Vintage Air 11300-VUZ-A User manual

SLIMLINE
HEAT/COOL/DEFROST
11300-VUZ-A
11400-VUZ-A
901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 1 OF 13
an ISO 9001:2008 Registered Company
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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 2 OF 13
PAGES
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COVER
TABLE OF CONTENTS
PACKING LIST
INFORMATION PAGE
DEFROST DUCT INSTALLATION
INSTALLATION
INSTALLATION CONT.
HOSE ROUTING
O-RING/FITTING INSTRUCTIONS
HEATER HOSE INSTALLATION
WIRING DIAGRAM
THERMOSTAT ADJUSTMENT
EVAPORATOR KIT PACKING LIST
Table of Contents

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 3 OF 13
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.
REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.
** 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.
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2.
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5.
1
1
1
1
6
55323-VUE-A
55423-VUE-A
64143-VUE
633810-VUA
63300-VUE
06200-VUE
EVAPORATOR SUBCASE H/C/D w/ STD LOUVERS
EVAPORATOR SUBCASE H/C/D w/ BLK LOUVERS
FRONT EVAPORATOR BRKT. KIT
UNIVERSAL DEFROST DUCT KIT
INSTALLATION KIT
2” DUCT HOSE
EVAPORATOR KIT
11300-VUZ-A
11400-VUZ-A
No. QTY. PART No. DESCRIPTION
SLIMLINE HEAT/COOL & DEFROST PACKING LIST
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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 4 OF 13
IMPORTANT NOTICE-PLEASE READ
FOR MAXIMUM SYSTEM PERFORMANCE VINTAGE AIR RECOMMENDS THE FOLLOWING:
LUBRICANT CAPACITIES:
134a SYSTEM
CHARGE WITH 1.8 lbs.
(1lbs. 12ozs) OF REFRIGERANT
NEW COMPRESSOR - NO ADDITIONAL OIL NEEDED
USED COMPRESSOR - CONSULT VINTAGE AIR
SERVICE INFO:
SAFETY SWITCHES:
ATTENTION: SYSTEM COMPONENTS: THE COMPRESSOR, EVAPORATOR, CONDENSER & DRIER ARE CAPPED.
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.
THIS KIT DOES NOT CONTAIN HEATER HOSE.. YOU MUST PURCHASE 8 FEET OF 5/8” DIA..
HEATER HOSE FROM VINTAGE AIR(31800-VUD) OR FROM YOU LOCAL PARTS RETAILER.
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.
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. VINTAGE AIR RECOMMENDS OUR SYSTEMS BE CHARGED BY
WEIGHT WITH A QUALITY CHARGING STATION OR SCALE.
REFRIGERANT CAPACITIES FOR VINTAGE AIR SYSTEMS
(FOR OTHER SYSTEMS, CONSULT MANUFACTURER GUIDELINES)
A COMPRESSOR SAFETY SWITCH MUST BE INSTALLED ON EVERY A/C SYSTEM. A BINARY SWITCH
DISENGAGES THE COMPRESSOR CLUTCH IN CASES OF EXTREME LOW PRESSURE (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. COMPRESSOR SAFETY SWITCHES ARE EXTREMELY IMPORTANT SINCE AN A/C SYSTEM RELIES ON
REFRIGERANT TO CARRY LUBRICATION THROUGH THE SYSTEM.

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 5 OF 13
EVERY VEHICLE IS A LITTLE DIFFERENT, DEPENDING ON THE:
1. TYPE OF VEHICLE/ENGINE AND LOCATION OF ENGINE.
2. TYPE OF AIR CONDITIONING EQUIPMENT USED.
3. OWNER’S PREFERENCES.
THERE ARE MANY FACTORS THAT GO INTO MAKING EACH AIR CONDITIONING INSTALLATION
DIFFERENT. USUALLY, ALL OF THE ABOVE DECISIONS ARE MADE BEFORE ANY CONSIDERATION
IS GIVEN TO THE AIR CONDITIONING INSTALLATION. THE A/C SYSTEM IS THEN TAILORED TO FIT
YOUR PARTICULAR APPLICATION.
THE MOUNTING LOCATION OF THE EVAPORATOR UNIT IS DETERMINED IN PART BY THE SPACE
AVAILABLE FOR THE HOSE ROUTING. THE COMPONENTS USED IN THE HOSE ROUTING PROCESS (I.E.
