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1970-72 CHEVELLE w/o FACTORY AIR
561071
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 1 OF 25
SS
2
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 2 OF 25
PAGESTable of Contents
1. COVER 2. TABLE OF CONTENTS 3. PACKING LIST / PARTS DISCLAIMER 4. INFORMATION PAGE 5. WIRING NOTICE 6. ENGINE COMPARTMENT, CONDENSER ASSEMBLY, COMPRESSOR & BRACKET, PULLEYS, FIGURE 1 7. PASSENGER COMPARTMENT FIGURES 2 & 3 8. KICK PANEL MODIFICATION FIGURES 4 & 5 9. DEFROST DUCT INSTALLATION & (OPTIONAL) HOSE ADAPTER INSTALLATION- IF EQUIPPED FIGURES 6 & 7 10. FRESH AIR COVER INSTALLATION & KICK PANEL FRESH AIR CAP INSTALLATION FIGURES 8, 9, 9a & 9b11. FIREWALL COVER INSTALLATION & EVAPORATOR INSTALLATION FIGURES 10 & 1112. BRACKET INSTALLATION FIGURE 1213. EVAPORATOR INSTALLTION CONT. FIGURES 13,14 & 14a14. 70-72 CHEVELL w/o AC w/o ASTRO VENTS & 70-72 CHEVELLE w/o AC w/ ASTRO VENTS FIGURES 15 & 1615. DRAIN HOSE INSTALLATION, LUBRICATING O-RINGS, A/C HOSE INSTALLATION, & MODIFIED A/C HOSE KIT FIGURES 17 & 1816. AC & HEATER HOSE ROUTING FIGURE 1917. FINAL STEPS, GLOVE BOX INSTALLATION FIGURES 20, 21 & 21a18. CONTROL PANEL & DUCT HOSE ROUTING FIGURE 2219. WIRING DIAGRAM20. GEN IV WIRING CONNECTION INSTRUCTIONS21. OPERATION OF CONTROLS22. TROUBLE SHOOTING INFORMATION23. TROUBLE SHOOTING INFORMATION CONT.24. KICK PANEL MODIFICATION TEMPLATE25. EVAPORATOR KIT PACKING LIST
3
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 3 OF 25
** BEFORE BEGINNING INSTALLATION OPEN ALL PACKAGES AND CHECK CONTENTS OF SHIPMENT. PLEASE REPORT ANY SHORTAGES DIRECTLY TO VINTAGE AIR WITHIN 15 DAYS. AFTER 15 DAYS, VINTAGE AIR WILL NOT BE RESPONSIBLE FOR MISSING OR DAMAGED ITEMS.
EVAPORATOR KIT561071
1.2.
11
762169784171
1
ACCESSORY KIT784171
2
GEN IV 4 VENTw/ 2 & 2 1/2 EVAP
SUB CASE762169
GEN IV 4 VENT w/ 2 & 2 1/2 EVAP. SUB CASE 1970-72 CHEVELLE w/o AC ACC. KIT
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.
OFF
DASH
HOT
FLR
HI
DEF
COLD
A C
4
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 4 OF 25
1970-72 CHEVELLE w/o AC
FOR MAXIMUM SYSTEM PERFORMANCE VINTAGE AIR RECOMMENDS THE FOLLOWING:
LUBRICANT CAPACITIES:
134a SYSTEM R-12 SYSTEMCHARGE WITH 2.0 lbs. OF REFRIGERANTCHARGE WITH 1.8 lbs.
(1lbs. 12ozs) OF REFRIGERANT
NEW COMPRESSOR - NO ADDITIONAL OIL NEEDED
SERVICE INFO:
SAFETY SWITCHES:
ATTENTION: SYSTEM COMPONENTS: THE COMPRESSOR, EVAPORATOR, CONDENSER & DRIER ARE CAPPED. CAPS MAY BE ; BE CAREFUL REMOVING CAPS. DO NOT REMOVE CAPSPRIOR TO INSTALLATION. REMOVING CAPS PRIOR TO INSTALLATION WILL CAUSE COMPONENTS TO COLLECT MOISTURE AND LEAD TO PREMATURE FAILURE AND REDUCED PERFORMANCE.
EVACUATE THE SYSTEM FOR 35-45 MINUTES WITH SYSTEM COMPONENTS (DRIER, COMPRESSOR, EVAPORATOR AND CONDENSER) AT A TEMPERATURE OF AT LEAST 85° F. ON A COOL DAY THE COMPONENTS CAN BE HEATED WITH A HEAT GUN BY RUNNING THE ENGINE WITH THE HEATER ON BEFORE EVACUATING. LEAK CHECK AND CHARGE TO SPECIFICATIONS.
UNDER PRESSURE WITH DRY NITROGEN
OR
YOUR VINTAGE AIR SYSTEM IS EQUIPPED WITH A BINARY PRESSURE SAFETY SWITCH. A BINARY SWITCH (11078-VUS) DISENGAGES THE COMPRESSOR CLUTCH IN CASE OF EXTREME LOW PRESSURE CONDITION (REFRIGERANT LOSS) OR EXCESSIVELY HIGH HEAD PRESSURE (406 PSI), TO PREVENT COMPRESSOR DAMAGE OR HOSE RUPTURE. A TRINARY SWITCH (11076-VUS) COMBINES HI/LO PRESSURE PROTECTION WITH AN ELECTRIC FAN OPERATION SIGNAL AT 254 PSI., AND MAY BE SUBSTITUTED FOR USE WITH ELECTRIC CONDENSER FANS. COMPRESSOR SAFETY SWITCHES ARE EXTREMELY IMPORTANT SINCE AN A/C SYSTEM RELIES ON REFRIGERANT TO CARRY LUBRICATION THROUGH THE SYSTEM.
VINTAGE AIR SYSTEMS ARE DESIGNED TO OPERATE WITH R134a or R-12 REFRIGERANT ONLY ! USE OF ANY OTHER REFRIGERANTS RISKS A DANGER OF FIRE
AND COULD DAMAGE EITHER YOUR AIR CONDITIONING SYSTEM OR YOUR VEHICLE.
USE OF ANY OTHER REFRIGERANTS WILL VOID ALL WARRANTIES OF THE AIR CONDITIONING SYSTEM AND COMPONENTS. USE OF THE PROPER
TYPE AND AMOUNT OF REFRIGERANT IS CRITICAL TO PROPER SYSTEM OPERATION. VINTAGE AIR RECOMMENDS OUR SYSTEMS BE CHARGED BY
WEIGHT WITH A QUALITY CHARGING STATION OR SCALE.
