Special Operation For Maintenance Check - Toshiba RAV-GM561ATP-E Service Manual

2. Special operation for maintenance check (SW01 and SW02 operations)
The following special operations for maintenance check can be performed by handling the service switches
SW01 and SW02.
[Operating method]
1) Check LED display is the initial status. If it is not so, set the initial status.
2) Push and hold SW01 for 5 seconds or more and then check D804 flashes slowly.
3) Push SW01 and then stop it at the LED display of the function item to be set.
Special operation
Refrigerant recovery
operation
PMV full open
operation
PMV full close
operation
PMV middle
opening operation
Indoor heating trial
operation command
Indoor cooling trial
operation command
Fan motor forced
operation
Self-preservation
valve suck operation
Self-preservation
valve secession
operation
: ON, : OFF,
(Note 1) Although these special operations are available even operating time, basically carry out these
operations while the machine stops. If carrying out these operations, the pressure may change
suddenly and a danger may grow.
(Note 2) Indoor trial cooling operation request / Indoor trial heating operation request
Cooling/heating trial operations are available from the outdoor unit only in combination with the
following indoor units.
Trial operation is available: Indoor units after 1 series (RAV-GM
Trial operation is unavailable: Indoor units except the above units or in case that the indoor units
except the above units are included at twin connection.
Note) The forced trial operation in this setting cannot be cleared by the indoor remote controller.
Be sure to clear it by operation of the outdoor unit (6 below).
4) Push SW02 and then stop it at point where D805 becomes rapid flashing.
5) Push and hold SW02 for 5 seconds or more. D804 changes to slow flashing, D805 changes lighting and
then the special operation becomes valid.
6) To invalidate various settings, push and hold SW01 and SW02 for 5 seconds or more simultaneously.
D800 to D804 go off (or rapid flashing), D805 goes on (Initial status: Display of error which is occurring at
present), and then the special operation becomes invalid (normal control).
* If an unknown point generated on the way of the operation, push and hold SW01 and SW02 for 5 seconds
or more simultaneously. You can return to the item 1).
LED display
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
D800 D801 D802 D803 D804
: Rapid flashing (5 times/second)
The outdoor unit performs cooling operation. As the
indoor unit does not operate by this operation only, carry
out the fan operation beforehand. (Refer to 9-3-1.)
Open PMV (Electronic expansion valve) fully.
Execute the following item 6) or the control returns to
normal operation after 2 minutes. (Refer Note 1)
Close PMV (Electronic expansion valve) completely.
Execute the following item 6) or the control returns to
normal operation after 2 minutes. (Refer Note 1)
Open PMV (Electronic expansion valve) to middle
position (250 pulses).
Execute the following item 6) or the control returns to
normal operation after 2 minutes. (Refer Note 1)
Carry out a trial heating operation.
The operation returns to the normal control by executing
the following item 6). (Refer Note 2)
Carry out a trial cooling operation.
The operation returns to the normal control by executing
the following item 6). (Refer Note 2)
Operate the fan motor forcedly.
Execute the following item 6) or the control returns to
normal operation after 2 minutes. (Refer Note 1)
GM56, 80 : switch to cooling cycle
This function is operated only by ten seconds, and
turned off afterwards.
GM110, 140 : switch to heating cycle
This function is operated only by ten seconds, and
turned off afterwards.
GM56, 80 : switch to heating cycle
This function is operated only by ten seconds, and
turned off afterwards.
GM110, 140 : switch to cooling cycle
This function is operated only by ten seconds, and
turned off afterwards.
****
- 85 -
FILE NO. SVM-18043
Control contents
* *
1 T )