Control Outline - Toshiba MMU-UP0031YHP-ETR Service Manual

5. CONTROL OUTLINE

Control Specifications
No. Item
1 When power
supply is reset
2 Operation
mode selection
3 Room temp.
control
Outline of specifications
1) Distinction of outdoor unit
When the power supply is reset, the outdoors are
distinguished and the control is selected according to the
distinguished result.
2) Setting of indoor fan speed and existence of air direction
adjustment
Based on EEPROM data, select setting of the indoor fan
speed and the existence of air direction adjustment.
3) If resetting the power supply during occurrence of a
trouble, the check code is once cleared. After ON/OFF
button of the remote controller was pushed and the
operation was resumed, if the abnormal status continues,
the check code is again displayed on the remote controller.
1) Based on the operation mode selecting command from the
remote controller, the operation mode is selected.
Remote
controller
command
STOP Air conditioner stops.
FAN Fan operation
COOL Cooling operation
DRY Dry operation
HEAT Heating operation
AUTO • TA and Ts automatically select COOL/
(Heat recovery
HEAT operation mode for operation.
system outdoor
• The operation is performed as shown in
unit type)
the following figure according to TA value
at the first time only.
(In the range of Ts – 1 < TA < Ts + 1,
Cooling thermostat OFF (Fan) / Setup air
volume operation continues.)
thermostat ON
+1.0
Cooling thermostat OFF
TA
Ts
(at the first time only)
(˚C)
–1.0
Heating
thermostat ON
∗ Only Heat recovery system outdoor unit type can select
automatic mode. While a wireless remote controller is
used, the mode is notified by "Pi Pi" (two times) receiving
sound and the alternate flashing of [TIMER
[READY ]. To clear the alternate flashing, change the
mode on the wireless remote controller.
1) Adjustment range: Remote controller setup temperature (˚C)
COOL/DRY
Wired type 18 to 29
Wireless type 17 to 30
Control outline
Cooling
] and
HEAT AUTO∗
18 to 29 18 to 29
17 to 30 17 to 30
- 19 -
Remarks
TA: Room temp.
Ts: Setup temp.
∗ For Heat recovery
system outdoor unit
type