REFRIGERANT CAPACITIES FOR VINTAGE AIR SYSTEMS(FOR OTHER SYSTEMS, CONSULT MANUFACTURER GUIDELINES)
5
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 5 OF 25
THE HEATER CONTROL VALVE IS A NORMALLY OPEN VALVE. IT MUST BE CONNECTED TO THE ECU TO BLOCK WATER FLOW IN AC MODE.
CARE MUST BE TAKEN WHEN INSTALLING THE COMPRESSOR LEAD, NOT TO SHORTIT TO GROUND. THE COMPRESSOR LEAD MUST NOT BE CONNECTED TO A CONDENSERFAN OR ANY OTHER AUXILIARY DEVICE. SHORTING TO GROUND OR CONNECTING TO A CONDENSER FAN OR ANY OTHER AUXILIARY DEVICE WILL CAUSE SEVERE DAMAGETO THE ECU.
SOME VEHICLES MAY HAVE HAD SOME OR ALL OF THEIR RADIO INTERFERENCE CAPACITORS REMOVED. THERE SHOULD BE A CAPACITOR FOUND AT EACH OF THE FOLLOWING LOCATIONS:
1. ON THE POSITIVE TERMINAL OF THE IGNITION COIL2. IF THERE IS A GENERATOR, ON THE ARMATURE TERMINAL OF THE GENERATOR3. IF THERE IS A GENERATOR, ON THE BATTERY TERMINAL OF THE VOLTAGE REGULATOR
MOST ALTERNATORS HAVE A CAPACITOR INSTALLED INTERNALLY TO ELIMINATE WHAT IS CALLED 'WHINING' AS THE ENGINE IS REVVED. IF WHINING IS HEARD IN THE RADIO, OR JUST TO BE EXTRA CAUTIOUS, A RADIO INTERFERENCE CAPACITOR CAN BE ADDED TO THE BATTERY TERMINAL OF THE ALTERNATOR.
IT IS ALSO IMPORTANT THAT THE BATTERY LEAD IS IN GOOD SHAPE AND THAT THE GROUND LEADS ARE NOT COMPROMISED. THERE SHOULD BE A HEAVY GROUND FROM THE BATTERY TO THE ENGINE BLOCK, AND ADDITIONAL GROUNDS TO THE BODY AND TO THE CHASSIS.
IF THESE PRECAUTIONS ARE NOT OBSERVED, IT IS POSSIBLE FOR VOLTAGE SPIKES TO BE PRESENT ON THE BATTERY LEADS. THESE SPIKES COME FROM IGNITION SYSTEMS, CHARGING SYSTEMS, AND FROM TURNING SOME OF THE VEHICLE'S OTHER SYSTEMS ON AND OFF. MODERN COMPUTER OPERATED EQUIPMENT CAN BE SENSITIVE TO VOLTAGE SPIKES ON THEIR POWER LEADS, WHICH CAN CAUSE UNEXPECTED RESETS, STRANGE BEHAVIOR, AND MAY ALSO CAUSE PERMANENT DAMAGE.
VINTAGE AIR STRIVES TO HARDEN THEIR PRODUCTS AGAINST THESE TYPES OF ELECTRICAL NOISE, BUT THERE IS A POINT WHERE A VEHICLE'S ELECTRICAL SYSTEM CAN BE DEGRADED SO MUCH THAT NOTHING CAN HELP.
RADIO INTERFERENCE CAPACITORS SHOULD BE AVAILABLE AT MOST AUTO & TRUCK PARTS SUPPLIERS. THEY TYPICALLY ARE CYLINDRICAL IN SHAPE, A LITTLE OVER AN INCH LONG, A LITTLE OVER A HALF INCH IN DIAMETER, THEY HAVE A SINGLE LEAD COMING FROM ONE END OF THE CYLINDER WITH A TERMINAL ON THE END OF THE WIRE, AND THEY WILL HAVE A MOUNTING CLIP WHICH IS SCREWED INTO A GOOD GROUND ON THE VEHICLE. THE SPECIFIC VALUE OF THE CAPACITANCE IS NOT TOO SIGNIFICANT, IN COMPARISON TO IGNITION CAPACITORS THAT ARE MATCHED WITH THE COIL TO REDUCE PITTING OF THE POINTS.
IMPORTANT NOTICE-PLEASE READWIRING
G WHEN INSTALLING GROUND LEADS ON EN IV SYSTEMS, THE BLOWER CONTROL GROUNDAND ECU GROUND MUST BE CONNECTED DIRECTLY TO THE NEGATIVE BATTERY POST.
6
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 6 OF 25
BATTERY, BATTERY TRAY (RETAIN) DRAIN RADIATORTO REMOVE THE BLOWER ASSEMBLY (UNDER HOOD) AND THE AIR DISTRIBUTION SYSTEM (UNDER DASH) THE FACTORY MANUAL INDICATES DOING THE FOLLOWING, REMOVE RIGHT INNER FENDER. OEM HEATER HOSES (DISCARD). SEE FIGURE 1.OEM HEATER WIRING/VACUUM HARNESS MOLDED GROMMET. SEE FIGURE 1.
BEFORE STARTING THE INSTALLATION, CHECK THE FUNCTION OF THE VEHICLE (HORN, LIGHTS,ETC.) FOR PROPER OPERATIONS.
STUDY THE INSTRUCTIONS, ILLUSTRATIONS, & DIAGRAMS.
ENGINE COMPARTMENTREMOVE THE FOLLOWING
FIGURE 1
CONDENSER ASSEMBLY & INSTALLATION
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH THE CONDENSER KIT TO INSTALL THE CONDENSER.BINARY SWITCH INSTALLATION (REFER TO CONDENSER INSTRUCTIONS)
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH THE BRACKET KIT TO INSTALL THE COMPRESSOR BRACKET.
IN MOST INSTANCES THE BELT LENGTHS WILL REMAIN THE SAME.
COMPRESSOR & BRACKETS
PULLEYS
7
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 7 OF 25
REMOVE THE DASH PAD BY REMOVING (6) OEM SCREWS.(RETAIN), SEE FIGURE 2 BELOW. LOWER STEERING COLUMN. PROTECT STEERING COLUMN WITH A CLOTH.DISCONNECT ALL WIRE AND CABLES FROM INSTRUMENT PANEL SPEEDOMETER, CONTROL PANEL, AND RADIO. THE LOWER DASH BY REMOVING THE (8) BOLTS.(RETAIN) ALL HOSE AND DUCTING FROM O.E.M LOUVERS AND ASTRO VENT DOOR, SEE FIGURE 2 BELOW O.E.M DEFROST DUCT ASSEMBLY BY REMOVING THE (4) SCREWS, SEE FIGURE 3 BELOW. O.E.M HEATER ASM SEE FIGURE 3 BELOWPASSENGER SIDE KICK PANEL/ FRESH AIR DOOR ASM AS SHOWN IN FIGURE 4 PAGE 8.
