Aisin AXGP224E1 Technical Manual Download Page 19

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AWS line connection

Layout example

(When AWS is connected)

Note: If there is a height differen- ce

between the locations of indoor and

outdoor units, apply a small “trap

pipes” only on the vapor line at least

every 10 m as illustrated.

10 m

Permissible

piping
length

Maximum piping length (L)
(Equivalent length / Actual length)

L = A

70/60m or less

Permissible

height

difference

Height difference between AWS unit and
outdoor unit (H)

When outdoor unit is higher than
indoor unit

50 m or less

When outdoor unit is lower than
indoor unit

40 m or less

ATTENTION

Never exceed the maximum allowed distance between AWS and GHP. Failure in doing so can
result in malfunctioning of the units and invalidates the warranty.

WARNING

•

Always refer to AWS installation manual for maintenance clearence and position of the unit.

•

Always connect the AWS to the designed outdoor unit for AWS.

Summary of Contents for AXGP224E1

Page 1: ......

Page 2: ...2 ...

Page 3: ...ne installation 39 2 6 2 Combined installation 39 2 7 Outline diagram of refrigerant piping 40 2 7 1 Combined installation 40 2 7 2 Stand alone installation 41 2 8 Refrigerant piping installation specifications 42 2 8 1 Combined installation 42 2 8 2 Stand alone installation 42 2 8 3 Reducer selection for combined installation 43 2 9 Refrigerant piping Selecting branch pipes and permissible length...

Page 4: ...4 ...

Page 5: ...5 1 Outdoor Unit mod 8 10 13 HP 8 HP AXGP224E1 N P NATURAL GAS LPG 10 HP AXGP280E1 N P NATURAL GAS LPG 13 HP AXGP335E1 N P NATURAL GAS LPG ...

Page 6: ...e Kg 11 0 Fans Type x numbers of units Variable speed propeller type x 2 Rated total flow rate m3 h 10 020 11 640 12 780 Static pressure standard silent mode Pa 5 30 Noise level Sound pressure standard silent mode dB A 54 52 56 52 59 57 Piping Refrigerant Gas line mm Ø 19 1 Ø 9 5 Ø 22 2 Ø 9 5 Ø 25 4 Ø 12 7 Liquid line Fuel gas inch R 3 4 Exhaust gas mm Ø 80 Exhaust drain standard cold district Ø 1...

Page 7: ...7 1 2 External dimensions ...

Page 8: ...ura aria interna C Campo di applicazione in riscaldamento Kit zone fredde 20 10 0 10 20 10 20 30 All measurements are expressed as dry bulb Note Scale temperature setting on the remote control Limite superiore Limite inferiore Cooling 35 C 20 C Heating 30 C 15 C Indoor temperature C Indoor temperature C Outdoor temperature C Outdoor temperature C Allowed cooling mode temperature range Allowed heat...

Page 9: ...9 1 4 Noise level charateristics Global values dB A m Model Front Rear Right Left AXGP224E1 N P 54 53 49 50 Detection status Semi anechoic room Distance 1 m Height 1 m Front ...

Page 10: ...10 Noise level charateristics Global values dB A m Model Front Rear Right Left AXGP280E1 N P 56 56 52 53 Detection status Semi anechoic room Distance 1 m Height 1 m Front ...

Page 11: ...11 Noise level charateristics Global values dB A m Model Front Rear Right Left AXGP355E1 N P 59 59 54 55 Detection status Semi anechoic room Distance 1 m Height 1 m Front ...

Page 12: ...ll the outdoor unit in the proper distance from flammable items as required by the rel evant local and national regulations and technical standards See the reference below If the distance does not meet the requirements it could result in a fire WARNING DISTANCE FROM FLAMMABLE MATERIALS MM FRONT FRONT ...

Page 13: ... minimum installation space for providing room for intake air and inspection and maintenance operations Insufficient space could result in injury to the maintenance personnel or damage to the equipment CAUTION FRONT FRONT MULTIPLE UNIT INSTALLATION FRONT THIS SPACE MUST BE 800 MM OR MORE WHEN THE SNOW HOOD IS MOUNTED MINIMUM DISTANCE FROM SORROUNDING OBJECTS MM ...

Page 14: ... 2 50 40 NL10 P280 ø22 2 1 ø25 4 ø9 5 1 ø12 7 P355 ø25 4 1 ø28 6 ø12 7 1 ø15 9 ATTENTION If the piping length exceeds 100 m install pipes larger by one rank specified in When total capacity of connected indoor unit exceeds 130 of rated capacity restrict the permissible piping length actual length to 100 m or less Refrigerant liquid pipe brazing Brazing connections Indoor unit Indoor unit Branch pi...

