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Multi Variable Heat Pump WALL Mounted Type Indoor Unit 

1 Safety Precautions   

WARNING 

(1) Follow this instruction to complete the installation work. Please read this manual carefully before unit 
startup and service. 

(2) Wire size of power cord should be sized correctly. The damaged power cord and connection wire should 
be replaced by specialized cable. 

(3) After connecting the power cord, please affix the electric box cover properly. 

(4) Never fail to comply with the nitrogen charge requirements.Charge nitrogen when welding pipes. 

(5) Never short- circuit or cancel the pressure switch to prevent unit damage.   

(6) Connect the wired controller before energization; otherwise wired controller  could be damaged. 

(7) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant   
leakage, electric shock, or fire, etc. 

(8) Do not insert fingers or objects into air outlet/inlet grille.  

(9) Open the door and window and keep good ventilation in the room to avoi d oxygen deficit when gas/oil 
heating equipment is used. 

(10) Never start up or shut off the air conditioner by plugging or unplugging  the power cord. 

(11) Let the unit run for at least five minutes after startup; otherwise it will affect oil return of the compressor. 

(12) Do not allow children operate this unit. 

(13) Do not operate this unit with wet hands. 

(14) Turn off the unit or cut off the power supply before cleaning, otherwise electric shock or injury   
may occur. 

(15) Never spray or flush water towards unit, otherwise malfunction or electric shock may occur. 

(16) Do not expose the unit to the wet or corrosive conditions. 

(17) Under cooling mode, please don't set the room temperature too low. Keep the temperature difference 
between indoor and outdoor unit within 5°C  (9

˚

F). 

(18) User is not allowed to repair the unit. Faulty service may cause electric shock or fire. Please   
contact a qualified service technician for help.   

(19) Before installation, please check if the power supply  matches the requirements specified on the 
nameplate.   

(20) Installation should be conducted by dealer or qualified personnel. Please do not attempt to install the unit 
yourself. Improper handling may result in water leakage, electric shock or fire etc.  

Summary of Contents for B-HW-2.2(07)-A3AK

Page 1: ...y before operation and retain it for future reference Specifications illustrations subject to change without notice or incurring obligations Multi Variable Heat Pump Wall Mounted Type Indoor Unit Mode...

Page 2: ...l capacity of outdoor units otherwise poor cooling or heating performance may result 5 Direct operators or maintainers should keep this manual for future reference 6 If this unit fails to operate norm...

Page 3: ...nnect Cables and Terminals of Wiring Board 9 5 2 Power Cord Connection 9 5 3 Connection of Communication Line of IDU and ODU 10 5 4 Connection of Communication Line of Wired Controller 10 5 5 Illumina...

Page 4: ...when gas oil heating equipment is used 10 Never start up or shut off the air conditioner by plugging or unplugging the power cord 11 Let the unit run for at least five minutes after startup otherwise...

Page 5: ...t thinner or gasoline will damage the unit appearance Only use soft cloth with a little mild detergent to clean the outer casing of unit 26 If anything abnormal occurs such as burning smell please pow...

Page 6: ...tioners No Part Name No Part Name Surface panel Guide louver Filter Drain pipe Wiring cover 2 2 Rated Operating Condition Item Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C F Wet Bulb T...

Page 7: ...stalled at another location 4 The appliance shall not be installed in a laundry room 5 The indoor unit should be installed at least 2 3m 7 5 ft above the floor 3 2 Requirements for Communication Line...

Page 8: ...s shall be twisted together 3 If unit is installed in or near strong electromagnetic field use shielded wire 3 3 Electric Installation Model Power Supply MCA A MOP A B HW 2 2 07 A3AK 208 230V 1ph 60Hz...

Page 9: ...he installation of the rear panel Fig 4 2 1 Use a level to hang the rear panel Since the drainage pipe is on the left side it is necessary to adjust the rear panel to make its left side a little bit l...

Page 10: ...in 5 seconds press button and then press button three times After finishing setting UC is displayed on receiver light board for 5 seconds and MASTER icon is displayed on wired controller 4 3 2 Setting...

Page 11: ...e connection pipe with two leading pipes and then tighten the joint nuts Connect the connect pipe with the two relative leading pipe tie the nut on tie in of the connect pipe tightly Notes Be careful...

Page 12: ...ion wire between indoor unit and outdoor unit 8 Adjust the static pressure via wired controller as needed 5 1 Connect Cables and Terminals of Wiring Board Connection of Wire and Patch Board Terminal 1...

Page 13: ...f indoor unit as shown in Fig 5 3 1 Fig 5 3 1 Fig 5 3 2 4 Secure the communication line to the electric box with the wire 5 In order to ensure the reliability of communication between IDU and ODU and...

Page 14: ...address settings Address 1 is for main controller Address 2 is for slave controller Detailed setting please refer to the instruction manual of wired controller 5 6 Installation of the indoor unit 1 Wh...

Page 15: ...door temperature 2 For more efficient heating affect adjust the louvers downward For better cooling affect adjust the louvers more horizontal 3 When the air conditioner is running don t leave windows...

Page 16: ...rrows to take down the panel 2 Clean the panel Clean it with a soft hair brush water and mild detergent and then dry it 3 Reinstall the panel As shown in Fig II install the stands of both ends of the...

Page 17: ...he inlet or outlet vent of the air conditioner is blocked 2 Check if the ground wire is securely attached 3 Check if the batteries in the wireless remote controller need replacing 4 Check if the air f...

Page 18: ...it Network Address Error L3 Water Full Protection LC Outdoor Indoor Incompatibility Error dH Wired Controller Circuit Board Error L4 Wired Controller Power Supply Error d1 Indoor Unit Circuit Board Er...

Page 19: ...Is the power supply connected Is the circuit breaker properly set Is the voltage too high or too low Is the TIMER set on the wireless remote controller Poor cooling heating effect Is the thermostat s...

Page 20: ...1 The wireless remote controller can make the guide louver swing up and down or makes the guide louver stop at a certain 2 Press the SWING button on the wireless remote controller to make the guide l...

Page 21: ...Specifications illustrations subject to change without notice or incurring obligations O Fallon MO 12 15 Nortek Global HVAC LLC 2015 All Rights Reserved 550E 1215...

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