Air Design PREMA Series Installation and operating instructions

I N STA LL ATI O N &
MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY
RECOVERY VENTILATION UNITS
REF: AD PREMA INST ISSUE A: 12.09.17
THESE INSTRUCTIONS MUST BE READ FULLY
BEFORE COMMENCING INSTALLATION.

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
2
Contents
Installation, Operating & Maintenance Instructions
Introduction, general, delivery, safety, warnings and labels, other risks
Maintenance regulations, disassembly and re-assembly, disposal, handling and offloading, storage
Equipment start-up, installation and assembly
Unit dimensions
Unit outline
Minimum space required for maintenance
Condensation removal
Control / PCB Layouts & Schematics
Controls and applications
CTRL-DSP display
Display functions
Main menu functions
Service menu functions
Installation wiring
Control board connections, power supply connections, sensors
Fault diagnostics
Installation, Maintenance & Service Schedule
Installation, fitting and maintenance instructions for cylindrical silencers
Filter dirty indication, maintenance
Filter replacement
Service
Trouble shooting
Certification
EC Declaration of Incorporation
Page
3
4
5
6
7
8
9
10
11
12
13
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25
26
27
28
29
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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
3
Introduction
The information contained in this document provides details of installation, operation and maintenance for installers and
users. The PREMA ceiling void energy recovery ventilation range comprises a combination of high efficiency centrifugal
fans with EC motors, a counter flow design plate heat exchanger and a casing with acoustic treatment.
General information regarding performance and specifications for the equipment may be obtained from our technical
literature, and / or project specific documentation.
General
All maintenance procedures shall only be carried out whilst the product is isolated from electrical supplies. In order to
minimise the risk of a fan motor unit being started accidentally during maintenance, it is recommended that central control
panels / switchboards are clearly marked with a suitable warning sign.
In addition, before connecting an electrical supply cable to any terminal board, please ensure that the line voltage
matches that stated on the product label. Should product labels become illegible over time it is recommended that these
be replaced.
Delivery
All equipment is inspected prior to despatch and leaves the factory in good condition. Upon receipt of the equipment an
inspection should be made and any damage indicated on the delivery note. No responsibility will be accepted for damage
sustained during the offloading from the vehicle or on the site thereafter. All claims for damage and / or incomplete
delivery must be reported within two days of receipt of the equipment.
The usual method of packing for these products is to be loaded onto pallets and shrink wrapped to minimise water
ingress.
Safety Standards and “CE” Marking
In-line with our policy of continuous product improvement, we are constantly striving to deliver more efficient products that
comply with current safety standards. The standards and guidance contained within this documentation therefore reflect
compliance with these safety standards and regulations. In addition to the advice given within this document, we strongly
recommend that all personnel who may be exposed to risks during the installation, use or maintenance of our equipment,
should ensure that they comply with all relevant safety regulations that are in force within their respective countries.
Elta Group Building Services does not accept responsibility for personal injury or damage caused to property resulting
from non-compliance with these safety standards, or as a result of any none approved product modifications.
Warning / Danger Labels
All internal cabling is situated within the bypass channel, behind the isolator panel. No drilling into this unit is permissible,
as any such action may result in an electric shock and will void the external L2 leakage rating (this applies to all of the
panels and controls area).
The units can have a number of different warning labels or symbols affixed to it, which should not be removed.
Product risks have been analysed in accordance with Machinery Directive 2006/42/CE. The associated directive handbook
contains information and advice for all responsible personnel and is designed to minimise possible risks of personal injury
or damage to property.

