Page 1: Table Of Contents
RDS Series Refrigerated Dryer Operations and Maintenance 50-1000 SCFM Table of Contents SECTION 1 General Information Model Numbers/Serial Numbers Description of Operation SECTION 2 Safety Instructions Handling Installation Operation SECTION 3 Specifications Dimensions Specifications SECTION 4 Installation 10-14 Location Typical Installation...
Page 2: General Information
RDS Series — 50-1000 SCFM Section 1 General Information Model Number Coding Flow (SCFM) A = Air Cooled C= Remote Operation Contacts (48V Max. Input) Voltage W = Water Cooled (Shipped Loose) 1= 115/1/60 (Water Cooled F= Packaged Filters (Shipped Loose)
Page 3: Description Of Operation
RDS Series — 50-1000 SCFM Section 1 Description of Operation Refrigerant circuit - Refrigerant (R-22) gas is pumped Operating principal - The dryers described in at high pressure by a compressor to an air or water this manual operate on the same principal. A...
Page 4: Safety Instructions
RDS Series — 50-1000 SCFM Section 2 Safety Instructions 2.1 Handling Figure 2.1.1 Approved Lifting and Moving Method. PANELS,ETC. ARE NOT STRONG ENOUGH TO HANDLE THE WEIGHT OF THE DRYER. DO NOT LIFT THE DRYER ANYWHERE EXCEPT THE DESIGNATED PLACES. PIPING, PERSONAL INJURY AND/OR EQUIPMENT DAMAGE COULD RESULT.
Page 5: Specifications
RDS Series — 50-1000 SCFM Section 3 Specifications 3.0 Dimensions RDS300-1000 RDS50-250 BACK VIEW BACK VIEW Capacity Differential Length Width Height IN/OUT Drain Model SCFM BTU CFM Voltage HP Kw Pressure inches inches inches Conn. NPT Conn. NPT RDS50 6000 349 115-230/1/60 .50 .74...
Page 6: Specifications
RDS Series — 50-1000 SCFM Section 3 Specifications 3.1 Air-Cooled Specifications Chart C o m p . C o m p . C o m p . M in im u m F a n M o to r M o d e l...
Page 7 RDS Series — 50-1000 SCFM Section 3 Specifications 3.2 Air-Cooled Specifications Chart UNIT CHARGE* STANDARD OPERATING CONDITIONS HEAT REJECTION LOW SIDE HIGH SIDE MODEL FUSE (R-22) BTU/HR TEST PRESS. TEST PRESS. INLET AIR PRESS. / INLET AIR TEMP. / AMBIENT AIR TEMP.
Page 8 RDS Series — 50-1000 SCFM Section 3 Specifications 3.3 Air-Cooled Specifications Chart COMP. COMP. COMP. MINIMUM UNIT MODEL FLOW VOLTAGE CIRCUIT AMPS RDS150W-1 150 SCFM 115/60/1 47.0 0.83 10.5 RDS150W-2 150 SCFM 208-230/60/1 28.0 0.83 RDS200W-1 200 SCFM 115/60/1 10.5 67.0...
Page 9 RDS Series — 50-1000 SCFM Section 3 Specifications 3.4 Water-Cooled Specifications Chart CHARGE* STD OPERATING STD OPERATING STD OPERATING LOW SIDE HIGH SIDE MODEL FUSE (R-22) INLET AIR PRESS. INLET AIR TEMP. AMBIENT AIR TEMP. TEST PRESS. TEST PRESS. RDS150W-1 27 oz.
Page 10: Installation
Section 4 RDS Series —50-1000 SCFM Installing the Dryer 4.0 Location DO NOT INSTALL DRYER IN AN ENVIRONMENT OF CORROSIVE CHEMICALS, EXPLOSIVE GASSES, Refrigerated air dryers have water present in them at all times. POISONOUS GASSES, STEAM HEAT, AREAS OF...
Page 11 RDS Series — 50-1000 SCFM Section 4 Installing the Dryer 4.1 Piping and Connections Cont. 3. Place a wrench on the adjusting nut at the top of the The side panels of the dryer slide out to allow access for water-regulating valve.
