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York YHAU-CE Installation Operation & Maintenance Download Page 91

JOHNSON CONTROLS

91

SECTION 7 – MAINTENANCE

FORM 155.35-ICOM2.EN.CE/GB (1018) 

DATE: 10/30/2018

7

SP

1

R

P

AB

S

EV

A

LG

-D

C

T

LX

HX

SP

2

XG

LG

  (

7

º C

)

(3

7

º C

)

(3

2

º C

)

LD22963

Chilled 

Wa

ter 

Outlet

 

HG -> CLOSE   

 

Cooling 

Wa

ter 

Outlet

Cooling 

Wa

ter Inlet

Chilled 

Wa

ter 

Inlet (1

2

º C)

 

E -> 

A 

Ref 

CLOS

E

Air Purge  Blower   

 

Air Purge  Damper  

 

Outlet

 

Damper  

 

Exhaust Gas  Outlet

 

(120-160

º C)

 

Bypass  Damper

 

Inlet

 

Damper  

 

Exhaust Gas  Inlet

 

(300-600

º C)

 

C

hi

lle

d 

W

at

er

C

oo

lin

g 

W

at

er

R

ef

rig

er

an

t

D

ilu

te

d 

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ol

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ig

h 

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FIGURE 35 - 

PURGE SYSTEM

Summary of Contents for YHAU-CE

Page 1: ...EFFECT EXHAUST GAS ABSORPTION CHILLER HEATER INSTALLATION OPERATION MAINTENANCE NEW RELEASE Form 155 35 ICOM2 EN CE GB 1018 Issue Date October 30 2018 MODEL YHAU CE 150 1440 TONS 527 5064 KW 50 HZ LDx...

Page 2: ...labels this document and any referenced materials This in dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task...

Page 3: ...be obtained by contacting the nearest Johnson Controls Service office or accessing the John son Controls QuickLIT website at http cgproducts johnsoncontrols com It is the responsibility of rigging li...

Page 4: ...05 Images contained in this document may represent the standard product with available options YHAU C E 500 EX S NOMINAL CAPACITY RT Unit Type York Absorption LD26804 LOW TEMP CHW L 1 0 C CHW LL 5 0 C...

Page 5: ...e Heat Exchangers 18 Parallel Flow 19 High Temperature Generator HTG 19 Low Temperature Generator 20 Condenser 20 Crystallization 21 Why Does Crystallization Occur 21 SECTION 3 HANDLING STORAGE INSTAL...

Page 6: ...or Use 55 Before Operation 55 Precautions For The Use Of Water 56 Chilled Hot Water Outlet Temperature Controller 56 Liquid Level Gauges 56 Start the Chiller Heater 57 Stop the Chiller Heater 57 Inter...

Page 7: ...on 98 Blower Fan Manual Stop 99 Exhaust Gas Contaminants 99 Exhaust Gas Chimney Requirements 99 Lifespan of Common Parts 100 Water Quality Control 102 Chemical Water Treatment 103 Replacement of Water...

Page 8: ...e N 1 Connection with User Created Cable 52 FIGURE 20 Sample Sound Testing 53 FIGURE 21 Cooling Start Diagram 58 FIGURE 22 Cooling Start Diagram 59 FIGURE 23 Cooling Stop Diagram 60 FIGURE 24 Sequenti...

Page 9: ...Purge Valve Operation 90 TABLE 20 Maintenance and Inspection 95 TABLE 21 Exhaust Gas Contaminants 99 TABLE 22 Lifespan of Common Parts 100 TABLE 23 Tendency of Generation of Scales and Corrosion by Qu...

Page 10: ...JOHNSON CONTROLS 10 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 11: ...ailure to follow the procedures and instructions detailed in this manual WARRANTY Johnson Controls warrants YHAU CE chiller heaters in accordance with the Limited Warranty Engineered Systems Equipment...

Page 12: ...8431 2014 For CE EN ISO 12100 2010 EN 60204 1 2006 A1 2009 EMC Directive 201 4 30 EC EN 55011 2009 A1 2010 Group 1 Class A EN 61000 6 2 2005 The unit must be grounded No installation or main tenance w...

Page 13: ...ut prior warning Caution Hot surface Warning Safety relief valve may dis charge gas or liquid without prior warning Warning Risk of electric shock General attention symbol Warning On isolating the sup...

