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159

QUANTECH

FORM QTC3-NM1

ISSUE DATE 08/03/2022

SECTION 8 – UNIT OPERATION

TABLE 21 -

SAMPLE COMPRESSOR STAGING FOR RETURN WATER CONTROL

COMPRESSOR STAGING FOR RETURN WATER CONTROL

4 COMPRESSOR

COOLING SETPOINT = 45°F (7.2°C) RANGE = 10°F (5.6°C)

# OF COMP ON

* 1+HG

RWT

45°F

(7.2°C)

46.25°F

(7.9°C)

47.5°F

(8.6°C)

50.0°F

(10.0°C)

52.5°F

(11.4°C)

55.0°F

(12.8°C)

*Unloading only

LAST RUN TIME OF LEAD SYSTEM (MINUTES)

SETPOINT

ADJUST

(DEG. F)

FIGURE 31 -

SETPOINT ADJUST

LD11415

LEAVING CHILLED LIQUID CONTROL

OVERRIDE TO REDUCE CYCLING

To avoid compressor cycling the microprocessor will

adjust the setpoint upward temporarily. The last run

time of the system will be saved. If the last run time

was greater than 5 min, no action is to be taken. If the

last run time for the lead system was less than 5 min,

the microprocessor will increase the setpoint high limit

according to the chart at right, with a maximum value

allowed of 50°F (see

Figure 31 on page 159

If adding the setpoint adjust value to the setpoint high

limit causes the setpoint high limit to be greater than 50

°F, the setpoint high limit will be set to 50 °F, and the

difference will be added to the setpoint low limit.
Once a system runs for greater than 5 min, the setpoint

adjust will be set back to 0. This will occur while the

system is still running.

TABLE 22 -

RETURN CHILLED LIQUID CONTROL FOR 4 COMPRESSORS (6 STEPS)

*STEP

COMPRESSOR

COMPRESSOR ON POINT

COMPRESSOR OFF POINT

SETPOINT

1 W/HGB

SP + CR/8

SETPOINT

1 NO HGB

SP + CR/4

SP + CR/8

SP + 2*CR/4

SP + CR/4

SP + 2*CR/4

SP + CR/4

SP + 3*CR/4

SP + 2*CR/4

SP + CR

SP + 3*CR/4

NOTES:

1. Step 1 is Hot Gas Bypass and is skipped when loading occurs. Hot Gas Bypass operation is inhibited during Pumpdown.

2. Step 3 is skipped when loading occurs.

3. Step 4 is skipped when unloading occurs.

* STEP can be viewed using the OPER DATA key and scrolling to COOLING DEMAND.

Содержание QTC3040T

Страница 1: ...on to 230 ton 140 kW to 800 kW R 410A Issue Date August 3 2022 Air Cooled Scroll Chiller Installation Operation Maintenance Supersedes QTC3 NM1 1021 Form QTC3 NM1 822 Products are produced at a facili...

Страница 2: ...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 in question...

Страница 3: ...dge Exchange website at https docs johnsoncontrols com chillers It is the responsibility of rigging lifting and operating service personnel to verify the applicability of these documents to the equipm...

Страница 4: ...0 380 3 60 46 460 3 60 58 575 3 60 3110T B E Q Quantech T Variable Speed Scroll QTC3055T QTC3060T QTC3070T QTC3075T QTC3080T QTC3085T QTC3090T QTC3095T QTC3100T Unit Designator S Standard Efficiency H...

Страница 5: ...Removal from Shipping Container 32 Lifting Using Lugs 32 Lifting Using Shackles 32 SECTION 4 INSTALLATION 35 Installation Checklist 35 Startup Commissioning 35 Location and Clearances 35 Spring Isolat...

Страница 6: ...ng Sequence 155 Capacity Control 155 Suction Pressure Limit Controls 156 Discharge Pressure Limit Controls 156 Leaving Chilled Liquid Control 156 Leaving Chilled Liquid Control Override to Reduce Cycl...

Страница 7: ...ce Mode Analog and Digital Inputs 168 Control Inputs Outputs 169 Checking Inputs and Outputs 171 Optional Printer Installation 177 Troubleshooting 179 SECTION 10 MAINTENANCE 183 Compressors 183 Conden...

Страница 8: ...Standard Low Sound or Ultra Quiet QTC3070T QTC3225T 68 FIGURE 17 Fan Wiring High Air Flow 70 FIGURE 18 Single And Dual Point Wiring Options 72 FIGURE 19 Compressor Wiring 76 FIGURE 20 Power Options C...

Страница 9: ...s 146 TABLE 19 Native Bacnet Modbus and N2 Communications Data Map 147 TABLE 20 Yorktalk 2 Communications Data Map 151 TABLE 21 Sample Compressor Staging for Return Water Control 157 TABLE 22 Return C...

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Страница 11: ...ited to parts only replacement and shipping of any faulty part or sub assembly which has failed due to poor quality or manufacturing errors All claims must be supported by evidence that the failure ha...

Страница 12: ...y to the operator or damage to the equipment The unit must not be operated outside the design pa rameters specified in this manual Structural Support Structural support of the unit must be provided as...

Страница 13: ...ls used in the unit are generally non toxic non flammable and non corrosive and pose no special safety hazards Use of gloves and safety glasses is however recommended when working on the unit The buil...

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Страница 15: ...on powder paint which when subjected to ASTM B117 1000 hour salt spray testing yields a minimum ASTM 1654 rating of 6 Units are designed in accordance with NFPA 70 National Electric Code ASHRAE ANSI...

Страница 16: ...ed plate evaporators are catego rized as pressure H fittings per CSA B51 a CRN label or marking is not provided on the evaporator Ac cording to the Canadian Standards Association s Boil er Pressure Ve...

Страница 17: ...nt timer delay compressor starts Unit Keys This section is used to Set time Set unit options Oper Data Key The microprocessor control center is capable of dis playing the following Return and leaving...

Страница 18: ...mer Converts unit power voltage to 115 1 60 2 0 KVA or 3 0 KVA capacity Factory mounting includes primary and secondary wiring between the transformer and the control panel Factory mounted Control Opt...

