Upload
others
View
2
Download
0
Embed Size (px)
Citation preview
1969-70 Mustangwith Factory Air
554170
904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 1 OF 23
an ISO 9001:2008 Registered Company
18865 Goll St. San Antonio, TX 78266 ph: 210-654-7171 fax: 210-654-3113
2904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 2 OF 23
Table of Contents 1. Cover 2. Table of Contents 3. Packing List/Parts Disclaimer 4. Information Page 5. Wiring Notice 6. Engine Compartment, Condenser Assembly & Installation, and Compressor & Brackets Figure 1 7. Passenger Compartment Figures 2 & 3 8. Defrost Duct/Fresh Air Cap Installation & Hose Adapter Installation Figures 4 & 5 9. Evaporator Installation Figures 6 & 710. Firewall Cover Installation Figures 8 & 8a11. Center Louver Installation Figures 9 & 9a12. Drain Hose Installation & Lubricating O-rings, Standard Hose Kit & Modified Hose Kit Figures 10 & 1113. Heater Hose & Heater Control Valve Installation Figure 1214. A/C & Heater Hose Routing Figure 1315. Final Steps & Glove Box Installation Figures 14 & 14a16. Duct Hose Routing Figure 1517. Evaporator Hardline and Bracket Installation Figure 1618. Wiring Diagram19. Gen IV Wiring Connection Instructions20. Operation of Controls21. Troubleshooting Information22. Troubleshooting Information (Cont.)23. Evaporator Kit Packing List
3904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 3 OF 23
Evaporator Kit (554170)
1
Accessory Kit785169
2
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 4-VentEvap Sub Case
w/ 207 ECU763069
Gen IV 4-Vent Evaporator Sub Case w/ 207 ECU1969-70 Mustang with A/C Gen IV Accessory Kit
1.2.
11
763069785169
** 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.
Packing List
FAN
DASHFLR
DEFHOT
COLD
4904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 4 OF 23
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. VintageAir Recommends Our Systems Be Charged By Weight With a Quality
Charging Station or Scale.
Service Info:
Safety Switches:
Important Notice—Please Read
Attention: The following system components are capped: Compressor, evaporator, condenser & drier. Caps may be under pressure with dry nitrogen. Be careful removing caps. Do not remove caps prior 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.
For Maximum System Performance, Vintage Air Recommends the Following:
Heater hose may be purchased from Vintage Air (Part# 31800-VUD) or your local parts retailer. Routing and required length will vary based on installer preference.
Vintage Air Systems Are Designed to Operate With R134a Refrigerant Only! Use of Any Other Refrigerants Is a Fire Hazard and Could Damage Either Your Air Conditioning System or Your Vehicle.
Refrigerant Capacity for Vintage Air Systems:(For other systems, consult manufacturer’s guidelines)
R134a SystemCharge with 1.8 lbs. (1 lb., 12 oz.) of refrigerant.
Lubricant Capacities:New Vintage Air-supplied Sanden Compressor: No additional oil needed (Compressor is shipped with proper oil charge).All Other Compressors: Consult manufacturer (Some compressors are shipped dry and will need oil added).
Your Vintage Air system is equipped with a binary pressure safety switch. A binary switch disengages the compressor clutch in cases of extreme low pressure conditions (Refrigerant Loss) or excessively high head pressure (406 PSI) to prevent compressor damage or hose rupture. A trinary switch combines Hi/Lo pressure protection with an electric fan operation signal at 254 PSI, and should be substituted for use with electric fans. Compressor safety switches are extremely important since an A/C system relies on refrigerant to circulate lubricant.
Heater Hose (Not Included With This Kit):
To ensure a watertight seal between the passenger compartment and the vehicle exterior, for all bolts passing through the cowl and/or firewall, Vintage Air recommends coating the threads with silicone prior to installation.
Bolts Passing Through Cowl and/or Firewall:
5904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 5 OF 23
Important Wiring Notice—Please Read
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 coil.2. If there is a generator, on the armature terminal of the generator.3. 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 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 switching some of the vehicle’s other systems on and off. Modern computer-operated equipment 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 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 and truck parts suppliers. They typically are cylindrical in shape, a little over an inch long, a little over a half inch in diameter, and they have a single lead coming from one end of the cylinder with a terminal on the end of the wire, as well as 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.