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
4
Maintenance Regulations
Personnel responsible for maintenance must work in accordance with any accident prevention (safety) regulations that are
in force in your area. In particular the following recommendations should be complied with:
• Wear suitable safety clothing and protection to minimise the risk of accident
• Ensure that a safety interlock is off and locked so that the units may not be started by non-authorised personnel
Disassembly and Re-assembly
Before starting any disassembly or re-assembly operation, please ensure that the product is isolated from its mains
electrical supply in order to ensure that fans cannot be run. As disassembly and re-assembly are not part of routine
maintenance, these should be carried out by qualified personnel.
Disposal
Please ensure that products are dismantled and disposed of, in an environmentally friendly way, in
accordance with the Waste Electrical and Electronic Equipment (WEEE) Directive 2012/19/EU together with
the RoHS Directive 2002/95/EC, where applicable.
Handling and Offloading
Before offloading products, please ensure that the means of
transport / lifting is suitable to accommodate the required
weight and size. The units are shipped on a pallet; a forklift
truck should be used. Lift the unit into position by passing the
forks of a forklift truck through the pallet.
Alternatively, the equipment may be lifted from above using
a crane. Lifting beams should be passed through the pallet
in the same way as the forks of a forklift truck would be
inserted. When lifting, spreaders must be used to avoid
damage to the casing. Care must be taken to ensure that
slings are correctly positioned.
CAUTION: Handles, controls enclosures, duct connectors or pipework connectors are NOT designed to be load-bearing,
and under no circumstances must these be used to support or move the equipment during installation. Failure to observe
this may result in severe damage to the equipment.
Storage
The equipment must be stored in a dry internal location. Ductwork connection apertures must be sealed against the
ingress of dust, water and vermin. Do not stack units.
Whenever any access panels are removed for inspection purposes they must be replaced and made secure.
Filters
All filters must be suitably wrapped and sealed to prevent damp and ingress of dust or foreign bodies, and must be held in
a dry store.
PERMA
Introduction, General, Safety, Maintenance Regulations, Other Risks, Warning labels
Introduction
The information contained in this document provides details
of installation, operation and maintenance for installers and
users. The PREMA CEILING VOID ENERGY RECOVERY
VENTILATION range comprises a combination of high
efficiency centrifugal fans with EC motors, a counter flow
design plate heat exchanger, and a casing with acoustic
treatment.
General information regarding performance and
specifications for the equipment may be obtained from our
Technical Literature, and/or project specific documentation
General
All maintenance procedures shall only be carried out whilst the
product is isolated from electrical supplies. In order to minimise
the risk of a fan motor unit being started accidentally during
maintenance, it is recommended that central control panels
/
switchboards are clearly marked with a suitable warning sign.
In addition, before connecting an electrical supply cable to any
terminal board, please ensure that the line voltage matches that
stated on the product label. Should product labels become
illegible over time it is recommended that these be replaced
Delivery
All equipment is inspected prior to dispatch and leaves the
factory in good condition. Upon receipt of the equipment an
inspection should be made and any damage indicated on the
delivery note. No responsibility will be accepted for damage
sustained during the offloading from the vehicle or on the site
thereafter. All claims for damage and/or incomplete delivery must
be reported within two days of receipt of the equipment.
The usual method of packing for these products is to be
loaded onto pallets, with a shrink wrap protective added
to minimise water ingress.
Safety standards and “CE” Marking
In-line with our policy of continuous product improvement, we are
constantly striving to deliver more efficient products that comply
with current safety standards. The standards and guidance
contained within this documentation therefore reflect compliance
with these safety standards and regulations. In addition to the
advice given within this document, we strongly recommend that
all personnel, who may be exposed to risks during the
installation, use or maintenance of our equipment, should ensure
that they comply with all relevant safety regulations that are in
force within their respective countries.
Elta Group Building services does not accept responsibility for
personal injury or damage caused to property resulting from non-
compliance with these safety standards, or as a result of any
none approved product modifications.
Warning / danger Labels
All internal cabling is situated within the bypass channel, behind the
Isolator panel. No drilling into this unit is permissible, as any such
action may result in an electric shock and will void the external L2
leakage rating. (
This applies to all the panels and controls area )
The units can have a number of different warning labels or
symbols affixed to it, which should not be removed.
Product risks have been analysed in accordance with Machinery
Directive 2006/42/CE. The associated directive handbook contains
information and advice for all responsible personnel and is designed
to minimise possible risks of personal injury or damage to property.
Maintenance Regulations
Personnel responsible for maintenance must work in accordance
with any accident prevention (safety) regulations that are in force in
your area. In particular the following recommendations should be
complied with:
- Wear suitable safety clothing and protection to
minimise the accident risk.
- Ensure that a safety interlock is off and locked, so that the
units may not be started by non-authorized personnel.
Disassembly and Re-assembly
Before starting any disassembly or re-assembly operation, please
ensure that the product is isolated from its mains electrical supply,
in order to ensure that fans cannot be run. As disassembly and re-
assembly are not part of routine maintenance, these should be
carried out by qualified personnel.
Disposal
Please ensure that products are dismantled and
disposed of, in an environmentally friendly way,
in accordance with the Waste Electrical and
Electronic Equipment (WEEE) Directive
2012/19/EU together with the RoHS Directive
2002/95/EC, where applicable.
PERMA
HANDLING AND OFF LOADING
Before off-loading products, please ensure that the means of
transport/ lifting is suitable to accommodate the required
weight and size. The units are shipped on a pallet; a forklift
truck should be used. Lift the unit into position by passing the
forks of a forklift truck through the pallet.
Alternatively, the equipment may be lifted from above using a
crane. Lifting beams should be passed through the pallet in
the same way as the forks of a forklift truck would be
inserted. When lifting spreaders must be used to avoid
damage to the casing. Care must be taken to ensure that
slings are correctly positioned.
CAUTION:
Handles, controls enclosures, duct connectors or
pipework connectors are NOT designed to be load
bearing, and under no circumstances must these be used
to support or move the equipment during installation.
Failure to observe this may result in severe damage to
the equipment.
STORAGE
The equipment must be stored in a dry internal location.
Ductwork connection apertures must be sealed against
the ingress of dust, water and vermin. Do not stack
units.
Whenever any access panels are removed for
inspection purposes they must be replaced and made
secure.
Filters
All filters must be suitably wrapped and sealed to
prevent damp and ingress of dust or foreign bodies,
and must be held in a dry store.
EQUIPMENT START-UP
Before operating the following checks must be made:
• Ensure that inlet/outlet connections are free from obstruction
• Check that all product components are securely fastened in
their associated sealing gaskets
• Manually rotate each fan impeller to ensure that it does not
rub or bind onto the inlet cone.
• Ensure that any inspection or access doors are closed.
CAUTION:
If fan inlets or discharges are not connected to duct
work, please ensure suitable guards are fitted for
protection before the unit is started. Check that
electrical connections have been made correctly,
especially the earth connection.
IMPORTANT:
Electrical connections must be made by qualified
personnel.