Страница 19: ...closure Panels Unit Tamperproof Enclosure Panels prevent unauthorized access to units Enclosure Panels can provide an aes thetically pleasing alternative to expensive fencing Additionally for proper h...

Страница 20: ...CTION 2 PRODUCT DESCRIPTION ITEM DESCRIPTION 1 Fan Assemblies 2 MCHX Condenser 3 Control Panel 4 Compressors 5 Receiver Included with Optional Heat Recovery Condenser 6 Filter Driers Figure 2 UNIT COM...

Страница 21: ...PRODUCT DESCRIPTION 2 Figure 3 UNIT COMPONENTS SIDE 1 2 3 4 5 6 7 8 ITEM DESCRIPTION 1 Fan Deck 2 MCHX Condenser 3 Coil Headers 4 Control and Power Panels 5 Compressors 6 Brazed Plate Evaporator 7 For...

Страница 22: ...8 03 2022 SECTION 2 PRODUCT DESCRIPTION Figure 4 POWER PANEL COMPONENTS ITEM DESCRIPTION 1 Fan Contactor 2 Fan Fuses 3 Fan Contactor 4 Disconnect Switch Optional 5 XTBF1 6 Compressor Contactors 7 Comp...

Страница 23: ...N 2 Figure 5 POWER PANEL CONTROL COMPONENTS ITEM DESCRIPTION 1 Fan Contactor 2 Fan Fuses 3 Control Relay 4 Microcomputer Control Center 5 Display 6 Keypad 7 XTBC1 8 Microboard 9 XTCB2 10 XTBF2 11 Comp...

Страница 24: ...0 3 60 28 230 3 60 40 380 3 60 46 460 3 60 50 380 415 3 50 58 575 3 60 STARTER Starter PIN 13 X Across the Line starter T Soft Start DESIGN Design Series PIN 14 A Design Series A MicroChannel Copeland...

Страница 25: ...pecial Pressure Readout required SAFETY Safety Codes PIN 24 C European Saftey Code CE G China Safety Code GB Not Applicable to eLogia L N American Safety Code cUL cETL SENSOR PIN 25 X X Q Special Quot...

Страница 26: ...equired R Remote Cooler Required PIN44 PIN 44 G Flow Switch 10 Glycol W Flow Switch 10 Glycol COILS Coils PIN 45 X Aluminum Coils P Post Coated Dipped Coil T Post Coated Microchannel Coils HEAT Heat R...

Страница 27: ...d Q Special Isolators required PIN 55 PIN 55 Marketing Purposes Only PIN 56 PIN 56 Marketing Purposes Only SHIP Ship Instructions PIN 57 X No Containerization required with Shipping Bag A Buy American...

Страница 28: ...mp Kit O P Pump Kit P R Pump Kit R S Pump Kit S T Pump Kit T U Pump Kit U V Pump Kit V W Pump Kit W Y Pump Kit Y Z Pump Kit Z U Pump Kit U required V Pump Kit V required Q Special quote PKGOPT Pump Pa...

Страница 29: ...Solenoid Valve Sight Glass Sensor Pressure or Temperature Service Stop Access Valve Pressure Switch Filter Drier Removable Core S PS T Ambient Air Sensor DV HTC LTC 585 PSIG 650 PSIG 450 PSIG LD13139...

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Страница 31: ...ect the coils and fins from potential damage and corrosion particularly where building work is in progress The unit should be stored in a location where there is minimal activity in order to limit the...

Страница 32: ...r 4 Pull the unit until the lifting locations are outside of the container Place 4 X 4 blocks of wood under the base rails of the unit Gently rest the unit on the blocks and remove the chains and lift...

Страница 33: ...FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 3 Rigging HANDLING AND STORAGE 3 Figure 7 UNIT RIGGING LIFTING POINTS LD18120 A B C D Y X Control Panel LD18121 A B C D E F Y X Control Panel 4 Fan Units 5...

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Страница 35: ...INSTALLATION In installations where winter operation is intended and snow accumulations are expected additional height must be provided to ensure normal condenser air flow Clearances are listed in Fig...

Страница 36: ...mportant that the following considerations be observed 1 The chilled liquid piping system should be laid out so that the circulating pump discharges directly into the cooler The suction for this pump...

Страница 37: ...denser coil module No more than 3 ft 1 m of light construc tion duct work should be supported by the unit Where cross winds may occur any duct work must be sup ported to prevent side loading on the un...

Страница 38: ...in parallel with XTBC2 Termi nals 25 to 26 for system 1 and XTBC2 Terminals 27 to 28 for system 2 See Figure 5 on page 23 Figure 13 on page 44 and unit wiring diagram Alarm Status Contacts Normally op...

Страница 39: ...ng 120 VAC power from the unit at or below freezing temperatures can result in damage to the evaporator and unit as a result of the chilled liquid freezing LD13141 Power Panel Control Panel Terminal B...

Страница 40: ...e capable of switching 24 VDC 115 VAC Gold contacts are recommended If sup plied contacts are from a Relay Contac tor Inductive Load the coil of the Relay Contactor must be suppressed Typical suppress...

Страница 41: ...t the block age Contact a professional company if a chemical cleaning to BPHE is required Chemical cleaning is one of the high risks of BPHE corrosion any chemical corrosion will void the warranty No...

Страница 42: ...dif ference in temperature between the two transis tors provides a measurement of fluid velocity past the sensor probe When fluid velocity is high the temperature differential is small As fluid veloci...

Страница 43: ...nt the switch in the rising pipes Mount the thermal dispersion flow switch on the top of the horizontal pipes only if the pipe is fully filled with liquid Mount the thermal dispersion flow switch on t...

Страница 44: ...BASED ON DAILY SCHEDULE SYSTEM 1 ALARM DRY CONTACTS OPEN ALARM Normally jumpered Can be used as EMERGENCY STOP contacts from an external source 115VAC All chiller supplied contacts are rated at 115 VA...

Страница 45: ...3120THE 40 55 100 385 10 125 QTC3130THE 40 55 150 625 10 125 QTC3150THE 40 55 150 625 10 125 QTC3170THE 40 55 150 625 10 125 QTC3205THE 40 55 230 625 10 125 QTC3225THE 40 55 230 650 10 125 NOTES 1 For...