Care must be taken, when installing the compressor lead, not to short it to ground. The compressor lead must not be connected to a condenser fan or to any other auxiliary device. Shorting to ground or connecting to a condenser fan or any other auxiliary device may damage wiring, the compressor relay, and/or cause a malfunction.
When installing ground leads on Gen IV systems, the blower control ground and ECU ground must be connected directly to the negative battery post.
For proper system operation, the heater control valve must be connected to the ECU.
•
•
•
6904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 6 OF 23
Figure 1
Engine Compartment
1.
2.
3.
4.
5.
6.
NOTE: Before starting the installation, check the function of the vehicle (horn, lights, etc.) for proper operation, and study the instructions, illustrations, & diagrams.
Remove the Following:
Battery (retain).
Drain radiator.
Evacuate the A/C system if necessary.
OEM condenser and drier (discard) (See Figure 1, below).
OEM compressor and bracket (discard) (See Figure 1, below).
OEM heater hoses, A/C hoses (discard) (See Figure 1, below).
Condenser Assembly and Installation Refer to separate instructions included with the condenser kit to install the condenser.
Binary switch installation (Refer to condenser instructions).
1.
2.
Compressor and Brackets Refer to separate instructions included with the bracket kit to install the compressor and bracket.1.
Radiator
Hoses
Condenser
CompressorAnd
Bracket
Drier
7904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 7 OF 23
NOTE: Removal of the dashboard is required to install the evaporator. Vintage Air recommends that you utilize the factory service manual when you disassemble and reassemble the dashboard.
Remove the dash pad, instrument panel, passenger side panel and lower passenger side dashboard (retain screws) (See Figure 2, below).Glove box (retain) (See Figure 2, below).A/C heater/evaporator assembly and all related ducting (discard) (retain screws) (See Figure 3, below).Control panel assembly (retain control panel) (See Figure 2, below).Refer to control panel conversion kit instructions for installation of controls.Remove OEM defrost duct ASM (See Figure 3, below).
Dash Pad
InstrumentPanel
ControlPanel
Defrost DuctASM
OEMDriver Side
Louver
OEM CenterLouver
A/C, Heater Assembly& Related Ducting
OEM Passenger
Side Louver
Figure 2
Figure 3
Lower PassengerSide Dashboard
Passenger SidePanel
Glove Box
Passenger Compartment
Remove the Following:1.
2.3.4.5.6.
8904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 8 OF 23
DrillHoles
Fresh AirCap
605174 (3) 10 x 1/2”Sheet Metal
Screw
Silicone
Install defrost duct under dash as shown in Figure 4, below. Secure using OEM nuts with (3) 3/16” SAE flat washers.Hold fresh air cap under dash and mark the (3) mounting holes.Drill (3) 1/8” mounting holes under dash.Apply a 1/4” bead of silicone around the back side of the fresh air cap as shown in Figure 4, below.Secure fresh air cap to fresh air hole using (3) #10 x 1/2” sheet metal screws as shown in Figure 4, below.
Install S-clips on hose adapters as shown in Figure 5, below.Install driver & passenger side hose adapters on OEM louvers. See Figure 5, below.
Figure 4
Figure 5
(4) S-clips
(2) HoseAdapter605179
Driver Side OEM
Louver
PassengerSideOEM
Louver
Defrost Duct/ Fresh Air Cap Installation
Hose Adapter Installation
1.
2.3.4.5.
(3) OEMStar Nuts
Defrost Duct
605169
(3) 3/16”SAE Flat Washers
1.2.
9904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 9 OF 23
Evaporator Installation
Evap FrontBrkt
641271
(2) #14 x 3/4”Sheet Metal
Screwsw/ 1/4”
Flat Washers
On a workbench, install evaporator rear bracket and hardlines with properly lubricated O-rings (See Figure 11, Page 12, and Figure 16, Page 17).Install front mounting bracket on evaporator using (2) 1/4-20 x 1/2” hex bolts and tighten as shown in Figure 6, below. Lift evaporator unit up under the dashboard (See Figure 7, below). Secure loosely to the firewall from the engine compartment side using (2) 1/4-20 nut and washers (See Figure 7, below).Using (2) #14 x 3/4” sheet metal screws with 1/4” flat washers, secure the front evaporator mountingbracket to the inner cowl (See Figure 7, below).Verify that evaporator unit is level and square to the dash, and then tighten all mounting bolts. NOTE: Tighten the bolt on the firewall first. Then tighten the front mounting bracket screws.
