Avensys SG 47 User manual

12.21 1
Avensys srl reserves the right to make changes without prior notice
SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance
Index
1 INTRODUCTION 2
2 PRODUCT DESCRIPTION 2
3 AIRFLOW LAYOUT 3
4 MAIN COMPONENTS 4
5 SAFETY 5
6 INSTALLATION 5
7 DIMENSIONS 9
8 ELECTRICAL INSTALLATION PROCEDURE 10
9 ACCESSORIES AND CONTROLS 14
10 ANTIFROST 16
11 CONDENSATE DRAIN 16
CE DECLARATION 17

2 12.21
Ⓑ
Ⓒ
Ⓐ
Ⓓ
1 INTRODUCTION
This manual is part of the product and can be consulted by scanning the QR code located inside the side panels.
This appliance is not intended for use by people with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge (including children).
The manufacturer is not liable for damages resulting from the failure to observe the safety instructions or improper use
and or installation.
In the event of failure of the appliance and/or breakage of any of its parts, deactivate it by disconnecting it from the
electrical supply, and refrain from any attempt repairing the unit and call for a qualied technician and original spare
parts.
It is responsibility of the installer to ensure that all of the equipment is installed in compliance with the manufacturer's
recommendations and with current local legislation and codes of practice. If these guidelines are not followed, the unit
may experience a shortened life or may present a risk of unsafety.
To guarantee e󰀩ciency and long working life, a unit inspection/maintenance should be carried out annually by an expert
technician.
1.1 PRODUCT DESCRIPTION
The high e󰀩cient heat recovery unit is ideal for all requirements in restaurants, o󰀩ces meeting rooms, classrooms,
shops and warehouses.
The layout shall take into consideration the space necessary for the installation of the unit, the mainteinance/service
purposes and possible noise generation too. The energy-recovery technology uses the heat of the stale indoor air to be
expelled in order to heat the incoming fresh air to a temperature much closer to the existing indoor air.
The basic unit includes the following separate parts:
Ⓐ 1x Unit complete with lter set
Ⓑ 1x Manual
Ⓒ 1x Touch screen controller
Ⓓ 2x Spigots
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 3
3 AIRFLOW LAYOUT
Supply (blue) (G) Fresh (green) Return (yellow) Exhaust (brown)
G
Bl
Y
B
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

4 12.21
UNIT WITH RETURN PLENUM
UNIT WITH BACK PLENUM
4 MAIN COMPONENTS
①Touch screen remote controller
②High e󰀩ciency counterow heat exchanger
③Electronic box with connections
④Air lter (return)
⑤Air lter (fresh)
⑥Condensate discharge
⑦Bypass valve for free cooling
⑧Extract and supply fans
⑨Side panels
⑩Infrared sensor (PIR)
⑪Accessory compartment (HWD - CWD)
⑫Sensor compartment
⑬Postheater comparment (eletric) (IEHD)
⑭Preheater comparment (electric)(IPEHD)
⑮Condensate drain pipe outlet (located at the spigot)
⑯Water pump access panel
⑰Compressor lever
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 5
5 SAFETY
Installation has to be carried out by a qualied technician.
Unit and accessories must be supplied by a dedicated
power line and duly sized di󰀨erential safety and thermal
protection. Before proceeding with maintenance please
unplug the system.
Unit and accessories must not be used as security
ventilation systems. Do not install in potentially explosive
atmosphere.
All control wires need be at least 50 mm away from the
power cable (due to magnetic elds).
Use original spare parts only to be sure not to void warranty.
Follow the local re regulations, as well as environmental
law requirements. The manufacturer does not accept
liability for this. Observe as well the safety regulations and
wear protective gloves.
5.1 POST-DELIVERY AND STORAGE
PROCEDURES
Before starting the installation, please check if the device
was delivered complete and undamaged. Losses or
damage recognizable upon delivery must be noted and
noted in detail on the delivery receipt. When recording
loss or damage, please be specic and avoid general
terms such as “box damaged” or “torn”. Please check size,
model and accessories too.
The unit must be stored in a dry and clean place protected
from frosting and magnetic elds, in its original packaging
until installation. In case of long-term storage or inactivity,
the unit must be protected from dust and moisture, and
the test described in part 1 1995-11 DIN VDE 0702-1 run.
Don’t run the unit prior to complete installation.
6 INSTALLATION
During installation leave a free space to maintenance and
service. The access panels have to be opened for that
purpose (see free space reccomendation for servicing) and
to allow internal components to be removed for cleaning or
service (for ex. heat exchangers, fans, lters).
The unit is designed to provide mechanical ventilation with
heat recovery. The unit can operate with constant speed,
constant air ow or constant pressure, with the related
accessories. The unit is equipped with high e󰀩ciency heat
exchanger (up to 95% heat can be recovered) and with
low consumption EC motors fans.
The unit is for indoor installation. Operation temperature is
0-40°C (without ambient frosting). For external temperature
lower than -10°C the preheater is recommended. Do not
continuously use the unit in the presence of water vapor
(both internal and external to the unit). For high humidity
atmosphere inquiry the manufacturer. The automatic frost
protection is provided by ow imbalancing. Electronic
controlled bypass damper is provided to supply ltered
outside fresh air. Bypass opens and closes according to
the setting available on touch screen (KTS) or can be
driven by an external input. Min external temperature to
close bypass and threshold internal temperature to open
bypass can be set. High surface area washable G4 lter
(coarse) (on return side) and F7 ePM1 55%(fresh side)
are standard. Clogged lter alarm is by pressure sensors
as standard.
Installing conditions and aeraulic system if not adequate
or properly planned can a󰀨ect the nominal performances
of the unit.
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