Страница 46: ...40 0 1 0 1 0 25 6 1 4 6 0 50 0 1 0 1 0 28 0 1 6 28 9 50 0 0 9 1 0 26 6 1 7 28 0 NOTE Water Pressure Drop Curves may extend past the minimum and maximum water flow ranges Table 5 ETHYLENE AND PROPYLENE...

Страница 47: ...6 5 4 6 5 6 NOMINAL TONS PER COMPRESSOR Circuit 1 13 15 15 15 32 32 32 32 Circuit 2 13 13 15 32 32 15 32 32 CONDENSER Total Face Area Ft2 106 9 106 9 106 9 133 6 160 3 213 8 213 8 267 2 Number Of Rows...

Страница 48: ...ors Per Unit 4 4 4 5 6 6 5 NOMINAL TONS PER COMPRESSOR Circuit 1 10 13 15 13 15 15 15 Circuit 2 10 13 15 15 13 15 32 CONDENSER Total Face Area Ft2 106 9 106 9 106 9 106 9 106 9 160 3 160 3 Number Of R...

Страница 49: ...PER COMPRESSOR Circuit 1 32 25 32 32 35 40 Circuit 2 32 32 32 32 35 40 CONDENSER Total Face Area Ft2 213 8 213 8 267 2 267 2 320 7 320 0 Number Of Rows 1 1 1 1 1 1 Fins Per Inch 20 20 20 20 20 20 COND...

Страница 50: ...575 3 60 517 633 COMPRESSOR HEATERS Compressor heaters are standard ZP180 compres sors utilize 70 W heaters ZP235 compressor use 120 W heaters and ZP285 ZP385 and ZP485 utilize 150 W heaters If power...

Страница 51: ...116 0 14 0 92 8 J 5 1800 13 0 92 0 7 9 55 5 6 5 46 0 5 2 36 8 K 15 3600 35 0 232 0 20 9 143 0 17 5 116 0 14 0 92 8 L 20 3600 45 0 290 0 28 7 190 0 22 5 145 0 18 0 116 0 M 3 1800 8 0 64 0 4 7 38 0 4 0...

Страница 52: ...200 150 150 460 114 150 125 125 575 96 150 110 110 055T 208 301 400 300 300 230 297 400 300 300 380 162 200 175 175 460 141 200 150 150 575 106 150 110 110 060T 208 331 400 350 350 230 327 400 350 35...

Страница 53: ...7 57 7 330 57 7 288 2 7 4 37 30 9 192 30 9 139 2 4 5 23 1 30 9 192 30 9 139 2 4 5 23 1 26 9 180 26 9 180 2 4 19 26 9 180 26 9 180 2 4 19 21 5 132 21 5 132 2 2 9 15 3 21 5 132 21 5 132 2 2 9 15 3 48 5...

Страница 54: ...200 150 150 095T 208 475 600 500 500 230 471 600 500 500 380 273 400 300 300 460 231 250 250 250 575 178 200 200 200 100T 208 483 600 500 500 230 478 600 500 500 380 278 400 300 300 460 235 250 250 25...

Страница 55: ...53 1 290 3 4 19 53 1 290 53 1 290 3 4 19 42 5 255 42 5 255 3 2 9 15 3 42 5 255 42 5 255 3 2 9 15 3 106 2 523 106 2 523 2 7 6 44 106 2 523 106 2 523 2 7 6 44 106 2 578 106 2 578 2 7 4 37 106 2 578 106...

Страница 56: ...74 400 400 400 460 311 400 350 350 575 246 400 300 300 150T 208 634 800 700 700 230 632 800 700 700 380 383 400 400 400 460 319 400 350 350 575 252 400 300 300 160T 208 740 800 800 800 230 738 800 800...

Страница 57: ...06 2 578 5 7 4 37 64 3 355 64 3 355 64 3 355 5 4 5 23 1 64 3 355 64 3 355 64 3 355 5 4 5 23 1 53 1 290 53 1 290 53 1 290 5 4 19 53 1 290 53 1 290 53 1 290 5 4 19 42 5 255 42 5 255 42 5 255 5 2 9 15 3...

Страница 58: ...1 250 500 230 2 6 500 2 250 500 3 2 0 400 2 3 0 250 1 250 500 380 1 6 500 1 250 500 2 3 0 250 1 6 350 460 1 6 500 1 6 350 1 6 350 575 1 6 500 1 6 350 1 6 350 QTC3070T 208 2 6 500 2 250 500 3 2 0 400 2...

Страница 59: ...3 0 250 1 250 500 400 460 1 6 500 2 3 0 250 1 250 500 2 3 0 250 1 250 500 575 1 6 500 2 3 0 250 1 250 500 2 3 0 250 1 250 500 QTC3125T QTC3130T 208 2 6 500 2 250 500 3 2 0 400 2 250 500 3 2 0 400 380...

Страница 60: ...opping of the unit and or operation at ambient tempera tures in excess of 95 F 35 C is anticipated 4 Maximum fuse size is based upon 225 of the rated load amps for the largest motor plus 100 of the ra...

Страница 61: ...L FAN OVERLOAD KFS RELAY FAN SPEED KH HEATER RELAY KM COMPRESSOR CONTACTOR INCLUDING COIL SUPPRESSOR KCR CONTROL RELAY KP PUMP CONTACTOR PART INCLUDING COIL SUPPRESSOR DESIGNATION DESCRIPTION KT RELAY...

Страница 62: ...tenance manual for customer connections and customer connection notes non compliance to these instructions will invalidate unit warranty 2 Wiring and components for compressor 3 only fitted when unit...

Страница 63: ...ic replaces the standard drawing details for a unit with two com pressor on system 1 56 Soft starter option details shown on sheet 120 of schematic replaces the standard drawing details for a unit wit...

Страница 64: ...ND 2 2 5 6 5 4 3 2 1 1 KM1 2 6 6 5 4 3 2 1 1 KM2 2 6 6 5 4 3 2 1 1 KM3 2 10 6 5 4 3 2 1 2 KM2 2 9 6 5 4 3 2 1 2 KM1 F3 6 5 4 3 2 1 1 QMMSC1 6 5 4 3 2 1 1 QMMSC2 6 5 4 3 2 1 1 QMMSC3 6 5 4 3 2 1 2 QMMS...