Page 12: Recommended Filters
RDS Series — 50-1000 SCFM Section 4 Installing the Dryer 4.2 Recommended Filters Figure 4.3.1 Wiring Connections High Voltage Air dryers are part of a complete air treatment system that includes filters, moisture separators, etc. To achieve maximum benefit from the dryer, install proper filtration.
Page 13 Section 4 RDS Series —50-1000 SCFM Installing the Dryer 4.4 Drain Valve Timer Options 4.5 Optional – Remote Contacts Drain Jumper AUXILIARY AND REMOTE CONTACTS - THE DRYER IS Timing (Sec.) Selection EQUIPPED WITH AUXILIARY AND REMOTE CONTACTS FOR INTERFACE TO CUSTOMER CONTROLS AND AUTOMATION...
Page 14 RDS Series —50-1000 SCFM Section 4 Installing the Dryer 4.6.1 Installation Instruction for : Contact Ratings on LEASE Remote Option Remote Option Board are 48 VAC/DC. The remote option (option C) allows start/stop and Terminals 1 and 5 are connected. Power is supplied alarm monitoring functions from a remote location.
Page 15: Start-Up And Shut-Down
RDS Series — 50-1000 SCFM Section 5 Start Up and Shutdown Procedures 5.0 Startup Bypass the flow of compressed air around the dryer. BEFORE STARTING THIS DRYER , FOLLOW THE The hot-gas-bypass valve can only be adjusted INSTALLATION INSTRUCTIONS AND accurately with no load on the dryer.
Page 16: Maintenance And Repair
Thermistors Compressor discharge thermistor - located on the refrigerant discharge line of the refrigerant compressor. Several functions on RDS Series refrigerated air dryers This thermistor senses the temperature of the refrigerant are controlled by the main control board. Variable gas as it leaves the compressor. When the refrigerant...
Page 17 RDS Series —50-1000 SCFM Section 6 Maintenance and Repair Air in, Condenser out & Dewpoint Discharge Thermistor Resistance Values Thermistor Resistance Values Temperature Resistance Temperature Resistance Deg. F (K ohms) Deg. F (K ohms) 72.91 55.3 42.32 62.65 163.25 25.39 99.5...
Page 18 RDS Series —50-1000 SCFM Section 6 Maintenance and Repair Annually DO NOT REMOVE, REPAIR, OR REPLACE ANY ITEM ON THE DRYER WHILE THE DRYER IS UNDER PRESSURE. Tighten all electrical connections. Look for broken, BEFORE BEGINNING ANY REPAIRS, MAINTENANCE, cracked, or bare wires.
Page 19: Troubleshooting Guide
RDS Series — 50-1000 SCFM Section 7 Troubleshooting Guide Problem Possible Cause Solution Dewpoint lamp does not light Power switch is not on Depress switch on front of dryer control panel Supply voltage is incorrect Verify proper voltage at inlet to dryer...
Page 20 RDS Series — 50-1000 SCFM Section 7 Troubleshooting Guide Problem Possible Cause Solution Water downstream of the dryer Bypass valve is open Close bypass Drains in front of the dryer malfunctioning Check drain for proper coil operation and restrictions in valve. See drain cleaning instructions.
Page 21 Notes: - 21 -...
Page 22: Replacement Parts
RDS Series — 50-1000 SCFM Section 8 Replacement Part 50-75 SCFM AIR COOLED RDS50A-1 RDS50A-2 RDS75A-1 RDS75A-2 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 7009337 CAPACITOR,RUN 7009321 7009321 7009321 7009321 CAPACITOR,START 7009318 7009318 7009318 7009318 COIL,LIQ. INJECTION 7009328 7009336...
Page 23 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 50-75 SCFM AIR COOLED - 23 -...
Page 24 RDS Series — 50-1000 SCFM Section 8 Replacement Part 100-125 SCFM AIR COOLED RDS100A-1 RDS100A-2 RDS125A-1 RDS125A-2 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 7009337 CAPACITOR,RUN 7009321 7009321 7009322 7009321 CAPACITOR,START 7009318 7009318 7009318 7009318 COIL,LIQ. INJECTION 7009328 7009336...
Page 25 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 100-125 SCFM AIR COOLED - 25 -...
