Haier 3U19FS1ERA Service Manual - Page 93

Water pump control, Compulsory defrosting operation, Trial operation, Timer operation, SLEEP

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>_]]VbTZR\ _^UZdZ_^Vb 12. Water pump control 12.1 Water pump will be electrified when indoor unit enters non-heating mode until indoor unit stops. 5 minutes later after indoor unit stops, water pump will stop. 12.2 When indoor unit is in heating mode, water pump will not operate. 12.3 In OFF state and in any mode, once float switch signal is measured, indoor unit will send OFF signal to outdoor and send the failure code of drainage system to the wired controller, then the water pump will work until the float switch signal is cancelled. After water pump is forced to run for 5 minutes, indoor unit will be back to normal state. 13. Compulsory defrosting operation 13.1 After indoor receives the compulsory defrosting signal, it will send continously the signal to outdoor for 10 times, in this period, indoor unit will work normally and it will enter defrosting operation until it receives the enter-defrost signal from outdoor unit. 13.2 Wired control type: In heating mode, make a jumper for D2 to enter compulsory defrosting. 13.3 Remote control type: In heating mode, high speed, 30℃, press SLEEP button 6 times, and the buzzer will sound 3 times, then enter the manual defrosting. 14. Trial operation 14.1 Enter condition A. Wired control type: In OFF state of COOL or HEAT mode, press ON/OFF button for over 5 seconds to enter the cooling or heating trial operation; B. Remote control type: In OFF state, keep pressing ON/OFF button until 5 seconds later, the buzzer sounds twice, then enter the cooling or heating trial operation; 14.2 Response in trial operation A. Cooling trial operation: indoor sends S-CODE=SD to outdoor, indoor: at high speed, set temp: 16℃; B. Heating trial operation: indoor sends S-CODE=SF to outdoor, indoor: at high speed, set temp: 30℃; C. In this period, anti-freezed and overheat functions are invalid. 14.3 Quit condition A. Receiving the signal of cancelling trial operation from wired controller or remote controller; B. After trial operation has run for 20 minutes, it will quit trial operation automatically and enter the normal mode with the set temp.: 24℃. 15. Timer operation 15.1 Wired control type: wired controller will control the unit ON/OFF; 15.2 Remote control type: indoor unit will confirm the unit ON or OFF according to the current clock and the timer clock set by remote controller. When setting timer function, the timer LED will be ON. 16. SLEEP function 16.1 Wired control type unit is without sleep function; 16.2 Remote control type unit consists of cooling sleep and heating sleep, after the sleep is set, the unit will change mode; the sleep will begin to count. A. In cooling/dry mode, after running for 1 hour, the set temp. will increase 1℃, another 1 hour later, the set temp. will increase 1℃ again, then 6 hours (or set time-2) later , it will stop. B. In heating mode, after running for 1 hour, the set temp. will reduce 2℃, another 1 hour later, the set temp. will reduce 2℃ again, then 3 hours later, the set temp. will increase 1℃, and another 3 hours(or set time-5), it will stop. C. When setting sleep function, indoor motor is forced at low speed. -92-

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12. Water pump control
12.1 Water pump will be electrified when indoor unit enters non-heating mode until indoor unit stops. 5
minutes later after indoor unit stops, water pump will stop.
12.2 When indoor unit is in heating mode, water pump will not operate.
12.3 In OFF state and in any mode, once float switch signal is measured, indoor unit will send OFF signal
to outdoor and send the failure code of drainage system to the wired controller, then the water pump will
work until the float switch signal is cancelled. After water pump is forced to run for 5 minutes, indoor unit
will be back to normal state.
13. Compulsory defrosting operation
13.1 After indoor receives the compulsory defrosting signal, it will send continously the signal to outdoor
for 10 times, in this period, indoor unit will work normally and it will enter defrosting operation until it
receives the enter-defrost signal from outdoor unit.
13.2 Wired control type: In heating mode, make a jumper for D2 to enter compulsory defrosting.
13.3 Remote control type: In heating mode, high speed, 30
℃
, press SLEEP button 6 times, and the
buzzer will sound 3 times, then enter the manual defrosting.
14. Trial operation
14.1 Enter condition
A.
Wired control type: In OFF state of COOL or HEAT mode, press ON/OFF button for over 5 seconds to
enter the cooling or heating trial operation;
B. Remote control type: In OFF state, keep pressing ON/OFF button until 5 seconds later, the buzzer
sounds twice, then enter the cooling or heating trial operation;
14.2 Response in trial operation
A.
Cooling trial operation: indoor sends S-CODE=SD to outdoor, indoor: at high speed, set temp: 16
℃
;
B.
Heating trial operation: indoor sends S-CODE=SF to outdoor, indoor: at high speed, set temp: 30
℃
;
C. In this period, anti-freezed and overheat functions are invalid.
14.3 Quit condition
A.
Receiving the signal of cancelling trial operation from wired controller or remote controller;
B. After trial operation has run for 20 minutes, it will quit trial operation automatically and enter the
normal mode with the set temp.: 24
℃
.
15. Timer operation
15.1 Wired control type: wired controller will control the unit ON/OFF;
15.2 Remote control type: indoor unit will confirm the unit ON or OFF according to the current clock and
the timer clock set by remote controller. When setting timer function, the timer LED will be ON.
16. SLEEP function
16.1 Wired control type unit is without sleep function;
16.2 Remote control type unit consists of cooling sleep and heating sleep, after the sleep is set, the unit
±²³³´µ¶·¸¹ º·µ ±²»¼·½·²»´µ
will change mode; the sleep will begin to count.
A.
In cooling/dry mode, after running for 1 hour, the set temp. will increase 1
℃
, another 1 hour later, the
set temp. will increase 1
℃
again, then 6 hours (or set time-2) later , it will stop.
B. In heating mode, after running for 1 hour, the set temp. will reduce 2
℃
, another 1 hour later, the set
temp. will reduce 2
℃
again, then 3 hours later, the set temp. will increase 1
℃
, and another 3
hours(or set time-5), it will stop.
C. When setting sleep function, indoor motor is forced at low speed.
-92-