Stulz CyberRow DX CRS-042-W Installation, Operation And Maintenance Manual

Row-based precision air conditioners, 12 kw - 33 kw / 60 hz

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CyberRow DX

Installation, Operation and Maintenance Manual

Row-Based Precision Air Conditioners

12 kW - 33 kW / 60 Hz

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Page 1 CyberRow DX Installation, Operation and Maintenance Manual Row-Based Precision Air Conditioners 12 kW - 33 kW / 60 Hz...
Page 2 No part of this document may be photocopied, reproduced, or translated into another language for use by anyone other than the owner of the equipment for which this manual is written without the prior written consent of STULZ Air Technology Systems, Inc. (STULZ).
Page 3: Table Of Contents
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual TABLE OF CONTENTS Introduction .........1-1 2.9.2.1 Remote Water Detector ......2-11 2.9.2.2 Remote Temperature/Humidity Sensor ..2-11 General ............1-1 2.9.2.3 Remote On/Off .......... 2-11 Product Description ........1-1 2.9.3 Outdoor Equipment ........2-12 Product Warranty .........1-2...
Page 4 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual TABLE OF CONTENTS (Continued) Maintenance ........5-1 Appendix A - Forms Periodic General Maintenance ....5-1 Checklist for Completed Installation ......A-1 Troubleshooting ...........5-3 Periodic General Maintenance Checks Field Service ..........5-6 and Service Checklist ..........A-2 5.3.1...
Page 5: Introduction
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual INTRODUCTION The CyberRow system captures high temperature (hot aisle) discharge air from adjacent rack-based 1.1 General IT equipment and reintroduces it as conditioned air through the front of the unit (cold aisle).
Page 6: Product Warranty
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 1.3 Product Warranty See the contract.
Page 7 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual An extended warranty may be purchased on the unit’s compressor. The compressor warranty as stated below will be sent with your unit if the option is purchased and should be retained for future reference. You may...
Page 8: Safety
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 1.4 Safety WARNING 1.4.1 General Never operate the unit with any cover, guard, screen panel, etc. removed unless the instruc- STULZ Air Technology Systems, Inc. uses NOTES tions speciﬁ cally state otherwise, then do so along with CAUTION and WARNING symbols with extreme caution to avoid personal injury.
Page 9 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual CAUTION WARNING Do not use cleaning solvents near open ﬂ ame All personnel working on or near equipment or excessive heat. Wear eye protection when should be familiar with hazards associated blowing solvent from parts.
Page 10: General Design
1.5 General Design The STULZ CyberRow unit is housed in a steel frame type cabinet rated for indoor use. The exterior of the cabi- net is coated with a powder coat ﬁ nish to protect against corrosion. Removable access panels are located on the front and rear of the cabinet for easy access to all components.
Page 11: Electrical Compartment
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 1.5.1 Electrical Compartment 1.5.3.2 Electronic Hot Gas Bypass The electrical components are protected inside an Used for freeze protection and capacity control, an electric box located behind the rear access panel.
Page 12: Temperature/Humidity Sensors
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual During start up, the fans begin operating in stages 1.6 Optional Equipment with ﬁ ve second time delays. The middle fan starts 1.6.1 Remote Mounted Supply ﬁ rst, then the upper fan, then the lower fan. The Temperature/Humidity Sensor system controller monitors fan operation.
Page 13: Installation
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual INSTALLATION CAUTION 2.1 Receiving the Equipment Tipping Danger. Keep the shipping support brackets attached to the front and rear of the Your CyberRow precision A/C system has been tested cabinet after removing the CyberRow unit and inspected prior to shipment.
Page 14: Mounting/Placement
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual installation drawing provided with your unit for the pilot cool, conditioned air through the front grille to the hole locations. adjacent server modules on the cold aisle side of the row. It is recommended to position the unit to obtain 2.3.1...
Page 15: Air Distribution
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual The cabinet is equipped with an adjustable foot at each corner to raise the cabinet off the casters after Hot Aisle the unit is positioned in its operating location. The adjustable feet are also used for leveling and overall height correction.
Page 16: Remote Temperature/Humidity Sensor
