Daikin FLY35GV1NB [22/67] 13 freeze protection function

Daikin FLY35GV1NB [22/67] 13 freeze protection function
SiE-84
14 Service Manual
(13) Freeze Protection Function
When the indoor heat exchanger temperature falls below "A"° C in cooling or program dry operation,
the compressor and the outdoor fan are forced to turn OFF, and
the indoor fan rotates at the L tap (in cooling operation) or W2 tap (in program dry operation)
Note that this function is not activated for 6 minutes after compressor turns ON
When the indoor heat exchanger reaches "B"° C, the compressor and the outdoor fan restart the operations. However, because
the compressor recycling guard timer (3-minute timer) takes priority, the compressor and the outdoor fan don't restart the operation
during this timer is ON.
(14) Overload Control
This function protects the product from excessive load during operation
1. During cooling operation
(1) When outdoor heat exchanger temperature DE is 65° C (63° C for Comp. NH41VMDT) or higher DStops the compressor.
(2) When outdoor heat exchanger temperature DE is 53° C (51° C for Comp. NH41VMDT) or lower DRestarts the compressor.
2. During heating operation
ABW2
FL25/35/40/45GV1NB
FLY22/35/40/50GV1NB
313LL
(1) When indoor heat exchanger temperature DC is
DP3 or higher.
Changes to M tap when the indoor unit fan
speed is at ML tap or lower.
(2) When 10 seconds or more elapse after the
activation of above operation (1) and indoor heat
exchanger temperature DC is DP2 or higher.
Stops the outdoor unit fan.
(3) When 10 seconds or more elapse after the
activation of above operation (2) and indoor heat
exchanger temperature DC is DP1 or higher.
Stops the compressor
(4) When 9 minutes or more elapse after the
completion of operations (1) to (3) and indoor heat
exchanger temperature DC is DP4 or lower.
Cancels operations (1) to (3), and starts the unit.
Fig. 1-6
Indoor heat exchanger temperature (° C)
Compressor and outdoor fan
6 minutes
B
A
ON
OFF
DP1
DP2
DP3
DP4
65˚C
61˚C
58˚C
53˚C
9 minutes
9 minutes
10 seconds
10 seconds
SIE2-84.book Page 14 Wednesday, May 30, 2001 10:29 AM

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