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CyberOne EC DX IOM Manual

NOTES:

SERVICE DISCONNECT SWITCH HANDLE IS MOUNTED TO FRONT DOOR OF CABINET.

CABINET DOOR AND RIGHT SIDE ACCESS PANEL REMOVED TO SHOW INTERNAL PARTS.

RIGHT SIDE

FRONT VIEW

HEAT

EXCHANGER

RECEIVER

(OPTIONAL)

CONDENSATE

PUMP

DRAIN PAN

COMPRESSOR

FILTERS

(CUT-AWAY TO

SHOW DETAIL)

T/H SENSOR (BEHIND

SMOKE DETECTOR)

HUMIDIFIER

FIRESTAT

(OPTIONAL)

SMOKE DETECTOR

(OPTIONAL)

COILS

DISCONNECT

SWITCH (NOTE 1)

AIR PROVING

SWITCHES

STEAM

DISTRIBUTOR

ELECTRIC BOX

HEATER

EC FAN

Figure 1. Typical Internal Layout- Downﬂow Conﬁguration

Model COS-024/060 Shown for Reference

Figure 2. Typical Internal Layout- Upﬂow Conﬁguration

Model COS-096/120 Shown for Reference

NOTES:

SERVICE DISCONNECT SWITCH HANDLE IS MOUNTED TO FRONT DOOR OF CABINET.

CABINET DOOR AND RIGHT SIDE ACCESS PANEL REMOVED TO SHOW INTERNAL PARTS.

RIGHT SIDE

FRONT VIEW

EC FAN

HEATER

RECEIVER

(OPTIONAL)

CONDENSATE

PUMP

DRAIN PAN

HUMIDIFIER CONTROL

BOARD ENCLOSURE

HEAT

EXCHANGER

HUMIDIFIER

COMPRESSOR

DISCONNECT

SWITCH (NOTE 1)

COILS

ELECTRIC BOX

AIR PROVING

SWITCHES

FIRESTAT

(OPTIONAL)

T/H SENSOR

STEAM

DISTRIBUTOR

FILTER

SMOKE DETECTOR

(OPTIONAL)

Содержание CyberOne EC DX

Страница 1: ...on Operation and Maintenance Manual Chilled Water Systems 12 35 kW Systems Vertical Floor Mounted 60 Hz Data CyberOne EC DX Installation Operation and Maintenance Manual Perimeter Precision Air Condit...

Страница 2: ...Systems Inc STULZ This document contains con dential and proprietary information of STULZ Air Technology Systems Inc Distributing or photocopying this document for external distribution is in direct...

Страница 3: ...ping 13 2 6 1 1 Self Contained Systems 13 2 6 1 2 Split Systems 13 2 6 1 3 Remote Air CooledCondensers AR 15 2 6 1 4 Remote AirCooled Condensing Units AHU 15 2 6 2 Water Glycol 15 2 6 3 Condensate Dra...

Страница 4: ...2 4 1 1 5 Heat Reheat 32 4 1 1 6 Humidi er 32 4 1 1 7 Condensate Pump 33 4 1 2 Condenser 33 4 2 Troubleshooting 33 4 3 Field Service 38 4 3 1 Leak Detection 38 4 3 2 Leak Repair 38 4 3 3 Refrigerant P...

Страница 5: ...U Air Handling Unit AR Air Cooled Remote Split G Glycol Cooled RCU O Outdoor Propeller Remote Condensing Unit RCU I Indoor Centrifugal Remote Condensing Unit S Single Pump AWS Alternate Water Source F...

Страница 6: ...con gurations The cooling capacity will depend on the unit size which can range from 24 000 to 120 000 BTU H CyberOne EC systems are designed to operate with R407C refrigerant Refer to the unit namep...

Страница 7: ...all jewelry watches rings etc Hazardous voltage will still be present inside the electric box at the motor start protectors and circuit breakers even with the unit turned off at the microprocessor co...

Страница 8: ...ased water conditioning additives in condensate drain pans Thiswill cause corrosion to occur on the coil ns 1 4 General Design The CyberOne EC DX system is housed in a steel frame type cabinet and is...

Страница 9: ...ELECTRIC BOX HEATER EC FAN Figure 1 Typical Internal Layout Down ow Con guration Model COS 024 060 Shown for Reference Figure 2 Typical Internal Layout Up ow Con guration Model COS 096 120 Shown for R...

Страница 10: ...icallystops andanalarm is signaled a Locked rotor1 b Loss of a phase1 c Low main supplyvoltage2 d Over heating of electronics2 e Over heating of motor2 1 Upon correction ofthese failure conditions the...

