Presentation DUCTED BLOWER SPLIT MDB 75 600 ER

Presentation DUCTED BLOWER SPLIT MDB 75 -600 ER SERIES

Outlook MDB 75 ER – MDB 100 ER MDB 200/250/300 ER 2 MDB 300/350/450 ER 3 MDB 400/500/600 ER 4 MDB 125/150 ER MDB 150 ER 2

Exploded View Example, MDB 125 ER

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

Features Refrigerant Circuit Example:

Features • • Flexibility in air supply • Belt driven (Applicable for MDB 125 ER and above. • Wider applications Taper lock Pulley • Easy maintenance

Features • Air discharge orientation • MDB 75 -150 ER come with standard horizontal air discharge • MDB 200 -600 ER come with standard vertical air discharge, site convertible. Vertical Discharge Horizontal Discharge

Features • Scroll Compressor • Better energy efficiency • Quieter in operation

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

Features • Sequential Controller SQ 1. 0 • Package/ Components of Sequential Controller SQ 1. 0 • Mainboard Configuration • Display Panel Control Board (SQNDSP) • Display Panel (SQNDSP) • PAC LCD Wired Controller (SQNLCD) • Features

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

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

Display Panel Control Board (SQNDSP) • 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 (SQNDSP) • 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

SQ LCD Wired Controller (SQNLCD) Located in the office/ central control room • Can be installed at 1 km away from main SQ 1. 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 timer • Battery operated

Features of Sequential Controller SQ 1. 0 • Selection of Modes 1. Cooling(SQCn) 2. Auto H/pump+no heater(SQHn 0) 3. Auto H/pump+1 heater(SQHn 1) 4. Auto H/pump+2 heater(SQHn 2) DS 1 off on DS 2 off on on DS 5 off on on on

Features of Sequential Controller SQ 1. 0 • Sequential control & balance loading up to 4 compressors • Applicable for MDB 125 ER 2 to 600 ER 4 % Capacity Loading 2 stages 3 stages 4 stages 2 Compressors 3 Compressors 4 Compressors

Features of Sequential Controller SQ 1. 0 • 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 Heater 1 Heater 2

Features of Sequential Controller SQ 1. 0 • Selectable stage differential temperature Selection can be done by setting dip switch 3 & 4 1. Default 2. 0. 5 0 C 3. 1. 0 0 C 4. 1. 5 0 C SW 3(dip 3) off on SW 4(dip 4) off on on Where default differential temp. based on nos. of compressors Model Default diff. Temp. setting 1 compressor Not applicable 2 compressors 0. 5 0 C 3 compressors 1. 0 0 C 4 compressors 1. 5 0 C Note : 1. 5 0 C only valid for 2 and 3 compressors model. For 4 compressors, max 1. 0 0 C

Features of Sequential Controller SQ 1. 0 a) 0. 5°C differential temperature (Cooling cycle) Troom °C 4 comp on Ts+1. 5 Ts+0. 5 Ts 2 comp on 1 comp off 1 comp on 2 comp off Ts-0. 5 Ts-1. 0 0. 5°C 3 comp on Ts+1. 0 3 comp off All comp off

Features of Sequential Controller SQ 1. 0 b) 1. 0°C differential temperature (Cooling cycle) Troom °C 4 comp on Ts+3. 0 3 comp on Ts+2. 0 Ts-1. 0 1 comp off 2 comp on Ts+1. 0 Ts 1. 0°C 2 comp off 1 comp on 3 comp off All comp off

Features of Sequential Controller SQ 1. 0 c) 0. 5°C differential temperature (Heating cycle) Troom °C Ts+1. 5 Ts+1. 0 Ts+0. 5 Ts Ts-0. 5 Ts-1. 0 4 comp off 1 comp on 3 comp off 2 comp on 2 comp off 3 comp on 1 comp off 4 comp on 1. 0°C

Features of Sequential Controller SQ 1. 0 • 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 SQ 1. 0 • Compressor protection • Overload protection • High/ low pressure protection • Microprocessor control defrost cycle • Antifreeze protection • Error code indication • E 01 to E 35 error code

Features of Sequential Controller SQ 1. 0 Error Code Indication: Error Code E 01 E 02 E 03 E 04 E 05 E 06 E 07 E 08 E 09 E 10 E 11 E 12 E 13 E 14 E 15 E 16 E 17 E 18 Possible Fault Req. manual reset Comp. 1 h/temp. (O/L) Comp. 2 h/temp. (O/L) Comp. 3 h/temp. (O/L) Comp. 4 h/temp. (O/L) Comp. 1 h/pre trip Comp. 2 h/pre trip Comp. 3 h/pre trip Comp. 4 h/pre trip Comp. 1 L/pre trip Comp. 2 L/pre trip Comp. 3 L/pre trip Comp. 4 L/pre trip Room sensor short Room sensor open I/D coil sensor 1 short E 20 E 21 E 22 E 23 E 34 E 35 Error Possible Fault Code E 19 I/D coil sensor 4 short I/D coil sensor 1 open I/D coil sensor 2 open I/D coil sensor 3 open I/D coil sensor 4 open E 24 O/D coil sensor 1 short E 25 O/D coil sensor 2 short E 26 O/D coil sensor 3 short E 27 O/D coil sensor 4 short E 28 O/D coil sensor 1 open E 28 O/D coil sensor 2 open E 30 O/D coil sensor 3 open E 31 O/D coil sensor 4 open E 32 Comp. 1 de-ice E 33 Comp. 2 de-ice Comp. 3 de-ice Comp. 4 de-ice

Features of Sequential Controller SQ 1. 0 • NIM-Able • Able to connect to Network Interface Module (NIM) • Air conditioning systems can be controlled by single controller.