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D UCTED B LOWER S PLIT M DB 75-600 E R S ERIES Presentation.

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Presentation on theme: "D UCTED B LOWER S PLIT M DB 75-600 E R S ERIES Presentation."— Presentation transcript:

1 D UCTED B LOWER S PLIT M DB E R S ERIES Presentation

2 Outlook MDB75ER – MDB100ER MDB 125/150 ER MDB 150 ER2 MDB 200/250/300 ER2 MDB 300/350/450 ER3 MDB 400/500/600 ER4

3 Exploded View Example, MDB125ER

4 Thermal Expansion Valve (TXV) for both indoor & outdoor unit. 2 TXV in a operation system Improve Expansion Efficiency Features

5 Refrigerant Circuit Example: Features

6 Flexibility in air supply Belt driven (Applicable for MDB125ER and above. Wider applications Taper lock Pulley Easy maintenance Features

7 Air discharge orientation MDB ER come with standard horizontal air discharge MDB ER come with standard vertical air discharge, site convertible. Features Vertical Discharge Horizontal Discharge

8 Scroll Compressor Better energy efficiency Quieter in operation Features

9 Plant Room Control Room Indoor Outdoor Do you have this requirement? We provide the solution!

10 Sequential Controller SQ1.0 Features Package/ Components of Sequential Controller SQ1.0 Mainboard Configuration Display Panel Control Board (SQNDSP) Display Panel (SQNDSP) PAC LCD Wired Controller (SQNLCD) Features

11 Switch Board Main PCB - inside DB unit SQ LCD controller – Inside Control Room (Optional) Package/ Components of SQ Controller SQ1.0 Max distance = 1km

12 Room Sensor ( x 1) Indoor Coil Sensor ( x 4) 1 x Indoor Fan 4 x Comp Relay 2 x Heater4 x 4WV Outdoor Coil Sensor 4 x HP Switch To Display Panel PCB Mainboard Configuration

13 Located in the switch board / plant room Display Compressor Status & On/Off the system Consists of connectors for live wire signal for: - Compressor trip x 4 - Compressor run x 4 - CC heater x 4 Display Panel Control Board (SQNDSP)

14 Located On Switch Board 4 LED for compressor status Red - Trip Green - Run 4 LED for crankcase heater On/Off Button to turn unit On/Off Display Panel (SQNDSP)

15 Located in the office/ central control room Can be installed at 1 km away from main SQ1.0 Let user interface with the air conditioner Display compressors ON/OFF, defrost status Display error code to ease troubleshooting 7 days, 24 hours real time timer Battery operated SQ LCD Wired Controller (SQNLCD)

16 DS1DS2DS5 1.Cooling(SQCn)offoffoff 2.Auto H/pump+no heater(SQHn0)onoffon 3.Auto H/pump+1 heater(SQHn1)offonon 4.Auto H/pump+2 heater(SQHn2)ononon Features of Sequential Controller SQ1.0 Selection of Modes

17 Sequential control & balance loading up to 4 compressors Applicable for MDB125ER2 to 600ER4 % Capacity Loading 2 stages3 stages4 stages 2 Compressors3 Compressors4 Compressors Features of Sequential Controller SQ1.0

18 Heater 1 Heater 2 Standby auxiliary heaters Auto random restart Unit automatically restarts as last setting condition when power is resumed after a breakdown Option is provided to cancel this feature Features of Sequential Controller SQ1.0

19 Selection can be done by setting dip switch 3 & 4 SW3(dip3)SW4(dip4) 1. Defaultoffoff Conoff Coffon Conon Where default differential temp. based on nos. of compressors ModelDefault diff. Temp. setting 1 compressorNot applicable 2 compressors0.5 0 C 3 compressors1.0 0 C 4 compressors1.5 0 C Selectable stage differential temperature Note : 1.5 0C only valid for 2 and 3 compressors model. For 4 compressors, max 1.0 0C Features of Sequential Controller SQ1.0

20 T room °C T s +1.5 T s +1.0 T s +0.5 TsTs T s -0.5 T s comp on 2 comp on 3 comp on 4 comp on All comp off 3 comp off2 comp off 1 comp off 0.5°C a) 0.5°C differential temperature (Cooling cycle) Features of Sequential Controller SQ1.0

21 T room °C T s +3.0 T s +2.0 T s +1.0 TsTs T s comp on 2 comp on 3 comp on 4 comp on All comp off 3 comp off2 comp off 1 comp off 1.0°C b) 1.0°C differential temperature (Cooling cycle) Features of Sequential Controller SQ1.0

22 T s +1.5 T s +1.0 T s +0.5 TsTs T s -0.5 T s comp on 2 comp on 3 comp on 4 comp on 4 comp off 3 comp off2 comp off 1 comp off 1.0°C T room °C c) 0.5°C differential temperature (Heating cycle) Features of Sequential Controller SQ1.0

23 COOL/ HEAT/ AUTO/ FAN system control Cold blast, spurt heat, hot start & hot keep Single fan Speed (High Speed) Set temperature in C or F Energy Saving Function Key lock function Test run function Unit will operate for 2 hours and stop if the Test button is pressed Features of Sequential Controller SQ1.0

24 Compressor protection Overload protection High/ low pressure protection Microprocessor control defrost cycle Antifreeze protection Error code indication E01 to E35 error code Features of Sequential Controller SQ1.0

25 ErrorPossible FaultErrorPossible FaultCode E01Req. manual resetE19I/D coil sensor 4 short E02Comp. 1 h/temp.(O/L)E20I/D coil sensor 1 open E03Comp. 2 h/temp.(O/L)E21I/D coil sensor 2 open E04Comp. 3 h/temp.(O/L)E22I/D coil sensor 3 open E05Comp. 4 h/temp.(O/L)E23I/D coil sensor 4 open E06Comp. 1 h/pre tripE24O/D coil sensor 1 short E07Comp. 2 h/pre tripE25O/D coil sensor 2 short E08Comp. 3 h/pre tripE26O/D coil sensor 3 short E09Comp. 4 h/pre tripE27O/D coil sensor 4 short E10Comp. 1 L/pre tripE28O/D coil sensor 1 open E11Comp. 2 L/pre tripE28O/D coil sensor 2 open E12Comp. 3 L/pre tripE30O/D coil sensor 3 open E13Comp. 4 L/pre tripE31O/D coil sensor 4 open E14Room sensor shortE32Comp. 1 de-ice E15Room sensor openE33Comp. 2 de-ice E16I/D coil sensor 1 shortE34Comp. 3 de-ice E17 I/D coil sensor 1 short E35Comp. 4 de-ice E18I/D coil sensor 1 short Error Code Indication: Features of Sequential Controller SQ1.0

26 NIM-Able Able to connect to Network Interface Module (NIM) Air conditioning systems can be controlled by single controller. Features of Sequential Controller SQ1.0


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