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OUTDOOR TECHNICAL OVERVIEW
B-13
ENGLISH
Operations
High Current Protection
The below table is the outdoor unit protection current and compressor current.
If the temperature reaches 150
O
F(66
O
C) three times in one hour, the
system will lock out. Reset by turning power o and back on.
Reduce FQY rapidly 2Hz/S
Reduce FQY rapidly 1Hz/S
Reduce FQY rapidly 1Hz/10S
Remain FQY
Reduce FQY slowly 1Hz/S
100%*I
98%*I
96%*I
96%*I
90%*I
88%*I
Remain FQY
Model Maximum current (I) Compressor current (CT)
2U20EH2VHA 12.5A 10A
3U24EH2VHA 13.5 14A
4U36EH2VHA
??? ???
High Pressure Protection in Cooling
If there is an abnormal stop 3 times in 1 hour, the unit
will turn o. Turn o and restore power to clear error.
Reduce FQY rapidly 2Hz/S
Reduce FQY slowly 1Hz/S
Remain FQY
Raise FQY slowly 1Hz/10S
131
O
F(55
O
C)
Tc--cooling
138
O
F(59
O
C)
144
O
F(62
O
C)
147
O
F(64
O
C)
150
O
F(66
O
C)
Remain FQY
If the temperature reaches 158
O
F(70
O
C) three times in one hour,
the system will lock out. Reset by turning power o and back on.
Reduce FQY rapidly 2Hz/S
Reduce FQY slowly 1Hz/S
Remain FQY
Raise FQY slowly 1Hz/10S
129
O
F(54
O
C)
Tc--heating
135
O
F(57
O
C)
138
O
F(59
O
C)
145
O
F(63
O
C)
158
O
F(70
O
C)
Remain FQY
High Pressure Protection In Heating
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