BULKHEAD PLATES, FITTINGS, AND GROMMETS, ETC.) WILL ALSO INFLUENCE THE LOCATION OF
THE EVAPORATOR UNIT. WHEN PLANNING YOUR HOSE ROUTING, YOU MUST INSTALL THE MAJOR
COMPONENT PARTS. MOUNT THE COMPRESSOR, CONDENSER AND DRIER. THE EVAPORATOR
MUST BE TEMPORARILY HELD IN POSITION UNDER THE DASH. FINAL MOUNTING OF THE
EVAPORATOR TO THE FIREWALL SHOULD NOT BE DONE, UNTIL YOU HAVE VERIFIED THAT ALL HOSES
ATTACHING TO THE EVAPORATOR WILL EXIT THE FIREWALL AND/OR KICK PANEL AS PLANNED. THE
HOSES MUST BE RUN EXACTLY THE WAY THEY WILL BE WHEN FINISHED, BEFORE CUTTING THEM TO
LENGTH.
DUCT HOSE ROUTING AND A/C VENT LOCATIONS SHOULD ALSO BE GIVEN CAREFUL CONSIDERATION
BEFORE FINAL MOUNTING POSITION OF THE EVAPORATOR IS SELECTED.
THE VINTAGE AIR SLIMLINE UNIT WAS DESIGNED FOR STREET RODS, CUSTOM CARS, AND TRUCKS. THE
EVAPORATOR UNIT IS DESIGNED TO MOUNT BEHIND THE DASH.
READ THE INSTALLATION INSTRUCTIONS COMPLETELY, AND FAMILIARIZE YOURSELF WITH ALL THE
PARTS AND ILLUSTRATIONS.
THE INSTALLATION OF THIS UNIT VARIES, ACCORDING TO THE BODY MANUFACTURER OR
MODIFICATIONS TO THE ORIGINAL BODY. THE COWL VENT MAY REMAIN OPERATIONAL. TAKE YOUR
TIME, AND DOUBLE CHECK BEFORE DRILLING OR CUTTING.
BEFORE BEGINNING, REMOVE COWL VENT HANDLE AND GLOVE BOX TO EASE INSTALLATION. IF THE
DASH IS EASILY REMOVABLE, REMOVE IT NOW. CHECK FOR, AND FILL IN ANY HOLES IN THE FIREWALL
AND FLOOR. INSULATE AND SEAL FIREWALL, FLOOR, DOOR PANELS, AND HEADLINER TO REDUCE
THE AMOUNT OF HEAT ENTERING THE CAR. FIGURES 1 AND 1A SHOW THE GENERAL LOCATION OF
THE DEFROST DUCTS. LOCATIONS WILL VARY. IF YOUR UNIT IS EQUIPPED WITH THE DEFROST
OPTION, INSTALL THE DUCTS NOW.
FIGURE 1
PLANNING OVERVIEW
FIGURE 1A
1/4”
Dash
5”
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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 6 OF 13
INSTALLATION
FRONT
BRACKET
FRONT
BRACKET
REAR
BRACKETS
DASH LIP
DASH LIP
DRAIN HOSE
#8 x 1/2"
SHEET METAL
SCREWS
DRILL
9/32"
HOLE
IN DASH LIP
DRILL
9/32"
HOLE
IN DASH LIP
1/4" x 1/2" BOLT
1/4" x 1/2" BOLT
1/4" x 1/2" BOLT
1/4" x 1/2"
BOLT
1/4" x 1"
BOLT
1/4" x 1"
BOLT
1/4" NUT 1/4" NUT
1/4"
FLAT WASHER
1/4"
FLAT WASHER
FIGURE 2
FIGURE 3
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ATTACH EVAPORATOR BRACKETS TO EVAPORATOR (SEE FIGURE 2).
POSITION EVAPORATOR WITH BRACKETS UNDER DASH. MARK AND DRILL TWO (2) 9/32"
DIAMETER HOLES UNDER THE LIP OF THE DASH.
ATTACH THE FRONT BRACKETS TO THE DASH WITH 1/4" x 1" BOLTS, WASHERS AND NUTS PROVIDED
(SEE FIGURE 2).
ATTACH REAR EVAPORATOR BRACKETS (USING TWO #8 x 1/2" SHEET METAL SCREWS) TO THE COWL
OR FIREWALL.
ATTACH THE DRAIN HOSE (SEE FIGURE 3) AND DRILL A 9/16" DIAMETER HOLE IN FIREWALL 1" BELOW
THE BOTTOM OF THE EVAPORATOR.