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
5
Equipment Start-Up
Before operating the following checks must be made:
• Ensure that inlet / outlet connections are free from obstruction
• Check that all product components are securely fastened in their associated sealing gaskets
• Manually rotate each fan impeller to ensure that it does not rub or bind onto the inlet cone
• Ensure that any inspection or access doors are closed
CAUTION: If fan inlets or discharges are not connected to duct work, please ensure suitable guards are fitted for
protection before the unit is started. Check that electrical connections have been made correctly, especially the earth
connection.
IMPORTANT: Electrical connections must be made by qualified personnel.
Installation & Assembly
We recommend that the unit is fitted and fastened into its
correct position before making connections to ductwork,
condensate discharge pipe work or electrical connections.
The correct installation position for the units shall be decided
with due regard to access and maintenance requirements. The
units are heavy and should be mounted using the Ceiling Void
Mounting Kit (CVMK) supplied as an optional extra.
The CVMK comprises of three (3) off appropriately sized
Unistrut Support channels, c/w neoprene isolation pads and 6
Unit stops. Use the Unit stops to locate the unit centrally on the
isolation pads and supporting channels.
Threaded drop rods or suspension chains (supplied by others)
must be used in order to facilitate ceiling fastening and
levelling.
Other suitable methods of support can be used in conjunction
with either a Teco pad or Rubber strip material (recommended
running the full length of the unit) to isolate any vibration. This
must be assessed for structural suitability.
Heat recovery components may produce condensation during
use. A condensate pump is not provided as standard, and is
available as an optional extra.
We recommend the use of the Micro-V intelligent condensate
removal pump (See page 9 for details). The drain connection
terminates approximately 50mm outside from the panel and must be
connected to a suitable drainage point. Introduce a small amount of
water into the condensate tray to verify free flow into the drain.
Units must be installed in accordance with good industry practice.
Unit Size CVMK
PREM A180 783-MK-180
PREMA330 783-MK-330
PREMA540 783-MK-540
PREMA900 783-MK-900
Unit Stop(s)
Unitstrut Support
Side View (Drainage Side)
End View
100m
100mm
Drainage
Side
Controls /
Wiring Side
Drop rods or suspension chains
Unit Stop(s)
Unitstrut Support
Side View (Drainage Side)
End View
100m
100mm
Drainage
Side
Controls /
Wiring Side
Drop rods or suspension chains
Unit Stop(s)
Unitstrut Support
Side View (Drainage Side)
End View
100m
100mm
Drainage
Side
Controls /
Wiring Side
Drop rods or suspension chains

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
6
Unit Dimensions
Product L W H D E Weight kg
PREM A180 1537 997 308 250 490 125
PREMA330 1914 1286 363 315 610 194
PREMA540 2066 1496 474 355 750 241
PREMA900 2206 1496 624 500 750 330
W
101.5
114. 2
198
L
E crs
248
Ø13.7
Isolator
ØD ØD
Condensate
Drain
H
Exhaust
Extract
Outdoor
Air
Supply
Top Plan View
Side View
End View
Control Box on
PREMA180 only
All dimensions are expressed in mm.

