Electra DELTA 18, Service Manual

Page: 4 / 110

1-1
INTRODUCTION
SM DELTA 1-E.0 GB
1. INTRODUCTION
1.1 General
The new DELTA split wall mounted is based on the compact range. It comprise the ST
(cooling only) and RC (heat pump) models, as follows:
Cooling Only: •
DELTA 18ST, DELTA 21ST, DELTA 24ST
Heat Pump: •
DELTA 18RC, DELTA 21RC, DELTA 24RC
The indoor DELTA units are available as LED display types, featuring esthetic design,
compact dimensions, and low noise operation.
1.2 Main Features
The DELTA series benefits from the most advanced technological innovations, namely:
R410A refrigerant
Micro processor control.
Infrared remote control with LED display.
Indoor large diameter cross flow fan, allowing low operation sound level.
Bended Indoor coil with treated aluminum fins and coating for improved efficiency.
High COP.
Easy access to the interconnecting tubing and wiring connections.
Refrigerant pipes can be connected to the indoor unit from 5 different optional
directions.
The units are equipped.
Water condensate tray is equipped with two optional drain connections.
Automatic treated air sweep.
Low indoor noise levels.
Easy installation and service.
1.3 Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential and
commercials applications.
It includes:
Casing with air inlet and outlet grills.
A large-diameter tangential fan.
Bended coil with treated aluminum fins.
Motorized flaps.
3-speed motor with internal protection.
Advanced electronic control box assembly.
Interconnecting wiring terminal block.
Mounting plate.