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Summary of Contents for Haldex GeminiMDx
- Page 1 INSTALLATION/SERVICE MANUAL ® High Capacity Dual Dryer System...
- Page 2 Identification” on Page 8. the GeminiMDx Dryer. • If the GeminiMDx is to be bolted directly to • Always wear proper personal protective the frame or other support member, check equipment, including approved eye glasses.
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Page 3: Table Of Contents
The products described within this literature, including without limitation, product features, specifications, designs, availability and pricing are subject to change by Haldex and its subsidiaries at any time without notice. This document and other information from Haldex, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users having technical expertise. -
Page 4: Geminimdx Manifold Dual Dryer (High-Capacity Air Drying System)
GUIDE (L31279) GeminiMDx Manifold Dual Dryer GeminiMDx Overview In its most basic form, the GeminiMDx dual dryer is the connection of two DRYest Air Dryers in parallel to treat the compressed air produced by high capacity air compressors. The GeminiMDx is a desiccant type dryer that removes moisture and contaminants from the compressed air before entering the air brake system. -
Page 5: Pre-Treatment
DUAL DRYER SYSTEM DUAL DRYER SYSTEM ® ® INSTALLATION/SERVICE INSTALLATION/SERVICE MANUAL (L31279) GUIDE (L31279) Pre-Treatment Consep Overview 3/4”-18 NPTF 3/4”-18 NPTF The Consep consists of a condenser/separator and a Automatic Drain Valve (ADV). The condenser/separator WET TANK will condense and separate contaminants from the compressed air. -
Page 6: Drying
MANUAL (L31279) Drying DRYest Air Dryer Overview OPTIONAL PRE-TREATMENT The Haldex DRYest is a desiccant type dryer that effectively collects and removes moisture, oil and WET TANK contaminants before they enter the compressed air system. The DRYest provides filtered, moisture free air to the brake system which reduces freezing and corrosion of the components in the air system. -
Page 7: Charging Phase
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Drying (cont’d) DRYest Function Cut-In Charging Phase As air is consumed by the brake system, the air pressure Air from the compressor or pre-treatment flows into decreases until the air governor cut-in pressure is the inlet manifold and divides to enter each air dryer. -
Page 8: System Specifications
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) System Specifications Dual Consep and Dual Consep Dual Dryer Dual Dryer Only Only Weight 53 lbs. 11 lbs. 40 lbs. (with mounting bracket) Envelope 20”W x 15”H x 12”D 6”W x 12”H x 8”D 14”W x 13”H x 10”D Inlet/Outlet Ports 3/4”... -
Page 9: Plumbing Schematics
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Plumbing Schematics Pre-Treatment and Drying 3/4”-14 NPTF 3/4”-14 NPTF WET TANK COMPRESSOR PURGE TANK GOVERNOR 1/4”-18 NPTF Drying Only 3/4”-14 NPTF OPTIONAL PRE-TREATMENT WET TANK PURGE TANK COMPRESSOR GOVERNOR 1/4”-18 NPTF Page 7... -
Page 10: Dimensions And Port Identification
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Dimensions and Port Identification Dual Consep Assembly Page 8... - Page 11 DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Dimensions and Port Identification Dual Dryer Assembly Page 9...
- Page 12 DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Dimensions and Port Identification Dual Consep/Dual Dryer Assembly Page 10...
