Vintage Air Install

18865 GOLL ST. - SAN ANTONIO, TX. - 78266 ph.210-654-7171 - fax 210-654-3113

1970-78 CHEVY CAMAROw/o FACTORY AIR GEN IV

561170

901172 REV A 8/13/07, 1970-78 CAMARO w/o AC GEN IV EVAP INSTR PG 1 OF 28

PAGES

1. 2. 3. 4. 5. 6. 7. 8. 9.

10.

11.

12. 13.

14.

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18.

19.

20.

21.22.23.24.25.26.27.28.

COVERTABLE OF CONTENTSPACKING LIST/ PARTS DISCLAIMERINFORMATION PAGEWIRING NOTICE ENGINE COMPARTMENT FIGURES 1 & 1aPASSENGER COMPARTMENT FIGURES 2 & 3EVAPORATOR MOUNTING HOLE & DEFROST DUCT INSTALLATION FIGURES 4, 5 & 5aHOSE ADAPTER INSTALLATION & FRESH AIR COVER INSTALLATION FIGURES 6 & 7KICK PANEL, FIREWALL COVER, EVAPORATOR INSTALLATION FIGURE 8, 8a & 9FIREWALL COVER INSTALLATION & EVAPORATOR INSTALLATION CONT. FIGURES 10 & 11DRAIN HOSE & FIREWALL CAP INSTALLATION FIGURES 12 & 13CENTER LOUVER MOUNTING HOLES FIGURES 14 & 14aCENTER LOUVER INSTALLATION FIGURES 15 & 15aLUBRICATING O-RINGS, STANDARD HOSE KIT , AND MODIFIED A/C HOSE KIT FIGURE 16HEATER HOSE & HEATER CONTROL VALVE INSTALLATION FIGURE 17 A/C & HEATER HOSE ROUTING FIGURES 18, 18a, 18bFINAL STEPS GLOVE BOX, AND UNDER DASH LOUVER INSTALLATION FIGURES 19 & 19a CONTROL PANEL AND DUCT HOSE ROUTING FIGURES 20 & 21 EVAPORATOR HARD LINE INSTALLATION FIGURE 22 WIRING DIAGRAMGEN IV WIRING CONNECTION INSTRUCTIONSOPERATION OF CONTROLS.TROUBLE SHOOTINGTROUBLE SHOOTING CONT.EVAPORATOR BRACKET MOUNTING HOLE TEMPLATECENTER LOUVER TEMPLATEEVAPORATOR KIT PACKING LIST

Table of Contents

1970-7 CHEVY CAMARO w/o AC GEN IV 8

AC GEN IV EVAP INSTR PG 2 OF 28 901172 REV A 8/13/07, 1970-78 CAMARO w/o

2

** 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 KIT PACKING LISTEVAPORATOR KIT

561170

No. QTY. PART No. DESCRIPTION

1.2.

11

1

2

744004-VUE781171

GEN IV 4 VENT EVAP SUBCASE1970-78 CAMARO w/o AC GEN IV ACC. KIT

1970-78 CHEVY CAMARO w/o AC GEN IV


ACCESSORY KIT781171 NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.

REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES 3

OFF

DA SH

HOT

FLR

HI

DE F

COLD

A C

GEN IV 4 VENTEVAP. SUB CASE

744004-VUE

IMPORTANT NOTICE-PLEASE READ

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 NEEDEDUSED COMPRESSOR - CONSULT VINTAGE AIR

SERVICE INFO:

SAFETY SWITCHES:

ATTENTION: SYSTEM COMPONENTS: THE COMPRESSOR, EVAPORATOR, CONDENSER & DRIER ARE CAPPED. CAPS MAY BE UNDER PRESSURE WITH DRY NITROGEN; 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 OR BY RUNNING THE ENGINE WITH THE HEATER ON BEFORE EVACUATING. LEAK CHECK AND CHARGE TO SPECIFICATIONS.

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.

