Introduction
The Ingersoll Rand 47556402001 23497001 Water-Cooled Preventive Maintenance Kit with Modification combination covers the intake pre-filtration portion of a modified 8,000-hour major-service program for the R90–110 I platform. The published service data identifies 47556402001 as the water-cooled package with modification and lists one 23497001 pre-filter pad.
Clean intake air is fundamental to reliable rotary screw compressor operation. Ambient air can contain dust, fibers, and other airborne contamination, so the intake system uses filtration stages to limit the amount of particulate matter entering the compressor.
The 23497001 reference represents the pre-filtration stage, while 23429822 represents the primary air-filter element. The published 47556402001 package contains both, each with a quantity of one. This distinction is important when ordering or documenting maintenance because the two components are not interchangeable.
Pre-filtration is particularly useful where the compressor is exposed to dust or other coarse contamination. By capturing larger particles upstream, the pre-filter can reduce the loading imposed on the primary filter and help maintain cleaner intake conditions.
The pre-filter should be evaluated as part of the complete intake assembly rather than as an isolated piece of filter media. The housing, intake door, grill, retaining components, and surrounding surfaces should be inspected for dust accumulation, damage, or conditions that could permit unfiltered air to bypass the pad.
The MOD status of 47556402001 is significant for service planning even though 23497001 itself is unchanged. The modification is reflected elsewhere in the package, specifically by the use of 47553881001 instead of the standard 47553880001 inlet-valve service kit.
This means maintenance teams should not assume that every component of the modified package differs from the standard package. Some recurring components, including 23497001, remain the same. Configuration-specific components can change, so the complete kit number and modification status should remain part of the maintenance record.
During replacement, the pre-filter should be installed in its intended position and retained securely. Incorrect positioning can create an airflow bypass path and reduce the effectiveness of the intake filtration system.
The primary filter should also be inspected during the same service. A heavily loaded primary filter, unusually dirty downstream surfaces, or evidence of dust bypass can indicate a problem with the intake assembly rather than simply normal filter loading.
The broader 47556402001 package is a comprehensive major-service event. In addition to the two intake filtration components, it includes the coolant filter, separator, minimum-pressure-valve kit, temperature-control valve kit, modified inlet-valve kit, water-cooler seal kit, and motor grease.
For purchasing teams, keeping 47556402001 and 23497001 together provides useful traceability. The kit number identifies the modified 8,000-hour maintenance event, while the component number identifies the individual pre-filter required within that configuration.
The standard water-cooled package 47555465001 also lists 23497001, showing that the pre-filter is shared between standard and modified water-cooled R90–110 I configurations. Therefore, the presence of 23497001 alone does not determine whether a compressor requires the standard or modified major-service package.
Selection should instead be based on the compressor's current configuration, modification history, and serial-number-specific parts documentation.
Exact current dimensions, material formulation, thickness, airflow-resistance characteristics, package dimensions, and kit weight for 23497001 and 47556402001 were not sufficiently verified from authoritative documentation. These values are therefore intentionally not estimated.
For industrial compressor operators and maintenance professionals, 47556402001 and 23497001 provide a clear reference for pre-filtration within the modified 8,000-hour water-cooled R90–110 I maintenance program. Correct configuration matching and proper pre-filter installation can help control intake contamination and support dependable compressor operation.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Kit Reference | 47556402001 |
| Component Reference | 23497001 |
| 47556402001 Product Type | 8,000-Hour Water-Cooled Preventive Maintenance Kit with Modification |
| 23497001 Product Type | Pre-Filter Pad |
| Documented Kit Application | R90–110 I |
| Published Quantity | 1 |
| Primary System | Compressor intake-air filtration |
| Primary Function | Coarse/upstream pre-filtration |
| Primary Air Filter in Package | 23429822 |
| Cooling Configuration | Water-cooled |
| Modification Status | MOD |
| Modified Inlet-Valve Kit | 47553881001 |
| Standard Inlet-Valve Kit | 47553880001 |
| Filter Material | Verify current manufacturer specification |
| Pad Dimensions | Verify current parts documentation |
| Thickness | Verify current manufacturer specification |
| Airflow Characteristics | Application-specific; verify applicable specification |
| Service Interval | 8,000 hours |
| Kit Contents | Verify current configuration-specific bill of materials |
| Installation | Follow applicable Ingersoll Rand service documentation |
| Compatibility | Confirm compressor model, serial number, cooling configuration, and MOD status |
The published R90–110 I service data directly lists one 23497001 pre-filter within 47556402001.
Recommended Companion Models
| Model | Product Name |
| 23429822 | Standard Air Filter Element |
| 23424922 | Coolant Filter Element |
| 23545841 | Separator Tank Element |
| 39218193 | Motor Grease SHC220 |
These components are listed within the same modified 8,000-hour water-cooled R90–110 I maintenance configuration and provide complementary primary filtration, coolant filtration, air/oil separation, and motor-lubrication functions.
Frequently Selected Alternatives
| Model | Product Name |
| 47555465001 | 8,000-Hour Water-Cooled Preventive Maintenance Kit |
| 47555208001 | 8,000-Hour Air-Cooled Preventive Maintenance Kit |
| 47555212001 | 8,000-Hour Air-Cooled Preventive Maintenance Kit with Modification |
| 47674732001 | 4,000-Hour Preventive Maintenance Kit |