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Cable type water detector- 3. Level the base. Mark and drill mounting holes through at least two of the available slotted holes. Lay the cable water detector ﬂ at across the sub-ﬂ oor where water could collect.
Page 17: Water-Water/Glycol Cooled Dx
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.7 Water- Water/Glycol Cooled DX (CRS-W & CRS-G Models) The system utilizes an external source of ﬂ uid to provide coolant to the condenser inside the A/C unit. No refrigeration connections are required for self-contained water or glycol cooled systems (see Figure 4).
Page 18 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual For pipe connection sizes, refer to the following table: NOTE Water/Glycol lines should be insulated to PIPE CONNECTION SIZES prevent condensation from forming on the pipes if ambient dew point temperatures are higher...
Page 19: Split Air Cooled Systems
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.8 Split Air Cooled Systems (CRS-A Models) Split air-cooled systems with a remote condenser will require ﬁ eld installed refrigerant piping. All split systems are shipped with a dry nitrogen charge of 100 psig. Release the pressure via an available stem valve or schrad- er valve prior to uncapping the pipes.
Page 20 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual debris to get inside refrigerant lines. Dry nitrogen PIPE CONNECTION SIZES should be ﬂ owing through the tubing while soldering at a rate of not less than 1-2 CFM (0.028-0.57 M 3/...
Page 21: Remote Air Cooled Condensers
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual lent feet. For longer rises, individual calculations EQUIVALENT LENGTH (FT.) OF STRAIGHT PIPE should be made. Sizes assume the use of single risers; double rises may be necessary. OD (In.) Globe Angle 90°...
Page 22: Utility Connections
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.9 Utility Connections The unit is provided with terminals for all required ﬁ eld-wiring. Refer to the electrical drawing supplied 2.9.1 Main Power with the unit for all power and control ﬁ eld-wiring. It is...
Page 23: Optional Equipment
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.9.1.1 Single-Phase Units 208/230V CAUTION The supply voltage for units that are designed for Do not connect any additional loads to the 208V operation must have a tolerance within -5% and +10%. If the measured supply voltage is 230V, system control transformers.
Page 24: Outdoor Equipment
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.9.3 Outdoor Equipment The following sections detail ﬁ eld power wiring required for a typical system. Additional conductors may be required depending on the options purchased with the equipment. Refer to the electrical drawing supplied with your unit for the appropriate ﬁ...
Page 25 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.9.3.3 Remote Condenser (CRS-A Models) For systems equipped with a remote condenser, the installer must provide main power wiring to the main power distribution block located within the remote condenser electric box. A separate equipment ground lug is provided within the electrical box for termination of the earth ground wire.
Page 26: System Charging Procedures
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.10 System Charging Procedures R410A operates at high pressures which must be considered when checking the operating 2.10.1 Water-Water/Glycol Cooled Systems temperatures/pressures while charging or troubleshooting the system. Tables are provided in No ﬁ...
Page 27 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Table3 EVACUATE THE SYSTEM Weight of R410A Refrigerant CAUTION (Lbs./100 Ft of type L tubing) A proper vacuum must be drawn on the Line Discharge refrigerant system to remove moisture prior...
Page 28 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual moisture is in the system that still needs to be WARNING boiled off. Proceed to step #5. If the pressure rises rapidly up to atmospheric pressure (more than 50 If refrigerant gas is released in an enclosed area, microns per minute) it indicates a leak that wasn’t...
Page 29 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4. Block off a portion of the intake air to the 2.10.2.4 -30°F Ambient Applications condenser until a constant discharge pressure NOTE can be obtained. This will lower the possibility of For units designed for -30°F operation, a...
Page 30: Refrigerant Characteristics
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 2.10.3 Refrigerant Characteristics 2.11 Settings and Adjustments 2.10.3.1 Pressure/Temperature Settings 2.11.1 Water-Water/Glycol Circuit The following table is provided to assist with the Condensing temperature is maintained by liquid normal settings of the system for R410A refrigerant.
Page 31: Hot Gas Bypass
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual compressor. As a standard, superheat is factory set 2.11.5 EC Fans at 12-15°F and should not need adjustment. The The speed of the EC fans are controlled via a 0 superheat temperature is monitored and controlled by to 10 VDC signal from the system controller.