Page 26 RDS Series — 50-1000 SCFM Section 8 Replacement Part 150-200 SCFM AIR COOLED RDS150A-1 RDS150A-2 RDS200A-1 RDS200A-2 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 7009337 CAPACITOR,RUN 7009322 7009321 7009322 7009321 CAPACITOR,START 7009318 7009318 7009318 7009318 COIL,LIQ. INJECTION 7009335 7009336...
Page 27 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 150-200 SCFM AIR COOLED - 27 -...
Page 28 RDS Series — 50-1000 SCFM Section 8 Replacement Part 250 SCFM AIR COOLED RDS250A-3 RDS250A-4 RDS250A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7009238 7009239 7009239 CONDENSER 7009209 7009209 7009209 CONTACTOR...
Page 29 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 250 SCFM AIR COOLED - 29 -...
Page 30 RDS Series — 50-1000 SCFM Section 8 Replacement Part 300 SCFM AIR COOLED RDS300A-3 RDS300A-4 RDS300A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7009231 7009230 7009230 CONDENSER 7009203 7009203 7009203 CONTACTOR...
Page 31 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 300 SCFM AIR COOLED - 31 -...
Page 32 RDS Series — 50-1000 SCFM Section 8 Replacement Part 400 SCFM AIR COOLED RDS400A-3 RDS400A-4 RDS400A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7000490 7000491 7014110 CONDENSER 7009202 7009202 7009202 CONTACTOR...
Page 33 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 400 SCFM AIR COOLED - 33 -...
Page 34 RDS Series — 50-1000 SCFM Section 8 Replacement Part 500 SCFM AIR COOLED RDS500A-3 RDS500A-4 RDS500A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7000493 7000494 7000516 CONDENSER 7009202 7009202 7009202 CONTACTOR...
Page 35 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 500 SCFM AIR COOLED - 35 -...
Page 36 RDS Series — 50-1000 SCFM Section 8 Replacement Part 650 SCFM AIR COOLED RDS650A-3 RDS650A-4 RDS650A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7000467 7000468 7014111 CONDENSER 7009210 7009210 7009210 CONTACTOR...
Page 37 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 650 SCFM AIR COOLED - 37 -...
Page 38 RDS Series — 50-1000 SCFM Section 8 Replacement Part 800 SCFM AIR COOLED RDS800A-3 RDS800A-4 RDS800A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7011150 7011148 7011151 CONDENSER 7011147 7011147 7011147 CONTACTOR...
Page 39 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 800 SCFM AIR COOLED - 39 -...
Page 40 RDS Series — 50-1000 SCFM Section 8 Replacement Part 1000 SCFM AIR COOLED RDS1000A-3 RDS1000A-4 RDS1000A-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7011150 7011149 7011152 CONDENSER 7011147 7011147 7011147 CONTACTOR...
Page 41 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 1000 SCFM AIR COOLED - 41 -...
Page 42: Water Cooled
RDS Series — 50-1000 SCFM Section 8 Replacement Part 150-200 SCFM WATER COOLED RDS150W-1 RDS150W-2 RDS200W-1 RDS200W-2 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 7009337 CAPACITOR,RUN 7009322 7009321 7009322 7009321 CAPACITOR,START 7009318 7009318 7009318 7009318 COIL,LIQ. INJECTION 7009328 7009336...
Page 43 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 150-200 SCFM WATER COOLED - 43 -...
Page 44 RDS Series — 50-1000 SCFM Section 8 Replacement Part 250 SCFM WATER COOLED RDS250W -3 RDS250W -4 RDS250W -5 ITEM DESCRIPTIO N BO DY,LIQ . INJECTIO N VALVE 7009337 7009337 7009337 CAPACITO R,RUN CAPACITO R,START CO IL,LIQ . INJECTIO N...
Page 45 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 250 SCFM WATER COOLED - 45 -...
Page 46 RDS Series — 50-1000 SCFM Section 8 Replacement Part 300 SCFM WATER COOLED RDS300W -3 RDS300W -4 RDS300W -5 ITEM DESCRIPTIO N BO DY,LIQ . INJECTIO N V ALVE 7009337 7009337 7009337 CAPACITO R,RUN CAPACITO R,START CO IL,LIQ . INJECTIO N...
Page 47 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 300 SCFM WATER COOLED - 47 -...