Page 14: ...JOHNSON CONTROLS 14 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 15: ...denser generators solution heat exchangers to heighten the cycle efficiency pumps to circulate the refrigerant and solution in the cycle a purge unit to remove non condensable gas from the machine CON...

Page 16: ...ly related to the amount of refrigerant water present in the solu tion with the LiBr salt and the solution temperature The entire absorption process occurs in almost a com plete vacuum The evaporator...

Page 17: ...orator Upper Evaporator Lower Chilled Water Out Chilled Water In Dilute Solution Out Mist Eliminators ABSORBER The concentrated LiBr solution enters the absorber sec tion of the chiller heater There i...

Page 18: ...lled water design However the lower evaporator is the first step of the chilled water cooling cycle The dilute solution s vapor pressure is enough to maintain the required temperature and pressure in...

Page 19: ...solution heat exchanger The other leads to the low temperature generator in parallel LD19880_2 Low Temp Heat Exchanger Concentrated Solution Out Dilute Solution Out Dilute Solution Out Concentration...

Page 20: ...con denses into liquid and flows to the condenser LD26807 Low Temp Generator CONDENSER The refrigerant vapor from the low temperature gener ator as well as the condensed refrigerant from the high tem...

Page 21: ...of the unit to prevent crystallization during the off cycle Remember the solution tempera ture will eventually become equal to the ambient tem perature of the room All units employ some sort of diluti...

Page 22: ...JOHNSON CONTROLS 22 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 2 PRODUCT DESCRIPTION THIS PAGE INTENTIONALLY LEFT BLANK...

Page 23: ...It is beyond the scope of this manual to specify rigging and lifting details This chiller heater is for air conditioning or cooling a manufacturing process Transport store and use this chiller heater...

Page 24: ...oling tower must be placed at least 5 meters apart Wherever possible the smoke stack should be positioned downwind of the cooling tower Each chiller heater MUST have its own chimney or exhaust gas duc...

Page 25: ...igger in accordance with a written rigging and lifting plan The most appropriate method will depend on job specific factors such as the rigging equipment available and site needs Therefore a professio...

Page 26: ...n 10 it is necessary to extract the solution and refrigerant beforehand 3G 3GINOTK KOMNZ VVXU VVXU VVXU 3G 3GINOTK OJZN 3G 3GINOTK 2KTMZN 9QOJ GYK Use care not to apply shock to the machine The ma chi...

Page 27: ...ri roller fit the tri roller set to each of the four holes shown in the figure below LD26810 Tir roller set Frame size of Tir roller shall be 270mm or larger Machine Leg Anchor bolt hole Tir roller se...

Page 28: ...sure to fit a jack in each of the jack up supports as shown in Figure 7 below LD26811 Jack up Support Jack up Support Machine Leg Jack up Support Jack Figure 6 JACK UP PROCEDURE Operate the front and...

Page 29: ...cludes the cold ambient op tion Outdoor installations will be considered on a case by case basis by a Johnson Controls Service Represen tative Proper instruction for installation will be pro vided at...

Page 30: ...ure relief valve The unit must never operate with this shut off valve closed Do not touch any part or component displaying a high tem perature caution label while the machine is opera ting This includ...

Page 31: ...ock may result USE OF GAS If the smell of gas is present do not operate the ma chine touch the control panel or press any buttons until the smell of gas is gone Inspect the exhaust duct periodically t...

Page 32: ...ate Rubber Pad Base Rubber Vibration Isolator Nut Washer Foundation Bolt Foundation Bolt Rubber Vibration Isolator Sole Plate Filling with motrar Nut Washer VIBRATION AND ISOLATION DETAILS Before inst...

Page 33: ...ater Inlet 2 Chilled Hot Water Outlet 3 Cooling Water Inlet 4 Cooling Water Outlet 5 Waste Exhaust Gas Inlet 6 Waste Exhaust Gas Outlet The chiller will be designed according to the different temperat...

Page 34: ...et 2 Chilled Hot Water Outlet 3 Cooling Water Inlet 4 Cooling Water Outlet 5 Exhaust Gas Inlet 6 Exhaust Gas Outlet 1 7 Exhaust Gas Outlet 2 Figure 9 NOZZLE LOCATIONS EXAMPLE TWO EXHAUST GAS OUTLET FL...

