Panasonic CS-XE9CKE Service Manual page 47

Date name
MOPMPS07
EOBENS01
EOBENS02
EOBENT01
EOBENT02
3. Low voltage operation
As counter action at low voltage where starting torque reduce, low voltage detection is done where the 2 way valve opening
time is increased.
a. Voltage memory
DC voltage detection is done once power relay is ON and before compressor start. If the detected voltage is lower than
EOBENV01, voltage condition is set to <Low voltage>. If detected voltage is EOBENV01 or higher, voltage condition is
set to <Normal>. (Judgement is done every time power relay is ON).
b. Action
Voltage condition judge as <Low voltage>.
• • • • Oxygen enrich start control outdoor air temperature EOBENT01(02) is shifted by adding EOBENT03 and 2 way valve
start control activation range is enlarge.
• • • • Oxygen enrich start control 2 way valve open duration EOBENS01(02) is increased by adding EOBENS03.
EOBENT01 + EOBENT03
EOBENT02 + EOBENT03
T
Date name
EOBENV01
EOBENT03
EOBENS03
E. Oxygen Enrich Stop Control
• • • • Masking stopping sound of vacuum pump.
• • • • Blow out residual water in the tube.
Action outline
• • • • Vacuum pump : O supply level → 0, vacuum stop after EOTteisi second.
2
• • • • OD fan : After vacuum pump stop, OD fan stop after OTfan1 second.
• • • • 2 way valve
: As O
2
(Note: EOTteisi varies as outdoor air temp. change)
Vacuum pump operation start delay time
Oxygen enrich start control 2 way valve operation time (Ave)
Oxygen enrich start control 2 way valve operation time (Low)
Oxygen enrich start control, outdoor air temperature
Oxygen enrich start control, outdoor air temperature
Outdoor air temp. T
T
T EOBENT01 + EOBENT03
EOBENT02 + EOBENT03
Low voltage judgement DC voltage
Low voltage start control, outdoor air temp. shift valve
Low voltage start control, 2 way valve activation prolong time
supply level → 0, 2 way valve ON for EOTteisi second and then OFF.
Description
Valve ON duration
EOBENS01 + EOBENS03
EOBENS02 + EOBENS03
Description
47
CS-XE9CKE CU-XE9CKE / CS-XE12CKE CU-XE12CKE
Data
30s
30 min
30 min
-5°C
-10°C
0
Data
180V
+10°C
40 min