THIS KIT DOES NOT CONTAIN HEATER HOSE. YOU MUST PURCHASE 8 FEET OF 5/8” DIA. HEATER HOSE FROM VINTAGE AIR(31800-VUD) OR FROM YOU LOCAL PARTS RETAILER

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)

1970-78 CAMAROw/o FACTORY AIR

1970-78 CHEVY CAMARO w/o AC GEN IV


4

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 WIRING NOTICE-PLEASE READ

G WHEN INSTALLING GROUND LEADS ON EN IV SYSTEMS, THE BLOWER CONTROL GROUNDAND ECU GROUND MUST BE CONNECTED DIRECTLY TO THE NEGATIVE BATTERY POST.

IMPORTANT WIRING NOTICE-PLEASE READ



5

BEFORE STARTING THE INSTALLATION, CHECK THE FUNCTION

OF THE VEHICLE (HORN, LIGHTS,ETC.) FOR PROPER OPERATIONS. STUDY THE INSTRUCTIONS, ILLUSTRATIONS, & DIAGRAMS.



ENGINE COMPARTMENT

CONDENSER ASSEMBLY & INSTALLATIONREFER 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.

COMPRESSOR & BRACKETS

IN MOST INSTANCES THE BELT LENGTHS WILL REMAIN THE SAME. PULLEYS

REMOVE THE FOLLOWING:

OEM HEATERWIRING/VACUUM

HARNESSMOLDED GROMMET

33173-VUI1 ½” PLUG

FIGURE 1a

FIGURE 1

6

HOOD LATCHAND SUPPORT

ASSEMBLY

BATTERY &BATTERY TRAY

INNERFENDER PANEL

OUTERFENDER HEATER HOSE

CLAMP

OEMBLOWER MOTOR

ASSEMBLY

BATTERY AND BATTERY TRAY (RETAIN). SEE FIGURE 1.DRAIN RADIATORHOOD LATCH ASSEMBLY (RETAIN) INCLUDING HOOD LATCH SUPPORTHEATER BLOWER MOTOR ASSEMBLY (DISCARD). TO REMOVE THE HEATER BLOWER MOTORASSEMBLY (UNDER HOOD) AND THE AIR DISTRIBUTION SYSTEM (UNDER DASH), THE FACTORY MANUAL INDICATES DOING THE FOLLOWING: "REMOVE RIGHT LOWER ROCKER MOLDING. REMOVE LOWER FENDER ATTACHING BOLTS. REMOVE SKIRT TO FENDER AND SKIRT TO REINFORCEMENT SCREWS. PULL OUT ON LOWER PORTION OF FENDER, MOVING THE SKIRT AWAY FROM THE FENDER FLANGE AND FIREWALL. BLOCK THE SKIRT WITH A 2 x 4 BLOCK OF WOOD".* TO AVOID DAMAGE TO PAINT AND SHEET METAL, AND FOR EASE OF REMOVAL AND REPLACEMENT OF COMPONENTS; VINTAGE AIR SUGGESTS THAT THE RIGHT FENDER BE REMOVED AND INNER PANEL BE LOWERED. SEE FIGURE 1.OEM HEATER HOSES (DISCARD). SEE FIGURE 1.REMOVE OEM HEATER WIRING/VACUUM HARNESS MOLDED GROMMET. SEE FIGURE 1.INSTALL 1 ½” PLUG IN FIREWALL. SEE FIGURE 1a BELOW.

RADIATOR

REMOVE THE FOLLOWING:GLOVE BOX DOOR. SEE FIGURE 3.GLOVE BOX SHELL (DISCARD, RETAIN SCREWS). SEE FIGURE 2.HEATER ASSEMBLY AND ALL RELATED DUCTING (DISCARD), RETAIN SCREWS. SEE FIGURE 3.DR/ PASS LOUVER OUTLETS (RETAIN). INSTRUMENT PANEL MUST BE REMOVED TO GET TO LEFT OUTLET, AND CONTROL PANEL (SEE FIGURE 3).CONTROL PANEL ASSEMBLY (RETAIN CONTROL PANEL) SEE FIGURE 3.REFER TO CONTROL PANEL CONVERSION KIT INSTRUCTIONS FOR INSTALLATION OF CONTROLS.REMOVE DR/PASS SIDE KICK PANEL (RETAIN). DISCONNECT PASS SIDE FRESH AIR CABLE FROM PANEL (SEE FIGURE 3). DISCONNECT DR/ PASS CABLE FROM ASTRO- VENTILATION DUCTING (DISCARD). REMOVE OEM DEFROST DUCT ASM (DISCARD).

