AC375

Model: AC375 Recovery/Recycling/Recharging Recovery/Recycli ng/Recharging Unit

Trusted by over 1 million members

Try Scribd FREE for 30 days to access over 125 million titles without ads or interruptions! Start Free Trial Cancel Anytime.

























AC375 Service Service Manual

Disclaimer The information contained in this manual was considered accurate at the time of printing. Any corrections should be directed directed to:

SPX Corporation 6475 Technology Drive Kalamazoo Kala mazoo,, MI 49009 49009,, USA Phone Pho ne 269 269-54 -544-5 4-5814 814 Fax 269- 544- 5832

This manual was made possible by the combined efforts of a number of individuals in the following departments: Technical Support, Engineering, Engineering, Tech Tech Pubs Pubs,, and Sales. I wish to express my gratitude to everyone that contributed to this manual. — Scott Parde

























AC375 Servic Service e Manual

TABLE

OF

CONTENTS

Safety Warnings ................... ....................................... ......................................... ......................................... ....................................... ................... 4

General Information .................. ...................................... ........................................ ........................................ .................................... ................ 5 AC375 Featu Features res ................ ................................. .................................. .................................. .................................. ................................... ............................. ........... 6 AC375 Views ............... ................................ .................................. .................................. .................................. .................................. .................................. ................... 7 Operating Guidelines ............... ............................... ................................ ................................ ................................ ................................ ........................ ........ 8 Unit Specific Specifications ations ............... ................................ .................................. .................................. .................................. .................................. ......................... ........ 10 Maintenance Schedule ............... ................................ ................................. ................................. ................................. ................................ ................... ... 11 Depressurizing Depressurizi ng the Unit .......... ........................... ................................. ................................. .................................. ................................. ....................... ....... 12

Parts & Components ................. .................................... ...................................... ..................................... ..................................... ................... 15 AC375 Unit Components ................................................................................................... 16 Plumbing Plumbin g Diagram............................. Diagram.............................................. .................................. .................................. .................................. ............................ ........... 18 Plumbing Diagram Parts List ................ ............................... ............................... ............................... ............................... ............................. ............. 19 Componen Comp onentt Assem Assemblies blies ................ ................................. ................................. ................................. .................................. .................................. ................. 20 AC375 Main Component Descriptions ............................................................................. 30 Alphabetical Alphabeti cal Parts List ............... ................................ .................................. .................................. .................................. .................................. ................... 32

Diagnostics ................... ....................................... ......................................... ......................................... ......................................... .......................... ..... 43 Functional Check ................ Functional ................................. .................................. .................................. .................................. .................................. .......................... ......... 45 Troubleshooting ................................................................................................................ 46 Service Procedures and Calibrations ............. .......................... ........................... ................................ ................................... ................... .. 52 AC375 System Wiring .......... ........................ ............................... .................................. .................................. .................................. ............................ ........... 65 AC375 Compon Component ent Wiring ................. .................................. .................................. .................................. .................................. ............................ ........... 66 AC375 Wiring Harn Harnesses esses .................. ................................... .................................. .................................. .................................. ............................. ............ 68 Componentt Identificatio Componen Identification n ................. .................................. .................................. ................................... ................................... .......................... ......... 72 Componentt Application Chart ................. Componen .................................. .................................. .................................. .................................. ..................... .... 73 Flow Diagrams ................. .................................. .................................. ................................. ................................. .................................. .............................. ............. 74

Service Bulletins .................. ....................................... ......................................... ......................................... ....................................... .................. 81

Labor Rates ................. ..................................... ........................................ ........................................ ........................................ ............................. ......... 85

























AC375 Servi Service ce Manual

SAFETY WARNINGS It is extremely important to follow the instructions in this this manual. DO NOT atattach any hoses or accessories until prompted by the unit. Improper setup and failure of the unit will result.

Use only ROBINAIR Designated Replacement Components when servicing your equipment. Refer to the operator’s manual or this service manual for correct replacement part number(s).

