1.General information 1.1 Function: Thought AHU valve box, can realize the haier MRV outdoor unit connect with third party air handling units. As the following figure 1.2 Feature (1) (1) EXV part and control part integration, easy for translation and installation. Gas pipe is cancelled compared to the previous generation.
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1.3 System lineup Haier AHU kit provides a wide range solution for Haier MRV outdoor unit connecting with the 3rd party AHU Compatibility Outdoor MRV5 MRV SII 8-26 1Ph/220-230Ph/50/60Hz 3Ph/380- Power Supply 3Ph/380-400V/50/60Hz 415V/50/60Hz 3Ph/380-400V/50/60Hz 1.4 Configuration AH1-070B/AH1-140B/AH1-280B AH1-560B/AH1-730B 1.5 Nomenclature Code 1,2...
6.Installation Parts and function AH1-070B AH1-140B AH1-280B Outdoor unit side Indoor unit side Liquid Pipe (Ø9.52) Liquid Pipe (Ø9.52) AH1-560B AH1-730B Indoor unit side Outdoor unit side Liquid Pipe (Ø12.7) Liquid Pipe (Ø12.7) Safety • f the connection kit is transferred to a new user, this manual shall be transferred to the user, together with the conditioner.
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Warning • lease ask the special maintenance station for installation and repair. Water leakage, electric shocks or fire accidents might be caused from improper installation if you conduct the installation by your own. • he installation should be conducted properly according to this manual. Water leakage, electric shocks or fire accidents might be caused from improper installation.
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• his appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. •...
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Do not apply force to other parts, especially a refrigerant tube and an electrical cabinet. • Concerning the installation of the outdoor and indoor units, refer to the installation specification of each unit. Accessories Confirm that the accessories below are packed together. AH1-070B, AH1-140B, AH1-280B Variable Thermal suspending...
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• Please according to the following table to select the connection kit model. Table1: Total capacity of indoor unit: Connection kit The capacity of the air handing unit (kW) The quantity of the air handing unit AH1-070B 3≤x≤7KW (1-3HP) AH1-140B 7<x≤14KW (3-5HP) AH1-280B 14<x≤28KW (5-10HP)
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6.4 Installation procedure 6.4.1. Pre-installation The installation location selected shall meet the following conditions and be approved by users. • The strength shall be sufficient to withstand the weight of the connection kit • There is no significant tilt on the plane. •...
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Dividually mounted (mm) Max 5000 Electrical box Connection kit Manhole must be arranged Electrical box on the side of the electrical 6.4.2. Preparation before installation (1) Connection kit dimension (mm) AH1-070B AH1-140B AH1-280B...
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Foundation bolt Thick cement plate Long nuts or turnbuckle Lifting tools Lifting bolt Connection Less than 1m Less than 1m Note: All the parts in the figure are purchased locally. Fig.2 See the Fig.1 & Fig.2 to install the lifting bolts and hoisting tools. •...
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Install the lifting tools on the lifting bolts according to the instruction of the Fig.2 Be sure to follow the stipulations on products locally purchased to use nuts (M8 or M10 of 3 pieces for 4 positions) and gaskets (M8 with the outer diameter of 24~28 mm and M10 with that of 30~34 mm of 2 pieces for 4 positions) on the upper and lower sides of the lifting tools.
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The high-pressure gas pipe, suction gas pipe, liquid pipe must be provided with reliable thermal insulation. In the Paste the refrigerant oil here absence of thermal insulation, liquid leakage may happen. The outdoor unit is already filled with refrigerant. To connect the pipes to connection kit or remove them from connection kit, Torque spanner do use both spanner and torque wrench, as shown in the Fig.1.
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Piping maintenance During installation, provide maintenance as specified in the table in order to prevent water, foreign matter and dust from entering the pipes. Location Work period Maintenance method More than 1 month Screw Outdoors Less than 1 month Screw or strap Indoors ——...
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Select refrigerant branching dimensions between outdoor units and connection kit, between connection kit and indoor units according to the Operation & Installation Manual of outdoor units and indoor units. Dimensions (mm) of connection pipe of the vale box Dimension (outer diameter) model Liquid pipe / convertible dimension AH1-070B AH1-140B Ø6.35/Ø9.52 AH1-280B AH1-560B Ø12.7/Ø15.88...
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Pipe connection Piping specifications Indoor Outdoor When the connection kit and the piping specifications are not the same, can import and conversion by variable diameter. (the transfer pipe size selection see accessories) Pipe insulation Please use the auxiliary insulation cylinder and tie wire for insulation works according to Fig.1 after the gas leakage test.
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6.6 Temperature Sensor Installation (1) TC2 sensor should be attached after the distributor, on the coldest part of the heat exchanger pipe. (2) TC1 sensor should be installed approximately 200mm behind the header of AHU heat exchanger. (3) TC1/2 sensor should be insulated for optimized system performance. (4) Room temperature sensor should be installed where room air enters.