6 12.21
Remove 4x L
proles
DRAWN
CHECKED
ENGAPPR
MGRAPPR
Classedi tolleranza*:
ISO 2768-M
*Ovenon diversamente specificato
NAME
Tech.Dept.
DATE
11/15/20
NAME:
SIZE
A2
FILENAME: forkshook.dft
SHEET1 OF 1
Material:
Error: No refer
e
Spessore:
forkshook
PROJECT:
Raggio di piega
R=1.3
Cava V10
Tuttele pieghe si
intendonoa 90°
dovenon
diversamente
specificato
DRAWN
CHECKED
ENG APPR
MGR APPR
Classe di tolleranza*:
ISO 2768-M
*Ove non diversamente specificato
NAME
Tech. Dept.
DATE
11/15/20
NAME:
SIZE
A2
FILE NAME: forkshook.dft
SHEET 1 OF 1
Material:
Error: No refer
e
Spessore:
forkshook
PROJECT:
Raggio di piega
R=1.3
Cava V10
Tutte le pieghe si
intendono a 90°
dove non
diversamente
specificato
Minimum 3 hanging
points to fork lift, to
avoid shifting of the
lifting bands
Lifting bands
L
a
y
d
o
w
n
Lay a spacer on the
oor with the same
height of the pallet
Step 1
Step 2
Step 3
Remove the screws from the feet to remove
the feet
Lifting bands
can damage
components
6.1 UNIT HANDLING AND
INSTALLATION
The unit is factory delivered on a pallet to ensure an easy
and safe transport. We reccomend to follow the instruction
step by step. For crane handling all applicable crane safety
regulations must be respected.
• The delivered pallet is not suitable for crane handling.
• The pallet and the unit must be placed on a specic crane
platform duly designed and sized.
• Access panels and electronics controls must always be
closed and protected during handling.
6.2 HANDLING PROCEDURE
The unit and the pallet has been sized to pass through
most of the standard doors. In order to avoid damage we
suggest to bring it as close as possible to the installation
place.
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 7
Fix the unit to the ceiling.
Through the 2 holes x the rod bars
with 4 nuts (lock nuts) and 4 washers
per rod
6.2.1 INSTALLATION PROCEDURE
Use the existing holes
to x the plenum
Step 2
Step 1
(ducted return option)
Step 1.1
(Back plenum option)
Step 3
Step 4
①
②
③
④
Fix the back plenum to the ceiling
Insert a suitable seal on the surface that is in contact with
the device for optimum tightness
Fix the unit to the ceiling and to the plenum
Connect the two side panels with the plenum
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance
Fix the side panels to the unit with 4 hex head screws
and 4 washers (both for each panel)
Close the side panels

