Indoor Unit Control Of The Electronic Control Valve - Panasonic U-10MF1E8 Service Manual

10. Indoor Unit Control of the Electronic Control Valve

10-1. Normal Control
(1) Except Type E1
Remote
Mode
Controller
Cooling
Heating
Auto
Auto. Cooling
Auto. Heating
Fan
Stop
(1) Type E1
Remote
Mode
Controller
Cooling
Heating
Auto
Auto. Cooling
Auto. Heating
Fan
Stop
*1 The SH target value is controlled so that the difference [E3 - E1] can become 2 - 6°C, depending on the
operation conditions. However, a decline in the required level may cause the SH target value to increase.
Be aware that in this case, the electronic control valve is intended to close and this will be wrongly identified
as gas shortages.
*2 The SC target value is controlled so that the difference [pressure temp. sensor E1] can become 5 - 20°C,
depending on the operating conditions.
*3 In the case of the common use electronic valve kit and more than one (1) indoor unit in the heating mode
within the same electronic valve kit, performs the control of returning the liquid refrigerant
gradually into the outdoor unit in the range of 55 - 80 pulses.
*4 The SC target value is controlled so that the difference [pressure temp. sensor - E1] can become 5 - 20°C,
depending on the operating conditions. However, if installation is combined with the except type E1,
the value is controlled so that the difference [pressure temp. sensor - E1] can become 5 - 40°C.
Thermostat ON Performs SH control in the range of 55 - 480 pulses. *1
Thermostat OFF 20 pulses
Thermostat ON Performs SC control in the range of 55 - 480 pulses. *2
Thermostat OFF Returns the liquid refrigerant gradually into the outdoor
unit in the range of 55 - 80 pulses.
Thermostat ON Performs SH control in the range of 55 - 480 pulses. *1
Thermostat OFF
20 pulses
Thermostat ON
Performs SC control in the range of 55 - 480 pulses. *2
Thermostat OFF Returns the liquid refrigerant gradually into the outdoor
unit in the range of 55 - 80 pulses.
20 pulses *3
20 pulses *3
Thermostat ON Performs SH control in the range of 55 - 480 pulses. *1
Thermostat OFF 20 pulses
Thermostat ON Performs SC control in the range of 55 - 480 pulses. *4
Thermostat OFF 20 pulses
Thermostat ON
Performs SH control in the range of 55 - 480 pulses. *1
Thermostat OFF 20 pulses
Thermostat ON Performs SC control in the range of 55 - 480 pulses. *4
Thermostat OFF 20 pulses
20 pulses
20 pulses
1 - 23
Position of electronic control valve
Outdoor unit operation
Position of electronic control valve
Outdoor unit operation
3-WAY SYSTEM
Control Functions
Outdoor unit
stopped
20 pulses
1
85 pulses
20 pulses
20 pulses
85 pulses
85 pulses
20 pulses
20 pulses
Outdoor unit
stopped
20 pulses
20 pulses
20 pulses
20 pulses
85 pulses
20 pulses
20 pulses
20 pulses