Outline of Control (Outdoor Unit) < Symbols using in this manual > Si33-105
54 Function R407C PLUS Series Heat Recovery System
3.2.3 Standby due to Pe
!
Forcibly stops compressor operation just before detecting malfunction to prevent stopping
operation due to transitional drop of Pe. (Constrained automatic reset)
Contents
3.2.4 Standby due to Td
!
Forcibly stops compressor operation just before detecting malfunction to prevent stopping
operation due to transitional increase of Td. (Constrained automatic reset)
Contents
!
For 100 minutes after the first forced thermostat OFF under the above conditions, forced
thermostat OFF is conducted 2 times including the first. Third thermostat OFF is not
conducted. After 100 minutes elapsed after the first, the count turns to 0 repeating this
operation.
• In compressor operation
• Pe<0.03MPa
• Not in oil return and defrosting operation
• Elapsed time of 10 minutes or more after
oil return and defrosting operation
completion
• Elapsed time of 10 minutes or more after
startup
• Not in equalizing control
• In oil return and defrost operation
• Elapsed time of 10 minutes or less after oil
return and defrosting operation completion
• Elapsed time of 10 minutes or less after startup
• In pressure equalizing control
• In compressor operation
• Pe<0MPa
• OR
→ • Conducts forced thermostat OFF once
(turns to status of restart standby)
• For 30 minutes after the first forced thermostat OFF under the above conditions, forced thermostat OFF
is conducted 2 times including the first. Third thermostat OFF is not conducted. After 30 minutes elapsed
after the first, the count turns to 0 repeating this operation.
&
&
&
(V2560)
I
OR
• In compressor operation
• HTdi or HTds>130˚C
→ • Conducts forced thermostat OFF once
(turns to status of restart standby)
I
&
(V2561)
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