Страница 65: ...4 1 XP4 RED BLK 8 5 EXT ACC BDAT J6 2 5 8 2 SCR 8 J11 7 7 12 12 T5 24 VAC 2 1 1 2 1 R PORT 2A RS485 TB5 REF SHD COM HOT ELINK 4 TB1 3 2 1 BLK RED SCR 1 7 4 J8 1 4 7 EXT ACC 1 BST 9 BLK RED SCR 7 4 J10...

Страница 66: ...TBF EXT 1 SCH3 126 1 XTBF 2 XTB7 1 1 K1 4 1 2 K3 1 1 XTBF 2 XTB8 1 4 K9 V EXT EEH1 EXT EEH2 149 1 XTBF 3 14 11 M2 M1 EXT 1 BMP1 4 14 11 M2 M1 EXT 1 BMP2 8 14 11 M2 M1 EXT 2 BMP2 8 14 11 M2 M1 EXT 2 BM...

Страница 67: ...2 YLLSV 2 1 1 8 K18 3 1 7 1 3 K5 6 XTB10 7 1 9 K21 120 1 XTBF 220 2 XTBF 2 S2 1 S1 N L T2 T1 EXT 2 BMP1 2 S2 1 S1 N L T2 T1 EXT 2 BMP2 2 S2 1 S1 N L T2 T1 EXT 2 BMP3 6 1 13 14 1 KCR 1 1 13 14 2 KCR A2...

Страница 68: ...D OR ULTRA QUIET QTC3070T QTC3225T 035 21583 125 REV A LD21181a 2 1 2 X 2 8 1L1 1 1 1L2 1 1 1L3 1 1 6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 1 1 F4 AMB NB21 350 351 352 150 151 152 GND GND GND GND GND GND 15...

Страница 69: ...NDARD LOW SOUND OR ULTRA QUIET QTC3070T QTC3225T CONT D LD21181b Y 2 8 2L1 1 5 2L2 1 5 2L3 1 5 6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 1 2 F4 450 451 453 GND GND GND GND 250 251 252 256 257 258 256 257 258...

Страница 70: ...QUANTECH 70 FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA Figure 17 FAN WIRING HIGH AIR FLOW FAN WIRING 035 21583 118 REV F LD21180a...

Страница 71: ...71 QUANTECH FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA 5 5 FIGURE 17 FAN WIRING HIGH AIR FLOW CONT D LD21180b...

Страница 72: ...3 2022 SECTION 5 TECHNICAL DATA Figure 18 SINGLE AND DUAL POINT WIRING OPTIONS SINGLE AND DUAL POINT WIRING OPTIONS 035 21583 116 REV C SINGLE AND DUAL POINT WIRING OPTIONS SINGLE POINT WIRING OPTIONS...

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Страница 74: ...QUANTECH 74 FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA PUMP WIRING 035 21583 105 REV E DWG 5...

Страница 75: ...75 QUANTECH FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA 5 5 PUMP WIRING LD16758a DWG 5...

Страница 76: ...N 5 TECHNICAL DATA COMPRESSOR WIRING Figure 19 COMPRESSOR WIRING 035 21589 106 REV N 7 9 3 0 7 25 4 7 1 9 8 9 8 1 9 8 9 8 1 7 1 7 6 1 7 6 7 7 7 3 3 9 8 6 7 7 7 3 3 9 8 1 7 1 7 1 7 7 1 7 6 8 6 51 6 6 7...

Страница 77: ...77 QUANTECH FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA 5 5 FIGURE 19 COMPRESSOR WIRING CONT D 1 4 25 1 7 1 7 1 7 1 7 1 7 1 7 7 9 9 9 9 9 25 3 5 3 3 7 25 63 5 63 63 7 63 5 63 63 7 25...

Страница 78: ...ON POWER SIDE OF DIVIDER PANEL LA 2L1A 2L1B 2L1C 1L1A B 1L1C 1L2C 1L3C 2L2A 2L2B 2L2C 1L2A B 2L3A 2L3B 2L3C 1L3A B 2L1A 2L2A 2L3A 2L1B 2L2B 2L3B 2L1C 2L2C 2L3C 1L1A 1L2A 1L3A B B B C C C 1L1C 1L2C 1L...

Страница 79: ...T D LD13234D B B B A B A B A B 2L1C 2L2C 2L3C 2L1C 2L3C 2L2C 2L1A 2L2A 2L3A 2L1B 2L2B 2L3B L1 L2 L3 6 4 2 5 3 1 2L3 2L3 2L2 2L2 2L1 2L1 33 305 304 303 A2 A1 22 6 4 2 21 5 3 1 KP2 2 24 302 301 300 A2 A...

Страница 80: ...QUANTECH 80 FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA POWER PANEL Figure 21 POWER PANEL 035 21589 101 REV H 7 9 03 4 5 0 3 4 3 4 0 0 1 1 2 25 5 7 5 7 5 3 5 0 2 63 63 63 1 1 0 0 0...

Страница 81: ...81 QUANTECH FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 5 TECHNICAL DATA 5 5 FIGURE 21 POWER PANEL CONT D 7 63 63 2 2 3 1 1 0 8 7 7 6 6 5 0 3 8 9 9 3 4 4 5 5 63 25 7 7 1 0 0 0...

Страница 82: ...A 227A 24 131A 33 9 8 7 6 5 4 3 2 1 XTB8 1C 1D 23 140A 140C XP4 19C 13K 18C 4 3 2 1 XP4 13I 19B 18B 4 3 2 1 ELINK AMB RED ELINK AMB BLK WHT BLK PORT3 RS485 COM SHD PORT1 J2 PORT2A RS485 PORT2B RS232 S...

Страница 83: ...D 5V SHLD GND CTS RTS TB6 1 J4 J13 J11 J9 J8 J7 J6 J1 TB4 TB3 TB2 PL1 TB1 J15 J11 QPA1 BLK J11 QPA2 SCR J11 QPA1 SCR J11 QPA2 RED J11 QPA2 BLK J11 QPA1 RED LK1 A NEG LK1 A POS 15 10 5 14 13 12 11 9 8...

