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an ISO 9001:2015 Registered Company

1950-53 Chevrolet Pickup 

Evaporator Kit

(754562)

905458 REV E 07/10/18, PG 1 OF 29

18865 Goll St. San Antonio, TX 78266  

Phone: 800-862-6658  

Sales: [email protected]

Tech Support: [email protected]

www.vintageair.com

Summary of Contents for 754562

Page 1: ...red Company 1950 53 Chevrolet Pickup Evaporator Kit 754562 905458 REV E 07 10 18 PG 1 OF 29 18865 Goll St San Antonio TX 78266 Phone 800 862 6658 Sales sales vintageair com Tech Support tech vintageai...

Page 2: ...Evaporator Installation Cont Rotary Pot Installation Control Panel Louver Bezel Assembly Installation Evaporator Installation Final Driver Side Under Dash Louver Installation Heater Control Valve Ins...

Page 3: ...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...

Page 4: ...system This is especially important with the receiver drier Additionally when caps are removed for assembly BE CAREFUL Some components are shipped under pressure with dry nitrogen Evacuate the System...

Page 5: ...sensitive to voltage spikes on the power leads which can cause unexpected resets strange behavior and or permanent damage Vintage Air strives to harden our products against these types of electrical n...

Page 6: ...Remove glove box door retain Remove glove box discard but retain OEM screws Disconnect all wires and cables from OEM control panel discard Disconnect all wires and cables from OEM heater control knobs...

Page 7: ...n 1 2 Using a 6 x 3 8 pan head screw attach 18 inches of 2 duct hose to the passenger side defrost duct See Photo 1 below Attach the remainder of the duct hose to the driver side defrost duct Install...

Page 8: ...irect the straight end of the hose to the hole on the firewall Using a permanent marker make a mark on the side of the fitting that faces the front of the truck See Photos 3 4 below NOTE This hose wil...

Page 9: ...er hose fitting to water pump onto the evaporator with a properly lubricated O ring See Photo 3 Figure 1 below Firewall Bracket and Heater Hose Fitting Installation Figure O ring Installs Over Male In...

Page 10: ...1 2 below and Figure 1 Page 9 Using a properly lubricated O ring connect the 90 fitting on the 10 A C hose to the 10 suction port on the evaporator Direct the hose down and under the blower and out of...

Page 11: ...the firewall using 2 1 4 20 x 3 4 bolts 2 flat washers and 2 nuts with star washers See Photo 1 below Mark and drill 2 5 16 holes through the upper and lower passenger side mounting holes in the firew...

Page 12: ...install a bolt into the top hole above the hoses on the firewall and into the evaporator bracket This will help hold the bracket to the firewall while the rubber boot is being installed over the hoses...

Page 13: ...or attached to the firewall hold the evaporator cowl brace bracket up to the cowl and evaporator to locate the approximate location of the 7 32 hole to be drilled from the top of the dash under the de...

Page 14: ...them into the louver bezel as shown below Tie wrap the wires to the rotary pots as shown below Blower Speed Mode Control Temperature Control Front View 3 Rotary Pot Knobs 3 Washers Louver Bezel Temper...

Page 15: ...the predrilled holes on the louver bezel with the 2 OEM mounting holes under the dash C Secure the control panel louver bezel assembly under the dash using 2 10 32 x 3 4 pan head screws 4 3 16 flat wa...

Page 16: ...rew 2 3 16 flat washers and a 10 32 nut with star washer See Photo 1 and Figure 1 below NOTE Install this screw upward from the louver bezel Check that the evaporator unit is level at the passenger si...

Page 17: ...the firewall cut the heater hose located at the 12 o clock position 6 from the firewall Slide a hose clamp over the hose coming out of the firewall push the valve onto the hose and tighten the clamp C...

Page 18: ...properly lubricated O ring connect the straight fitting on the 8 A C hose to the 8 hardline from the condenser Connect the 135 fitting to the compressor See Photo 2 below and Figure 1 Page 9 Connect t...

Page 19: ...nd hose to ensure proper positioning and remove the fitting from the compressor Crimp the fitting onto the hose and permanently connect to the compressor using a properly lubricated O ring See Photos...

Page 20: ...he ECU Duct hoses may sweat and drip onto into the ECU causing a malfunction Passenger Side Defrost Duct 2 x 18 Plug From Control Wiring Harness 232002 VUA Plug From Wiring Harness 232600 VUA From Con...

Page 21: ...ording to the wiring diagrams on Pages 24 25 Run the red and 2 white wires to the battery box in the passenger compartment Using 2 10 32 x 3 4 pan head screws and 2 10 32 nuts mount the circuit breake...

Page 22: ...all all screws before tightening Reinstall the glove box door See Photo 2 below Glove Box Photo 1 Photo 2 Glove Box Door Glove Box Installation 1950 52 Vehicles 1 2 Using the OEM glove box screws inst...

Page 23: ...uction manual See Operation of Controls procedures on Page 26 Locate the evaporator drain on the bottom of the evaporator case In line with the drain drill a 5 8 hole through the floor where it meets...

Page 24: ...7 VUR 232002 VUA CIRCUIT BREAKER 30 AMP WIDE OPEN THROTTLE SWITCH OPTIONAL DASH LAMP IF USED Dash Lamp Is Used Only With Type 232007 VUR Harness Warning Always Mount Circuit Breaker As Close to the Ba...

Page 25: ...ressor Body Is Grounded Trinary Switch Connect According To Trinary Switch Wiring Diagram Install With Servo Motor Facing Down As Shown Note Flow Direction Arrow Molded Into Valve Body And Install Acc...

Page 26: ...en back it off to the desired vent temperature For heat operation move the temperature lever knob all the way to hot and then adjust to the desired vent temperature The blower will momentarily change...

Page 27: ...be hot If the ground side of the blower is shorted to chassis ground the blower will run on HI Replace BSC This will require removal of evaporator from vehicle No other part replacements should be ne...

Page 28: ...ion No mode change at all Check for damaged mode switch or potentiometer and associated wiring Partial function of mode doors Typically caused by evaporator housing installed in a bind in the vehicle...

Page 29: ......

Page 30: ...Qty 1 1 Part No 744004 VUE 799003 Description Gen IV Evaporator Sub Case 4 Vent Accessory Kit NOTE Images may not depict actual parts and quantities Refer to packing list for actual parts and quantiti...

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