2. Freeze-up prevention, vacuum pump continuous running control
•
• •
• Avoid freeze-up in tube by vacuum pump continuous running at low outdoor temp.
•
• •
• Start condition
a. OD temp status 1(a,b)
b. O
2
supply level 0
•
• •
• Control content
a. Continuous running disregard of oxygen supply level
•
• •
• Cancellation condition
−
− −
− Start condition not fulfilled
•
• •
• Exceptional condition
During deice & MOPMPS08 after deice, OD temp. status does not update as the OD fan is stop. (Air temp. detection
disable).
3. Freeze-up prevention, 2 way valve control
•
• •
• Open valve periodically to prevent freeze-up during low OD air temp.
•
• •
• Open valve duration change according to air temp. status (1a or 1b).
a. Start condition
Either one of below condition is fulfilled.
i. O
2
supply leve 0 & OD air temp status shift to 1(a,b).
49
CS-XE9CKE CU-XE9CKE / CS-XE12CKE CU-XE12CKE
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