Table of contents
Installer and user reference guide
2
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1B – 2019.02
Table of contents
1 General safety precautions 3
1.1 About the documentation .......................................................... 3
1.1.1 Meaning of warnings and symbols.............................. 3
1.2 For the user ............................................................................... 3
1.3 For the installer.......................................................................... 3
1.3.1 General ....................................................................... 3
1.3.2 Installation site ............................................................ 4
1.3.3 Refrigerant .................................................................. 5
1.3.4 Brine............................................................................ 6
1.3.5 Water .......................................................................... 6
1.3.6 Electrical ..................................................................... 6
2 About the documentation 7
2.1 About this document.................................................................. 7
For the installer 8
3 About the box 8
3.1 Overview: About the box ........................................................... 8
3.2 Heat reclaim ventilation unit ...................................................... 8
3.2.1 To unpack the heat reclaim ventilation unit................. 8
3.2.2 To remove the accessories......................................... 9
3.2.3 To handle the heat reclaim ventilation unit ................. 10
4 About the units and options 10
4.1 Overview: About the units and options...................................... 10
4.2 Identification .............................................................................. 10
4.2.1 Identification label: Heat reclaim ventilation unit......... 10
4.3 About the heat reclaim ventilation unit ...................................... 10
4.4 Combining units and options ..................................................... 11
4.4.1 Possible options for the heat reclaim ventilation unit.. 11
5 Preparation 11
5.1 Overview: Preparation............................................................... 11
5.2 Preparing the installation site .................................................... 11
5.2.1 Installation site requirements for the heat reclaim
ventilation unit ............................................................. 11
5.3 Preparing the unit ...................................................................... 12
5.3.1 To install the optional adapter PCB ............................ 12
5.3.2 To install the duct joints .............................................. 13
5.4 Preparing electrical wiring ......................................................... 13
5.4.1 Wiring connection ....................................................... 13
5.4.2 Component electrical specifications............................ 13
5.4.3 Specifications for field supplied fuses and wires......... 13
5.5 Preparing the installation of the ducts ....................................... 14
6 Installation 15
6.1 Service space: Heat reclaim ventilation unit.............................. 15
6.2 Unit orientation .......................................................................... 15
6.3 To install the anchor bolts ......................................................... 16
6.4 Duct connections....................................................................... 16
6.5 Electrical wiring ......................................................................... 17
6.5.1 Precautions when connecting the electrical wiring ..... 17
6.5.2 Opening the switch box............................................... 17
6.5.3 Electrical connections for additional field supplied
damper........................................................................ 20
6.5.4 Power supply connection, control wire terminals and
switches on the PCB................................................... 20
6.5.5 Guidelines when connecting the electrical wiring ....... 21
7 System configuration 21
7.1 About control systems ............................................................... 21
7.2 Independent system .................................................................. 22
7.3 Linked operation control system................................................ 23
7.4 Central control system............................................................... 23
8 Configuration 23
8.1 Operating procedure .................................................................. 24
8.1.1 To change settings....................................................... 24
8.2 List of settings ............................................................................ 25
8.3 Settings for all configurations ..................................................... 29
8.3.1 About setting 19(29)-0-04 and 19(29)-0-05 ................. 30
8.3.2 Independent system..................................................... 30
8.3.3 1-group linked-control system...................................... 30
8.3.4 Linked control with more than 2 groups ....................... 30
8.3.5 Direct duct connection ................................................. 31
8.3.6 Central control system ................................................. 31
8.4 About the controller .................................................................... 33
8.4.1 Controller for VRV system air conditioner.................... 33
8.4.2 Controller for heat reclaim ventilation units.................. 34
8.5 Detailed explanation of settings ................................................. 35
8.5.1 To monitor the unit's operation..................................... 35
8.5.2 About fresh-up operation ............................................. 35
8.5.3 About the external damper operation........................... 36
8.5.4 About the CO2 sensor ................................................. 36
8.5.5 About nighttime free cooling operation ........................ 38
8.5.6 About the precool and preheat function....................... 38
8.5.7 About preventing a feeling of draft............................... 39
8.5.8 About 24-hour ventilation ............................................. 39
8.5.9 About the ultra-low setting ........................................... 39
8.5.10 About the electrical heater operation ........................... 39
8.5.11 About external linkage input......................................... 39
8.5.12 About filter contamination check .................................. 39
9 Commissioning 39
9.1 Overview: Commissioning.......................................................... 39
9.2 Precautions when commissioning .............................................. 39
9.3 Checklist before commissioning................................................. 39
9.4 Checklist during commissioning ................................................. 40
9.4.1 About the test run......................................................... 40
10 Hand-over to the user 40
11 Maintenance and service 40
11.1 Overview: Maintenance and service .......................................... 40
11.2 Maintenance safety precautions................................................. 40
11.2.1 To prevent electrical hazards....................................... 40
11.3 Checklist for maintenance of the heat reclaim ventilation unit ... 41
12 Troubleshooting 41
12.1 Overview: Troubleshooting......................................................... 41
12.2 Precautions when troubleshooting ............................................. 41
12.3 Solving problems based on error codes ..................................... 41
12.3.1 Error codes: Overview ................................................. 41
13 Disposal 42
14 Technical data 42
14.1 Wiring diagram: Heat reclaim ventilation unit ............................. 42
For the user 43
15 Controller 43
16 Before operation 43
17 Energy saving and optimum operation 43
18 Maintenance and service 43
18.1 Maintenance of the air filter ........................................................ 43
18.2 Maintenance of the heat exchange element .............................. 44
19 Troubleshooting 44
20 Relocation 45
21 Disposal 45
