Toshiba MMC-P0151H, Руководство по обслуживанию

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3-35
Compressor-
OFF
COOL
+2
+1
Ts
–1
SD
SB
S9
S7
S0
S5
S3
Compressor
OFF
HEAT
+1
Ts
–1
–2
S3
S5
S7
S9
SB
SD
SF
S0
Item
4. Automatic
capacity control
Operation explanation and applied data, etc.
(1) Based upon difference between Ta and Ts, the operation
frequency is indicated to the outdoor unit.
Remarks
Ts : Set up temp.
Ta : Room temp.
NOTE :
The operation frequency in the above zone differs according to
horse power or protective control of the outdoor unit.
6. Air volume
control
5. Capacity
correction
control
7. Prevention of
cold air
discharge
(1) In heating operation, the indoor fan is controlled based upon the
detection temperature of TC2 (Temperature sensor of indoor
heat exchanger).
A zone : Set air volume from
remote controller
B zone : Low air
C zone : OFF
Duct : Air volume “FIX”.
“STOP” controls
prevention of cold air
discharge by TC2.
“PRE-HEAT/DEFROST”
go on.
HIGH
HIGH
MED.
MED. LOW
LOW
COOL HEAT
Ts
+1
+2
–1
–2
Ts
+1
Ultra LOW
(Compressor-OFF)
20
16
26
A
B
C
30
(˚C)
(1) Frequency correction control
Frequency of the outdoor unit is corrected so that the present
capacity reaches to the certain specified capacity.
(2) PMV opening correction control
PMV opening is corrected so that the refrigerant status of the
indoor unit becomes most appropriate status.
(1) By the command from the remote controller or the central
controller, “HIGH”, “MED.”, “LOW”, or “AUTO” operation is
executed.
(2) The status becomes “Ultra LOW” and “STOP” when thermostat
is turned off during heating operation.
(3) While air volume is in AUTO mode, the air volume is changed
according to the difference between Ta and Ts.