Zoomlion ZRT850, Operator'S Manual

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Operator’s Manual for Rough Terrain Crane
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(3) HEAT Mode
Turn on the A/C FAN SPEED / MASTER SWITCH after the engine is started:

Set the A/C FAN SPEED / MASTER SWITCH to blow air.
RESULT – The fan power indicator (red) illuminates.

Push down the HEATER POWER SWITCH.
RESULT – The heater is ON.

Turn the A/C FAN SPEED / MASTER SWITCH (1) counter-clockwise between 3
fan speeds (HI, MID, LOW) to get the desired temperature.
CAUTION

Do not disassemble an A/C system that is in the Warranty Period without
consent from the A/C manufacturer.

Examine the condition and tension of the compressor belt at a regular interval.
If necessary, adjust the tension on the belt.

You must clean the condenser at a regular interval.

You must use the same type of refrigerant and compressor oil to complete the
repairs on the A/C.

Set the FAN mode to HI when you first start to cool the cab.

Do not repair the A/C system with the parts that are not supplied by the
manufacturer.

When you use the A/C function where it is cool and has a high level of humidity,
examine the evaporator frequently. In these conditions, the evaporator freezes
and causes a blockage for the air that goes through it.

If you operate the crane in a cold area or in winter, set the A/C system to ON for
10 minutes each month.
CAUTION

Make sure that the A/C is in the OFF mode when the engine is OFF or at idle
speed for a long time. The battery drains in these conditions.

When you move the crane for a long distance at low speed, with the A/C in the
ON mode, put the transmission in a low gear. This increases the engine RPM
and decreases the load on the transmission.

Set the A/C to the OFF position when you do one of the items that follow:

Start the crane quickly

Move up a long hill slope.

Make sure that the refrigerant in the A/C system is at the correct level at regular
intervals.
ZRT850 Rough Terrain Crane 6-7