Driver Side EvapMounting Hole
Passenger Side EvapMounting Hole
Figure 6
Figure 7
S B
Y
1.
2.
3.
4.
5.
10904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 10 OF 23
FirewallCover
642071
(6) #14 x 3/4”Sheet Metal
Screws
Grommet33144-VUI
Grommet33137-VUI
Grommet33135-VUI
Silicone
OEMHoles
OEMA/C Holein Firewall
OEM HeaterLine Holes
(4) OEMBlower Motor
Mounting Holes
Install (3) grommets on firewall cover as shown in Figure 8, below.Apply a 1/4” bead of silicone around the back side of the firewall cover as shown in Figure 8a, below.Secure firewall cover to firewall using (6) #14 x 3/4” sheet metal screws (See Figure 8, below). NOTE: Firewall cover installs on engine side of firewall.
Firewall Cover Installation
EngineCompartment
Side ofFirewall
Figure 8a
Figure 8
1.2.3.
11904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 11 OF 23
Assembled View
MountingHoles
Install (2) #8 J-nuts over mounting holes in OEM center louver assembly as shown in Figure 9a, below.Install 1/2” x 20“ foam around center louver hose adapter in dash as shown in Figure 9, below. Secure hose adapter to center louver using (2) #8 x 1/2” pan head screws as shown in Figure 9, below.Reinstall dash.
OEMCenter Louver
Assembly
Center LouverHose Adapter
(2) #8 x 1/2”Pan HeadScrews
Center Louver Installation
OEM CenterLouver
(2) #8J-nuts
1/2” x 20”Foam
Figure 9a
Figure 9
1.2.3.4.
12904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 12 OF 23
Locate evaporator drain on bottom of evaporator case.Locate OEM hole in floorboard and install 1 ¼” OD X 11/16” ID grommet (See Figure 10, below).Install drain hose to bottom of evaporator unit and route through firewall (See Figure 10, below).
Drain Hose Installation
Lubricating O-rings
Standard Hose Kit
Modified A/C Hose Kit
Drain
Figure 10
Grommet DrainHose
Locate the #8 compressor A/C hose. Lubricate (2) #8 O-rings (See Figure 11, above) and connect the 45° fitting to the #8 discharge port on the compressor. Route the straight female with 134a service port fitting to the #8 condenser hardline coming through the radiator core support (See Figure 13, Page 14). Tighten each fitting connection as shown in Figure 11, above.Locate the #10 compressor A/C hose. Lubricate (2) #10 O-rings and connect the 90° female with 134a service port fitting to the #10 suction port on the compressor, and route the 135° female fitting to the #10 evaporator hardline coming through the firewall (See Figure 12, Page 13, & Figure 13, Page 14). Tighten each fitting connection as shown in Figure 11, above. NOTE: Wrap the #10 fitting connections with press tape (See Figure 12, Page 13, & Figure 13, Page 14).Locate the #6 evap/drier A/C hose. Lubricate (2) #6 O-rings and connect the straight female fitting to the #6 drier hardline coming through the radiator core support. Route the 90° female fitting to the #6 evaporator hardline coming through the firewall (See Figure 12, Page 13, & Figure 13, Page 14). Tighten each fitting connection as shown in Figure 11, above.Use (6) tie wraps to secure the #6 A/C hose to the export brace as shown in Figure 13, Page 14.
Twist WithThis
Wrench
Hold WithThis
Wrench
For A Proper Seal Of Fittings:Install Supplied O-rings As Shownand Lubricate With Supplied Oil.
FemaleNut
MaleInsert
Supplied Oilfor O-rings
#6 O-ring
#8 O-ring #10 O-ring
Figure 11
O-ring,Slide OverMale Insert to Swaged Lip
O-ring
O-ring
Refer to separate instructions included with modified hose kit.
1.2.3.
1.
2.
3.
4.
1.