NOTE: REMOVAL OF DASHBOARD IS REQUIRED TO INSTALL THE EVAPORATOR. VINTAGE AIR

RECOMMENDS THAT YOU UTILIZE THE FACTORY SERVICE MANUAL WHEN YOU DISASSEMBLE

AND REASSEMBLE THE DASHBOARD.

PASSENGER COMPARTMENT



FIGURE 2

FIGURE 3

GLOVE BOXSHELL

GLOVE BOXDOOR PASS SIDE

KICK PANEL

ASTRO

FRESH

DR SIDE KICK PANEL

HEATER ASSEMBLY

DRIVER SIDELOUVER

PASSENGER SIDELOUVER

PASS SIDEASTRO

VENTILATIONDUCT

INSTRUMENTPANEL

DR SIDE ASTRO VENTILATION

DUCT

CONTROLPANEL

7

EVAPORATOR MOUNTING HOLES

LOOSEN WIRE LOOM MOUNTING SCREWS. SEE FIGURE 4 BELOWCUT OUT TEMPLATE PROVIDED ON PAGE 26. SLIDE THE TOP OF TEMPLATE UNDER WIRE LOOMON INNER COWL. ALIGN THE (3) HOLES IN TEMPLATE WITH THE OEM HOLES IN INNER COWL. ALIGN TOP EDGE OF THE TEMPLATE ALONG THE TOP EDGE OF INNER COWL AS SHOWN BELOW IN FIGURE 4.ONCE TEMPLATE IS ALIGNED CORRECTLY AND TAPED INTO PLACE MARK MOUNTING HOLES ON INNER COWL. ONCE HOLES ARE MARKED IN THE CORRECT LOCATION REMOVE TEMPLATE, AND DRILL (2) 3/16” HOLES IN INNER COWL FOR EVAPORATOR FRONT MOUNTING BRACKET. SEE FIGURE 4 BELOW.RE-TIGHTEN WIRE LOOM MOUNTING SCREW.



DEFROST DUCT/ FRESH AIR COVER INSTALLATION

INSTALL THE DEFROST DUCTS UNDER DASH ON OEM DEFROST DUCT MOUNTING FLANGEAS SHOWN IN FIGURE 5 BELOW. SECURE USING 10/24 x 3/8” PAN HEAD SCREWAND 10/24 NUT w/ STAR WASHER.APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE DR/ PASS SIDE FRESH AIR CAPS AS SHOWN IN FIGURE 5a BELOW.INSTALL DR/ PASS SIDE FRESH AIR CAPS SECURE USING OEM SCREWS SEE FIGURE 5 BELOW

DRIVER SIDEDEFROST

DUCT627171-PCA

10/24 NUT w/ STAR WASHER

10/24 X 3/8”PAN HEAD

SCREW

OEM DEFROST DUCT

MOUNTING FLANGE

PASSENGER SIDEDEFROST

DUCT627171-PCA

PASS SIDE FRESH AIR

CAP498852

SILICONE

OEM SCREWS

OEM SCREWS

DR SIDE FRESH AIR

CAP498851

8

INNER COWL

VIEW SHOWNTHROUGH DASH

TOP OF DASH

OEM HOLES

SPEAKERBRACKET

WIRE LOOM

PART 1

PART 2

1970-73 CAMRO w/o ACEVAPORATOR BRACKET

MOUNTING HOLES 1970-73 CAM RO w/o ACEVAPORATOR BRACKET MOUNTING HOLES

PLACE TOP EDGE OF TEMPLATE ALONG BEND OF INNER COWL PLACE TOP EDGE OF TEMPLATE ALONG BEND OF INNER COWL

OEM HOLE

OEM HOLE

OEM HOLE

TEMPLATE

MARK MOUNTING

HOLES

FIGURE 5FIGURE 5a

FIGURE 4



HOSE ADAPTER INSTALLATION

INSTALL (2) S-CLIPS ON HOSE ADAPTERS AS SHOWN IN FIGURE 6 BELOW.