Страница 11: ...justable set point Thefree cooling controlvalve opens proportionallyto the demand for cooling basedonthereturnairtemperature sdeviationfromsetpoint Ifthereturnairtemperaturecontinuestorise thefree coo...

Страница 12: ...thecompressor turns onandthe AWS control valve closes shuttingoffthe owofchilledwater intothe AWScoolingcoil AWScoolingremains disabled andthe compressor runs until the cut out set point temperature...

Страница 13: ...ach side In order to have full service access to internal components no permanent obstructions should be placed in front of the unit See Figure 5 for the minimum recommended front installation clearan...

Страница 14: ...usedto minimizeleakage Outsideor freshairshouldbekepttoaminimum asitaddstothecooling heating dehumidification and humidifying loads while maintaining the requirement of the Indoor Air Quality IAQ stan...

Страница 15: ...orto match the blower discharge opening s and cut out the holes required for piping and wiring through the raised oor NOTE The equipment must be level to operate properly 2 3 2 Outdoor Equipment Remot...

Страница 16: ...unit the conditioned supply air has two methods of discharge Ducted or through a 2 or 3 way grilled plenum box see Figure 8 There are two basic air patterns Frontfreereturnandrearductedreturn If ductw...

Страница 17: ...r to the system drawings and supplemental controller manual sent in the data package with your unit 2 5 3 Remote Temperature Humidity Sensor The remote temperature humidity T H sensor must be locateds...

Страница 18: ...tach the plates to the A C cabinet Ensure the space between the plates and the pipes are adequately sealed to preventleakage 2 6 1 Refrigerant Piping 2 6 1 1 Self Contained Systems No refrigerant conn...

Страница 19: ...2 6 0 1 0 0 5 0 8 2 5 7 8 15 8 0 1 5 0 7 1 0 3 5 1 1 8 22 12 1 8 0 9 1 5 4 5 1 3 8 28 15 2 4 1 2 1 8 6 0 1 5 8 35 17 2 8 1 4 2 0 7 0 2 1 8 45 22 3 9 1 8 3 0 10 2 5 8 51 26 4 6 2 2 3 5 12 3 1 8 65 34 5...

Страница 20: ...micalCo Useonlyethyleneglycol with inhibitors for corrosionprotection WARNING Glycol is hazardous Consult the manufacturer s SDS for detailed safetyinformation CAUTIONS After the interconnecting pipin...

Страница 21: ...holes for connection of the field wiring conduits These pilot holes are located on the CyberOne EC unit based on the con guration Onan up ow con guration the pilot holes are located inthetop of thecab...

Страница 22: ...s within the range of 277V plus 5 the control transformers within the system must have the primary wire connected to its respective 240V tap instead of the 208Vtap Upon examination of the buck boost t...

Страница 23: ...th the shield being terminated at the unit electric box The number of conductors needed depends on which system controller is utilized For systems utilizing the model E controller three control conduc...

Страница 24: ...control wiring may be installed for the system controller to enable condenser operation only when the compressor is running You must remove the jumper from the remote condenser terminal board see the...

Страница 25: ...age electrical box Refer to the electrical drawing supplied with your unit for the number of eldwiresneededandappropriatewireterminationsrequired speci cally for yoursystem Figure 14 Interconnecting F...

Страница 26: ...Figure 15 Interconnecting Field Wiring Glycol Systems 21 COS 024 060 G U SHOWN FOR REFERENCE NOTES 1 PHANTOM WIRES NOT APPLICABLE FOR SINGLE PHASE POWER SUPPLIES 2 NUMBER OF CONDUCTORS VARY DEPENDING...

Страница 27: ...ing pressures vary depending on the type of refrigerant used in the unit Before charging check the unit nameplate to con rm the type of refrigerant to use Tables are provided in Section 2 8 8 showing...

Страница 28: ...r for HGRHand HGBP 3 2 lb Estimated Refrigerant Charge 22 226 lb 2 8 6 Preparing System for Charging 1 With all the system piping connections made perform a dry nitrogen leak detection test on the sys...

Страница 29: ...itial vacuum release the vacuum and pressurize the system with 2 3 lbs of drynitrogen Allowthesystemtostandfortwohourswith the dry nitrogen charge This gives time for the nitrogen moleculestodispersei...

Страница 30: ...erature reading near the feeler bulbfromthethermalexpansionvalvewiththetempera ture measuring device being well insulated The ideal superheattemperatureis12 15 F Maximumallowable superheat temperature...

