Summary of Contents for SATS CyberTWO Series
- Page 1 CyberTWO Series Installation, Operation & Maintenance Manual Installation, Operation & Maintenance CyberTWO™ SERIES CyberTWO™ SERIES Dual Circuit - Vertical Floor Mounted Precision Air Conditioners (Revised 08/05)
- Page 2 CyberTWO Series Installation, Operation & Maintenance Manual MODEL NOMENCLATURE VFS-120-DG-FC-U = Downflow = Upflow AWS = Alternate Water Source OHS = Overhead System = Free Cooling VFS = Vertical Floor System FCS = Floor Console System AHU = Air Handling Unit...
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Page 3: Table Of Contents
CyberTWO Series Installation, Operation & Maintenance Manual TABLE OF CONTENTS Introduction ........1-1 2.7.4.2 Glycol Systems ........2-12 System Settings and Adjustments ... 2-13 General ............1-1 2.8.1 R-22 Refrigerant Charging Procedures ..2-13 Product Description ........1-1 2.8.2 R-407C Refrigerant Charging Procedures. 2-14 Product Warranty ........ - Page 4 CyberTWO Series Installation, Operation & Maintenance Manual TABLE OF CONTENTS (Continued) List of Figures Appendix A - Forms Figure 1. Installation Clearance ......1-2 Checklist for Completed Installation ......A-1 Figure 2. Typical Installation Downfl ow ....2-2 Periodic General Maintenance Checks and Service Checklist ......... A-2 Figure 3.
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Page 5: Introduction
72,000 to 312,000 BTU/Hr. CyberTWO systems are designed to operate SATS offers a two year st a ndard limited warranty as with either R22 or R407C refrigerant. Refer to the unit stated on the following p ages. Additionally an ex-... - Page 6 SATS’ obligation under this warranty is to repair or replace, at its option, any part or parts which are determined by SATS to be defective for a period of 12 months from the date of shipment when an accurately completed Factory Start-Up Form has been submitted to SATS, within 180 days from shipment.
- Page 7 SATS to be defective for a period of 60 months from the date of start-up. Start-up must be completed within the f rst 180 days from shipment.
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Page 8: Safety
CyberTWO Series Installation, Operation & Maintenance Manual Safety When working on electrical equipment, remove all jewelry, watches, rings, etc. 1.4.1 General Always disconnect the main power supply to the Stulz Air Technology Systems, Inc. uses NOTES equipment at the main power disconnect switch before along with CAUTION and WARNING symbols through- beginning work on the equipment. - Page 9 CyberTWO Series Installation, Operation & Maintenance Manual Exposure of refrigerant to an open fl ame or a CAUTION very hot surface will cause a chemical reaction that will form carbonyl chloride (hydrochloric/hy- When the air conditioner is in the cooling mode, drofl...
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Page 10: Installation
SATS ships all equipment FOB. the proper insulation rating is used based on the SATS can assist in the claim filing process with the design of the space, which was the basis for the freight carrier. Should any such damage be present, system selected. -
Page 11: Mounting/Placement
CyberTWO Series Installation, Operation & Maintenance Manual moving prior to installation. Units should always be 2.4.2 Outdoor Equipment stored indoors in a dry location prior to installation. Install the remote condenser in a secure location where the unit cannot be tampered with and the main... -
Page 12: Remote Temperature/Humidity Sensor
CyberTWO Series Installation, Operation & Maintenance Manual the control panel may be remote mounted. For 4. Place the base over the wires coming out of the mounting and wiring instructions, refer to the system wall and mount with screws provided. -
Page 13: Floor Stand
CyberTWO Series Installation, Operation & Maintenance Manual 2.4.3.4 Floor Stand Air Distribution Connection See Figure 4. Install the floor stand directly on the 2.5.1 Downflow Configuration Air Patterns sub-floor, ensuring the side with the "FRONT" label is In a downflow configured unit there are two basic air facing the same direction as the front of the A/C unit. -
Page 14: Upflow Configuration Air Patterns
CyberTWO Series Installation, Operation & Maintenance Manual RETURN AIR INLET RETURN AIR INLET SUPPLY SUPPLY AIR OUTLET AIR OUTLET TOP DUCTED RETURN TOP FREE RETURN Figure 5- Downflow Configuration Typical Air Patterns 2.5.2 Upflow Configuration Air outlet and the rear ducted return are provided with a... - Page 15 CyberTWO Series Installation, Operation & Maintenance Manual 2.6.1.2 Split Systems Silver solder containing a minimum of 15% silver is recommended. Dry nitrogen should be flowing through Split air-cooled systems with a remote condenser will the tubing while soldering at a rate of not less than 1-2 require field refrigeration piping.