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
7
Unit Outline
Note: These units must be mounted and be fully levelled in the horizontal plane.
PREMA180 PREMA330, PREMA540 & PREMA900
(As viewed from the underside)
See page 8 for minimum maintenance and service space, maintenance purposes and removal of filters.
Item Description Notes
1Fan(s) Supply / Extract
2Filter Set(s) Supply filter Grade F7
Extract filter Grade M5
3Pressure Switches DPS83 – 50Pa to 500Pa
4Isolator 220V to 240V 50/60Hz
5Damper Actuator Belimo TF230 – Spring return
230V 1Ph 50/60Hz
6Control Board Internal mounted on sizes
330,540 & 900
7Face and Bypass Damper -
8Temperature Sensors (set of 4 pcs) NTC sensors (10K @ 25°C)
9Room Controller Max cable length 30m
others Grab Handles -
Panel Stop(s) Manual loosening / Tightening
Installation, Operating & Maintenance
PERMA
UNIT Outline
Note: These units must be mounted and be fully levelled in the horizontal plane.
As viewed from the underside
See page 7 for minimum maintenance and service space, for maintenance purposes and removal of filters.
Item
Description
Notes
1
Fan(s)
Supply / Extract
2
Filter Set(s)
Supply filter Grade F7
Extract filter Grade M5
3
Pressure Switches
DPS83 – 50PA to 500Pa
4
Isolator
220V to 240V 50/60Hz
5
Damper Actuator
Belimo TF230 – Spring return
230V 1Ph 50/60Hz
6
Control Board
Internal mounted on sizes
330,540 & 900
7
Face and Bypass Damper
8
Temperature Sensors (Set of 4 pcs)
NTC sensors (10K @ 25°C)
9
Room Controller
Max cable length 30m
others
Grab Handles
Panel Stop(s)
Manual loosening / Tightening
Outdoor air
(T21)
Exhaust
(T12)
Extract
(T11)
Supply
(T22)
Drainage
Supply
Filters
Extract
Filters
Extract
Filters/Damper/Fan
Supply
Fan/Filters
PREMA330, 540 & 900
Outdoor air
(T21)
Exhaust
(T12)
Supply
Filters
Extract
Filters
Supply
Fan
Extract
Damper/Fan
Drainage
Extract
(T11)
PREMA180
Supply
(T22)
Installation, Operating & Maintenance
PERMA
UNIT Outline
Note: These units must be mounted and be fully levelled in the horizontal plane.
As viewed from the underside
See page 7 for minimum maintenance and service space, for maintenance purposes and removal of filters.
Item
Description
Notes
1
Fan(s)
Supply / Extract
2
Filter Set(s)
Supply filter Grade F7
Extract filter Grade M5
3
Pressure Switches
DPS83 – 50PA to 500Pa
4
Isolator
220V to 240V 50/60Hz
5
Damper Actuator
Belimo TF230 – Spring return
230V 1Ph 50/60Hz
6
Control Board
Internal mounted on sizes
330,540 & 900
7
Face and Bypass Damper
8
Temperature Sensors (Set of 4 pcs)
NTC sensors (10K @ 25°C)
9
Room Controller
Max cable length 30m
others
Grab Handles
Panel Stop(s)
Manual loosening / Tightening
Outdoor air
(T21)
Exhaust
(T12)
Extract
(T11)
Supply
(T22)
Drainage
Supply
Filters
Extract
Filters
Extract
Filters/Damper/Fan
Supply
Fan/Filters
PREMA330, 540 & 900
Outdoor air
(T21)
Exhaust
(T12)
Supply
Filters
Extract
Filters
Supply
Fan
Extract
Damper/Fan
Drainage
Extract
(T11)
PREMA180
Supply
(T22)

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
8
Minimum Space Required for Maintenance
Access into the equipment is via access panels located on proper functioning both sides of the unit.
PREMA180 & PREMA330 PREMA540 & PREMA900
(As viewed from the underside)
Unit Size Unit Width (mm)
PREM A180 997
PREMA330 1286
PREMA540 1496
PREMA900 1496
Installation, Operating & Maintenance
PERMA
Minimum Maintenance space and Condensation Removal
MINIMUM space required for maintenance Condensation Removal
Access into the equipment is via access panels located on Condensation Removal is essential for the proper functioning
both sides of the unit of the energy recovery unit.
As viewed from the underside
The unit is equipped with a condensate drainage point with
an outside diameter of Ø13.7mm (¼” MDP), terminating
approximately 50mm from the panel.
If not using the recommended “783-CDP” Micro-V intelligent
condensate removal pump, a drain trap should be attached to
ensure effective evacuation of water during normal operation.
“783-CDP” Micro-V intelligent Condensate pump specification
Maximum flow rate = 14.5 L/h
Maximum head = 10m Vertical,
Pump Power supply = 100V to 240V AC 50Hz / 60Hz 0.45 A
Pipe Connection size = 12mm to16mm (Low Pressure
Condensate connection)
Sizes 540 & 900
Outdoor
air
Exhaust
Maintenance/Services side
Maintenance side
485mm Width
Minimum
485mm Width
Minimum
Extract
Supply
Drainage
Supply
Filters
Extract
Filters
Extract
Filters/Damper/Fan
Supply
Fan/Filters
Sizes 180 & 330
Outdoor
air
Exhaust
Services side
Maintenance side
550mm Width
Minimum
350mm Width
Minimum
Supply
Filters
Extract
Filters
Supply
Fan
Extract
Damper/Fan
Drainage
Extract
Supply
(mm)
PREMA180
997
PREMA330
1286
PREMA540
1496
PREMA900
1496
Note: For convenience it is preferred that wherever possible, this minimum access provision is not adopted, and “the requirement
could be satisfied if 600mm space is provided”. (As stated in “The Building Regulations Part F”)
Installation, Operating & Maintenance
PERMA
Minimum Maintenance space and Condensation Removal
MINIMUM space required for maintenance Condensation Removal
Access into the equipment is via access panels located on Condensation Removal is essential for the proper functioning
both sides of the unit of the energy recovery unit.
As viewed from the underside
The unit is equipped with a condensate drainage point with
an outside diameter of Ø13.7mm (¼” MDP), terminating
approximately 50mm from the panel.
If not using the recommended “783-CDP” Micro-V intelligent
condensate removal pump, a drain trap should be attached to
ensure effective evacuation of water during normal operation.
“783-CDP” Micro-V intelligent Condensate pump specification
Maximum flow rate = 14.5 L/h
Maximum head = 10m Vertical,
Pump Power supply = 100V to 240V AC 50Hz / 60Hz 0.45 A
Pipe Connection size = 12mm to16mm (Low Pressure
Condensate connection)
Sizes 540 & 900
Outdoor
air
Exhaust
Maintenance/Services side
Maintenance side
485mm Width
Minimum
485mm Width
Minimum
Extract
Supply
Drainage
Supply
Filters
Extract
Filters
Extract
Filters/Damper/Fan
Supply
Fan/Filters
Sizes 180 & 330
Outdoor
air
Exhaust
Services side
Maintenance side
550mm Width
Minimum
350mm Width
Minimum
Supply
Filters
Extract
Filters
Supply
Fan
Extract
Damper/Fan
Drainage
Extract
Supply
(mm)
PREMA180
997
PREMA330
1286
PREMA540
1496
PREMA900
1496
Note: For convenience it is preferred that wherever possible, this minimum access provision is not adopted, and “the requirement
could be satisfied if 600mm space is provided”. (As stated in “The Building Regulations Part F”)
Note: For convenience it is preferred that wherever possible, this minimum access provision is not adopted, and “the requirement could be
satisfied if 600mm space is provided.” (As stated in “The Building Regulations Part F”).

