Panasonic S-200PE2E5 Technical Data & Service Manual page 93

Ending Defrosting
Defrosting operations are ended when the following conditions are satisfied.
• Ending defrosting conditions
(a) When the temperature of the outdoor heat exchanger temperature sensor (C1) is 10°C or higher.
(b) When the temperature of the outdoor heat exchanger temperature sensor (C1) is 6°C or higher for consecutive
60 seconds.
(c) When a maximum of 15 minutes defrosting time has elaped.
9) Outdoor Unit Fan Control
The appropriate rotations per minute for the outdoor unit fan are determined in accordance with the ambient
temperature and the frequency of the compressor inverter.
The outdoor unit fan step is controlled between a range of W1 (Step 1) and WF (Step 15).
10) Outdoor Unit's Electrical Expansion Valve Control
The electrical expansion valve controls the amount of refrigerant that is allowed to flow in accordance with the
operation status.
The valve is adjusted in accordance with the discharge temperature (TD), the outdoor heat exchanger
temperature sensor (C1), the suction temperature sensor (TS), and the indoor unit's heat exchanger
temperature sensors (E1 and E2).
(1) Cooling Mode
Controlled so that the suction temperature (TS) - indoor heat exchanger temperature minimum (E1 and E2)
is between 0 degree and 2 degrees under normal conditions.
There are cases where the aperture opens wider than normal operation if the discharge temperature increases.
(2) Heating Mode
Controlled so that the suction temperature (TS) - outdoor heat exchanger temperature (C1) is between
0 degree and 2 degrees under normal conditions.
There are cases where the aperture opens wider than normal operation if the discharge temperature increases.
11) Demand Control
There is a demand terminal as normal equipment in the outdoor unit.
Demand control can be selected as the following table.
Input current should be DC24V, 10mA
Connecting wiring must be used ''shield wiring".
Short-circuit
LV1-COM LV2-COM
0 0
0 1
0 0
* The operational current is restricted to either A% or B% as a general indicator during demand input.
• A% and B% can be amended in calibrations of 5% between 70% and 100% with the outdoor unit's
maintenance remote controller.
For details on how to amend the parameters, see the chapter on the outdoor maintenance remote
controller, (refer to the section "6-6. Settings Modes : Setting the Outdoor Unit EEPROM").
• A% value amendments: Parameters are amended with item code "1A" (demand 1).
• B% value amendments: Parameters are amended with item code "1B" (demand 2).
LV3-COM
0 No ristricted
Rated current restricted to A% (A% = 75% at factory shipment)
0 Rated current restricted to B% (B% = 50% at factory shipment)
1 Control OFF
4-7
Control (range of operations)
4