Rossato AIR COMBO EVO Instruction Manual

AIR COMBO EVO
MANUAL OF USE, INSTALLATION AND MAINTENANCE

MIUM – AIR COMBO EVO – Rev. 1.2 Pag. 1
M0SE00001-05 – 05/2023 Data: 15/05/2023
MIUM - AIR COMBO EVO
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These instructions are intended for both the installer and the end user.
Failure to observe the instructions in this manual will result in the guarantee being invalidated.
These instructions contain essential and important information for a safe and perfect installation and are an integral and essential part of the product.
The entire technical documentation is therefore subject to custody and must always accompany the product. All data and instructions in this manual
refer to the current level of technology.
Please always consult the instructions in this manual when installing.
The activities described in these instructions require specialist knowledge and training in the field of system installation.
Consequently, the described installation work should only be carried out if the technical requirements indicated are met. The diagrams used are purely
indicative and make no claim to completeness and are not intended to replace the design. Although this manual has been produced with the utmost
care, errors and updates are possible; Rossato S.p.A. shall not be held responsible for inaccuracies or omissions.
The contents, images, text, layout of this document are the property of Rossato S.p.A. and may not be reproduced in whole or in part without written
permission.

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TABLE OF CONTENT
1) INTRODUCTION ...................................................................................................................................... 8
1.1 Generalities ................................................................................................................................................................. 8
1.2 General information and precautions on using the machine ....................................................................................... 8
1.3 Responsabilities .......................................................................................................................................................... 9
1.4 Symbology and terminology used in the manual ........................................................................................................ 9
2) PRESENTATION .................................................................................................................................... 10
2.1 Intended use .............................................................................................................................................................. 10
2.2 Serial number label .................................................................................................................................................. 10
2.3 Features ..................................................................................................................................................................... 11
2.4 Regulatory references ............................................................................................................................................... 11
2.5 Standards for service and proper functioning ........................................................................................................... 11
3) HAZARDS AND PROTECTIONS .......................................................................................................... 13
3.1 Prohibited uses and contraindications ....................................................................................................................... 13
3.2 Safety protections ..................................................................................................................................................... 13
3.2.1 Personal protective equipment ............................................................................................................................... 13
3.3 Fire extinguisher and first aid ................................................................................................................................... 14
4) HANDLING OF THE MACHINE ........................................................................................................... 15
4.1 Handling .................................................................................................................................................................... 15
4.2 Lifting ....................................................................................................................................................................... 15
4.3 Packaging removal .................................................................................................................................................... 15
4.4 Lifting and transporting ............................................................................................................................................ 16
4.5 Handle for handling .................................................................................................................................................. 16
4.6 Inspection .................................................................................................................................................................. 17
5) MAIN COMPONENTS ........................................................................................................................... 18
6) INSTALLATION ..................................................................................................................................... 30
6.1 Lighting .................................................................................................................................................................. 31
6.2 Functional spaces – installation in a closed space .................................................................................................. 31
6.3 Electrical socket ..................................................................................................................................................... 32
6.4 Condensate drain .................................................................................................................................................... 32
7) HYDRAULIC CONNECTIONS .............................................................................................................. 33
7.1 Hydraulic connections ............................................................................................................................................ 34
7.2 Pipe connections .................................................................................................................................................... 35

