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York YHAU-CE-JE Series Скачать руководство пользователя страница 126

JOHNSON CONTROLS

126

FORM 155.33-ICOM2.EN.GB

ISSUE DATE: 12/4/2017

SECTION 8 – TROUBLESHOOTING

TABLE 34 -

CHILLED WATER OVERCOOLING TROUBLESHOOTING

ITEM

CAUSE

COUNTERMEASURE

1

Chilled water flow rate drops or

changes suddenly

See if the chilled water flow rate changes suddenly (particularly
in case of variable flow rate specification). If it changes

suddenly, apply a limit of the change rate to the chilled water

flow or take another measure.

2

Cooling water temperature at the inlet
changes suddenly.

See if the cooling water at the inlet changes suddenly by
checking the start and stop of the fan. If the chilled water
temperature is low, the chiller-heater stops immediately. It
does not do the dilution process. If left as is, the solution may
crystallize in 4-5 hours. To prevent this, dilute the solution
according to the instruction shown in

Manual Refrigerant

Blowdown and Dilution Method on page 97

.

3

Load drops suddenly.

See if the load changes suddenly.

4

The refrigerant is dirty or contains
solution.

See if the refrigerant refining procedure has been performed

recently. See

Refrigerant Refining Method on page 97

for

more information.

5

Heat exchange tube is dirty (chilled
water)

Contact your local Johnson Controls Service Center.

6

Temperature controller or safety switch
is broken.

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Содержание YHAU-CE-JE Series

Страница 1: ...E JE 150 1440 TONS 527 5064 KW 50 HZ DOUBLE EFFECT EXHAUST GAS ABSORPTION CHILLER HEATER INSTALLATION OPERATION MAINTENANCE NEW RELEASE Form 155 33 ICOM2 EN GB 1217 Issue Date December 4 2017 COMPLIAN...

Страница 2: ...bels 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 i...

Страница 3: ...arest Johnson Controls Service office or accessing the John son Controls QuickLIT website at http cgproducts johnsoncontrols com It is the responsibility of rigging lifting and operating service perso...

Страница 4: ...Type York Absorption WASTE HOT WATER HEAT RECOVERY None No heat recovery J Heat recovery Standard JE Heat recovery Enlarged type LOW TEMP CHW L 1 0 C CHW LL 5 0 C CHW MODEL SERIES NAME EX 150 700 RT N...

Страница 5: ...Plate Type Heat Exchangers 18 Parallel Flow 19 High Temperature Generator HTG 19 Waste Hot Water Driven Generator and Low Temperature Generator 20 Condenser 20 Crystallization 20 Why Does Crystallizat...

Страница 6: ...he Use Of Water 50 Chilled Hot Water Outlet Temperature Controller 50 Liquid Level Gauges 50 Start the Chiller Heater 51 Stop the Chiller Heater 51 Interlock Procedure 51 SECTION 6 OPERATION 67 YHAU C...

Страница 7: ...pass Manual Operation 103 Exhaust Gas Contaminants 104 Exhaust Gas Chimney Requirements 104 Lifespan of Common Parts 105 Water Quality Control 107 Chemical Water Treatment 108 Replacement of Water 108...

Страница 8: ...FIGURE 20 Cooling Start Diagram 52 FIGURE 21 Cooling Stop Diagram 54 FIGURE 22 Exhaust Gas Input Preparation Flow Diagram 55 FIGURE 23 Exhaust Gas Input Stop Preparation Flow Diagram 56 FIGURE 24 Sequ...

Страница 9: ...TABLE 18 Purge Valve Operation 94 TABLE 19 Maintenance and Inspection 99 TABLE 20 Exhaust Gas Contaminants 104 TABLE 21 Lifespan of Common Parts 105 TABLE 22 Tendency of Generation of Scales and Corr...

Страница 10: ...JOHNSON CONTROLS 10 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 11: ...lure to follow the procedures and instruc tions detailed in this manual WARRANTY Johnson Controls warrants YHAU CE JE chiller heaters in accordance with the Limited Warranty En gineered Systems Equipm...

