,1
3,1
3,1
3,2
3,2
3,2
3,2
3,2
3,2
3,2
*
3,7
3,8
3,8
3,9
3,9
4,0
4,0
4,0
4,0
4,1
4,1
*
2,10
2,39
2,57
2,89
3,02
3,16
3,36
3,53
3,79
3,98
4,31
*
2,17
2,47
2,66
2,99
3,11
3,26
3,46
3,62
3,86
4,06
4,36
*
*
*
7,7
8,7
9,1
9,5
10,2
10,7
11,5
12,1
12,9
*
*
*
9,8
11,1
11,6
12,2
13,0
13,7
14,6
15,4
16,6
*
*
*
3,7
3,8
3,8
3,8
3,9
3,9
3,9
3,9
3,9
*
*
*
4,6
4,7
4,7
4,8
4,8
4,8
4,9
4,9
4,9
*
*
*
2,08
2,30
2,40
2,49
2,64
2,76
2,94
3,08
3,29
*
*
*
2,12
2,36
2,45
2,56
2,71
2,83
3,01
3,15
3,36
The indicated data meet EN14511:2011
Pt: heating capacity [kW]
Pat: total absorbed power [kW]
Ta: external dry bulb air temperature [°C]
RH: relative humidity [%]
18
Swegon reserves the right to alter specifications.
www.swegon.com
INDIGO
HEATING PERFORMANCE 90 Hz
Model
14
18
Ta
HR
[°C]
%
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
90
90
90
89
89
88
88
87
87
86
86
86
90
90
90
89
89
88
88
87
87
86
86
86
Condenser inlet water temperature [°C]
30/35
35/40
40/45
50/55
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
7,8
9,3
10,8
11,7
13,4
14,1
14,9
16,0
16,8
18,1
19,1
20,5
8,2
10,7
13,2
14,7
17,1
18,0
19,0
20,5
21,5
23,0
24,3
26,0
3,7
3,8
3,9
3,9
4,0
4,0
4,1
4,1
4,1
4,1
4,1
4,2
4,6
4,7
4,8
4,9
5,0
5,0
5,1
5,1
5,2
5,2
5,2
5,3
2,12
2,46
2,78
2,98
3,35
3,50
3,66
3,90
4,09
4,37
4,60
4,92
1,77
2,27
2,74
2,99
3,41
3,57
3,73
3,98
4,15
4,42
4,63
4,96
7,9
9,3
10,7
11,7
13,3
14,0
14,7
15,8
16,5
17,8
18,7
20,1
8,3
10,8
13,2
14,6
16,9
17,8
18,8
20,2
21,2
22,7
23,8
25,6
4,0
4,1
4,3
4,3
4,4
4,4
4,5
4,5
4,5
4,6
4,6
4,6
5,1
5,2
5,3
5,4
5,5
5,5
5,6
5,6
5,7
5,7
5,8
5,8
1,96
2,24
2,51
2,69
3,02
3,15
3,28
3,49
3,65
3,90
4,07
4,36
1,62
2,07
2,48
2,71
3,07
3,21
3,36
3,57
3,72
3,96
4,13
4,42
*
9,3
10,7
11,5
13,1
13,8
14,5
15,5
16,2
17,4
18,3
19,7
*
10,9
13,2
14,6
16,8
17,7
18,6
19,9
20,9
22,3
23,4
25,2
*
4,6
4,7
4,8
4,9
4,9
4,9
5,0
5,0
5,0
5,0
5,1
*
5,8
5,9
6,0
6,1
6,1
6,2
6,2
6,3
6,3
6,3
6,4
*
2,03
2,27
2,43
2,71
2,82
2,94
3,11
3,26
3,46
3,62
3,88
*
1,88
2,24
2,45
2,77
2,89
3,02
3,21
3,34
3,54
3,69
3,94
*
*
*
11,4
12,8
13,3
14,0
14,9
15,6
16,6
17,4
18,7
*
*
*
14,7
16,7
17,4
18,2
19,4
20,3
21,6
22,6
24,2
*
*
*
5,8
5,9
5,9
6,0
6,0
6,1
6,1
6,1
6,2
*
*
*
7,3
7,4
7,4
7,5
7,5
7,6
7,7
7,7
7,8
*
*
*
1,97
2,17
2,25
2,34
2,47
2,57
2,72
2,84
3,02
*
*
*
2,01
2,26
2,34
2,44
2,58
2,67
2,82
2,93
3,12
HEATING PERFORMANCE 120 Hz
Model
14
18
Ta
HR
[°C]
%
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
-20
-15
-10
-7
-2
0
2
5
7
10
12
15
90
90
90
89
89
88
88
87
