Control Outline - Toshiba MMD-UP0481HFP-UL Service Manual

8. CONTROL OUTLINE

■ Indoor unit
Control specifications
NO. item
1 When power (1) Distinction of outdoor unit
supply is reset
(2) Setting of indoor fan speed
(3) If resetting the power supply during occurrence of a trouble, the check code is
2 Operation mode (1) Based on the operation mode selecting command through the remote control,
selection
3 Remote (1) Temperature adjustment range
controller
temperature
setting
(temperature of
discharge air
(TF))
Capacity control
4
of the Fresh air
intake unit
System
configuration
Outline of specifications
When the power supply is reset, the outdoor units are distinguished and the
control is selected according to the distinguished result.
Based on EEPROM data, select setting of the indoor fan speed.
once cleared.
After On/OFF button of the remote control was pushed and the operation was
resumed, if the abnormal status continues, the check code is again displayed on
the remote control.
the operation mode is selected.
Remote control command
STOP
FAN
COOL
HEAT
The outdoor unit is Super Multi u series one.
Operation mode
55.4°F[13°C] to 77°F[25°C]
COOL
64.4°F[18°C] to 86°F[30°C]
HEAT
The outdoor unit is the other model than Super Multi u series one.
Operation mode
60.8°F[16°C] to 80.6°F[27°C]
COOL
60.8°F[16°C] to 80.6°F[27°C]
HEAT
The outdoor unit
to be connected
Always operates at maximum capacity.
Combination with other
The Thermo-Off will be activated only when
indoor units
Forced Thermo-OFF conditions are satisfied.
Based on the difference between TF and Ts,
and the amount of temperature change, the
operation capacity is determined by the
Fresh air intake to command the operating
frequency to the outdoor unit.
1) COOL opertion
TF(n)-Ts(n) : Temperature difference
n : Times of detection
All Fresh air intake
TF(n-1)-TF(n) : Temperature change
connection
amount
2) HEAT operation
Ts(n)-TF(n) : Temperature difference
amount n : Times of detection
TF(n)-TF(n-1) : Temperature change
amount
The Thermo-Off will be activated only when
Forced Thermo-OFF conditions are satisfied.
Control outline
Air conditioner stops.
Fan operation
Cooling operation
Heating operation
Adjustment range Setting at shipment
64.4°F[18°C]
77°F[25°C]
Adjustment range Setting at shipment
64.4°F[18°C]
77°F[25°C]
For Super Multi u series
- 19 -
Remarks
TF : Temperature of
discharge air
For other models than Super Multi u series
Always operates at maximum capacity.
The Thermo-Off will be activated only when
Forced Thermo-OFF conditions are satisfied.
TF : Temperature of
discharge air
Ts : Temperature set by
remote controller