Backup Operation - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 243 Monday, November 6, 2000 4:13 PM
SiE-05C

4.17 Backup Operation

If a STD outdoor unit is faulty, if you restart with the remote controller after it stops due to malfunction, the
system starts operating again without the faulty STD outdoor unit.
Backup operation can be used up to a total of 3 hours of indoor unit operation. When 3 hours elapses, if the
malfunction continues, the unit stops again due to malfunction. If it returns to normal, it can continue to
operate as is.
After the system stops due to malfunction to let you know the system is faulty, backup operation is started
by remote controller.
Three hours after starting backup operation for the reason given above, malfunction detection is once
again carried out, and the system stops due to malfunction if a malfunction still exists.
(All indoor units in the system stop.)
<In case of cooling only system>
Functions PLUS Series
(Control flow of backup operation)
Restart malfunction
Operation of faulty STD outdoor unit
Compressor
Faulty STD OFF
outdoor unit
Compressor
Faulty STD OFF
outdoor unit
Other outdoor units carry out normal operation.
Malfunction occurs
System malfunction stop
Remote controller reset
Backup operation start
Operation without faulty outdoor unit
3 hours elapse
< Malfunction detection >
No malfunction
Returns to normal operation
(VF122)
Outdoor unit fan Outdoor unit EEV
H + ON 0 PLS
Outdoor unit fan Function unit's solenoid valve Y5, Y6, Y7
H + ON
: http://splitoff.ru/tehn-doc.html
Outline of Control
Hot gas bypass
ON
ON
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