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8) AERAULIC CONNECTIONS ................................................................................................................. 37
8.1 Possible installations .............................................................................................................................................. 37
8.2 Ducted intake and exhaust (recommended) ........................................................................................................... 37
8.3 Ducted (conditioned) suction ................................................................................................................................. 37
8.4 Ducted (conditioned) expulsion ............................................................................................................................. 38
8.5 Aeraulic design criteria .......................................................................................................................................... 38
8.6 Connections ............................................................................................................................................................ 39
8.7 Anti-intrusion grid for small animals by the customer .......................................................................................... 41
8.8 Water features ........................................................................................................................................................... 42
9) ELECTRICAL CONNECTIONS ............................................................................................................. 43
9.1 Gestione SMART GRID – Fotovoltaico ................................................................................................................ 44
9.2 Wiring diagram– AIR COMBO EVO 200 ............................................................................................................. 45
9.2.1 Components and wiring diagram description – AIR COMBO EVO 200 .............................................................. 46
9.3 Wiring diagram– AIR COMBO EVO 300 ............................................................................................................. 47
9.3.1 Components and wiring diagram description – AIR COMBO EVO 300 .............................................................. 48
10) MESSA IN FUNZIONE ........................................................................................................................ 49
10.1 Preliminary checks ................................................................................................................................................ 50
10.2 Checks after installation ......................................................................................................................................... 51
10.3 Installation site ...................................................................................................................................................... 51
10.4 Refrigeration circuit .............................................................................................................................................. 51
10.5 Hydraulic circuit .................................................................................................................................................... 51
10.6 Aeraulic circuit ..................................................................................................................................................... 52
10.7 Electrical circuit .................................................................................................................................................... 52
10.8 Voltage verification - absorption ........................................................................................................................... 53
10.9 Power socket ......................................................................................................................................................... 53
10.10 Test run - water filling before start-up ................................................................................................................ 53
11) INFORMATION ON OPERATION ....................................................................................................... 54
12) DEFROSTING DURING WATER HEATING .................................................................................... 55
13) TCO and ATCO ..................................................................................................................................... 55
14) BASIC FUNCTIONS ............................................................................................................................................. 56
14.1 Holiday mode ......................................................................................................................................................... 56
14.2 Weekly anti-legionella function ............................................................................................................................. 56
14.3 Electrical resistance ................................................................................................................................................ 56

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14.4 Start-up report ........................................................................................................................................................ 57
15) MAINTENANCE ................................................................................................................................................... 58
15.1 Recommended Periodic Checks Sheet ................................................................................................................... 58
15.2 Recommended Periodic Checks Sheet ................................................................................................................... 58
15.3 Set-aside ................................................................................................................................................................. 58
15.4 Power supply .......................................................................................................................................................... 59
15.5 Electronic anode ..................................................................................................................................................... 59
15.6 Filter cleaning ......................................................................................................................................................... 59
15.7 Condensate drain .................................................................................................................................................... 60
15.8 Storage tank ............................................................................................................................................................ 61
15.9 Tank emptying ........................................................................................................................................................ 61
15.10 Replacement or verification of resistance ........................................................................................................... 62
15.11 Battery ................................................................................................................................................................. 63
15.12 Safety valve ......................................................................................................................................................... 63
15.13 Expansion valve ................................................................................................................................................... 64
15.14 Structure ..................................................................................................................................................64
15.15 Start-up after a long period of inactivity ............................................................................................................. 64
16) RESIDUAL RISK .................................................................................................................................................. 65
16.1 Generalities ............................................................................................................................................................. 65
16.2 Danger zone ............................................................................................................................................................ 65
16.3 Handling ................................................................................................................................................................. 65
16.4 Installation ............................................................................................................................................................. 66
16.5 Generic risks .......................................................................................................................................................... 66
16.6 Electrical part ......................................................................................................................................................... 66
16.7 Moving organs ........................................................................................................................................................ 67
16.8 Refrigerant .............................................................................................................................................................. 67
16.9 Hydraulic part ......................................................................................................................................................... 67
16.10 Disconnection ...................................................................................................................................................... 67
17) DISMISSION - EC WEEE Directive ..................................................................................................................... 68
18) DISMANTLING / DISPOSAL .............................................................................................................................. 69
19) GENERAL TECHNICAL DATA ......................................................................................................................... 70
19.1 Dimenions (AIR COMBO EVO 200, 200S) ......................................................................................................... 70

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19.2 Dimenions (AIR COMBO EVO 300, 300S) ......................................................................................................... 71
19.3 Electrical data ......................................................................................................................................................... 74
19.4 Operating limits ...................................................................................................................................................... 74
20) SOLAR SYSTEM (by the customer) .................................................................................................................... 75
21) SOLAR SYSTEM (by the customer) .................................................................................................................... 76
22) MODBUS PROTOCOL) ..............................................................................................................................78
23) PRODUCT DATA SHEET ................................................................................................................... 83
24) DECLARATION OF CONFORMITY .................................................................................................................. 87

