3-12
920011-649 Operator Manual Component Identification
3.7 Dual Pre-Filter and
Pressure Regulator
Assembly (Required
Accessory)
See Figure 3-8.
The Dual Pre-Filter and Pressure Regulator Assembly (required
accessory) is designed to help reduce the particulate and microbial
load on the final 0.2 μm bacterial-retentive filter. This required
accessory includes:
• one multi-layer depth media filter cartridge.
• one dual-layer absolute membrane filter cartridge.
• one pressure regulator to reduce incoming water pressure to
310 kPa (45 psig).
• one spanner wrench to easily remove and reinstall filter bowls for
maintenance (refer to Figure 6-6).
• two manual ball shutoff valves.
• pressure gauge.
• Installation Instructions (920-500-287).
Pressure Regulator
From Building Hot Water Supply
Multi-Layer Depth Media
Filter Cartridge
Dual-Layer Absolute Membrane
Filter Cartridge
Manual Ball Valve
Figure 3-8. Dual Pre-Filter and Pressure Regulator Assembly (Required Accessory)
Manual Ball
Valve
Pressure Gauge
To Processor
Hot Water Inlet