High static Pressure Duct Type Air-conditioner

High static Pressure Duct Type Air-conditioner Part 1. Product Features In case the ceiling is super-high. Blowing pressure of Indoor Unit can reach 196Pa. The air conditioner delivers cold wind to every indoor corner even the ceiling is super-high. Multi-blowing outlets To satisfy your fitment s needs. Indoor Unit can be installed in various ways to give you a creative space. Fresh air drawn in Fresh air can be drawn in by the Indoor Unit, which improves the Indoor Air Quality greatly. Low noise operation The noise is remarkably low, even lower than Traditional Central Air Conditioner. 88

Part 2. Specification Model MHA-26CR MHA-26HR MHA-26CR MHA-26HR Factory Model CE-KF75T1W/Y CE-KFR75T1W/Y CE-KF75T1W/SY CE-KFR75T1W/SY Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Capacity Btu/h 26000 26000 26000 26000 Input W 3150 3250 3390 3170 Cooling Rated current A 14.8 15.2 5.7 5.3 EER Btu/w.h 8.3 8.0 7.7 8.2 Capacity Btu/h - 27800-27800 Input W - 2860-2950 Heating Rated current A - 13.8-5.2 COP W/W - 2.8-2.8 Moisture Removal L/h 2.5 2.5 2.5 2.5 Max. input consumption W 4700 4650 4300 4500 Max. input current A 26.2 24.1 8.7 7.4 Starting current A 55 54.8 46.2 46.2 Model ZR34KH-PFJ-522 ZR36K3-PFJ-522 JT90BCBY1L JT90BCBY1L Type SCROLL SCROLL SCROLL SCROLL Brand COPELAND COPELAND DAKIN DAKIN Supplier COPELAND(SU ZHOU) COPELAND(SU ZHOU) DAKIN(XI AN) DAKIN(XI AN) Capacity Btu/h 27980 30300 29170 29170 Compressor Input W 2520 2730 2890 2890 Rated current(rla) A 13.6 13.6 14.4 14.4 Locked rotor Amp(LRA) A 76 100 69 69 Thermal protector Internal Internal Internal Internal Capacitor uf 50 50 / / Refrigerant oil ml 1242 1242 1200 1200 Model YLK160-4 YLK160-4 YLK160-4 YLK160-4 Brand WELLING WELLING WELLING WELLING Indoor fan motor Input W 360 360 360 360 Capacitor uf 10 10 10 10 Speed(hi/mi/lo) r/min 1210/1150/1010 1210/1150/1010 1210/1150/1010 1210/1150/1010 a.number of rows 4 4 4 4 Indoor coil b.tube pitch(a)x row pitch(b) mm 25X14.44 25X14.44 25X14.44 25.4X14.44 c.fin spacing mm 1.6 1.6 1.6 1.6 d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 700X300X60 700X300X60 700X300X60 700X300X60 g.number of circuits 2 2 2 2 Indoor air flow (Hi/Mi/Lo) m 3 /h 1320/1120 1320/1120 1320/1120 1320/1120 Indoor noise level (Hi/Mi/Lo) db(a) 47/44 47/44 47/44 47/44 Dimension (W*H*D) mm 850X380X660 850X380X660 850X380X660 850X380X660 Indoor unit Packing (W*H*D) mm 1075X495X775 1075X495X775 1075X495X775 1074X495X775 Net/Gross weight kg 52/57 52/57 52/57 52/57 Outdoor fan motor Model YDK65-6C1 YDK65-6C1 YDK65-6C1 YDK65-6C1 Brand Xijiao Xijiao Xijiao Xijiao Input W 138 138 138 138 Capacitor uf 3.5 3.5 3.5 3.5 89

Speed r/min 800 800 800 800 Outdoor coil a.number of rows b.tube pitch(a)x row pitch(b) c.fin spacing d.fin type (code) 1 2 1 2 mm 25.4 X22 25.4X22 25.4 X22 25.4X22 mm 1.5 1.8 1.4 1.8 Unhydrophilic aluminium Hydrophilic aluminium Unhydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф9.53, bare tube Ф9.53, innergroove tube Ф9.53, bare tube Ф9.53, innergroove tube f.coil length x height x width mm 850X813X22 850X813X44 850X813X22 850X813X44 g.number of circuits 1 2 1 2 Outdoor air flow m 3 /h 3000 3000 3000 3000 Outdoor noise level db(a) 52 52 52 52 Dimension(W*H*D) mm 895x860x330 895x860x330 895x860x330 895x860x330 Outdoor unit Packing (W*H*D) mm 972X987X406 972X987X406 972X987X406 972X987X406 Net/Gross weight kg 73/84 79/90 73/84 79/90 Refrigerant type R22 g 1500 2950 1450 2800 Design pressure MPa 1.2/2.6 1.2/2.6 1.2/2.6 1.2/2.6 Liquid side mm(inch) Φ9.53(3/8") Φ9.53(3/8") Φ9.53(3/8") Φ9.53(3/8") Refrigerant piping Gas side mm(inch) Φ16 (5/8") Φ16 (5/8") Φ16 (5/8") Φ16 (5/8") Max. refrigerant pipe length m 15 15 15 15 Max. difference in level m 5 5 5 5 Connection wiring No No No No Plug type No No No No Thermostat type Electronic Control Electronic Control Electronic Control Electronic Control Operation temp 17~30 17-30 17~30 17-30 Ambient temp 18~45 7-45 18~45 7-45 Application area m 2 40-56 40-56 40-56 40-56 Qty per 20 /40 /40'HQ set 28/65/74 28/65/74 28/65/74 28/65/74 Model MHA-36CR MHA-36HR MHA-48CR MHA-48HR Factory Model CE-KF105T1W/SY CE-KFR105T1W/SY CE-KF140T1W/SY CE-KFR140T1W/SY Power supply Ph-V-Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Capacity Btu/h 36000 36000 48000 48000 Cooling Heating Input W 4500 4500 5500 5630 Rated current A 7.7 7.7 9.5 9.8 EER Btu/w.h 8.0 8.0 8.7 8.5 Capacity Btu/h - 41000-55000 Input W - 4550-5550 Rated current A - 7.8-9.5 COP Btu/w.h - 2.6-2.9 90

