Presentation is loading. Please wait.

Presentation is loading. Please wait.

Operating Functions. Room set temperature (T set) Room ambient temperature (T amb) Temperature Parameters.

Similar presentations


Presentation on theme: "Operating Functions. Room set temperature (T set) Room ambient temperature (T amb) Temperature Parameters."— Presentation transcript:

1 Operating Functions

2 Room set temperature (T set) Room ambient temperature (T amb) Temperature Parameters

3 Operating Functions After powered on, no matter when the compressor is started, the time interval between two startups cannot be less than 3 minutes. Fundamental Functions

4 Operating Functions The condition and process of cooling If the indoor ambient temperature is equal to or greater than the room set temperature, COOL mode will act, the compressor and outdoor fan will run, and the indoor fan will run at the set speed. If the indoor ambient temperature is equal to or lower than 2°F below the room set temperature, the compressor will stop, the outdoor fan will delay 30 seconds to stop, and the indoor fan will run at the set speed. If the indoor ambient temperature is lower than the room set temperature, yet higher than 2°F below the room set temperature, the unit will keep running in the previous mode. In this mode, the reversal valve will not be powered on and the temperature setting range is 61°F ~ 86°F. The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature. COOL Mode Fundamental Functions

5 Operating Functions Anti-freezing protection 1) Under cooling or dehumidify mode, if T indoor tube senor has detect a temperature that is below 32 °F continuously for 3 minutes, the unit will go into freeze protection mode and shut down. Once the unit shut down because of freeze protection, the unit will not restart until T indoor tube sensor is above 42.8 °F. The compressor has to wait at least 3 minutes to restart after shutting down due to freeze protection. 2) Under cooling or dehumidify mode, if T indoor tube senor has detected a temperature that is below 42.8 °F but higher than 32 °F, the compressor may decrease its speed to prevent the temperature to go below 32 °F. 3) If the unit has been shut down six times because of the freeze protection, it will not restart again automatically. Instead, user or service technician needs to completely power off the unit before he/she can try to restart the unit manually. But, once the compressor runs continuously for more than 10 minutes normally (no freeze protection detected), the number of freeze protections will be cleared to zero. Fundamental Functions COOL Mode

6 Operating Functions Overcurrent protection If total current is high, the compressor will run in limited or dropped frequency. When total current goes on rising over the stated value, the compressor will stop, the outdoor fan will delay 30 seconds, then stop. Fundamental Functions COOL Mode

7 Operating Functions The condition and process of drying If the indoor ambient temperature is greater than the room set temperature, DRY mode will act, the indoor fan, outdoor fan and compressor will run, and indoor fan will run at low speed. If the indoor ambient temperature is lower than the room set temperature, yet higher than 2°F below the room set temperature, the unit will keep running in the original mode. If the room ambient temperature is lower than 2°F below the room set temperature, the compressor will stop running, the outdoor fan will delay 30 seconds to stop and the indoor fan will run at low speed. In this mode, the reversal valve will not be powered on and the temperature setting range is 61°F ~ 86°F. The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature. Fundamental Functions DRY Mode

8 Operating Functions Protection Protection is the same with that in COOL mode. Fundamental Functions DRY Mode

9 Operating Functions The condition and process of heating If the indoor ambient temperature is equal to or less than 2°F above room set temperature, HEAT mode will act, the compressor, outdoor fan and 4-way valve will run simultaneously, and the indoor fan will delay up to 2 minutes before running. If the indoor ambient temperature is lower than 9°F above room set temperature, yet higher than 2°F above room set temperature, the unit will keep running in the original mode. If the indoor ambient temperature is greater than 9°F above room set temperature, the compressor will stop, the outdoor fan will delay 30 seconds then stop, and the indoor fan will blow for 60 seconds at the original speed and then stop. In this mode, the temperature setting range is 61°F ~ 86°F. The air conditioner will adjust the running frequency of the compressor automatically according to the change of ambient temperature. When the unit is turned off in HEAT mode, or switched to another mode, the 4-way valve will be powered off 2 minutes after the compressor stops. Fundamental Functions HEAT Mode