Page 35: ...n If you use insulation make sure it can be easily removed 8 For the high temperature generator install the in sulation so that the front sides and rear insula tion can be removed separately In additi...

Page 36: ...35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 3 HANDLING STORAGE INSTALLATION AND REASSEMBLY Cold Insulation LD22967 Hot Insulation Exhaust Gas Insulation Figure 10 HOT AND COLD INSULATION EXAMPLE O...

Page 37: ...HANDLING STORAGE INSTALLATION AND REASSEMBLY FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 3 LD22968 Exhaust Gas Insulation Cold Insulation Hot Insulation Figure 11 HOT AND COLD INSULATION EXAMPLE...

Page 38: ...JOHNSON CONTROLS 38 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 3 HANDLING STORAGE INSTALLATION AND REASSEMBLY LD22969 Figure 12 EXTERIOR OF CONTROL PANEL...

Page 39: ...s technical information about the unit such as weight dimensions electrical data wiring and sound data Table 3 TYPICAL OPERATIONAL RANGE PARAMETER ALLOWABLE RANGES Chilled Water In 7 25 C Chilled Wate...

Page 40: ...4 TECHNICAL DATA Weights and Dimensions The chiller heater will be designed according to the different temperature and flow of exhaust gas The weight and dimensions of maximum shipping operation and...

Page 41: ...ORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 4 Physical Data The chiller heater will be designed according to the different temperature and flow of exhaust gas The physical data will be documented a...

Page 42: ...1018 DATE 10 30 2018 SECTION 4 TECHNICAL DATA Electrical Data The chiller heater will be designed according to the different temperature and flow of exhaust gas The electrical data will be documented...

Page 43: ...JOHNSON CONTROLS 43 SECTION 4 TECHNICAL DATA FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 4 LD22918 Figure 13 EXTERNAL CONNECTION TERMINAL DETAILS FOR CE...

Page 44: ...JOHNSON CONTROLS 44 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 4 TECHNICAL DATA LD26812 Figure 14 EXTERNAL CONNECTION DETAILS FOR GB...

Page 45: ...e properly grounded Use an earth leakage breaker Connect an interlock if necessary a Operating interlock Chilled hot water pump start signal Exhaust gas full open interlock b Cooling water pump interl...

Page 46: ...AU CE Series of Exhaust Gas Absorption Chiller heaters LD20594f KTZXGR 3UTOZUXOTM TOZ GZG UTIKTZXGZUX 9IUVK UL JKRO KX_ H_ YZUSKX 9IUVK UL JKRO KX_ H_ 0UNTYUT UTZXURY HYUXVZOUT NORRKX KGZKX UTZXUR Upp...

Page 47: ...function code communication data address and other relevant information Connection Port for Ethernet Communication Make sure that the Ethernet cable is plugged into the correct port on the Control Pa...

Page 48: ...N 10 Load limit condition 0 or 1 01009 0 NORMAL OPERATION 1 LOAD LIMIT OPERATION 11 Control manipulated variable 100 00023 0100 1100 unit 1 unit 0 1 12 Failure signal 0 or 1 01011 0 NORMAL OPERATION 1...

Page 49: ...erformed by the customer to be sure that the communication systems work properly LD20597f Serial Interface COM2 Connect User Created Cable ITEM CUSTOMER JCI REMARKS Control panel with upper communicat...

Page 50: ...Data A 2 RDB Input Receive Data B 3 SDA Output Send Data A 4 ERA Output Data Terminal Ready A 5 SG Signal Ground 6 CSB Input Send Possible B 7 SDB Output Send Data B 8 CSA Input Send Possible A 9 ERB...

Page 51: ...E GB 1018 DATE 10 30 2018 4 LD21547 4 Wire Type Cable Diagrams Without Adaptor The following are sample cable diagrams for 4 wire type connections Figure 17 2 WIRE N 1 CONNECTION WITH USER CREATED CAB...

Page 52: ...See Table 8 on page 48 for information about the Read Command or Table 9 on page 49 for informa tion about the Write Command Table 12 COMMUNICATION SPECIFICATIONS Communication Protocol Modbus RTU Co...

Page 53: ...8 69 69 71 70 67 66 58 59 44 51 4 78 84 40 79 50 76 61 77 64 73 71 74 71 71 74 73 71 70 65 66 50 57 5 64 80 37 76 44 70 60 76 56 65 54 57 57 57 56 55 50 49 36 37 26 33 Position of Measuring Instrument...