Page 48 RDS Series — 50-1000 SCFM Section 8 Replacement Part 400 SCFM WATER COOLED RDS400W -3 RDS400W -4 RDS400W -5 ITEM DESCRIPTIO N B ODY,LIQ . INJE CTIO N V ALV E 7009337 7009337 7009337 CA PACITOR,RUN CA PACITOR,START CO IL,LIQ . INJECTION...
Page 49 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 400 SCFM WATER COOLED - 49 -...
Page 50 RDS Series — 50-1000 SCFM Section 8 Replacement Part 500 SCFM WATER COOLED RDS500W -3 RDS500W -4 RDS500W -5 ITEM DESCRIPTIO N BO DY,LIQ . INJECTIO N VALVE 7009337 7009337 7009337 CAPACITO R,RUN CAPACITO R,START CO IL,LIQ . INJECTIO N...
Page 51 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 500 SCFM WATER COOLED - 51 -...
Page 52 RDS Series — 50-1000 SCFM Section 8 Replacement Part 650 SCFM WATER COOLED RDS650W -3 RDS650W-4 RDS650W -5 ITEM DESCRIPTIO N BO DY,LIQ . INJECTIO N VALVE 7009337 7009337 7009337 CAPACITO R,RUN CAPACITO R,START CO IL,LIQ . INJECTIO N 7009336...
Page 53 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 650 SCFM WATER COOLED - 53 -...
Page 54 RDS Series — 50-1000 SCFM Section 8 Replacement Part 800 SCFM WATER COOLED RDS800W-3 RDS800W-4 RDS800W -5 ITEM DESCRIPTIO N BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7011150 7011148 7011151 CONDENSER 7011147 7011147...
Page 55 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 800 SCFM WATER COOLED - 55 -...
Page 56 RDS Series — 50-1000 SCFM Section 8 Replacement Part 1000 SCFM WATER COOLED RDS1000W-3 RDS1000W-4 RDS1000W-5 ITEM DESCRIPTION BODY,LIQ. INJECTION VALVE 7009337 7009337 7009337 CAPACITOR,RUN CAPACITOR,START COIL,LIQ. INJECTION 7009336 7009328 7009328 COMPRESSOR 7011150 7011149 7011152 CONDENSER 7011147 7011147 7011147 CONTACTOR...
Page 57 RDS Series — 50-1000 SCFM Section 8 Replacement Part Illustration 1000 SCFM WATER COOLED - 57 -...
Page 58: Air Cooled
RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 50-200 SCFM - 115/1/60 -230/1/60 - 58 -...
Page 59 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 250-500 SCFM - 230/3/60 - 59 -...
Page 60 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 250-500 SCFM - 460/3/60 - 60 -...
Page 61 Section 9 RDS Series — 50-1000 SCFM Wiring Diagrams Air-Cooled & Water-Cooled 250-300 SCFM - 575/3/60 - 61 -...
Page 62 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 400-500 SCFM - 460/3/60 - 62 -...
Page 63 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 650 SCFM - 230/3/60 - 63 -...
Page 64 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 650 SCFM - 460/3/60 & 575/3/60 - 64 -...
Page 65 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 800-1000 SCFM -230/3/60 - 65 -...
Page 66 RDS Series — 50-1000 SCFM Section 9 Wiring Diagrams Air-Cooled & Water-Cooled 800-1000 SCFM - 460/3/60 & 575/3/60 - 66 -...
Page 67: Warranty/Claims
Gardner Denver’s installation date. established warranty claim procedure for Compressed Air Treatment products. Gardner Denver will not be : In addition to the above stated warranty, both air to held liable for business interruptions, loss of profits,...
Page 68 Description of problem or complaint with as much detail as possible. Not Covered Gardner Denver dryer service will ask for a purchase order at this time. The P.O. will be used in the event that parts or labor are non-warranty. If a warranty...
Page 69 NOTES: - 69 -...
Page 70: Claim Form
Section 10 RDS Series — 50-1000 SCFM Section 10 Refrigerated Dryer Warranty Fill in information and fax to (303) 783-2333 Important Numbers Warranty Unit Model Number: Unit Serial Number: Installation Date: Distributor P.O. Number: (Initiates service call) Fax Number where warranty claim...

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