INSTALL DRIVER & PASSENGER SIDE HOSE ADAPTERS ON OEM LOUVERS. SEE FIGURE 6 BELOW

9

1/4-20 x 1”BOLT w/ WASHER

FRESH AIR CAP INSTALLATIONAPPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE FRESH AIR CAP AS SHOWN IN FIGURE 7, BELOW.

ATTACH FRESH AIR CAP TO FIREWALL USING A 1/4-20 x 1" BOLT AND WASHER, SEE FIGURE 7, BELOW.

SILICONE

BACK SIDEOF FRESH AIR

CAP

FRESH AIRCAP

HOSE ADAPTER

(2) S-CLIPS

FIGURE 6

FIGURE 7


AC GEN IV EVAP INSTR PG 10 OF 28901172 REV A 8/13/07, 1970-78 CAMARO w/o

EVAPORATOR INSTALLATION ON A WORK BENCH, INSTALL EVAPORATOR REAR BRACKET AND HARDLINES WITH PROPERLY LUBRICATED O-RINGS. (SEE FIGURE 16, PAGE 15, AND FIGURES 22, PAGE 20.)

INSTALL FRONT MOUNTING BRACKET ON EVAPORATOR USING (2) 1/4-20 x 1/2” HEX BOLTS AND TIGHTEN ASSHOWN IN FIGURE 9 BELOW.

LIFT EVAPORATOR UNIT UP UNDER THE DASHBOARD SEE FIGURE 11, PAGE 11. SECURE LOOSELY TO THE FIREWALL FROM THE ENGINE COMPARTMENT SIDE USING A 1/4-20 NUT AND WASHER, SEE FIGURE 11, PAGE 11.

USING (2) #14 x 3/4” SHEET METAL SCREW SECURE THE FRONT EVAPORATOR MOUNTING BRACKET TO THE INNER COWL. SEE FIGURE 11, PAGE11.

VERIFY THAT EVAPORATOR UNITIS LEVEL AND SQUARE TO THE DASH, THEN TIGHTEN ALL MOUNTING BOLTS.(NOTE: TIGHTEN THE BOLT ON FIREWALL FIRST, THEN THE FRONT MOUNTING BRACKETSCREWS.)

FIREWALL COVER INSTALLATION

APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE FIREWALL COVER AS SHOWN IN FIGURE 10, PAGE 11.

FROM INSIDE THE CAR, INSTALL FIREWALL COVER ON FIREWALL SEE FIGURE 10, PAGE 11. FROM THE ENGINE COMPARTMENTSECURE FIREWALL COVER TO FIREWALL USING (4) 1/4-20 x 1” HEX BOLTS WITH WASHER. SEE FIGURE 10, PAGE 11

(2)1/4-20 x ½”HEX BOLT

10

KICK PANEL INSTALLATION

KICK PANEL

OEMSCREWS

OEM LEVER HOUSING

FRESH AIR DOOR

1/4” BEADOF

SILICONE

FIGURE 8a

FIGURE 8

FIGURE 9

REMOVE THE KICK PANEL BY REMOVING THE (5) OEM SCREWS, DISCONNECT THE FRESH AIR DOOR FROM THE LEVER HOUSING, CLOSE FRESH AIRDOOR ASSEMBLY IN KICK PANEL AND SEAL DOOR w/ 1/4” BEAD OF SILICONE AROUND DOOR AS SHOWN IN FIGURE 8.

INSTALL KICK PANEL USING OEM SCREWS AS SHOWN IN FIGURE 8a.



11

FIREWALL COVER INSTALLATION

EVAPORATOR INSTALLATION

ENGINE COMPARTMENT

SIDE OF FIREWALL

FIGURE 10

FIREWALLCOVER

(4) 1/4-20 x 1”HEX BOLT

w/ WASHER

BOLTS MOUNTFROM ENGINECOMPARTMENT

SIDE OF FIREWALL

BACK SIDEOF FIREWALL

COVER

SILICONE

NOTE: FIREWALL COVER MOUNTING HOLES MUST BE ENLARGED. ENLARGE EXISTING HOLES

IN FIREWALL TO 5/16”

VIEW SHOWN FROM INSIDE CAR, THROUGH

DASH

FIREWALL

(2) #14 x 3/4”SHEETMETAL

SCREW

1/4-20 NUTw/ WASHER

FIGURE 11

INNER COWL



FIGURE 12

LOCATE EVAPORATOR DRAIN ON BOTTOM OF EVAPORATOR CASE.