Page 54: ...JOHNSON CONTROLS 54 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 4 TECHNICAL DATA THIS PAGE INTENTIONALLY LEFT BLANK...

Page 55: ...ischarge pressure The delivery pressure reflects the high vacuum condition of the machine If the inside pressure is atmospheric add 1 0 kg per cm 14 3 psig to the standards in table 9 Remove the compo...

Page 56: ...emporarily reduce the quantity of the chilled hot water and cooling water use the valves installed at the outlet line to make adjustments When the flow rate change of the chilled hot water is controll...

Page 57: ...ote start signal When the chiller heater starts the following occurs The solution circulation pump solution spray pump and refrigerant pump start The exhaust gas inlet valve and the exhaust outlet val...

Page 58: ...pump interlock ON Turn ON power source Initialize Self Check Mechanism Remote Local Mode selection Local operation ON Failure activate Engine Operated Chilled Hot Water Pump Interlock ON with failure...

Page 59: ...starts Temperature control with XG bypass damper starts XG outlet temp outlet temp set point Thermo OFF light ON XG input stop preparation starts No No Yes low XG Dilution status Dilution complete So...

Page 60: ...umps and Refrigerant pump stop CHW water pump and CW pump stop Remote stop command ON Remote Local No Yes No Failure alarm Failure without dilution The chiller stops without dilution due to the follow...

Page 61: ...eating operation these devices and equipment do not need to be used 5 If the chilled hot water and cooling water system is the common system it is required to install the isolation valve on the chille...

Page 62: ...JOHNSON CONTROLS 62 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 SECTION 4 TECHNICAL DATA THIS PAGE INTENTIONALLY LEFT BLANK...

Page 63: ...sword There are certain screens displayed values programmable set points and manual controls not shown that are used to service the chiller heater LD26791 COMMON ITEMS Buttons are listed in the order...

Page 64: ...ing you how to do the procedure starting at the Main screen Before you set the date and time be sure to STOP the chiller heater The control functions of the chiller heater will NOT work during this pr...

Page 65: ...ou com plete the password entry the Offline Mode screen displays 9 Tap the drop down arrow to the right of the entry in the OFFLINE LANGUAGE field 10 Select ENGLISH from the list that displays LD21988...

Page 66: ...anges are correct press the Save button LD22163 LD22163 17 The Save File screen appears 18 Press the Yes button to complete the process LD22164 LD22164 19 Press the Exit button to the right of the Sav...

Page 67: ...n the lower left corner of the screen are OPER and STOP Press the appropriate button to start or stop the chiller heater When you press the OPER button while the chiller heater is stopped or STOP whil...

Page 68: ...Operat indicates if the chilled hot water pump is operating or not Co W P Operat indicates if the cooling water pump is operating or not Engine Operat indicates if the engine or ex haust gas generatio...

Page 69: ...erant Temp temperature of the refrigerant in the evaporator Absorber Temp temperature of the diluted solution in the absorber HT HEX Solution Outlet Temp temperature of the concentrated solution measu...

Page 70: ...Operating total number of times the absorption machine started in cooling mode Solution Pump total number of times the solu tion circulation pump and the solution spray pump started Refrige Pump tota...

Page 71: ...e The buttons on the lower left side of the screen are used to move through the messages The Double Up Arrow button moves you to the top of the list The Single Up Arrow button moves you upward through...

Page 72: ...hot water inlet and outlet cooling water inlet and outlet engine waste gas inlet and outlet These graphs are updated constantly regardless of the operating status of the chiller heater The display ra...

Page 73: ...econd Trend screen shows you the trend of the temperature for the evaporator refrigerant temperature absorber temperature HG temperature HG pressure Press the Left Arrow button to return to the previo...

Page 74: ...ound This can be done before the failure is addressed Turning off the buzzer does NOT fix the problem Press the lit failure button to access an on screen han dling guide for each item An on screen gui...

Page 75: ...hot water flow stopped during solution pump operation Check the chilled hot water pumps Check the chilled hot water lines Check the chilled hot water flow rate Check the chilled hot water suspension...

Page 76: ...after it received the open signal Air Damper Close Failure The air damper close limit switch did not turn ON within 180 seconds after it received the close signal Inlet Damper Overcurrent The inlet d...