Страница 31: ...Design Condensing Temp 95 F Ambient 125 105 140 Suction Pressure psig R407C 70 55 85 Fan Cycling Control Fan On psig R407C 320 240 340 Fan Speed Control psig R407C 320 Flooded HP Control Valve psig R...

Страница 32: ...or control is used to maintain head pressure The variable speed motor is located closest to the header end of the condenser The fan speed control is a continual modulation of the motor s speed The con...

Страница 33: ...h 10 VDC corresponding to the valve opening 100 Thesystemcontrollerisfactorysetforthecorrectcondensing pressure however it can be adjustedto increase ordecrease thecondensingpressure Adjustmentismadeb...

Страница 34: ...llen wrench turn clockwise to increase pressure or counterclockwise to lower pressure 3 2 1 1 Full Floating A full oating hot gas bypass system is provided for split AHU Remote Condensing Units The fu...

Страница 35: ...peration and Maintenance manual for the humidi er is provided with your unit under separate cover Refer to that manual for detailed information on the humidi er operation 7 Test dehumidi cation operat...

Страница 36: ...eavailableandthat allcylinderstobeusedaredesignatedfortherecovered refrigerant and labelled for that refrigerant i e special cylindersforthe recoveryofrefrigerant Cylinders must be complete with press...

Страница 37: ...a lowrefrigerant charge ora clogged lter drier Check for humidity in the refrigerant by viewing the color of the indicator in the center of the sight glass and comparing it to the color scale on the...

Страница 38: ...oil cleaner Check for bent or damaged coil ns and repair as necessary On outdoor units in winter do not permit snowto accumulate on or aroundthe condensing unit Check all refrigerant lines and capilla...

Страница 39: ...ator blower b Temperature setting too low Increase temperature setpoint 68 Fmin c Discharge air short cycling back to return Check discharge grilleorientation d Low refrigerant charge Find leak repair...

Страница 40: ...Condenser air intakeis blocked Remove debris and clean condenser c Overcharge ofrefrigerant Reclaim excess refrigerant fromsystem d Lowwater glycol owto water cooled condenser Reset determine cause an...

Страница 41: ...ck condenser for obstructions e Minimum off time hasnot expired Wait for time toexpire System Short of Capacity a Low refrigerant indicated by bubblesin sight glass b Expansion valve stuck or obstruct...

Страница 42: ...lement Humidi er Inoperative a Water supplyhas been turned offor not connected Connect and or turn on water supply Note See humidifier manual for additional help b Humidi er switch is in Off position...

Страница 43: ...are providedto protect the compressor fromfailing If a compressor failure has occurred determine whether it is an electrical or a mechanical failure An electrical failure will beindicatedbythedistinc...

Страница 44: ...one size larger than the normal selection size 6 Checktheexpansionvalve sightglassandothercontrols to see if cleaning or replacement isrequired 7 Evacuatethesystemaccordingtostandardprocedures Normall...

Страница 45: ...the A C unit On by pressing the Enterkey 8 Readjust the humidity to the desired setpoint If the humidi er is to be shut down for an extended period follow the steps of the Extended Shutdown procedure...

Страница 46: ...UPS groundthecustomerisresponsiblefortheshipping charges If you do not have established credit with STULZ you must give a freight carrier accountnumber A written or faxed purchase order is required o...

Страница 47: ...valve 9 Humidifier On Off Drain switch is in the on position 10 Filter s installed 11 Duct plenums sealed 12 Incoming line voltage matches equipment nominal nameplated rating tolerances 13 Main power...

Страница 48: ...ndensate pan safety switch operates freely Additional Check chilled water hot water circuits for air bleed as required Coils clean and clear of obstructions Humidifier cylinder and controls operate pr...

Страница 49: ...upport call 888 529 1266 or email stulztechnicalsupport stulz ats com Support is available 24 7 365 Provide the model number serial number and STULZ item number from the unit nameplate This will speed...

Страница 50: ...DF Downflow NFPA National Fire Protection Agency EC Electronically Commutated PH Phase DP Dewpoint PSI Pounds Per Square Inch DX Direct Expansion PSIG Pounds Per Square Inch Gauge ESD Electrostatic D...

Страница 51: ...Air Technology Systems Inc 1572 Tilco Drive Frederick MD 21704 301 620 2033 Fax 301 662 5487 info stulz ats com Technical Support 888 529 1266 www stulz usa com OCC0096A Feb 2020 STULZ Air Technology...

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