Installation Manual for Outdoor Unit MVHP036MV2AA MVHP048MV2AA MVHP056MV2AA No.
User Manual Contents Product Features ���������������������������������������������������������������������������������������������������������������������������������������������������������������1 Safety precautions �������������������������������������������������������������������������������������������������������������������������������������������������������������1 Transportation and Lifting ������������������������������������������������������������������������������������������������������������
Product Features • The outdoor uint adopts "simultaneous control" type, all indoors should be heating or cooling simultaneously. • To protect compressor,before startup,the unit should be electrified for 12 hours.If the unit is not used for a long time, please cut off the power to save energy, or the unit will consume the power. This manual describes the installation and installation of outdoor units. For the installation of the indoor machine, please refer to the instruction manual of the indoor unit.
Safety precautions • The maintenance cover plate of the indoor or outdoor unit should not be removed when the main circuit power supply on. Shut off power before removing. • Refrigerant leakage can cause breathing problems. In the event of a refrigerant leak, close the main valve, extinguish any flame and contact a local servicer immediately. • Use the proper breaker and surge protector. If not used, an electric shock or fire may cause injury or damage.
Transportation and Lifting Lifting Over 60 degrees Please do not remove the packaging until the unit is close to the installation location. rope 2.3~3.3 ft CAUTION • Do not place anything on the device • Use two ropes for lifting the outdoor unit Hoisting method Hoist the unit slowly and ensure that it is level. ① Removal of the outer packing is strictly prohibited ② Hoist outdoor unit packaging as shown using two ropes. Do not remove packing tape and packing box.
Outdoor unit installation In installation, please check specially the below items: • • • • • • • • • If the connected units quantity and the total capacity is in the allowable range? If the refrigerant pipe length is in the limited range? If the pipe size is proper? And if the pipe is installed horizontally? If the branch pipe is installed horinzontally or vertically? If the additional refrigerant is counted correctly and weighed by the standard balance? If there is refrigerant leakage? If all the indoor p
Installation instruction Note: 1. In snowy areas, install the unit on a bracket or under a snow-proof cover to prevent the accumulation of snow. 2. Do not install the unit at a place where flammable gas exists. 3. Install the unit in a sturdy location. 4. Install the unit in a level location. 5. When being installed in a location with strong winds, set the air outlet of the unit perpendicular to the wind direction. Also secure the unit with the bolts. 6.
Installation instruction (3) Multi-unit installation in front and back (unit: in.(mm)) The top and two side surfaces must be exposed to open space, and barriers on at least one side of the front and back shall be lower than the outdoor unit. Above 120(3000) • The installation service spaces shown in the illustrations are based on an air intake temperature of 95°F(35°C)(DB) for COOL operation.
Installation instruction If the coating on the fastening area is stripped off, the nuts rust easily. Dimensions (bottom view) (unit of measurement: mm) A leg pitch1 B leg pitch2 C Front grill (air outlet side) D Drain hole E Bottom frame F Knock-out hole (for piping line) When fastening and loosing the nut, operate with double spanners, because only one spanner cannot execute firmly.
Installation instruction Pipe specification: b a 1. Pipe "a" diameter (between indoor and branch pipe) (depends on indoor pipe) Please refer to the indoor air conditioner manual. a b 2. Pipe "b" diameter (between branch pipes) Total indoor capacity after the branch pipe (x1000Btu/h) X<38 38≤X< 80 Gas pipe (in) Liquid pipe (in) Ø5/8 Ø3/8 Ø3/4 Ø3/8 a a Copper pipe selection: 3.
Installation instruction Long pipe and high drop 1. Allowable pipe length and height difference First branch piping Indoor unit Length of the longest piping L Length of the longest piping after the first branch piping L Drop height between indoor units Drop height between indoor and outdoor units Outdoor unit h≤49ft.
Installation instruction Note: 1. When connecting the pipe to the outdoor unit, please pay attention to the outdoor pipe dimension. 2. When changing the diameter between pipes and between the units, please change on the branch pipe side. 3. Be sure to blow nitrogen when welding. If not, oxides will be produced and cause heavy damage. Take precautions to prevent water and dust from getting into the pipe.
Installation instruction • Weld the pipe while charging with nitrogen or it will cause impurities (including a film of oxidation) to clog the capillary and the expansion valve which may lead to deadly accidents. • Protect the pipe ends from getting water and other impurities into the pipes (from welding, filed or being sealed with adhesive tape). Taping Flat Brazing Adhesive tape • The refrigerant pipe should be clean. The nitrogen should flow at pressure around 29PSI(0.
Installation instruction The unit is charged with R410A refrigerant. The details below should be paid attention to: • To prevent different oils from getting into the pipe, please use the specific tool for R410A, especially for manifold gauge and charging hose. • To prevent the compressor oil from getting into the refrigerant cycle, please use the anti-counter-flow adapter. (8) Check vale operation • Remove the valve cap.
