OPERATION 3.3 OPERATOR’S CAB - CONTROLS Interface Panel for Diagnostics and Controls for Heating and Air Conditioning (continued) Legend for illust. Z25354 (5) Control module for the engine independent auxiliary cab heater (special equipment) . This module is used for switching ON and OFF the auxiliary cab heater during operation of the shovel with the Diesel engines running, and for pre-selection of heater start times and duration of heating periods. For detailed setting instructions of the control module refer to the separate operating instruction sheet in volume 2 binder.
(6) Button for actual time indication (7) Button for preselection of heating time (8) Button for heating indication (9) Button for settings backwards (10) Button for settings forward (11) Not used (12) Display shows the operating condition of the auxiliary cab heater (13) Thermostat for engine independent auxiliary cab heater. (if so equipped) This unit is used to maintain a desired temperature in the cab during standstill periods of the shovel. For operation of the auxiliary cab heater, power supply must be provided by an external power source connected to the 1X1 plug socket at the cab stairway. The battery main switches and the pre-heating system main switch must be in ON position.
See section PRE-HEATING SYSTEMS on page 224 and section OPERATING THE HEATER; VENTILATION AND AIR CONDITIONING on page 196 for more information. The fuel shut-off cock for the water heater HYDRONIC must be in open position, see page 199 for more information. Activate the heater with control module (5). With switched off pre-heating system, the control unit (13) is inoperative. (14) Temperature selector button (15) Air conditioner temperature control knob REMARK To lower the cab air temperature (maximum cooling output) rotate the control knob to the left ( - ) sign. To reduce cooling output rotate the knob to the right ( + ) sign.
(16) Air conditioner blower control knob (17) Indicator light, air conditioning ON (18) Indicator light, air conditioning blower ON 91