PASSENGER COMPARTMENT
REMOVE THE FOLLOWING:
REMOVAL OF DASHBOARD REQUIRED TO INSTALL THE EVAPORATOR. VINTAGE AIR RECOMMENDS THAT YOU UTILIZE THE FACTORY SERVICE MANUAL WHEN YOU DISASSEMBLEAND REASSEMBLE THE DASHBOARD.
NOTE:
INSTRUMENTPANEL
DASH PAD
(6) OEM SCREWS
DOOR FLAP
CONTROLPANEL
HEATER ASSEMBLY& RELATED DUCTING
FIGURE 2 DEFROST DUCT ASM
OEM HEATER ASMFIGURE 3
8
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 8 OF 25
KICK PANEL MODIFICATION
FIGURE 4
FIGURE 5
FIGURE 5a
FRESH AIRDOOR ASM.
PULL CABLEASSEMBLIES
FRESH AIRDOOR ASM.
OEMSCREWS
TEMPLATE
31102-GUR1/2 PLASTIC PLUG
KICK PANEL GRILLE
REMOVE KICK PANEL GRILLE. (DISCARD) REMOVE KICK PANEL BY REMOVING (5) OEM SCREWSFROM THE FRESH AIR DOOR ASM. DISCONNECT AND DISCARD PULL CABLE ASSEMBLIES FROM THE KICK PANEL. SEE FIGURE 4 BELOW.
INSTALL 1/2 PLASTIC PLUGS TO FILL THE HOLES LEFT FROM THE REMOVAL OF THE PULL CABLE ASM..SEE FIGURE 5 BELOW. CUT FRESH AIR DOOR ASM. AS SHOWN IN FIGURE 5 BELOW. USE TEMPLATE PROVIDED ON PAGE 24. PLACE TEMPLATE ON KICK PANEL AS SHOWN IN FIGURE 5a.
KIC
K PA
NEL C
UT-O
UT
TEMPLA
TE
68-72 C
HEVELLE
W
/O A
C
CUTOUT
TEMPLATE
CUT THIS SECTION OUT
9
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 9 OF 25
FIGURE 6
DEFROST DUCT INSTALLATIONINSTALL DEFROST DUCTS UNDER DASH AS SHOWN IN FIGURE 6 BELOW. SECURE USING OEM SCREWS.
INSTALL ASTRO VENT CAP AS SHOWN IN FIGURE 6 BELOW.
DEFROST DUCT
626670
OPTIONALOEM
ASTROVENT
OPTIONALOEM
ASTROVENT ASTRO
VENTCAP
498825
ASTROVENTCAP
498825
OEM SCREWS
OEM DEFROST DUCT
MOUNTING FLANGE
(OPTIONAL) HOSE ADAPTER INSTALLATION- IF EQUIPPED
INSTALL S-CLIPS ON HOSE ADAPTERS AS SHOWN IN FIGURE 7 BELOW.
INSTALL DRIVER & PASSENGER SIDE HOSE ADAPTER INSIDE OEM LOUVERS. SEE FIGURE 7 BELOW
DR. SIDE LOUVER HOSE
ADAPTER498823
PASS SIDELOUVER HOSE
ADAPTER498824
INSTALL(3) S-CLIPSINSTALL
(3) S-CLIPS
PASSENGER SIDEDRIVER SIDE
FIGURE 7
10
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 10 OF 25
1/4-20 x 1 1/2”BOLT w/ WASHER
FRESH AIR COVER INSTALLATION
SILICONE
FRESH AIRCAP
(4) GROMMETS33137-VUI
FIGURE 8BACK SIDEOF FRESH AIR
CAP
GROMMET33145-VUI
ENGINE COMPARTMENT
SIDE OF FIREWALL
INSTALL (4) GROMMETS IN FRESH AIR CAP. SEE FIGURE 8 BELOWAPPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE FRESH AIR CAP AS SHOWN INFIGURE 8 BELOW.ATTACH FRESH AIR CAP TO FIREWALL USING A 1/4-20 x 1 1/2" BOLT AND WASHER, SEE FIGURE 8BELOW. (NOTE: FRESH AIR CAP INSTALLS ON ENGINE SIDEOF FIREWALL.)
FIGURE 9b
FIGURE 9a
FIGURE 9
KICK PANEL FRESH AIR CAP INSTALLATION
INSTALL (4) GROMMETS IN KICK PANEL FRESH AIR CAP, SEE FIGURE 9a BELOW.
ROUTE A/C AND HEATER HOSE THROUGH FRESH AIR CAP AND KICKPANEL FRESH AIR CAP AS SHOWN IN FIGURE 9 AND 9b, BELOW.
APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF KICK PANEL FRESH AIR CAP AS SHOWN IN FIGURE 9a, BELOW.
SECURE KICK PANEL FRESH AIR CAP USING (5) #8 x 1 1/4 PH PAN HEAD SCREWS, AS SHOWN IN FIGURE 9b BELOW.
(5) #8 x 1 1/4PH PAN HEAD
SCREWS
SILICONE
BACKSIDE OF KICK PANEL
FRESH AIR CAP
#10 A/CHOSE
#6 A/CHOSE(2)HEATER
HOSES
#10 A/C HOSE
#6 A/C HOSE(2) HEATER
HOSE
(4)GROMMETS33137-VUI
11
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 11 OF 25
FIREWALL COVER INSTALLATIONAPPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE FIREWALL COVER AS SHOWN IN FIGURE 10, BELOW.
FROM INSIDE THE CAR, INSTALL FIREWALL COVER ON FIREWALL USING (3) 1/4-20 x 1” HEX BOLTS, FLAT WASHERS AND 1/4-20 NUT WITH STAR WASHER, SEE FIGURE 10, BELOW.
