Part 2 Functions & Controls
5.10 DC Peak control
5.10.1 DC Peak Current Error by a fault signal of IPM
•If the operating current of IPM reaches 35A 3A, the compressor stops instantly.
•If DC PEAK occurs 5 times within 1 hour, the appliance turns off and displays Error Code 6(9,12kBtu/h Model) / Error Code 21(18,24,30kBtu/h Model).
5.10.2 DC Peak Current Error by the compressor lock
•If the DC LINK voltage below DC 140V occurs 5 times within 1 hour while the compressor is operating, the appliance turns off and display Error Code 6(9k,12k Model) / Error Code 23(18k,24k,30k Model).
5.10.3 DC Peak Current Error by the Outdoor Fan Lock
•If this problem occurs 5 times within 1 hour in case of the temperature of outdoor pipe TH is over 65°C(149°F) while the compressor is operating, the appliance turns off and displays Error Code 6(9,12kBtu/h Model) / Error Code 61(18,24,30kBtu/h Model).
5.11 Discharge Pipe Temp Control
5.11.1 9,12kBtu/h Model
•If the temperature of the discharge pipe of compressor reaches over 130°C(266°F) or below
•The compressor operating frequency is limited according to the compressor dome TH. (Refer to below Fig.)
•Temperature range of COMP SPEC varies by 10°C(50°F).
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| ∆T = (T off - T2)/2 | ||||
T off °C |
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| T1 = T2 | - 2 * ∆T | |
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| T3 = T2 | + ∆T |
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T3 °C |
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T2 °C |
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T1 °C |
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COMP Freq. Fh min | Free | OFF | Free |
T off : 110°C(230°F) ( Model by model )
T2 : 100°C(212°F) ( Model by model )
NOTE: Some Models are different by T1, and T2.
Service Manual 25