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1.
General
Congratulations on your new explosion-safe AR-053 rooftop air conditioner. If you follow the
instructions in this user manual, your new air conditioner will give you years of enjoyment.
The rooftop air conditioning system consists of a combined outdoor unit and indoor unit with
fixed control panel. In function the system refrigerates air. The air conditioning system
provides a continuous flow of cold fluid which decreases the temperature of the heat
exchanger, which in its turn absorbs the energy of the air, resulting in a room air temperature
decrease. The control panel enables the user to operate the unit.
The part of the air conditioning system situated on the outside consists of a sheet steel
enclosure and contains a heat exchanger, a hermetically sealed compressor and a pressure
regulated expansion valve for controlling the refrigerant. The sheet steel enclosure and non-
metallic cover are partly part of the protection degree against ignition applied.
The electronically driven fans provide air flow on both sides of the system. The printed circuit
board (PCB) controls all components on both sides of the system.
The control panel is mounted against the ceiling on the inside of the room. It contains the
thermostat and a switch to control the fan speed. The circuits to the thermostat and the fan
control are intrinsically safe.
The ambient temperature allowed for the apparatus is -20 °C to +60 °C. The operational
temperature of the rooftop air conditioner is +7 °C to +52 °C.
2.
Safety Instructions
The rooftop air conditioning series AR-053 is an explosion-safe product
suitable for use in hazardous areas with explosion hazard from flammable
gases, vapors and mist, classified as Zone 2.
This manual must be read and understood for safe use of the air conditioning split unit. All
warnings and instructions must be followed.
•
Installation must be carried out by personnel trained and qualified in explosion safety
taking the instructions mentioned on the equipment and in this manual into
consideration. Local regulations that apply to the installation must be followed.
•
Only connect this equipment to the correct voltage and mains frequency for which it is
designed.
•
Isolate electrical power to the air conditioning unit before electrical installation.
•
The plastic covers on the indoor side and outdoor side of the unit can be electrostatically
charged. Only use a damp cloth to clean the cover. Do not use solvents.
Installation manual AR-053 explosion-safe rooftop air conditioning system
E
11-2024
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