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The purpose of this Information Report is to establish minimum performance levels in the operator's environment for heated, ventilated, and air- conditioned construction and industrial equipment cabs. Also established are heating and air-conditioning test procedures for determining operator environment temperature, humidity, and pressurization. Note: The subject of noise is not treated in this information Report. This Information Report establishes the minimum performance levels in the operator's environment: Minimum cab pressurization and ventilation levels under all conditions of heating, air conditioning, and ventilation. Maximum humidity and minimum temperature differential under air conditioning operation. minimum temperature differential under heater operation. The report also establishes uniform test procedures for determining minimum performance levels, as defined under 2.1.1- 2.1.3, under Heater and Air conditioner operation.

This SAE Standard establishes uniform test procedures for the defrosting systems of off-road, self-propelled work machines used in construction, general purpose industrial, agricultural, forestry, and specialized mining machinery categories as identified in SAE J1116, JUN86. It includes tests that can be conducted with uniform test equipment in commercially available laboratory facilities, as well as in an appropriate outdoor environment.

This SAE Recommended Practice establishes a uniform test procedure for evaluating performance of operator enclosure pressurization systems for construction, general-purpose industrial, agricultural, forestry, and specialized mining machinery as categorized in SAE J1116 for off-road, self-propelled work machines.

This recommendation establishes a uniform test procedure for evaluating performance of agricultural equipment operator enclosure pressurization systems.

The purpose of this document is to establish air conditioning design guidelines that will apply to most systems rather than the specific design of any particular system. Operating conditions and characteristics of the equipment will determine the design of any successful system, and since these characteristics and conditions vary greatly from one application to another, the designer must determine the goals expected to be reached under the conditions encountered. To determine the capacity of such items as blowers, condenser fans, condenser coils, evaporator coils, filters, compressors, etc., will require the adherence to several guidelines, some of which are outlined in the following paragraphs.

SAE J3078/3 establishes a uniform test procedure for evaluating performance of operator enclosure pressurization systems. This standard is applicable to off-road, self-propelled work machine, as defined in SAE J1116, and includes tractors and machinery for agriculture and forestry as defined in ASABE standard ANSI/ASAE S390.