BACK SIDEOF FIREWALL
COVERSILICONE
(3) 1/4-20 x 1”HEX BOLT
FIREWALLCOVER648169
HOLE NOT USED
(3) 1/4 x 3/4FLAT WASHER
EVAPORATOR INSTALLATIONON A WORK BENCH INSTALL (2) HEATER FITTINGS WITH PROPERLY LUBRICATED O-RINGS. (SEE FIGURE 18 PAGE 15, AND FIGURE 12 PAGE 12.)INSTALL (2) 1/4-20 x 1” HEX BOLT AND 1/4 PUSH NUT BOLT RETAINER ON EVAP REAR BRKT AS SHOWN IN FIGURE 12, PAGE 12.INSTALL EVAPORATOR FRONT & REAR MOUNTING BRACKETS ON EVAPORATOR USING (5)1/4-20 x 1/2” HEX BOLTS AND TIGHTEN AS SHOWN IN FIGURE 11 BELOW & FIGURE 12,PAGE 12.LAY EVAPORATOR SUBCASE ON PASSENGER SIDEFLOOR BOARD. INSTALL A/C & HEATER HOSEON EVAPORATOR AS SHOWN IN FIGURE 13, PAGE 13 AND HOSE INSTALLATION ON PAGE 15.(NOTE: WRAP THE #10 FITTING CONNECTIONS WITH PRESS TAPE. SEE FIGURE 13, PAGE 13.)
1/4-20 x ½”HEX BOLT
FRONTEVAPORATOR
BRACKET647066
FIGURE 11
FIGURE 10
(3) 1/4-20 NUTS WITH
STAR WASHER
12
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 12 OF 25
REAREVAPORATOR
BRACKET655000-VUB
(2) HEATERFITTINGS
(2) 1/4-20 x ½”HEX BOLT
(2) 1/4-20 x ½”HEX BOLT
BRACKET INSTALLATION CONT.
(2) 18290-VUB1/4-20 x 1” HEX BOLT
70-72 CHEVELLEw/o AC
MOUNTINGHOLES
FIGURE 12
(2) 189125-MUR1/4 PUSH NUTBOLT RETAINER
13
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 13 OF 25
FIGURE 13
FIGURE 14
FIGURE 14a
EVAPORATOR INSTALLATION CONT.LIFT EVAPORATOR UNIT UP UNDER THE DASHBOARD. SECURE LOOSELY TO THE FIREWALL FROM THE ENGINE COMPARTMENT SIDE USING (2) 1/4-20 NUT AND FLAT WASHER, SEE FIGURE 14.SECURE THE FRONT EVAPORATOR MOUNTING BRACKET BETWEEN THE DASH BRACKET AND COWL BRACKET USING OEM SCREW. SEE FIGURE 14a.VERIFY THAT EVAPORATOR UNIT IS LEVEL AND SQUARE TO THE DASH, THEN TIGHTEN ALL MOUNTING BOLTS. (NOTE: TIGHTEN THE BOLT ON FIREWALL FIRST, THEN THE FRONT MOUNTING BRACKET OEM BOLT.)ONCE EVAPORATOR IS IN PLACE. ROUTE A/C & HEATER HOSE OUT KICK PANEL FRESH AIR CAP AND THROUGH FRESH AIR CAP.
#10 A/C HOSE
HOSECLAMPS
(2) 1/4-20 NUTw/ FLAT WASHER
HEATER HOSE
#6 A/C HOSE
PRESSTAPE
FRONT EVAPORATOR
BRKT647066
OEM BOLT
KICK PANELFRESH AIR
CAP
14
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 14 OF 25
70-72 CHEVELLE w/o AC w/o ASTRO VENTS
INSTALL LOUVER HOUSINGS UNDER DASH AS SHOWN IN FIGURE 15 BELOW.
INSTALL LOUVERS IN HOUSING, SEE FIGURE 15 BELOW.
70-72 CHEVELLE w/o AC w/ ASTRO VENTS
INSTALL CENTER LOUVER UNDER DASH AS SHOWN IN FIGURE 16 BELOW
FOR ASTRO VENT HOSE ADAPTER INSTALLATION REFER TO PAGE 9.
(6) #8 x 1/2 PH PAN HEAD
SCREWS
(2) #8 x 1/2 PH PAN HEAD
SCREWS
FIGURE 15
FIGURE 16
15
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 15 OF 25
LOCATE THE #8 COMPRESSOR A/C HOSE. LUBRICATE (2) #8 O-RINGS (SEE FIGURE 18, ABOVE) AND CONNECTTHE 135° FEMALE FITTING w/ 134a SERVICE PORT TO THE #8 DISCHARGE PORT ON THE COMPRESSOR.ROUTE THE STRAIGHT FEMALE FITTING TO THE #8 CONDENSER HARDLINE COMING THROUGH CORE SUPPORT. SEE FIGURE 19, PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 18 ABOVE.LOCATE THE #10 COMPRESSOR A/C HOSE. LUBRICATE (2) #10 O-RINGS (SEE FIGURE 18, ABOVE) AND CONNECT THE #10 135° FEMALE FITTING w/134a SERVICE PORT TO THE #10 SUCTION PORT ON THECOMPRESSOR. ROUTE THE 90° FEMALE FITTING TO THE #10 EVAPORATOR. SEE FIGURE 13 PAGE 13 ANDFIGURE 19, PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN 18 ABOVE. LOCATE THE #6 EVAPORATOR A/C HOSE. LUBRICATE (2) #6 O-RINGS (SEE FIGURE 18 , ABOVE) AND CONNECT THE STRAIGHT FEMALE FITTING TO THE #6 HARDLINE COMING THROUGH THE CORE SUPPORT FROM DRIER. ROUTE THE 90° FEMALE FITTING TO THE #6 EVAPORATOR. SEE FIGURE 13, PAGE 13 AND FIGURE 19 PAGE 16. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 18, ABOVE. USE A #10 ADEL CLAMP TO SECURE THE #10 A/C HOSE TO ALTERNATOR BRKT AS SHOWN IN FIGURE 19, PAGE 16. SECURE THE ADEL CLAMP TO THE ALTERNATOR BRKT USING 10-32 x ½” PH PAN HEAD SCREWS w/ NUTS.
A/C HOSE INSTALLATIONSTANDARD HOSE KIT
LUBRICATING O-RINGS
#6 O-RING
#8 O-RING #10 O-RING
HOLD WITHTHIS W RENCH
FOR A PROPER SEAL OF FITTINGS:INSTALL SUPPLIED O-RINGS AS SHOWNAND LUBRICATE WITH SUPPLIED OIL.
