Service Manual
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Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Mode Rated Indoor DB ℃ 27 Cooling WB ℃ 19 Outdoor DB ℃ 35 WB ℃ 24 Indoor Heating ... for wall mounted type, "Q" stands for chiller system, "E" stands for ceiling concealed type, "U" stands for outdoor unit Air Conditioner 1.2 Brief Introduction for T1、T2、T3 working condition Type of Conditioner Cooling Only Heat pump Air T1 18 ℃~43℃ -7℃~43℃ Electricity Heating ~43℃ Climate type T2 10℃...
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Mode Rated Indoor DB ℃ 27 Cooling WB ℃ 19 Outdoor DB ℃ 35 WB ℃ 24 Indoor Heating ... for wall mounted type, "Q" stands for chiller system, "E" stands for ceiling concealed type, "U" stands for outdoor unit Air Conditioner 1.2 Brief Introduction for T1、T2、T3 working condition Type of Conditioner Cooling Only Heat pump Air T1 18 ℃~43℃ -7℃~43℃ Electricity Heating ~43℃ Climate type T2 10℃...
Service Manual
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... realize the equal efficiency, saving money for you. Long-life& high efficiency air purify filter Low temperature cooling realized, super low temperature heating realized. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.4 Product features Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant R410a, which can be fixed with a weekly...
... realize the equal efficiency, saving money for you. Long-life& high efficiency air purify filter Low temperature cooling realized, super low temperature heating realized. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.4 Product features Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant R410a, which can be fixed with a weekly...
Service Manual
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...work remote controller installation electric wiring work outdoor unit foundation work schedule refrigerant inspection operation chart preparation 1. Air purging by refrigerant is different, please do not mix them. Calculate the refrigerant additional charging amount, and ... oil (POE oil) Pressure ratio 1 ■Operation flow Approx. 1.6 Approx. 1.1 prepare work 1. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 New friendly refrigerant R410A introduction: ■R410A The working pressure of the specified thickness 2. Always inspect the used...
...work remote controller installation electric wiring work outdoor unit foundation work schedule refrigerant inspection operation chart preparation 1. Air purging by refrigerant is different, please do not mix them. Calculate the refrigerant additional charging amount, and ... oil (POE oil) Pressure ratio 1 ■Operation flow Approx. 1.6 Approx. 1.1 prepare work 1. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 New friendly refrigerant R410A introduction: ■R410A The working pressure of the specified thickness 2. Always inspect the used...
Service Manual
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... nut connection Expander Expansion at pipe connection Pipe bender Pipe bending work Nitrogen gas Pipe oxidation prevention Air tightness test Welder Pipe brazing *Gauge manifold Vacuum evacuation and refrigerant Air tightness test *Charging hose charging operation check Refrigerant additional charging *Vacuum pump (with a special R410A...a number of special tools (* symbol). Use the correct refrigerant piping and materials for R410A, provide the tools separately. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ■Piping material 1.
... nut connection Expander Expansion at pipe connection Pipe bender Pipe bending work Nitrogen gas Pipe oxidation prevention Air tightness test Welder Pipe brazing *Gauge manifold Vacuum evacuation and refrigerant Air tightness test *Charging hose charging operation check Refrigerant additional charging *Vacuum pump (with a special R410A...a number of special tools (* symbol). Use the correct refrigerant piping and materials for R410A, provide the tools separately. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ■Piping material 1.
Service Manual
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... grooved pipe/φ7 0.20 2-7 1090×655×199 1150×750×300 PVC 18/20 Remote 46/44/42 28.3/34.3 7 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 2. power input W EER or COP W/W ENERGY CLASS Dehumidifying capacity 10‐³×m³/h Power cable Power source N, V, Hz Running A / A Start Current...
... grooved pipe/φ7 0.20 2-7 1090×655×199 1150×750×300 PVC 18/20 Remote 46/44/42 28.3/34.3 7 Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 2. power input W EER or COP W/W ENERGY CLASS Dehumidifying capacity 10‐³×m³/h Power cable Power source N, V, Hz Running A / A Start Current...
Service Manual
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.../6℃WB The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Item Model Function Capacity kW Sensible heat ratio Total power input W Max. power input W EER or COP W/W Dehumidifying capacity 10‐³...