13904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 13 OF 23
HeaterHose
FirewallCover
642071 #6 A/C Hose
#10 SuctionHose
O-rings
PressTape
Firewall
ECUModule
#10 SuctionLine (Insulated)
ExpansionValve
FROM EVAPORATOR
TO WATER PUMP
FROM INTAKEMANIFOLD
FLOW
Figure 12
Heater Hose & Heater Control Valve Installation
1.
2.
Route a piece of heater hose from the water pump to the heater line coming through the firewall as shown in Figure 12, below. Secure using hose clamps.Route a piece of heater hose from the intake to the heater line coming through the firewall as shown in Figure 12, below. NOTE: Install heater control valve in line with intake manifold (pressure side) heater hose, and secure using hose clamps as shown in Figure 12, below. Also note proper flow direction.
FROM HTR CNTRL VLV
TO EVAPORATOR
14904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 14 OF 23
OU
TIN
A/
C &
Hea
ter
Hos
e R
outi
ng
NO
TE:
Vin
tag
e A
ir S
yste
ms
Req
uir
e(2
) 5
/8
Hos
e N
ipp
les
(Not
Su
pp
lied
)
#10
Suc
tion
Hos
e
(6)
Tie
Wra
p
Hea
ter
Hos
e(H
eate
r Cnt
rlVa
lve/
Inta
ke)
#8
Dis
char
geH
ose
Inne
r Fe
nder
Wel
l #8
Con
dens
er t
oCor
e Sup
port
Har
dlin
e08
1096
#6
Drier
to
Cor
e Sup
port
Har
dlin
e08
1095
Com
pres
sor
Saf
ety
Switc
h(B
inar
y Ty
pe)
Scr
ew-O
n D
rier
(Ref
er t
oCon
dens
erIn
stru
ctio
ns)
Cor
eSup
port
Fig
ure
13
Pres
sTa
pe
Hea
ter
Hos
e(H
eate
r Cor
e/W
ater
Pum
p)
#6
Hos
e
15904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 15 OF 23
Install duct hoses as shown in Figure 15, Page 16.Route A/C wires through 3/8” grommet as shown in Figure 14a, below (12 volt/ground/binary switch/heater valve).Install control panel ASM.Plug the wiring harnesses into the ECU module on the sub case as shown in Figure 15, Page 16 (Wire according to wiring diagram on Pages 18 and 19).Install the glove box (See Figure 14, below).Reinstall all previously removed items (battery).Fill radiator with at least a 50/50 mixture of approved antifreeze and distilled water. It is the owner’s responsibilty to keep the freeze protection at the proper level for the climate in which the vehicle is operated. Failure to follow antifreeze recommendations will cause heater core to corrode prematurely and possibly burst in A/C mode and/or freezing weather, voiding your warranty.Double check all fittings, brackets and belts for tightness.Vintage Air recommends that all A/C systems be serviced by a certified automotive air conditioning technician.Evacuate the system for a minimum of 45 minutes prior to charging, and leak check prior to servicing.Charge the system to the capacities stated on the information page (Page 4) of this instruction manual.See Operation of Controls procedures on Page 20.
Install glove box with OEM screws (See Figure 14, below).
Glove Box
Figure 14Figure 14a
FirewallCover
Final Steps
Glove Box Installation
Grommet
1. 2.
3. 4.
5. 6. 7.
8. 9.10.11.12.
1.