- Page 16 CyberTWO Series Installation, Operation & Maintenance Manual Equivalent Length (ft) of Straight Pipe OD (In.) Globe Angle 90º 45º Line Size Valve Valve Elbow Elbow Line Branch All suction lines must be insulated to prevent conden- sation from forming on the pipes. Refer to provided pipe size charts for recommended pipe sizing.
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Page 17: Water/Glycol
CyberTWO Series Installation, Operation & Maintenance Manual pump capacity and may require a reducing fitting to Recommended Liquid Line Sizes match the connection size on the air conditioner . (For R22 or R407C Refrigerant) Glycol-cooled systems with low entering fluid tempera- Receiver to Evaporator (Equivalent Ft.)*... -
Page 18: Humidifier
CyberTWO Series Installation, Operation & Maintenance Manual OUTLET 1/2" OD INLET 7/8" OD SEE NOTE 1 SEE NOTE 2 2.00 NOTES: 1. MIMIMUM HEIGHT IN INCHES. 2. P-TRAP MUST BE LOCATED IN THE INLET SIDE OF PUMP WHEN FIELD INSTALLED. -
Page 19: Controls
CyberTWO Series Installation, Operation & Maintenance Manual It is important to verify that the main power supply coincides with the voltage, phase and frequency information specified on the system nameplate. The supply voltage measured at the unit must be within ±10% of the voltage specified on the system name-... -
Page 20: Optional Equipment
CyberTWO Series Installation, Operation & Maintenance Manual 2.7.3 Optional Equipment 2.7.4 Interconnecting Field Wiring NOTE The following system interconnecting field wiring sections detail the number of conductors required for All wiring must be provided in accordance with a typical system. Additional control conductors may local and national electrical code requirements. -
Page 21: Air-Cooled Split Systems Remote Condenser
CyberTWO Series Installation, Operation & Maintenance Manual 2.7.4.1 Air-Cooled Split System Remote wiring to the main power distribution block located Condenser within the remote condenser control box. A separate equipment ground lug is provided within the electrical See Figure 10. Systems equipped with a remote box for termination of the earth ground wire. -
Page 22: System Settings And Adjustments
CyberTWO Series Installation, Operation & Maintenance Manual 1. Bleed air from hoses and "break" the system System Settings and Adjustments vacuum by supplying R22 vapor. Supply R22 2.8.1 R22 Refrigerant Charging Procedures vapor until the pressure is raised to about 50 psig. -
Page 23: R407C Refrigerant Charging Procedures
CyberTWO Series Installation, Operation & Maintenance Manual 5. Once the discharge pressure has stabilized for 5 to 7. If the unit has a hot gas reheat option, the previous 10 minutes, additional refrigerant R22 vapor must steps are still followed except the hot gas reheat be added to the suction port until the "float ball"... -
Page 24: Low/High Pressure Limit Switch
CyberTWO Series Installation, Operation & Maintenance Manual Familiarize yourself with the charging procedures 8. While monitoring the sight glass, take a sub- discussed in section 2.8.1 of this manual. Instead of cooling temperature reading on the output side of adding R22 vapor to the suction port as described the condenser. -
Page 25: Water/Glycol-Cooled Systems
CyberTWO Series Installation, Operation & Maintenance Manual Differential is non-adjustable and set at 70 psig. Set 2.8.4.2 Water/Glycol-Cooled Systems point range is 170 to 375 psig. 2.8.4.2.1 Head Pressure Regulating Valve 2.8.4.1.2 Condenser Fan Speed In a water/glycol condenser , condensing temperature... -
Page 26: Blower
CyberTWO Series Installation, Operation & Maintenance Manual It is recommended that if the humidifier capacity pot Replace the sheave key and tighten set screw . requires adjustment, the adjustment is made in small Proper belt tension is achieved when the belt has a increments and verified. -
Page 27: Hot Gas Reheat (Optional)
CyberTWO Series Installation, Operation & Maintenance Manual 2.9.2 Saturated Refrigerant Pressure T ables The snap acting hot gas bypass system also provides freeze protection for the evaporator coil by limiting the The following refrigerant vapor pressure tables are minimum refrigerant pressure, thereby preventing the provided for reference. -
Page 28: Start-Up/Commissioning
It should requirements. be completed during st a rt-up and sent to SATS. This checklist should be used as a guideline for 6. Test dehumidification operation by creating a items that need to be confirmed during start-up. -
Page 29: Maintenance
CyberTWO Series Installation, Operation & Maintenance Manual MAINTENANCE journeyman or a qualified refrigeration technician only . Always recover all refrigerant prior to any system Periodic General Maintenance repairs, failure to do so may result in system over Systematic, periodic general maintenance of the pressurization and rupture. -
Page 30: Condenser
CyberTWO Series Installation, Operation & Maintenance Manual for each location, based upon periodic examination of damaged coil fins and rep air as necessary . On outdoor the humidifier. units in winter, do not permit snow to accumulate on or around the condenser. Check all refrigerant lines and 4.1.1.7 Condensate Pump... - Page 31 CyberTWO Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION E 4-3)vaporator Coil Ices b. Temperature setting too low Increase temperature setpoint. (Cont.) (68°F min.). c. Discharge air short cycling back Check discharge grille orientation. to return. d. Low refrigerant charge.