Always wear eye protec Always protection tion and protec protec-tive clothing when working with refrigerants. Refrigerant can cause injury. Read and follow all warnings in the operator’s manual and this service manual before operating the unit.

When replacing components, make certain the new parts are connected exactly as your instruction sheet directs you to do. If an instruction sheet was not included, connect the replacement part just like the original. Mark or label wire and plumbing disconnections so replacing the new parts will confirm the previous configuration.

Disconnect hoses and tubes with extreme caution as they may contain liquid refrigerant under pressure. Always disco disconnec nnectt the unit from the power source before making any repairs or replacements to the components. Risk of electrical shock! Avoid the use of extension exten sion cords c ords beb ecause the extension cord may overheat. However, if you must use an extension cord, the cord must be No. 14 AWG minimum and should not exceed more than 25 feet in length. Always depressurize the machine before servicing or replacing any components. Pressurized tanks contain liquid refrigerant. Overfilling of the tank may cause violent explosion and possible injury or death. Do not recover refrigerants refrigerants into a non-refillable storage container. Federal regulations require refrigerants to be transported only in containers meeting DOT spec. 4BW or DOT spec. 4BA. Be sure that the refrigerant level in the tank does not exceed 80% of the tank volume. Failure to monitor monitor the level could result in excessive hydrostatic pressure, causing physical injury or

Use this unit only with either R-134a OR R-12 refrigerant. refrigerant. The user must dedicate the unit to only one type of refrigerant. Do not attempt to adapt the unit for another refrigerant. Do not mix mix refrigerant types through a system or in the same container; mixing of refrigerants will cause sever damage to the unit and the vehicle air conditioning system. Avoid bre Avoid breath athing ing A/ A/C C ref refrig rigera erant nt and lub lubriricant vapor or mist. mist. Exposure may cause personal injury, especially to the eyes, nose, throat, and lungs. lungs. Use the unit in locations with mechanical ventilation that provides at least four air changes per hour. If accidental system discharge occurs, ventilate work area before resuming service. Keep hands away from moving parts. Do not use compressed air to pressure test or leak test the unit or vehicle A/C system. syste m. Some mixtures of air and refrigerant have been shown to be combustible at elevated pressures. These mixtures mixtures are potentially dangerous and may result in fire or explosion causing injury or property damage.

























AC375 Servi Service ce Manual

1

General Information

GENERAL INFORMATION

AC375 Features ...................................................... .......................................................................... ......................................... .......................... ..... 6 Features of the AC375 ................ ................................. ................................. ................................. .................................. .................................. ................... .. 6 Additional Features ................ ................................ ............................... ............................... ................................ ................................ ........................... ........... 6

AC375 Views .................... ........................................ ........................................ ........................................ ....................................... ......................... ...... 7 Front View ................ ................................. .................................. .................................. ................................. ................................. .................................. ..................... .... 7 Side View ................. .................................. .................................. .................................. .................................. .................................. ................................. .................... .... 7

Operating Guidelines ................... ....................................... ........................................ ........................................ ................................ ............ 8 Using the Control Panel ................ ................................ ................................. .................................. .................................. ................................. ................ 8 Display Screen Messages............................. Messages.............................................. .................................. .................................. ................................. .................. 9 Symbol Definiti Definitions ons............... ................................ .................................. .................................. .................................. .................................. ......................... ........ 9

Unit Specifications Specificat ions ................... ..................................... ..................................... ...................................... ...................................... ..................... 10

Maintenance Schedule ..................... ......................................... ......................................... ......................................... .......................... ...... 11

Depressurizing the Unit .................... ........................................ ......................................... ......................................... .......................... ...... 12

























General Information


AC375 FEA F EATURES TURES The AC375 recovers, recycles, and recharges vehicle refrigerant, quickly and accura tely in one simple hookup. It is compatible with existing service equipment and standard service procedures. The AC375 is configurable to recover, recycle, and recharge either R-134a or R-12 refrigerant. Once configured to R12 or R134a, the unit should be used only with that refrigerant.