Electric wiring and the application WARNING Inspect • Turn off the main power switch of the indoor and outdoor unit for 1 minute or more before wiring or servicing. • To prevent damaging the wires and electrical components, avoid installing around animals. It may lead to the occurrence of fire. • To prevent damaging the wires, avoid contact with refrigerant pipes, steel edges and electrical components. It may lead to the occurrence of fire. CAUTION • Secure the power cord with a wire tie in the unit.
Electric wiring and the application The outdoor and all indoor units are connected in parallel through 2 non-polar wires. Three wiring options between the wired controller and indoor unit: A. One wired control to control multiple units, i.e. 2-6 indoor units, as shown in the above figure, (1-2 indoor units). The indoor unit 2 is the wire controlled main unit and others are the wired controlled sub units.
Electric wiring and the application Indoor power source and communication wiring WARNING • Power lines must be copper wire. • All indoor and outdoor units must be grounded properly. The ground wire must not be grounded using a gas pipe, water pipe, lightning rod or telephone wire. If the grounding is correct it may cause electric shock or fire. • Power supply must be installed with an earth leakage circuit breaker, otherwise it may cause electrical shock or fire.
Electric wiring and the application Outdoor unit electrical wiring diagram Ground wire Power cord Communication line Secure the power line and communication line with a wire clip on the terminal block Power lines and communication lines need to be flame retardant and use high temperature resistant insulation Cable sheath Use plastic pipe insulation on the refrigerant pipe Protect the power line and communication line hole with a wire sheath Power line and piping need to be wrapped with flame retardant tap
Installation and debugging 1. Installation and debugging method of outdoor machine SW01 SW02 0 1 2 3 4 0 5 6 7 8 9 A B C D E F 0 1 2 3 5 6 7 1 8 9 A B D E Seven segment digital tube display content Outdoor machine fault code The machine units are not locked and no fault, in turn cycle "in the machine number, machine capacity, power supply type". (1) The connection machine number: display "U" + machine units. Such as "U08" means that the machine is connected to the 8 internal machine .
Installation and debugging SW01 SW02 1 F 2 0-F 3 0-F 4 5 0-F 0-F 6 0-F 7 0-F 8 0-F 9 A B C 0-F 0-F 0-F 0-F Seven segment digital tube display content Forced heat alternating display "HHH" (according to Start 5 seconds to enter, all the internal mechanism of hot running, press Stop to exit for 5 seconds).
Installation and debugging 3. Outdoor unit PCB dipswitch setting(Pay attention to the identification of the computer board). In the following table, 1 is ON, 0 is OFF.
Failure code Inverter outdoor unit failure code Digital tube Indication indication on wired on master controller unit (hex) Failure code definition Failure description AD value is below 11(open circuit) or over 1012(short circuit) for 60seconds, in cooling mode, if the sensor is abnormal, the unit operate in defrosting and within 3 minutes after defrosting, no alarm AD value is below 11(open circuit) or over 1012(short circuit) for 60seconds, in defrosting and within 3 minutes after defrosting, no alarm A
Failure code Digital tube Indication indication on wired on master controller unit (hex) 39-1 39-1 39-2 39-2 40 40 43 43 46 46 53 53 54 54 57 57 58 58 59 59 60 60 61 61 Failure code definition Failure description After compressor is running, compression ratio 8. for Compression ratio continuous 5 minutes stop and alarm.2 minutes and 50 too high protection seconds later, resume automatically, if it occurs 3 times in an hour, confirm the failure.
Failure code Digital tube Indication indication on wired on master controller unit (hex) Failure code definition Failure description Remarks 62 62 Valve plate module error(sending by Reserved valve plate) 63 63 Valve plate dial setting error No valve plate module dial but the valve plate module is detected.
Failure code Digital tube Indication indication on wired on master controller unit (hex) Failure code definition Failure description 114 114 Voltage too low of DC bus Voltage of power source is too low line of transducer 115 115 Voltage too high of DC bus line of transducer 116 116 117 117 118 118 119 119 120 120 121 121 122 122 123 123 Voltage of power source is too high Communication abnormal between transducer and Communication is disconnected control PCB Compressor startup fail
Trial operation and the performance Confirm the type of outdoor machine and the number of inside machine • After installation, please confirm that the outdoor computer board BM1_1 is in the 0 state and then check the digital display. If the number of indoor units, the outdoor unit type and the power supply voltage is correct, change the BM1_1 dial to the 1 state.
Trial operation and the performance Trial operation • Before trial operation: Before being powered on, measure the resistance between the power terminal block (live wire and neutral wire) and the ground point with a multimeter. Check if it is over 1M Ω. If it is not, the unit will not operate. To protect the compressor, power the outdoor unit for at least 12 hours before running the unit. If the crankcase heater is not powered on for 6 hours, the compressor will not work.
Qingdao Haier Air Conditioner Electric Co.,Ltd. Haier Industrial Park,Qianwangang Road,Eco-Tech Development Zone,Qingdao 266555, Shandong,P.R.C.