Page 32: Start-Up/Commissioning
4. After “Unit On” appears, the fans begin operating in 5 second, time delayed stages (adjustable). The middle fan is turned on 1st, then the upper fan, then the lower fan. The STULZ logo in the display is replaced with a blower symbol.
Page 33: E² Controller
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.0 E² CONTROLLER General 4.1.1 Features The advanced microprocessor based, E 2 Series 4.1.1.1 Field Conﬁ gurable controller is a highly versatile and ﬂ exible A/C system The program for the E 2 Series controller is ﬁ eld controller.
Page 34: Figure 10 User Interface Display Panel
Illuminates yellow when unit is on own unique address. Returns to the previous menu level Multiple A/C units consisting of up to eight (8) STULZ Cancels a changed entry precision air conditioners equipped with like controllers may be controlled and monitored via the...
Page 35: Figure 11 Controller I/O Module
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.1.4 BMS Interface 4.1.3 Controller I/O Module series controller may incorporate a BMS network The controller is a microprocessor based I/O module card equipped with a communication port (Figure 12). mounted inside the A/C system electric box (see Figure This can be ﬁ...
Page 36: Navigating Controller Display Screens
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Navigating Controller Display Screens 4.2.1 Menu Selection When the desired menu is centered in the screen with Series controller provides ﬁ ve user selectable bold capital letters and an arrow symbol pointing...
Page 37 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.2.3 Display Variables advance the cursor through the various modiﬁ able ﬁ elds of the display screen eventually returning to the ﬁ rst ﬁ eld. The user interface display panel provides screens with...
Page 38: System Operation
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.2.6.1 Password Protected Screens 4.2.6.2 Wrong Password Upon ﬁ rst attempting to select a secure menu in a given session, the "Enter Password" screen will be Reset? No displayed. This screen displays the current security level Enter Password: authorized.
Page 39 ﬂ uid control valve (CRS-W & CRS-G units) and the fans are allowed to begin operating. 5. The STULZ logo in the display is replaced with a blower symbol. The fans begin operating in stages with ﬁ...
Page 40: Setpoint Adjustment
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.3.1 Setpoint Adjustment 6. From the Temperature setpoint screen, select the Humidity Setpoint screen by scrolling with the Up ( ) or 1. From the Main screen, access the Main Menu screen Down ( ) arrow key.
Page 41: Alarms
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.3.2 Alarms 4.3.2.3 Custom Alarms A custom (user conﬁ gured) alarm is activated upon As programmed into the system controller, an alarm detection of one or more programmed alarm conditions condition activates the summary alarm logic which as set by the operator in the Service>Options>Custom...
Page 42: Controller Operation
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.4 Controller Operation The E ² Series controller is designed to control an air conditioning system in a space or process application to temperature and humidity levels as deﬁ ned by the user. Conditioned air is supplied to the space as needed to maintain the temperature/humidity control setpoints.
Page 43 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual The E 2 controller continually analyzes the demand 4.4.2 Control Methods for cooling, humidifying and dehumidifying against System operation depends on the controller's programmed the control setpoints and determines the appropriate operating conﬁ...
Page 44: Figure 15 Dewpoint Control
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Actual Temp/RH (Dewpoint) Setpoint Cool Only- No Humidiﬁ cation Needed Psychrometric Chart Figure 15- Dewpoint Control 4.4.3 Operating Conﬁ gurations The operating conﬁ guration for the controller depends on Minimum what type of air conditioner is being controlled (i.e. AR,...
Page 45 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual The control output signal is matched to the valve. If the If one of the fans fails to operate, the controller alerts valve typically opens at 2.5 VDC, the control I/O module...
Page 46: Menu Screens
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.4.5 Remote On/Off 4.5 Menu Screens For Remote On/Off operation, terminal positions are 4.5.1 Main Menu provided to connect a remotely located, On/Off switching MAIN MENU control device. If the A/C unit is turned on and the...
Page 47: Information Menu Loop
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.5.2 Information Menu Loop MAIN MENU The Info menu screens may be accessed from the Main screen by simply Factory scrolling with the Up ( ) and Down ( ) arrow keys. The same screens may INFO also be viewed if you enter the Info menu by pressing the "Prg"...