Moisture Removal L/h 3.8 3.8 4.4 4.4 Max. input consumption W 6320 6320 6900 6900 Max. input current A 11.5 11.5 12.6 12.6 Starting current A 58 58 58 58 Model JT160BCBY1L JT160BCBY1L JT160BCBY1L JT160BCBY1L Type SCROLL SCROLL SCROLL SCROLL Brand DAKIN DAKIN DAKIN DAKIN Supplier DAKIN(XI AN) DAKIN(XI AN) DAKIN(XI AN) DAKIN(XI AN) Capacity Btu/h 51180 51180 51180 51180 Compressor Indoor fan motor Indoor coil Input W 4660 4660 4660 4660 Rated current(rla) A 8.6 8.6 8.6 8.6 Locked rotor Amp(LRA) A 65.8 65.8 65.8 65.8 Thermal protector Internal Internal Internal Internal Capacitor uf / / / / Refrigerant oil ml 1750 1750 1750 1750 Model YLK400-4 YLK400-4 YLK400-4 YLK400-4 Brand WELLING WELLING WELLING WELLING Input W 600 600 600 600 Capacitor uf 12 12 12 12 Speed(hi/mi/lo) r/min 1250/1110/1010 1250/1110/1010 1250/1110/1010 1250/1110/1010 a.number of rows 4 4 4 4 b.tube pitch(a)x row pitch(b) mm 25X14.44 25.4X14.44 25X14.44 25.4X14.44 c.fin spacing mm 1.6 1.6 1.6 1.6 d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 900X300X60 900X300X60 900X300X60 900X300X60 g.number of circuits 6 6 6 6 Indoor air flow (Hi/Lo) m 3 /h 2000/1600 2000/1600 2400/1600 2400/1600 Indoor noise level (Hi/Lo) db(a) 50/47 50/47 50/47 50/47 Dimension (W*H*D) mm 1200X380X660 1200X380X660 1200X380X660 1200X380X660 Indoor unit Packing (W*H*D) mm 1425X495X775 1425X495X775 1425X495X775 1425X495X775 Net/Gross weight kg 65/72 65/72 65/72 65/72 Model YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC Brand Welling Welling Welling Welling Outdoor fan motor Input W 138+156 138+156 138+156 138+156 Capacitor uf 3.5x2 3.5x2 3.5x2 3.5x2 Speed r/min 800 800 800 800 Outdoor coil a.number of rows 1 2 1 2 b.tube pitch(a)x row pitch(b) mm 25.4 X22 25.4X22 25.4 X22 25.4X22 c.fin spacing mm 1.4 1.8 1.4 1.8 d.fin type (code) Unhydrophilic aluminium Unhydrophilic aluminium Unhydrophilic aluminium Unhydrophilic aluminium e.tube outside dia.and type mm φ9.53,innergroove tube Ф9.53, bare tube φ9.53,innergroove tube Ф9.53, bare tube f.coil length x height x width mm 715X1220X22 715X1220X44 715X1220X22 715X1220X44 g.number of circuits 1 4 1 4 Outdoor air flow m 3 /h 6000 6000 6000 6000 Outdoor noise level db(a) 57 57 57 57 91

