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Carrier 19XR Series, Installation, Operating And Maintenance Instructions

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Carrier 19XR Series Installation, Operating And Maintenance Instructions Download Page 10

10

Fig. 7 — 19XR Pumpout System Wiring Schematic

a19-2447

LOW PRESSURE CONTROL
NC OPEN < 7 psia (-15.7 in. HG)
CLOSE > 9 psia (-11.6 in. HG)

HIGH PRESSURE

SAFETY

NC OPEN > 185psig

CONTROL POWER

TRANSFORMER

XFMR-1

69 VA

PUMP OUT

COMPRESSOR

CRANKCASE HEATER

240-600v

27-40 WATT

COPELAND PN 081-0031-03

WHT

RED

ORN

HIGH LEVEL
GAGE ALARM
(NC-OPEN AT 
90% STORAGE 
TANK LEVEL)

WHT

X2

C

5

4

X2

X2

1

X1

FU3

0.5A

H1

H4

FU1

FU2

0.25A

0.25A

GND

2

2

3

SS-1

OFF

AUTO   ON

2

L2

L1

8

7

HTR-1

MTR-1

2  OL

2  OL

2  OL

C

C

C

LEVEL GAGE

ALARM SWITCH

NO

NC

LEGEND

C

— Contactor

FU

— Fuse

GND — Ground
HTR

— Heater

MTR — Motor
NC

— Normally Closed

OL

— Overload

SS

— Selector Switch

Fig. 8 — Pumpout Unit Wiring Schematic

a19-2448

LOW PRESSURE CONTROL
NC OPEN < 7 psia {-15.7 in. HG}
CLOSE > 9 psia {-11.6 in. HG}

HIGH PRESSURE

SAFETY

NC OPEN > 185psig

CONTROL POWER

TRANSFORMER

XFMR-1

69 VA

PUMP OUT

COMPRESSOR

CRANKCASE HEATER

240-600v

27-40 WATT

X2

C

5

4

X2

X2

1

X1

FU3

0.5A

H1

H4

FU1

FU2

0.25A

0.25A

GND

2

2

3

SS-1

OFF

AUTO   ON

2

L2

L1

8

7

HTR-1

MTR-1

2  OL

2  OL

2  OL

C

C

C

LEGEND

C

— Contactor

FU

— Fuse

GND — Ground
HTR

— Heater

MTR — Motor
NC

— Normally Closed

OL

— Overload

SS

— Selector Switch

Summary of Contents for 19XR Series

Page 1: ...meplate DO NOT USE air for leak testing Use only tracer gases and dry nitrogen DO NOT VALVE OFF any safety device BE SURE that all pressure relief devices are properly installed and functioning before operating any machine WARNING Failure to follow these procedures may result in personal injury or death DO NOT USE TORCH to remove any component System contains oil and refrigerant under pressure To ...

Page 2: ... 0 kPa before breaking any refrigerant connection CAREFULLY INSPECT all relief devices rupture discs and other relief devices AT LEAST ONCE A YEAR If machine operates in a corrosive atmosphere inspect the devices at more frequent intervals DO NOT ATTEMPT TO REPAIR OR RECONDITION any relief device when corrosion or build up of foreign material rust dirt scale etc is found within the valve body or m...

Page 3: ...e pumpout unit Special isolation is unnecessary Contact surface and dimensions for the pumpout unit are given in Fig 3 Table 1 Positive Pressure System Assembly Numbers R 134a LEGEND NOTES 1 All storage vessels are 185 psig 1276 kPa designs per the ASME Ameri can Society of Mechanical Engineers Boiler Pressure Vessel Code Sec tion VIII Division 1 2 All units above are shipped with a 15 psig 103 kP...

Page 4: ...ied may result in serious damage to the assembly and personal injury Rigging equipment and procedures must be adequate for assembly See Tables 2 and 3 for weights These weights are broken down into pumpout unit and storage tank weights For the complete assembly weight add all components together Fig 1 19XR Positive Pressure Storage System CONTACTOR TERMINAL STRIP FUSES TRANSFORMER SWITCH 19XR PUMP...

Page 5: ...75 629 28 45 723 MOUNTING HOLES ELECTRICAL CONNECTION OPTION LIST TRADE SIZE in QTY LOCATION 1 2 1 TOP 3 4 1 BOTTOM 1 1 MIDDLE 11 4 1 MIDDLE a19 2445 Fig 4 Rigging Guide NOTES 1 Each chain must be capable of supporting the entire weight of the machine 2 Minimum chain length 28 ft3 0 79 m3 tank 10 0 3098 mm 52 ft3 1 47 m3 tank 15 6 4724 mm STORAGE TANK SIZE CENTER OF GRAVITY DIMENSIONS APPROX ft in...

Page 6: ...f devices are manifolded the cross sectional area of the relief pipe must at least equal the sum of the areas required for individual relief pipes 2 Provide a pipe plug near outlet side of each relief device for leak testing Provide pipe fittings that allow vent pip ing to be disconnected periodically for inspection of valve mechanism 3 Piping to relief devices must not apply stress to the device ...

Page 7: ...n the pumpout unit see certified drawings 5 Conduit knockout is located on the side of the control box 6 Storage tank weight 2334 lb 1059 kg TOP VIEW FRONT VIEW 1 0 3 4 324mm 3 8 MALE FLARE RELIEF VALVE CONN 1 2 DIA K O ELECTRICAL CONN PUMPOUT POWER FAR SIDE 3 11 3 8 1203mm 3 9 1143mm 0 3 1 4 83mm 0 10 254mm 1 7 7 8 505mm 4 4 1 4 1327mm 0 2 3 4 70mm 0 7 15 16 202mm FARSIDE 28 CU FT 0 8 CU METER ST...

