Electra DNG 18 Service Manual page 6

1.7 Outdoor Unit
The DNG outdoor units can be installed as floor or wall mounted units by using a
wall-supporting bracket. The metal sheets are protected by anti- corrosion paintwork
allowing long life resistance. All outdoor units are pre-charged. For further information,
please refer to the Product Data Sheet, Chapter 2.
It includes:
•
Compressor mounted in a soundproofed compartment :
Rotary – for DNG 18, 24, 30, 37
Scroll – for DNG 44
•
Improved 3- blades axial fans for noise reduction.
•
Outdoor coil with hydrophilic fins for RC units optimised for operation with R
410A refrigerant.
•
Fan grill air outlet.
•
Service valves" flare" type connection.
•
Service ports for high/ low pressure measurement.
•
Interconnecting wiring terminal block.
1.8 Tubing Connections
Flare type-interconnecting tubing to be produced on site.
All the units from 7KW and up can be installed with 50-meter pipe length and 25 meter
height difference without oil traps.
For further details, please refer to the Installation Manual.
1.9 Accessories
ASK (All Season Kit):
For low ambient working conditions in cooling, an ASK can be installed inside the
outdoor unit. This kit allows cooling operation down to outdoor temperature of -10 ºC by
gradually controlling the outdoor fan speed motor.
RCW Wall Mounted Remote Control
The RCW remote control is mounted on the wall, and controls the unit either as an
infrared remote control or as a wired controller. The wired controller can control up to
10 Indoor units with the same program settings and adjustments.
For further details, please refer to the Technical Service Manual.
1.10 Inbox Documentation
Each unit includes its own installation and operation manuals.
Service Manual - DNG Series Revision Y05-01
CONTENT
INTRODUCTION
1-3