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Classic AutoAir 1971-1973 Mustang A/C system, Installation Manual

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Classic AutoAir 1971-1973 Mustang A/C system Installation Manual Download Page 26

26

During installation of the hoses be aware of the eventual movement 

of the wiper arm components. Also, the process for installing the 

center louver vent will require a small amount of cutting. This is 

outlined on the next page.

TECH TIPS

The smoother the route of the flex hoses 

the better the airflow.

GOOD IDEA

www.classicautoair.com  •  

866.435.7801

Attach louver adaptors to the back 
side of OEM louvers, both sides. 
S-Clips will hold them in place. 

Route supplied flex hoses as 
shown below. Take your time and 
route them so they don’t become 
kinked or torn.

During installation of the hoses be 
aware of the eventual movement of 
the wiper arm components.

 

Adaptor

OEM VENT

Summary of Contents for 1971-1973 Mustang A/C system

Page 1: ...Installation Manual 1971 1973 Mustang DOCUMENT 1 2028 2013 ClassicAutoAir 2 1vs b...

Page 2: ......

Page 3: ...bined experience achieved thru thousands of successful installations and feedback from customers like you Please remember that our 1 goal is that you ll have a successful installation and a system tha...

Page 4: ...installation you might find the opportunity to repair or upgrade non working or out of date components When you re ready to start the installation DISCONNECT THE BATTERY FIRST Drain the radiator Retai...

Page 5: ...g over it The blower fan moves cool air out into the car interior Compressor The compressor pumps and circulates the refrigerant through the system Condenser The condenser is a heat exchanger mounted...

Page 6: ...ion Compressor State 1 2 3 4 5 6 7 8 9 10 11 Face A C 100 Defrost 100 Floor 20 Defrost 80 Floor 40 Defrost 60 Floor 60 Defrost 40 Floor 80 Defrost 20 Face 80 Defrost 20 Face 60 Defrost 40 Face 40 Defr...

Page 7: ...s attached to the Vent Heat door see figure 3 Disconnect the electrical harness from the assembly Also remove attachment screw located in front of the air inlet see figure 4 FIGURE 4 FIGURE 3 FIGURE 2...

Page 8: ...OR and store safely to reuse or recycle accordingly Cut heater hose approximately 1 from firewall Also to prevent forgetting to refill the coolant when the installation is completed do not put the cap...

Page 9: ...Supply Cable Integrators Ground Ground Ground OEM Power Supply ECU Pressure Switch engine compartment Thermostat Relay Blower Switch Connection Fan Plug Blower Switch Bracket THESE ARE THE PARTS YOU...

Page 10: ...nal blower switch and set aside these will not be reused see figure 8 3 Attach the new blower switch bracket to the top part of the back of the face plate see figure 9 10 utilizing the OEM screw and t...

Page 11: ...nd of integrator wire over the end of the control head lever see figure B Using the OEM screw mount the integrator to the control head pedestal as shown in figure D Make sure orientation is correct us...

Page 12: ...12...

Page 13: ...ps Screws Evaporator Support Bracket Fresh Air Inlet Block Off Defrost Heat Duct Assembly One 1 2 Washer One J Clip One Male Spade Connector THESE ARE THE PARTS YOU WILL FIND IN BAG KIT B You will use...

Page 14: ...m left mounting hole in the firewall that attached the original heater motor TEMPLATE NOTIFICATION A handy drilling template is included in this manual example shown in figure 17 Tape the template to...

Page 15: ...side see figure 17A Attach with three 10 16 x 3 4 Tek Screws Locate the mounting tab location as shown and attach the 1 4 20 J clip supplied see figure 17B Remove evaporator unit from box and place o...

Page 16: ...important to insure proper drainage of condensation On back side of the evaporator is a mounting bracket with a 1 4 20 J clip This bracket will go flush with the inside firewall and you will secure t...

Page 17: ...22 Locate in the Bag Kit B the Evaporator Mounting Bracket and attach to evaporator unit using two 10 10 x 5 8 Phillips screws Attach other end to the cowling with a 10 16 x 3 4 Tek Screw see figure 2...

