Toshiba RAV-GM 801UT-E Service Manual page 89

(2) Maintenance inspections Special operations (SW01 and SW02 operations)
The following special maintenance and inspection operations can be carried out using the service switches
SW01 and SW02.
[Method of operation]
1) Ensure the LED display shows the initial state. If not then please ensure to return it to the initial state.
2) Push and hold down SW01 for at least 5 seconds. D804 will start slowly flashing.
3) Push SW01 until reaching the LED display function you wish to set.
Special
operations
Refrigerant
D800 D801 D802 D803 D804
recovery
operation
PMV fully
D800 D801 D802 D803 D804
open operation
PMV fully
D800 D801 D802 D803 D804
closed
operation
PMV
D800 D801 D802 D803 D804
intermediate
open operation
Indoor heating
D800 D801 D802 D803 D804
test command
Indoor cooling
D800 D801 D802 D803 D804
test run
command
Forced fan
D800 D801 D802 D803 D804
motor
operation
4 way valve
D800 D801 D802 D803 D804
relay operation
: Go ON : Go OFF
Note 1 : The operations can take place while the equipment is on but it is better if it has been turned off first.
A sudden change in pressure could occur while the operations are taking place, which can be
dangerous.
Note 2 : Trial indoor cooling operation request/trial indoor heating operation request
Cooling/Heating test operations can only take place from the outdoor unit when combined with
the following indoor units. ensure to utilize the outdoor unit.
Test runs supported : 5 series or later indoor units
Not supported
Caution) Forced test operations using this setting cannot be cancelled using the indoor remote
4) Push SW02 until D805 starts rapidly flashing.
5) Push and hold down SW02 for at least 5 seconds. D804 will start slowly flashing and D805 will turn on
and the special operation will take effect.
6) To invalidate any of the various settings push and hold down SW01 and SW02 at the same time for at
least 5 seconds. D800 to D804 will be off (or rapidly flashing) and D805 lit up (initial state: current trouble
indication) and the special operation will have been disabled (normal control).
∗ If any uncertainty arises then push and hold down SW01 and SW02 at the same time for at least 5
seconds. You will return to step 1).
LED display
: Flash (5 times/sec)
: Indoor units other than above. In addition, any when twin connections
include any other indoor units than above.
control. Refer to (6) below.
The outdoor unit performs cooling operations. Indoor units do not operate
with just this operation and hence do any fan only operations in advance.
PMV (Puls Motor Valve) fully opens. Perform step 6) below or returns to
normal control after 2 minutes.
PMV (Puls Motor Valve) fully closed. Perform step 6) below or returns to
normal control after 2 minutes.
Sets the PMV (Puls Motor Valve) to intermediate open (500 pulses).
Perform step 6) below or returns to normal control after 2 minutes.
Performs a heating test run. Carrying out step 6) below returns to normal
control.
Performs a cooling test run. Carrying out step 6) below returns to normal
control.
Forcibly operates the fan motor. Perform step 6) below or returns to normal
control after 2 minutes.
Turns on the 4 way valve relay. Perform step 6) below or returns to normal
control after 2 minutes.
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Control content
(Refer to 1.)
(⇒ Note 1)
(⇒ Note 1)
(⇒ Note 1)
(⇒ Note 2)
(⇒ Note 2)
(⇒ Note 1)
(⇒ Note 1)