Test Run - Toshiba RAV-GM802ATW-E Installation Manual

10

Test run

• Turn on the leakage circuit breaker at least 12 hours before starting a test run to protect the compressor
during startup.
To protect the compressor, power is supplied from the 220-240 VAC(single phase model) / 380-415 VAC(three
phase model).
• Check the following before starting a test run:
• That all pipes are connected securely without leaks.
• That the valve is open.
If the compressor is operated with the valve closed, the outdoor unit will become over pressurized, which may
damage the compressor or other components.
If there is a leak at a connection, air can be sucked in and the internal pressure further increases, which may cause
a burst or injury.
• It is recommended to perform the test run in the "Test run" mode. While performing the test run, the initial conditions
such as installation conditions will be memorized. Refer to the installation manual of the indoor unit or remote
controller for how to start "Test run".
• "Test run" function runs maximum 60 minutes. After 60 minutes, it is automatically stopped. It is recommended to
set the indoor unit to the maximum fan speed while operating in "Test run" mode.
• If the indoor and outdoor conditions do not meet the condition (table below), "The initial state" will not be
memorized, "The Initial state" will be memorized the next time the unit operates in "Test run" mode. We
recommend "Test mode" operation when indoor and outdoor conditions are satisfied.
"The initial state": The refrigerant cycle condition when first installed (e.g. pipe length, indoor unit type, and so on)
<Table of recommended test run condition>
<GM80, GM90>
29°C ≤ Outdoor temperature < 39°C
Cooling
18°C ≤ Indoor temperature < 32°C
-5°C ≤ Outdoor temperature < 7°C
Heating
17°C ≤ Indoor temperature < 29°C
• If the cycle state is not stable, "The initial state" will not be memorized. It will be memorized next time running in
"Test run" mode.
• The maximum run time in "Test run" mode is 60 minutes. It is recommended that you do not stop during "Test run" to
stone "The Initial state" accurately.
NOTE
• This model has a refrigerant leak detection function in the "Test run" mode, and the detection accuracy is enhanced
by storing "The initial state."
• In order to enhance the accuracy of the refrigerant leak detection during regular maintenance, it is recommended to
run the unit in "Test run" mode immediately after Installation to memorize "The Initial state".
• In order to enhance the accuracy, it is recommended to set the indoor unit to the maximum fan speed while
operating in the "Test run" mode.
47-EN
<GM110, GM140, GM160>
25°C ≤ Outdoor temperature < 42°C
18°C ≤ Indoor temperature < 32°C
-5°C ≤ Outdoor temperature < 18°C
17°C ≤ Indoor temperature < 29°C
– 24 –
Refrigerant leak detection and pressure estimation function
• The refrigerant leak can be determined by the sensor temperature of the outdoor unit and the status of the pulse
motor valve. If there is significant shortage of refrigerant, it will determine that there is a leak.
• The refrigerant pressure can be estimated by the sensor temperature of the outdoor unit.
• The progress of judgment or the result of judgment can be checked by "Monitor function" of the remote controller.
The method to check the result by "Monitor function" is described in the installation manual of the remote controller
or indoor unit
• This function cannot detect slight refrigerant leakage just after installation. It is not a substitute for a leak check
during installation, so be sure to perform a leak check using the proper method.
<Service monitor codes and matters>
CODE No Data name
60 Outdoor heat exchanger (Coil) temperature (TE)
61 Outside temperature (TO)
62 Compressor discharge temperature (TD)
63 Compressor suction temperature (TS)
65 Heat sink temperature (TH)
6A Operation current (x1/10)
60 Outdoor heat exchanger (Coil) temperature (TL)
70 Compressor operation frequency
72 Outdoor fan revolution frequency
7A Pd: Estimated refrigeration cycle high pressure (x100)(*1)
7B Ps: Estimated refrigeration cycle low pressure (x100)(*1)
E3 Refrigerant leak detection status
F1 Compressor calculated operation time
*1 The estimated refrigeration cycle pressure based on the sensor temperature will be displayed only during ''Test run"
operation, but it will be displayed approximately 20 minutes after the start of "Test run" operation.
When removing the piping, check the gauge manifold for the presence of refrigerant even if the estimated pressure
value checked immediately before is zero or low.
*2 Refrigerant leak detection status
0: During initial operation or when indoor or outdoor temperature conditions are not satisfied or when the refrigeration
cycle is not stable and cannot be detected.
1: Detection has begun. Processing.
2: No refrigerant leak detected during detection for a certain period of time, but judgment is ongoing.
3: There is a possibility of refrigerant leakage.
4: No possibility of refrigerant leakage
5: The status is not known because detection could not be performed due to unsatisfactory indoor or outdoor
temperature conditions or unstable refrigeration cycle.
If the condition is 3 or 5, there may be insufficient refrigerant. Follow the service manual to check the pressure, etc.
Unit
°C
°C
°C
°C
°C
A
°C
rps
rpm
MPa
MPa
*2
x100h
48-EN