Страница 84: ...ces indicated below resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutout...

Страница 85: ...low resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts however the sy...

Страница 86: ...d possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts however the system designer must consider potential performance...

Страница 87: ...low resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts however the sy...

Страница 88: ...ated below resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts however...

Страница 89: ...cated below resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts howeve...

Страница 90: ...below resulting in unpredictable airflow patterns and possible diminished performance Johnson Control s unit controls will optimize operation without nuisance high pressure safety cutouts however the...

Страница 91: ...control panel informa tion packet is a drawing and table specifically for each chiller based on the option selection The drawing and table will be similar to the two samples shown below and on the fo...

Страница 92: ...CLEARANCES See Figure 24 below for minimum clearances for all QTC3 units NOTES 1 No obstructions allowed above the unit 2 Only one adjacent wall may be higher than the unit 3 Adjacent units should be...

Страница 93: ...TECHNICAL DATA 5 5 ISOLATOR LOCATIONS FOUR FAN ISOLATOR LOCATIONS QTC3040THE QTC3050THE QTC3055THE QTC3060THE QTC3080THE FOUR FAN ISOLATOR LOCATIONS QTC3070TSE QTC3075TSE QTC3085TSE 1 4 1 4 All dimens...

Страница 94: ...2022 SECTION 5 TECHNICAL DATA FIVE and SIX FAN ISOLATOR LOCATIONS QTC3095TSE QTC3110TSE QTC3090THE QTC3100THE All dimensions are inches unless otherwise specified LD18080 EIGHT FAN ISOLATOR LOCATIONS...

Страница 95: ...ATE 08 03 2022 SECTION 5 TECHNICAL DATA 5 5 TEN FAN ISOLATOR LOCATIONS QTC3160TSE QTC3150THE QTC3170THE All dimensions are inches unless otherwise specified LD18082 TWELVE FAN ISOLATOR LOCATIONS QTC32...

Страница 96: ...ER RATED CAPACITY LB DEFLECTION RATED IN COLOR CODE 029 25334 002 433668 675 1 320 DK PURPLE 029 25334 003 433669 900 1 020 DK GREEN 029 25334 004 433670 1200 0 900 GRAY 029 25334 005 433871 1360 0 77...

Страница 97: ...g all isolator bases to the same elevation 1 4 in maximum difference can be tol erated 4 Bolt or anchor all isolators to supporting structure utilizing base slotted holes C 5 Place equipment on top of...

Страница 98: ...ONS 6 CONSULT FACTORY FOR CONCRETE INSTALLATION RESTRAINED VIBRATION ISOLATOR FOR 2 INCH DEFLECTION SEISMIC MOUNT SIZE RATED LOAD LB RATED DEFLECTION IN SPRING RATE LB IN SOLID LOAD LB COLOR CODE ALLO...

Страница 99: ...6 With all shims E in place position equipment on top of plate A of isolator Bolt equipment securely to top plate of isolator using a minimum of 2 5 8 UNC A325 grade 5 SAE bolts or weld equipment or...

Страница 100: ...stallation instructions 3 Mount molded in weather resistant duralene com pound as standard Also available in other materi als such as natural rubber extreme high tempera ture silicone high damped sili...

Страница 101: ...or housekeeping pad or sub base ensuring that all isolator centerlines match the equipment mounting holes The VMC group recommends that the isolator base A be in stalled on a level surface Shim or gro...

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Страница 103: ...p running when vacuuming the system removing refrigerating from the system or adding refrigerant to the system until the process is completed If you do NOT the evapora tor may freeze and ruin the syst...

Страница 104: ...nect a hand oil pump Part No 470 10654 000 to the 1 4 in oil charging connec tion on the compressors with a length of clean hose or copper line but do not tighten the flare nut Using clean oil of the...

Страница 105: ...30 C before the unit is restarted Flow Switch Verify a chilled water flow switch is correctly fitted in the customer s piping on the cooler outlet and wired into the control panel correctly using shie...

Страница 106: ...d the VFD sensorless flow and pressure this will be your new setpoint 5 Set parameter 20 21 to the Sensorless Pressure readout taken in the previous step LD18420 LD18421 LD18422 6 Set parameter 22 89...

Страница 107: ...been completed 3 Visually check for refrigerant piping leaks 4 If available open the suction line ball valve dis charge line ball valve and liquid line valve for each system 5 At shutdown check that t...

Страница 108: ...er is equipped with VSD fans the cycling condenser fan cannot be used to con firm phase sequence Use a phase checker or temporarily bypass the VSD before starting a compressor 5 Turn System 2 off and...

Страница 109: ...F 12 C to 9 C 18 in 46 cm from the heat exchanger Set the superheat for no less than 10 F 12 C with only a single compressor running on a circuit The superheat is calculated as the difference between...

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Страница 111: ...r controller The IPU II board contains a microprocessor and is the controller The I O board handles all of the chiller I O Inputs and Outputs System inputs from pressure transducers and temperature se...

Страница 112: ...arrow keys The display will update all information at a rate of about 1 a second Display Messages may show characters indicating greater than or less than These characters indicate the actual values a...

Страница 113: ...trol panel is in the OFF position which will not allow the unit to run R E M O T E C O N T R O L L E D S H U T D O W N The REMOTE CONTROLLED SHUTDOWN mes sage indicates that either an ISN system or RC...

Страница 114: ...a factory set limit to keep the system from faulting on the high discharge pressure cutout due to high load or pull down conditions When the unload point is reached the microprocessor will automatica...

Страница 115: ...gnal is restored to the input OVERRIDE is to only be used in emergencies or for servicing Manual override mode automatically disables itself after 30 min S Y S 1 P U M P I N G D O W N S Y S 2 P U M P...

Страница 116: ...ig plus or minus 10 psig 27 92 barg plus or minus 69 barg and closes at 330 psig plus or minus 25 psig 22 75 barg plus or minus 1 72 barg The compressor is also equipped with a discharge temperature s...

Страница 117: ...re set to their default values which may not be the desired operating values Once a faulty battery is detected the unit will be prevented from running until the PRO GRAM key is pressed Once PROGRAM i...