8 12.21
600 mm600 mm
Free space for
service and
operation
Ceiling, wall, oor or surface must be hard, at and level.
Please also check the local atmosphere: the humidity
in the room should not exceed 65% rel. Particularly, the
structure in new attic buildings should be checked prior to
installation with the installer.
The ambient temperature and the operating temperature
must not exceed 40°C. The air temperatures inside and
in the production plants must be respected and cannot
exceed 45°C. The ventilation unit is not suitable for use
in technological processes where explosive or aggressive
substances are contained in the air ow. Failure to follow
the instructions will void any warranty for the correct
operation of the equipment, as well as the manufacturer's
liability.
The unit must be positioned leveled: this is important to
drain the condensate. Remember the condensate ducting
with the siphon.
Check the unit air ow layout and installation: it is not
possible to change the ordered layout in site and specic
user requirements are to be factory tted with dedicated
customization.
VERY IMPORTANT: The unit can be mounted to the
ceiling using the two holes in the bracket. Make sure that
the backside panel is airtight. See the table with weight
and dimensions for each size. The supporting rods must
be sized to carry at least 2 times the weight.
CEILING VOID
Free space for
service and
operation
Free space for service and operation
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance
6.2.3 BASIC SITE REQUIREMENTS

12.21 9
UNIT WITH RETURN PLENUM:
see specic document
7 DIMENSIONS
WEIGHT 170 kg
SG 47 SG 77 SG127
L1950 1950 1950
W 1860 1860 1860
H 300 300 350
D 250 250 315
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

10 12.21
DRAWN
CHECKED
ENG APPR
MGR APPR
Classe di tolleranza*:
ISO 2768-M
*Ove non diversamente specificato
NAME
Tech. Dept.
DATE
04/11/21
NAME:
SIZE
A2
FILE NAME: SG127FS_assieme_fianco_scatola_nera.dft
SHEET 1 OF 1
Material:
Name?:Material
Spessore:
SG127FS_assieme
PROJECT:
Raggio di piega
R=1.3
Cava V10
Tutte le pieghe si
intendono a 90°
dove non
diversamente
specificato
8 ELECTRICAL INSTALLATION PROCEDURE
8.1 ELECTRIC CONNECTIONS
Warning! Always unplug the unit during the installation.
The unit must be earthed, a fuse is available. Protect each unit by residual-current circuit breaker (RCCB) and
thermomagnetic cut-out device. It is recommend to check if the supply system is already in accordance to your
regional safety regulations. Connect the wiring to the electrical box.
Touch screen control has to be connected to the board with a RJ45 8-pole Ethernet straight cable of Cat.5 (or higher).
The unit can receive two external signals (range 0-10 V). Signals can be digital (0/10) or analogic 0V through 10 V. The
pre-set input signals switch the unit on-o󰀨 or bypass on-o󰀨 or set a proportional air ow control. The unit also gives two
pre-set output signals congurable to provide either -running- or -bypass open- or -unit fault- statuses.
Important: Input and output conguration should be set in the touch screen control, under the service menu.
Priority: when the unit receives an o󰀨 command, whatever the input has given it, this has always the priority.
POWER CONNECTION:
1. Unscrew the electric box
small lid
2. Remove the cover to reach
the power plug and pull it out.
Connect the power cable in
conformity with the labels
located on the board
3. Close the box and lay the
cable under the cover recess
Open the left hand side panel.
Insert two screwdrivers (for each side
panel) to lock the side panels in the
open position
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 11
See power intake table for sizing the power cable. Always protect each unit with proper indipendent main switch and
safety protection (in accordance to the local laws). Cable for remote control must be in accordance to the recommendatios
you nd in the IOM of the remote control.
VERY IMPORTANT: insert the cable through the cable guide
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12 12.21
X4-1 X4-2 X4-3 X4-4 X4-5 X4-6 X4-7 X4-8 X4-9 X4-10 X4-11
MOD B MOD A GND GND INPUT 2 INPUT 1 +12V NO COM NO COM
〶
L
N
〶
X3-1
X3-2
X3-3
LN
〶
MR1
LN
BYPASS
MF1 CN1 CN2 TS TE TF TR
X1 X2 X3
L
N
8.2 BASIC WIRING DIAGRAM
BYPASS
TOUCH
SCREEN
AIR SENSORS OR
HEATING/COO-
LING ACCESSO-
RIES
FAN CONNECTIONS AIR TEMP. SENSORS
UNIT POWER
ELECTRIC BOARD
CONTROL BOARD
INTERNAL
ACCESSORIES
(OPTION)
Ex. AIR DUCT SENSOR
INTERNAL PREHEATER
supply
exhaust
fresh
return
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 13
contact 1
contact 2
connect
controller
controller
unit
fan +program
program
lter
service
NAME DESCRIPTION (when light is on)
FREE CONTACT 1 Free contact 1 is activated
FREE CONTACT 2 Free contact 2 is activated
ACCESSORIES
COMMUNICATION
The connected accessories are communicating with
the unit
TOUCH SCREEN - PLUG The touch screen is powered
TOUCH SCREEN - ARROWS The touch screen is communicating with the unit
MAIN POWER The unit is powered
FAN Weekly program is set and fans are operating
WEEKLY Weekly program is set
FILTER Clogged lter, see Maintenance and Troubleshooting
ALARM See Troubleshooting
8.3 UNIT OPERATION SIGNALS
On the electric box lights are positioned to signal operation mode or communication status between unit and touch
screen or unit and accessories.
ICON
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

