Heating, Ventilating And Air-Conditioning (Hvac); General; Air-Conditioning Controls - jcb JS300 Service Manual

Heating, Ventilating and Air-Conditioning (HVAC)

General

The operator must set the controls to obtain the best working environment in the operator station.
Poor ventilated air can cause tiredness. Do not operate the machine for long periods without ventilation or with
the operator station fully closed and the fan turned off.

Air-Conditioning Controls

Heater Only Controls
Introduction
A
Recirculation switch
B Temperature control switch
C 3-speed fan switch
1 Recirculation switch - position '1'
2 Recirculation switch - position '2'
The heater control panel is installed on the left console.
The temperature is adjusted by the recirculation switch, a 3-speed heater fan switch and the temperature
control switch.
Adjust the air vents to direct the hot air flow to the front window (for demisting) and/or the cab floor.
Air Control
Turn the recirculation switch to position '1' to let fresh air enter the cab.
Turn the recirculation switch to position '2' to recirculate the air, this should be used when you operate in a
dusty working environment. Position '2' can also be used to increase the heater performance during cab warm-
up and when machine coolant temperatures are below optimum.
Heat Control
Turn the temperature control switch clockwise to increase the temperature.
Turn the temperature control switch counterclockwise to decrease the temperature.
Heater Fan
Turn the 3-speed fan switch to adjust the speed of the heater fan. This functions only when the ignition key
is in position I.
124
Figure 165.
B
C
9831/1100-2
Heating, Ventilating and Air-Conditioning (HVAC)
2
1
A
Operation
124