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
9
Installation, Operating & Maintenance
PERMA
Minimum Maintenance space and Condensation Removal
MINIMUM space required for maintenance Condensation Removal
Access into the equipment is via access panels located on Condensation Removal is essential for the proper functioning
both sides of the unit of the energy recovery unit.
As viewed from the underside
The unit is equipped with a condensate drainage point with
an outside diameter of Ø13.7mm (¼” MDP), terminating
approximately 50mm from the panel.
If not using the recommended “783-CDP” Micro-V intelligent
condensate removal pump, a drain trap should be attached to
ensure effective evacuation of water during normal operation.
“783-CDP” Micro-V intelligent Condensate pump specification
Maximum flow rate = 14.5 L/h
Maximum head = 10m Vertical,
Pump Power supply = 100V to 240V AC 50Hz / 60Hz 0.45 A
Pipe Connection size = 12mm to16mm (Low Pressure
Condensate connection)
Sizes 540 & 900
Outdoor
air
Exhaust
Maintenance/Services side
Maintenance side
485mm Width
Minimum
485mm Width
Minimum
Extract
Supply
Drainage
Supply
Filters
Extract
Filters
Extract
Filters/Damper/Fan
Supply
Fan/Filters
Sizes 180 & 330
Outdoor
air
Exhaust
Services side
Maintenance side
550mm Width
Minimum
350mm Width
Minimum
Supply
Filters
Extract
Filters
Supply
Fan
Extract
Damper/Fan
Drainage
Extract
Supply
(mm)
PREMA180
997
PREMA330
1286
PREMA540
1496
PREMA900
1496
Note: For convenience it is preferred that wherever possible, this minimum access provision is not adopted, and “the requirement
could be satisfied if 600mm space is provided”. (As stated in “The Building Regulations Part F”)
Condensation Removal
Condensation removal is essential for the proper functioning of the energy recovery unit.
The unit is equipped with a condensate drainage point with an outside diameter of Ø13.7mm (¼” MDP), terminating
approximately 50mm from the panel.
If not using the recommended “783-CDP” Micro-V intelligent condensate removal pump, a drain trap should be attached
to ensure effective evacuation of water during normal operation.
“783-CDP” Micro-V intelligent Condensate pump specification
Maximum flow rate = 14.5 L/h
Maximum head = 10m Vertical
Pump power supply = 100V to 240V AC 50Hz / 60Hz 0.45 A
Pipe connection size = 12mm to16mm (Low pressure condensate connection)

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
10
Controls
The controller software is designed to handle four different applications. Each application has its own set of parameters
(input value range, set points, p-band, min and max speeds, etc.) and control function. The application is pre-selected
when manufactured but can be changed like the other parameters using the CTRL-DSP.
When the device is enabled, the fan speeds are controlled by the value of the 0-10VDC CONTROL INPUT SIGNAL,
depending on the application e.g. CO2sensor, pressure control, BMS or manual.
Applications
0-10V control
Control input signal 0-10VDC determines the fans speed 0-100% of configured max. speed.
High input signal gives high fan speed.
CO2control
The room’s CO2content (Control input signal 0-10VDC mapped to CO2sensor range) is controlled by a P controller
(P band).
High CO2rate gives high fan speed.
Pressure control
Duct air pressure (Control input signal 0-10VDC mapped to pressure sensor range) is controlled by a Proportional,
Integrating and Derivating (PID) controller.
High pressure value gives low fan speed.
Manual fan speed control
The fan speed is set manually using the CTRL-DSP UP and DOWN buttons (resolution 1%).
Fixed speed
With the unit enabled and fixed speed input open, fans will run at fixed speed, settable in parameter P06.