IN-LINE WITH THE DRAIN, LIGHTLY MAKE A MARK ON THE FIREWALL. MEASURE ONE INCH DOWN AND DRILL A 5/8” HOLE THROUGH THE FIREWALL. SEE FIGURE 12.

INSTALL DRAIN HOSE TO BOTTOM OF EVAPORATOR UNIT AND ROUTE THROUGH FIREWALL. SEE FIGURE 12.

DRAIN HOSE INSTALLATION

1” DRAINDRAINHOSE

12

FIREWALL CAP INSTALLATION

APPLY A 1/4” BEAD OF SILICONE AROUND THE BACK SIDE OF THE FIREWALL CAP AS SHOWN IN FIGURE 13 BELOW.

PASS LINES THROUGH FIREWALL CAP, AND SECURE WITH (3) #10 x ½” HEX SHEETMETAL SCREWS.SEE FIGURE 13 BELOW.

INSTALL 3/8 GROMMET SEE FIGURE 13 BELOW.

SILICONE

BACKSIDEOF FIREWALL

CAP

(3) 18247-VUB#10 x ½” HEX

SHEETMETAL SCREW

FIREWALL CAP

3/8 GROMMET33144-VUI

FIGURE 13

VIEW SHOWN FROMENGINE COMPARTMENT

1970-78 CAMARO w/o ACCENTER LOUVERTEMPLATE



13

CENTER LOUVER MOUNTING HOLES

CUT OUT TEMPLATE PROVIDED ON PAGE 27. SLIDE THE TEMPLATE UNDER THE DASH AS SHOWN BELOWIN FIGURE 14. ALIGN THE LEFT AND RIGHT SIDE OF TEMPLATE WITH THE CREASE IN THE DASH AS SHOWN BELOW IN FIGURES 14 & 14a. ALIGN BOTTOM EDGE OF THE TEMPLATE ALONG THE BOTTOMEDGE OF DASH AS SHOWN BELOW IN FIGURES 14 & 14a.

ONCE TEMPLATE IS ALIGNED CORRECTLY AND TAPED INTO PLACE, MARK MOUNTING HOLES ON DASH. ONCE HOLES ARE MARKED IN THE CORRECT LOCATION REMOVE TEMPLATE AND DRILL (2) 3/16” HOLES IN DASH FOR THE CENTER LOUVER BEZEL. SEE FIGURE 14a BELOW.

OEMHOLE

1970-78 CAMARO w/o ACCENTER LOUVERTEMPLATE

FIGURE 14

FIGURE 14a



14

CENTER LOUVER INSTALLATION

CENTERLOUVER

CENTERLOUVER BEZEL

WASHER

CENTERLOUVER BEZEL

(2)10/32 x 3/4” PAN HEAD SCREWS

w/ 10/32 NUT w/ STAR WASHER

FINAL INSTALLATION

FINAL INSTALLATION

w/ CENTER CONSOLE(IF EQUIPPED)

INSTALL THE CENTER LOUVER BEZEL UNDER THE DASH AND SECURE USING (2) 10/32 x 3/4” PAN HEAD SCREWS w/ WASHER AND10/32 NUT w/STAR WASHER AS SHOWN BELOW IN FIGURE 15.

INSTALL THE CENTER LOUVER INTO THE BEZEL AS SHOWN BELOW IN FIGURE 15.

REINSTALL CENTER CONSOLE (IF EQUIPPED). SEE FIGURE 15a BELOW.