14 12.21
ACCESSORIES
Control and regulation
• CO2 room sensor (APC) ▲
• CO2 duct sensor (DPC) ●
• VOC - volatile organic compound- ambient probe (APV) ▲ ◆
• VOC - volatile organic compound- duct probe (DPV) ▲ ◆
• Humidity room sensor (APH) ▲ ◆
• Humidity duct probe (DPH) ▲ ◆
• Defrost system by ow imbalancing (DES) ●
• Bypass 100% (BPD) ●
• Electronically contr. electric pre heater (PEHD) ◆
• Electronically controlled postheating water coil (HWD) ▲
• Electronically contr. chilled water coil (CWD) ▲
• Electronically contr. electric postheating (EHD) ▲
• Occupancy infra red sensor (IRS) ▲ ●
• Clogged lter alarm (time related) (DPS) ●
• Clogged lter alarm (pressure sensor) (DPP) ◆
• DSC Smart connect (DSC) ◆
• KTS BASIC touch screen remote controller ○
• KTS EXTRA touch screen remote controller ●
• Constant air ow operation (CAF) ◆
Communication
• MODBUS module (MOD) ◆
• Network module for TCP/IP (NET) ◆
• Radio frequency module (RFM) ◆
Mechanical accessories
• Return plenum (REP) ●
• Supply plenum (PLE) ●
9 ACCESSORIES AND CONTROLS
A wide range of accessories is available. Please ask for single technical sheet for further details.
▲ external accessory(option) ◆ inside the unit (option) ● factory fitted as standard ○ not available
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

12.21 15
Hot water coils with electronic controls - heating mode (SIDE MODULE) 2 pipes
Electric post heater with electronic controls (FACTORY FITTED)
Chilled water coils with electronic controls - cooling mode (SIDE MODULE) 2 pipes
Size Item ref. number Supply Capacity
[kW]
Air 20°C
80 HR
Water
7/12°C
Pres-
sure
drop
Water
[kPa]
Water
connection
(female)
Electric
power
intake
[W]
Current
[A] Air ow rate
[m3/h]
47
ICWD
AHDCOLCWC131
230V - 50Hz
3.84 kW 0.4 3/4” 50 0.4 350
77 AHDCOLCWC 132 5.40 kW 0.5 3/4” 87 0.7 550
127 AHDCOLCWC 133 9.21 kW 0.7 3/4” 150 1.2 950
Size Item ref. number Supply Capacity
[kW] Current [A] ∆T [°C] Air ow rate
[m3/h]
47
IEHD AELEH000808 230V - 50Hz 0.75 6,5 11 400
77 6 700
127 AELEH000809 2 13 7 1200
Size Item ref. number Supply Capacity
[kW]
Air 18°C
20 HR
Water
80/70°C
Pres-
sure
drop
Water
[kPa]
Water
connection
(female)
Electric
power
intake
[W]
Current
[A] Air ow
rate [m3/h]
47
IHWD
AHDCOLHWC131
230V - 50Hz
6 14,6 3/4” 50 0.4 350
77 AHDCOLHWC132 8.9 12.4 3/4” 87 0.7 550
127 AHDCOLHWC133 15.4 16.4 3/4” 150 1.2 950
Size Item ref. number Supply Capacity
[kW] Current [A] Air ow rate [m3/h]
47
IPEHD AELEH000807 230V - 50Hz 0.9 7.8 400
77 700
127 AELEH000810 1,5 9,7 1200
Electric preheater with electronic controls (FACTORY FITTED)
9.1 INTERNAL ACCESSORIES
A special execution is with internal heating/cooling accessories possible on request. Due to the continuous e󰀨ort to
enlarge the accessory range this list might be not complete/updated. For more details see specic IOM of accessories
on internet site.
Size Item ref. number Supply Capacity
[kW] Current [A] Air ow rate
[m3/h]
47
IDXD
AHDGASDXD18
230V - 50Hz
2,7 0.4 400
77 AHDGASDXD20 4.5 0.7 700
127 AHDGASDXD22 6,1 1.2 1200
Direct expansion coil with electronic controls (SIDE MODULE)
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance