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
11
CTRL-DSP Display
EDATE: shows the current date NMenu scroll LEFT
FAPPLICATION: shows the current application OTo go DOWN in menus
GMODE: shows auto fan [all modes except
manual] or manual position PTo go UP in menus
HTIME: shows the time QOn / Off: power the unit (hold for 5 seconds)
IRemote Enable: shows remote enable is
disabled UTIMECLOCK: shows timeclock on / off
JBoost: fans run at full speed 10V RFAULT: shows error alarm, refer to error codes
KESC key: to exit and go back to the previous
menu YBYPASS: shows when active
LOK key: to enter the selected menu XHEATER: shows heater output is active
MMenu scroll RIGHT ERROR CODE – see page 26
To enter the main menu press OK or ESC
To exit the main menu press ESC or wait approx. 60 seconds
Auto mode applications Manual mode
0-10V, CO2and pressure Main menu on CTRL-DSP
Installation, Operating & Maintenance
PERMA
Controls
The controller software is designed to handle Four (4) different applications.
Each application has its own set of parameters (input value range, set points, p-band, min and max
speeds, etc.) and control function. The application is preselected at factory but can be changed like the
other parameters using the CTRL-DSP.
When the device is enabled, the fan speeds are controlled by the value of the 0-10VDC CONTROL INPUT
SIGNAL, depending on the application: (e.g. CO2 sensor, pressure control, BMS or manual)
APPLICATIONS
0-10V control
Control input signal 0-10VDC determines the fans speed 0-100% of configured max. speed.
High input signal gives high fan speed.
CO2 control
The room’s CO2 content (Control input signal 0-10VDC mapped to CO2 sensor range) is controlled by a P
controller (P band). High CO2 rate gives high fan speed.
Pressure control
Duct air pressure (Control input signal 0-10VDC mapped to pressure sensor range) is controlled by a PID
controller (Proportional, Integrating and Derivating).
High pressure value gives low fan speed
Manual fan speed control
The fan speed is set manually using the CTRL-DSP’s UP and DOWN buttons (resolution 1%).
Fixed speed
With the unit Enabled and Fixed Speed input open, fans will run at fixed speed, settable in parameter P06
CTRL-DSP display
Ⓔ
DATE: shows the current date
Ⓝ
Menu scroll LEFT
Ⓕ
APPLICATION: shows the current application
Ⓞ
To go DOWN in menus
Ⓖ
MODE: Shows auto fan [all modes except manual]
or manual position
Ⓟ
To go UP in menus
Ⓗ
TIME: shows the time
Ⓠ
On/Off: power the unit (Hold for 5 seconds)
Ⓘ
Remote Enable: shows remote enable is disabled
Ⓤ
TIMECLOCK: shows timeclock on/off
Ⓙ
Boost: Fans run at full speed 10V
Ⓡ
FAULT: shows error alarm, refer to error codes
Ⓚ
ESC key: to exit and go back to the previous menu
Ⓨ
BYPASS: Shows when active
Ⓛ
OK key: to enter the selected menu
Ⓧ
HEATER: Shows heater output is active
Ⓜ
Menu scroll RIGHT
ERROR CODE – see page 20
Error code
Installation, Operating & Maintenance
PERMA
To enter the main menu press OK or ESC
To exit the main menu press ESC or wait approx. 60 seconds
Auto mode applications Manual mode
0-10V, CO2, and Pressure Main Menu on CTRL-DSP
Display Functions
Use or  to select required menu
Press OK to enter any parameter
P02 to P04 only visible in selected applications Pressure or CO2
P12 only visible if P11 set to “Pre” or “Post” heating type
Main Menu
Language
Date/Time
P01: Fan Application
P02: Sensor Range MIN
P03: Sensor Range MAX
P04: Setpoint
P05: PID Control
P06: Fixed speed value
P07: Run On Time (minutes)
P08: Min Fan Speed
P09: Max Fan Speed
P10: Extract Fan Speed Offset
P11: Heating Type
P12: Heating Threshold (Only If P11 set)
P13: Desired Temperature
P14: Max Free Heating Temperature
P15: Min Free Cooling Temperature
Weekly timer
Working Hours Counter
Save Settings
Load Settings
Restore Default Settings
Contrast
Debug Page

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
12
Display Functions
Use or to select required menu
Press OK to enter any parameter
P02 to P04 only visible in selected applications Pressure or CO2
P12 only visible if P11 set to ‘Pre’ or ‘Post’ heating type
Main Menu
Language
Date / Time
P01: Fan Application
P02: Sensor Range MIN
P03: Sensor Range MAX
P04: Setpoint
P05: PID Control
P06: Fixed Speed Value
P07: Run On Time (minutes)
P08: Min Fan Speed
P09: Max Fan Speed
P10: Extract Fan Speed Offset
P11: Heating Type
P12: Heating Threshold (only If P11 set)
P13: Desired Temperature
P14: Max Free Heating Temperature
P15: Min Free Cooling Temperature
Weekly Timer
Working Hours Counter
Save Settings
Load Settings
Restore Default Settings
Contrast
Debug Page