10 Operating Functions The condition and process of defrosting What parameters have been used in the defrost algorithm? There are two temperatures that basically determine if the system goes into defrost mode or not, and they are T outdoor ambient and T outdoor tube. One intermediate parameter, T compensation, has also been created and involved in the calculation. T compensation can be determined by T outdoor tube, 1)If T outdoor tube > 35.6 °F, T compensation = 0°F 2) If T outdoor tube ≤ 35.6 °F, T compensation = 5.4°F Fundamental Functions HEAT Mode

11 Operating Functions When will the system go into defrost mode? When the system continuously runs in heating mode for more than 45 minutes or the compressor accumulated run time is more than 90 minutes, the unit will switch to defrost mode under any of the following conditions, 1) T outdoor ambient ≥ 41 °F, T outdoor tube ≤ 28.4 °F 2) 28.4 °F > T outdoor ambient < 41 °F, T outdoor tube ≤ 21.2 °F 3) 23 °F ≤ T outdoor ambient < 28.4 °F, T outdoor tube ≤ 17.6 °F 4) 14 °F ≤ T outdoor ambient < 23 °F, T outdoor tube ≤ T outdoor ambient T compensation 5) T outdoor ambient < 14 °F, T outdoor tube ≤ T outdoor ambient T compensation Other than these 5 conditions, the system could also switch to defrost mode under the following condition, 6) T outdoor ambient ≥ 41 °F, compressor has more than 180 minutes accumulated run time, and T outdoor tube sensor continuously report the temperature is < 32°F for more than 1 minute. Note: Compressor accumulated run time can be cleared to 0 only under the following conditions. System finished a defrost cycle. System switched to cooling mode Compressor accumulated run time will NOT be cleared for any other conditions including System stops running when reaching the set indoor temperature System stops running for any protection System switches to fan mode Fundamental Functions HEAT Mode

12 Operating Functions When will the system stop defrost mode? The system will stop defrost cycle if ANY of the following conditions are satisfied 1) T outdoor tube ≥ 50 °F 2) Defrost cycle reaches maximum defrost set time, typically this value is around minutes and it varies model by model Fundamental Functions HEAT Mode

13 Operating Functions How does each component respond in sequence during a defrost cycle? Once the system determines to run a defrost cycle, first the indoor fan stop running and subsequently the compressor reduces the speed and stops within a minute. The outdoor fan will continue to run for another minute, and then stop. Fifteen seconds later, the switch over valve will switch the position from heating to defrost (or cooling). The compressor starts up again and increases into a relatively high speed to defrost. Once the system determine to exit a defrost cycle, the compressor decreases the speed and stops within a minute. A few seconds later, the switch over valve will switch the position from defrost (or cooling) to heating. After one minute, the compressor will operate again, and subsequently the outdoor fan and indoor fan will return to normal and run in heating mode. Fundamental Functions HEAT Mode

14 Operating Functions Protection Overcurrent protection If the total current is high, the compressor will run in limited or dropped frequency. When total current continues rising over the stated value, the compressor will stop, the outdoor fan will delay 30 seconds, then stop. Fundamental Functions HEAT Mode

15 Operating Functions In this mode, the indoor fan will run the fan in High, Med, Low and Auto mode. The compressor, outdoor fan and four-way valve will stop. Fundamental Functions FAN Mode

16 Operating Functions In this mode, the system selects COOL, HEAT and FAN mode automatically according to the change of ambient temperature. The protection function is the same with that of COOL/HEAT mode. The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature. Fundamental Functions AUTO Mode

17 Operating Functions Each time the On/Off button of the remote controller is pressed, the On/Off state will switch once. Other Control ON/OFF

18 Operating Functions Press the MODE button on the remote controller to select and display the following modes: AUTO, COOL, DRY, FAN, and HEAT. Other Control MODE SELECTION

19 Operating Functions Each time TEMP+ or TEMP- button is pressed, the set temperature will be increased or decreased by 2°F. Adjusting range is 61°F ~ 86°F. In AUTO mode, this button does not function. Other Control TEMP. Setting Button

