Haier HSU18VH7 manual Note Sequence of defrosting actions

Air conditioner Edition: 100070808

Note: Sequence of defrosting actions:

9(or 7)minutes

Compressor ON OFF

Four-way valve ON

OFF

Outdoor fan	ON
	OFF

55s	55s
1min	1min

3.2.7Freezing prevention function

Under refrigerating and dehumidifying state, the air conditioner will control the outdoor fan as per the temperature Tp of the indoor coil pipe according to the following conditions:

	Zone of return deference
Compressor,outdoor fan OFF after 5 minutes		Fan,compressor ON
0	7	Tp(℃.)

3.2.83 minutes stand-by time

When the compressor ceases due to the sensor OFF, unit On or OFF or fault, it will maintain pause for 3 minutes.

3.2.9Overload protection during heating running

Temperature protection of indoor coil pipe: Under heating state, the air conditioner will control the running of the fan as per the temperature Tp of the indoor coil pipe and according to the following conditions:

a. 58℃≤Tp, outdoor fan ceases; Tp≤54℃, outdoor fan resumes; the time from ceasing to resuming is about 45 seconds;

b. 68℃≤Tp, outdoor fan of compressor ceases after 5 seconds; Tp≤47℃, compressor resumes after 3 minutes.

Current protection (different models have different protection currents):

a. When 13.0A ≤current of compressor, outdoor fan cease; current of compressor ≤11.7A, outdoor fan resume;

3.2.10Compensatory function of power failure

If the unit is suddenly off during running due to power failure, or closed for maintenance or troubleshooting, it will restart to run after the power resumes with the original condition before the unit is off

Note: a. Function setting: Pressing the SLEEP button on the remote control unit for 10 times until hearing 4 sounds from the buzzer on the panel.

b. Memory content: Running mode, setting wind speed, setting

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