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901189 REV D 02/02/17, INST 55-59 CHEV P-UP w/ STANDARD CONTROLS EVAP KIT PG 15 OF 24

NOTE: Vintage Air Systems use 5/8” heater connections. On engines equipped with 3/4” hose 

nipples, these will need to be removed and replaced with 5/8” nipples (not supplied). For water 

pumps with a cast-in 3/4” heater outlet, a 3/4” x 5/8” reducer fitting (not supplied) will need 

to be installed in the heater hose.

From Intake 

Manifold

Figure 14

A/C and Heater Hose Routing 

(1958-59 Models Only)

1.

2.

3.

Locate the #8 compressor A/C hose. Lubricate (2) #8 O-rings (See Figure 11, Page 12) and connect the 135° 

female fitting to the #8 discharge port on the compressor. Then route the straight female fitting with service 

port to the #8 condenser hardline coming through the core support (See Figure 14, below). Tighten each 

fitting connection as shown in Figure 11, Page 12.

Locate the #10 compressor A/C hose. Lubricate (2) #10 O-rings (See Figure 11, Page 12) and connect the 

135° female fitting with service port to the #10 suction port on the compressor. Then route the 90° female 

fitting to the #10 evaporator hardline (See Figure 12, Page 13, and Figure 14, below). Tighten each fitting 

connection as shown in Figure 11, Page 12.
Locate the #6 evaporator/drier hose. Lubricate (2) #6 O-rings (See Figure 11, Page 12) and connect the 

straight female fitting with the binary switch service port to the #6 drier hardline coming through the core 

support. Then route the 90° female fitting to the #6 evaporator hardline (See Figure 12, Page 13, and Figure 

14, below). Tighten each fitting connection as shown in Figure 11, Page 12.

Standard Hose Kit:

1. Refer to separate instructions included with modified hose kit.

Modified Hose Kit:

Tie Wrap

 

 

Heater

Hoses

#6 Drier/Core 

Hardline

095018

Safety 

Switch 

(Binary Type)

 

From Evaporator

to Water Pump

From Heater 

Control Valve to 

Evaporator

#6 Adel Clamp

31602-VUD

#8 Discharge 

Hose

096009

#10 Suction

Hose

096010

Heater Hose

(Heater Control 

Valve/Intake)

NOTE: Flow direction follows

molded arrow on valve.

#6 A/C Hose

096008

#8 Condenser/Compressor

Hardline

095017

#6 Condenser/Drier

Hardline

095016

Summary of Contents for 751155

Page 1: ...porator Kit with Standard Controls 751155 901189 REV D 02 02 17 INST 55 59 CHEV P UP w STANDARD CONTROLS EVAP KIT PG 1 OF 24 an ISO 9001 2008 Registered Company 18865 Goll St San Antonio TX 78266 ph 2...

Page 2: ...ger Compartment Disassembly Defrost Duct Installation Bracket Evaporator Hardline Installation Bracket Evaporator Hardline Installation Cont Center Louver A C Plenum Installation Firewall Modification...

Page 3: ...d quantities Refer to packing list for actual parts and quantities Gen IV Evaporator Sub Case 744012 Gen IV Evaporator Sub Case Accessory Kit 1 2 1 1 744012 791155 Before beginning installation open a...

Page 4: ...ure of your A C 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 Evac...

Page 5: ...uipment can be 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...

Page 6: ...ct the battery Remove the battery and battery tray retain Remove the top cover on the radiator core support retain Remove the OEM fan fan shroud retain Drain and remove the radiator retain Remove the...

Page 7: ...d Disconnect all wires and cables from the control panel Remove the control panel discard Remove the passenger side OEM vent control discard and close and seal the kick panel vent with silicone See Fi...

Page 8: ...Hex Bolts Supplied on Evaporator Sub Case 6 Liquid Line 092160 Defrost Duct Installation Install the driver and passenger side defrost ducts using 2 8 x 1 2 pan head screws as shown in Figure 3 below...

Page 9: ...to Water Pump 092162 10 O ring Heater Line Evaporator to Intake 092163 Center Louver A C Plenum 496102 2 10 32 x 1 2 Pan Head Screws Bracket Evaporator Hardline Installation Cont Center Louver A C Ple...

Page 10: ...3 8 Firewall Modification Drill 2 1 holes and 2 3 8 holes into the firewall See Figure 7 below Enlarge an OEM hole in the firewall to 5 8 as shown in Figure 7 below 1 2 Firewall Modification Cont Cut...

Page 11: ...re 9 below Verify that the evaporator unit is level and square to the dash then tighten all mounting bolts NOTE Tighten the bolt on the firewall first Then tighten the front mounting bracket Install t...

Page 12: ...onto the bottom of the evaporator unit and route it through the firewall Install a 1 2 90 drain elbow onto the drain hose 1 2 3 1 Figure O ring Installs Over Male Insert to Swaged Lip O ring 6 O ring...

Page 13: ...unt of silicone spray will ease heater hose installation Route a 90 heater hose through the firewall and connect to the heater line on the evaporator Route the other end of the hose to the intake NOTE...

Page 14: ...or A C hose Lubricate 2 8 O rings See Figure 11 Page 12 and connect the 135 female fitting with service port to the 8 discharge port on the compressor Then route the 90 female fitting to the 8 condens...

Page 15: ...135 female fitting with service port to the 10 suction port on the compressor Then route the 90 female fitting to the 10 evaporator hardline See Figure 12 Page 13 and Figure 14 below Tighten each fit...

Page 16: ...Louver Installation Install the driver side louver under the dash and secure it using an OEM screw as shown in Figure 15 below Install a 1 2 plastic plug into the driver side louver as shown in Figure...

Page 17: ...l radiator with at least a 50 50 mixture of approved antifreeze and distilled water It is the owner s responsibility to keep the freeze protection at the proper level for the climate in which the vehi...

Page 18: ...e Defrost Duct 2 x 10 Driver Side Defrost Duct 2 x 24 Glove Box Duct Hose Retainer 624989 Windshield Duct Hose Dash Passenger Side Louver 2 x 40 Driver Side Louver 2 x 30 Plug From Control Wiring Harn...

Page 19: ...C IF USED 232007 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...

Page 20: ...ng Be Sure Compressor 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...

Page 21: ...ions from DASH to FLOOR to DEFROST with a blend in between This lever knob controls the temperature from HOT to COLD Blower Speed Mode Control Temperature Control Temperature Control Temperature Contr...

Page 22: ...blower will always 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 replace...

Page 23: ...of mode door function 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 b...

Page 24: ...1155 Accessory Kit 791155 No Qty Part No Description NOTE Images may not depict actual parts and quantities Refer to packing list for actual parts and quantities Gen IV Evaporator Sub Case 744012 Pack...

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