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 7 OF 13
NOTE: THE DRIER IS USUALLY MOUNTED WHERE YOU HAVE ROOM FOR IT.
JUST REMEMBER TO MOUNT IT IN THE COOLEST SPOT POSSIBLE AND
VERTICALLY SO THE SIGHT GLASS IS DIRECTLY ON TOP. (NOT NEXT TO
THE EXHAUST MANIFOLD). IT CAN BE MOUNTED INSIDE THE VEHICLE
AS WELL.
INSTALLATION CONTINUED
PUSH THE 5/16" I.D. HOSE ONTO THE STRAIGHT #6 FITTING. (SEE HOSE ROUTING ILLUSTRATION ON
PG. 8). INSTALL THE FITTING ONTO THE EXPANSION VALVE (FINGER TIGHT). PUSH THE 1/2" I.D. HOSE
ONTO THE STRAIGHT #10 FITTING, AND INSTALL THE FITTING ONTO THE #10 LINE ON THE EVAPORATOR.
(SEE HOSE ROUTING ILLUSTRATION PG. 8).
AT THIS TIME, TRY TO DETERMINE WHERE YOU WANT YOUR LINES TO GO THRU THE FIREWALL. MOVE THE
HOSES TO THAT POINT. HOLD THE FITTINGS UP TO THEIR RESPECTIVE HOSES, AND DETERMINE IF THE
HOSES WILL CONFORM TO THE LOCATION FOR THE BULKHEAD FITTINGS OR OPTIONAL BULK-HEAD PLATE
(VINTAGE AIR PART #34215-VUQ OR 34217-VUQ). THE 1/2" HOSE IS HARD TO BEND AT A SHARP ANGLE,
AND THE FITTINGS TAKE UP A CERTAIN AMOUNT OF SPACE. BEFORE YOU DRILL HOLES IN YOUR
FIREWALL, MAKE SURE THAT YOU CAN MAKE THE HOSES FIT WHERE YOU HAVE PLANNED. THE
ENGINE COMPARTMENT APPEARANCE IS A CONSIDERATION WHEN CHOOSING THIS LOCATION.
WHEN YOU HAVE DECIDED WHERE YOU WANT TO PLACE YOUR BULKHEAD FITTINGS, MARK THESE POINTS
WITH A GREASE PENCIL, AND MAKE A TEMPLATE FROM THE INSIDE LOCATING WHERE THE HOLES WILL BE
CUT. WITH THIS TEMPLATE, LOCATE THE SAME POINTS ON THE OUTSIDE OF THE FIREWALL. MARK THESE
POINTS WITH A GREASE PENCIL.
DETERMINE THE BEST LOCATION FOR THE DRIER THAT WILL ALLOW ADEQUATE ROOM FOR THE HOSE AND
FITTINGS THAT CONNECT THE DRIER TO THE BULKHEAD FITTING.
MOUNT THE DRIER. (KEEP THE DRIER CAPPED AS MUCH AS POSSIBLE. IF YOU MUST SCREW THE FITTING TO
THE DRIER, TAPE IT CLOSED).
AT THIS POINT, CUT HOLES FOR BULKHEAD FITTINGS, AND INSTALL THEM.USING THE HOSE ROUTING
ILLUSTRATION AS A GUIDE, ROUTE REMAINING A/C LINES, AND CUT TO LENGTH.
AT THIS TIME, YOU SHOULD HAVE THE REFRIGERATION HOSES CUT TO THEIR PROPER LENGTH. PAY CLOSE
ATTENTION TO THE ORIENTATION OF ANY HOSE WITH TWO ANGLED FITTINGS. ANY HOSE WITH TWO
ANGLED FITTINGS MUST BE MARKED FROM THE HOSE TO THE FITTINGS TO ASSURE THEY WILL REMAIN IN
THE POSITION AFTER CRIMPING. THE RUBBER HOSE IS ONLY CAPABLE OF A MINIMAL AMOUNT OF TWIST
TO AID ALIGNMENT.
REMOVE HOSES AND CRIMP ENDS. IF YOU DO NOT HAVE ACCESS TO THE PROPER EQUIPMENT, VINTAGE
AIR RECOMMENDS TAKING THEM TO A QUALIFIED A/C SERVICE CENTER FOR CRIMPING. (SEE CRIMPING
INSTRUCTIONS SUPPLIED WITH THE HOSE KIT).