Page 77: ...stopped Contact your local Johnson Controls Service Center STOP the gas engine immediately A waste exhaust gas leak failure is very serious If the gas engine keeps running crystallization of the solut...

Page 78: ...rature rose too high and activated the motor overheat switch Contact your local Johnson Controls Service Center Solution spray pump abnormal The solution spray pump motor current exceeded the rated va...

Page 79: ...p in the Alarm section of the screen There is no buzzer Figure 32 ALARM SCREEN Press the lit alarm button to access an on screen han dling guide for each item An on screen guide is avail able for ever...

Page 80: ...See Performance Check Method of Vacuum Pump on page 87 Contact your local Johnson Controls Service Center HG High Pressure Prevention HG XG High Pressure Prevention Control The HG XG generator pressu...

Page 81: ...e absorber temperature sensor detected an abnormal value due to a disconnection short circuit or other loose connections The remote setting signal 4 20mA value was abnormal during the remote chilled h...

Page 82: ...e Change Numeric Values on page 64 for more information CONTROL PARAMETER The Control Parameter section of the Setting screen is used to enter parameters for the cooling and heating op eration such as...

Page 83: ...he Stop and Auto buttons control the refrigerant pump Blower Fan the Stop and Auto buttons control the blower fan Purge Mode the Auto and Manual buttons con trol how the purge operation is managed Man...

Page 84: ...JOHNSON CONTROLS 84 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 85: ...rom the re frigerant tank to the absorber The valve must not be tampered with or have its set tings changed Daily maintenance and inspection is the only reason to touch the valve During service and ma...

Page 86: ...blow valve V2 is closed 4 Check the vacuum level in the machine using the pressure gauge of the high temperature generator The vacuum level should be less than 0 1 MPaG 5 Check the waste exhaust gas...

Page 87: ...llast remove the plug If the purge unit is operated with the gas ballast closed water is left in the oil The oil will need to be replaced more frequently 4 Set the valves according to pattern A shown...

Page 88: ...urge tank line V18 F Purge valve for absorber line V17 G Purge valve for absorber line V14 H Purge valve for absorber line V15 Figure 34 LOCATION OF MANUAL VALVE IN PURGING SYSTEM EXAMPLE A Purge sole...

Page 89: ...en 5 After 1 2 minutes confirm that the vacuum gauge stands at 0 1 kPa 6 Reading the vacuum gauge open valve V17 grad ually Confirm that the pressure on the vacuum gauge increases slightly If the pres...

Page 90: ...VALVE OPERATION PURGING PATTERN USE OPERATION VALVE OPERATION AND LOCATION V18 V19 V20 V16 V17 A Check capacity of vacuum pump x B Direct purging from absorber Preparation x Starting purging x C Manu...

Page 91: ...tlet HG CLOSE Cooling Water Outlet Cooling Water Inlet Chilled Water Inlet 12 C E A Ref CLOSE Air Purge Blower Air Purge Damper Outlet Damper Exhaust Gas Outlet 120 160 C Bypass Damper Inlet Damper Ex...

Page 92: ...r TA TH2 TH1 TH3 VA VB V4 VK VJ SV3 SV2 VF V39 VG V9 V8 33RL TR TEO TEI 69 WC1 V21 Purge Tank VI Cond PI2 Gas Separator VL V1 EG TCO 69 WC2 Option VH V3 Exhaust Gas Outlet 120 160 Exhaust Gas Inlet 30...

Page 93: ...he current load condition Constantly check the liquid level in the refrigerant tank while the refrigerant is refined If the refrigerant liquid level appears in the level gauge of the refrigerant tank...

Page 94: ...pump is disconnected only the refrigerant pump starts 5 Remove the cap of the refrigerant manual blow down valve V2 For the location of the refrigerant manual blow valve see Table 18 Solenoid Valves...

Page 95: ...shown in the table below For details contact your local Johnson Controls Service Center Inspection frequency may be adjusted according to the actual operating conditions Table 20 MAINTENANCE AND INSP...

Page 96: ...es are available in most larger cities to supply a water treating process which will greatly reduce the corrosive and scale forming properties of almost any type of water Be sure to request the first...

Page 97: ...icks to the inside of the tubes of the chiller heater refrigerating performance goes down and the tubes become corroded Remove slime soft scales and other foreign matter from the inside of the tubes S...