Страница 12: ...361 2001 Safety requirements of lithium bromide absorption water chiller heater heater The unit must be grounded No installation or main tenance work should be attempted on the electrical equipment wi...

Страница 13: ...3 SECTION 1 GENERAL CHILLER HEATER AND SAFETY INFORMATION FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 1 LD20923f Caution Risk of getting hand caught in Caution Risk of tumble Caution Prohibited Warni...

Страница 14: ...JOHNSON CONTROLS 14 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 15: ...circulate the refrigerant and solution in the cycle a purge unit to remove non condensable gas from the machine CONTROL PANEL The absorption chiller heater comes with a factory mounted and pre wired c...

Страница 16: ...EVRUEHU 8SSHU EVRUEHU RZHU YDSRUDWRU RZHU RZ 7HPS HQHUDWRU 0 0 0 0 DVWH RW DWHU QOHW DVWH RW DWHU 2XWOHW DVWH RW DWHU 9 0 LJK 7HPS HQHUDWRU LU 3XUJH ORZHU LU 3XUJH DPSHU KDXVW DV 2XWOHW DPSHU HOLYHUH...

Страница 17: ...pper Evaporator Lower Chilled Water Out Chilled Water In Dilute Solution Out ABSORBER The concentrated LiBr solution enters the absorber section of the chiller heater There it is sprayed over the abso...

Страница 18: ...owever 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 the lower evaporato...

Страница 19: ...solution heat exchanger The other leads to the low temperature generator in parallel Low Temp Heat Exchanger LD19980_a2 Concentrated Solution Out Dilute Solution Out Dilute Solution In Concentrated So...

Страница 20: ...pe liquid seal This completes the cooling cycle Condenser LD19980_a5 Condensed Refrigerant Cooling Water Outlet CRYSTALLIZATION All absorption chillers that use lithium bromide and water as the soluti...

Страница 21: ...de by weight Although the crystallization line on Figure 41 on page 116 or Figure 42 on page 117 does not extend that far you can see that the solution at a 45 concentration should not crystallize at...

Страница 22: ...JOHNSON CONTROLS 22 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 23: ...hod to be used 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...

Страница 24: ...xhaust gas duct If two or more chiller heaters share a chimney there is a significant risk of exhaust gas getting into a stopped chiller heater or rust getting into a heat exchanger s parts STRUCTURAL...

Страница 25: ...s of the control panel Do not allow negative pressure or any devices that cre ate negative pressure to operate in the area around the chiller heater This may cause an incomplete air purge Gas inhalati...

Страница 26: ...If you do problems or injuries may take place Apply only the specified source voltage Application of a different source voltage may cause a fire and electric shock Welding should only be done under c...

Страница 27: ...4 on page 27 Use liners to adjust the levelness of the unit For unit dimensions see Table 5 on page 41 and Table 6 on page 41 Do not leave any flammable substance or easily combustible object near the...

Страница 28: ...oling Water Inlet 2 Chilled Hot Water Inlet 3 Chilled Hot Water Outlet 4 Cooling Water Outlet Even Pass 5 Waste Hot Water Outlet 6 Waste Hot Water Inlet 7 Exhaust Gas Outlet 8 Exhaust Gas Inlet LD2234...

Страница 29: ...Water Inlet 2 Chilled Hot Water Inlet 3 Chilled Hot Water Outlet 4 Cooling Water Outlet 5 Exhaust Gas Outlet 1 6 Exhaust Gas Inlet 7 Exhaust Gas Outlet 2 8 Waste Hot Water Outlet 9 Waste Hot Wate Inle...

Страница 30: ...AT MUST NOT BE HEAT INSULATED Exhaust gas flue duct Evaporator shell Sight glass Heat exchanger Evaporation water changer casing Valve manipulator High temperature generator Refrigerant spray piping P...

Страница 31: ...ASSEMBLY FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 3 LD21899 Figure 7 HOT AND COLD INSULATION EXAMPLE ONE EXHAUST GAS OUTLET FLANGE Cold Insulaton Hot Insulaton Exhaust Gas Insulaton LD22992 Figure...