Features of the AC375 √ Oil Drain — The display reminds you to drain the system oil captured during recovery. Graduations on the container clearly show you how much oil needs to be replaced. √ Oil Inject — System prompts user to inject oil before charge. O-ring on oil reservoi reservoirr provides visual reference on graduated container. √ Electronic Scale — The scale is mounted internally for protection, and has a dampening mechanism that protects against impact shocks, such as movement over rough surfaces. The scale weighs recovered refrigerant and charges by weight for greatest accuracy. NOTE: At idle, the display reflects amount of refrigerant that can be recovered. √ Internal Storage Vessel — Refrigerant is recovered into and charged out of this vessel, which is permanently perman ently mount mounted ed to the electr electronic onic scale for continuing reliability. contain s so√ Internal Manifold — Block manifold contains lenoids that control refrigerant flow, reducing the possi pos sibil bilit ity y of lea leakin king g con connec necti tions ons..

√ Maintenance Prompts — System prompts user to change vacuum vacu um pump oil (10 hours) and filter-drier (150 lbs) when needed.

Additional Features • High High and and low low side side gauge gaugess are are mounte mounted d at an ang angle le that’s easy to read. • Ergono Ergonomic mic Des Design ign tha thatt makes makes the the cabin cabinet et easy easy to to maneuver. • Robina Robinair ir Cool Cool Tech Tech vacu vacuum um pump pump for for fast fast,, thorthorough pull-down. • HeavyHeavy-dut duty y compre compress ssor or pulls pulls fr from om both both high high and and low sides during recovery (when both manifold valves are open). • Refrig Refrigera erant nt recyc recyclin ling g meets meets or or exceed exceedss SAE SAE J2210. • Sel Select ect poun pounds ds or or kilog kilogram ramss thro through ugh the menu menu..




























General Information

AC375 VIEWS Front View Control Panel Shelf for tools and accessories

Vacuum Pump Oil Injector Bottle Oil Drain Bottle

Internal Storage Vessel Large Wheels for mobility across air lines, power cords, grates

Locking Casters

Figure 1.2 - Front View

Side View High-Side Hose Low-Side Hose

Convenient Handle for moving unit

























General Information


OPERATING OPERA TING GUIDELINES Using the Control Panel ISV Pressure Gauge

Oil Inject Button

Shows the pressure inside the internal storage vessel.

Injects new oil into the A/C system on the high side.

Digital Screen

Oil Drain Valve Valve

Displays operational information.

Drains the A/C system’s oil collected in the system oil separator into the oil drain bottle.

High-Side Gauge Menu Key

Shows the A/C system’s high-side pressure.

Selects menu options.

Low-Side Gauge Up Arrow

Shows the A/C system’s low-side pressure.

Adjusts operating parameters.

High-Side Panel Valve Valve Controls the flow between the A/C system’s high side and the unit.

Down Arrow

Low-Side Panel Valve

Start/Stop Key

Controls the flow between the A/C system’s low side and the unit.

Starts, stops, or exits a function.

Low-Side Gauge

Adjusts operating parameters.

High-Side Gauge

Display Screen

Menu Key Low-Side


























General Information

Display Screen Messages During normal operation, any of the following messages may appear on the display screen. If a message appears, immediately take the appropriate action.

CHANGE FILTER

CHANGE OIL

DRAIN OIL

HIGH PRESSURE

OVERLOAD

This message appears after every 150 lbs. (68.0 kg) of refrigerant has been recovered, indicating that the filterdrier needs to be replaced. This message appears after every 10 hours of vacuum pump use.

This message appears after recovering refrigerant from an A/C system.

This message appears if the compressor discharge pressure rises to 363 psig (25 bar) or higher. Let the unit cool down for 30 minutes. minutes. Then press the MENU key and the UP arrow key to clear the message from the display screen. This message appears if the weight of the internal storage vessel reaches 43 lbs. (19.5 kg), or if the unit’s weight scale is damaged, disconnected, or out of calibration. Immediately remove refrigerant from the internal storage vessel. ves sel. Then press press the MENU MENU key and and the UP UP arrow key to clear the message from the display screen. If it does not clear, scale replacement will be necessary.

