Page 18: ...hardware during the next series of installation steps Illustrations NOT shown actual size Clear Plastic Drain Tube Electronic Water Control Valve Firewall Block Off Two 1 1 4 Cap Plugs Six Worm Gear C...

Page 19: ...e supplied worm gear clamp Attach to the inlet side of the water valve using another supplied hose clamp Attach a heater hose from the outlet side of the electronic water valve and route to the connec...

Page 20: ...d hardware during the next series of installation steps Illustrations NOT shown actual size Five 10 16 x 3 4 Tek Screws Wire Harness System FACE FLOOR POWER CO NT RO L WA TE R VA LV E DEFROST The ECU...

Page 21: ...ith connections at each end Plug the harness with YELLOW band into the YELLOW ECU port and the other end into the servo motor on the main unit motor is marked with YELLOW INDICATOR Repeat this process...

Page 22: ...i r e ECU Ground Ground Ground Servo for Defrost Ducts Servo for Face Floor Ducts Thermostat Evaporator Pressure Switch Compressor Electronic Water Valve Blower Switch To 12V Power Supply Cable Integr...

Page 23: ...Approx 30 Seconds Later You may be able to hear the internal door s move back and forth LEDOFF 1 Second Later CONTROL POWER DEFROST WATER VALVE FACE FLOOR Ca libration Ke y CONTROL POWER DEFROST WATER...

Page 24: ...r PN 2 1028 1 Center Dash Vent PN 1 1028 2 Two Duct Hoses 2 I D Face Duct Assembly Two Duct Hoses 2 I D Bag G Bag F Four Zip Ties Four 10 10 x 5 8 Screws Four Zip Ties Four Zip Ties Two Duct Hoses 2 I...

Page 25: ...rim flange as needed Attach flex hoses to the adapter and route to the assembly on the top of the evaporator see figure 29 The face duct assembly comes s clips pre installed which allow you to install...

Page 26: ...TIPS The smoother the route of the flex hoses the better the airflow GOOD IDEA www classicautoair com 866 435 7801 Attach louver adaptors to the back side of OEM louvers both sides S Clips will hold t...

Page 27: ...o the hole and then attach the flex hose Once the hole is the right size insert the new center louver and attach the flex hose using ty wraps to secure Route to the face duct asembly on the evaporator...

Page 28: ...e controls still move freely and that nothing is loose or hanging down The interior of your car should look pretty much the same as before you started or better Plus you probably got to know the under...

Page 29: ...ht Condenser Lower PN PN 0046 51 Condenser PN 11 1043 Three Refrigerant Hoses Pressure Switch Splice and Bullet Connector Pressure Switch Harness Liquid Tube Drier Drier Bracket Four Zip Ties 8 1 3 3...

Page 30: ...and routing the high low pressure lines and the liquid line Since much of this is installed in the OEM location for the condenser you ll need to remove the center grill section and latch support asse...

Page 31: ...the drier on the right hand side of the condenser First insert the drier into the drier mounting bracket it s basically a sleeve for the drier Attach the drier liquid tube to the drier and also to th...

Page 32: ...6 o ring and a few drops of mineral oil attach liquid tube to drier and pass through the opening in the radiator core support Using 1 8 o ring and a few drops of mineral oil attach discharge tube to t...

Page 33: ...the 6 liquid hose 5 16 to the connection coming thru the core support and route along the underside of the fender struts around the engine and to the connection at the firewall on the evaporator unit...

Page 34: ...e insure that you have a 50 50 mix of distilled water and antifreeze The heater coil MUST be purged cycle heater control valve to make sure no water without antifreeze is in the heater coil before you...

Page 35: ...ice it restricts the flow of air that can pass through it which gives the illusion of the air not functioning The common cause of external freezing is the setting of the thermostat and the presence of...

Page 36: ...Step 2 IF the low side pressures are normal and the high side pressures are high then there might be an airflow issue continue to next step To test air flow to Condenser do the following three tests 1...

Page 37: ...37 OEM HOLE CUT 4 DIAMETER HOLE DRILL 5 8 HOLE DRILL 9 32 HOLE Lower Right OEM Heater Hose Hole 1971 1973 TEMPLATE THIS IS FROM THE INSIDE OF CAR IF YOU PRINTED THIS MANUAL PLEASE READ THIS...

Page 38: ...38...

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