Страница 32: ...JOHNSON CONTROLS 32 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 SECTION 3 HANDLING STORAGE INSTALLATION AND REASSEMBLY LD22917 Figure 9 EXTERIOR OF CONTROL PANEL...

Страница 33: ...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 Water Out 4 16 C Cooling Water In...

Страница 34: ...E INSTALLATION AND REASSEMBLY Weights and Dimensions The chiller will be designed according to the different temperature and flow of exhaust gas and Jacket water The weight and dimensions of maximum s...

Страница 35: ...ND REASSEMBLY FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 4 Physical Data The chiller will be designed according to the different temperature and flow of exhaust gas and Jacket water The physical dat...

Страница 36: ...17 SECTION 3 HANDLING STORAGE INSTALLATION AND REASSEMBLY Electrical Data The chiller will be designed according to the different temperature and flow of exhaust gas and Jacket water The electrical da...

Страница 37: ...JOHNSON CONTROLS 37 SECTION 3 HANDLING STORAGE INSTALLATION AND REASSEMBLY FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 4 LD22918 Figure 10 EXTERNAL CONNECTION TERMINAL DETAILS...

Страница 38: ...REASSEMBLY CONTACT SPECIFICATION ABSORPTION CHILLER HEATER CONTROL PANEL EXTERNAL INPUT TERMINAL RESISTANCE LOAD MAX AC 240 V 2 A MIN DC 5 V 1 mA EXTERNAL OUTPUT TERMINAL ABSORPTION CHILLER HEATER CON...

Страница 39: ...aker See Figure 11 on page 38 Connect an interlock if necessary The tells you the interlock is required a Operating interlock Chilled hot water pump start signal Exhaust gas full open interlock b Cool...

Страница 40: ...CE JE Series of exhaust gas absorption chiller heaters Upper Communication System Configuration The configuration of the upper communication system is shown in Figure 13 on page 40 LD20594f Central M...

Страница 41: ...wiring are included Wiring work for Ethernet connection X Apply twisted pair cable Communication program for central monitoring unit X See Table 6 on page 41 and Table 7 on page 42 for the details of...

Страница 42: ...1 unit 0 1 C 3 Temp difference of Automatic start and stop control at cooling mode 5 0 C 00005 0001 1000 unit 1 unit 0 1 C 4 Automatic stop temp at heating mode thermo off temp 62 0 C 00007 0040 1000...

Страница 43: ...temp 38 0 C 00093 0001 4000 unit 1 unit 0 1 C 21 High temperature generator solution temp 145 0 C 00095 0001 4000 unit 1 unit 0 1 C 22 Exhaust gas temp 220 0 C 00097 0001 4000 unit 1 unit 0 1 C 23 Hig...

Страница 44: ...OR D SUB 9PIN Serial interface COM2 Connect User Created Cable ITEM CUSTOMER JCI REMARKS Control panel with upper communication function X Communication protocol Modbus RTU Wiring work for Modbus RTU...

Страница 45: ...Input Receive 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 Po...

Страница 46: ...LING STORAGE INSTALLATION AND REASSEMBLY LD21547 Figure 16 2 WIRE N 1 CONNECTION WITH USER CREATED CABLE 4 Wire Type Cable Diagrams Without Adaptor The following are sample cable diagrams for 4 wire t...

Страница 47: ...the Modbus RTU See Table 8 on page 42 for information about the Read Command or Table 9 on page 43 for informa tion about the Write Command Communication Protocol Modbus RTU Communication path type R...

Страница 48: ...3 2 77 83 40 79 49 75 56 72 62 71 68 71 70 70 71 70 70 69 70 71 53 60 3 75 83 41 80 49 75 59 75 62 71 65 68 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...

Страница 49: ...a higher discharge 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 Remov...

Страница 50: ...ooling water and waste hot water use the valves installed at the outlet line to make adjustments When the flow rate change of the chilled hot water is controlled if the flow rate change function is in...