FIGURE 15

FIGURE 15a



LUBRICATING O-RINGS

#6 O-RING

#8 O-RING #10 O-RING

O-RING

TWIST WITHTHIS

WRENCH

HOLD WITHTHIS

WRENCH

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,SLIDE OVERMALE INSERT TOSWAGED LIP

MALEINSERT

FEMALENUT

FIGURE 16

LOCATE THE #8 COMPRESSOR A/C HOSE. LUBRICATE (2) #8 O-RINGS (SEE FIGURE 16 ) AND CONNECT THE 135° w/ 134a SERVICE PORT FITTING TO THE #8 DISCHARGE PORT ON THE COMPRESSOR. ROUTE THE STRAIGHT MALE FITTTING TO THE #8 CONDENSER HARDLINE COMING THROUGH THE RADIATOR CORE SUPPORT. SEE FIGURE 18, PAGE 17. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 16 ABOVE.

LOCATE THE #10 COMPRESSOR A/C HOSE. LUBRICATE (2) #10 O-RINGS AND CONNECT THE 135° FITTING TO THE #10 SUCTION PORT ON THE COMPRESSOR, ROUTE THE STRAIGHT FEMALE w/ 134a SERVICE PORT FITTING TO THE #10 EVAPORATOR HARDLINE COMING THROUGH THE FIREWALL. SEE FIGURES 17, PAGE 16 & FIGURE 18, PAGE 17. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 16. (NOTE: WRAP THE #10 FITTING CONNECTIONS WITH PRESS TAPE. SEE FIGURE 17a, PAGE 16.

LOCATE THE #6 EVAP/DRIER HARDLINE AND LUBRICATE (2) #6 O-RINGS AND CONNECT THE HARDLINE TO THE #6 HARDLINE ON FENDERWELL COMING FROM DRIER. ATTACH THE OTHER END OF THE HARDLINE WITH LUBRICATED O-RING TO THE #6 EVAPORATOR HARDLINE COMING THROUGH THE FIREWALL. SEE FIGURES 17, PAGE 16 & FIGURE 18, PAGE 17. TIGHTEN EACH FITTING CONNECTION AS SHOWN IN FIGURE 16, ABOVE.

, ABOVE

STANDARD HOSE KIT

REFER TO SEPARATE INSTRUCTIONS INCLUDED WITH MODIFIED HOSE KIT.

MODIFIED A/C HOSE KIT

USE A #2 ADEL CLAMP TO SECURE THE #6 EVAP/CORE HARDLINE TO THE INNER FENDERWELL AS SHOWN IN FIGURE 18b, PAGE 17. SECURE THE ADEL CLAMP TO THE INNER FENDER USING A 10-32 x ½” PAN HEAD SCREW w/ NUT.

15



16

#10 SUCTIONLINE (INSULATED)

FIREWALL COVER

PRESSTAPE

EXPANSIONVALVE

FLOW O-RING

#6 LIQUID LINE

#10 SUCTION HOSE

HEATER HOSE

TO WATER PUMP

FIGURE 17

PRESS TAPEFIGURE 17a

FROM HTR CNTRL VLV

HEATER HOSE & HEATER CONTROL VALVE INSTALLATIONROUTE HEATER HOSE FROM THE WATER PUMP TO THE HEATER LINE COMING THROUGH THE FIREWALLAS SHOWN IN FIGURE 17, BELOW. SECURE USING HOSE CLAMPS.ROUTE HEATER HOSE FROM THE INTAKE TO THE HEATER LINE COMING THROUGH THE FIREWALLAS SHOWN IN FIGURE 17, BELOW. NOTE: INSTALL HEATER CONTROL VALVE IN-LINE WITH INTAKE MANIFOLD(PRESSURE SIDE) HEATER HOSE, SECURE USING HOSE CLAMPS AS SHOWN IN FIGURE 17. NOTE PROPER FLOW DIRECTION.) HEATER HOSE COMING FROM THE INTAKE & THE #6 EVAP HARDLINE TO THE INNER FENDER USING A #4 & #2 ADEL CLAMP. SECURE CLAMPS USING A 10-32 x ½” PAN HEAD SCREW w/ NUT. SEE FIGURE 18b, PAGE 17.