Страница 118: ...essure System X Low Suct Pressure Low Liquid Temp System X MP HPCO Fault 115VAC Undervoltage Low Battery Check Prog Step Optn Unit Warning Message Rem Stop No Run Permissive Flow Switch Open Incorrect...

Страница 119: ...ow keys or the ENTER ADV key located under the ENTRY section System 2 information will only be dis played for 2 system units DISPLAY PRINT KEYS With the UNIT TYPE set as a liquid chiller no jumper fro...

Страница 120: ...ay of COOLING DEMAND indicates the current step in the capacity control scheme when in Return Water Control Mode The number of available steps are determined by how many compressors are in the unit In...

Страница 121: ...e information E V A P O R A T O R W A T E R P U M P S T A T U S X X X X The evaporator pump dry contacts are energized when any compressor is running or the unit is not OFF on the daily schedule and t...

Страница 122: ...nel programming selections This data will be temporarily stored in memory and trans mission of this data will begin to the printer A sample Operating Data printout is shown below Note Not all values a...

Страница 123: ...er Installation on page 179 for Printer Installation information History Printout Pressing the PRINT key and then the HISTORY key allows the operator to obtain a printout of information relating to th...

Страница 124: ...perating parameters at the time of a unit or system safety shutdown When the HISTORY key is pressed the following message is displayed D I S P L A Y S A F E T Y S H U T D O W N N O 1 1 T O 9 While thi...

Страница 125: ...F Displays the programmed Setpoint and Range if the chiller is programmed for return chilled liquid control A M B I E N T A I R T E M P X X X X F Displays the Ambient Temp at the time of the fault L...

Страница 126: ...lenoid was energized at the time of the fault S Y S X F A N S T A G E X X X Displays the number of Fan Stages in the system active at the time of the fault Software Version The software version may be...

Страница 127: ...rrow key and DOWN arrow key are also used for programming the control panel such as changing numerical or text values when programming cooling setpoints setting the daily schedule changing safety setp...

Страница 128: ...point display entry screen will appear SETPOINTS KEYS 00069VIP Leaving Chilled Liquid Control S E T P O I N T 4 5 0 F R A N G E 2 0 F The above message shows the current chilled water temperature SETP...

Страница 129: ...range If the control mode has been programmed for RETURN LIQUID control the mes sage below would be displayed in place of the previous message When in leaving chilled liquid temperature control the m...

Страница 130: ...top time pressing the ENTER ADV key will advance the schedule to the following display S __ M T W T F S H O L I D A Y N O T E D B Y The line below the empty space next to the S is the cursor and will...

Страница 131: ...cutout point Details are explained under the topic of SYSTEM SAFETIES L O W A M B I E N T T E M P C U T O U T 2 5 0 F The LOWAMBIENT TEMP CUTOUT allows the user to select the chiller outside ambient t...

Страница 132: ...cific chillers on a single RS 485 line ID 0 7 is selectable F A N D I F F E R E N T I A L O F F P R E S S U R E X X X P S I G The Fan Differential Off Pressure is the programmed differential pressure...

Страница 133: ...IFFERENTIAL OFF PRESSURE 80 psid 160 psid 125 psid 5 51 bard 11 03 bard 8 62 bard TOTAL NUMBER OF COMPRESSORS SINGLE SYSTEM 2 3 3 DUAL SYSTEM 4 6 6 NUMBER OF FANS PER SYSTEM 2 4 3 UNIT SYSTEM TRIP VOL...

Страница 134: ...essure Cutout Range Remote Setpoint Low Ambient Temp Cutout Range Display Only Leaving Liquid EMS PWM Temperature Remote Temp Cutout Reset Setpoint Anti Recycle Timer Fan Control On Pressure Fan Diffe...

Страница 135: ...gging Timer 1 s Inc Dec 1 s 60 s 1 s Fan Speed Control SINGLE SPEED CE and STANDARD NA use Staged Fan Control SINGLE SPEED or STANDARD QTC3 TWO SPEED FANS QTC3 VSD FANS SINGLE SPEED Two Comp Fan Speed...

Страница 136: ...entry position 0 99999 0 Sys 1 2 Compressor 1 3 Start Counters 1 Inc Dec per entry position 0 99999 0 EEV Max Operating Pressure 031 02577 004 EEV 5 0 Inc Dec 20 0 psig 1 38 barg 600 0 psig 41 38 barg...

Страница 137: ...key The OPTIONS key is used to scroll through the list of options by repeatedly pressing the OPTIONS key After the selected option has been dis played the UP and DOWN arrow keys are then used to chang...

Страница 138: ...point Load Limit and History Buffer Request If the unit receives no valid ISN transmission for 5 min it will revert back to the locally programmed values Option 6 Unit Control Mode C O N T R O L M O D...

Страница 139: ...only programmable in Service Mode Incorrect programming may cause dam age to compressors Option 9 Condenser Fan Control Mode F A N C O N T R O L D I S C H A R G E P R E S S U R E Condenser fans are co...

Страница 140: ...E A S E W A I T After the update is completed an automatic reboot will occur If an error occurred the following message will appear with the error code and no reboot will occur F L A S H C A R D U P...

Страница 141: ...ate and time be correct other wise the daily schedule will not function as desired if programmed In addition for ease of troubleshooting via the History printouts the day time and date should be corre...

Страница 142: ...al Remote Mode Unit Control Mode Return or Leaving Display Units English or Metric System Lead Lag Control Manual or Automatic Fan Control Mode Manual Override Mode Current Feedback Option Soft Start...

Страница 143: ...ork 1 to TB2 1 Network 1 to TB2 1 RS 232 connect to TB3 Network RX to TB3 TXD Network TX to TB3 RXD Network GND to TB3 GND See Figure 29 on page 144 for TB1 TB2 and TB3 locations In most cases communi...

Страница 144: ...RESS 1 41943 1 DE MODIFIER OFFSET 1 99 1 P1 BAUD RATE 1200 76800 4800 1200 4800 9600 19200 38400 76800 AUTO SELECTABLE P2 BAUD RATE 1200 57600 1200 1200 4800 9600 19200 38400 57600 SELECTABLE P1 P2 MA...