Page 15: ...P71 80 90 112 140 P224 P280 Vapor line mm Ø 12 7 Ø 15 9 Ø 19 1 Ø 22 2 Liquid line mm Ø 6 4 Ø 9 5 Make sure that total extension refrigerant piping lenght is 520 m or less If the refrigerant piping equivalent length exceeds 100 m use pipes with diameters larger by one rank indicated in 4 3 Refrigerant piping installation specifications on the previous page for the main liquid and vapor piping Examp...

Page 16: ...fference between indoor units h 15 m or less Branch piping How to select the branch piping kit When total capacity of connected indoor unit exceeds 130 of rated capacity restrict the permissible piping length actual length to 100 m CAUTION In the case of header branching or line header combined branching indoor units with capacity of P280 or larger cannot be connected after the header branching c ...

Page 17: ...it 40 m or less Height difference between indoor units h 15 m or less Branch piping How to select the branch piping kit When total capacity of connected indoor unit exceeds 130 of rated capacity restrict the permissible piping length actual length to 100 m Important remider Be sure to use the indoor unit piping and indoor branch piping that correspond to the indoor unit connecting piping size Alwa...

Page 18: ...th to 100 m Important remider Be sure to use the indoor unit piping and indoor branch piping that correspond to the indoor unit connecting piping size Always install the branch piping joint both for vapor and liquid so that the joint branches either horizontally or vertically Refer to the following table to select the branch piping kit because the size of branching pipe varies depending on the tot...

Page 19: ... or less Permissible height difference Height difference between AWS unit and outdoor unit H When outdoor unit is higher than indoor unit 50 m or less When outdoor unit is lower than indoor unit 40 m or less ATTENTION Never exceed the maximum allowed distance between AWS and GHP Failure in doing so can result in malfunctioning of the units and invalidates the warranty WARNING Always refer to AWS i...

Page 20: ...kg L1 0 353 L2 0 250 L3 0 170 L4 0 110 L5 0 054 L6 x 0 022 Qde Type or indoor system Qde kg Qaws kg Direct expansion single unit 0 0 Direct expansion multiple indoor unit 1 0 Direct expansion air handling unit AHU Refer to manufacturer specification Air water system YOSHI AWS E1 0 0 2 Refrigerant charging method Always charge the refrigerant as a liquid in the tank Charging as a vapor may cause a ...

Page 21: ...quid lines REMIND When connecting the branch pipe do not bend the main pipe near the connection If such bending is unavoidable provide a minimum of 150 mm of straight portion However do not use a bent pipe with an external diameter of Ø 28 6 or larger Orizzontale Vapor line Liquid line Do not perform another braching after header branching When performing header branching connect the crimpt pipe l...

Page 22: ...aust gas could cause gas poisoning or an accident due to lack of oxygen Install the outdoor unit where adequate ventilation is provided Be sure to discharge the exhaust gas to the atmosphere where the gas causes no adverse effect to the surroundings If the exhaust gas is exhausted into the catch basin or ditch it could be drawn into the room and cause gas poisoning or an accident due to lack of ox...

Page 23: ...ivalent length 1m The extended pipe shall be anchored to the building or similar structure with fixing brackets every 1 5 to 2 m The exhaust pipe shall not be gathered or connected with the other exhaust pipe 2 Attach the exhaust top at th outlet of the extended exhaust pipe paying attention to the following The angle of the exhaust vent plane shall be vertical to the ground by adjusting the elbow...

Page 24: ...ed electrical shock could occur Provide an over current breaker with the specified capacity for each outdoor unit If the proper over current breaker is not installed overheating fire or secondary damage due to the breaker tripping could occur Always use the designated cable for wiring Make sure that the cable is properly connected and fixed so that the outside forces may not be transferred to the ...

Page 25: ...25 1 12 2 Wiring example AC 230 V single phase ...

Page 26: ...26 1 13 Power supply wiring procedure 1 13 1 Wiring instruction ...

Page 27: ... and Ⓒ which satisfiea the longest wiring length limit of 1000 m and total length which is the total 900 m between Ⓐ and Ⓒ and 200 m between Ⓑ and Ⓓ is 1100 m this also satisfies the total wiring limit of 2000 m the system functions properly only when both the longest wiring length and the total wiring length are within the limit as shown above CAUTION Be sure to check the longest wiring length an...