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6.7 Electrical wiring Warning • Electrical construction should be made with specific mains circuit by the qualified personnel according to the installation instruction. Electric shock and fire may be caused if the capacity of power supply is not sufficient. • During arranging the wiring layout, specified cables should be used as the mains line, which accords with the local regulations on wiring.
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The wiring for the power line and signal line of connection kit • Power cable and communication wire must be fixed firmly. • Each connection kit must be earthed well. • When power cable exceeds the range, thicken it appropriately. •...
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Notes: (1) The above wiring example is only for reference. The number of connection kits and indoor units shall be subject to the field installation. (2) Two-core non-polar communication line with shield shall be adopted for communication lines between the connection kit and the indoor/outdoor unit.
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Wiring connection Refer to the wiring diagram of electrical wiring of a connection kit – for wiring connection of connection kit. (1) Connection communication line Remove the cover of the electrical cabinet of the valve cage. Introduce communication lines for outdoor and indoor units to the through holes at the lower right of the electrical cabinet and crimp them on the communication terminal block respectively.
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(3) Electrical specifications Power supply 1PH,220-240V~,50/60Hz Power consumption 2.54-3.5 Power supply current 0.02 Power supply breaker Power supply cable 3x 1.5mm² Communication cable 2x0.75mm² shielded line Gas pipe sensor, Use the configurated sensor by factory Thermistor Liquid pipe sensor, Use the configurated sensor by factory Use the configurated sensor by factory PMV wiring Use the configurated cable by factory...
… … … …… 15# Slave Unit AHU Capacity SW3_5 AH1-070B Capacity SW3_8 AH1-140B AH1-280B AH1-560B/AH1-730B 2. Code setting for the postal address of the connection kit: SW2 is used for AH devices address setting, 1 is ON, 0 is OFF Manner of set Set the address with automatism (default)...
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Communication Center controller [2] [3] [4] [5] [6] [7] [8] address address SW2_2 communication address of first SW2_8 indoor unit address...
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Communication Center controller [2] [3] [4] [5] [6] [7] [8] address address SW2_2 communication address of first SW2_8 indoor unit address … … … … … … … …… …… 126# 127# 3. Code setting for changing the control methods of connection kit: 1 is ON, 0 is OFF Control methods plan A SW1_1...
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Haier AHU kit can provide mode signal to DDC or AHU unit PCB directly to control the AHU unit, e.g. if the DDC or 3rd party AHU unit PCB receives defrost signal from AHU kit, AHU fan motor will be controlled.
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Haier AHU kit controls 3rd party AHU units such as the on/off, temperature settings, fan speed adjustment and operation mode etc. b) Haier AHU kit can provide mode signal to DDC or AHU unit PCB directly to control the 3rd party AHU fan motor. It’s required to output either the dry contact or strong electricity signal.
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Connect method: 1. one by one: the plan A or plan B or plan C or plan D is avaiable 2. one outdoor with multiple AHU valves (AHU has only one coil): the plan A or plan B or plan C or plan D is avaiable , and the max. qty of AHU valve boxes is 4.
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3. one outdoor with multiple AHU valves (AHU has multiple coils): the plan A or plan B or plan C or plan D is avaiable , and the max. qty of AHU valve boxes is 4. 4 . one outdoor with multiple AHU valves (AHU has multiple coils): the plan A or plan B or plan C is avaiable , and the max.
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5. Mixed connetion: the plan C or plan D is avaiable . 5. Mixed connetion (multiple outdoor units with one AHU,AHU has multiple coils): Note: This connection method is not recommended.
9. Failure code 1. Confirm that the cover of the electrical cabinet of the connection kit is of good sealing. 2. Conduct commissioning in accordance with the installation and use specification attached to the outdoor unit. At the time of energization, because electronic expansion valve will start initialization (open/ close), there may be click lasting for about 20s, which is normal.
10.Troubleshooting [1~3] Sensor fault If sensor If sensor resistor/characteristic is Replace valve terminal is proper and its deviation box PCB fixed well Is within ±3℃ Replace connecting sensor Replace sensor [5] Fault of connection kit EEPROM Power off and check if the Reconnet EEPROM is fixed well Replace...
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[6] Fault of communication between Connection kit & outdoor units Check if communication wire of Reconnect indoor unit is fixed well Replace Check if the communication line communication is damaged or short circuit wire Replace connection kit PCB...
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[7] Fault of communication between connection kit and wired control Check if communication wire of Reconnect wired controller is fixed well Replace Check if the communication line communication is damaged or short circuit wire If it is normal after changed the wired controller Replace connection kit PCB...
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[8Fault of connection kit water drainage Check if the CN13 is short circuit Short circuit CN13 [9]Fault of duplicate connection kit address Check if the valve box address is duplication with indoor units Resetting address [20] Outdoor unit fault Referring to the outdoor unit troubleshooting methods...
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Haier Commercial Air Condition ADDRESS: No.1 Haier Road, Hi-tech Zone,Qingdao 266101 P.R.China Web: Http://www.haier.com Haier reserves the right to make change without any notice.