Engineering Data Guide

18 General information
PTAC
6RWU0-02A
Electric Heater
Electric heaters are used in cold regions when instant heating is
required in the room.
In such cases, electric heaters are preferred over heat pump models
which sometime require long time to achieve the desired heating
effect.
Electric Heater are of two types – Coil Heater and PTC Heater
Deice Control
When the unit starts operating in the heating mode, then, to protect the outdoor unit pipe from freezing, “deice” control is
used. By exercising this control, the cycle is reversed into the cooling mode; to deice or defrost the condenser tubes in the
outdoor unit.
Air Ventilation
Air ventilation is carried out by means of a ventilation lever
from time to time to induct fresh air into the room. For the air
conditioner to maintain the best cooling conditions, the lever
must be in the closed position. And when the ventilation lever
is set in the open position, the damper opens and the room
air is exhausted while at the same time fresh air from outside
enters the room.
Energy saving Gold Fin
Heat exchangers are coated with anti-corrosive and Hydrophilic layers. It prevents the corrosion of heat exchanger.
Fins remain new for a long time and the efficiency of the heat exchanger remains constant thereby saving power and
maintenance cost.
VENT
OPEN
VENT
CLOSE
Gold Fin Anti-Corrosive Treatment:
Salt Spray Test Result : After 360 hours
[ Test Standard: ASTM B-117, KS D 9502 ]
[ Aluminum]
10 mm
Pitting Corrosion
Uncoated
Aluminum
10 mm
Anti Corrosion Gold Fin
Hydrophilic
layer
Aluminum
Anticorrosion
layer
Anti Corrosion Gold Fin
• Pitting corrosion
on the surface
No corrosion
Fig : Coil Heater
Fig : PTC Heater
Features