Toshiba MMW-AP0271LQ-E Service Manual page 18

No. Item
9 Defrosting While the outdoor unit is engaged in defrosting control, thehot water modules
control perform the following control tasks:
1) Close the hot water module PMV to a certain degree and open the SV valve.
As defrosting control comes to an end, it gives way to heating refrigerant (oil)
recovery control.
(For control details, see "Heating refrigerant (oil) recovery control" above.)
10 Short intermittent 1. For 5 minutes after startup, the system is forced to continue operating even if it
operation reaches the thermo OFF region.
compensation 2. However, priority is given to cooling / heating selection, operation standby, and
control protective control, so that there is no overriding of thermo OFF in these cases.
11 Operation <Operation standby> .......... Displayed on remote controller
standby 1. When any of the DN codes listed below is displayed
Heating standby • "P05" - Detection of an open phase in the power supply wiring
• "P10" - Detection of indoor flooding in at least one indoor unit with the exception of
• "L30" - Detection of an interlock alarm in at least one indoor unit
2. The system is engaged in a heat refrigerant (oil) recovery operation.
<Heating standby> .......... Displayed on remote controller
1. Normal thermo OFF
• During heating, the indoor unit goes thermo OFF as the heating temperature
2. Forced thermo OFF
• "HEAT" operation is unavailable because at least one indoor unit is operating in
12 Selection of 1. The range of operations that can be performed via an indoor unit remote controller
central control can be determined through the setting of the central controller.
mode 2. Setting details
TCC-Link central control
the hot water module.
setting is reached.
"COOL / DRY" mode .
Specification
– 18 –
Remarks
• For defrosting
commencement
conditions, see 5
Control Outline "7.
Defrosting control
(reverse defrosting
method)" in SMMS-i
Outdoor Unit Service
Manual A10-005
above.
• "OPERATION
STANDBY "
displayed
• "HEATING
STANDBY "
displayed
• In the case of a wired
remote controller,
"CENTRAL
CONTROL IN
PROGRESS " is
displayed (lit up)
while in central
control mode.
• The display blinks
when a control
function inaccessible
to a remote controller
is chosen.