87
86
86
86
90
90
90
89
89
88
88
87
87
86
86
86
Condenser inlet water temperature [°C]
30/35
35/40
40/45
50/55
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
Pt
Pa
COP
9,0
10,7
12,3
13,4
15,3
16,0
16,9
18,0
19,0
20,3
21,4
22,9
11,5
13,5
15,5
16,8
19,0
20,0
21,0
22,4
23,6
25,3
26,6
28,5
4,6
4,7
4,8
4,9
5,0
5,1
5,1
5,2
5,2
5,2
5,3
5,3
5,9
6,0
6,1
6,2
6,4
6,4
6,5
6,5
6,6
6,6
6,7
6,7
1,97
2,27
2,55
2,72
3,04
3,15
3,30
3,49
3,66
3,89
4,07
4,33
1,95
2,24
2,52
2,69
3,00
3,12
3,26
3,44
3,59
3,81
3,99
4,24
9,2
10,8
12,4
13,4
15,2
15,9
16,8
17,9
18,8
20,1
21,2
22,6
11,7
13,7
15,6
16,8
19,0
19,9
20,9
22,3
23,5
25,0
26,3
28,1
5,0
5,2
5,3
5,4
5,6
5,6
5,6
5,7
5,7
5,8
5,8
5,8
6,6
6,7
6,8
6,9
7,0
7,1
7,1
7,2
7,2
7,3
7,4
7,4
1,82
2,08
2,32
2,47
2,74
2,85
2,98
3,14
3,29
3,48
3,64
3,88
1,79
2,04
2,29
2,45
2,71
2,82
2,94
3,10
3,24
3,43
3,58
3,80
*
10,9
12,4
13,4
15,2
15,8
16,6
17,7
18,6
19,8
20,8
22,2
*
13,8
15,7
16,8
18,9
19,8
20,8
22,1
23,2
24,7
25,9
27,7
*
5,7
5,9
6,0
6,1
6,2
6,2
6,3
6,3
6,4
6,4
6,4
*
7,4
7,5
7,6
7,7
7,8
7,9
7,9
8,0
8,1
8,1
8,2
*
1,89
2,11
2,24
2,47
2,57
2,67
2,83
2,95
3,11
3,25
3,45
*
1,86
2,08
2,21
2,44
2,54
2,64
2,78
2,91
3,06
3,20
3,39
*
*
*
13,5
15,0
15,6
16,3
17,3
18,1
19,2
20,1
21,4
*
*
*
16,9
18,8
19,6
20,4
21,6
22,5
24,0
25,1
26,7
*
*
*
7,3
7,5
7,5
7,6
7,7
7,7
7,8
7,8
7,9
*
*
*
9,3
9,5
9,5
9,6
9,7
9,7
9,8
9,9
10,0
*
*
*
1,84
2,01
2,07
2,15
2,26
2,35
2,48
2,58
2,73
*
*
*
1,82
1,99
2,06
2,13
2,24
2,32
2,45
2,55
2,68
The indicated data meet EN14511:2011
Pt: heating capacity [kW]
Pat: total absorbed power [kW]
Ta: external dry bulb air temperature [°C]
RH: relative humidity [%]
Swegon reserves the right to alter specifications.
www.swegon.com
19
INDIGO
NOISE LEVELS - INDIGO
Octave bands [dB]
MODEL
63 Hz
Lw
Lp
125 Hz
Lw
250 Hz
Lp
Lw
500 Hz
Lp
Lw
Lp
1000 Hz
2000 Hz
4000 Hz
8000 Hz
Lw
Lw
Lw
Lw
Lp
Lp
Lp
Total
[dB(A)]
Lp
Lw
Lp
14
69
41
18
71
43
Lw: sound power values in accordance with EN12102 at A7/W45
Lp: sound pressure values in accordance with EN12102 at A7/W45
The noise data have been provided according to UNI EN 12102 that lays down the requirements for determining, with standardized method, the sound power level emitted to the
outside by conditioners, heat pumps, and liquid chillers with electric compressors, used for space heating and/or cooling. The measurements were made according to EN 3744.
The noise values may vary considerably, depending on the installation and the operating conditions.
