PREVOST H3-41 Maintenance Manual page 908

SECTION 22: HEATING AND AIR CONDITIONING
On X3-series vehicles the condenser is installed
in the 4th baggage compartment and has its
own MUX controlled electrical fan.
FIGURE 46 X3 SERIES SMALL A/C CONDENSER
ASSEMBLY.
4.6 RECEIVER TANK
The receiver tank is located in the condenser
compartment (Figure 47). The function of the
receiver tank is to store the liquid refrigerant.
During normal operation, the level of the
refrigerant should be approximately at the mid-
point of the lower sight glass.
MAINTENANCE
Check refrigerant level and add if necessary,
at the intervals specified by the Lubrication
And Servicing Schedule in Section 24:
LUBRICATION & SERVICING.
34 PA1621 Maintenance Manual All Series | Revised February 2019
FIGURE 47: RECEIVER TANK (H3 SERIES)
FIGURE 48 RECEIVER TANK X3 SERIES
In case of extreme pressure there will be a rise
in the liquid receiver tank.
valve will break at 450 psi and relieve the
receiver tank pressure.
The receiver tank incorporates an inlet valve on
the inlet side (upper section) which allows the
tank to be isolated or serviced. An outlet valve
on the outlet side (lower section) permits
complete isolation from the rest of the system.
During normal operation, inlet and outlet
shutoff valves are in backseated position (stem
out).
When connecting a gauge to the service port,
make sure the shut-off valve is in backseated
position because the service port is not fitted
with a Schrader valve.
A pressure relief