Johnson Controls York DMS Saber Series Installation, Operation & Maintenance Manual

Air cooled packaged air conditioners 30 to 50 tr

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Installation, Operation and Maintenance Manual : 036-1011(0806)

Page 27

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Page 1 NOTES .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Installation, Operation and Maintenance Manual : 036-1011(0806) Page 27...
Page 2 60 Hz Installation, Operation & Maintenance Manual IOM # 036-1011(0806)
Page 3: Table Of Contents
TABLE OF CONTENTS Belt drive blower ............21 TROUBLE SHOOTING GENERAL Cooling trouble shooting guide ........21 Safety considerations ..........3 Unit flash codes ............25 Inspection ..............3 Renewal parts ............3 MAINTENANCE Product nomenclature ..........4 Every month .............. 26 Every three months INSTALLATION Every six months...
Page 4: Safety Considerations
GENERAL RENEWAL PARTS YORK Saber units are single package air conditioners Refer to York USER’S MAINTENANCE and SERVICE equipped with optional factory installed electric heaters and INFORMATION MANUAL. It is strongly suggested that only designed for outdoor installation on a rooftop or steel genuine YORK Spare Parts are used to ensure efficient structure.
Page 5: Product Nomenclature
NOMENCLATURE INSTALLATION LIMITATIONS These units must be installed in accordance with the Read these instructions before continuing this appliance applicable national and local safety codes. (Refer to Unit installation. This is an outdoor combination heating and Application Data table). cooling unit. The installer must assure that these instructions are made available to the consumer and with instructions to If components are to be added to a unit to meet local codes, retain them for future reference.
Page 6: Location
LOCATION WARNING Use the following guidelines to select a suitable location for these units : BEFORE LIFTING A UNIT, MAKE SURE THAT ALL PANELS ARE IN PLACE AND THAT ITS WEIGHT IS DISTRIBUTED EQUALLY ON ALL CABLES SO IT WILL LIFT EVENLY. Unit are designed for outdoor installation only.
Page 7: Condensate Drain
CONDENSATE DRAIN Plumbing must conform to local codes. Use a sealing compound on male pipe threads. Install a condensate drain line from the one-inch FPT female connection on the unit to an open drain. NOTE : The condensate drain operates in a negative pressure cabinet.
Page 8: Compressors
COMPRESSORS the tabulated rating, with a short circuit capacity of 10K or more, for the unit. The switch must be separate from all other circuits. Wire entry at knockout openings require conduit Units are shipped with factory adjusted compressor fittings to comply with local codes. Refer to the Dimensions mountings and ready for operation.
Page 9: Phasing
FIGURE 6 : TYPICAL FIELD WIRING SCHEMATIC PHASING YORK Saber units are properly phased at the factory. Check for proper compressor rotation. If the blower or compressors CAUTION rotate in the wrong direction at start up, the electrical connection to the unit is mis-phased. Change the incoming line connection phasing to obtain proper rotation.
Page 10: Product Data
PRODUCT DATA TABLE 4 : PRODUCT DATA Installation, Operation and Maintenance Manual : 036-1011(0806) Page 9...
Page 11: Dimensions And Clearances
DIMENSIONS AND CLEARANCES Installation, Operation and Maintenance Manual : 036-1011(0806) Page 10...
Page 12: Drive And Pulley Data
DRIVE AND PULLEY DATA TABLE 5 : DRIVE AND PULLEY DATA ELECTRICAL DATA TABLE 6 : ELECTRICAL DATA Installation, Operation and Maintenance Manual : 036-1011(0806) Page 11...
Page 13: Electrical Data
ELECTRICAL DATA TABLE 6 : ELECTRICAL DATA Installation, Operation and Maintenance Manual : 036-1011(0806) Page 12...
Page 14: Fan Performance Data
Installation, Operation and Maintenance Manual : 036-1011(0806) Page 13...
Page 15: Additional Pressure Drops
ADDITIONAL PRESSURE DROPS The additional pressure losses should be calculated from the graph and ADDED along with the ESP (External Static Pressure) to calculate fan performance FIGURE 8 : PRESSURE DROPS DUE TO OPTIONS Installation, Operation and Maintenance Manual : 036-1011(0806) Page 14...
Page 16: Checking Supply Air Cfm