16904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 16 OF 23
S B
Y
Driver SideDef. Duct2” x 14”
Driver SideLouver
2 ½” x 30”
Center LouverDriver Side2 ½” x 32”
Center LouverPass. Side2 ½” x 32”
Pass. SideDef. Duct2” x 12”
Pass. SideLouver
2 ½” x 32” PlugFrom
ControlWiring
Harness232002-VUA
PlugFromWiring
Harness232001-VUR
Duct Hose Routing
Control PanelHarness To ECU232006-VUR
Figure 15
17904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 17 OF 23
1/4”
Pus
h N
utBol
t Re
tain
er18
9125
-MU
R
1/4-
20 x
1”
Coa
rse
Bol
t18
289-
VU
B
Bra
cket
#6
Liqu
id L
ine
0810
91
Evap
orat
or H
ard
line
Inst
alla
tion
Hea
ter
Line
(Eva
p to
Wat
er P
ump)
0810
94
Pres
s Ta
pe
F
Hol
d W
ithTh
is W
renc
h
Twis
t W
ithTh
isW
renc
h
#10
O-r
ing
3385
9-VU
F
Hea
ter
Line
(Eva
p to
Int
ake)
0810
93
ECU
Mod
ule
Lubr
icat
e O
-rin
g(S
ee F
igur
e 11
,Pa
ge 1
2)
#10
Suc
tion
Line
0810
92
#6
O-r
ing
3385
7-VU
F
Pass
Sid
e Ev
apRe
ar B
rkt
6412
72
Drive
r Sid
e Ev
ap
Rear
Brk
t64
1273
#10
O-r
ing
3385
9-VU
F
Fig
ure
16
1/4-
20 x
1/2
” Bol
t(L
ocat
ed o
n Sub
Cas
e)
NO
TE:
Aft
er I
nst
allin
g#
10
Su
ctio
n L
ine
Wra
p A
ll Ex
pos
ed M
etal
Fitt
ing
s &
Tu
be
Wit
h S
up
plie
d
Pre
ss T
ape.
18904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 18 OF 23
WHT/GRN
WHT/YELWHT/RED
RED
WHTBACKLIGHT NEG
FAN WIPER
MODE WIPER
TEMP WIPER
5V-SW
GND
BACKLIGHT POS
AC ANNUNCIATOR
PRE-WIRED
GEN IV WIRING DIAGRAMREV D, 5/6/2014
GEN IV ECU
PROGRAM
Wiring Diagram
TEMP
MODE
FAN
A/C(IF USED)
232007-VUR
232002-VUA
** CIRCUITBREAKER30 AMP
*** WIDE OPENTHROTTLESWITCH
(OPTIONAL)
* DASH LAMP(IF USED)
Dash Lamp Is Used Only With Type 232007-VUR Harness.Warning: Always Mount Circuit Breaker As Close to the Battery As Possible. (NOTE: Wire BetweenBattery and Circuit Breaker Is Unprotected and Should Be Carefully Routed to Avoid a ShortCircuit).Wide Open Throttle Switch Contacts Close Only at Full Throttle, Which Disables A/C Compressor.
JF8
BLK
ORA
TAN
VIEWED FROM WIRE SIDE
••
•
HEATERCONTROL VALVE
19904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 19 OF 23
RED
CIRCUIT BREAKER30 AMP
+
+
-
BLACK
REDWHITE
RED
CHASSIS GROUND
A/CCOMPRESSOR
RELAY
Ignition Switch:
Dash Light:
NOTE: MOUNT RELAYIN DESIRED LOCATION
UNDER DASH
GREEN
FIREWALL
BLUE
BLUE
RED &
WHITE
VIOLET
(IGNITION HOTTERMINAL)
IGNITION SWITCH
DASH BACK LIGHT+0-12vTAN
GRAY
BLUE
WHITE
WHITE
REDRED
WHITE
COMPRESSOR
BATTERY
NOTE: CONNECT WHITEWIRES DIRECTLY TO
(-) BATTERY TERMINAL
BATRUN
12V
RED GREEN
RED
RED
BLUE
LATCH
BLACK
BINARYSAFETYSWITCH
YELLOW
ORANGE
WIRING HARNESS
Violet 12V Ign Switch Source (Key On Accessory) Position Must Be Switched.
Tan Wire Used Only With Vintage Air Supplied Control Panel With LED Back Light.
Binary: Connect As Shown (Typical Compressor Wiring). 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, And Install Accordingly.
White Must Run To (-) Battery. Red May Run To (+) Battery Or Starter. Mount Circuit Breaker As Close to Battery As Possible.
Heater Control Valve:
Binary/Trinary & Compressor:
Circuit Breaker/Battery:
CONTROL WIRING HARNESS
NOTE: YELLOW & ORANGE
COMING FROM HARNESS ARE NOT
USED.