O-RING
SUPPLIED OIL FOR O-RINGS O-RING,INSTALES
OVER MALE INSERTTO SWAGED LIP
MALEINSERT
FEMALENUT
O-RING
TWIST WITHTHIS WRENCH
FIGURE 18
LOCATE EVAPORATOR DRAIN ON BOTTOM OF EVAPORATOR CASE.IN-LINE WITH DRAIN, LIGHTLY MAKE A MARKON THE FIREWALL MEASURE 1” DOWN AND2 1/2” TO THE LEFT AND DRILL A 5/8” HOLE THROUGH THE FIREWALL. SEE FIGURE 17 BELOW.INSTALL DRAIN HOSE TO BOTTOM OFEVAPORATOR UNIT AND ROUTE THROUGHFIREWALL. SEE FIGURE 17.
DRAIN HOSE INSTALLATION
FIGURE 17
EVAPORATORCASE1”2 1/2”
DRAINHOSE
1”2 1/2”
REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH MODIFIED HOSE KIT. MODIFIED A/C HOSE KIT
16
1970-7
2 C
HEV
ELLE
w/o
AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 16 OF 25
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#8 C
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091172
#8 C
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HEATER HOSE & HEATER CONTROL VALVE INSTALLATION
ROUTE A PIECE OF HEATER HOSE FROM THE WATER PUMP TO THE TOP HEATER FITTING OF HEATER CORE AS SHOWN IN FIGURE 13 PAGE 13 AND FIGURE 19 BELOW. SECURE USING HOSE CLAMPS
ROUTE A PIECE OF HEATER HOSE FROM THE INTAKE TO THE BOTTOM HEATER FITTING OF HEATER COREAS SHOWN IN FIGURE 13 PAGE 13 AND FIGURE 19 BELOW. NOTE: INSTALL HEATER CONTROL VALVE IN-LINE WITH INTAKE MANIFOLD (PRESSURE SIDE) HEATER HOSE, SECURE USING HOSE CLAMPS AS SHOWN IN FIGURE 19, BELOW. NOTE: PROPER FLOW DIRECTION.
17
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 17 OF 25
GLOVE BOX INSTALLATION
MODIFY GLOVE BOX AS SHOWN IN FIGURE 21 BELOW.INSTALL (4) S-CLIPS IN GLOVE BOX CAP, SEE FIGURE 21a BELOW.INSTALL GLOVE BOX CAP. SEE FIGURE 21a BELOW.
INSTALL DUCT HOSES AS SHOWN IN FIGURE 22, PAGE 18ROUTE A/C WIRES THROUGH 5/8 GROMMENT AS SHOWN ON FIGURE 20(12 VOLT/ GROUND/ BINARY SWITCH/ HEATER VALVE).INSTALL CONTROL PANEL ASM.PLUG THE WIRING HARNESS IN THE ECU MODULE ON SUB CASE AS SHOWN IN FIGURE 22, PAGE 18(WIRE ACCORDING TO WIRING DIAGRAM ON PAGE 19 AND 20.)
REINSTALL ALL PREVIOUSLY REMOVED ITEMS (BATTERY TRAY, BATTERY & INNER FENDER).FILL RADIATOR WITH AT LEAST A 50/50 MIXTURE OF APPROVED ANTIFREEZE AND DISTILLED WATER.IT IS THEOWNER'S RESPONSIBILITY TO KEEP THE FREEZE PROTECTION AT THE PROPER LEVEL FOR THE CLIMATE INWHICH THE VEHICLE IS OPERATED. FAILURE TO FOLLOW ANTIFREEZE RECOMMENDATIONS WILL CAUSEHEATER CORE TO CORRODE PREMATURELY AND POSSIBLY BURST IN AC MODE AND/OR FREEZING WEATHER,VOIDING YOUR WARRANTY.DOUBLE CHECK ALL FITTINGS, BRACKETS AND BELTS FOR TIGHTNESS.VINTAGE AIR RECOMMENDS THAT ALL AC SYSTEMS BE SERVICED BY A CERTIFIED AUTOMOTIVE AIRCONDITIONING TECHNICIAN. EVACUATE THE SYSTEM FOR A MINIMUM OF 45 MINUTES PRIOR TO CHARGING AND LEAK CHECK PRIORTO SERVICING. CHARGE THE SYSTEM TO THE CAPACITIES STATED ON THE INFORMATION PAGE (PAGE 4) OF THIS INSTRUCTION MANUAL. SEE OPERATION OF CONTROLS PROCEDURES PAGE 21.
FINAL STEPS
FIGURE 20FIGURE 21
FIGURE 21a
2”
(4) S-CLIPS
GLOVE BOX CAP
626670
TOP OFGLOVE
BOX
CUT OFF 2” (DISCARD)
GROMMET33144-VUI
18
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 18 OF 25
CONTROL PANEL & DUCT HOSE ROUTING
CONTROL PANELHARNESS
FROM ECU 232007-VUR
PLUGFROM
WIRINGHARNESS
232001-VUR
DRIVER SIDE LOUVER
2 ½” x 32”
PASS. SIDE LOUVER
2 ½” x 36”
UNDERDASH CENTER LOUVER
2” x 20”
DEFROST DUCTDR. SIDE2” x 18”
DEFROST DUCTPASS. SIDE2” x 12”
FIGURE 22
19
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 19 OF 25
WIRING DIAGRAM
85 8586 86
GROUND
DASH/FLOOR
DEFROST/PLENUM
TEMPERTURE BLEND
COMPRESSOR
30 AMP
BLK
BLK
DK BLUDK BLU
RED
RED
RED RED RED
RED
RED
RED
GRY
GRNLT BLUYEL/BLK
GRN
WHT
WHT
WHT
ORA
VIO
VIO
WHT
ORA
GRY
RED
WHT
N/A TACHDASH LAMP(NOT USED)
PRGM
JM8
JM9
JM1
JM2
JM6
JM5
JM4
JM3
GRY
BLK
BLK
YEL
VIEWED FROM BOARD TOP SIDE
NOT USED
JF8
TAN
GENIV WIRING DIAGRAMREVISION B, 2006-05-04
CMPR
= CHASSIS NOTE:
BATTERY
BLOWER MOTOR
BSC
GEN-IV ECU
CIRCUITBREAKER
HCV
30 30
87 87
RELAYRELAY
HEATERCONTROL
VALVE
BAT
RUN
IGNITION+ 12vSWITCH
WIDE OPENTHROTTLE SWITCH(OPTIONAL)
EVAPORATORTEMPERATURESENSOR
STEPPERREDGRN
GRN
YEL
BLK
BLU
STEPPERREDGRN
GRN
YEL
BLK
BLU
STEPPERREDGRN
GRN
YEL
BLK
BLU
RED
RED
RED
RED
WHT
WHT
WHT
WHTWHT/GRN
WHT/YEL
WHT/RED
WHT/BLUNA
DASHFLRDEF
FAN
COLDHOTJF8
VIEWED FROM WIRE SIDE
SWITCH CONTACTS WIDE OPEN THROTTLE
CLOSE ONLY ATFULL THROTTLE,WHICH DISABLESAC COMPRESSOR
OPTIONAL:
BINARY
DRIER
OR TRINARYSAFETYSWITCHWARNING: ALWAYS MOUNT CIRCUIT
BREAKER UNDER THE HOOD IN THE ENGINE COMPARTMENT AND AS CLOSE TO
THE BATTERY AS POSSIBLE.