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Page 13: Electrical Diagrams
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Electrical Diagrams Dual Consep 12/24V Non-Heated Dual Consep 12/24V Heated with Without Relay Electrical Relay or Timer Relay See Harness Wiring Options Below Electrical Relay (not included) Timer Relay (not included) Normal - Connect to #87 (#87A not used) Normal - Connect to #87 as shown (#87A not used) Heated - Connect to #87A as shown (#87 not used)) ON 3 Seconds/OFF 45 Seconds... -
Page 14: Operational Check
2. Build up system air pressure to governor cut-out the GeminiMDx will not cycle excessively. and note that the GeminiMDx dryer purges with an a. Apply the parking brakes, build system pressure audible exhaust of air. -
Page 15: Troubleshooting
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Troubleshooting PROBLEM CAUSE REPAIR Water in air system Contaminants in desiccant Change cartridge canister. Check compressor for excessive oil passage. Leaks in air system Tighten air connections, soap connection and recheck for leaks. Excessive compressor cycling Excessive leaks in air system Tighten air connections, soap... -
Page 16: Suggested Maintenance Schedule
Ensure purge valve operation. Drain air system. One Year or 30,000 Miles, whichever comes first Weekly Drain GeminiMDx purge tank and air tanks. If the suggested interval is too long or too short Monthly Operational check of all for the particular application, adjust accordingly GeminiMDx functions. -
Page 17: Geminimdx Part Number/Description Listing
47110021 Heater Repair Kit for 24V DRYest 24V Heater, Pigtail, Splice Connectors DQ6121 Purge Tank Kit for GeminiMDx Dual Dryer System 600 cubic inch purge tank; fittings; 3/8” Air Line; Drain valve DQR0001 GeminiMDx Retrofit Kit, 12 VDC Includes: DA37259, 102494DM, 102494DN and DQ6121... -
Page 18: Service Kit Components Identification
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Service Kit Components Page 16... -
Page 19: Service Kit Contents
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Service Kit Contents Component Description CANISTER, CARTRIDGE BOLT, HEX HEAD SHOULDER M10 X 40 CARTRIDGE, DESICCANT PIN, LOCKING NUT, M10 O-RING PIN, LOCKING CAP, VALVE MOUNTING BRACKET, AIR DRYER VALVE, SAFETY 160 PSI VALVE UNIT WITH SILENCER VALVE UNIT WITH DRAIN TUBE BOLTS, VALVE UNIT... -
Page 20: Removal/Installation Instructions
3. Disconnect electrical connection from the Consep ADV. 4. Disconnect the electrical connection from both heating elements. 5. Remove the mounting bolts from the GeminiMDx bracket. 6. Remove the air dryer for inspection and maintenance. 7. Reinstall / install the unit to the mounting location using the mounting bolts. -
Page 21: Valve Unit With Integrated Purge Valve
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Removal/Installation Instructions Cartridge Canister (cont’d) Valve Unit with Integrated Purge Valve 9. Apply silicone-based grease to o-rings. NOTE: Purge valve is not a serviceable item. 10. Install replacement nut and plastic locking pins. 1. -
Page 22: 12/24 Vdc Heater Assembly
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Removal/Installation Instructions (cont’d) 12/24 VDC Heater Assembly Valve Unit with Integrated Purge Valve (cont’d) 6. Install valve unit to dryer base. 1. Disconnect electrical plug from heating assembly. 2. Remove the retaining screw (T25 Torx), heater assembly and o-ring from dryer base. -
Page 23: Outlet Check Valve Assembly
1. Disconnect air line from Consep manifold to dryer manifold. 2. Remove control manifold to access outlet check valve plugs. 2. Disconnect air line from GeminiMDx to system tanks. 3. Clean and remove all debris from around the check valve. -
Page 24: Cyclone Insert
5. Reinstall safety valve. Tighten banjo bolt(s) to: M22 45-55 ft-lbs (61-75 Nm) M12 130-150 in-lbs (15-17 Nm) 10. Reconnect air line from system tanks to GeminiMDx. 11. Reconnect air line from dryer manifold to Consep manifold. Page 22... - Page 25 DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Removal/Installation Instructions (cont’d) Cyclone/ADV for Consep 1. Ensure air pressure is at 0 PSI in air system. 6. Install ADV for Consep. Tighten four mounting nuts to 80-98 in-lbs (9-11 Nm). 2. Disconnect electrical connection. 3.
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Page 26: Glossary
DUAL DRYER SYSTEM ® INSTALLATION/SERVICE MANUAL (L31279) Glossary Adsorption: Process by which water and oil Outlet Check Valve: A valve that prevents molecules at high pressure are captured by downstream air from flowing back through the desiccant. the air dryer. Air Dryer: A device that cools, filters and Purge Cycle: The time during which the dries the air delivered by an air compressor. - Page 27 inside back cover - blank...
- Page 28 With more than 100 years of intensely focused innovation, Haldex holds unrivaled expertise in brake systems and air suspension systems for heavy trucks, trailers and buses. We live and breathe our business, delivering robust, technically superior solutions born from deep insight into our customers’ reality.
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