Page 8: ...TH SIDES 3 4 NPT PUMPOUT CONDENSER WATER OUTLET CONN 1 2 MALE FLARE VAPOR CONN 3 4 NPT PUMPOUT CONDENSER WATER INLET CONN VAPOR 1 0 3 4 324mm 3 8 MALE FLARE RELIEF VALVE CONN 1 2 DIA K O ELECTRICAL CONN PUMPOUT POWER FAR SIDE 0 0 15 16 202mm FARSIDE 0 2 3 4 70mm 4 3 1 4 1302mm 4 1 1225mm 0 3 1 4 83mm 0 10 254mm 1 8 3 4 527mm 4 8 1 4 1429mm Fig 5 Storage Tank with Pumpout Unit cont NOTES 1 Denotes ...

Page 9: ... STORAGE TANKS GENERAL PIPING CONNECTION SIZES NOTES 1 The field supplied tubing is to be 1 2 in OD tubing min and must be arranged and supported to avoid stresses on the equip ment transmission of vibrations and interference with routine access during the reading adjusting and servicing of the equip ment If the distance from the chiller to the pumpout unit is over 50 ft then 7 8 in OD tubing min ...

Page 10: ... 1 MTR 1 2 OL 2 OL 2 OL C C C LEVEL GAGE ALARM SWITCH NO NC LEGEND C Contactor FU Fuse GND Ground HTR Heater MTR Motor NC Normally Closed OL Overload SS Selector Switch Fig 8 Pumpout Unit Wiring Schematic a19 2448 LOW PRESSURE CONTROL NC OPEN 7 psia 15 7 in HG CLOSE 9 psia 11 6 in HG HIGH PRESSURE SAFETY NC OPEN 185psig CONTROL POWER TRANSFORMER XFMR 1 69 VA PUMP OUT COMPRESSOR CRANKCASE HEATER 24...

Page 11: ...oor installations or installations with high tem perature differentials between the storage tank and the chiller may require additional consideration In some instances it may be necessary to add auxiliary heat to one of the vessels or to in sulate the storage tank at job sites where high ambient tempera ture or sun load make it difficult to reduce the temperature and pressure in the tank Outdoor i...

Page 12: ...mpout compressor oil heater must be on whenever any valve connecting the pumpout compres sor to the chiller or storage tank is open Leaving the heater off will result in oil dilution by refrigerant and can lead to compressor failure If the compressor is found with the heater off and a valve open the heater must be on for at least 4 hours to drive the refrigerant from the oil When heating the oil t...

Page 13: ...pumpout valves 3 and 4 and open valves 2 and 5 f Turn on pumpout condenser water g Run pumpout unit in auto until the vacuum switch is satisfied This occurs approximately at 15 in Hg vacuum 48 kPa absolute or 7 psia removing the residual refrigerant vapor from the recovery tank and condensing to a liquid in the chiller h Close valves 1A 1B 2 5 6 i Turn off pumpout condenser water Transfer Refriger...

Page 14: ...igerant transfer c Open valves 1A 1B 2 5 and 8 d Turn on pumpout compressor generating a refrig erant pressure differential of 10 to 20 psi 69 to 138 kPa to push liquid out of the chiller cooler vessel e Slowly open valve 7 to allow liquid transfer Rapid opening of valve 7 can result in float valve dam age f When all liquid has been pushed into the chiller condenser vessel close valve 8 g Turn off...

Page 15: ...lve 4 gradually increasing pressure in the evacuated vessel to 35 psig 241 kPa e Leak test to ensure chiller vessel integrity f Open valve 4 fully for cooler and condenser pres sure equalization vapor equalization g Close valves 1A 1B 2 and 4 2 Liquid equalization a If refrigerant is stored in cooler install a charging hose between valves 7 and 8 and open both the valves and any other isolation va...

Page 16: ...ge tank into a container Dispose of contaminants safely VALVE 1A 1B 2 3 4 5 6 7 10 11 CONDITION C C C C C C C C C a19 2434 6 10 7 1a 11 8 1b 5 3 4 2 PUMPOUT COMPRESSOR RELIEF VALVE PUMPOUT CONDENSER CHECK VALVE CONDENSER COOLER STORAGE VESSEL OIL SEPARATOR Fig 10 Typical Optional Pumpout System Piping Schematic with Storage Tank NOTES 1 Maintain at least 2 feet 610 mm clearance around storage tank...

Page 17: ...al close service valves 2 3 4 and 5 and run the pumpout compressor in AUTOMATIC until the vacuum switch is satisfied and the compressor shuts off Move pumpout selector switch to OFF and turn off all power to unit prior to removing compressor unit from pumpout as sembly frame and connecting tubing Service valves 2 3 4 and 5 remain closed while compres sor is removed Put compressor back in place Use...

Page 18: ...tube for pinches Set control as required Discharge valve partially closed Open valve Air in system Purge system Condenser scaled Clean condenser Condenser water pump or fans not operating Start pump or fans Unit Operates Too Long Isolation valves partially open Close valves System Noises Piping vibrations Support piping as required Check for loose pipe connectors Insufficient compressor oil Add oi...

Page 19: ......

Page 20: ...ht to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 531900050 01 Printed in U S A Form 19XR CLT 16SI Pg 20 5 17 Replaces 19XR 6SI Carrier Corporation 2017 ...

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