Normal Indication; Function For Indication Of Operation Condition - Hitachi RCUE40AG1 Installation, Operation And Maintenance Instructions

SELF-INSPECTION FUNCTIONS
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9.2. NORMAL INDICATION

If the unit is operated under a normal operation condition,
the operation code (refer to the table below) is indicated on
7-Segment LED's of the control panel.
No.1 No.2
cycle cycle
C1-88 C2-88
C1-Co C2-Co
C1-oF C2-oF
C1-Pu C2-Pu

9.3. FUNCTION FOR INDICATION OF OPERATION CONDITION

"
Function for Indication of Operation Condition
The setting temperature, chilled water temperature sensed
at the thermistor, the setting differential temperature and
the last alarm code are digitally indicated on the control
panel.
The Alarm Code
Occurrence Data
NOTE:
Each indication mode shall be changed from the normal mode.
"
Indication Mode of Alarm Occurrence Data
The content of abnormal stoppage including activation of
safety devices is memorised and indicated on the con
panel
Alarm Occurrence Data (Max.10 data)
@ A B C
D B E B
∇↑ ↓∆
@ A F
D G E G
↑ ↓
∇ ∆
NOTE:
If an abnormal operation is occurred under this
indication mode, this indication mode is changed to the
alarm indication mode.
Code
No.3 No.4 No.5
cycle cycle cycle
C3-88 C4-88 C5-88
C3-Co C4-Co C5-Co
C3-oF C4-oF C5-oF
C3-Pu C4-Pu C5-Pu
Normal Operation
Condition
+
"88" "Co" "oF"
-
Capacity Control
Indication
+ + + +
In case of No. 1 cycle high
pressure alarm occurrence
In case of No. 2 cycle high
pressure alarm occurrence
Content
No.6
cycle
C6-88 Power Supply, After Stoppage
C6-Co Cooling Operation
C6-oF Stoppage by Thermo-Off
C6-Pu Pump Operation Only, Warning of Pump Feedback
+
Checking
,
Indication
,
-
"
Capacity Control Indication
Example
D B H I
D G @ H
D J K C
D B L L
Press the check "∆" and "∇" switches
simultaneously for more than 3 sec.
It is changed to the normal mode by
pressing the "∆" and "∇" switches
simultaneously for more than 3 sec.
again.
Press the check "∆" switch for more
than 3 sec.
It is changed to the normal mode by
pressing the "∆" switch for more than
3 sec. again.
Press the check "∇" switch for more
than 3 seconds.
It is available only while the "∇"
switch is pressed. It changes to
normal mode after 3 seconds
automatically.
- - - -
No.1 Comp Load Up
No.2 Comp Hold
No.3 Comp Load Down
No.1 Comp Thermo-off
Starting Control