Page 48 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Information Menu Screen Lock Feature (Continued from previous page) You may lock any of the status display screens, bypassing the display screen time-out function. This is sometimes useful to maintain visibility to a speciﬁ c screen when testing, making adjustments or troubleshooting the system.
Page 49 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Information Menu (Continued from previous page) EHGB Status 4.5.2.10 EHGB Status Pos: 50.0% Displays the current operating position of the electronic hot gas bypass valve. Temp: 30.0°F The current suction temperature appears below. The bar gauge next to the valve icon provides a visual representation of the output signal controlling the valve position.
Page 50: Alarm Log
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Alarm Log Menu 4.5.3 Alarm Log The application software supports two (2) types of MAIN MENU alarms, “Non-Critical” and “Critical”. Any alarm may be Info programmed to activate the “Custom” (user conﬁ gured) alarm relay contacts.
Page 51 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Alarm Log Menu 4.5.3.4 Alarm Screen Messages ALARM MESSAGE DESCRIPTION OF ALARM CONDITION High Temperature Air temperature is above user deﬁ ned alarm setpoint. Low Temperature Air temperature is below user deﬁ ned alarm setpoint.
Page 52: Control Menu Loop
Main cycle: Boot: 4.03 03/07/06 3.4 cycles/s 285ms Press ( ) Key Two Version screens are provided for information only. They show controller hardware and software details that are useful to STULZ Product Support if technical assistance is needed. 4-20...
Page 53 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Control Menu 4.5.4.1 Setpoint Screens Fan Control Fan links: None CONTROL Upper Fan Spd Ctrl: Version Var frm Avg Upper Fan Spd Ctrl: Var frm Avg Upper Fan Spd Ctrl: Var frm Avg...
Page 54 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Control Menu humidity drops to the High Humidity Alarm setpoint Humidity Alarm (70.0%) - the Offset (5.0%) Low alarm Enable:Yes Setpoint 30.% 70.0% - 5.0% = 65.0% STATUS________________ Hum: 45.6% Set:45.0% The High Humidity Alarm will cancel at 65%.
Page 55: Service Menu Loop
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu 4.5.5 Service Menu Loop 4.5.5.1 Humidity The cut-in/cut-out offsets for the Dehumidiﬁ cation modes MAIN MENU may be adjusted from the Service>Humid menu. Control SERVICE SERVICE Cool Factory HUMID...
Page 56 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu 4.5.5.3 Sensors 4.5.5.4 Blower SERVICE SERVICE Alarms Sensors SENSORS BLOWER Blower Options From the Service>Sensors menu you may access From the Service>Blower menu you may access screens multiple display screens to enter offsets for calibrating to view and adjust the blower speed parameters.
Page 57 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu fan speed is 90%, the fans will run at 60% during 4.5.5.5 Options Menu Loop dehumidiﬁ cation. SERVICE Blower 25%- Zone 75%- Zone Minimum Maximum OPTIONS 100% (Off) Digital In From the Service>Options menu you may press the...
Page 58 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu after turning the unit on with a remote on command. EXAMPLE 3: Humidity Offset Multiplier "Airﬂ ow delay"- Time delay for allowing the blowers If 1.3 is entered, the offset for humidity is multiplied by to reach adequate speed before the air proving sensor 1.3.
Page 59 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu 4.5.5.5.4 Custom Setup From the Service>Options>Custom Setup screen you may press the Enter Custom Setup key to access a menu loop to set up custom alarm features. Any controller Setup the alarm text, alarm or signal failure will activate the summary alarm output.
Page 60 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu Alarms 1 to 8 Alarms 9 to 16 Description mask Default Description mask Default Upper Fan alarm Filter alarm Lower fan alarm Fire/Smoke alarm Middle fan alarm Water detection alarm...
Page 61 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu 4.5.5.5.7 Work Group Screens only. It shows the state of each digital input as either Closed (+24 V) or Open (Gnd). The Service>Group display screens shown below only appear if two or more units are wired together as a group.
Page 62 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Service Menu 4.5.5.9 Save Conﬁ guration Set Passwords SERVICE BMS Comm Control: Service: SAVE CFG Factory The second Service>Save Cfg menu screen allows you to The default setpoints may be restored and passwords may set new passwords for entering the Control and Service be changed from the Service>Save Cfg menu.
Page 63: Communication With The Controller