20
1970-7
2 C
HEV
ELLE
w/o
AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 20 OF 25
HEA
TER
CO
NTR
OL
VALV
E RE
LAY
HEA
TER
CO
NTR
OL
VA
LVE
REFE
R TO
CO
NTR
OL
PAN
EL I
NST
RUC
TIO
NS
AN
D P
LUG
IN A
CC
ORD
ING
LY
BIN
ARY
SAFE
TYSW
ITC
H
NO
TE:
IF U
SIN
G T
RIN
ARY
SAFE
TY S
WIT
CH
- RE
FER
TO
WIR
ING
SC
HEM
ATI
C S
UPP
LIED
WIT
H T
RIN
AY
SAFE
TY S
WIT
CH
FOR
PRO
PER
WIR
ING
IN
STRU
CTI
ON
S
(IG
NIT
ION
HO
TTE
RMIN
AL)
NO
TE:
CO
NN
ECT
WH
ITE
WIR
ES D
IREC
TLY
TO (
) B
ATT
ERY
TERM
INA
L
CO
NN
ECT
CO
NN
ECT
BA
CK
SID
EO
F EV
AP
OR
ATO
R
FRO
NT
SID
EO
F EV
AP
OR
ATO
R
CO
NN
ECT (S
UPPL
IED
G
ROU
ND
WIR
E, N
OT
PART
OF
HARN
ESS)
CIR
CU
IT B
REAKE
R30
AM
P
CO
NN
ECT
CO
NN
ECT
CO
NN
ECT
CO
NN
ECT
CO
NN
ECT
NO
TE:
MO
UN
T RE
LAYS
IN D
ESIR
EDLO
CA
TIO
NU
ND
ER D
ASH
NO
TE:
YELL
OW
, O
RA
NG
E&
TA
N C
OM
ING
FR
OM
HA
RN
ESS
AR
E G
RA
Y W
IRE
IS U
SED
FOR
PRO
GR
AM
ING
CON
TRO
LS I
F A
PP
LIC
AB
LE
NO
T U
SED
.
GEN
IV
WIR
ING
CO
NN
EC
TIO
N
INST
RU
CTIO
NS
CO
NTR
OL
WIR
INGW
IRIN
G
HA
RNES
S
HA
RNES
S
A/C
CO
MPR
ESSO
RRE
LAY
GRO
UN
D
+
+
-
WH
T
GRN
BLU
E
BLA
CK
BLU
E
RED
RED
RED
RED
RED
WH
T
WH
T
WH
T
WH
TWH
TV
IOL E
T
WH
T
WH
T
C
HAS
SIS
BA
TTER
Y
CO
MPR
ESSO
R
BAT
RU
N
IGN
ITIO
N
12 V
SWIT
CH
WA
RN
ING
: A
LWA
YS M
OU
NT
CIR
CU
IT B
REA
KER
UN
DER
TH
E H
OO
D
IN T
HE
ENG
INE
CO
MPA
RTM
ENT
AN
D A
S C
LOSE
TO
TH
E B
ATT
ERY
AS
POSS
IBLE
.
21
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 21 OF 25
OPERATION OF CONTROLS
A/C THERMOSTAT IN DEF MODE SLIDE THE
THERMOSTAT LEVER ALL THEWAY TO THE LEFT TO THE
HOT POSITION, FOR MAXIMUM HEATING(SLIDE LEVER LEFT OR RIGHT TO
ADJUST DESIRED TEMPERATURE)
LEVER MODE SLIDE THE LEVER TOTHE “DEF” POSITION
LEVER
DEFROST MODE
MODELEVER THERMOSTAT
SYSTEM OFF
BLOWER SPEED
DASH
HOT
BLOWER SPEED THIS LEVER CONTROLS
THE BLOWER SPEED, FROM OFF TO HI
A/C THERMOSTAT IN A/C MODE SLIDE THE THERMOSTAT LEVER ALL THE WAY RIGHT TO THE COLD POSITION, FOR MAXIMUM COOLING. BLUE AC INDICATORLIGHT WILL COME ON ONLY WHEN AC COMPRESSORIS ENGAGED (SLIDE LEVER LEFT OR RIGHT TO ADJUST DESIRED TEMPERATURE)
LEVER MODE SLIDE THE LEVER TO
THE “DASH” POSITION
LEVER
A/C MODE
DASH
HOT
BLUE AC INDICATOR
LIGHT
A/C THERMOSTAT
THERMOSTAT LEVER ALL THEWAY TO THE LEFT TO THE
HOT POSITION, FOR MAXIMUM HEATING(SLIDE LEVER LEFT OR RIGHT TO
ADJUST DESIRED TEMPERATURE)
LEVER MODE SLIDE THE LEVER TOTHE “FLR” POSITION
(SLIDE THE LEVER TO THE LEFT OR RIGHT,
TO ADJUST DESIRED DASH/ FLR/ DEF LOCATION
LEVER
HEAT MODE
DASH
HOT
DASH
HOT
NOTE: WHEN BATTERY POWER IS FIRST CONNECTED TO THE ECU, THE COMPUTER GOES THROUGH AN INITIALIZATION SEQUENCE.THIS INITIALIZATION MAY TAKE UP TO 30 SECONDS. DURING INITIALIZATION THE BLOWER WILL NOT OPERATE, BUT THE DOORS INSIDE THE UNIT WILL BE OPERATING. A LOW BATTERY OR DISCONNECTING THE BATTERY MAY ALSO TRIGGER ARE-INITIALIZATION. DURING START UP, A LOW BATTERY MAY DROP BELOW 7 VOLTS, TRIGGERING RE-INITIALIZATION.