.../6℃WB The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Item Model Function Capacity kW Sensible heat ratio Total power input W Max. power input W EER or COP W/W Dehumidifying capacity 10‐³...
Service Manual
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... floor or be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB ...level will be mounted in horizontal direction. It is the average sound pressure level measured from front, back, left , right directions. 2.air outlet from top: the noise level is a sound pressure noise level. The detailed method please refer to each side. 1m 1m 1m...
... floor or be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB ...level will be mounted in horizontal direction. It is the average sound pressure level measured from front, back, left , right directions. 2.air outlet from top: the noise level is a sound pressure noise level. The detailed method please refer to each side. 1m 1m 1m...
Service Manual
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... cut off After the unit being used for a long time, the base should be checked at any damages. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 3. WARNING! Safety precaution Carefully read the following important Safety Cautions. Below are listed three kinds of the... outdoor unit. If the conditioner is not repaired, the unit may harm human beings. switch off the power supply ...
... cut off After the unit being used for a long time, the base should be checked at any damages. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 3. WARNING! Safety precaution Carefully read the following important Safety Cautions. Below are listed three kinds of the... outdoor unit. If the conditioner is not repaired, the unit may harm human beings. switch off the power supply ...
Service Manual
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... with damp hands. Call the dealer to take every measure in a small room be responsible for installing the conditioner. Connect earthing wire. Air-conditioner can't be responsible for them. Nothing or nobody is installed in order to prevent the refrigerant from leaking. ..., electrical shock and fire hazard. May not use may cause fire hazard. Only use correctly-typed fuse. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA WARNING! Earthing wire should be sure to take measures to prevent suffocation accident even in -correct earthing may ...
... with damp hands. Call the dealer to take every measure in a small room be responsible for installing the conditioner. Connect earthing wire. Air-conditioner can't be responsible for them. Nothing or nobody is installed in order to prevent the refrigerant from leaking. ..., electrical shock and fire hazard. May not use may cause fire hazard. Only use correctly-typed fuse. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA WARNING! Earthing wire should be sure to take measures to prevent suffocation accident even in -correct earthing may ...
Service Manual
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...1m or more of installation satisfying the following conditions and, at four sides are not suitable for protection of electric wires from the Air outlet unit top L1 (4) Don't block the surroundings of the unit must NOT be discharged. Place where drain water may be...(2) Don't intake the strong wind directly to the Air inlet (Servicing space) outlet air-flow hole. (3) A one meter distance should be exposed to place where short-circuit is needed for the unit. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5. Place where there is not heavy snowfall...
...1m or more of installation satisfying the following conditions and, at four sides are not suitable for protection of electric wires from the Air outlet unit top L1 (4) Don't block the surroundings of the unit must NOT be discharged. Place where drain water may be...(2) Don't intake the strong wind directly to the Air inlet (Servicing space) outlet air-flow hole. (3) A one meter distance should be exposed to place where short-circuit is needed for the unit. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5. Place where there is not heavy snowfall...
Service Manual
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Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.1 Installation of outdoor unit Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring ...
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.1 Installation of outdoor unit Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring ...
Service Manual
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... OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. (1) Selection of size of the wires. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric wiring WARNING!
... OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. (1) Selection of size of the wires. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric wiring WARNING!
Service Manual
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...]_^ol_ -8. Somj_h^cha \ifnm G[mn_h -^io\f_ honm. X m_]ol_ nb_ q[mb_l `clgfsY 4. f_p_f_l Pifsnb_h_ jcj_ Jhm_ln W[mb_l `crcha j[^ -jl_j[l_^ ch `_cf^. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA -7. Installation of water drainage pipe (1) Install water drainage pipe Pipe diameter shall be installed. size: 25mm; Keep a distance of polythene; If downward...
...]_^ol_ -8. Somj_h^cha \ifnm G[mn_h -^io\f_ honm. X m_]ol_ nb_ q[mb_l `clgfsY 4. f_p_f_l Pifsnb_h_ jcj_ Jhm_ln W[mb_l `crcha j[^ -jl_j[l_^ ch `_cf^. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA -7. Installation of water drainage pipe (1) Install water drainage pipe Pipe diameter shall be installed. size: 25mm; Keep a distance of polythene; If downward...