WITH THE EVAPORATOR TRIAL FIT COMPLETE, REMOVE THE UNIT AND LOWER INTO THE VEHICLE.
AFTER CRIMPING HOSES, LOCATE THE #6 A/C HOSE WITH THE STRAIGHT FITTING. LUBRICATE A #6 A/C
O-RING AND THE THREADS ON THE FITTING AND INSTALL ON THE EXPANSION VALVE. TIGHTEN
CAREFULLY. REFER TO FIGURES 4 & 4A, PAGE 9.
LOCATE THE #10 A/C HOSE WITH THE STRAIGHT FITTING. LUBRICATE A #10 O-RING AND THE THREADS
ON THE FITTING, AND INSTALL ON THE #10 LINE OF THE EVAPORATOR. TIGHTEN CAREFULLY. REFER TO
FIGURES 4 & 4A, PAGE 9.
WRAP THE #10 FITTING WITH PRESS TAPE, AND COVER ALL EXPOSED METAL SURFACES. (DO NOT WRAP
THE #6 HOSE, FITTING, OR THE HEATER CORE TUBES). SEE FIGURE 4, PAGE 9.

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 8 OF 13
TYPICAL HOSE ROUTING DIAGRAM
DIRECTION OF REFRIGERANT FLOW INDICATED BY ARROWS
RECEIVER/DRIER
(NOTE FLOW DIRECTION)
#6 LIQUID LINE
SAFETY SWITCH BINARY (ENGINE DRIVEN FAN) TRINARY (ELECTRIC FAN)
COMPRESSOR
CONDENSER
# 8 DISCHARGE
HOSE
EVAPORATOR
# 10 SUCTION HOSE

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 9 OF 13
FIGURE 4
ROUTE HEATER HOSES (REFER TO HEATER HOSE ROUTING INSTRUCTIONS, PG. 10).
MAKE ELECTRICAL AND/OR VACUUM CONNECTIONS, ACCORDING TO THE DIAGRAM FURNISHED
ON PG. 11.
NOTE: THE RED 12GA. WIRE WITH THE 30 AMP CIRCUIT BREAKER SHOULD BE CONNECTED TO A 12
VOLT POWER SOURCE OF AT LEAST 12GA. WIRE. CONNECT MOLDED PLUG WITH THE (RED, YELLOW,
ORANGE) WIRES TO THE CORRESPONDING PLUG FROM THE BLOWER MOTOR. THE SINGLE BLACK WIRE
FROM THE BLOWER MOTOR MUST BE GROUNDED. THE BLUE CLUTCH WIRE RUNS FROM THE THERMOSTAT
TO THE COMPRESSOR SAFETY SWITCH AND FROM THE SAFETY SWITCH TO THE COMPRESSOR.
BE CAREFUL TO ENSURE THAT THIS WIRE IS NOT PINCHED OR IN A POSITION TO RUB ON A
SHARP EDGE AS IT GOES THRU THE FIREWALL. AN OPTIONAL VACUUM RESERVOIR WITH CHECK
VALVE WILL HELP SYSTEM WORK UNDER A VARIETY OF CONDITIONS.
(VINTAGE AIR PART #31200-VUS VACUUM RESERVOIR).
#6 O-RING #8 O-RING #10 O-RING
FOR A PROPER SEAL
OF FITTINGS
INSTALL SUPPLIED
O-RING AS SHOWN
AND LUBRICATE
WITH SUPPLIED OIL.
FIGURE 4A
SUPPLIED OIL
FOR O-RINGS
O-RING,
SLIDE OVER
MALE INSERT
TO SWAGED LIP
HOLD TO
RESIST
TWISTING
LUBRICATE
O-RINGS
#6 LIQUID
HOSE
#10 SUCTION
HOSE
TIGHTEN #6 HOSE
#10 HOSE
PRESS TAPE
O-RING/FITTING INSTRUCTIONS

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 10 OF 13
HEATER HOSE INSTALLATION
•AFTER THE EVAPORATOR IS IN PLACE, RUN 5/8” HEATER HOSE FROM THE BOTTOM HEATER FITTING
ON THE EVAPORATOR THRU THE FIREWALL OR BEHIND THE KICK PANEL THRU FLOOR TO THE INTAKE
MANIFOLD HEATER CONNECTION. INSTALL THE VACUUM HEATER CONTROL VALVE IN THIS LINE.
(PRESSURE) SEE FIGURE BELOW.
