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18 General information
PTAC
6RWU0-06A
Electric Heater
Electric heaters are used in cold regions when instant heating is
required in the room.
In such cases, electric heater is preferred over heat pump models which
sometimes require long times to achieve the desired heating effect.
Coil Heater (208-230V,265 V) has different heater capacity according to
models.
Defrost Control
When the unit starts operating in the heating mode outdoor unit start freezing, to protect from freezing, Defrost Control is
used. Defrost operation take place when pipe temperature reaches
0℃(32℉). Defrost condition operates minimum 3minutes and maximum 9minutes for complete one cycle.
Air Ventilation
Air ventilation is carried out by means of a ventilation lever from time
to time to induct outdoor 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.
Air flow during vent door open condition for different capacity
as follows.
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.
Ventilation door
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
Features
Type/Capacity 2kW / 3kW / 5kW 2.7kW / 4kW
Coil Heater(208-230 V) 7K 9K 12K 15K -
Coil Heater(265 V) - 7K 9K 12K 15K
Model
Air Flow
m 3 /min (CFM)
High Low
7K 6.9 (246) 6.0 (214)
9K 8.4 (298) 6.6 (235)
12K 12.7 (448) 11.3 (402)
15K 13.1 (462) 11.3 (402)