Pump Down Operation
SiE 00-07
182
Special Service Mode R-407C PLUS Series
2. Pump Down Operation
2.1
Pump Down Operation
Pump down operation is carryed out when refrigerant is moved to outdoor unit if the indoor unit is
neccessary to disconnect or replacing. In this case, outdoor unit operates in the cooling mode and
indoor unit’s electronic expansion valves open for 30 minutes.
2.1.1
Method
1. Fully shut the liquid side stop valves. (Leave fully open the gas side stop valve)
2. Set to pump down mode in setting mode 2 as per table below and execute pump down
operation.
Outdoor unit operate for approximately 30 minutes.
3. After unit stopping, shut the stop valve of the gas pipe.
Setting of Pump Down Mode
Setting Method
LED Display
H1P H2P H3P H4P H5P H6P H7P
Hold down the Mode button for 5 seconds to change to setting
Mode 2.
8
7
7
7
7
7
7
Push SET button and select LED display to “Pump down
operation”.
8
7
7
8
8
8
7
Push the RETURN button.
8
7
7
7
7
7
9
Push SET button and select LED display as shown right.
8
7
7
7
7
9
7
Push the RETURN button twice to start operation.
8
9
7
9
7
7
7
7
7
7
8
7
7
7
During pump down operation, low pressure
level is displayed as shown right.
Over 0.343MPa
8
8
8
8
8
8
8
Below 0.343MPa
8
8
7
7
8
8
8
Below 0.245MPa
8
8
7
7
7
8
8
Below 0.147MPa
8
8
7
7
7
7
8
Pump down operation completed
Final pressure level is shown with blinking or H2P is shown ON.
8
8
9
9
9
9
9
Push MODE button once to complete this procedure.
8
7
7
7
7
8
7
Содержание FXYBP20K7V1
Страница 1: ...System R 407C PLUS Series Service Manual SiE 00 07 ...
Страница 11: ...Introduction SiE 00 07 x ...
Страница 17: ...Product Outline SiE 00 07 6 General Information R 407C PLUS Series ...
Страница 41: ...Specifications SiE 00 07 30 Specifications R 407C PLUS Series ...
Страница 90: ...SiE 00 07 Test Operation Test Operation R 407C PLUS Series 79 1 3 Outdoor Unit PC Board Ass y Outdoor Unit ...
Страница 119: ...Test Operation SiE 00 07 108 Test Operation R 407C PLUS Series ...
Страница 132: ...SiE 00 07 Troubleshooting by Remote Controller Troubleshooting R 407C PLUS Series 121 ...