•INSTALL 5/8” HEATER HOSE ON TOP FITTING OF HEATER. ROUTE HOSE THRU FIREWALL OR BEHIND
KICK PANEL THRU FLOORBOARD AND OUT TO WATER PUMP CONNECTION. (SUCTION)
FILL 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 VEHICLE IS OPERATING. FAILURE TO FOLLOW ANTIFREEZE RECOMMENDATIONS
WILL CAUSE HEATER CORE TO CORRODE PREMATURELY AND POSSIBLY BURST IN THE A/C MODE AND/OR
FREEZING WEATHER, VOIDING YOUR WARRANTY. CHECK COMPLETE A/C ASSEMBLY FOR PROPER
OPERATION. VINTAGE AIR RECOMMENDS THAT ALL A/C SYSTEMS BE SERVICED BY A CERTIFIED
AUTOMOTIVE AIR CONDITIONING TECHNICIAN ONLY. SEE INSIDE COVER FOR SERVICE INFORMATION.
•START ENGINE AND RUN, UNTIL NORMAL OPERATING TEMPERATURE IS REACHED. PLACE SWITCH IN
HEAT POSITION, AND SELECT FAN SPEED DESIRED.
THE SYSTEM WILL HEAT THE VEHICLE. (BE SURE THE ENGINE THERMOSTAT HAS OPENED, AND
THE APPROVED ANTIFREEZE MIXTURE HAS BEEN CIRCULATED THRU THE HEATER CORE BEFORE
TESTING THE A/C MODES).
•WHEN VALVE IS CLOSED, INLET SIDE OF VALVE SHOULD BE HOT AND OUTLET SIDE SHOULD
BE COOL. WHEN THE VALVE IS OPEN, BOTH INLET AND OUTLET SIDES SHOULD BE HOT.
GROMMETS
CLAMPS
CLAMPS
TO VACUUM SOLENOID
TO HEATER CORE
FROM MANIFOLD
HEATER
CONTROL
VALVE
EVAPORATOR
UNIT
(BE SURE TO FOLLOW FLOW ARROW ON HEATER CONTROL VALVE)

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 11 OF 13
VACUUM
SOLENOID
(A)
OPTIONAL VACUUM RESERVOIR
VINTAGE AIR PART#31200-VUS
WIRING/VACUUM DIAGRAM
HEAT/COOL/DEFROST
BLUE
BLUE
PURPLE CONNECT TO
KEY ON IGNITION
SOURCE
(5 AMP FUSE)
TO BATTERY OR
BATTERY TERMINAL
ON
STARTER SOLENOID.
30
AMP
CIRCUIT
BREAKER
ENGINE
VACUUM TO INTAKE MANIFOLD
VACUUM SOURCE
GREY
DEFROSTER
DOOR
HEATER
CONTROL
VALVE
VACUUM
RESERVOIR
87 87
86 86 85 85
30 30
87a 87a
BLUE
GREEN
WHITE
GROUND
GROUND
GROUND
WHITE
WHITE
WHITE
LARGE
DIODE
BLACK
GROUND
SMALL
DIODE
MODE
SWITCH
POWER
RELAY
HIGH
BLOWER
RELAY
FAN
SPEED
SWITCH
RED
RED
RED
RED
RED
RED BLACK GREY
Y
B AT.
AUX.
RED
YELLOW
YELLOW
ORANGE
ORANGE
ORANGE
M M
L
B C B C
H L H
BLACK
BLACK
BLACK
BLACK
BLACK
WIRES =
VACUUM
LINES =
BLACK
A/C
CLUTCH
A/C
THERMOSTAT
GREEN
BLUE
(REQUIRED)
COMPRESSOR
SAFETY SWITCH
(BINARY TYPE)
VACUUM
SOLENOID
(B)
GROUND
BLOWER
MOTOR

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901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 12 OF 13
AIR CONDITIONING ADJUSTMENTS:
ADJUSTING A/C THERMOSTAT:
ADJUSTABLE
KNOB
CAPILLARY
TUBE
TO
EVAPORATOR
COIL
CLOCKWISE
COUNTERCLOCKWISE
COLDER
WARMER
THERMOSTAT ADJUSTMENT
THE AIR CONDITIONER THERMOSTAT CONTROLS COIL TEMPERATURE. THERMOSTATS ARE SHIPPED ADJUSTED
FULLY COLD (CLOCKWISE), AND IN THE MAJORITY OF CASES, THE A/C WILL OPERATE CORRECTLY AS
SHIPPED.