Dimension(W*H*D) mm 940x1245x360 940x1245x360 940x1245x360 940x1245x360 Outdoor unit Packing (W*H*D) mm 1018X1377X434 1018X1377X434 1018X1377X434 1018X1377X434 Net/Gross weight Kg 110/125 112/127 110/125 112/127 Refrigerant type g 2150 4050 2150 4050 Design pressure MPa 2.6/1.2 2.6/1.2 2.6/1.2 2.6/1.2 Liquid side mm(inch) Φ12.7(1/2") Φ12.7(1/2") Φ12.7(1/2") Φ12.7(1/2") Gas side Refrigerant piping mm(inch) Φ19.0(3/4") Φ19.0(3/4") Φ19.0(3/4") Φ19.0(3/4") Max. refrigerant pipe length m 15 15 15 15 Max. difference in level m 5 5 5 5 Connection wiring No No No No Plug type No No No No Thermostat type Electronic Control Electronic Control Electronic Control Electronic Control Operation temp 17-30 17-30 17-30 17-30 Ambient temp 18~45 7-45 18~45 7-45 Application area m 2 60-85 60-85 80-105 80-105 Qty per 20 /40 /40'HQ set 22/46/46 22/46/46 22/46/46 22/46/46 Model MHA-24HRN2 MHA-24HRN2 MHA-30HRN2 Factory Model CE-KFR71T1W/N2Y CE-KFR71T1W/N2SY CE-KFR90T1W/N2SY Power supply Ph-V-Hz 1, 220-240V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Cooling Heating Capacity Btu/h 24000 24000 30000 Input W 3350 3200 3500 Rated current A 14.9 5.5 6.0 EER Btu/w.h 7.2 7.5 8.6 Capacity Btu/h 27600 30000 32000 Input W 2900 3000 3200 Rated current A 12.7 5.3 5.5 COP Btu/w.h 9.5 10 10 Moisture Removal L/h 2.4 2.4 3.0 Max. input consumption W 4400 4000 4200 Max. input current A 23 7.35 7.5 Starting current A 44 25 25 Compresso r Model HQ034PAA C-SBN263H8A C-SBN263H8A Type SCROLL Scroll Scroll Brand LG SANYO SANYO Supplier LG(KOREA) SANYO SANYO Capacity Btu/h 29000 33788 33788 Input W 2760 3500 3500 92

Indoor fan motor Rated current(rla) A 12.4 6.33 6.33 Locked rotor Amp(LRA) A 61 Thermal protector INTERNAL TYPE INTERNAL TYPE INTERNAL TYPE Capacitor uf 60 / / Refrigerant oil ml 750 DAPHN-E FV68S 1700 DAPHN-E FV68S 1700 Model YLK160-4 YLK160-4 YLK160-4 Brand WELLING WELLING WELLING Input W 360 360 360 Capacitor uf 10 10 10 Speed(hi/mi/lo) r/min 1210/1150/1010 1210/1150/1010 1210/1150/1010 a.number of rows 4 4 4 b.tube pitch(a)x row pitch(b) mm 25X14.44 25X14.44 25X14.44 c.fin spacing mm 1.6 1.6 1.6 Indoor coil d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 700X300X60 700X300X60 700X300X60 g.number of circuits 2 2 2 Indoor air flow (Hi/Lo) m 3 /h 1320/1150 1320/1150 1320/1150 Indoor noise level (Hi/Lo) db(a) 47/44 47/44 47/44 Dimension (W*H*D) mm 850X380X660 850X380X660 850X380X660 Indoor unit Packing (W*H*D) mm 1075X495X775 1075X495X775 1075X495X775 Outdoor fan motor Outdoor coil Net/Gross weight Kg 52/57 52/57 52/57 Model YDK53-6H YDK53-6H YDK53-6H Brand WELLING WELLING WELLING Input W 140 130 130 Capacitor uf 3 3 3 Speed r/min 800 800 800 a.number of rows 2 2 2 b.tube pitch(a)x row pitch(b) mm 25.4x22 25.4x22 25.4x22 c.fin spacing mm 1.5 1.5 1.5 d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф9.53, innergroove tube Ф9.53,innergroove tube Ф9.53, innergroove tube f.coil length x height x width mm 850X813X44 850*813*44 850X813X44 g.number of circuits 2 4 4 Outdoor air flow m 3 /h 3000 3000 3000 Outdoor noise level db(a) 52 52 55 Dimension(W*H*D) mm 895X860X330 895X860X330 895X860X330 Outdoor unit Packing (W*H*D) mm 972X987X406 972X987X406 972X987X406 Net/Gross weight Kg 79/90 79/90 79/90 Refrigerant type g R407C/2500 R407C/2350 R407C/2350 Design pressure MPa 1.2/2.8 1.2/3.5 1.2/3.5 Liquid side/ Gas side mm(inch) Ф9.53(3/8")/Ф16(5/8") Ф9.53(3/8")/Ф16(5/8") Ф9.53(3/8")/Ф16(5/8") Refrigerant Max. refrigerant pipe length piping m 15 15 15 Max. difference in level m 5 5 5 Connection wiring No No No Plug type No No No Thermostat type Electronic Control Electronic Control Electronic Control 93