DIMENSIONAL DIAGRAMS OF INDIGO
Dimensional diagram INDIGO RD 14-18
1300
Ep
SD00191 - B
Ep
1800
A
Uout
Rout
Uin
Rp
VIEW A
1200
1500
Rp
Rin
1500
1500
1500
SPAZI DI INSTALLAZIONE / CLEARANCES
DIMENSIONI DI TRASPORTO - TRANSPORT DIMENSION
LUNGHEZZA
PROFONDITA'
ALTEZZA
WIDTH
DEPTH
HEIGHT
1450
1350
2000
Ep
QUADRO ELETTRICO
ELECTRICAL PANEL
Rout
USCITA ACQUA RECUPERO
RECOVERY WATER OUTLET
1" 1/4
BSPM
Rp
PANNELLO ASPORTABILE
REMOVABLE PANEL
Uin
INGRESSO ACQUA UTILIZZO
USER WATER INLET
1" 1/4
BSPM
Pm
GRIGLIE DI PROTEZIONE
PROTECTIVE METAL MESH
Uout
USCITA ACQUA UTILIZZO
USER WATER OUTLET
1" 1/4
BSPM
Rin
20
DIMENSIONI - DIMENSIONS
INGRESSO ACQUA RECUPERO
RECOVERY WATER INLET
1" 1/4
BSPM
FLUSSO ARIA
AIR FLOW
Swegon reserves the right to alter specifications.
B
Rev.
17\09\2013
F. SANAVIA
Dis.-Draftsman
M. MASTROSIMONE
LUNGHEZZA
WIDTH
PROFONDITA'
DEPTH
ALTEZZA
HEIGHT
1300
1200
1800
MODELLO
MODEL
(Kg)
14
18
AGG. TABELLA PESI, DIMENSIONI TRASPORTO
PESO
WEIGHT
(Kg)
385
395
PESO IN FUNZIONE
OPERATING WEIGHT
(Kg)
393
403
www.swegon.com
INDIGO
Dimensional diagram INDIGO 14-18
SD00190 - B
1300
Ep
Ep
1800
A
Rp
Rout
Uin
Rin
VIEW A
1600
1500
Rp
Uout
1500
1500
1500
SPAZI DI INSTALLAZIONE / CLEARANCES
DIMENSIONI DI TRASPORTO -TRANSPORT DIMENSION
LUNGHEZZA
PROFONDITA'
ALTEZZA HEIGHT
WIDTH
DEPTH
1400
1700
2000
Rout
1" 1/4
BSPM
LUNGHEZZA
WIDTH
PROFONDITA'
DEPTH
ALTEZZA
HEIGHT
PANNELLO ASPORTABILE
REMOVABLE PANEL
Uin
INGRESSO ACQUA UTILIZZO
USER WATER INLET
1" 1/4
BSPM
1300
1600
1800
GRIGLIE DI PROTEZIONE
PROTECTIVE METAL MESH
Uout
USCITA ACQUA UTILIZZO
USER WATER OUTLET
1" 1/4
BSPM
Ep
Rp
Pm
Rin
DIMENSIONI - DIMENSIONS
USCITA ACQUA RECUPERO
RECOVERY WATER OUTLET
QUADRO ELETTRICO
ELECTRICAL PANEL
INGRESSO ACQUA RECUPERO
RECOVERY WATER INLET
F. SANAVIA
B
17\09\2013
Rev. Data-Date
Dis.-Draftsman
Denominazione-Denomination
N. BETTIO
Visto-Checked by
SCHEMA DIMENSIONALE
DIMENSIONAL DRAWING
Scala-Scale
1/25
Data-Date
27\08\2013
Sost. il dis.-Replace draw.
/
Materiale-Material
/
FLUSSO ARIA
AIR FLOW
1" 1/4
BSPM
Spessore-Thickness
/
MODELLO
MODEL
PESO
WEIGHT
PESO IN FUNZIONE
OPERATING WEIGHT
14
18
360
370
338
378
AGG. TABELLA PESI E TRASPORTO
Descrizione revisione-Revision description
Codice-Code
AURORA
14-18
Dis.-Draftsman
F. Sanavia
Visto-Checked by
N. Bettio
Sost. dal dis.-Replaced by draw.
/
Trattamento-Treatment
/
/
Swegon reserves the right to alter specifications.
Disegno-Drawing
Rev.
SD00190
B
Foglio
di 1
N. 1
Sheet
of
Peso-Weight [kg]
Colore vernice-Painted colour
/
- Proprietà riservata, riproduzione vietata a termini di
legge.Copyright.
- Reserved property, reproduction prohibited accordin to
existent laws.Copyright.
MTE 56 rev. 02 date: 17/01/07
www.swegon.com
21
60219000102_INDIGO_01-10-2013
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising