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n If the compressor moves to an incorrect fre-
quency range within 15 minutes, a safety shut-
down occurs and the unit shows "E6"
n If there is a malfunction, the malfunction is dis-
played coded. See the "Outdoor unit malfunc-
tion display" table
1
Fig. 22: Check key on the outdoor unit's board
1: Check key
Query operating statuses
The SW1 "Check" key is located on the control board in the outdoor unit. You can use this key to query dif-
ferent operating statuses. Pressing it multiple times takes you to the dif
ferent parameter levels (see table
below):
Item Display Description
0 Standard display Current compr. freq. or malfunct. display
1 Number of indoor units detected Current value
2 Operating mode (coded)
Standby:0, Recirculation mode:1, Cooling
mode:2, Heating mode:3 Force mode for test
purposes:4 Defrosting:5
3 Indoor unit A connected load
The load is displayed in HP. If no unit is con-
nected or detected, the display shows the fol-
lowing: “
――” (2.0 kW=0.8 HP, 2.6kW=1.0 HP,
3.5 kW=1.2 HP, 5kW=1.5 HP)
4 Indoor unit B connected load
5 Indoor unit C connected load
6 Indoor unit D connected load
7 Indoor unit E connected load
8 Indoor unit A power requirement
Current value*HP 2.0 kW=0.8 HP, 2.6kW=1.0
HP
, 3.5 kW=1.2 HP, 5kW=1.5 HP)
9 Indoor unit B power requirement
10 Indoor unit C power requirement
11 Indoor unit D power requirement
12 Indoor unit E power requirement
13 Total power requirement of all indoor units
14
Current frequency requirement depending on the
total power requirement
15 Frequency limit
16 Frequency that is transferred to the compressor
35
35


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