In this mode, the Lead controller will rotate duty between in the ﬁ eld with assistance from STULZ Product Support. the grouped A/C units to promote equal run time and A unit may also be designated as "Out of Service".
Page 64: Confi Guring A Work Group
The rotation time period is typically 1 week, however it take the lead). In this case the message "No_Rot" may be set by the user via the Factory menu. Call STULZ appears after the duty assignment displayed in the main Product Support for assistance when accessing the screen.
Page 65 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual The Display Address Changed screen will appear indicating Display address the display address selected is not the same as the one saved changed previously and the new value will be saved to the permanent memory.
Page 66 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 7. The Priv/Shared column indicates the type of terminal. The workgroup is setup using private terminals. Do not change the value (“Pr”). Press the ( ) key to move to the last ﬁ eld 8.
Page 67 Press the Enter ( ) key twice and you'll be prompted to enter the MAIN MENU password for the Factory level (contact STULZ Product Support for Service the password). FACTORY Once the Factory level password is entered, press Enter ( ) to call up the menu screens.
Page 68 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Group Rotation Factory>Group>Group Rotation (Screen 2) Force Rotation Number of Days Hour of Day Cur lead 1 Rot Unit 0 Next lead 0 Value 0 From this screen you may set the schedule to rotate operation of the A/C units to promote equal run times.
Page 69 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Capacity Assist Assist Time 300s Factory>Group> Capacity Assist (Screen 3) Cooling Cut in 1.0° Cut out 0.0° Each A/C unit in the group may be assigned local cut-in and cut-out setpoints for it's capacity assist operation. The values entered are offsets which are applied to the control setpoints established at the lead controller.
Page 70 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Group Averaging Factory>Group>Group Averaging (Screen 5) Use unit sensors when in Standby or Assist for Group Averaging Temp/Hum Sensors Static Pr Sensors Display description Description Variables Default Temp/Hum Sensors Enter Yes for the unit to respond to it's local...
Page 71 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Group Alarms 17 to 24 Group Alarms 25 to 32 Description mask Default Description mask Default High temperature Upper temp sensor Low temperature Middle temp sensor High humidity Lower temp sensor...
Page 72 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Group Status Factory>Group>Group Status (Screen 8) Running Active Standby Assist Online Out of Service This screen provides an overview of the current duty status for all the A/C units combined in the group.
Page 73 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.6.2.7 Service>Options>Group Menu Screens Accessed in the Service menu, the Service>Options>Group Setup screens only appear if two or more units are wired together as a work group. 4.6.2.7.1 Group Setup 4.6.2.7.4 Group Sensors...
Page 74 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.6.2.8 Information Menu Group Menu Screens The following display screens are available in the Information menu loop (Section 4.5.2.8) if two or more units are wired together as a group. They display key operating parameters for grouped A/C units.
Page 75: Bms Communication
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.7 BMS Communication 4.7.1 Direct BMS Control The controller may be conﬁ gured to accept proportional When BMS communication is utilized, the controller must analog signals that mimics a sensor. The controller will act...
Page 76: Troubleshooting The Control I/O Module
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.8 Troubleshooting the Control I/O Module Signal LED's The E 2 control I/O module includes 3 signal LED's (red, yellow and green) that provide information on the operation of the control module and status of the connection to the pLAN. These signal LED's are positioned adjacent to the yellow, "Power On"...
Page 77: Bms Modbus Parameters
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.9 BMS Parameters, Version 1.2 Supported Speed Media Connection Notes Protocols BACnet over IP 10 Mbps 10BaseT RJ45 direct unit connection Uses BMS addresses BACnet over 10 Mbps 10BaseT RJ45 direct unit connection...
Page 78 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.9.2 Unsigned Values for HTTP, SNMP / Modbus Holding Registers / Analog Values for BACnet Modbus BACnet Description Default Direction Address Address Address 1001 Cooling analog output 1002 Middle Fan Speed analog output...
Page 79 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.9.3 Boolean Values for HTTP, SNMP / Modbus Coils / Binary Values for BACnet Modbus BACnet Description Default Direction Address Address Address Global alarm output System on status Airﬂ ow has been proven Call for cooling Call for humidiﬁ...