Page 28: ...up to 10 branches re branching after the branch is not possible STAR WIRING up to 10 branches re branching after the branch is not possible Note Although the above figures show the examples using the centralized controller the same wiring system can be used with other centralized control devices ...

Page 29: ...f the indoor and outdoor units is performed automatically When the centralised remote control is added set the group address to the indoor units with the standard remote controller If the remote controller is not installed provide that the service centre brings a spare one to set the group address on each unit ...

Page 30: ...30 2 Outdoor unit mod 16 20 25 HP 16 HP AWGP450E1 N P NATURAL GAS LPG 20 HP AWGP560E1 N P NATURAL GAS LPG 25 HP AWGP710E1 N P NATURAL GAS LPG ...

Page 31: ...its Variable speed propeller type x 2 Rated total flow rate m 3 h 20 760 23 280 Static pressure standard silent mode Pa 5 30 Noise level Sound pressure standard silent mode dB A 56 54 59 57 62 60 Piping Refrigerant Gas line mm Ø 28 6 Ø 15 9 Ø 28 6 Ø 15 9 Ø 31 8 Ø 15 9 Liquid line Fuel gas inch R 3 4 Exhaust gas mm Ø 100 Exhaust drain standard cold district Ø 15 Ø 30 Piping permissible length actua...

Page 32: ...32 2 2 External dimensions ...

Page 33: ...tura aria interna C Campo di applicazione in riscaldamento Kit zone fredde 20 10 0 10 20 10 20 30 All measurements are expressed as dry bulb Note Scale temperature setting on the remote control Limite superiore Limite inferiore Cooling 35 C 20 C Heating 30 C 15 C Indoor temperature C Indoor temperature C Outdoor temperature C Outdoor temperature C Allowed cooling mode temperature range Allowed hea...

Page 34: ...34 2 4 Noise level charateristics Global values dB A m Model Front Rear Right Left AWGP450E1 N P 56 58 55 56 Detection status Semi anechoic room Distance 1 m Height 1 m ...

Page 35: ...35 Noise level charateristics Global values dB A m Model Front Rear Right Left AWGP560E1 N P 59 60 56 59 Detection status Semi anechoic room Distance 1 m Height 1 m ...

Page 36: ...36 Noise level charateristics Global values dB A m Model Front Rear Right Left AWGP710E1 N P 62 63 59 62 Detection status Semi anechoic room Distance 1 m Height 1 m ...

Page 37: ...l the outdoor unit in the proper distance from flammable item sas required by the relevant local and national regulations and technical standards see the reference below If the distance does not meet the requirements it could be result in fire WARNING DISTANCE FROM FLAMMABLE MATERIALS MM FRONT FRONT ...

Page 38: ...nt and fuel gas piping The following drawings show the minimum installation space for providing room for intake air and inspection and maintenance operations Insufficient space could result in injury to the maintenance personnel or damage to the equipment CAUTION FRONT FRONT MULTIPLE UNIT INSTALLATION FRONT ...

Page 39: ... the outdoor unit capacity Permissible piping length is restricted up to 100 m actual length and total piping length is restricted up to 350 m when the total capacityof the connected outdoor unit exceeds 130 of rated capacity Connectable indoor units are P22 to P280 shows the maximum value for cold district specification 2 6 1 Stand alone installation Outdoor unit Number of connectable indoor unit...

Page 40: ...40 2 7 Outline diagram of refrigerant piping 2 7 1 Combined installation ...

Page 41: ...41 2 7 2 Stand alone installation ...

Page 42: ...onnected indoor units exceeds 130 of rated capacity restrict the permissible piping length actual length to 100 m or less 2 8 2 Stand alone installation Outdoor unit Item Refrigerant piping diameter mm Permissible piping length m Equivalent length Actual length Permissible height difference m Refrigerant oil Vapor line Liquid line Outdoor unit is higer Outdoor unit is lower Multi type P450 16HP ø ...

Page 43: ...quid line C Reducer D I 15 7 D E 12 7 Provided with the outdoor unit Copper pipe ø 15 9 Localy procured Connection kit Branches couple Optional Note means this part is used for the above mentionedoutdoor unit Precautions for combined installation Arrange the refrigerant piping for both liquid and vapor between the outdoor units so that the piping is level or has upward gradient to prevent the refr...

Page 44: ...accumulate in the piping Be sure to install the Combinetion Multi connection kit horizontally for both vapor and liquid line Assicurarsi di installare il kit combination multi in posizione orizzontale per entrambe le tubazioni del liquido e del gas In case of difference between the GHP refer to the figures below for the correct positioning of the pipes ...