Operation temp 17-30 17-30 17-30 Ambient temp 7-45 10-43 10-43 Application area m 2 40-56 40-56 40-56 Qty per 20 /40 /40'HQ set 28/65/74 28/65/74 28/65/74 Model MHA-36HRN2 MHA-48HRN2 MHA-60HRN2 Factory Model CE-KFR105T1W/N2SY CE-KFR140T1W/N2SY CE-KFR160T1W/N2SY Power supply Ph-V-Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Cooling Heating Capacity Btu/h 36000 48000 60000 Input W 4900 5800 6200 Rated current A 8.2 9.7 10.5 EER Btu/w.h 7.3 8.2 9.7 Capacity Btu/h 40000 53000 65000 Input W 5400 6450 6550 Rated current A 9.1 10.4 12.0 COP Btu/w.h 7.4 8.2 9.9 Moisture Removal L/h 3.6 4.8 6.0 Max. input consumption W 6200 7400 7600 Max. input current A 11.6 12.2 14.0 Starting current A 50 50 50 Model C-SBN303H8A C-SBN373H8A C-SBN453H8A Type Scroll SCROLL Scroll Brand SANYO SANYO SANYO Supplier SANYO(DA LIAN) SANYO(DA LIAN) SANYO(DA LIAN) Capacity Btu/h 39067 49474 60100 Compressor Input W 4000 4950 5800 Rated current(rla) A 7 8.5 9.93 Locked rotor Amp(LRA) A 65.8 50 66 Thermal protector INTERNAL TYPE INTERNAL TYPE INTERNAL TYPE Capacitor uf / / / Refrigerant oil ml DAPHN-E FV68S 1700 1700 DAPHN-E FV68S 1700 Indoor fanmodel YLK400-4 YLK400-4 YLK400-4 motor Brand WELLING WELLING WELLING 94

Indoor coil Input W 600 600 600 Capacitor uf 12 12 12 Speed(hi/mi/lo) r/min 1250/1110/1010 1250/1110/1010 1250/1110/1010 a.number of rows 4 4 4 b.tube pitch(a)x row pitch(b) mm 25X14.44 25X14.44 25X14.44 c.fin spacing mm 1.6 1.6 1.6 d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 900X300X60 900X300X60 900X300X60 g.number of circuits 6 6 6 Indoor air flow (Hi/Lo) m 3 /h 2000/1820 2400/2200 2400/2200 Indoor noise level (Hi/Lo) db(a) 50/47 50/47 50/47 Indoor unit Outdoor fan motor Dimension (W*H*D) mm 1200X380X660 1200X380X660 1200X380X660 Packing (W*H*D) mm 1425X495X775 1425X495X775 1425X495X775 Net/Gross weight kg 65/72 65/72 65/72 Model YDK250-6D-WL YDK65-6-WL;YDK65-6F YDK65-6-WL;YDK65-6F Brand WELLING WELLING WELLING Input W 307 138+156 138+156 Capacitor uf 10 3.5x2 3.5x2 Speed r/min 740 800 800 a.number of rows 2 2 2 b.tube pitch(a)x row pitch(b) mm 25.4x22 25.4X22 25.4x22 c.fin spacing mm 1.7 1.8 1.8 Outdoor coil d.fin type (code) Unhydrophilic aluminium Unhydrophilic aluminium hydrophilic aluminium e.tube outside dia.and type mm Ф9.53,innergroove tube Ф9.53, bare tube Ф9.53, innergroove tube f.coil length x height x width mm 955*915*44 715X1220X44 715*1220*44 g.number of circuits 8 4 4 Outdoor air flow m 3 /h 5000 5000 5000 Outdoor noise level db(a) 57 57 58 Dimension(W*H*D) mm 990*960*360 940X1245X360 940*1245*400 Outdoor unit Packing (W*H*D) mm 1120*1090*435 1018X1377X434 1018*1377*434 Net/Gross weight kg 101/106 110/125 110/125 Refrigerant type g R407C/2700 R407C/4050 R407C/4300 Design pressure MPa 1.2/3.5 1.2/3.5 1.2/3.5 Refrigerant piping Liquid side/ Gas side mm(inch) Ф12.7/Ф19.0 Ф12.7/Ф19 Ф12.7/Ф19 Max. refrigerant pipe length m 15 15 15 Max. difference in level m 5 5 5 Connection wiring NO No No Plug type NO No No Thermostat type Electrolic control Electronic Control Electronic Control Operation temp 17-30 17-30 17-30 Ambient temp -10 ~ 43 7-45 7-45 Application area m 2 60-85 80-105 80-105 Qty per 20 /40 /40'HQ set 24/54/62 22/46/46 22/46/46 95

Part 3. Electric Control Functions 1. Performance Index No. Item Index 1 Applicable Voltage Range 198-242V~ (SINGLE PHASE) 343-418V~ (3- PHASE) 2 A/C Frequency 50Hz 3 Working environment temperature -7 C- +45 C 2. Main Parts Introduction 2.1 Operation Mode Operation mode can be set into auto, cooling, heating, dehumidifying and fan mode. 2.2 Temperature range can be set between: 17 C -30 C 2.3 Compressor Auxiliary start-up function: when the compressor starts up with single phrase, the main chip output will be in high level. 4 seconds after start-up circuit is engaged, the main chip output will be in low level and the start-up circuit shut down. 2.4 Indoor Fan The motor is a tapping motor with iron-made outer cover and high, low and fine tuning speed selections driven by three relays separately. The main chip will act when its output is high level. Under any circumstances, only one fan speed is allowed. 2.5 Outdoor Fan The motor is a tapping motor with iron-made outer cover and high, low speed options controlled by relays separately. The main chip acts when its output is high level. 2.6 Buzzer 2.6.1 It will buzz when its driving port in the main chip outputs high level. 2.6.2 It will buzz twice with each lasting 0.5 second at 0.5 intervals when the main frame receives remote start-up signal. 2.6.3 It will buzz once for 1 second when receiving turn-off signal. 2.6.4 It will buzz for 0.5 second once receiving other signal. 2.6.5 It will not buzz when receiving abnormal signal. 2.7 Indicator 2.7.1 There are 4 indicators: operating indicator, timer indicator, water level warning indicator, defrosting indicator 96

