II - 11
2. Preparations and checks before operation
(1) Preparations for operating the outdoor unit
Removing the outdoor unit panel
• Turn on the breaker to supply power.
Crankcase heater 5 hours’ preliminary energization check
• Touch the lower part and the bottom surface of the compressor with your hand, and con
fi
rm that it is warm.
• Turn on the power, and the display “
” will appear. As time passes the display will count down, and
after 5 hours have passed the display will show the operating time.
Check that the operating time is displayed.
* If a fault occurs, it will be shown on the display as a priority.
* Precaution for after the power is turned on
•
Initial communication is performed between the indoor and outdoor units for approximately 3 minutes after the
power is turned on, so do not perform operations such as changing the settings of the outdoor unit during that time.
Outdoor unit main board
Using the keys for display and setting operations
• All display and setting operations can basically be performed with the three keys UP (S005), DOWN (S006),
and SET (S007).
• A six-digit, seven-segment LED display (IC021, 022, and 037 to 040) is used for displaying items.
• Press the HOME (S004) key anytime to restore normal display.
Key operation basics
• To select a menu item, use the UP (S005) or DOWN (S006) key to display the item, and then press the SET
(S007) key to select the item.
• To change a setting value, use the UP (S005) or DOWN (S006) key to display a value, and then press the SET
(S007) key to con
fi
rm the value.
• If the SET (S007) key is pressed for 1 second while operation data is displayed, the forced setting is canceled.
Selecting setting items
a) Press the UP (S005) or DOWN (S006) key to display the menu item to set. (While a menu item is being
changed or after a menu item is being changed, the number of the menu item is displayed for approximately 1
second and the display switches to the state or setting value.)
b) Press the SET (S007) key after the menu item is displayed to select that item.
* Press the HOME (S004) key anytime to restore the normal display of the “
” menu item. At that time,
any partial setting will be discarded. Also, if no operation is performed for 10 minutes, the normal display of
the “
” menu item is restored automatically, and any partial setting is also discarded.
Menu Item
Text Display
Overview
↑
DOWN
UP
↓
Operation data display (forced setting release, data setting)
Error data display (error reset, log displays)
Oil change time display (change time clear)
Model display (double-speed setting)
Test run/outdoor unit forced setting
Outdoor unit setting
Indoor unit setting
Generator setting
Forced engine rpm setting
Indoor unit status displays
Initial setting
Date Display
CAUTION
Operating without having carried out 5 hours'
preliminary energization can cause unusual stop
and compressor breakdown.
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2012/05/22 11:08:05
2012/05/22 11:08:05