General Information


UNIT SPECIFICA SPECIFICATIONS TIONS AC375 Unit U nit - General General Information 220 - 230V *

Volts:

50 - 60 Hz

Frequency:

7.0A

Amps:

R-134a or R-12 98 Class III, ARI 98 Class IV High - 382 psig Low - 171 psig 0 to 140°F (-18 to 60°C)

Refrigerants: Design Pre ssure: ure : Storage Storage Temperature Range: Operating Temperature Range:

50 to 120°F (11 to 49°C)

Recycling Recycling Filter-Drier Filter-Drier

43 cu. In. in-line (710 cc)

Refrigerant Container / Tare Weight:

30 lbs. (14 kg) / 17.50 lbs. (8 kg)

Unit Height:

50 in. (127 cm)

Unit Width:

34 in. (86.4 cm)

Unit Depth:

23 in. (58.4 cm)

Shipping Weight:

225 lbs. (102 kg) UL Certified SAE-J-2210

Certified:

Hermetic Hermetic Compressor C ompressor Volts:

230V *

Frequency:

60 Hz

Running Amps: Locked Rotor Amps: Displacement: Capacity (BTU/HR): Oil Charge Capacity (Initial/Recharge):

8.4A 19.0A .55 CU IN 5821 13.5 oz/11.8 oz (400 cc/350 cc)

























General Information


MAINTENANCE SCHEDULE T e st R e q u i r e d C h a n g e va c u u m p u m p o i l .

Change the Filter/Drier. Filter/Drier.

R e c o m m e n d e d F re q u e n c y E ve ry 1 0 h o u rs o f o p e ra t i o n A fte r rec overi ng 15 0 lb s . (68 k g) of refrig refr ig era nt or after recovering refrigerant from a burnedout system.

C h e c k S c a le .

M onthly

C h e c k fo r L e a k s .

M onthly

C l e a n (va c u u m ) c o n d e n s e r p a n e l .

M on t h l y

C le a n c a b i n e t a n d c o n t ro l p a n e l .

M onthly

Check c asters and wheels for for proper proper operation. Lubricate bearings bearings and brake c omponents if necessary.

Monthly

In s p e c t h o s e s a n d p o w e r c o rd fo r c u t s a n d a b ra s i o n s .

Da ily

Due to normal wear and tear, the AC375 requires regular maintenance to guarantee safe operation and optimum performan perf ormance. ce. The above above chart provi provides des a sched schedule ule of the recom recommende mended d main maintenan tenance ce task tasks. s. Periodically, check high and an d low side couplers for o-ring damage and leaks.



























General Information


DEPRESSURIZING THE UNIT Always wear safety goggles when working with refrigerants. Contact with refrigerant can cause eye injury. Disconnect lines and hoses with extreme caution! Pressurized refrigerant may be present in lines and hoses. Always point lines and hoses away from you and anyone nearby. Always unplug the station from the power source before removing any of the shrouding or beginning any service work.

Depressurization Procedure 1. Disconn Disconnect ect the the high high and low low side side servi service ce hoses hoses from vehicle (or low side hose from source tank) and make sure the coupler valves are closed. 2. On the the contr control ol panel panel,, open open both both high high and low side side panel pan el val valves ves..

7. Switch ON the test cord’s power switch. 8. Start the auxili auxiliary ary recover recovery y unit and allow allow it it to pull the unit into a 13” vacuum. 9. When the unit unit has pulle pulled d down down to this leve level, l, switc switch h OFF the test cord’s power switch.

