Doosan DL200 User manual

1Electrical System

SP001211
Page 1
Air Conditioner
SP001211
AIR CONDITIONER SP001211
Air Conditioner
Edition 1

SP001211
Air Conditioner
Page 2
MEMO

SP001211
Page 3
Air Conditioner
Table of Contents
Air Conditioner
Safety Precautions............................................... 5
Applicable Models................................................ 5
General Description ............................................. 6
Refrigerant Circulation ......................................... 8
Control Panel ..................................................... 10
Control Specifications ........................................ 11
Temperature Level Control and Display.......... 12
Air Discharge According to Path Selection..... 13
Air-conditioning System Circuit Diagram.......... 16
Troubleshooting.................................................. 18
Weight of R134a Gas Used In Machines....... 20
Refrigerant System Repairs.............................. 21
Refrigerant Safe Handling Procedures ....................... 21
Repair and Replacement Procedure........................... 22
Refrigerant Recovery.................................................... 24
Vacuuming Refrigerant System ................................... 24
Leakage Check............................................................. 26
Refrigerant Charging .................................................... 26
Inspecting System for Leakage................................... 28

SP001211
Air Conditioner
Page 4
MEMO

SP001211
Page 5
Air Conditioner
SAFETY PRECAUTIONS
APPLICABLE MODELS
The contents of this section apply to the following models
and serial number ranges.
CAUTION!
Follow all safety recommendations and safe shop
practices outlined in the front of this manual or those
contained within this section.
Always use tools and equipment that are in good
working order.
Use lifting and hoisting equipment capable of safely
handling load.
Remember, that ultimately safety is your own personal
responsibility.
MODEL SERIAL NUMBER RANGE
DL200 5001 and Up

SP001211Air Conditioner
Page 6
GENERAL DESCRIPTION
The heater and air conditioner are combined into one blower
unit in the right control stand of operator's seat. If
necessary, the operator can control inner temperature using
the operation panel installed in the top of the right side
door.
FG009195
Figure 1

SP001211
Page 7
Air Conditioner
The unit is equipped with an air filtration system which filters
out dirt and dust particles from air being circulated into the
operator's cab. This filter (1, Figure 2) should be cleaned
out at approximately every 500 hours and replaced with a
new one every 1,000 hours.
NOTE: In the event that the unit is being operated in a dusty
environment, cleaning and replacement should be
performed more frequently.
NOTE: Refer to appropriate operation and maintenance
manual for latest service intervals.
1
1
AJS0530L
Figure 2
WARNING!
All service and inspection of the air-conditioning system
should be performed with the starter switch in the "O"
(OFF) position.

SP001211Air Conditioner
Page 8
REFRIGERANT CIRCULATION
1
2
3
4
5
6
HBOI020L
7
Figure 3
Reference
Number Description
1Evaporator
2 Expansion Valve
3 Condenser
4 Condenser Fan
5 Compressor
6BlowerFan
7 Receiver Dryer
Reference
Number Description