Mitsubishi Electric SLZ-KF18NA User Manual

SPLIT-SYSTEM HEAT PUMP
SLZ-KF09, KF12, KF15, KF18NA
English
INSTALLATION MANUAL
For safe and correct use, please read this manual and the outdoor unit installation manual thoroughly before
installing the air-conditioner unit.
FOR INSTALLER
Español
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
PARA EL INSTALADOR
Français
MANUEL D’INSTALLATION
Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil
extérieur pour une utilisation sûre et correct.
POUR L’INSTALLATEUR

Mitsubishi Electric SLZ-KF18NA Specifications

General

Type	Ceiling Cassette
Refrigerant	R410A
Outdoor Unit Noise Level	50 dB(A)
Cooling Capacity	18, 000 BTU/h
Coefficient of Performance (Heating)	4.00
Power Supply	208-230V

Summary

Installation Diagram Overview

Indoor Unit Installation Diagram

Diagram illustrating the ceiling opening and clearances required for the indoor unit installation.

Indoor Unit Installation Procedures

Ceiling Openings and Suspension Bolt Installation

Details on ceiling openings and suspension bolt placement for secure indoor unit installation.

Fresh Air Intake Duct Installation

Suspension Structure Guidelines

Guidance on building a strong and stable suspension structure for the indoor unit.

Unit Suspension Procedures

Step-by-step instructions for properly suspending the indoor unit.

Confirming Unit Position and Tightening Bolts

Procedures for aligning and securely tightening the suspension bolts for the main unit.

Refrigerant Piping Work

Refrigerant Piping Precautions

Important safety warnings regarding refrigerant handling, charging, and system integrity.

Flaring Work Procedures

Detailed procedures for performing correct flaring work on refrigerant pipes to prevent gas leaks.

Refrigerant Pipe Connection

Instructions for connecting refrigerant pipes to the indoor unit securely and properly.

Drainage Piping Work

Drainage Piping Installation

Procedures for installing the drain piping with correct slope, insulation, and connections.

Test Run Procedures

Before Test Run Checks

Performing Test Run Operations

Steps for conducting the test run using wired and wireless controllers to verify operation.

Drainage Check