1975 Datsun 280z FSM - Spooled up Racing

Air Conditioning
HEATER (REC) position
••
•-•
AIH
kit VENT BI-ikL
FR fSH, fTF jIc
TEMP m - H SL FA H N TER °. FF 1
1
. l l - ^ ' " ••> «
U in;
AIR lever:
FAN lever:
TEMP lever:
In HEATER (REC) position
In any position other than OFF
Cold to Hot
1
A
DEF
2 3 4
• • •
—n—>
u
Magnet valve - F.I.C.D.
Vacuum selector valve
Defroster nozzle /
/
AC546
Fig. AC-11
Air flow - HEATER (REC) position
1. Air intake door... The air intake
door is in the closed position, shutting
off outside air. Air is circulating inside
the passenger compartment.
2. Mode door... Vacuum is introduced
both to D l and D 2 of the
double-action actuator and the mode
door is in its fully open position. All
the outside air thus flows into the
heater core.
3. Heater door ... The heater door
is in the open position. Warm air
heated by the core is discharged from
the opening located above occupant's
feet. A small portion of it goes to the
defroster nozzles.
4. Vacuum cock . . . Vacuum is imposed
on the actuator, causing the
AC-11
vacuum cock to open.
5. Fast idle actuator
tor is not in operation.
. The actua-
Temperature of the discharge air
varies with the amount of water flowing
into the heater core via the water
cock. The water cock is controlled by
a control cable from the TEMP lever.