Page 45: ...ing of the Combination Multi connection kit When the piping length from the Combination Multi connection kit to the outdoor uniti s 2 m or more make a rising of 200 mm or more on vapor piping only at location 2 m or less the Combination Multi connction kit ...

Page 46: ...apacity of outdoor units kW 90 0 142 0 Vapor line mm Ø 31 8 Liquid line mm Ø 19 1 Ø 22 2 3 Piping between branches segments B C D E Total capacity indoor units Up to 22 4kW from 22 4kW to 33 0kW from 33 0kW to 47 0kW from 47 0kW to 71 0kW from 71 0kW to 104kW over 104kW Vapor line mm Ø 15 9 Ø 22 2 Ø 28 6 Ø 31 8 Ø 38 1 Liquid line mm Ø 9 5 Ø 12 7 Ø 15 9 Ø 19 1 4 Piping between branch and indoor uni...

Page 47: ...Selecting branch piping and permissible piping length Line branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 48: ...48 Header branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 49: ...49 Line header combined branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 50: ...W from 33 0kW to 47 0kW from 47 0kW to 71 0kW from 71 0kW to 104kW over 104kW Vapor line mm Ø 15 9 Ø 22 2 Ø 28 6 Ø 31 8 Ø 38 1 Liquid line mm Ø 9 5 Ø 12 7 Ø 15 9 Ø 19 1 3 Piping between branch and indoor unit segments a b c d e f Indoor unit P22 28 36 45 56 P71 80 90 112 140 160 P224 P280 Vapor line mm Ø 12 7 Ø 15 9 Ø 19 1 Ø 22 2 Liquid line mm Ø 6 4 Ø 9 5 4 Piping between outdoor unit and A H U a...

Page 51: ...Selecting branch piping and permissible piping length Line branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 52: ...52 Header branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 53: ...53 Line header combined branching When total capacity of connected indoor unit exceed 130 of rated capacity restrict the permissible piping length actual length to 100 m ...

Page 54: ...manual for maintenance clearance and position of the unit Always connect AWS to the designed outdoor unit for AWS Never exceed the maximum allowed distance between AWS and GHP Failure in doing so can result in malfunctioning of the units and invalidates the warranty ...

Page 55: ...to direct expansion indoor units Quantità in kg L1 0 353 L2 0 250 L3 0 170 L4 0 110 L5 0 054 L6 x 0 022 Qde Where Qde depends on the number of connected indoor units or the size of the AHU according to the table below Type of indoor units Qde kg Qaws kg Direct expansion single inddor unit 5 5 Direct expansion multiple indoor unit 6 5 Direct expansion air handling unit AHU Riferirsi alle specifiche...

Page 56: ...uid lines CAUTION when connecting the branch pipe do not bend the main pipe near the connection If such bending is unavoidable provide a minimum fo 150 mm Of straight portion However do not use a bent pipe with external diameter of ø 28 6 or larger Do not perform another branching after the header branching When performing header branching connect the crimp pipe max 100 mm from the port in accorda...

Page 57: ...rea open to the atmoshere Accumulated exhaust gas could cause gas poisoning or an accident due lack of oxygen Install the outdoor unit where adequate ventilation is provided Be sure to discharge the exhaust gas to the atmosphere where the gas causes no adverse effect to the surroundings If the exhaust gas is exhausted into the catch basin or ditch it could be drawn into the room and cause gas pois...

Page 58: ...valent bends length 1 m each Tilt horizontal section 3 inclination towards the drain Distance between the supports 1 5 2 m Attach the exhaust top at the outlet of the extended exhaust pipe paying attention to The angle of the exhaust vent plane shall be vertical to the ground by adjusting the elbow pipes so that rainwater may not enter the exhaust pipe directly Apply silicone caulking material at ...

Page 59: ...59 2 13 Power supply wiring procedure 2 13 1 Wiring instruction combined installation ...

Page 60: ...60 2 13 2 Wiring instruction stand alone installation ...

Page 61: ...tivity amperage is 30 mA If the electrical leakage breaker is not installed electrical shock could occur Provide an over current breaker with the specified capacity for each outdoor unit If the proper over current breaker is not installed overheating fire or secondary damage due to the breaker tripping could occur Always use the designed cable for wiring Make sure that the cable is properly connec...

Page 62: ...62 2 14 2 Wiring example AC 230V single phase ...