SAFETY CHECKING SUPPLY AIR CFM This section of the IOM covers Safety Aspects applicable to The RPM of the supply air blower will depend on the required CFM, the unit accessories or options and the static the York DMS Saber Roof Top Air Conditioners. Adherence to the instructions detailed hereunder, will ensure the safety resistances of both the supply and the return air duct of the operators, prevent damage to the equipment and...
Page 17: Use And Operation
OPERATION UNIT Warnings against coming into contact with electrical CONFORMANCE WITH GENERAL STANDARDS AND parts. PROVISIONS YORK DMS Saber Roof Top Packaged Air Conditioners are designed for and are able to cool, heat, filter air and operate in the fan mode. Any other use is considered not in conformity with general provisions.
Page 18: Applicable Standards Of Eec Machinery Directive
personnel of the commonly recognized dangers associated to ensure compliance with federal, state and local rules, with this equipment. addition following regulations, codes and standards. manufacturer's installation instructions, care must be taken Installation, Operation and Maintenance Manual : 036-1011(0806) Page 17...
Page 19: Operation
• INTERMITTENT BLOWER OPERATION With the room thermostat fan SOUND POWER RATINGS switch set to “AUTO” and the system switch set to either the A sound power level is a measure of the total noise radiated by the machine in all “AUTO”...
Page 20: Cooling Operation Errors
and, if the other compressor is idle, stop the condenser fans. If the compressors have satisfied their minimum If the call for cooling is still present at the conclusion of the times, compressors condenser fans ASCD, the UCB will reenergize the halted compressor. de-energized.
Page 21: Flash Codes
protector will open to shut down the compressor. The UCB inadequate supply air flow occurs, thus shutting down the incorporates features to minimize compressor wear and heater and energizing the blower. damage. RESET An anti short cycle delay (ASCD) is utilized to prevent Remove the call for cooling, by raising thermostat setting operation of a compressor too soon after its previous run.
Page 22: Shut Down
If the supply air blower motor does not energize when SHUT DOWN the fan switch is set to ON, check that line voltage is Set the thermostat to highest temperature setting. being supplied to the blower contactor, and that the contactor is pulled in.
Page 23 If compressor contactor 1 is not pulled in, check for 24 Compressor # 2 will not energize simultaneously with volts at the coil. If 24 volts are present and contactor is compressor #1 if a call for both stages of cooling is not pulled in, replace the contactor.
Page 24 If 24 volts is present at the UCB Y2 terminal and none of 7. If 24 volts is present at the UCB Y3 terminal, the the switches are open and the compressor is not locked compressor may be out due to an open high pressure out, the UCB may have the compressor in an ASCD.
Page 25 Cancel any calls for cooling and wait for the internal conditions. These options are not enabled by default. overload to reset. Test again when cool. Local distributors can test the UCB for this programming. If the compressor contactor 4 is not pulled in, check for 11.
Page 26: Unit Flash Codes
locked out the compressor for repeat trips. The UCB UNIT FLASH CODES should be flashing a code. If not, press and release the ALARMS button on the UCB. The UCB will flash the Various flash codes are utilized by the unit control board last five alarms on the LED.
Page 27: Maintenance
MAINTENANCE The Saber Packaged Air Conditioners are premium quality machines with very low maintenance requirements. Compressors used in Saber Packaged Units are of Scroll type and are charged with the correct amount of refrigerant and lubricating oil. Unless there is a leak in the system, no topping up is generally required.
Page 28 DMS Saber Roof Top Packaged Air Conditioners 30 to 50 TR JCI - York international provide comfortable environments wherever you Live, Work or Play Whenever you need air conditioning, the York name quality. York has a wide range of product choices for assures you of the highest standards of design, residential and light commercial applications.

This manual is also suitable for:

Dms 360 series Dms 420 series Dms 480 series Dms 600 series

Johnson Controls York DMS Saber Series Installation, Operation & Maintenance Manual

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