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INN

ER

FEN

DERW

ELL

FIG

UR

E 1

8b

AC

& H

EA

TER

HO

SE R

OU

TIN

G

#1

0

SU

CTIO

NH

OSE

#1

0 A

DEL

CLA

MP

#1

0 A

DEL

CLA

MP

FEN

DER

WELL

10

-32 x

½PA

N

HEA

D S

CREW

w/

NU

T

10

-32 x

½PA

NH

EA

D S

CREW

w/

NU

T

FIG

UR

E 1

8a

#2 A

DEL

CLA

MP

INO

UT

17

NO

TE:

VIN

TAG

E A

IR S

YSTEM

S R

EQ

UIR

E

(2)

5/8

HO

SE N

IPPLE

S (

NO

T S

UPPLI

ED

)



GLOVE BOX INSTALLATION

INSTALL GLOVE BOX PROVIDED, SECURE WITH #8 SCREWS THROUGH OEM HOLES. SEE FIGURE 19.

INSTALL GLOVE BOX DOOR.

FIGURE 19a

INSTALL DUCT HOSES AS SHOWN IN FIGURE 21, PAGE 19

ROUTE A/C WIRES THROUGH 5/8 GROMMET AS SHOWN ON FIGURE 19a(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 21, PAGE 19 (WIRE ACCORDING TO WIRING DIAGRAM ON PAGE 21 & 22.)

INSTALL GLOVE BOX (SEE FIGURE 19)

REINSTALL ALL PREVIOUSLY REMOVED ITEMS (BATTERY TRAY & BATTERY).

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 IN WHICH 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 23.

FINAL STEPS

GLOVE BOX

18

FIREWALL COVER

GROMMET

FIGURE 19

CONTROL PANEL & DUCT HOSE ROUTING

BACKSIDE OF PC BOARD

ASSEMBLY

CONTROL PANELHARNESS

FROM ECU 232007-VUR



FIGURE 21

FIGURE 20

19

DRIVER SIDE

LOUVER

PASSENGER

SIDE LOUVER

CENTER VENT

PASS. SIDE

CENTER VENTDRIVER SIDE

CENTER LOUVER

DRIVER SIDE2 ½” x 12”

DRIVER SIDELOUVER

2 ½” x 43”

CENTER LOUVERPASSENGER SIDE

2 ½” x 15”

PASSENGER SIDEDEFROST DUCT

2” x 12”

PASSENGER SIDELOUVER

2 ½” x 48”

DRIVER SIDEDEFROST DUCT

2” x 18”

AC GEN IV EVAP INSTR PG 20 OF 28 901172 REV A 8/13/07, 1970-78 CAMARO w/o 20

FIG

UR

E 2

2

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ATER P

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5.)

182

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WIRING DIAGRAM

85 8586 86

GROUND

DASH/FLOOR

DEFROST/PLENUM

TEMPERTURE BLEND

COMPRESSOR

WHT/GRN

WHT/YEL

WHT/RED

RED

WHTBACKLIGHT NEG

FAN WIPER

MODE WIPER

TEMP WIPER

5V-SW

GND

BACKLIGHT POS

AC ANNUNCIATOR

30 AMP

BLK

BLK

DK BLUDK BLU

RED

RED

RED RED RED

RED

RED

RED

GRY

GRN

LT BLUYEL/BLK

GRN

WHT

WHT

WHT

ORA

VIO

WHT

ORA

GRY

RED

WHT

N/A TACHDASH LAMP

(FOR PANEL BACK LIGHT)

N/A PRGM

JM8

JM9

JM1

JM2

JM6

JM5

JM4

JM3

GRY

BLK

BLK

YEL

JF8

VIEWED FROM WIRE SIDE

VIEWED FROM BOARD TOP SIDE

NOT USED

JF8

TAN

BLK

ORA

TAN

GENIV WIRING DIAGRAM

REVISION B, 2006-05-04

CMPR

= CHASSIS NOTE:

BATTERY

POS

NEG

BLOWER MOTOR

BAT-POS BLWR-POS

BLWR-NEGBAT-NEG

SH

LD

SH

LD

PW

MBSC

GEN-IV ECU

CIRCUITBREAKER

HCV

30 30

87 87

RELAYRELAY

HEATERCONTROL

VALVE

WIDE OPENTHROTTLE SWITCH

(OPTIONAL)