WIRING HARNESS
GRAY WIRE IS USED FOR PROGRAMING CONTROLS
IF APPLICABLE
WIRING HARNESS
Gen IV Wiring Connection Instruction
HEATERCONTROL VALVE
WARNING: ALWAYS MOUNT CIRCUIT BREAKER
AS CLOSE TO THE BATTERY AS POSSIBLE. (NOTE: WIRE BETWEEN BATTERY AND CIRCUIT BREAKER IS UNPROTECTED
AND SHOULD BE CAREFULLY ROUTED TO AVOID A SHORT CIRCUIT).
NOTE: HEATER CONTROL VALVE CONNECTION AND CHASSIS GROUND MAY BE LOCATED ON EITHER SIDE OF THE FIREWALL. ENSURECONNECTOR IS LATCHED
FIRMLY.
20904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 20 OF 23
Operation of Controls
Blower SpeedAdjust to desired
speed.
Slide the lever allthe way left
(DASH position).
Mode Lever
Temperature LeverFor A/C operation, slide the temperature lever all the way left to engage the compressor (Slide lever left or right to
adjust to desired temperature).
FLRDASHCOLD
FAN
DEFHOT
A/C OperationMode Lever
BlowerSpeed
TemperatureLever
Blower SpeedAdjust to desired
speed.
Slide the lever to the FLR position.
Mode Lever
Temperature LeverFor heat operation, slide the temperature lever all
the way right to the HOT position (Slide lever left or right to
adjust to desired temperature).
FLRDASHCOLD
FAN
DEFHOT
Heat Operation
FLRDASHCOLD
FAN
DEFHOT
Defrost/De-fog Operation
Blower SpeedAdjust to desired
speed.
Slide the lever allthe way right
(DEF position).
Mode Lever
Temperature LeverAdjust lever to desired
temperature (Compressor is automatically engaged).
On Gen IV systems with three lever/knob controls, the temperature control toggles between economy and A/C operations. To activate A/C, move the temperature lever all the way to cold and then back it off to the desired vent temperature. For economy/heat operation, move the temperature lever all the way to hot and then adjust to the desired vent temperature. The blower will momentarily change speed, each time you toggle between operations, to indicate the change.
NOTE: Controls must be calibrated prior to first use. Refer to control panel instructions.
21904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 21 OF 23
Sym
pto
m
C
on
dit
ion
Ch
eck
s
Act
ion
s
N
ote
s
Blo
wer
sta
ys o
n
hig
h s
pee
d w
hen
ig
nitio
n is
on.
1a.
No o
ther
funct
ions
work
.
Chec
k fo
r dam
aged
pin
s or
wires
in c
ontr
ol hea
d p
lug.
Ver
ify
that
all
pin
s ar
e in
sert
ed into
plu
g.
Ensu
re t
hat
no
pin
s ar
e ben
t or
dam
aged
in E
CU
.
Chec
k fo
r dam
aged
gro
und
wire
(white)
in c
ontr
ol hea
d
har
nes
s.
Ver
ify
continuity
to c
has
sis
gro
und w
ith w
hite
contr
ol
hea
d w
ire
at v
ario
us
poin
ts.
Loss
of gro
und o
n t
his
wire
render
s co
ntr
ol hea
d
inoper
able
.
All
oth
er f
unct
ions
work
.Chec
k fo
r dam
aged
blo
wer
sw
itch
or
pote
ntiom
eter
and
asso
ciat
ed w
irin
g.
Blo
wer
sta
ys o
n
hig
h s
pee
d w
hen
ig
nitio
n is
on o
r off.
Unplu
g 3
-wire
BSC c
ontr
ol
connec
tor
from
ECU
. If
blo
wer
sh
uts
off,
ECU
is
eith
er
impro
per
ly w
ired
or
dam
aged
.
Be
sure
the
smal
l, 2
0 G
A w
hite
gro
und w
ire
is c
onnec
ted
to t
he
bat
tery
gro
und p
ost
. If
it
is,
repla
ce t
he
ECU
.
Unplu
g 3
-wire
BSC c
ontr
ol
connec
tor
from
ECU
. If
blo
wer
st
ays
runnin
g,
BSC is
eith
er
impro
per
ly w
ired
or
dam
aged
.
Chec
k to
ensu
re t
hat
no B
SC w
irin
g is
dam
aged
or
short
ed t
o v
ehic
le g
round.
The
BSC o
per
ates
the
blo
wer
by
gro
und s
ide
puls
e w
idth
modula
tion s
witch
ing.