Page 63: ...ng AC 230V single phase 2 14 4 Air water system wiring AC 230V single phase The type of power is always indicated on the nameplate Always check what kind of power is needed for the proper functioning of the AISIN GHP Never feed with three phase current ...

Page 64: ... the longest wiring length limit of 1 000 m And the total length which is the total of 900 m between Ⓐ and Ⓒ and 2 000 m between Ⓑand Ⓓis 1 100 m This also satisfies the total wiring limit of 2 000 m The system functions properly only when both the longest wiring length and the total wiring length are within the limit as shown above CAUTION Be sure to check the longest wiring length and the total ...

Page 65: ...wiring The following 3 wiring methods are acceptable SERIES WIRING BUS WIRING up to 10 branches re branching after the branchi s not possible STAR WIRING up to 10 branches re branching after the branchi s not possible ...

Page 66: ...tdoor and indoor units is performed automatically When the centralised remote controller is added set the group address to the indoor units with the standard remote controller If the standard remote controller is not installed provide that the service center brings a spare one to set the group address on each one unit ...

Page 67: ... technical personnel The installation must be performed in accordance with the contents of this manual If this unit is not properly installed it will not realize its full performance potential and could cause injury or damage This manual contains technical prescriptions precautions and procedures to install the YOSHI AWS unit properly It addresses to specialised technical personnel with a basic kn...

Page 68: ...uffer Tank 14 8 1 1 Control panel 14 8 1 2 Probe temperature buffer tank 14 8 2 External probe temperature 14 9 Control panel 15 10 AWS Set Point Adjustment 16 10 1 Control panel 16 10 2 Setting the offset 17 11 Installation layouts 18 11 1 Central storage tank installation 18 11 2 Hydraulic separator installation 18 11 3 Single pump installation 18 11 4 HVAC installation layout AWS E1 19 11 5 HVA...

Page 69: ... capacity is measured according to the following conditions water outlet temperature 7 C outdoor temperature 35 C DB Rated heating capacity is measured according to the following conditions water outlet temperature 47 C outdoor temperature 7 C DB 6 C WB A version fitted with 230V single phase 60 Hz is available upon order If the distance between GHP and AWS exceeds 40 meters install a pipe with th...

Page 70: ...S unit power supply ground wiring communication and accessories wiring proper size and wire specifications are described in the GHP outdoor unit installation manual R410a refrigerant gas precision scale and gauge manifolds Refrigerant circuit extra charge refrigerant extra charge is described in the present manual Oxy acetylene welding kit Gas bottles nozzle and copper bars to weld refrigerant pip...

Page 71: ...a proper installation location Make sure maintenance space is provided around the unit If the unit is installed at high location provide a safe access by installing ladders or railings for the operator Always install the AWS unit in an area where its smooth operating noise and small vibration won t be a disturb for the neighbours particularly in residential areas Comply to local standards where pr...

Page 72: ...installed with aminimum distanceof 50cm from the AWS intakeconnection Refrigerant gas connections mm 8 10 13 HP 16 20 25 HP Liquid Gas Liquid Gas 12 7 28 6 18 0 28 6 Refrigerant pipes diameter mm 8HP 10 HP 13 HP 16 HP 20 HP 25 HP Liq Gas Liq Gas Liq Gas Liq Gas Liq Gas Liq Gas 9 5 19 1 9 5 22 2 12 7 25 4 15 9 28 6 15 9 28 6 15 9 35 0 Hydraulic and refrigerant gas connection positions Liquid 16 20 ...

Page 73: ...n the units are overlapped route the pipes of the upper unit so that all the body panels of the lower unit can be disassembled Multiple units installation Always leave at least 500 mm on the right side viewed from coupling tubes AWS CAUTION The minimum installation spaces are necessary to provide room for air circulation inspection and maintenance of the AWS unit Failure to observe this prescripti...

Page 74: ...ping must be always performed in accordance with instructions and prescriptions mentioned in the AISIN GHP installation manual brazing with nitrogen flow Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and or damage to the YOSHI AWS unit 5 Refrigerant pipes ...

Page 75: ...OSHI AWS unit must be designed and installed in accordance with the prescriptions here under listed Layout example in case of AWS connection If there is a height difference between the locations of indoor and outdoor units be sure to apply trap piping on the vapour line within every 10 m as illustrated 10 m A L Outdoor unit f AWS H Piping length Maximum piping length L Relative Actual L A 70 60m o...

Page 76: ...ing to the type of refrigerant used In particular never use the gauge manifold and charging hose with other refrigerants than R410a After confirming the factory charge on the AISIN GHP label use the following equation to determine the necessary extra amount of refrigerant gas Always refer to the liquid pipe lengths and diameters only Extra chrg kg L0 x 0 250 L1 0 170 L2 0 110 L3 0 054 QAWS The val...