Service Manual
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... head of the screw is less than 5mm. (3) Firstly fix it reaches the white tape. Wind the drainage hose to bear excessive force. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1-1.5m slope over 220 500mm below 75mm below 500mm below Specifications of the selected drainage hoses shall meet the requirements for the...
... head of the screw is less than 5mm. (3) Firstly fix it reaches the white tape. Wind the drainage hose to bear excessive force. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1-1.5m slope over 220 500mm below 75mm below 500mm below Specifications of the selected drainage hoses shall meet the requirements for the...
Service Manual
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Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric control box Panel limitation board installation (1)Install the panel board in the direction shown in the figure. (2)The incorrect direction will result in water leakage,meanwhile swing and signal receiving are displayed that cannot be connected. 21
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric control box Panel limitation board installation (1)Install the panel board in the direction shown in the figure. (2)The incorrect direction will result in water leakage,meanwhile swing and signal receiving are displayed that cannot be connected. 21
Service Manual
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..., drill a 7 cm dia. INSTALLING DRAIN HOSE The drain hose must be connected to ensure good drainage. Drain hose CAUTION! Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.2.2 AC122ACERA INSTALLATION PROCEDURE Install the room air conditioning unit as shown in (Fig.3). (Fig. 3) Arrange the drain hose lower than this direction.) 22 Ensure that the hole...
..., drill a 7 cm dia. INSTALLING DRAIN HOSE The drain hose must be connected to ensure good drainage. Drain hose CAUTION! Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.2.2 AC122ACERA INSTALLATION PROCEDURE Install the room air conditioning unit as shown in (Fig.3). (Fig. 3) Arrange the drain hose lower than this direction.) 22 Ensure that the hole...
Service Manual
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... indoor unit to system. Fig. 14 Indoor unit Hex bolt 8 to system. INSTALLING BRACKETS Install the brackets with a hammer. (Fig. 12) Fig. 12 3. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA CAUTION Install the drain hose at the rear; After the piping and drainage exit has been selected, drill 80mm and 50mm or...
... indoor unit to system. Fig. 14 Indoor unit Hex bolt 8 to system. INSTALLING BRACKETS Install the brackets with a hammer. (Fig. 12) Fig. 12 3. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA CAUTION Install the drain hose at the rear; After the piping and drainage exit has been selected, drill 80mm and 50mm or...
Service Manual
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... the three tapping screws Electrical component box cover CAUTION Be careful not to pinch the wiring between the contacts of the outdoor unit. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Wiring ELECTRICAL WIRING CAUTION (1) Match the terminal block numbers and connection cable colours with the operating manual: (1) Starting and stopping method, operation...
... the three tapping screws Electrical component box cover CAUTION Be careful not to pinch the wiring between the contacts of the outdoor unit. Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Wiring ELECTRICAL WIRING CAUTION (1) Match the terminal block numbers and connection cable colours with the operating manual: (1) Starting and stopping method, operation...
Service Manual
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Controller functions Mg_jZj^] \hgljhee^j YS Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 7.
Controller functions Mg_jZj^] \hgljhee^j YS Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 7.
Service Manual
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sensor Td low pressure switch condenser air-inlet temp. sensor Tc evaporator indoor ambient temp. sensor Tao assistant main capillary capillary one-way valve cooling heating 4-way valve check valve high pressure switch check valve muffle discharge temp. sensor Te condenser outdoor ambient temp. sensor Tai 3-way stop valve (liquid side) indoor coil temp. Refrigerant circuit Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA defrost temp. Commercial Air Conditioner 8. sensor Tci compressor 2-way stop valve (air side) 33
sensor Td low pressure switch condenser air-inlet temp. sensor Tc evaporator indoor ambient temp. sensor Tao assistant main capillary capillary one-way valve cooling heating 4-way valve check valve high pressure switch check valve muffle discharge temp. sensor Te condenser outdoor ambient temp. sensor Tai 3-way stop valve (liquid side) indoor coil temp. Refrigerant circuit Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA defrost temp. Commercial Air Conditioner 8. sensor Tci compressor 2-way stop valve (air side) 33