9
1 - At a Glance
1.5 - Switch Plate
1. Vacuum switches.
2. Pump switch.
3. Pump-out switch.
4. Heater three-position switch (not installed on
LTD5 and LTD12).
5. Heater indicator lights. Each light illuminates when the
corresponding heater is on (not installed on
LTD5 and LTD12).
6. Dual circuit indicator light.
7. Pressure gauge.
1
2
3
6
7
LTD3 shown as example
5
HEATER 1 ONLY
OFF
HEATERS 1 & 2
4