3. Rem Remove ove all all shr shroud ouding ing from from the unit unit.. 4. With With an adapter adapter (163 (16301) 01) conne connect ct an auxili auxiliary ary rerecovery unit to the low side service hose from the

10. Turn OFF the the auxilia auxiliary ry recove recovery ry unit unit and disco disconnnect it from the service hose.


























General Information

NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________

























General Information



























2

Parts & Components

PARTS & COMPONENTS

AC375 Unit Components .................. ....................................... .......................................... ......................................... ......................... ..... 16

Plumbing Diagram and Parts List .................. ..................................... ....................................... .................................. .............. 18

Component Assemblies .................... ........................................ ......................................... ......................................... .......................... ...... 20 Control Panel Assembly ................. Control .................................. .................................. .................................. .................................. ............................... .............. 20 Base Asse Assembly mbly ............... ................................. ................................... .................................. .................................. .................................. .............................. ............. 21 Internal Tank Assembly ............. ............................. ................................. .................................. .................................. ................................. .................... .... 22 Scale Assembly Assembly................ ................................. .................................. .................................. .................................. ................................... ............................. ........... 23 Vacuum Vacu um Pump Assembly .................. ................................... .................................. .................................. .................................. ............................. ............ 24 Compressor Assembly (Cubigel) ......... .................. .................. ................... ................... .................. .................. ................... ................... ............ ... 25 Compressor Oil Return Assembly .................................................................................... 26 Expansion Valve (Constant Pressure Valve) ................................................................... 26 System Oil Separator Assembly ................. ................................. ................................ ................................. ................................. .................... .... 27 Solenoid Manifold Assembly 230V ............... ................................ ................................. ................................ ................................. ................... 28 Valve Val ve & Gauge Manifold Assembly ............... ................................ .................................. .................................. ................................ ............... 29

























Parts & Components

AC375 UNIT COMPONENTS

SEE DETAIL H

SEE DETAIL B




























Parts & Components


SEE DETAIL C

DETAIL C

























Parts & Components

PLUMBING DIA DIAGRAM GRAM

E O L T G N G A N I T ° I T 5 F 4 U T R


























Parts & Components


PLUMBING PLU MBING DIAGRAM DIAGRAM PARTS PARTS LIST No.

P art No.

Qty.

Des cription

1

RA19479

8

2

120165

30"

TUBING, 3/8 O.D.

3

120165

30"

TUBING, 3/8 O.D.

4

121773

24"

TUBE, NYLON, 1/8 OD X . 070 ID

5

68320

1

ENVIRO-GUARD SERVICE HOSE - RE D

6

68220

1

ENVIRO-GUARD SERVICE HOSE - BLUE

O-RING, PA PA RKER #5-124 NEOP RENE

























Parts & Components


COMPONENT ASSEMBLIES CONTROL PANEL ASSEMBLY 518707

























Parts & Components


BASE ASSEMBLY 122206

1

2



























Parts & Components


INTERNAL TANK ASSEMBLY RA19920

























Parts & Components


SCALE ASSEMBLY RA19603

























Parts & Components


VACUUM PUMP ASSEMBLY 519274 (220V)

























Parts & Components


COMPRESSOR ASSEMBLY (CUBIGEL) RA19868 (230V)

























Parts & Components


COMPRESSOR OIL SEPARATOR ASSEMBLY 518464















































































































































































































































































































































































































































































































































































































































































































































Diagnostics


Snubber Kit for the AC375 (RA19918) Unplug the station before beginning service work. Incorrect use or connections can cause electrical shock. Wear safety goggles when working with refrigerants. Refrigerants can cause eye injury. Disconnect hoses using extreme caution! Pressurized refrigerant may be present in hoses. Point hoses away from you and anyone nearby.

INSTRUCTIONS This instruction sheet outlines the procedure to install snubbers on an AC375 Refrigerant Recovery, Recycle, and Recharge Unit. 1. Discon Disconnect nect the the AC375 AC375 from from the the power power sourc source. e. 2. Rem Remove ove the shr shrouds ouds fro from m the the unit unit..

Three-Solenoid Manifold

Factory installation of snubbers started at serial number 011260, date code 05/04. All units prior to this date or serial number should be checked for snubbe snubberr inst installat allation. ion.

