Gen IV Servo Heater Control Valve Flow Direction/Wiring Instructions

Gen IV Servo Heater Control Valve Flow Direction/Wiring Instructions
ATTENTION:
Instructions, notices and wiring diagrams included in this
insert supersede those included in main instruction booklet.
Part number 46115-VUH (Solenoid Heater Control Valve) has been
replaced by part number 461171 (Servo Heater Control Valve). Please
see illustration below for installation and flow direction. See wiring
diagrams on Pages 3 and 4 of this insert for proper wiring connections.
NOTE:
A. Wiring harness modification is required to install this valve.
Follow the wiring harness modification instructions on
Pages 5 and 6 of this insert.
B. Flow direction follows molded arrow on valve.
C. Connection between heater control valve and wiring adapter
may be located in engine bay or passenger compartment. Be
sure to secure ground ring terminal to chassis ground.
ore
C
er
p
t
a
He r Pum
m
e
Fro Wat
To
From Heater
Control Valve
to Heater Core
Heater
Hose
ake
t
n
I
m
ld
o
Fr anifo
M
Hose Clamps
Ground
Ring
Terminal
Wiring Adapter
907173 REV A 5/14/14, PG 1 OF 6
www.vintageair.com
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.
2
907173 REV A 5/14/14, PG 2 OF 6
Wiring Diagram
www.vintageair.com
232007-VUR
TAN
ORA
BLK
WHT
RED
WHT/RED
WHT/YEL
JF8
WHT/GRN
AC ANNUNCIATOR
BACKLIGHT POS
BACKLIGHT NEG
GND
5V-SW
TEMP WIPER
MODE WIPER
FAN WIPER
PRE-WIRED
VIEWED FROM WIRE SIDE
232002-VUA
A/C
(IF USED)
GEN IV ECU
GEN IV WIRING DIAGRAM
REV D, 5/6/2014
TEMP
MODE
FAN
PROGRAM
* DASH LAMP
(IF USED)
*** WIDE OPEN
THROTTLE
SWITCH
(OPTIONAL)
** CIRCUIT
BREAKER
30 AMP
HEATER
CONTROL VALVE
• Dash Lamp Is Used Only With Type 232007-VUR Harness.
• 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).
• Wide Open Throttle Switch Contacts Close Only at Full Throttle, Which Disables A/C
Compressor.
3
907173 REV A 5/14/14, PG 3 OF 6
Gen IV Wiring
Connection Instruction
www.vintageair.com
WIRING
HARNESS
CONTROL
WIRING
HARNESS
RED
&
WHITE
A/C
COMPRESSOR
RELAY
RED
BLUE
NOTE:
MOUNT RELAY
IN DESIRED
LOCATION
UNDER DASH
RED
WH
IT
E
Ignition Switch:
VIOLET
Violet 12V Ign Switch Source (Key On
Accessory) Position Must Be Switched.
+12V
NOTE:
WIRING YELLOW & ORANGE (IGNITION HOT
HARNESS COMING FROM
TERMINAL)
HARNESS ARE NOT
USED.
YELLOW
RUN
BAT
IGNITION
SWITCH
ORANGE
TAN
DASH BACK LIGHT+0-12v
GRAY
GRAY WIRE IS USED FOR
PROGRAMING CONTROLS
IF APPLICABLE
RED
GREEN
RED
GREEN
FIREWALL
BLACK BLUE
Heater Control Valve:
RED
LATCH
WIRING
HARNESS
WHITE
CHASSIS GROUND
NOTE: HEATER CONTROL
VALVE CONNECTION AND
CHASSIS GROUND MAY BE
LOCATED ON EITHER SIDE
OF THE FIREWALL. ENSURE
CONNECTOR IS LATCHED
FIRMLY.
HEATER
CONTROL VALVE
K
BLAC
BLUE
COMPRESSOR
WHITE
NOTE: CONNECT WHITE
WIRES DIRECTLY TO
(-) BATTERY TERMINAL
WHITE
RED
RED
CIRCUIT BREAKER
30 AMP
Install With Servo Motor Facing Down,
As Shown. Note Flow Direction Arrow
Molded Into Valve Body, And Install
Accordingly.
Binary/Trinary & Compressor:
Binary: Connect As Shown (Typical
Compressor Wiring). Be Sure
Compressor Body Is Grounded.
BINARY
SAFETY
SWITCH
BLUE
Dash Light:
Tan Wire Used Only With Vintage Air
Supplied Control Panel With LED Back
Light.
Circuit Breaker/Battery:
White Must Run To (-) Battery. Red May
Run To (+) Battery Or Starter. Mount
Circuit Breaker As Close to Battery As
Possible.
RED
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).
+
Trinary Switch: Connect According To
Trinary Switch Wiring Diagram.
-
BATTERY
4
907173 REV A 5/14/14, PG 4 OF 6
www.vintageair.com
Wiring Harness Modification
1. IMPORTANT: Disconnect the wiring harness red lead from the positive battery terminal.
2. Disconnect the heater control valve relay from the Gen IV wiring harness. NOTE: The heater control valve relay is
connected to (2) red wires and (2) green wires. The compressor relay is connected to (2) blue wires. Do
NOT disconnect the compressor relay.
3. Using a small flat-blade screwdriver, remove the small green wire from the heater control valve connector by gently
depressing the retaining tab on the metal terminal and withdrawing the wire from the connector. Repeat the process
for the other (3) wires.
4. Using a small flat-blade screwdriver, gently return the retaining tab on the small green wire’s metal terminal to the
raised position, as shown below. Repeat the process for the (2) red wires.
5. Insert the small green wire into Position “3” of the new (white) heater control valve connector (wire positions are
marked on the connector shell). Push the terminal inward until it locks into place.
Wire Positions
5
907173 REV A 5/14/14, PG 5 OF 6
www.vintageair.com
Wiring Harness Modification (Cont.)
6. Insert one of the (2) red wires into Position “1” of the new (white) heater control valve connector. Push the terminal
inward until it locks into place. NOTE: It does not matter which of the two red wires is used for this step.
7. Insert the remaining red wire into Position “2” of the new (white) heater control valve connector. Push the
terminal inward until it locks into place.
Wire Positions
8. Using wire cutters, cut the large green wire in two places, as shown. It will not be used with the new heater control
valve. NOTE: It is not necessary to insulate the ends of the large green wire.
9. Connect the heater control valve wiring adapter to the new heater control valve connector on the Gen IV wiring
harness.
10. Secure the ground ring terminal to chassis ground.
Ground
Ring Terminal
11. Reconnect the wiring harness red lead to the positive terminal of the battery.
6
907173 REV A 5/14/14, PG 6 OF 6
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