Toshiba MMD-UP0721HFP Series Service Manual page 25

NO. item
10 Recovery control Recovery control for cooling oil (refrigerant)
for cooling oil The indoor unit under STOP/Thermo-OFF or "FAN" operations will perform the
(refrigerant) following controls when it receives the cooling oil (refrigerant) recovery signal from
the outdoor unit.
①
(maximum 4 minutes)
②
control for 1 minute
11 Recovery control The indoor unit under STOP/Thermo-OFF or "FAN" operations will performs the
for heating following controls when it receives the heating refrigerant (Oil) recovery signal from
refrigerant (oil) the outdoor unit.
①
(maximum 20 minutes)
②
Depending on the type of indoor unit, the indoor fan, flap and drain pump may be
operated until the counted times of recovery controls will reach the specified times,
and after the completion of the recovery for about 1 minute.
(Note) Depending on the outdoor unit to be connected, the PMV, indoor fan and flap
12 Compensation (1) For 5minutes after having started operating the compressor, the operation will be
control for short forcedly continued without activating the Thermo-OFF even if the unit enters in
intermittent the Thermo-OFF conditions.
outdoor unit (2) However, the Thermo-OFF is given prior to COOL/HEAT selection, OPERATION
operation READY and protective control.
13 Elimination of (1) When the unit stopped the "HEAT" operation, the indoor fan will be operated in
retained heat "LOW" for about 30 seconds.
14 HA control (1) By connecting to a tele-converter or a remote start and stop I/F, the unit can be
remotely ON/OFF through an inputting HA signal from distnce.
(2) Outputs the ON/OFF status to the HA terminal.
(3) HA input and output specifications accordance with JEMA standard.
15 Alarm output For group control, the alarm output from the indoor board shows the status of each
setting indoor unit. The setting to let the main unit output the whole statuses including the
sub-unit is also applicable.
DN
16 Display of filter (1) When the integrated operating time of the indoor fan reached the specified
sign time (2500H), a filter replacement signal will be sent to the remote controller to
(Not provided to display on the LCD.
the wireless type) (2) When the filter reset signal is received from the remote control, the integration
timer will be cleared. In this time, if the integrated time has passed the specified
time, the measurement time will be reset and the indicator on the LCD will be
OFF.
Outline of specifications
Opens PMV of the indoor unit with a certain opening degree.
Operates the drain pump during the recovery control, and after the recovery
Opens PMV of the indoor unit with a certain opening degree.
Detects the temperature of TC2 and close the PMV.
may separately be operated following a command from the outdoor unit.
For details, refer to the service guide for the outdoor unit.
Indoor/main unit alarm output
Not include the status of the sub-unit
79
Include the status of the sub-unit
Filter time 2500H
SET DATA
0000 (at the time of shipment)
0001
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Remarks
The recovery control is
performed every 2 hours
or when the outdoor unit
determined. (It depends
on the outdoor unit to be
connected.)
The indoor unit under
COOL / Thermo-OFF
or "FAN" operation will
stop the indoor fan and
display "OPERATION
READY."
The recovery control is
performed every 2 hours
or when the outdoor unit
determined. The control
time may different for
different operating
conditions.
(According to the
outdoor unit to be
connected.)
Used for remote start
and stop command
When using the HA
terminal (CN61), an
optional connector is
required. Connect to
either the main/sub
indoor unit.
Connector: CN 61
(see Section 9.2 )
Stop operation during
the operation settings
"FILTER" displayed