and pre-heating indicator (wind-delivery indicator for cooling-only A/C). 2.7.2 The light-emitting diode driven by the main chip will light when the level is low. 2.7.3 LED indicates errors when protection is in effective. 2.8 Four-way Valve It is controlled by relays. The main chip acts when output is high level. 2.9 Heating Condition for Crankcase 2.9.1 The crankcase will be heated when the temperature of the outer pipe is below 7 C and the compressor is off. 2.9.2 The crankcase will no longer be heated when the temperature of the outer pipe is over 15 C. 2.9.3 The crankcase will no longer be heated when the compressor is on. 2.10 Selection Channel for Quick Check The main frame will enter the quick check status if the channel is in low position when energizing. 1 minute will be shortened to 1 second during this period, however, other status will remain unchanged. 3. Operation Modes and Functions 3.1 Manual Operation 3.1.1 The manual operation mode is controlled through manual pad in the wind in-take grid, including such two modes as manual action and manual cooling. Push the manual pad for each switchover, the order for which is shown below: REMOTE CONTROL MANUAL ACTION MANUAL COOLING 3.1.2 Manual Cooling 3.1.2.1 Under this mode, no remote control signal will be received. 3.1.2.2 The compressor is started up unconditionally and the rotating speed of indoor and outdoor fans is set to be in high and forced cooling operation. At the same time, the wind grille is forced to swing (irrelevant to temperature setting and environment temperature) and will be automatically switched over to manual mode 30 minutes later, under which manual mode will be in effective. 3.1.2.3 Under this mode, the buzzer will buzz twice with each lasting 0.5 second at 0.5 interval. During the first 30 minutes of unconditional forced cooling operation, the operation indicator will blink at 0.5Hz. In the process of switchover to manual action mode, the buzzer buzzes for 0.5 second and the indicator is illuminated. 3.1.2.4 Under this mode, the corresponding protections are in effective (3- minute delayed start-up, over current, outdoor protection and evaporator low temperature protection.). Corresponding protection will act once any protection is in active. Push manual pad once to end this mode and enter the remote control pending status. The buzzer will buzz for 1 second and the indicator turn off. 3.1.3 Manual Action 3.1.3.1 Under this mode, the remote signal will be received and corresponding actions will be taken accordingly upon the receipt of the remote signal. 3.1.3.2 On entering this mode, the buzzer will buzz for 0.5 second and the indicator on. 3.1.3.3 The system will operate under the auto mode whose temperature is set to be 24 C and at the same time, the wind grille will swing automatically. 3.1.3.4 Under this mode, corresponding protections are in effective. Push manual pad to end this mode and switch over to manual cooling mode. 97

3.2 Heating Mode 3.2.1 Four-way valve opens at once, while defrosting process closes. 3.2.2 Condition for the compressor action: (Ts = set temperature, Ta = room temperature) Condition Compressor Outdoor fan Room temp. up Room temp. down 3.2.3 Indoor Fan Action Ta > Ts+4 Off Off Ta <Ts+4 On On Ta < Ts+3 On On Ta >Ts+3 Off Off 3.2.3.1 Anytime remote switchover for fan speed among high/low/auto(anti-cold air function takes priority). 3.2.3.2 Anti-cold air: Switchover between fan speed and fine tune can be set according to temperature of evaporator pipe. Condition Indoor fan speed T= Indoor exchanger temp. Indoor exchanger temp. up T<25 C Off 25 C <T<32 C Breeze Indoor exchanger temp. down T>32 C Setting fan speed T> 30 C Setting fan speed 15 C <T<30 C Breeze T<15 C Off During anti-cold air period, if indoor fan is shut down, then pre-heating/defrosting lamp is on. Once indoor fan starts, pre-heating/defrosting lamp will be off. 3.2.3.3 Auto fan of indoor fan under heating mode. Condition (T=Indoor Temp.-Setting Temp.) Room temp. up Room temp. down 3.3 Defrost (only available to heating mode) 3.3.1 Defrosting Conditions 3.3.1.1 Low temperature defrosting condition: T<3 T>3 Indoor fan speed High Low T> 1 Low T<1 Accumulated operating time when temperature of outdoor heat exchanger coil T3 is below -2 C reaches up to over 40 minutes. 3.3.1.2 High temperature defrosting condition: Under high temperature protection of evaporator, the time when outdoor fan is shut down but compressor is not has been accumulated for up to 90 minutes. It is considered that defrosting is performed when either 3.3.1.1 or 3.3.1.2 is met. 3.3.2 Defrosting Action Four-way valve, indoor fan, outdoor fan are shut down. Compressor keeps on continuously. 3.3.3 Ending Of Defrosting Condition It is considered that defrosting condition is ended when any of the conditions is met: 3.3.3.1 Operating current of compressor reaches 1.5Ie(Rating current). 3.3.3.2 Time of defrosting reaches 10 minutes. 3.3.3.3 Temperature of outdoor coil T3 is up to 20 C. 3.3.4 Ending Action of Defrost 3.3.4.1 Outdoor fan and four-way valve are open. High 98