- Page 32 CyberTWO Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION Condenser Pressure 3. Air in system - bleed system. Too High (Cont.) 4. Check all strainers and clean if needed. i. Water/glycol solution not mixed Remove solution and premix.
- Page 33 CyberTWO Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION System Short of Capacity b. Expansion valve stuck or Remove valve and clear obstruction or (Cont.) obstructed (short cycling or replace valve. continuous running). c. Clogged drier/strainer (feels cold).
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Page 34: Field Service
CyberTWO Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION Humidifier Inoperative a. Water supply has been turned Connect and/or turn on water supply . Note: See Humidifier off or not connected. Manual for Additional Help. b. Electrical connections are loose. - Page 35 CyberTWO Series Installation, Operation & Maintenance Manual burnout has occurred, the oil will be black and acidic. If there is no acid in the oil, there has been a mechani- A mechanical failure will have no burned odor and the cal failure.
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Page 36: Humidifier Cylinder Replacement
CyberTWO Series Installation, Operation & Maintenance Manual 4.3.2.1.2 Burn-Out/Acidic Cleanup Procedure 4.3.2.2 Humidifier Cylinder Replacement NOTE After an extended period of operation a red light will illuminate on the humidifier cabinet indicating that the Cleaning operations must be performed by a jour-... -
Page 37: Filter Replacement
CyberTWO Series Installation, Operation & Maintenance Manual 10. Ensure the plugs are secured on the pins. If the fitting plugs are loose, they may be temporarily squeezed together, however, the plugs must be replaced since a loose plug could generate enough heat to melt and destroy the plug. -
Page 38: Product Support Group
A written (or faxed) purchase order is required on warranty parts and must be received prior to 12:00 SATS provides to it s customers a Product Support p.m. for same day shipment. The purchase order must Group (PSG) which not only provides technical... -
Page 39: Appendix A - Forms
CyberTWO Series Installation, Operation & Maintenance Manual Frederick, Maryland USA 21704 CyberAir Series Telephone: (301) 620-2033 Facsimile: (301) 620-1396 APPENDIX A - FORMS Stulz Air Technology Systems Inc. Frederick, Maryland USA 21704 Telephone: (301) 620-2033 Facsimile: (301) 620-1396 Checklist for Completed Installation ❏... - Page 40 CyberTWO Series Installation, Operation & Maintenance Manual NOTES (Sept, 2010)
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Page 41: Periodic General Maintenance Checks And Service Checklist
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Signature:________________________________ *** If factory assistance is required for any reason, provide the model number , serial number, and SATS item number found on the unit nameplate. This will speed the process and ensure accuracy of information. ***... - Page 42 CyberTWO Series Installation, Operation & Maintenance Manual NOTES (Sept, 2010)
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Page 43: Appendix B- Glossary
CyberTWO Series Installation, Operation & Maintenance Manual Appendix B- Glossary Definition of Terms and Acronyms SATS - Stulz Air Technology Systems, Inc. MAX FUSE - Maximum Fuse BTU/Hr - British Thermal Units Per Hour MCA - Minimum Circuit Ampacity CFM -... - Page 44 CyberTWO Series Installation, Operation & Maintenance Manual Globally close to you. Stulz-ATS, located in Frederick, MD USA, is part of The STULZ Group with headquarters in Hamburg, Germany and production facilities world wide. Our network of manufacturer ’ s representatives and sales partners span the globe, providing innovative solutions to your unique environmental control needs.
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