EVAPORATORTEMPERATURESENSOR

STEPPERRED

GRN

GRN

YEL

BLK

BLU

STEPPERRED

GRN

GRN

YEL

BLK

BLU

STEPPERRED

GRN

GRN

YEL

BLK

BLU

SWITCH CONTACTS CLOSE ONLY ATFULL THROTTLE,WHICH DISABLESAC COMPRESSOR

WIDE OPEN THROTTLE OPTIONAL

BINARY OR

DRIER

TRINARY SAFETY SWITCH

VIO

NOTE: VINTAGE AIR RECOMMENDSMOUNTING CIRCUIT BREAKER UNDER THE

HOOD IN THE ENGINE COMPARTMENTAND AS CLOSE TO THE BATTERY AS POSSIBLE.

BAT

RUN

IGNITION

+ 12vSWITCH

21

HEA

TER

CO

NTRO

LV

ALV

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ELA

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TER

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(IG

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ION

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RED

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RED

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WH

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WH

T

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LET

WH

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WH

T

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V

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LWA

YS M

OU

NT C

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UIT

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EA

KER

UN

DER

TH

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D

IN T

HE E

NG

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OM

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EN

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LOSE T

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TTER

Y A

S P

OSSIB

LE.


1970-7

CA

MA

RO

w/o

AC

GEN

IV

8

22

OPERATION OF CONTROLS

NOTE: WHEN BATTERY POWER IS FIRST CONNECTED TO THE ECU, THE COMPUTER GOES THROUGH AN INITIALIZATIONSEQUENCE. THIS INITIALIZATION MAY TAKE UP TO 30 SECONDS. A LOW BATTERY OR DISCONNECTING THE BATTERY MAY ALSO TRIGGER A RE-INITIALIZATION. DURING START UP, A LOW BATTERY MAY DROP BELOW 7 VOLTS, TRIGGERING RE-INITIALIZATION.

BLOWER SPEED THIS LEVER CONTROLS

THE BLOWER SPEED, FROM OFF TO HI

BLUE AC INDICATOR

LIGHT

A/C THERMOSTAT IN A/C MODE SLIDE THE THERMOSTAT LEVER ALL THE WAY RIGHT TO THE COLD POSITION,FOR MAXIMUM COOLING. BLUE AC INDICATOR

LIGHT WILL COME ON ONLY WHEN AC COMPRESSOR IS ENGAGED

(SLIDE LEVER LEFT OR RIGHT TO ADJUST DESIRED TEMPERATURE)

LEVER

A/C THERMOSTAT IN HEAT 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 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 TO

THE “DASH” POSITION

LEVER

MODE SLIDE THE LEVER TOTHE “FLR” POSITION

(SLIDE THE LEVER TO THE LEFT OR RIGHT,

TO ADJUST DESIRED DASH/ FLR/ DEF LOCATION

LEVER MODE SLIDE THE LEVER TOTHE “DEF” POSITION

LEVER

A/C MODE

DEFROST MODEHEAT MODE

MODELEVER

THERMOSTATLEVER

SYSTEM OFF

BLOWER SPEED



DASH

DASH DASH

DASH

HOT

HOT HOT

HOT

23

TRO

UBLE S

HO

OTIN

G IN

FO

RM

ATIO

N

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MP

TO

MC

ON

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ION

CH

EC

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NS

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25

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1970-78 CAMARO w/o ACEVAPORATOR BRACKET

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26 901172 REV A 8/13/07, 1970-78 CAMARO w/o AC GEN IV EVAP INSTR PG 26 OF 28

1970-7

8 C

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27

EVAPORATOR KIT PACKING LISTEVAPORATOR KIT

561170

No. QTY. PART No. DESCRIPTION

1.2.

11

1

781171744004-VUE

1970-78 CAMARO w/o AC GEN IV ACC. KITGEN IV 4 VENT EVAP SUBCASE



CHECKED BY:PACKED BY:

DATE:

2

ACCESSORY KIT781171 NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.

REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES

OFF

DA SH

HOT

FLR

HI

DE F

COLD

A C

GEN IV 4 VENT EVAP. SUB CASE

744004-VUE

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