IN HEAT MODE SLIDE THE
22
1970-7
2 C
HEV
ELLE
w/o
AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 22 OF 25
TR
OU
BL
E S
HO
OT
ING
IN
FO
RM
AT
ION
SYM
PTOM
COND
ITIO
NCH
ECKS
ACTI
ONS
NOTE
S
1.B
LOW
ER
STA
YS
ON
HIG
H
SP
EED
WH
EN IG
NIT
ION
IS O
NN
O O
THER
FUN
CTI
ONS
WO
RK
CH
ECK
FO
R D
AMAG
ED P
INS
OR
WIR
ES IN
CO
NTRO
L H
EAD
PLU
G.
VE
RIF
Y A
LL P
INS
ARE
INS
ERTE
D IN
TO P
LUG
. IN
SU
RE
NO
P
INS
AR
E BE
NT
OR
DAM
AGE
D IN
EC
U.
CHEC
K FO
R D
AMA
GED
GR
OUN
D W
IRE
(WHI
TE) I
N
CON
TRO
L HE
AD H
AR
NES
S.V
ER
IFY
CON
TIN
UIT
Y T
O C
HAS
SIS
GR
OU
ND
WIT
H W
HITE
C
ON
TRO
L H
EAD
WIR
E A
T V
ARIO
US
PO
INT
S.LO
SS
OF
GR
OU
ND
ON
TH
IS W
IRE
WIL
L R
EN
DE
R C
ON
TRO
L H
EAD
INO
PE
RA
BLE
ALL
OT
HER
FUN
CT
ION
S W
ORK
CH
ECK
FOR
DAM
AGED
BLO
WE
R S
WIT
CH
OR
PO
T A
ND
ASS
OC
IATE
D W
IRIN
G.S
EE
BLO
WE
R S
WIT
CH
CH
EC
K P
RO
CE
DUR
E
BLO
WER
STA
YS O
N H
IGH
S
PEE
D W
HE
N IG
NIT
ION
IS O
N
OR
OFF
.
UN-
PLU
G 3
WIR
E B
SC C
ONT
RO
L CO
NN
EC
TOR
FRO
M E
CU
. IF
BLO
WER
SH
UTS
OFF
, EC
U IS
EIT
HER
IM
PRO
PER
LY W
IRED
, OR
DA
MA
GED
.
BE S
URE
SM
ALL,
20G
A. W
HIT
E G
RO
UN
D W
IRE
IS
CON
NE
CTE
D TO
THE
BAT
TER
Y G
RO
UN
D P
OST
. IF
IT IS
, RE
PLAC
E E
CU.
UN
-PLU
G 3
WIR
E BS
C C
ONTR
OL
CO
NN
ECTO
R
FRO
M E
CU
. IF
BLO
WE
R S
TAYS
RUN
NIN
G, T
HE
BSC
IS
EIT
HER
IMPR
OP
ERLY
WIR
ED
, OR
DAM
AG
ED.
CHE
CK
TO
INS
UR
E T
HAT
NO
BSC
WIR
ING
IS D
AM
AG
ED
OR
S
HO
RTE
D T
O V
EH
ICLE
GR
OUN
D.
THE
BSC
OP
ERAT
ES
T
HE
BLO
WER
BY
GRO
UN
D S
IDE
PW
M S
WIT
CH
ING.
TH
E
PO
SIT
IVE
WIR
E TO
TH
E B
LOW
ER
WIL
L ALW
AYS
BE
HO
T.
IF T
HE
"GR
OU
ND
" SID
E O
F T
HE B
LOW
ER
IS S
HO
RTE
D T
O
CHA
SSIS
GR
OU
ND
, TH
E B
LOW
ER
WIL
L R
UN
ON
HI.
REP
LAC
E B
SC.
(THI
S W
ILL
REQ
UIR
E E
VAP
OR
ATO
R T
O B
E
REM
OV
ED
FR
OM
VEH
ICLE
. )
NO
OTH
ER
PAR
T R
EP
LAC
EM
EN
TS S
HO
ULD
BE
NEC
ESS
ARY
.
2. C
OM
PR
ES
SOR
WIL
L N
OT
TU
RN
O
N (A
LL O
THE
R F
UN
CTI
ON
S
WO
RK
)
SY
STE
M IS
NO
T C
HA
RG
ED
SY
STE
M M
UST
BE
CH
AR
GED
FO
R C
OM
P. T
O
EN
GA
GE.
CH
AR
GE
SYS
TEM
OR
BY
PAS
S PR
ESS
UR
E S
WIT
CH
. DA
NGER
- NEV
ER B
YPAS
S SA
FETY
SW
ITCH
WIT
H
ENG
INE
RUNN
ING
, SER
IOUS
INJU
RY C
AN
RES
ULT
CH
ECK
FO
R F
AULT
Y A
/C P
OT
OR A
SS
OC
. WIR
ING
(NO
T A
PPLI
CAB
LE T
O 3
PO
T C
ON
TRO
LS)
CH
EC
K C
ON
TIN
UIT
Y TO
GR
OU
ND
ON
WH
ITE
CO
NTR
OL
HEA
D W
IRE.
CH
EC
K F
OR
5V
ON
RE
D C
ON
TR
OL
HE
AD
WIR
E.
TO C
HEC
K FO
R P
RO
PE
R P
OT
FUN
CTI
ON
, CH
ECK
VO
LTA
GE
AT W
HIT
E/B
LUE
WIR
E.
VO
LTAG
E S
HO
ULD
BE
BET
WE
EN
0 A
ND 5
V, A
ND
WIL
L VA
RY
W
ITH
PO
T LE
VER
PO
SIT
ION
.C
HE
CK F
OR
DIS
CO
NN
ECTE
D O
R F
AULT
Y
TH
ER
MIS
TO
R.
CH
EC
K T
WO
PIN
CO
NN
EC
TO
R A
T EC
U
HO
US
ING
. D
ISC
ON
NE
CTE
D O
R F
AULT
Y T
HER
MIS
TOR
WIL
L C
AU
SE
CO
MP
RES
SO
R T
O B
E D
ISAB
LED
.