Page 80 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.9.5 Sensor Failure Packed Bit Variables Sensor Failures 1 Sensor Failures 2 Middle temperature Reserved Upper temperature Reserved Lower temperature Reserved Return temperature Reserved Return humidity Reserved Static air pressure Reserved...
Page 81 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 4.9.7 Digital Output Packed Bit Variables Digital Outputs 1 Digital Outputs 2 Global alarm Reserved Custom alarm 1 Reserved Master fan enable Reserved DX1 enable Reserved DX1 liquid line solenoid Reserved Humidiﬁ...
Page 82: Maintenance
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual MAINTENANCE 5.1.1 Filters The ﬁ lter is usually the most neglected item in an air 5.1 Periodic General Maintenance conditioning system. To maintain efﬁ cient operation, the ﬁ lter should be checked every 3 to 6 months and Systematic, periodic general maintenance of the cleaned or replaced as required.
Page 83 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 5.1.1.2 Cartridge Filters Replaceable cartridge ﬁ lters are held in place by an end cap in the bottom of the Rear Access rear access panel. Lay the access panel Panel down on a piece of cardboard and remove the four screws holding the end cap in place.
Page 84: Troubleshooting
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 5.2 Troubleshooting Turn off all power to the unit before conducting any troubleshooting procedures, unless the procedure speciﬁ cally requires the system to operate. For troubleshooting purposes, the system may be operated with the doors open by using a pair of channel lock pliers to turn the shaft of the main power disconnect switch to the “On”...
Page 85 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION Compressor Fails to Start c. Complete loss of refrigerant charge Locate and repair leak. Recharge system. (cont.) (low pressure safety switch tripped). d. Condenser pressure too high Check condenser for obstructions.
Page 86 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual SYMPTOM PROBABLE CAUSE RECOMMENDATION Condenser Pressure too a. Non-condensable gas or air in the Recover system, evacuate per Section High (CRS-A Units) system. 2.10.2.2, recharge. Replace drier/strainer. b. Condenser air intake is blocked.
Page 87: Field Service
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Field Service 5.3.2 DX System It may be necessary to perform repairs on the Repairs must be performed by a journeyman, refrigeration system. If ﬁ eld repairs are necessary, refrigeration mechanic, or air conditioning technician.
Page 88 STULZ CyberRow DX Series Installation, Operation & Maintenance Manual pungent odor once the system has been opened. CAUTION If a burnout has occurred, the oil will be black and acidic. A mechanical failure will have no burned odor PVE oil is used in systems with R410A refrigerant.
Page 89: System Repairs/Component Replacement
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual 8. Recharge the system through the access valve on the suction line ﬁ lter-drier. 9. Turn on power at the main power disconnect Inlet Ring switch and start the system. 10. A permanently installed suction line ﬁ lter-drier permits small-system cleanup to be completed in one service call.
Page 90: Product Support
UPS ground the customer is returned to STULZ within 30 days of the purchase date. responsible for the shipping charges. If you do not have Spare part sales over 30 days old will be considered established credit with STULZ you must give a freight ﬁ...
Page 91: Appendix A - Forms
CyberRow Series APPENDIX A - FORMS STULZ Air Technology Systems Inc. Frederick, Maryland USA 21704 Telephone: (301) 620-2033 Facsimile: (301) 620-1396 Checklist for Completed Installation   Proper clearances for service access have All wiring connections are tight. been maintained in front of the equipment.
Page 92: Periodic General Maintenance Checks
CyberRow Series Periodic General Maintenance Checks and Services Checklist Date: ____________________________ Prepared By: ___________________________ Model Number: ____________________________ Serial Number: _________________________ Item Number: ____________________________ Monthly Filters Blower Section Condensate Drain       Cleanliness Blower Turns Drain is Open ...
Page 93: Appendix B - Glossary
STULZ CyberRow DX Series Installation, Operation & Maintenance Manual Appendix B – Glossary Deﬁ nition of Terms and Acronyms STULZ - STULZ Air Technology Systems, Inc. MAX FUSE - Maximum Fuse BTU/Hr - British Thermal Units Per Hour MCA -...

This manual is also suitable for:

Cyberrow dx crs-042-g Cyberrow dx crs-084-w Cyberrow dx crs-084-g

Stulz CyberRow DX CRS-042-W Installation, Operation And Maintenance Manual

1 Introduction

2 Installation

3 Start-Up/Commissioning

4 E² Controller

5 Maintenance

6 Product Support

Appendix A - Forms

Appendix B - Glossary

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