Страница 145: ...are version 04 C MMC 13 04 C MMC 14 04 or C MMC 16 04 or higher required for N2 protocol functionality BACnet and Modbus Communications Chiller data that can be read and modified using spe cific BACne...

Страница 146: ...Pa Pascals kPa Kilopascals PPM Part per Mil lion kJ kg Kilojoules per Kilogram 4 Water Cooled Scroll units use the same firmware as Air Cooled Scroll units ignoring Fan Control The table below shows t...

Страница 147: ...R410a and two system unit F C AV20 ADF 20 0020 X10 Signed nvoS2SuctTemp SNVT_temp_p Sys 2 Run Time Sec SYS 2 RUN TIME If two system unit Sec Sec AV21 ADF 21 0021 X10 Signed nvoS2RunTime SNVT_time_sec...

Страница 148: ...Low Suction Press Cutout Cooling LOW SUCT PRESS CUTOUT COOLING PSIG BARG AV34 ADF 34 0044 X10 Signed nvoLoSuctPrsOffC SNVT_press High Discharge Press Cutout HIGH DISCH PRESS CUTOUT PSIG BARG AV35 ADF...

Страница 149: ...wn 7 LowSuction Pressure 8 No Run Permissive 8 High Motor Current 9 No Cool Load 9 LLSV Not On 10 Anti Coincidence Timer Active 10 LowBattery Warning 11 Anti Recycle Timer Active 11 High Oil Temperatu...

Страница 150: ...inutes it will revert back to all local control values Table 20 on page 151 lists the control parameters These values are found under feature 54 in the E Link Gateway Transmitted Data After receiving...

Страница 151: ...15 SNVT_count_f 51 ADF 9 0009 x10 F C Sys 1 Suction Temperature EEV O O O O O P16 AV10 YT2_ S01_ P16 nvoYTS01p016 SNVT_count_f 51 ADF 10 0010 x10 F C Ambient Air Temperature S S S S S P17 AV11 YT2_ S0...

Страница 152: ...6 N A 0 1 0 1 Lead System 0 Sys1 1 Sys2 S S S S S P48 BV17 YT2_ S01_ P48 nvoYTS01p048 SNVT_switch 95 BD 17 0077 N A 0 1 0 1 Sys 1 Comp 3 Run S S S S S P49 BV18 YT2_ S01_ P49 nvoYTS01p049 SNVT_switch 9...

Страница 153: ...F 40 0050 x10 F C Sys 1 Discharge Temperature EEV O O O O O P77 AV41 YT2_ S01_ P77 nvoYTS01p077 SNVT_count_f 51 ADF 41 0051 x10 F diff C diff Sys 1 Discharge Superheat EEV O O O O O P78 AV42 YT2_ S01_...

Страница 154: ...02_ P25 nvoYTS02p025 SNVT_count_f 51 ADF 62 0119 N N N N N P26 AV124 YT2_ S02_ P26 nvoYTS02p026 SNVT_count_f 51 ADF 63 0120 N N N N N P27 AV125 YT2_ S02_ P27 nvoYTS02p027 SNVT_count_f 51 ADF 64 0121 x...

Страница 155: ...0142 N N N N N P69 AV133 YT2_ S02_ P69 nvoYTS02p069 SNVT_count_f 51 ADF 76 0143 N N N N N P70 AV134 YT2_ S02_ P70 nvoYTS02p070 SNVT_count_f 51 ADF 77 0144 N N N N N P71 AV135 YT2_ S02_ P71 nvoYTS02p07...

Страница 156: ...Low Suction Pressure No Run Permissive No Cool Load High Ambient Temperature Anti Vacuum Low Pressure Cutout Anti Recycle Timer Active Manual Override Suction Limiting Discharge Limiting Flow Switch O...

Страница 157: ...ystem after the lead system has run for five min utes See the section on Capacity Control for a detailed explanation of system and compressor staging 7 As the load decreases below setpoint the com pre...

Страница 158: ...ional compressors will be energized at a rate of once every 60 s if the chilled liquid temperature remains above the Setpoint High Limit and the chilled liquid temperature is dropping less than 3 F mi...

Страница 159: ...he setpoint high limit according to the chart at right with a maximum value allowed of 50 F see Figure 31 on page 159 If adding the setpoint adjust value to the setpoint high limit causes the setpoint...

Страница 160: ...chiller will be fully loaded when the return water temperature is equal to the Cooling Setpoint plus the Range The chiller will be totally unloaded all compressors OFF when the return water temperatur...

Страница 161: ...croprocessor starts the systems The microprocessor will sequence compressors load and unload systems according to Table 23 on page 160 The microprocessor will lead lag compressors within each circuit...

Страница 162: ...5 seconds When a fan stage is turned ON by pressure the on pres sure for the next stage is increased 20 psig and ramped back to the programmed on pressure over the next 20 s Typically standard ambient...

Страница 163: ...Figure 32 CONDENSER FAN LOCATIONS LD16764c QTC3040HE QTC3050HE QTC3070SE QTC3075SE QTC3110SE QTC3095SE QTC3120HE QTC3125SE QTC3140SE QTC3100HE QTC3130HE QTC3150HE QTC3160SE QTC3170HE 1 MF1 1 MF2 2 MF2...

Страница 164: ...DP PROGRAMMED FAN CONTROL ON PRESSURE AND FAN STAGES 1 AND 2 ARE ENERGIZED DP PROGRAMMED FAN CONTROL ON PRESSURE MINUS PROGRAMMED DIF FERENTIAL PRES SURE AND FAN STAGES 1 AND 2 ARE ENERGIZED TB7 8 and...

Страница 165: ...N PRESSURE AND FAN STAGES 1 AND 2 ARE EN ERGIZED DP PRO GRAMMED FAN CONTROL ON PRESSURE MINUS PRO GRAMMED DIFFERENTIAL PRESSURE AND FAN STAGES 1 AND 2 ARE ENER GIZED TB7 8 and TB7 9 and TB7 10 TB10 8...

Страница 166: ...load limiting involves closing both the Load Limit and PWM inputs The first stage of limiting is either 80 66 or 50 depending on the number of compressors on the unit The second stage of limiting is...