Page 98: ...d failure to the chiller heater 6 Press the Purge Mode Auto button Operation Mode Selection You can select the operation mode of the chiller heater 1 Navigate to the Control Panel Setting screen 2 Pre...

Page 99: ...Nm31 Dust density 2 Nitrogen Oxide 600 ppm1 Chemiluminescence2 3 Sulfur Oxide 0 ppm Non dispersive Infrared gas analyzer2 4 Suspended particulate matter 0 5 mg per Nm3 Liquid sampling Filter with mem...

Page 100: ...ut 15 years Depends on the eddy current result at interval 24 000 36 000 hours Absorber Tube Condenser tube Low Temperature generator tube High temperature exhaust gas driven generator tube Float valv...

Page 101: ...0 hours Inverter option Fan for control panel Differential pressure switch Pressure sensor Pressure switch Resistance Temperature detector Thermocouple LD26803 Exhaust Gas AbsorptionChiller One Exhaus...

Page 102: ...the cooling water and chilled hot water piping Install an air vent valve at the highest part of the piping and a drain valve at the lowest part of the piping Keep the cooling water temperature higher...

Page 103: ...When stopping the chiller heater for more than 15 days drain the water from the absorber condenser and evaporator through the drain valve at the bottom of the waterbox CHEMICAL TREATMENT Corrosion inh...

Page 104: ...nd deposits ferric dioxide Fe2 O3 Iron bacteria grow Reddish brown Black Fe3 corrodes iron and copper tubes badly Reddish brown Black Environmental Factors Water smells bad Contains sulfuric acid hydr...

Page 105: ...Max 0 1 Residual Chlorine mg CI per I Max 0 3 Max 0 3 Max 0 3 Max 0 3 Max 0 3 Free Carbonate Acid mgCO2 per I Max 4 0 Max 4 0 Max 4 0 Max 4 0 Max 4 0 Stability Index 6 0 7 0 NOTES 1 The item names th...

Page 106: ...The wet storage method is available only where chilled hot water and cooling water will not freeze Each storage method has its own characteristics Select the method to use based on the plant s feature...

Page 107: ...ble or near a construction site If this is unavoid able provide the machine with protection If it is not possible to protect the machine fill the interior with N2 to minimize the amount of air leak ag...

Page 108: ...ual valve on the purge piping should be fully closed See Figure 34 on page 88 STORAGE METHOD OF THE COOLING WATER DURING HEATING OPERATION PERIOD Do NOT operate the cooling water pump during opera tio...

Page 109: ...pump for up to 1 hour 5 Drain all of the cooling water from the absorber and condenser 6 Fill the absorber and condenser with clean water 7 The unit is ready to operate in heating or simul taneous hea...

Page 110: ...corrosion Work Procedure 1 Drain all of the cooling water from the absorber and the condenser 2 Flow the clean water from the higher location than the chiller heater 3 Feed the clean water continuous...

Page 111: ...200 210 220 CRYSTALLIZATION AREA 6 5 6 0 5 5 5 0 4 5 4 0 4 0 4 5 5 0 5 5 6 0 6 5 7 0 200 200 210 210 220 220 230 230 240 240 250 250 260 260 270 270 280 280 290 290 300 300 310 310 320 320 330 330 340...

Page 112: ...057 U S quarts 1 U S gallon 3 785 liters 1 inch 25 4 mm 1 ton refrigeration 12 000 Btu hr 3 52 kW Absorption Liquid Chillers Duhring Diagram PTX Chart 4 4 82 2 87 8 93 3 98 9 104 4 110 0 115 6 121 1...

Page 113: ...2 55 50 55 69 55 87 56 05 56 23 56 40 56 58 1 620 54 93 55 12 55 31 55 49 55 68 55 86 56 05 56 23 56 41 56 59 56 76 56 94 57 11 1 630 55 47 55 66 55 85 56 03 56 22 56 40 56 58 56 76 56 94 57 12 57 29...

Page 114: ...52 63 52 81 52 99 53 18 53 36 53 53 53 71 1 55 50 89 51 10 51 30 51 50 51 69 51 89 52 08 52 28 52 47 52 66 52 84 53 03 53 21 53 40 53 58 53 76 53 94 54 11 54 29 1 56 51 49 51 69 51 89 52 09 52 29 52 4...