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
13
Allows selection of language between English and Italian*
Press OK to enter
Language is flashing: use or to choose
Press OK to select
*The factory setting (DEFAULT) is English
Allows selection of date and time
Press OK to enter
Use or to choose
Press OK for setting and again to confirm
Press ESC to go back to the previous menu
Allows selection of desired application
Press OK to enter
Application is flashing: use or to choose
Applications available:
0-10V: Input signal 0-10VDC determines the fans speed
0-100% of the configured max. Speed. High input signal gives high fan speed
MANUAL: The fan speed is set manually using the CTRL-DSP’s UP and
DOWN buttons
PRESSURE: Duct air pressure (control input signal 0-10VDC mapped to
pressure sensor range) is controlled by a PID (proportional, integrating and
derivating) controller. High pressure value gives low fan speed
CO2: The room’s CO2content (control input signal 0-10VDC mapped to
CO2sensor range) is controlled by a P controller (P band). High CO2rate
gives high fan speed
Press OK to select
The factory setting (DEFAULT) is 0-10V
Refer to Application Control Functions for further information
Main Menu Functions
Main Menu
Language
Main Menu
Date / Time
Main Menu
P01: Application

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
14
Parameter is not visible when application is MANUAL or 0-10V
Allows selection of desired maximum sensor value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Application Default Min Max Min Value
Change
Unit
Value
CO20 0 1000 100 ppm
PRESSURE 0000Pa
Parameter is not visible when application is MANUAL or 0-10V
Allows selection of desired minimum sensor value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Application Default Min Max Min Value
Change
Unit
Value
CO22000 1000 2500 100 ppm
PRESSURE 300 50 1000 10 Pa
Parameter is not visible when application is MANUAL or 0-10V
Allows selection of desired minimum sensor value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Application Default Min Max Min Value
Change
Unit
Value
CO21000 02000 100 ppm
PRESSURE 150 0300 10 Pa
Main Menu
P03: Sensor Range MAX
Main Menu
P04: Setpoint
Main Menu
P02: Sensor Range MIN

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
15
Allows selection of PID response
Press OK to enter
PID mode is flashing: use or to choose
PID Modes available:
SLOW: Global gain set to 0.2, other PID values default
NORMAL: Global gain set to 0.5, other PID values default
FAST: Global gain set to 0.9, other PID values default
CUSTOM: Custom is automatically selected if advanced settings in service
menu changed
Press OK to select
The factory setting (DEFAULT) is NORMAL
Refer to Control Functions and SERVICE Menu for advanced PID settings
Allows selection of the fixed speed value
When the device is enabled and the fixed speed input is open, the unit runs
at a fixed speed
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
10 10 100 1 %
Allows selection of the Run On Time (minutes)
When the device is enabled and the remote enable input is open
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Note: Run on is active only on supply fan (where heater is normally fitted)
Available settings are:
Default Min Max Min Value
Change
Unit
Value
3 3 20 1minutes
Main Menu
P05: PID Control
Main Menu
P06: Fixed Speed Value
Main Menu
P07: Run On Time (minutes)

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
16
Allows adjustment of the minimum fan speed value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
20 10 50 1 %
Allows adjustment of the minimum fan speed value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
100 50 100 1 %
Allows adjustment of the fan speed value for the EXTRACT fan
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
0-20 +20 1 %
Allows selection of Heating Type response
Press OK to enter
Heating Type mode is flashing: use or to choose
Heating Type Modes available: none, PRE, POST
HEATER: Heater runs depending on heating type:
• NONE: The HEATER output is never activated
• PRE: The HEATER output is activated if T21< P12
Heating Threshold Hysteresis = ± 2.5°C
• POST: The HEATER output is activated if T22< P12
Heating Threshold Hysteresis = ± 1°C
The heating is always off when the unit is disabled
Main Menu
P08: Min Fan Speed
Main Menu
P09: Max Fan Speed
Main Menu
P10: Extract Fan Speed Offset
Main Menu
P11: Heating Type

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
17
Parameter is only visible when application P11 is set to PRE or POST
Allows adjustment of the Heating Threshold value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Heating
type Default Min Max Min Value
Change
Unit
Value
Pre 6 0 15 1°C
Post 20 15 25 1°C
Allows adjustment of the Desired Temperature value for bypass
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
23 15 30 1°C
Main Menu
P12: Heating Threshold
Main Menu
P13: Desired Temperature
Main Menu
P14: Max Free Heating Temp
BYPASS: Bypass Damper runs depending on temperature parameters and temperature values as follows:
SUMMER: Bypass is ON only if (P15 Tmin free cooling < T21 < T11-1°C) AND (T11 > P13 desired temperature)
WINTER: Bypass is ON only if (P14 Tmax free heating > T21 > T11+1°C) AND (T11 < P13 desired temperature)
In all other conditions BYPASS is not activated
See page 7 for temperature sensor locations
Winter Heating
Allows adjustment of the Max Free Heating Temperature value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
28 25 30 1°C

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
18
Summer Cooling
Allows adjustment of the Min Free Cooling Temperature value
Press OK to enter
Value is flashing: use or to choose
Press OK to select
Available settings are:
Default Min Max Min Value
Change
Unit
Value
18 15 20 1°C
Allows selection of 7 day / time clock configuration of daily timer
ON / OFF settings
Press OK to enter
Value is flashing: use or to choose ON
Use or to select day of the week
Press OK to select ON time
Use or to select time
Use or to scroll through values
“Copy on [next day]”: OK to choose YES, ESC to choose NO
“Save program?”: OK to choose YES, ESC to choose NO
Unit to be internally enabled / disabled by internal time clock, resolution 15’
If day / time clock is activated, icon shows the unit status (enabled / disabled)
via the dedicated clock icon (see U on page 11)
Operation is “OR” mode – either one REMOTE ENABLE INPUT or CLOCK
ENABLE must be active for the unit to run
Note: Remote enable input (HY / S1) is closed will over ride weekly timer
function
Available settings are four ON / OFF times per day
Day
ON OFF
00:00 00:00
00:00 00:00
00:00 00:00
00:00 00:00
Main Menu
P15: Min Free Cooling Temp
Main Menu
Weekly Timer