Page 77: ... damaged 5 5 Heating mode The refrigerant R410A processed by the GHP enters the upper part of the AWS unit heat exchanger as high pressure overheated steam The gas condenses in the plate heat exchanger by ceasing heat to the co current water flow It goes back to the GHP as high pressure liquid through the bypass pipe The two outdoor unit expansion valves divide the return flow reducing its pressur...

Page 78: ...in malfunction and or damage to the YOSHI AWS unit All electrical installation work must be performed by specialised technical personnel in accordance with the local and national installation standards A declaration of conformity must be provided by the installer Failure to observe this prescription could result in electrical shock fire or other hazards Switch off the main circuit breaker or power...

Page 79: ...AKAGE BREAKER 16A not supplied AWS POWER WIRE 2 X 2 5 mm min section GHP TERMINAL BLOCK It is located in the rear side of the GHP AWS TERMINAL BLOCK It is located in the AWS electric box GROUNDING L N Power supply CHECK General alarm dry contact CONTACT H C Heat Cool selection signal F1 F2 GHP AISIN AWS YOSHI communication P Kit WKIT pump switch optional Q1 Q2 Outdoor units communication Installat...

Page 80: ... modify the operating parameters of the module for details regarding the management of the module with the remote control panel refer to the AWS service manual 8 1 2 Probe temperature buffer tank The probe is used to stop the pump when the AWS reaches the set point temperature It must be installed on the tank and connected to the AWS as shown in the drawing 8 2 External probe temperature The probe...

Page 81: ...longer valid In case of multiple units installations it is possible to manage a proportional distribution of the capacity by an external optional device The built in water thermostat always indicates the return temperature of the primary circuit NEVER SET THE VALUE BELOW 8 C The YOSHI AWS control panel is represented below In case of AISIN GHP outdoor unit malfunction the error code will be displa...

Page 82: ...ow the set point the AWS stops If the optional Plus Controller has been installed once the set point has been reached and the AWS stops the primary circulation pump halts Otherwise the primary circulation pump continues to run nevertheless the AWS system is in stand by Example of modulation in heating The set point temperature in heating ie the parameter Tset heat may vary in a range between 30 C ...

Page 83: ...nt 100 6 5 11 5 75 9 75 50 8 5 25 7 25 Numerical example on the maximum temperature set point 100 15 7 22 14 75 20 25 50 18 5 25 16 75 10 2 Setting the offset The unit YOSHI AWS allows you to adjust the offset of the set point temperature that is the return water temperature on the primary circuit The parameters Tset Offset can be changed in the user menu please refer to the AWS service manual If ...

Page 84: ...the primary and the secondary circuits are balanced Moreover the storage tank must be provided with anti stratification pipes 11 2 Hydraulic separator installation When choosing this layout make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the primary circuit In this case it is possible to install horizontal storage tanks ...

Page 85: ...19 11 4 HVAC installation layout AWS E1 ...

Page 86: ...20 11 5 HVAC installation E1 with proportional distribution of consumption ...

Page 87: ...21 11 6 HVAC installation AWS E1J variable flow rate no hydraulic separator AHU ...

Page 88: ...22 11 7 HVAC installation AWS E1J variable flow rate with hydraulic separator fan coil ...

Page 89: ...layed on the GHP Press UP for the current alarms and DOWN for those in STAN BY Flowswitch tamper alarm A4S1 Check the wiring of the flowswitch Check the operation of the flowswitch Check the layout of plant other pumps make circulate water when not expected Antifreeze alarm A5S1 Check the operation of the pump the flow switch and pressure differential switch Verify that the offset values in summer...

Page 90: ...water temperature inside the AWS dropped below the minimum threshold Check water circulation and make sure the unit is not exposed to severe outdoor conditions GHP starting failure A18S1 Check T1T2 setting Check wiring 15 16 Check C7 NO7 relay ...

Page 91: ...erature sensor failure AWS version Resistors group failure Improper harness connection CA X X X 98 n Exhaust air temperature sensor failure Improper harness connection CJ ON OFF X 17 n R C temperature sensor R C temperature sensor failure Improper harness connection U3 X X X Test run Test run operation U4 X X X Communication Outdoor unit power supply OFF Outdoor unit indoor unit transmission error...