Snubber Installation Locations 3. Locate Locate the thre three-s e-sole olenoi noid d manifol manifold d inside inside the unit. 4. Rem Remove ove the the two orang orangee wires wires from from the the left-m left-most ost solenoid. 5. Push one piggy piggyback back snub snubber ber assem assembly bly onto the electrical connections of the coil. 6. Repl Replace ace the wir wires es by by pushin pushing g them them onto onto the piggyba pig gyback ck conn connecto ectors. rs. 7. Remo Remove ve the the two gray wir wires es from from the the rightright-mos mostt solenoid, push one piggyback snubber assembly onto the electrical connections connec tions of the coil, and replace the wires by pushing them onto the piggyba pig gyback ck conn connecto ectors. rs.

ISV Solenoid


























8. Locate Locate the the solen solenoid oid on on top of the the inter internal nal storage vessel (ISV). 9. Rem Remove ove the the two two purple purple wir wires es from from the ISV ISV solenoid, push one piggyback snubber assembly onto the electrical connections connec tions of the coil, and replace the wires by pushing them onto the piggyba pig gyback ck conn connect ectors ors..

Diagnostics

Compressor Relay

Vacuum Pump Relay

10. Locat Locatee the vacu vacuum um pump pump rela relay. y. 11. Unpl Unplug ug the brown brown and blue blue wires wires that that go into the vacuum pump cord from this relay. 12. Usin Using g a pair pair of wire wire cutte cutters, rs, cut cut the the faston faston connector from both wires. Cut close to the faston connector so a minimum amount of wire is removed. 13. Stri Strip p the insul insulatio ation n back about 3/8" on on both wires. 14. Twis Twistt one lead lead wire wire from from the snub snubber ber with with the the blue wire wire.. Crim Crimp p a fast faston on onto the twis twisted ted wire wiress as shown below. 15. Twis Twistt the the other other snubber snubber lead wir wiree with with the brown wire, and crim crimp p a fast faston on onto the twis twisted ted wires as shown below. 16. Inst Install all the the brown brown and blue blue wires wires onto onto the relay relay.. (Polarity of the wires is not important.)

17. Locate Locate the com compre presso ssorr relay relay.. 18. Remov Removee the brow brown n and blue wire wiress that that connect connect to the compressor. 19. Usin Using g a pair pair of wire wire cutte cutters, rs, cut cut the the faston faston connector from both wires. Cut close to the faston connector so a minimum amount of wire is removed. 20. Stri Strip p the ins insulat ulation ion back back about about 3/8" on both both wires. 21. Twis Twistt one lead lead wire wire from from the the snubber snubber with with the the blue wire wire.. Cri Crimp mp a fast faston on onto the twi twisted sted wire wiress as shown below. 22. Twis Twistt the othe otherr snubber snubber lead wire with the brown wire wire,, and crim crimp p a fast faston on onto the twis twisted ted wires as shown below. 23. Inst Install all the the brown brown and blue blue wires wires onto onto the the relay. relay. (Polarity of the wires is not important.) 24. Rein Reinsta stall ll the the shrouds, shrouds, and and run the the AC375 AC375 unit through charge, recover, and vacuum to verify operation.

























Diagnostics


NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________

























AC375 Service Manual

Diagnostics

AC375 SYSTEM WIRING

























Diagnostics


AC375 COMPONENT WIRING

IEC RECEPTACLE

POWER SWITCH

OIL SEPARATOR ASSEMBLY

CIRCUIT BREAKER

FAN

ISV ASSEMBLY



























Diagnostics


SCALE

SOLENOID BLOCK ASSEMBLY

VACUUM PUMP RELAY

VACUUM PUMP

COMPRESSOR RELAY

























Diagnostics

AC375 WIRING HARNESSES Power Harness (519227)

5 6 s s 5 6 o o s P P s o o y y P P a l a y y l e e l a l a : R R e e O p p R R T m r r S m u u o o T P P s s C m s s e e E m u r r N u u u p p N c c m n n O a a m o o a a C V V C C F F

