Pioneer WAE012AMFI15RL Service Manual page 35

8.4.3.3 Indoor fan running rules
T2
TEL8
TEL7
TEL6
TEL5
TEL4
TEL3
TEL2
TEL1
TEL0
If the compressor stops due to the room
temperature rise, the indoor fan will be forced to
run 127 seconds with breeze speed. During this
period, the anti-cold (warm Start) is disabled.
If the machine runs in rating capacity test mode,
the indoor fan will run with rated speed and the
anti-cold (warn Start) function is disabled.
Auto fan action in heating mode:
Low
2.5
2
Medium
1.5
1
8.4.3.4 Defrosting mode
Condition of defrosting:
----T4＞0℃,
When the units are running, if the following two
items are satisfied, the units start defrosting:
The units run with T3＜3℃ for 40 minutes and
T3 stays lower than TCDI℃ for more than 3
minutes.
Setting
Medium
Low
Breeze
Super
Breeze
Off
High
The units run with T3＜3℃ for 80 minutes and
T3 stays lower than TCDI+2℃ for more than 3
minutes.
----T4＜0℃,
st
If the 1 condition and 2
satisfied, then the program judges if T2 has
decreased more than 5℃. When T2 has
decreased more than 5℃, system will enter the
defrost mode.
----No matter what value T4 is, if the machine
runs with T3＜3℃ for more than 120 minutes
and T3 keeps lower than TCDI+4℃ for more
than 3 minutes, the machine will enter the
defrost mode no matter if T2 drops by more
than 5℃ or not.
Condition of ending defrosting:
If any one of the following items is satisfied, the
defrosting will finish and the machine will turn to
normal heating mode.
----T3 rises to be higher than TCDE1℃.
----T3 keeps to be higher than TCDE2℃ for 80
seconds.
----The machine has run for 10 minutes in
defrosting mode.
Defrosting action：
For 9k,12k models:
on
Compressor
off
on
4-way valve
off
on
Outdoor fan
off
on
Indoor fan
off
Indoor fan breeze(10s)
xx=60s.
33
nd
condition items are
Frequency F2 FrequencyF8
10s
xx
10s
30s
no longer than 10m