TURNING THE KNOB TO THE RIGHT (CLOCKWISE) MAKES THE SYSTEM OPERATE COLDER. IF THE THERMOSTAT
IS SET TOO COLD THE EVAPORATOR COIL WILL "ICE UP," MEANING THE EVAPORATOR COIL IS RESTRICTED
WITH ICE, AND COLD AIR FLOW WILL BE REDUCED.
TURNING THE KNOB TO THE LEFT (COUNTERCLOCKWISE) MAKES THE SYSTEM OPERATE WARMER. THE
COMPRESSOR CLUTCH WILL CYCLE OFF FREQUENTLY. THE EVAPORATOR COIL WILL NOT GET AS COLD, AND
THE AIR TEMPERATURE WILL NOT BE AS COLD.
1.) SYMPTOM: THE A/C WORKS WELL AT FIRST THEN QUITS COOLING. THE AIRFLOW FROM THE VENTS IS LOW, AND
THE COMPRESSOR CLUTCH CYCLES INFREQUENTLY.
SOLUTION: THE THERMOSTAT IS SET TOO COLD AND THE EVAPORATOR IS "ICING UP" AND RESTRICTING AIRFLOW.
ALLOW THE ICE TO MELT AND SET THE THERMOSTAT WARMER (COUNTERCLOCKWISE) 1/8 OF A TURN EACH
ADJUSTMENT UNITL THE SYMPTOMS DIMINISH.
2.) SYMPTOM: A/C NEVER GETS COLD AND THE COMPRESSOR CLUTCH CYCLES FREQUENTLY.
SOLUTION: THE THERMOSTAT IS TOO WARM. SET THE THERMOSTAT COLDER (CLOCKWISE) 1/8 OF A TURN EACH
ADJUSTMENT, UNTIL THE DESIRED AIR TEMPERATURE IS REACHED. AVOID SETTING THE THERMOSTAT TOO COLD.
3.) SYMPTOM: THE A/C NEVER GETS COLD, SOMETIMES EVEN BLOWS HOT, AND THE A/C COMPRESSOR CLUTCH
INFREQUENTLY CYCLES OFF.
SOLUTION: THE HEATER MAY BE ON AT ALL TIMES. CAREFULLY FEEL THE HEATER HOSE BETWEEN THE
EVAPORATOR AND THE HEATER CONTROL VALVE. THIS HOSE SHOULD NOT BE HOT IN THE A/C MODE. IF THE
HOSES ARE HOT....
A)- THE HEATER CONTROL VALVE MAY BE INSTALLED BACKWARDS. CHECK THE FLOW DIRECTION ARROW ON THE
VALVE AGAINST THE ILLUSTRATION IN YOUR INSTALLATION INSTRUCTIONS.
B)- IF CABLE OPERATED: THE VALVE MAY BE MISADJUSTED.
C)- IF VACUUM OPERATED: IT MAY BE GETTING VACUUM AT ALL TIMES (CHECK ELECTRIC SOLENOID).
D)- THE HEATER CONTROL VALVE MAY BE INSTALLED IN THE WRONG HOSE. IT MUST BE INSTALLED IN THE HOSE
COMING FROM THE INTAKE MANIFOLD ENGINE COOLANT PRESSURE PORT.
•
•
•

901300-VUZ REV I 10/29/14, SLIMLINE HCD PG 13 OF 13
EVAPORATOR KIT PACKING LIST
EVAPORATOR KIT
11300-VUZ-A
11400-VUZ-A
No. QTY. PART No. DESCRIPTION
CHECKED BY:
PACKED BY:
DATE:
1.
2.
3.
4.
5.
1
1
1
1
6'
55323-VUE-A
55423-VUE-A
64143-VUE
633810-VUA
63300-VUE
06200-VUE
EVAPORATOR SUBCASE H/C/D w/ STD LOUVERS
EVAPORATOR SUBCASE H/C/D w/ BLK LOUVERS
FRONT EVAPORATOR BRKT. KIT
UNIVERSAL DEFROST DUCT KIT
INSTALLATION KIT
2” DUCT HOSE
OFF
LO
MED
HI
ENCO
A/C
HEAT
DEF
C
NOTE: IMAGES MAY NOT DEPICT ACTUAL PARTS AND QUANTITIES.
REFER TO PACKING LIST FOR ACTUAL PARTS AND QUANTITIES.