) 7 2 2 # 9 R 1 O 5 ( T 7 8 9 0 1 C 6 1 1 1 1 2 2 5 E 7 N 3 N C O A C S S E 1 3 N s s R 0 o o d A 1 P P u t . h H S n h c c o t i t i d R C E : 1 n w w u s S S O P o r s W T r e e e r e r r G k n O S d t a r u u P T a a s s n o e r H s s C B e n B 6 e E l r e r o t o i P P N t r p u 7 N n m c 1 h h r 3 g i g O o o i 2 i C C C C 5 H H # R O T C 1 1 2 3 4 5 E P 1 1 1 1 1 N N O C


























Diagnostics


Output Harness (519228)

d d

i i : d i d i d d o o o i i n n O o n n o o l e e T l e e n n o l o e l e S o l o l T S S o o S S e C m S S e E m e g r g r u e N u g g u u u u r r P P N c c a a r r ) a a h h i i 8 O 2 C V V C C A A 2 # 9 R 1 5 O ( T 7 8 9 0 1 C 6 5 E 4 4 4 4 5 5 7 N 3 N C O A C

S S E N 7 8 R 7 8 s s A o o s s P P H o o y y P P T a l a y y l U : 3 l a a e e d i d i R R o o P O P e l e n p p n T T d R R e l e r r r m m l U S a o o u u o o O T o s s P P S S

s r r C B s m m e e e E l r e r u u v o N t r p p u u o v o N n m c c c c O o o m o a a e e C C C C V V R R # R O T C 3 0 1 2 3 4 5 E P 4 4 4 4 4 4 N N O C

























Diagnostics


Wire Harness, IEC (519226)

WI RE HARNESS, HARNESS, IEC (519226) CONNECTOR CT OR # 1 2 3 4 5 6

CONNECTS CONNECTS TO: IEC Rec eptac le - Line IEC Rec eptac le - Neutral IEC Rec eptac le - Ground Main Ground Stud Sw itc h 2 Sw itc h 1

Wire Harness, Switch (523176)

WIRE WI RE HARNE HARNESS, SS, SW ITCH (523176) (523176)

























Diagnostics


Compressor/Fan Ground Wire (122419)

COMPRESSOR / FAN GROUND (122419) CONNECTOR CT OR # 75 76 77

CONNECTS CONNECTS TO: Component Ground Stud Compr es s or Ground Fan Ground

Wire Harness, Compressor (519229)

WI RE HARNESS, HARNESS, COMPRESSOR (519229)



























Diagnostics


COMPONENT IDENTIFICA IDENTIFICATION TION

AIR PURGE SOLENOID

S2 VACUUM SOLENOID

S1

S3

RECOVERY SOLENOID

S2

S1

CHARGE SOLENOID

S4

S3

SOLENOID MANIFOLD BLOCK

AIR PURGE SOLENOID

























Diagnostics


Component Compon ent Applicati Application on Chart Cha rt Re cove r Recovery Solenoid (1) Vacuum Solenoid (2)

V acuum

Air Pur ge

ON ON

Charge Solenoid (3)

ON

Air Purge Solenoid (4) Vacuum Vacuum Pum Pum p

Char ge

ON ON

























Diagnostics

FLOW DIAGRAMS Recover



























Vacuum

Diagnostics

























Diagnostics

Charge





























Air Purge

Diagnostics

























Diagnostics

Oil Inject LS or HS panel valve are opened

Oil inject button is depressed



























Diagnostics

NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________

























Diagnostics


























Service Bulletins


4

SERVICE BULLETINS

Place all service bulletins for the AC375 unit in this section



























Service Bulletins


























SPX ROBINAIR


TECHNICAL SERVICE BULLETIN

INFORMATION

SUBJECT: EQUIP. AFFECTED:

NO: DATE:

Pump Return Procedure All Robinair Cool Tech Pumps

00184-IN March, 2004

























Service Bulletins



























5

LABOR RATES

Labor Rates

























Labor Rates




















































AC375

Recommend Documents