Страница 167: ...5 F 7 22 C Max Reset Value 20 F 11 11 C Input Signal 6 VDC English Reset 6 VDC x 20 F 10 New Setpoint 45 F 12 F 57 F Metric Reset 6 VDC x 11 11 C 10 New Setpoint 7 22 C 6 67 C 13 89 C Max Reset Value...

Страница 168: ...THIS PAGE IS INTENTIONALLY LEFT BLANK...

Страница 169: ...e respective output status shown For example SECTION 9 SERVICE AND TROUBLESHOOTING CLEARING HISTORY BUFFERS The history buffers may be cleared by pressing the HISTORY key and then repeatedly pressing...

Страница 170: ...tart timers for each system All val ues can also be changed using the UP and Down arrow keys but under normal circumstances would not be required or advised After the last start display the microproce...

Страница 171: ...SYS 1 Liquid Line Solenoid Valve TB7 4 SYS 1 Compressor 2 TB7 5 SYS 1 Compressor 3 TB7 7 SYS 1 Hot Gas Bypass Valve TB10 2 SYS 2 Compressor 1 TB10 3 SYS 2 Liquid Line Solenoid Valve TB10 4 SYS 2 Compr...

Страница 172: ...172 FORM QTC3 NM1 ISSUE DATE 08 03 2022 SECTION 9 SERVICE AND TROUBLESHOOTING Figure 33 MICROBOARD LAYOUT TB5 TB1 TB6 TB7 TB8 TB9 TB10 J14 J13 J12 J15 J11 J10 J9 J8 J7 J6 J5 J3 I O BOARD IPU BOARD JP1...

Страница 173: ...al input Typically voltages of 24 VDC to 36 VDC could be measured for the DC voltage on the digital inputs This voltage is in reference to ground The unit case should be sufficient as a reference poin...

Страница 174: ...r voltage readings that cor respond to specific liquid temperatures J6 1 drain shield connection 0VDC return Analog Inputs Pressure See the unit wiring diagram Pressure inputs are con nected to the mi...

Страница 175: ...ischarge pressures J9 7 5 VDC return J9 2 drain shield connection 0 VDC The suction transducers have a range from 0 psig to 400 psig 27 5 barg The output will be linear from 0 5 VDC to 4 5 VDC over th...

Страница 176: ...TB7 10 TB7 8 SYS 1 FAN 2 TB8 2 HEAT EXCH HEATER Data Logging to Flash Enabling Data Logging to Flash The user can enable data logging to an SD card in the unit setup mode When data logging is ENABLED...

Страница 177: ...me 20 S1 Operating Code x Sys 1 Operational Code 21 S1 Fault Code x Sys 1 Fault Code 22 S1 Suct Press psig x x Sys 1 Suction Pressure 23 S1 Act_Spc psig x x Sys 1 Actual Suction Pressure Cutout 24 S1...

Страница 178: ...d Valve Status 58 S2 Hot Gas x Sys 2 Hot Gas Bypass Solenoid Valve Status 59 S2 Fan Stage x Sys 2 Condenser Fan Stage 60 S2 Fan Speed x Sys 2 VSD Fan Speed VSD Fans 61 S2 Comp Seq x Sys 2 Programmed C...

Страница 179: ...o not connect the shield at the printer end of the cable Obtaining a Printout A printout is obtained by pressing the PRINT key on the keypad and then pressing either the OPER DATA key or HISTORY key T...

Страница 180: ...9 SERVICE AND TROUBLESHOOTING Figure 35 PRINTER TO MICROBOARD ELECTRICAL CONNECTIONS LD12723 TB3 3 TXD TB3 2 CTS TB3 5 GND TB3 2 RD 7 SG 5 CTS Chiller Microboard Printer Do not connect shield at prin...

Страница 181: ...place flow switch 4 Remote cycling device open 4 Check cycling devices connected to terminals 13 and 14 of the XTBC1 Terminal Block LOW SUCTION PRESSURE FAULT 1 Improper suction pressure cutouts adjus...

Страница 182: ...fy compressor is not overloaded 2 External overload tripped 2 Determine cause and reset 3 HPCO switch open 3 See High Press Disch Fault 4 Defective HPCO switch 4 Replace HPCO switch 5 Defective CR rel...

Страница 183: ...0 729001 Bitzer 11 00982 000 729009 Oil Analysis The oil used in these compressors is pale yellow in color POE oil If the oil color darkens or exhibits a change in color this may be an indication of c...

Страница 184: ...cuum nozzle or any other tool Hard objects or tools can cause mechanical damage to the coil material and protective coat ings on the coil The required cleaning procedure is different depend ing on the...

Страница 185: ...salt reducer solution approved by John son Controls Johnson Controls approves the use of RectorSeal brand GulfCleanTM salt reducer on Environment Guard Premium microchannel coils only Salt reducer sol...

Страница 186: ...THIS PAGE IS INTENTIONALLY LEFT BLANK...

Страница 187: ...65 2 188 86 7 76 168 8 192 88 9 78 172 4 196 91 1 80 176 200 93 3 82 179 6 204 95 6 84 183 2 208 97 8 86 186 8 212 100 0 88 190 4 216 102 2 90 194 220 104 4 92 197 6 224 106 7 94 201 2 228 108 9 96 20...

Страница 188: ...0 41 20 28 125 43 22 26 130 45 24 24 135 47 26 20 140 49 28 18 145 51 30 16 150 53 32 14 160 57 34 12 170 60 36 10 180 64 38 8 190 67 40 6 200 70 42 4 210 73 44 3 220 76 46 2 225 78 48 0 235 80 50 1 2...

Страница 189: ...us multiply by 5 9 or 0 5556 Example 10 0 F range x 0 5556 5 6 C range Table 36 SI METRIC CONVERSION MEASUREMENT MULTIPLY ENGLISH UNIT BY FACTOR TO OBTAIN METRIC UNIT Capacity Tons Refrigerant Effect...

Страница 190: ...New Freedom Pennsylvania USA 17349 Subject to change without notice Printed in USA Copyright 2022 ALL RIGHTS RESERVED Form QTC3 NM1 822 Issue Date August 3 2022 Supersedes QTC3 NM1 1021 1 800 524 1330...

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