Specific Operation For Maintenance Check - Toshiba Carrier RAV-SP180AT2-UL Service Manual

4) Specific operation for maintenance check (SW801, SW804)
The following specific operations for the maintenance check are performed by operation of SW801 or
SW804.
a) Select DIP switch SW804. (See table below)
b) Push the pushdown button switch SW801 for approx. 1 second.
c) The following functions start. While each function starts, LED D805 (Green) flashes.
d) When pushing the pushdown button switch SW801 again for approx. 1 second, when selecting DIP
switch SW804 or when the specified time of each function elapsed, each function stops and
LED D805 (Green) returns to the continuous lighting.
<Specific operation>
SW804
Refrigerant recovery operation
SW804
The outdoor unit performs cooling operation. The indoor unit does not work by this operation
alone. Therefore operate the fan beforehand.
Indoor cooling test run demand
SW804
The cooling test run is performed. (→ Note 1)
Indoor heating test run demand
SW804
The heating test run is performed. (→ Note 1)
Fan motor forced operation
SW804
Drive the fan motor forcedly.
When pushing SW801 again or when 2 minutes elapsed, the
operation returns to the normal control.
(No operation especially)
SW804
PMV full open operation
SW804
Open PMV (Pulse Motor Valve) fully.
When pushing SW801 again or when 2 minutes elapsed, the
operation returns to the normal control.
SW804 PMV full close operation
Close PMV (Pulse Motor Valve) fully.
When pushing SW801 again or when 2 minutes elapsed, the
operation returns to the normal control.
SW804 PMV middle opening operation
Set PMV (Pulse Motor Valve) to middle opening (250 pulses).
When pushing SW801 again or when 2 minutes elapsed, the
operation returns to the normal control.
Note 1) Indoor cooling test run demand / Indoor heating test run demand
Only when combining with the following indoor unit, cooling/heating operation can be performed from
the outdoor unit. Test run is available: Indoor unit (4-Way, Under ceiling, High wall)
Test run is unavailable: Indoor units other than the above-mentioned indoor units.
Note 2) The forced test run by this setting cannot be cleared on the indoor remote controller.
Be sure to clear the test run by operation of the outdoor unit. (Push SW801 again for 1 second.)
Operation when pushdown button switch SW801 is pushed
– 80 –
[NOTE]
Although these operations can
be performed even during
operation, basically perform
operation while the unit stops.
If performing this operation
during driving the unit, it is
dangerous because the
pressure may change suddenly.