16 12.21
DRAWN
CHECKED
ENG APPR
MGR APPR
Classe di tolleranza*:
ISO 2768-M
*Ove non diversamente specificato
NAME
Tech. Dept.
DATE
01/10/14
NAME:
SIZE
A2
FILE NAME: asmCORRETTOnew.dft
SHEET 1 OF 1
Material:
Name?:Material
Spessore:
asmCORRETTOnew
PROJECT:
Raggio di piega
R=1.3
Cava V10
Tutte le pieghe si
intendono a 90°
dove non
diversamente
specificato
35-40 mm
25-30 mm
10 ANTIFROST
To prevent heat exchanger freezing, in winter, the
ventilation unit has an automatic ow unbalancing system.
Temperature sensors measure the air temperature before
entering the heat exchanger and, if necessary, the air
ow coming from outside is temporarily reduced. The ow
unbalance activates with downstream temperature <=
3°C and the fresh air ow rate is decreased proportionally
to reach a safe temperature at the way out the heat
exchanger side exhaust air. The maximum ow unbalance
permitted is 75%
11 CONDENSATE DRAIN
It is important that the air handling unit is installed
horizontally. The condensate drain must be connected to a
site drain / siphon with water trap or an on-site condensate
pump. During operation there may be a negative pressure
up to 500 Pa (equivalent to a 50mm water column) enter
in the ow. In this case, the di󰀨erence in height must be
50mm minimum in the siphon. Please follow the indication
on illustration to choose the right height in the siphon. The
condensate drain must be airtight from the unit.
Sizing of the siphon
Operation
pressure in
[Pa] divided
by 10 =
height [mm]
Operation
pressure in [Pa]
multiplied by
0.075 = height
[mm]
Internal condensate pump
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SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance
The unit is equipped with a water pump (internal). The
manufacturer can not be held responsible for any damage
occurring due to non-compliance with the provisions. The
siphon must be installed at the exit of the pipe from the
unit. A constant slope of at least 1cm / m, frost-free must
be ensured up to the nal discharge, to protect against
freezing until the end of the air is over. The installer is
responsible for ensuring that the condensate drain is free
from frost.
Important! Check one day before winter start-up, whether
water is in the condensate hose.

12.21 17
DECLARATION OF CONFORMITY
Manufacturer : Avensys Srl
Legal Address : Via Mondalino 8 , 25070 Preseglie (BS) Italy
Description of the product : SG size 47, 77, 127 ventilation unit complete with heat recovery
We declare that mentioned product above comply with following EC-directives and EN-standards:
93/37/EC , 2006/42/EC EC
Machinery Directive
2004/108/EC
EC EMC Directive , Electro Magnetic Compatibility
2006/95/EC
EC Low Voltage Directive
EN 60204-1 Safety Of Machinery - Electrical Equipment Of Machines - Part
1: General Requirements
EN 12100:2010 Safety of machinery ; basic concepts; general principles for
design
EN 60034-5 Rotating electric machinery ; part 5 : Protection classication for
electrical machinery
EN 60335-1 Electric domestic products and similar - safety general require-
ments
EN 60335-2-80 Electric domestic products and similar - safety general part 2:
special requirements for fans
Place and date : Sordio , 29.01.18
Signature :
Nicola Morganti
(Technical Manager)
Avensys Srl
CE DECLARATION
Avensys srl reserves the right to make changes without prior notice
SG MANUAL - Heat Recovery unit Installation - Operation - Maintenance