18
Bef
ore
Operation
Handling
19
See page
20
See page
21
See page
22
See page
Checking Initial Operating Conditions
Turn ON the power supply for the Oil
Cooling Unit.
Is “U1” displayed on the control panel?
Check the initial operating conditions.
Changing operation settings
Is the “Operation lock” mode selected?
Cancel the operation lock mode.
It means reverse-phase connection.
Exchange two phases out of three
phases (L1, L2 and L3).
(1) Operation mode display
: Displays the operation mode.
(2) Data display
: Displays the target temperature setting.
Check the current operation settings on the control panel display.
With the standard model, the factory setting of the operation mode is “3” (Room temperature tuning, Tank liquid
temperature control), and the temperature difference is “0.0 (K)”.
(With non-standard models, the factory settings may be different from the above.)
Holding constant tank liquid temperature
Tuning tank liquid temperature to room temperature (or machine temperature)
Cooling liquid in the tank at constant capacity (%)
Check the indication on the control panel.
The DAIKIN factory setting is the “Operation lock” mode.
∗
1: You hear tick sound after power-ON, while the electronic
expansion valve is under initial setup. This does not mean a
fault.
∗
2: For initial setup of the electronic expansion valve and the
microprocessor, the Oil Cooling Unit takes 60 to 90 seconds.
After the initial setup, cooling operation starts (the compressor
runs).
∗
The “Operation lock”
mode locks the Oil
Cooling Unit, and disables
any key operation other
than operation lock cancel.
If you keep pressing the and keys
simultaneously for two seconds, the Oil Cooling
Unit starts operation.
Keep pressing
these keys
simultaneously for
two seconds.
Operation lock mode
Normal mode
YES
YES
NO
NO
(1)
(2)
Example) Room temperature: 35˚C
PIM00132A_EN.fm 18 ページ ２００７年９月２０日 木曜日 午後３時４分