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LIST OF PICTURES
Picture 1 – Personal protective equipment .................................................................................................... 13
Picture 2 – Protection removal ...................................................................................................................... 15
Picture 3 – AIR COMBO EVO 200 .............................................................................................................. 18
Picture 4 – AIR COMBO EVO 200 .............................................................................................................. 20
Picture 5 – AIR COMBO EVO 200 .............................................................................................................. 22
Picture 6 – AIR COMBO 300 ....................................................................................................................... 24
Picture 7 – AIR COMBO 300 ....................................................................................................................... 26
Picture 8 – AIR COMBO 300 ....................................................................................................................... 28
Picture 9 – functional spaces ......................................................................................................................... 31
Picture 10 – indicative hydraulic scheme (Standard unit) ............................................................................. 35
Picture 11 – indicative hydraulic scheme (unit with solar integration) ......................................................... 36
Picture 12 – Unit connections 200 / Picture 12A– Unit connections 300 ..................................................... 38
Picture 13 - Connections ................................................................................................................................ 39
Picture 14 – anti-intrusion grid ...................................................................................................................... 41
Picture 15 – anti-intrusion grid ...................................................................................................................... 61
Picture 16 – Tank emptying ........................................................................................................................... 62
Picture 17 – Dimenions AIR COMBO EVO 200, 200S ............................................................................... 70
Picture 18 – Dimenions AIR COMBO EVO 300, 300S ............................................................................... 71

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LIST OF TABLES
Table 1 – Symbology and terminology ........................................................................................................... 9
Table 2 – Standards for service and proper functioning ................................................................................ 12
Table 3: Components list AIR COMBO EVO 200 ....................................................................................... 19
Table 4: Components list AIR COMBO EVO 200 ....................................................................................... 21
Table 5: Components list AIR COMBO EVO 200 ....................................................................................... 23
Table 6: Components list AIR COMBO EVO 300 ....................................................................................... 25
Table 7: Components list AIR COMBO EVO 300 ....................................................................................... 27
Table 8: Components list AIR COMBO EVO 300 ....................................................................................... 29
Table 9: hydraulic scheme components (Standard unit) ................................................................................ 35
Table 10: hydraulic scheme components (unit with solar integration) .......................................................... 36
Table 11 - concentration constraints .............................................................................................................. 42
Table 12 - Components and wiring diagram description – AIR COMBO EVO 200, 200S .......................... 46
Table 13 - Components and wiring diagram description – AIR COMBO EVO 300, 300S .......................... 48
Table 14 – Preliminary checks ...................................................................................................................... 50
Table 15 – checks after installation ............................................................................................................... 50

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1) INTRODUCTION
1.1 General information
This manual refers to AIR COMBO EVO heat pump water heater and provides instructions for transport,
installation, assembly, control and use of the unit. It also provides information for maintenance work,
the presence of residual risks and instruction to personnel.
1.2 General information and precautions on using the machine.
This manual is designed to provide the user with a general knowledge of the machine and the
maintenance instructions considered necessary for its proper operation.
Please follow the instructions below:
• All operators and personnel involved in the use and maintenance of the unit must read this manual
entirely and with the utmost attention and comply with its contents.
• Store the manual in areas protected from humidity and heat and consider it an integral part of the unit
throughout its life, handing it over to any other user or future owner of the unit.
• Keep this manual together with the wiring diagram in a place accessible to the operator. Make a note
of the unit's identification data so that it can be provided to the service centre in the event of a service
request (see section "Service label 2.2"). Provide a machine booklet to keep track of the maintenance
works carried out on the unit; this will make it easier to keep track of the various operations and
facilitate troubleshooting.
• Do not damage, remove, tear or rewrite the manual or parts of it for any reason. In the event that the
manual is lost or partially damaged and it is therefore no longer possible to read its contents in full,
we recommend that you request a new manual from the manufacturer, stating the serial number of
the machine on the data plate.
Rossato S.p.A. has the right to update production and manuals, without the obligation to update previous
versions, except in special cases.
This manual reflects the state of the art at the time the unit was placed on the market and cannot be
considered inadequate simply because it was subsequently updated to reflect new technology.
To request any updates to the user manual or additions, which will be considered an integral part of the
manual, please send your request to the contact details given in this manual.
Please contact the manufacturer for further information and any proposals for improving the manual.
The manufacturer invites you, in case of transfer of the unit, to indicate the address of the new owner in
order to facilitate the transmission of any additions to the manual to the new sender.