Page 115: ...zed The cause of the trouble is not readily apparent Check the causes in order Any of these causes will start the automatic dilution operation then stop the chiller heater Check that the diluting oper...

Page 116: ...d heater hot water flow stops the chiller heater stops immediately without diluting the solution If the absorption chiller heater is left as is the solution in it may crystallize within 4 5 hours To p...

Page 117: ...Controls Service Office 4 Non condensable gas remains in machine See Performance Check Method of Vacuum Pump on page 87 Check the performance of the vacuum pump Check the purge unit for a problem Pur...

Page 118: ...e following procedure Table 32 ABNORMAL SOLUTION AND REFRIGERANT LEVELS SECTION NORMAL CONDITION ABNORMAL CONDITION CAUSE COUNTERMEASURE Refrigerant Overflow LG5 High temperature of cooling water inle...

Page 119: ...ices Check the equipment connected as elements for a constantly monitoring interlock failure Check the signals from the interlocked devices Check the signals from equipment connected as elements for a...

Page 120: ...n Check if the refrigerant refining procedure has been performed recently See Refrigerant Refining Method on page 120 for more information 5 Heat exchange tube is dirty chilled water Contact your loca...

Page 121: ...5 The hot water outlet temperature rose suddenly or too high during heating operation Check equipment in heating load line Check chilled hot water low rate Check chilled hot water flow rate control s...

Page 122: ...ilure The close limit switch does not turn ON after 180 seconds have elapsed since the exhaust gas inlet damper closing command was issued 5 There was an exhaust gas outlet damper open failure The ope...

Page 123: ...ed hot water and cooling water pump stop Minimum dilution time passed Air conditional machine and cooling tower stop Yes Y HEX temp dilution completion temp No Failure alarm No Yes Yes No Failure with...

Page 124: ...peration takes approximately 15 minutes If the power is not restored within 5 hours the solution in the unit may be crystallized Contact your local Johnson Re start using the Control Panel located on...

Page 125: ...ate the unit heat exchanger from the external water systems and drain the heat exchanger sec tion of the system If no isolation valves are in stalled it may be necessary to drain the complete system 8...

Page 126: ...JOHNSON CONTROLS 126 FORM 155 35 ICOM2 EN CE GB 1018 DATE 10 30 2018 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 127: ...m clear ance dimensions Required maintenance space is available around the machine 6 Foundation bolts are properly installed 7 The levelness of the unit is within acceptable range The tolerance for le...

Page 128: ...aphragm valves in the purge line are closed 3 The spindle valve in the purge line is open 4 The changeover valves are set to operation mode 5 Detection component of each thermosensor are in serted int...

Page 129: ...______________________ ________________________________________________________________ ________________________________________________________________ _______________________________________________...

Page 130: ...intheacceptablerange See SECTION7 MAIN TENANCE of the manual for more information 35 Check that the chilled water outlet temperature is lower than the chilled water inlet temperature 36 Record the run...

Page 131: ...Signature _______________________________________ Form Completed by _______________________________________ _______________________________________ Title _____________ ____________ ___________ Month D...

Page 132: ...rigerant pump M S Gnd V Air purge blower M T Gnd V Purge pump M Thermal Relay Setting Refrigerant Purity Temperature Setting Solution circulation pump A Standard 1 040 kg per L or less Cooling Solutio...

Page 133: ...Outlet pressure Pressure gauge 11 Pressure drop DPG or calculation 12 9 Flow rate FM or calculation 10 Chilled hot Water Inlet temperature C Control panel Outlet temperature C Control panel Inlet pres...

Page 134: ...LD20020 Same Height Waterbox OUT P P IN NOTES Operating hours hours Number of purge times times Fill out each specification pressure drop according to the factory inspection report actual value If di...

Page 135: ...t from Purge Tank Flame Reaction Test Standard 4 0 cc per min or smaller Reaction Strong Weak None Amount of Gas P cc min Purge Amount from Purge Tank Elapsed time 1 hour Consumed time for measurement...

Page 136: ...Pennsylvania USA 17349 800 861 1001 Subject to change without notice Printed in USA Copyright by Johnson Controls 2017 www johnsoncontrols com ALL RIGHTS RESERVED Form 155 35 ICOM2 EN CE GB 1018 Issu...

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