Страница 51: ...ater starts the following occurs The solution circulation pump solution spray pump and refrigerant pump start The exhaust gas inlet valve the exhaust outlet valve and the waste hot water control valve...

Страница 52: ...temp Temperature control with HW three way valve starts Yes No Yes No Yes Yes No No D A B Remote or local mode selection Turn on power source Initialize self check mechanism Failure activated Engine...

Страница 53: ...rts Dilution complete Solution pumps and refrigerant pump stop No Yes FIGURE 20 COOLING START DIAGRAM CONT D No Dilution starts No Cooling water pump stops Yes Thermo OFF light ON No Engine operated N...

Страница 54: ...AM Failure alarm No Remote stop command ON Remote Yes No Dilution complete Yes No Temperature control with HW three way valve stops Chilled hot water pump and cooling water pump stop Failure without d...

Страница 55: ...IAGRAM Chiller heater stops with failure alarm No Chiller heater stops with failure alarm Yes Inlet and outlet damper open limit signal detected Air purge damper close limit signal detected No Chiller...

Страница 56: ...arts No Air purge blower starts Figure 23 EXHAUST GAS INPUT STOP PREPARATION FLOW DIAGRAM Chiller heater stops with failure alarm No Chiller heater stops with failure alarm Yes Air purge damper open l...

Страница 57: ...equipment do not need to be used 5 If the waste hot water chilled hot water and cooling water system is the common system it is required to install the isolation valve on the waste hot water chilled...

Страница 58: ...ce 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 leveling len...

Страница 59: ...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 into the thermowel...

Страница 60: ...______ ________________________________________________________________ ________________________________________________________________ _______________________________________________________________...

Страница 61: ...erange 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 running data on d...

Страница 62: ...________________________________ Form Completed by _______________________________________ _______________________________________ Title _____________ ____________ ___________ Month Day Year NOTES ___...

Страница 63: ...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 Solution spray pump A...

Страница 64: ...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 pressure Pressure ga...

Страница 65: ...eight 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 differential pres...

Страница 66: ...k 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 m min Total gas...

Страница 67: ...level has its own password There are certain screens displayed values programmable set points and manual controls not shown that are used to service the chiller heater LD21525 COMMON ITEMS Buttons ar...

Страница 68: ...ure You can do this from any screen We are showing 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...

Страница 69: ...Enter the password 8 Press the ENT key on the keypad After you 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 LANGUAG...

Страница 70: ...ges 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 Save...

Страница 71: ...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 while...

Страница 72: ...Status section contains three buttons C H W P Operat tells you if the chilled hot water pump is operating or not Co W P Operat tells you if the cooling water pump is operating or not Engine Operat te...

Страница 73: ...orber HT HEX Solution Outlet Temp temperature of the concentrated solution measured as it leaves the high temperature solution heat exchanger XG Generator Temp temperature of the concentrat ed solutio...

Страница 74: ...ling total number of times the absorption machine started in cooling mode Heating total number of times the absorption machine started in heating mode Solution Pump total number of times the solu tion...

Страница 75: ...hat triggered the alarm or failure 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 Arro...

Страница 76: ...ure for the fol lowing chilled hot water inlet and outlet cooling water inlet and outlet waste hot water inlet and outlet engine waste gas inlet and outlet These graphs are updated constantly regardle...

Страница 77: ...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 previous Trend sc...

Страница 78: ...e alarm sound 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 s...

Страница 79: ...uspension Chilled 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...

Страница 80: ...ocal Johnson Controls Service Center Solution Circulation P Abnormal Solution circulation pump abnormal Stop without dilution Solution circulation pump motor current exceeded the rated value and activ...

Страница 81: ...N within 180 seconds after it received the close signal Inlet Damper Overcurrent The inlet damper motor current exceeded the rated value and the thermal relay was activated Outlet Damper Overcurrent T...

Страница 82: ...cation cable between the touch panel and the temperature controller Contact your local Johnson Controls Service Center Control sensor abnormal The chilled hot water outlet temperature sensor the refri...