20 Operating Functions Press the AUTO key to start the unit. The unit will run in AUTO mode. When the unit is running, press the AUTO key to stop the unit. Other Control AUTO Key

21 Operating Functions The unit is turned on or off according to the timer set by the remote controller. Other Control Timer Control

22 Operating Functions When the air conditioner is in COOL or DRY mode, after Sleep mode has been set properly, the preset room set temperature will be increased by 2°F after the sleep program has run for 1 hour. The room set temperature will be increased by another 2°F after 2 hours. The room set temperature has been increased by 4°F total in two hours. The unit will continue to run at this set temperature and at the set speed. Other Control Sleep Control When the air conditioner is in HEAT mode, after Sleep mode has been set properly, the preset room set temperature will be decreased by 2°F after the sleep program has run for 1 hour. The room set temperature will be decreased by another 2°F after 2 hours. The room set temperature has now been decreased by 4°F total in two hours. The unit will continue to run at this set temperature and at the set speed. In AUTO or FAN mode, the setting temperature will not change.

23 Operating Functions Use the remote control to set the indoor fan to run at HIGH, MED, or LOW speed. It can also be set to AUTO. The indoor unit will select the fan speed (HIGH, MED, or LOW) automatically according to ambient temperature. There are at least 3 minutes and 30 seconds delay for fan speed shift. Other Control Indoor Fan Control

24 Operating Functions The power supply for the outdoor unit is turned on in AUTO, COOL, HEAT, and DRY mode under the turn-on state. The power supply for the outdoor unit will delay 3 minutes to turn off under the turn-off state or in the FAN mode under the turn-on state. Other Control Power Supply for Outdoor Unit

25 Operating Functions Use the SWING button of the wireless remote control to control SWING On and Off. Swing will only act when the indoor fan is running. After power off, the swing motor turns back to 0 position and closes the air outlet vent. If it does not enter a preset swing mode, after the unit is turned on, it will turn to the maximum air outlet D1 position, then turn back to L position under COOL mode. Under HEAT mode, the guide louver stays at D1. When in a swing mode, it will swing between L1 and D1 position. When the unit is turned off, it will turn back to the 0 position. Other Control Swing Control

26 Operating Functions When the unit is powered on or receives a remote control signal, or the auto key be pressed, the buzzer will give out a beep. Other Control Buzzer Control

27 Operating Functions Contents of memory: Mode; Swing; Set fan speed, Set temperature, Timing etc. Under turn-on state, when powered on, the power supply for the outdoor unit will be turned on after 3 minutes. Under turn-off state, when powered off, the power supply for the outdoor unit will be turned off immediately. Other Control Power-off Memory Function

28 Operating Functions Under COOL, DRY, and HEAT modes, there will be a 3 minute time delay before the compressor starts. Other Control Delay Protection of Compressor

29 Operating Functions T tube: In cooling mode, it detects the temperature of the outdoor heat exchanger, in heating mode, it detects the temperature of the indoor heat exchanger. When T tube detects high temperature, the compressor will run in limited frequency. When T tube temperature continues rising over the stated value, the compressor will stop. Under AUTO HEAT or HEAT mode, the indoor fan will blow 60 seconds at low fan speed and then stop. Under other modes, the indoor fan will run at set speed. Common Protection Function in Each Mode Overload Protection

30 Operating Functions When the discharge temperature is too high over the stated value, the compressor will stop. When the discharge temperature drops to normal and the compressor has stopped for 3 minutes, the unit will resume its original operating status. Common Protection Function in Each Mode Compressor Discharge Temperature Protection

31 Operating Functions When not receiving a correct signal for 3 minutes, the unit has a communication malfunction and the outdoor unit stops. It is the same as a normal stop when meeting the set temperature. Common Protection Function in Each Mode Communication Malfunction

32 Operating Functions When the module is in protection, the compressor will stop. After the compressor has stopped for 3 minutes, it will resume operation. During the module protection period, the indoor unit displays error code H5 and the entire system stops. Common Protection Function in Each Mode Module Protection


Download ppt "Operating Functions. Room set temperature (T set) Room ambient temperature (T amb) Temperature Parameters."

Similar presentations


Ads by Google