The
posi
tive
wire
to t
he
blo
wer
will
alw
ays
be
hot.
If th
e “g
round”
side
of
the
blo
wer
is
short
ed t
o c
has
sis
gro
und,
the
blo
wer
will
run o
n H
I.
Rep
lace
BSC (
This
will
req
uire
rem
oval
of
evap
ora
tor
from
veh
icle
).N
o o
ther
par
t re
pla
cem
ents
sh
ould
be
nec
essa
ry.
Com
pre
ssor
will
not
turn
on
(All
oth
er funct
ions
work
).
2.
Sys
tem
is
not
char
ged
.Sys
tem
must
be
char
ged
for
com
pre
ssor
to e
ngag
e.Char
ge
syst
em o
r byp
ass
pre
ssure
sw
itch
.
Dan
ger:
Never
byp
ass
sa
fety
sw
itch
wit
h
en
gin
e r
un
nin
g.
Seri
ou
s in
jury
can
resu
lt.
Sys
tem
is
char
ged
.
1b
.
Tro
ub
lesh
oo
tin
g G
uid
e
Chec
k fo
r fa
ulty
A/C
pote
ntiom
eter
or
asso
ciat
ed
wirin
g (
Not
applic
able
to 3
-pot
contr
ols
).
Chec
k fo
r dis
connec
ted o
r fa
ulty
ther
mis
tor.
Chec
k co
ntinuity
to g
round o
n w
hite
contr
ol hea
d w
ire.
Chec
k fo
r 5V o
n r
ed c
ontr
ol hea
d w
ire.
Chec
k 2-p
in c
onnec
tor
at E
CU
housi
ng.
To c
hec
k fo
r pro
per
pot
funct
ion,
chec
k vo
ltag
e at
w
hite/
blu
e w
ire.
Voltag
e sh
ould
be
bet
wee
n 0
V a
nd
5V,
and w
ill v
ary
with p
ot
leve
r posi
tion.
Dis
connec
ted o
r fa
ulty
ther
mis
tor
will
cau
se
com
pre
ssor
to b
e dis
able
d.
Red
wire
at A
/C p
ot
should
hav
e ap
pro
xim
atel
y 5V
with ignitio
n o
n.
White
wire
will
hav
e co
ntinuity
to
chas
sis
gro
und.
White/
Blu
e w
ire
should
var
y bet
wee
n 0
V a
nd 5
V w
hen
le
ver
is m
oved
up o
r dow
n.
3. Com
pre
ssor
will
not
turn
off
(A
ll oth
er funct
ions
work
).
Chec
k fo
r fa
ulty
A/C
pote
ntiom
eter
or
asso
ciat
ed
wirin
g.
Chec
k fo
r fa
ulty
A/C
rel
ay.
Rep
air
or
repla
ce p
ot/
contr
ol w
irin
g.
Rep
lace
rel
ay.
See
blo
wer
sw
itch
chec
k pro
cedure
.
22904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 22 OF 23
Sym
pto
m
C
on
dit
ion
C
heck
s
Act
ion
s
N
ote
s
Sys
tem
will
not
turn
on,
or
runs
inte
rmitte
ntly.
4.
Work
s w
hen
engin
e is
not
runnin
g;
shuts
off w
hen
en
gin
e is
sta
rted
(T
ypic
ally
ear
ly G
en I
V,
but
poss
ible
on a
ll ve
rsio
ns)
.
Nois
e in
terf
eren
ce f
rom
either
ig
nitio
n o
r al
tern
ator.
Inst
all ca
pac
itors
on ignitio
n c
oil
and a
lter
nat
or. E
nsu
re
good g
round a
t al
l poin
ts.
Rel
oca
te c
oil
and a
ssoci
ated
w
irin
g a
way
fro
m E
CU
and E
CU
wirin
g.
Chec
k fo
r burn
edor
loose
plu
g w
ires
.
Ver
ify
connec
tions
on p
ow
er
lead
, ig
nitio
n lea
d,
and b
oth
white
gro
und w
ires
.
Ver
ify
pro
per
met
er f
unct
ion b
y ch
ecki
ng t
he
conditio
n o
f a
know
n g
ood b
atte
ry.