3.3.4.2 Compressor keeps on continuously. 3.3.4.3 Indoor fan acts according to anti-cold air function. 3.3.4.4 Defrosting/pre-heating lamp continues to be on until indoor fan starts up. 3.4 Cooling Mode 3.4.1 Four-way valve is closed. If four-way valve is open before the machine enters cooling mode, then four-way valve will be closed at the first time the compressor starts under the cooling mode. 3.4.2 Conditions for the compressor and outdoor fan action (Ts = set temperature, Ta=room temperature) Condition Compressor Outdoor fan Room Temp. up Room Temp. down 3.4.3 Action of Indoor Fan Ta> Ts+1 On On Ta<Ts+1 Off Off Ta> Ts On On Ta<Ts Off Off 3.4.3.1 HIGH/LOW/AUTO fan can be switched over for your comfort. 3.4.3.2 Auto fan under cooling mode. Condition (T=Indoor Temp.-Setting Temp.) Temp. up Temp. down T<4 T>4 Indoor fan speed Low High T> 1 High T<1 Low 3.5 Dehumidifying Mode 3.5.1 Dehumidifying mode is the cooling operation, under which the indoor fan is high and outdoor fan is low. 3.5.2 If certain protective condition is met, operation will be carried out. 3.6 Auto Mode 3.6.1 Under auto mode, the indoor fan is set to be auto (refer to auto fan under cooling, heating). 3.6.2 When entering auto mode, the heating, fan only or cooling operation will be automatically chosen according to the room temperature Ta and the set temperature Ts. 3.6.2.1 When Ta < Ts - 1 c, it performs the heating operation with a set temperature of Ts - 10 c (refer to the heating mode). However the cool only model will be in low fan. 3.6.2.2 When Ts + 2 c Ta Ts - 1 c, it will be in low fan. 3.6.2.3 When Ta > Ts +2 c, it performs the cooling operation with a set temperature of T (refer to the cooling mode). 3.6.3 After one mode is chosen, if the condition Ta > Ts+1 c or Ta < Ts - 4 c lasts for 15 minutes, meanwhile the compressor doesn't start up within consecutive 15 minutes, the operation mode will be re-chosen according to the Ta and Ts. 3.6.4 If certain condition is met, then the corresponding protective function will be executed. 3.7 Fan Only Mode 3.7.1 Under this mode, four-way valve, compressor and outdoor fan are shut down. 3.7.2 High/Low/Auto fan can be switched over through manual control. Auto fan will be controlled in line with cooling auto fan with temperature set to be 23 C. 3.7.3. Under this mode, operation lamp will be on. 99

4. Other Functions 4.1 LED Display Operation lamp, timer lamp, defrosting/pre-heating lamp, and water level alarm lamp. 4.1.1 Operation Lamp When the operation is recovering, it will blink at 1 Hz. After the air-conditioner is on, the lamp will keep on. After the air-conditioner is off, the lamp will be off. When the air-conditioner is switched over from manual cooling to remote control, the lamp will be off. 4.1.2 Timer Lamp During timer operation, it will be on. 4.1.3 Defrosting/Pre-Heating Lamp When heat pump model performs defrosting or anti-cold air, it will be on. 4.1.4 In addition to displaying normal operation status, these lamps can be combined to indicate various errors. 4.2 Timer The machine should be provided with max. Interval of 24h and min. resolution ratio of 15 minutes. Off timer: 4.2.1 Timer on: set the start-up before closing down the A/C. At this moment, operation lamp will be off. Timer indicator is on and the A/C will start when the set time is up. 4.2.2 Off timer: if closedown time for the A/C is set, the A/C will close down when the set time is up. 4.2.3 On/off timer: set start-up time and closedown time before closing the A/C, it will start when the set start-up time is up and close down when the set closedown time is up. 4.2.4 Off/on timer: if both closedown time and start-up time are set, it will close down when the set time is up and start automatically when the set start-up time is up. Note: The timer is valid for one operation of the A/C. 5. Trouble Shooting 5.1 Protective Function 5.1.1 3-minute delay for the compressor start-up. At the beginning of energizing or after the stop of the compressor, 3-minute delay will be needed to start the compressor. When switching over between cooling/heating mode, the compressor stops automatically. 5.1.2 Compressor current overload protection Condition Indoor fan Compressor Outdoor fan Remark Amps up Amps down I<I 2 On On On I 2 <I< I 3 On Off Off After 5 Minutes I 3 <I Off Off After 3 Seconds I 3 <I Off Off After 3 Seconds I 1 <I< I 3 Off Off After 5 Minutes I< I 1 On On On Remark :Ie: rating current; I 1 :1.3 time Ie; I 2 :1.5 time Ie; I 3 :2.0 time Ie. 5.1.2.1 The compressor and outdoor fan closed for protection purpose will restart after 3 minutes. 5.1.2.2 During the protection, the indoor fan continues working at a set speed, while the anti-cold air function of heating and the compressor will be 3 minutes delayed to shut down for protection. 100

5.1.2.3 When there are 4 times compressor protection within one hour, the A/C will be shut down, meanwhile the operation light and timer light will be turned on, the defrosting light flashes at a frequency of 0.5Hz. This situation will be recovered only when power is switched off. 5.1.3 Evaporator protection against high temperature(heating mode) Indoor exchanger temp. up Indoor exchanger temp. down Condition Compressor Outdoor fan T= Indoor exchanger temp. T<50 C On On 50 C <T<56 C On Low speed 56 C <T<60 C On Off T>60 C Off Off T>54 C Off Off 45 C <T<54 C On Off T<45 C On On Note: During protection, the indoor fan continues operating at a setting speed, while the anti-cold air function of heating and the compressor will be 3 minute delayed to shut down for protection. 5.1.4 Evaporator Protection against low temperature(cooling mode) 5.1.4.1 When the evaporator pipe temperature 2 c and this lasts for 5 minutes, the compressor and outdoor fan will be shut off. 5.1.4.2 When the evaporator pipe temperature 7 c, it recovers. 5.1.4.3 When T3<31 c, outdoor fan performs low fan 5.1.4.4 When T3 31 c, outdoor fan performs high fan. 5.1.4.5 The restart of the compressor shall execute the delay protection. 5.1.5 Anti-cold air protection Only available to heating mode, including heating mode, heating operation under auto mode. 5.1.6 Condenser high temperature protection 5.1.6.1Only available to cooling (incl. cooling mode, cooling operation under auto mode) and dehumidifying mode. 5.1.6.2 Action condition Outdoor exchanger temp. up Outdoor exchanger temp. down Condition Compressor Outdoor fan T=Outdoor exchanger temp. T>65 C Off Off 5.1.6.3 Delay protection should be performed when the compressor restarts. 5.1.7 Single Phrase Compressor Start-up Control Single phrase compressor must have start-up circuit: T<56 C On On T>60 C Off Off T<50 C On On 1 second before the start-up of the compressor, the chip will output high level consecutively for 5 seconds in order to engage the start-up capacitor that will be open afterwards. 5.1.8 Outdoor Protection 5.1.8.1 When outdoor protection signal is high level, outdoor door unit will perform protection: the whole machine will be shut down while the LED will indicate the corresponding protection signal. 101

5.1.8.2 The A/C will recover if outdoor errors are eliminated after the outdoor protection occurs. 102

5.2 Self-diagnosis 5.2.1 Indoor unit No. Type Contents LED Flashing Remark 1 protection Over current protection of the compressor occurs 4 times in 1h Lamps of operation, timer, defrosting (only fan) flashing simultaneously at 5Hz. 2 protection Outdoor protection (absent phrase, phrase All lamps flashing at 5Hz sequence and temperature protection) 3 error Room temperature sensor checking channel Timer lamp flashing at 5Hz is abnormal 4 error Evaporator sensor checking channel is abnormal Operation lamp flashing at 5Hz 5 error Condenser sensor checking channel is abnormal Defrosting lamp flashing at 5Hz 6 error Temperature fuse is melt(reserved) Operation lamp and timer lamp flashing at 5Hz Whole unit is shut down. It cannot recover unless power is cut off Recover automatically after errors are eliminated 5.2.2 LEDs for the indication of outdoor trouble(3 phase type,3hp) Type Contents LED1 LED2 LED3 Normal Off Off On Trouble Phase sequence On Off On Trouble Overload of current Off On On Trouble Lack of phase On On On Trouble Protection of pressure On On On 5.2.3 LEDs for the indication of outdoor trouble(3 phase type,5hp) Type Contents LED1 LED2 LED3 Trouble Phase sequence Flash Off Off Trouble Lack of phase Flash Off Off Trouble Protection of pressure Flash Flash Off Trouble Overload of current Off Off Flash Trouble Open-circuit and short-circuit trouble of T3 Off Flash Flash Trouble Open-circuit and short-circuit trouble of T4 Off Flash Off Trouble High temperature protection of condenser Flash Flash Flash 103

CN 3 8 CN 3 7 Y & G B L A C K RE D Part 4. Wiring Diagram 1 MHA-26CR (220-240V~) INDOOR UNIT: L N 1 2(N) 3 4 OUTDOOR UNIT: RT 3 XS 1 XP 1 3 2 CURRE NT DET ECT OR B OA RD CN3 6 CN3 5 T 5 F AN2 RE D CODE P ART NAME WHI T E WHI T E X T 6 CAP 2 3 4 B ROWN GR E N B L A CK Y E L L OW B L A CK R E D X T 4 BL ACK RE D A1 R E D K M1 RE D RE D A2 B L A CK BL ACK Y& G Y& G C S COMP B L A C K R C1 WHI T E XS 3 XP 3 XS 4 XP 4 X T 3 3 4 T O I NDOOR UNI T T O I NDOOR UNI T 104

