Evco EVJD900N2VW - Applications Manual

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EVCO S.p.A.

EV3 HRV & EVD HRV | Application manual ver. 1.0a | Code 1443DHRVE104

page 1 of 74

EV3 HRV & EVD HRV

Controllers for mechanical ventilation

units for air renewal and

heat recovery

Application manual ver. 1.0a February 2020 | ENGLISH

Code 1443DHRVE104

Main Page

Table of Contents3
Introduction5
Models Available, Purchasing Codes and Technical Features5
Description7
Description of EV3 HRV7
Description of EVD HRV8
Description of EV3K119
Description of EVJ LCD10
Measurements and Installation11
Measurements and Installation of EV3 HRV11
Measurements and Installation of EVD HRV11
Measurements and Installation of EV3K1112
Measurements and Installation of EVJ LCD13
Models for Wall Mounting13
Models for Wall Mounting with Back-Slot for Flush Mounting Box13
Installation Precautions14
User Interface15
Key Functions15
Display16
Home Page16
Icons16
Led Evd Hrv19
Electrical Connection20
Example of EV3 HRV Electrical Connection20
Example of EVD HRV Electrical Connection21
Example 1 of EV3K11 Electrical Connection22
Example of EVJ LCD Electrical Connection23
Models for Wall Mounting23
Models for Wall Mounting with Back-Slot for In-Wall Box25
Description of Connectors26
Description of Connectors for EV3 HRV26
Description of Connectors for EVD HRV28
Description of EV3K11 Connectors29
Description of Connectors for EVJ LCD30
Termination Resistor for the RS-485 MODBUS Line31
Precautions for Electrical Connection32
Menu33
Access Levels33
Menu Settings33
Quick Menus34
Time Band Setpoint (EVJ LCD Only)34
Time Band Settings (EVJ LCD Only)34
Enabling Time Bands35
Selecting the Operating Modes36
Selecting the Heating/Cooling Mode36
Selecting the Time Band Mode36
Manual Mode (T01 = 0)36
Time Band Mode (T01 = 1)36
Holiday Mode (T01 = 2 or 3)37
Configuring a Device38
Parameters38
Configuring Inputs43
Configuring Input Functions44
Universal Input Type Configuration45
Analogue Output Configuration45
Configuring Type AO45
Exclusions46
Configuring AO Function46
Configuring Triac and Open Collector Outputs46
Configuring Digital Outputs47
Serial Ports48
Functioning of the Controller49
Regulation in the Incremental Neutral Zone49
Activating Free Heating/Cooling49
Summer Mode (Free-Cooling)49
Winter Mode (Free-Heating)49
Regulating the Ventilation50
External Air Damper50
Regulating the Recovery Heat Exchanger50
Defrosting Cross-Flow or Rotary Recovery Heat Exchanger51
Regulating the Mixing Chamber Damper51
Temperature Regulation52
Treatment Coils52
Winter Pre-Heating (Hot Start)53
Off-Band Mode Activation53
Regulating the Compressor53
Defrosting the Refrigeration Circuit54
Constant Capacity/Pressure Regulation54
CO 2 Regulation55
Humidity Regulation55
10.10.1 Winter Dehumidification55
10.10.2 Summer Dehumidification55
10.10.3 Humidification56
External Air Limitation56
Internal Status56
Signals and Alarms60
Accessories64
INTRABUS/RS-485 EVIF22ISX Serial Interface64
RS-485/USB EVIF20SUXI Serial Interface65
0025100010 Drip Protector66
CJAV Connection Kit66
Technical Specifications67

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