Страница 83: ...ype of alarm will light up in the Alarm section of the screen There is no buzzer Press the lit alarm button to access an on screen han dling guide for each item An on screen guide is avail able for ev...

Страница 84: ...ion control The HG XG generator pressure rose enough to trigger the load limit operation The alarm is automatically reset when the pressure falls Check the cooling water line Check the cooling water f...

Страница 85: ...al during the remote chilled hot water outlet temperature setting mode The RS485 communication option did not take place Press the ALARM RESET button after the sensor signal is repaired Tighten the te...

Страница 86: ...arameter sec tion can be changed See Change Numeric Values on page 68 for more information CONTROL PARAMETER The Control Parameter section of the Setting screen is used to enter parameters for the coo...

Страница 87: ...dilution Refrigerant Pump the Stop and Auto buttons control the refrigerant pump Blower Fan the Stop and Auto buttons control the blower fan Waste Hot Water Forced Bypass the ON and OFF buttons contro...

Страница 88: ...JOHNSON CONTROLS 88 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 SECTION 6 OPERATION THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 89: ...valve During service and maintenance work be sure to turn OFF the main circuit breaker MCB1 If you do not it may cause elec tric shock or a burn Contact your local Johnson Controls Service Office for...

Страница 90: ...f the checks show no problems start the chiller heater Checks After Operation Starts 1 10 15 minutes after the chiller heater and the so lution pump start check the level gauge of the re frigerant tan...

Страница 91: ...move 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 in Table...

Страница 92: ...e 34 LOCATION OF MANUAL VALVE IN PURGING SYSTEM EXAMPLE A Purge solenoid valve SV2 B Purge solenoid valve SV1 C Purge main valve V20 D Purge valve for purge tank line V19 E Purge valve for purge tank...

Страница 93: ...rs 9 Close valve V17 10 Press the Manual Purge OFF button The vacuum pump stops and the solenoid valves close MANUAL METHOD TO PURGE NON CONDENSABLE GAS FROM PURGING TANK While the absorption chiller...

Страница 94: ...hile the absorption chiller heater is running be sure to turn off the circuit breaker of the vacuum pump in the control panel If not the vacuum pump could start abruptly and cause injury Table 18 PURG...

Страница 95: ...JOHNSON CONTROLS 95 SECTION 7 MAINTENANCE FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 7 LD22170 Figure 35 PURGE SYSTEM...

Страница 96: ...JOHNSON CONTROLS 96 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 SECTION 7 MAINTENANCE LD22389 Figure 36 PROCESS AND INSTRUMENTATION DIAGRAM COOLING ONLY...

Страница 97: ...on the 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...

Страница 98: ...he electrical wiring of the solution 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...

Страница 99: ...shown in the next table For de tails contact your local Johnson Controls Service Cen ter Inspection frequency may be adjusted according to the actual operating conditions Table 19 MAINTENANCE AND INSP...

Страница 100: ...l greatly reduce the corrosive and scale forming properties of almost any type of water Be sure to request the first analysis within one month after the test operation is started Every 2 3 months C Ch...

Страница 101: ...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 periodic...

Страница 102: ...ate to the Setting screen on the Control Pan el LD21973 2 Press the Purge Mode Manual button 3 Press the Manual Purge ON button The purge solenoid valves open The purge operation begins 4 Press the Ma...

Страница 103: ...e be sure to press the Blower Fan Auto button If the chiller heater continues to operate with the blower fan in stop mode damage and failure of the unit may result Waste Hot Water Forced Bypass Manual...

Страница 104: ...Liquid sampling Filter with membrane filter Weight3 5 Solid carbide 0 5 mg per Nm3 Filter sampling Weight 6 Oil 0 3 mg per Nm3 Filter sampling Carbon tetrachloride extraction Infrared ray absorption s...

Страница 105: ...e exhaust gas driven generator tube Float valve for HG XG float box Every 60 000 hours Float valve for refrigerant tank Pump gasket valve o ring diaphragm rubber Every 24 000 hours Solution heat excha...