Ignitio
n n
ois
e (r
adia
ted o
rco
nduct
ed)
will
cau
se t
he
syst
em t
o s
hut
dow
n d
ue
tohig
h v
oltag
e sp
ikes
. If
this
is s
usp
ecte
d,
chec
k w
ith a
qual
ity
osc
illosc
ope.
Spik
esgre
ater
than
16V w
ill s
hut
dow
n t
he
ECU
. In
stal
l a
radio
cap
acitor
at t
he
posi
tive
post
of th
e ig
nitio
nco
il (S
ee r
adio
cap
acitor
inst
alla
tion b
ulle
tin).
A
faulty
alte
rnat
or
or
worn
out
bat
tery
can
als
o r
esult
in t
his
conditio
n.
Will
not
turn
on u
nder
an
y co
nditio
ns.
Ver
ify
bat
tery
voltag
e is
gre
ater
than
10 v
olts
and les
sth
an 1
6.
Loss
of m
ode
door
funct
ion.
No m
ode
chan
ge
at a
ll.Chec
k fo
r dam
aged
mode
switch
or
pote
ntiom
eter
and
asso
ciat
ed w
irin
g.
Part
ial fu
nct
ion o
f m
ode
doors
.
Typic
ally
cau
sed b
y ev
apora
tor
housi
ng
inst
alle
d in a
bin
d in t
he
vehic
le.
Be
sure
all
mounting loca
tions
line
up
and d
on’t h
ave
to b
e fo
rced
in
to p
osi
tion.
Blo
wer
turn
s on
and o
ff r
apid
ly.
6.
Bat
tery
voltag
e is
at
leas
t 12V.
Chec
k fo
r at
lea
st 1
2V a
t ci
rcuit b
reak
er.
Ensu
re a
ll sy
stem
gro
unds
and p
ow
er c
onnec
tions
are
clea
n a
nd t
ight.
Bat
tery
voltag
e is
les
s th
an 1
2V.
5.
Tro
ub
lesh
oo
tin
g G
uid
e (
Co
nt.
)
Chec
k fo
r fa
ulty
bat
tery
or
alte
rnat
or.
Char
ge
bat
tery
.
Sys
tem
shuts
off b
low
er a
t 10V.
Poor
connec
tions
or
wea
k bat
tery
can
cau
se
shutd
ow
n a
t up t
o 1
1V.
7. When
ignitio
n is
turn
ed o
n,
blo
wer
m
om
enta
rily
co
mes
on,
then
sh
uts
off.
This
occ
urs
with t
he
blo
wer
sw
itch
in
the
OFF
posi
tion.
This
is
an indic
ator
that
the
syst
em h
as b
een r
eset
. Be
sure
the
red p
ow
er w
ire
is o
nth
e bat
tery
post
, an
d n
ot
on a
sw
itch
ed s
ourc
e. A
lso,
if
the
syst
em is
pulle
d b
elow
7V f
or
even
a s
plit
sec
ond,
the
syst
em w
ill r
eset
.
Run r
ed p
ow
er w
ire
direc
tly
to b
atte
ry.
Chec
k fo
r posi
tive
pow
er a
t hea
ter
valv
e gre
en w
ire
and
blo
wer
red
wire.
Chec
k fo
r gro
und o
n c
ontr
ol hea
d w
hite
wire.
Chec
k fo
r obst
ruct
ed o
r bin
din
g m
ode
doors
.
Chec
k fo
r dam
aged
ste
pper
m
oto
r or
wirin
g.
Err
atic
funct
ions
of
blo
wer
, m
ode,
te
mp,
etc.
Chec
k fo
r dam
aged
sw
itch
or
pot
and a
ssoci
ated
wirin
g.
Rep
air
or
repla
ce.
8.
904069 REV E 07/14/14, 1969-70 MUSTANG w/ AC EVAP INST PG 23 OF 23
Evaporator Kit (554170)
1
Accessory Kit785169
2
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 4-VentEvap Sub Case
w/ 207 ECU763069
Gen IV 4-Vent Evaporator Sub Case w/ 207 ECU1969-70 Mustang with A/C Gen IV Accessory Kit
1.2.
11
763069785169
Packing List
FAN
DASHFLR
DEFHOT
COLD
Checked By:Packed By:
Date: