9
901301 REV D 10/27/14, SLIMLINE HC PG 9 OF 12
HEATER HOSE INSTALLATION
GROMMETS
CLAMPS
CLAMPS
TO VACUUM SOLENOID
TO HEATER CORE
FROM MANIFOLD
EVAPORATOR
UNIT
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.
(BE SURE TO FOLLOW FLOW ARROW ON HEATER CONTROL VALVE)
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 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 PREMATURLEY 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, UNITL 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.
HEATER
CONTROL
VALVE
•
•
•
•
•