Page 92: ...cumulator outlet temp sensor disconnected X X X 55 2 3 Accumulator outlet temp sensor short circuit J5 X X X 53 0 1 Compressor intake temp sensor disconnected X X X 53 2 3 Compressor intake temp sensor short circuit J6 X X X 65 0 Heat exchanger liquid pipe temp sensor disconnected Improper harness connection X X X 65 2 Heat exchanger liquid pipe temp sensor short circuit J7 X X X 66 0 Sub heat exc...

Page 93: ...27 NOTE ...

Page 94: ...28 ...

Page 95: ...29 ...

Page 96: ......

Page 97: ... to be installed by specialised technical personnel The installation must be performed in accordance with the contents of this manual If this unit is not properly installed it will not realize its full performance potential and could cause injury or damage This manual contains technical prescriptions precautions and procedures to installa the YOSHI AWS unit properly It addresses to specialised tec...

Page 98: ...k 14 8 1 1 Control panel 14 8 1 2 Probe temperature buffer tank 14 8 2 External probe temperature 14 9 Control panel 15 10 1 Control panel 16 10 AWS Set Point Adjustment 16 10 1 17 10 2 Setting the offset 17 11 Installation layouts 18 11 1 Central storage tank installation 18 11 2 Hydraulic separator installation 18 11 3 Single pump installation 18 11 4 HVAC installation AWS E1J TWIN 19 11 5 HVAC ...

Page 99: ...oling capacity is measured according to the following conditions water outlet temperature 7 C outdoor temperature 35 C DB Rated heating capacity is measured according to the following conditions water outlet temperature 47 C outdoor temperature 7 C DB 6 C WB If the distance between GHP and AWS exceeds 40 meters install a pipe with the diameter indicated in brackets 1 1 Installation prescriptions C...

Page 100: ...ng communication and accessories wiring proper size and wire specifications are described in the GHP outdoor unit installation manual R410a refrigerant gas precision scale and gauge manifolds Refrigerant circuit extra charge refrigerant extra charge is described in the present manual Oxy acetylene welding kit Gas bottles nozzle and copper bars to weld refrigerant pipes Nitrogen Bottle Refrigerant ...

Page 101: ...a proper installation location Make sure maintenance space is provided around the unit If the unit is installed at high location provide a safe access by installing ladders or railings for the operator Always install the AWS unit in an area where its smooth operating noise and small vibration won t be a disturb for the neighbours particularly in residential areas Comply to local standards where pr...

Page 102: ...pto40m mm 16 16 HP 16 20 HP 20 20 HP 16 25 HP 20 25 HP 25 25 HP Liq 1 Gas1 Liq 1 Gas1 Liq 1 Gas1 Liq 1 Gas1 Liq 1 Gas1 Liq 1 Gas1 15 88 28 6 15 88 28 6 15 88 28 6 15 88 28 6 15 88 28 6 15 88 35 0 Liq 2 Gas2 Liq 2 Gas2 Liq 2 Gas2 Liq 2 Gas2 Liq 2 Gas2 Liq 2 Gas2 15 88 28 6 15 88 28 6 15 88 28 6 15 88 35 0 15 88 35 0 15 88 35 0 GHP AWS Refrigerant pies diameter distanceover40m mm 16 16 HP 16 20 HP 2...

Page 103: ...G2 L1 L2 G1 Water Out When the units are overlapped route the pipes of the upper unit so that all the body panels of the lower unit can be disassembled Multiple units installation Always leave at least 500 mm on the right side viewed from coupling tubes AWS CAUTION The minimum installation spaces are necessary to provide room for air circulation inspection and maintenance of the AWS unit Failure t...

Page 104: ...ping must be always performed in accordance with instructions and prescriptions mentioned in the AISIN GHP installation manual brazing with nitrogen flow Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and or damage to the YOSHI AWS unit 5 Refrigerant piping ...

Page 105: ...accordance with the prescriptions here under listed Layout example in case of AWS connection If there is a height difference between the locations of indoor and outdoor units be sure to apply trap piping on the vapour line within every 10 m as illustrated 10 m A L Outdoor unit f AWS H Piping length Maximum piping length L Relative Actual L A 70 60m or less Height difference Height difference betwe...

Page 106: ...arging cylinder may cause a compositional change of the refrigerant could result in a performance decline or a breakdown To avoid cross contamination with other oil types make sure to separate maintenance tools according to the type of refrigerant used In particular never use the gauge manifold and charging hose with other refrigerants than R410a After confirming the factory charge on the AISIN GH...