Страница 106: ...ermal relay Battery for sequencer unit Every 5 years Battery for touch panel Touch panel Every 30 000 hours Inverter option Fan for control panel Differential pressure switch Pressure sensor Pressure...

Страница 107: ...all 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 than 20 C while the chiller heater operates Turn th...

Страница 108: ...ed with sulfurous acid gas 1 month Common district 1 month TREATMENT FOR LONG STOPPAGE OF THE ABSORPTION CHILLER HEATER If the absorption chiller heater is stopped for a long time bacteria in the wate...

Страница 109: ...Fe OH 3 to make red water and 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...

Страница 110: ...x 0 1 Max 1 0 Max 1 0 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 NOTE...

Страница 111: ...ge method The wet storage method is available only where chilled hot water cooling water and waste hot water will not freeze Each storage method has its own characteristics Select the method to use ba...

Страница 112: ...rocedure is as follows 1 Completely drain the cooling water 2 Clean the water systems by passing clear water through them from a position higher than the chiller heater 3 Fill the cooling water system...

Страница 113: ...oes not drop 3 The manual valve on the purge piping should be fully closed See Figure 34 on page 92 STORAGE METHOD OF THE COOLING WATER DURING HEATING OPERATION PERIOD Do NOT operate the cooling water...

Страница 114: ...for 30 min 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...

Страница 115: ...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...

Страница 116: ...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 34...

Страница 117: ...1 057 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...

Страница 118: ...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 57...

Страница 119: ...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...

Страница 120: ...JOHNSON CONTROLS 120 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 121: ...store operations Solution is crystallized 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 chill...

Страница 122: ...ter hot water flow stops the chiller heater stops immediately without diluting the solution If the absorption chiller heater is left as it is the solu tion in it may be crystallized in 4 to 5 hours To...

Страница 123: ...on Controls Service Office 4 Non condensable gas remains in machine See Purge Procedure on page 90 Check the performance of the vacuum pump Check the purge unit for a problem Purge non condensable gas...

Страница 124: ...abnormal correct it according to the following procedure ABNORMAL SOLUTION AND REFRIGERANT LEVELS SECTION NORMAL CONDITION ABNORMAL CONDITION CAUSE COUNTERMEASURE Refrigerant Overflow LG5 High temper...

Страница 125: ...pment 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 constantly monitor...

Страница 126: ...s suddenly by checking the start and stop of the fan If the chilled water temperature is low the chiller heater stops immediately It does not do the dilution process If left as is the solution may cry...

Страница 127: ...et temperature HG XG solution temperature waste hot water inlet temperature HT HEX solution outlet temperature engine waste exhaust gas inlet temp engine waste exhaust gas outlet temp and or the HG XG...

Страница 128: ...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 sys...

Страница 129: ...lure 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 open...

Страница 130: ...three way valve stops Solution pumps and refrigerant pump stop Chilled hot water and cooling water pump stop Minimum dilution time passed Air conditional machine and cooling tower stop HEX temp diluti...

Страница 131: ...m the absorber Stop the machine to ensure the dilution operation takes place The dilution operation takes approximately 15 minutes Power is restored Chiller heater stops No If the power is not restore...

Страница 132: ...JOHNSON CONTROLS 132 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 SECTION 8 TROUBLESHOOTING THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 133: ...in 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 If glycol was used in the water system or chemi cal additives are...

Страница 134: ...170 0 170 0 170 0 170 0 170 0 170 0 Flow volume kg h 2 819 3 383 4 510 5 638 7 517 9 396 11 839 13 155 15 034 16 914 18 793 21 048 22 551 24 055 25 558 27 062 Pressure drop kPa 2 0 2 0 2 0 2 0 2 0 2 0...

Страница 135: ...JOHNSON CONTROLS 135 FORM 155 33 ICOM2 EN GB ISSUE DATE 12 4 2017 9 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 136: ...m 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 33 ICOM2 EN GB 1217 Issue...

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