Specifications

155
Capacirty
Full load
Partial load
Ferquency (Hz)
10020 3035 40 45 50 55 60 70 80 90
(6) Control of compressor capacity
When the load is set as low as less than 35Hz of full load operation frequency
(1)
to expand the capacity control range in the low
load area, a Partial load
(2)
(full load conversion frequency:23Hz to 35Hz) is selected. (20V F : OFF, 20V U : ON)
Also, when the full load conversion frequency comes to over 35Hz
during a Partial load operation, a full load operation is selected.
The compressor starts with a Partial load all the time and, after 15
seconds, selects the load and the frequency according to the
demand(decision) frequency.
Notes (1) Full load operation frequency:
35Hz~95Hz(every 5Hz)
(2) Partial load operation frequency:
35Hz~45Hz(every 5Hz)
(3) The change-over occurs when 5 minutes of more
operation time has passed.
OFF
53
ON
Outdoor air temperature (˚C)
(5) Snow fan control
Set the dip switch SW3-3 on the outdoor unit control circuit board to ON, and the outdoor fan of a standing unit is operated at
the Hi speed for 10 seconds every 10 minutes when the outdoor air temperature drops below 3°C.
(b) Operation of functional components in defrosting
Defrosting start
Defrosting
Finishing of
defrosting,
start defrosting
Finishing of
defrosting
Heating
1 min.
1 min.
4 min.
Frequency
Target Hz
Outdoor unit fan ON
or
OFF
ON
or
OFF
ON
or
OFF
ON
or
OFF
ON
or
OFF
5 sec.
5 sec.
ON
ON
or
OFF
[Indoor unit electronic
expansion valve (EEV)]
Heating unit
(include, pause)
to Hz
<Pause, stop>
(Open of about
70 Pulse)
to Hz
<Pause, stop>
(Open of about 70 Pulse)
Full open
(480 Pulse)
Full open
(480 Pulse)
Full open
COOL, DRY unit
(include, pause)
to Hz
<Pause, 0>
Closed
to Hz
<Pause, Closed>
FAN unit,
Stop unit and COOL, DRY unit
Closed, 0
Closed
ON
or
OFF
Heating
Heating
Defrosting operation
65Hz
65Hz
95Hz
Designated Hz
1'45" 1'45"
00
ON
Solenoid valve
(SV
L,SVS)
4-way valve
(20SL,SS)
Output of heating
(c)
When any of the following conditions is met, the defrosting finishing operation will start.
1) When the temperature of the heat exchanger thermistor (Th
O-R) increases adove 20°C
2) When 12 minutes has passed after start of defrosting.
Conditions for finishing defrosting