3. C
OM
PRES
SO
R W
ILL
NOT
TURN
O
FF (
ALL
OTH
ER
FUN
CTIO
NS
WO
RK)
CH
ECK
FOR
FAU
LTY
A/C
PO
T O
R A
SSO
C. W
IRIN
GRE
PAIR
/RE
PLA
CE
PO
T/C
ONT
RO
L W
IRIN
GR
ED W
IRE
@ A
/C P
OT
SH
OU
LD H
AVE
APP
RO
X. 5
V
WIT
H IG
NIT
ION
ON
. W
HITE
WIR
E W
ILL
HAV
E
CO
NTI
NU
ITY
TO
CH
AS
SIS
GR
OU
ND
, WH
ITE/
BLU
E W
IRE
SHO
ULD
VA
RY
BE
TWE
EN
0V
AN
D 5V
WH
EN
LEV
ER
IS M
OV
ED U
P A
ND
DOW
N.
CH
ECK
FOR
FAU
LTY
A/C
RE
LAY
REP
LAC
E R
ELA
Y
23
1970-7
2 C
HEV
ELLE
w/o
AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 23 OF 25
4.SY
STEM
WIL
L N
OT
TUR
N O
N O
R
RUNS
INTE
RM
ITTE
NTL
YW
ORKS
WH
EN
EN
GIN
E IS
NO
T R
UN
NIN
G, S
HUT
S O
FF W
HEN
E
NG
INE
IS S
TART
ED.
(T
YPIC
ALLY
EA
RLY
GEN
4, B
UT
PO
SSI
BLE
ON
ALL
VER
SIO
NS)
NO
ISE
INTE
RFE
RE
NC
E F
RO
M E
ITH
ER
IGN
ITIO
N O
R A
LTE
RN
ATOR
.IN
STA
LL C
APAC
ITO
RS
ON
IGN
. CO
IL, A
ND
ALT
ER
NAT
OR
. EN
SU
RE
GO
OD G
ROUN
D A
T A
LL P
OIN
TS.R
E-LO
CAT
E C
OIL
AN
D A
SSO
CIA
TED
WIR
ING
AW
AY F
ROM
EC
U A
ND
ECU
W
IRIN
G.
CH
ECK
FOR
BU
RN
ED
OR
LO
OS
E P
LUG
WIR
ES
.
IGNI
TIO
N N
OIS
E (R
ADIA
TED
OR
CO
ND
UC
TED
) WIL
L C
AUSE
TH
E S
YST
EM T
O S
HUT
DO
WN
DU
E T
O
HIG
H V
OLT
AGE
SP
IKE
S. I
F TH
IS IS
SU
SPE
CTE
D,
CH
EC
K W
ITH
A Q
UAL
ITY
OSC
ILIS
COP
E. S
PIK
ES
GR
EAT
ER T
HAN
16V
WIL
L SH
UT
DOW
N E
CU
. IN
STA
LL A
RA
DIO
CA
PAC
ITO
R A
T T
HE
PO
SIT
IVE
PO
ST
OF
TH
E IG
NIT
ION
CO
IL (S
EE R
AD
IO
CAP
ACIT
OR
INS
TALL
ATIO
N B
ULLE
TEN
). A
FAU
LTY
A
LTER
NAT
OR
OR
WO
RN O
UT B
ATTE
RY
CA
N A
LSO
RES
ULT
IN T
HIS
CO
ND
ITIO
N. B
ATT
ERY
MUS
T BE
IN
GO
OD
CO
ND
ITIO
N F
OR
ALT
ER
NAT
OR
R
EGU
LATO
R T
O F
UNC
TIO
N P
RO
PER
LY.
WIL
L N
OT
TUR
N O
N U
ND
ER A
NY
C
ON
DIT
ION
SV
ERIF
Y C
ON
NEC
TIO
NS
ON
PO
WE
R L
EAD
, IG
NIT
ION
LE
AD
, AN
D B
OTH
WH
ITE
GR
OU
ND
WIR
ES
.CH
EC
K F
OR
PO
SITI
VE
PO
WE
R A
T H
EAT
ER
VA
LVE
GR
EE
N W
IRE.
AN
D B
LOW
ER
RE
D W
IRE.
CH
EC
K F
OR
GRO
UN
D
ON
CO
NT
RO
L H
EAD
WH
ITE
WIR
E.
VER
IFY
BAT
TER
Y VO
LTA
GE IS
GR
EAT
ER
THA
N 1
0 V
OLT
S A
ND
LE
SS T
HA
N 1
6.VE
RIF
Y P
RO
PE
R M
ETER
FUN
CTI
ON
BY
CH
EC
KIN
G A
KN
OW
N G
OO
D B
ATT
ERY
'S V
OLT
AG
E.
5.LO
SS
OF
MO
DE
DO
OR
FUN
CTI
ON
NO
MO
DE
CH
ANG
E A
T A
LLC
HE
CK F
OR
DA
MA
GE
D M
OD
E S
WIT
CH
OR
PO
T AN
D
ASS
OC
IATE
D W
IRIN
GP
ART
IAL
FUN
CTI
ON
OF
MO
DE
D
OO
RS
CH
ECK
FO
R O
BST
RU
CT
ED O
R B
INDI
NG
MO
DE
D
OO
RS
TYP
ICA
LLY
CA
US
ED B
Y EV
APO
RAT
OR
HO
US
ING
IN
STA
LLE
D IN
A B
IND
IN T
HE
VE
HIC
LE.
BE S
URE
A
LL M
OUN
TIN
G L
OC
ATIO
NS
LIN
E U
P A
ND
DO
N'T
H
AVE
TO B
E FO
RC
ED
INTO
PO
SIT
ION
.C
HE
CK F
OR
DA
MA
GE
D S
TEP
PER
MO
TOR
OR
W
IRIN
G
6. B
LOW
ER
TU
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ED
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68-72 C
HEVELLE
W
/O A
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CUT ALONGDOTTED LINE
CUT ALONGDOTTED LINE
CUT THIS AREA
24
1970-72 CHEVELLE w/o AC
901071 REV A 12/31/08 , 1970-72 CHEVELLE w/o AC EVAP INSTR PG 25 OF 25
** BEFORE BEGINNING INSTALLATION OPEN ALL PACKAGES AND CHECK CONTENTS OF SHIPMENT. PLEASE REPORT ANY SHORTAGES DIRECTLY TO VINTAGE AIR WITHIN 15 DAYS. AFTER 15 DAYS, VINTAGE AIR WILL NOT BE RESPONSIBLE FOR MISSING OR DAMAGED ITEMS.
EVAPORATOR KIT561071
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762169784171
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ACCESSORY KIT784171
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GEN IV 4 VENTw/ 2 & 2 1/2 EVAP
SUB CASE762169
GEN IV 4 VENT w/ 2 & 2 1/2 EVAP. SUB CASE 1970-72 CHEVELLE w/o AC ACC. KIT
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.
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