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INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
19
Provides a count of number of unit working hours. This value cannot be
changed. The data is saved both on the CTRL-DSP and the PCB
Press OK to enter
Press OK / ESC to return to main menu
Allows saving the setting of parameters in the internal memory of the
CTRL-DSP to be loaded afterwards in other units
Press OK to enter
Use or to choose the position where to save the setting
Up to 8 different settings can be saved
Press OK to select
Press OK to confirm
Press ESC to go back to the previous menu
Allows loading of the saved setting on the next unit
Press OK to enter
Use or to choose the desired saved setting
Press OK to select
Press OK to confirm
Press ESC to go back to the previous menu
Allows restoring all the factory settings (DEFAULT)
Press OK to enter
Press OK to confirm
Allows you to set the LCD contrast
Use or to increase or decrease the contrast
Press OK to confirm
Shows the internal functional parameters of the unit
Press OK to enter
Press ESC to go back to the previous menu
Main Menu
Working Hours Counter
Main Menu
Save Settings
Main Menu
Load Settings
Main Menu
Restore Default Settings
Main Menu
Contrast
Main Menu
Debug Page

INSTALLATION & MAINTENANCE INSTRUCTIONS
PREMA CEILING VOID ENERGY RECOVERY VENTILATION UNITS
20
Fixed speed (HY / S1) – ON / OFF
Remote Enable (EN) – ON / OFF
Boost (BST) – ON / OFF
Fan speed r/min (V1 & V2) - only available if fan status signal (SO2) is set to tacho output.
Firmware version (HRU CTRL) - Controller Display
(HRU MB) - Mother board
Sensor input value (S4) – if sensor is connected
Slave input value (SLA) – not used on PREMA range
Temperature Sensor (NTC11 - 22) - real time sensor feedback
Installation, Operating & Maintenance
PERMA
Main Menu
Allows loading of the saved setting on the next unit
Press OK to enter.
Use or  to choose the desired saved setting
Press OK to select.
Press OK to confirm.
Press ESC to go back to the previous menu
Load Settings
Main Menu
Allows restoring all the factory settings (DEFAULT).
Press OK to enter.
Press OK to confirm.
Restore Default Settings
Main Menu
Allows you to set the LCD contrast.
Use or  to increase or decrease the contrast.
Press OK to confirm.
Contrast
Main Menu
Shows the internal functional parameters of the unit.
Press OK to enter.
Press ESC to go back to the previous menu.
Debug Page
Fixed speed (HY/S1) – ON / OFF
Remote Enable (EN) – ON / OFF
Boost (BST) – ON / OFF
Fan speed r/min (V1 & V2) - only available if fan status signal (SO2) is set to tacho output.
Firmware version (HRU CTRL) - Controller Display
(HRU MB) - Mother board
Sensor input value (S4) – If Sensor is connected
Slave input value (SLA) – Not used on PREMA range
Temperature Sensor (NTC11 - 22) - Real time sensor feedback
Firmware Version
Extract Fan speed - r/min
Supply Fan speed - r/min
Boost - On / Off
Remote enable
Fixed speed
Sensor input values if
connected
Slave input –
Not used on PREMMA
Temperature sensor
Real time Feedback
Installation, Operating & Maintenance
PERMA
Main Menu
Allows loading of the saved setting on the next unit
Press OK to enter.
Use or  to choose the desired saved setting
Press OK to select.
Press OK to confirm.
Press ESC to go back to the previous menu
Load Settings
Main Menu
Allows restoring all the factory settings (DEFAULT).
Press OK to enter.
Press OK to confirm.
Restore Default Settings
Main Menu
Allows you to set the LCD contrast.
Use or  to increase or decrease the contrast.
Press OK to confirm.
Contrast
Main Menu
Shows the internal functional parameters of the unit.
Press OK to enter.
Press ESC to go back to the previous menu.
Debug Page
Fixed speed (HY/S1) – ON / OFF
Remote Enable (EN) – ON / OFF
Boost (BST) – ON / OFF
Fan speed r/min (V1 & V2) - only available if fan status signal (SO2) is set to tacho output.
Firmware version (HRU CTRL) - Controller Display
(HRU MB) - Mother board
Sensor input value (S4) – If Sensor is connected
Slave input value (SLA) – Not used on PREMA range
Temperature Sensor (NTC11 - 22) - Real time sensor feedback
Firmware Version
Extract Fan speed - r/min
Supply Fan speed - r/min
Boost - On / Off
Remote enable
Fixed speed
Sensor input values if
connected
Slave input –
Not used on PREMMA
Temperature sensor
Real time Feedback
Real time feedback