Page 107: ...he upper part of the AWS unit heat exchanger as high pressure overheated steam The gas condenses in the plate heat exchanger by ceasing heat to the co current water flow It goes back to the GHP as high pressure liquid through the bypass pipe The two outdoor unit expansion valves divide the return flow reducing its pressure The GHP manages the evaporation through the heat exchanger and the heat rec...

Page 108: ...result in malfunction and or damage to the YOSHI AWS unit All electrical installation work must be performed by specialised technical personnel in accordance with the local and national installation standards A declaration of conformity must be provided by the installer Failure to observe this prescription could result in electrical shock fire or other hazards Switch off the main circuit breaker o...

Page 109: ...13 7 2 Detailed wiring diagram ...

Page 110: ... AWS service manual 8 1 2 Probe temperature buffer tank The probe is used to stop the pump when the AWS reaches the set point temperature It must be installed on the tank and connected to the AWS as shown in the drawing 8 2 External probe temperature The probe allows adjustment of the flow temperature of the water according to the temperature of the outside air by means of a 4 20 mA current signal...

Page 111: ... malfunction and or damage to the unit NEVER disconnect or bypass the YOSHI AWS built in safety devices for a forced operation of the unit Failure to observe this prescription makes the warranty no longer valid and could result in malfunction and or damage to the unit NEVER change the factory settings of the AISIN remote controller fitted in the control panel Failure to observe this prescription c...

Page 112: ... during these controls the temperature never goes below the set point the AWS stops If the optional Plus Controller has been installed once the set point has been reached and the AWS stops the primary circulation pump halts Otherwise the primary circulation pump continues to run nevertheless the AWS system is in stand by Example of modulation in heating The set point temperature in heating ie the ...

Page 113: ... YOHSI AWS TWIN unit proper operation foresees the following capacity modulation method of the two GHP units Two GHP units at 100 of their load Two GHP units at 75 of their load Two GHP units at 50 of their load One GHP unit at 50 of its load One GHP unit at 25 of its load 10 2 Setting the offset The unit YOSHI AWS allows you to adjust the offset of the set point temperature that is the return wat...

Page 114: ...the primary and the secondary circuits are balanced Moreover the storage tank must be provided with anti stratification pipes 11 2 Hydraulic separator installation When choosing this layout make sure that the static pressure of the water pump fitted in the YOSHI AWS unit is enough to win the total pressure drop of the primary circuit In this case it is possible to install horizontal storage tanks ...

Page 115: ...19 11 4 HVAC installation AWS E1J TWIN ...

Page 116: ...20 11 5 HVAC installation E1J TWIN proportional distribution of consumption ...

Page 117: ...21 11 6 HVAC installation AWS E1J TWIN variable flow rate no hydraulic separator AHU ...

Page 118: ...22 11 7 HVAC installation AWS E1J TWIN variable flow rate with hydraulic separator fan coil ...

Page 119: ...ressure differential switch compare the state with the flow switch GHP1 Alarm A3S1 Check the code displayed on the GHP Press UP for the current alarms and DOWN for those in STAN BY Flowswitch tamper alarm A4S1 Check the wiring of the flowswitch Check the operation of the flowswitch Check the layout of plant other pumps make circulate water when not expected Antifreeze alarm A5S1 Check the operatio...

Page 120: ...15S1 Check the code displayed on the GHP Press UP for the current alarms and DOWN for those in STAN BY Return temperature probe alarm 2 A16S1 Check the probe and the wiring Antifreeze temperature probe alarm 2 A17S1 Check the probe and the wiring GHP 1 starting failure A18S1 Check T1T2 setting Check wiring 15 1 16 1 Check C1NO1 relay GHP 2 starting failure A19S1 Check T1T2 setting Check wiring 15 ...

Page 121: ...erature sensor failure AWS version Resistors group failure Improper harness connection CA X X X 98 n Exhaust air temperature sensor failure Improper harness connection CJ ON OFF X 17 n R C temperature sensor R C temperature sensor failure Improper harness connection U3 X X X Test run Test run operation U4 X X X Communication Outdoor unit power supply OFF Outdoor unit indoor unit transmission error...

Page 122: ...cumulator outlet temp sensor disconnected X X X 55 2 3 Accumulator outlet temp sensor short circuit J5 X X X 53 0 1 Compressor intake temp sensor disconnected X X X 53 2 3 Compressor intake temp sensor short circuit J6 X X X 65 0 Heat exchanger liquid pipe temp sensor disconnected Improper harness connection X X X 65 2 Heat exchanger liquid pipe temp sensor short circuit J7 X X X 66 0 Sub heat exc...

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