ElectricalHard

Air Conditioner Installation

Install an aftermarket air conditioning system in enclosed cab mini excavators.

Estimated: 6-10 hours
1 model-specific guide
Model-Specific Guides

AGT QNT30

4 steps • 0 components

General Guide

A/C System Installation

Adding air conditioning to an enclosed cab requires mounting the compressor, condenser, evaporator, and running refrigerant lines. This is a complex installation requiring HVAC knowledge.

Tools Required:

A/C kitRefrigerant recovery/charge equipmentWrenchesElectrical suppliesManifold gauges

Safety Notes

  • • R134a is pressurized - use proper equipment
  • • EPA certification required for refrigerant handling
  • • Compressor belt can cause injury

General Steps:

1

Verify machine has enclosed cab suitable for A/C installation.

2

Select A/C kit sized for cab volume and climate conditions.

3

Mount compressor to engine using appropriate bracket.

4

Install drive belt from crankshaft to compressor pulley.

5

Mount condenser in location with good airflow - often near radiator.

6

Install evaporator unit inside cab - typically under dash or headliner.

7

Run refrigerant lines between compressor, condenser, and evaporator.

8

Install expansion valve and receiver/drier.

9

Wire compressor clutch and controls to electrical system.

10

Evacuate system and charge with R134a refrigerant.

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