Mitsubishi Heavy Industries EEVKIT6-E-C/A User Manual

EEVKIT6-E-C/A, /B
Manual No.'19・KX-T-336
TECHNICAL MANUAL
EEV-KIT
For single refrigeration system
Preliminary information, all of contents are subject to final confirmation by MHI.
In this manual, For multiple refrigeration system of EEV-KIT is shown.
Regarding the others manual please see below table.
General information '19
•
KX-T-335
No.
'19
•
KX-T-337 For multiple refrigeration system (EEVKIT6-E-M/A, /B, -C/A, /B)
Manual
updated February 24, 2021

Mitsubishi Heavy Industries EEVKIT6-E-C/A Specifications

General

Brand	Mitsubishi Heavy Industries
Model	EEVKIT6-E-C/A
Category	Refrigerator
Language	English

Summary

1. Understanding Single Refrigeration Systems

1.1 System A Configuration

Details System A, utilizing one EEV-KIT for a single heat exchanger indoor unit.

1.2 System B Configuration

Details System B, using multiple EEV-KITs for indoor units with multiple heat exchangers.

2. System Components

System Component Details

Lists the essential components of a single DX AHU refrigeration system.

3. Functions and Operation

3.0 Wiring Diagram

Illustrates the electrical connections for the EEV-KIT system.

3.1 Address Setting (SW1-SW5)

Explains how to set indoor and outdoor unit addresses using rotary and DIP switches.

3.2 Model Capacity Selection (SW6)

Guides on setting the model capacity based on heat exchanger capacity using SW6.

3.3 Function Setting (SW7)

Details how to set various functions like test run and temperature adjustments using SW7.

3.4 Air Temperature Control Methods

Covers return air and supply air temperature control modes and their settings.

3.4.1 Return Air Temperature Control

Explains the return air temperature control method and thermo ON/OFF control.

3.4.2 Supply Air Temperature Control

Details supply air temperature control, including target settings and thermo ON/OFF.

3.4.3 Cooling Supply Air Temperature Settings

Specifies target supply air temperature and low pressure settings for cooling.

3.4.4 Heating Supply Air Temperature Settings

Specifies target supply air temperature and high pressure settings for heating.

3.5 Heating Mode Target Air Temp Adjustment

Explains how to adjust target supply air temperature in heating mode with SW7-2.

3.6 Auto Mode Changeover Temperature

Describes how to change the switching temperature between cooling and heating modes.

3.7 Automatic Supply Air Temperature Adjustment

Details automatic adjustment of target pressure based on room temperature.

3.8 Free Cooling Control

Explains the function for controlling the by-pass damper for free cooling in cooling mode.

3.9 Wired Remote Control Function Settings

Details the various function settings available via the wired remote control.

4. Outdoor Unit Specifications

4.1 Target Pressure Adjustment

Explains how to adjust the target pressure difference for EEV kits.

4.2 Target Pressure Change Procedure

Provides the procedure for changing target pressure via the 7-segment display.

5. Summary

Key System Overview

Provides a concise overview of key features and recommendations for the EEV-KIT system.

6. Indoor Unit Control PCB Replacement

PCB Replacement Safety and Procedure

Guides on safety precautions and procedures for replacing the indoor unit control PCB.