2 MHA-26HR(220-240V~) INDOOR UNIT: OUTDOOR UNIT: B. H. T CRANKCASE HEATER 105

3 MHA-26CR (380V, 3N~) INDOOR UNIT: OUTDOOR UNIT: 106

4 MHA-26HR (380V, 3N~) INDOOR UNIT: OUTDOOR UNIT: 107

RED 5 MHA-36CR,MHA-48CR INDOOR UNIT: OUTDOOR UNIT: CN301 UNI T3 TT1 XS8 XP8 3 OR2 RT3 CN304 XP7 XS7 3 CN305 TOINDOORUNI T XP3 CN303 FAN2 CN302 RED BLUE KM1 A2 A1 1 2 3 4 5 6 21 22 RED K1 XT5 FAN3 4 WHI TE RED V U COMP W XT7 XT4 RED TOINDOORUNI T XT1 TOINDOORUNI T XT1 108

RED 6 MHA-36HR,MHA-48HR INDOOR UNIT: OUTDOOR UNIT: XS8 XP8 CN301 UNI T3 TT1 CN304 CN302 3 OR2 CN305 CN303 RT3 XP7 XS7 3 TOI NDOORUNI T XP3 FAN2 RED 4 BLUE A1 KM1 A2 1 2 3 4 5 6 21 22 WHI TE V COMP RED RED RED U HEAT K1 XT5 BLUE XT6 FAN3 W XT7 S. V. XT4 TOI NDOORUNI T XT1 RED YELLOW TOI NDOORUNI T XT1 109

7 MHA-24HRN2(220-240V~) INDOOR UNIT: CAP1 CN1- CN16 T4 FAN1 RT1 RT2 XP1- XP3 XS1- XS3 XT1 L N 1 2 3 XT1 OUTDOOR UNIT: CAP1 VALVE CAP1 R S Y&G C WHI TE RED BLACK XP1 RT3 XS1 RED XT1 1 N 3 4 5 110

8 MHA-24HRN2, MHA-30HRN2 (380V,3N~) INDOOR UNIT: CAP1 CN1-16 T4 FAN1 PUMP RT1 RT2 XP1- XP7 XS1- XS7 XT1 XT3 A B C N 1 2 3 4 5 XT1 OUTDOOR UNIT: 111

9 MHA-36HRN2(380V,3N~) INDOOR UNIT: OUTDOOR UNIT: H- PRO K1 XS9 XP9 XS8 XP8 CN206 CN203 CN208 COMP FAN3 RT4 RT3 CN201 CN100 CN200 T201 CAP3 S. V. XT5 KM1 KM1 HEAT S. V. XT4 XT7 XT5-7 FAN3 H- PRO T201 COMP RT3 CAP3 XT6 HEATER XS8-9 XP8-9 CN100-208 K1 XT4 1 2 3 4 XT3 N RT4 XT3 T5 112

10 MHA-48HRN2,MHA-60HRN2 INDOOR UNIT: OUTDOOR UNIT: H- PRO K1 XS9 XP9 XS8 XP8 CN206 CN203 CN208 COMP FAN3 FAN4 RT4 RT3 CN201 CN100 CN200 CAP3 CAP4 S. V. XT5 KM1 KM1 HEAT S. V. XT2 XT7 XT5-7 FAN3 H- PRO T201 COMP RT3 CAP3 XT6 HEATER XS8-9 XP8-9 CN100-208 FAN4 K1 XT2 1 2 3 4 XT1 N RT4 XT1 CAP4 T5 113

ITEM C1 C3,C4 CAP1 CAP2 CNO-16 COMP CT F1+F2 FAN1 FAN2 K1 K2 K3 K4 KM1 KM2,KM3 M PUMP R1-R3 RS RT1 RT2,RT3 S.V.T KP1 XS1-XS3 XT1,XT2,XT4 XT3 XT5 T4 NAME CRANECASE HEATING CAPACITY FOR COMPRESSOR RUNNING CAPACITY FOR COMPRESSOR STARTING CAPACITY FOR INDOOR FAN CAPACITY FOR OUTDOOR FAN P.C.BOARD SOCKET COMPRESSOR CURRENT MUTUAL INDUCTOR THERMAL CUT-OUT INDOOR FAN OUTDOOR FAN TEMPERATURE PROTECTION SWITCH PIPE OVERLAOD SWITCH WATER LEVEL WARNING SWITCH THERMAL PROTECTION SWITCH A/C CONTACTOR RELAY SWING MOTOR DRAIN PUMP ELECTRIC HEATING PIPE RELEASE RESISTANCE ROOM TEMPERATURE SENSOR PIPE TEMPERATURE SENSOR 4-WAY VALVE MIDDLE CONNECTOR MIDDLE CONNECTOR 6-WAY TERMINAL BLOCK 3-WAY BIGGER TERMINAL BLOCK MIDDLE TERMINAL BLOCK TRANSFORMER 114

Part 5. External Static Pressure of the Indoor Fans Pa Pa 300 250 200 175 150 125 100 75 50 25 1000 1100 1200 1300 1400 1500 1600 m 3 MHA-18HR High speed Med. speed Low speed 300 250 200 175 150 125 100 75 50 25 1000 1100 1200 1300 1400 1500 1600 m 3 High speed Med. speed Low speed MHA-26H(C)R MHA-24H(C)R(N2) Pa 300 250 200 175 150 125 100 75 50 High speed Med. speed 25 1500 1700 1900 2100 2300 2500 2700 m 3 MHA-36(48)H(C)R(N2) Low speed 115