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York YSCD Manual

Versecon air conditioning unit
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VERSECON AIR CONDITIONING UNIT
New Release)
INSTALLATION, OPERATION & MAIN TE NANCE
Form 145.05-NOM2 (807)
MODEL YSCD & YSCU
LD13012

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  • Page 1 VERSECON AIR CONDITIONING UNIT New Release) INSTALLATION, OPERATION & MAIN TE NANCE Form 145.05-NOM2 (807) MODEL YSCD & YSCU LD13012...
  • Page 2 NOT be installed inside the mi cro pan el. NO external wiring is al lowed to be run through the micro panel. All wir ing must be in ac cor dance with YORK’s pub lished spec i fi ca tions and must be per formed ONLY by qual i fi ed YORK personnel. YORK will not be re spon si ble for dam ag es/problems re sult ing from im prop er con nec tions to the con trols or ap pli ca tion of im prop er con trol sig nals.

  • Page 3: Changeability Of This Document

    While equip ment in question. If there is any question in YORK makes no com mit ment to update or provide the mind of operating/service personnel as to the current in for ma tion au to mat i cal ly to the manual owner,...

  • Page 4: Table Of Contents

    FORM 145.05-NOM2 (807) TABLE OF CONTENTS CHANGEABILITY OF THIS DOCUMENT ...................3 TABLE OF CONTENTS ........................4 LIST OF TABLES ..........................8 LIST OF FIGURES ..........................9 SECTION 1 – INTRODUCTION ......................11 ABOUT THIS MANUAL ..........................11 DESCRIPTION OF UNIT ..........................11 NOMENCLATURE ............................11 SECTION 2 – INSTALLATION ......................13 APPROVALS ...............................13 LIMITATIONS ...............................13 UNIT INSPECTION ............................13...
  • Page 5 FORM 145.05-NOM2 (807) TABLE OF CONTENTS (CONT.) STATIC PRESSURE TRANSDUCER INSTALLATION (FLEXSYS UNITS ONLY) ........29 Installation Instructions ........................29 RETURN, OUTDOOR, SUPPLY AIR, AND MIXED AIR SENSORS ............29 Return Air Sensor ..........................29 Supply Air Sensor ..........................29 Mixed Air Sensor ..........................29 Outdoor Air Sensor ..........................29 STEAM HEAT ..............................30 Specifi...
  • Page 6 FORM 145.05-NOM2 (807) TABLE OF CONTENTS (CONT.) SECTION 5 – SEQUENCE OF OPERATION ..................39 ON / OFF ..............................39 SUPPLY FAN OPERATION .........................39 Constant Volume Fan Operation ......................39 VAV Fan Operation ..........................40 Communicated VFD Speed Input .......................40 FLEXSYS DEW POINT CONTROL ......................40 Sequence of Operation ........................41 ECONOMIZER OPERATION ........................41 Sequence of Operation ........................41...
  • Page 7 FORM 145.05-NOM2 (807) TABLE OF CONTENTS (CONT.) SETPOINTS ..............................50 FORCED OUTPUTS ............................52 DAILY SCHEDULE ............................52 SETTING DATE AND TIME .........................53 HOLIDAY SCHEDULE ..........................56 OVERRIDE SCHEDULE ..........................56 COMMUNICATIONS ...........................57 Communication Wiring ........................57 Network Baud Rate ..........................57 Device Object Instance (DE) .......................58 SECTION 7 –...

  • Page 8: List Of Tables

    FORM 145.05-NOM2 (807) LIST OF TABLES TABLE 1 – ACRONYM CHART ......................11 TABLE 2 – VOLTAGE LIMITATIONS ....................13 TABLE 3 – OPERATING LIMITATIONS ....................13 TABLE 4 – ACCESS REQUIREMENTS ....................14 TABLE 5 – WEIGHTS ........................15 TABLE 6 – DATA TABLE ........................19 TABLE 7 –...

  • Page 9: List Of Figures

    FORM 145.05-NOM2 (807) LIST OF FIGURES FIG. 1 – RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE ..........14 FIG. 2 – SHIPPING RESTRAINT LOCATIONS ..................18 FIG. 3 – SHEAVE ALIGNMENT ........................34 FIG. 4 – BELT TENSIONING GAUGE ......................35 FIG. 5 – KEYPAD / DISPLAY ........................47 FIG.
  • Page 10 FORM 145.05-NOM2 (807) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 11: Section 1 - Introduction

    S - Self-contained Supply Fan Relay Y - York Toggle Switch YSWU039 - YORK Versacon Water Cooled, Upflow, 39 Nominal Tons Transformer Variable Frequency Drive YSWU - YORK Floor X Floor, Water Cooled, Upflow YSAU - YORK Floor X Floor, Air Cooled, Upflow...
  • Page 12 FORM 145.05-NOM2 (807) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 13: Section 2 - Installation

    230-3-60 480-3-60 To ensure warranty coverage, this 575-3-60 equipment must be commissioned and serviced by an authorized YORK TABLE 3 – OPERATING LIMITATIONS service mechanic or a qualifi ed ser- MINIMUM MAXIMUM vice person experienced in packaged ENTERING AIR COIL - DRY 68.0°...

  • Page 14: Location And Clearances

    Installation FORM 145.05-NOM2 (807) LOCATION AND CLEARANCES TABLE 4 – ACCESS REQUIREMENTS The following guidelines should be used to select a AREA DISTANCE COMPONENT ACCESSED suitable location for the unit installation: MOST ELECTRICAL AND POW- ER COMPONENTS, VFD, FAN • The unit is designed for indoor installation only BELT ADJUSTMENTS, GREAS- UNIT FRONT...

  • Page 15: Table 5 - Weights

    FORM 145.05-NOM2 (807) TABLE 5 – WEIGHTS UNIT WEIGHTS COOLING COIL SECTION CABINET 1135 1140 CHILLED WATER COIL (DRY WEIGHT) 2 ROW COIL 3 ROW COIL 4 ROW COIL 1,026 6 ROW COIL 1,022 1,077 1,240 1,351 1,488 WATER WEIGHT 2 ROW COIL 3 ROW COIL 4 ROW COIL...
  • Page 16 Installation FORM 145.05-NOM2 (807) TABLE 5 – WEIGHTS (CONT.) UNIT WEIGHTS VARIABLE FREQUENCY DRIVE DISCHARGE PLENUM FACTORY 1,073 1,073 INSTALLED Units are provided with lifting lugs for rigging with a Determine the approximate center of gravity for lifting crane. If the units are lifted by crane, protection against safety before lifting the unit.

  • Page 17: Factory-Supplied Plenum

    FORM 145.05-NOM2 (807) for transporting the unit. Furniture dollies can be placed VIBRATION ISOLATORS at both ends of the chassis or at one end, and a Johnson Each Versecon unit includes 1-inch high vibration bar used at the other end for maneuvering. isolation pads composed of 1/2 inch thick cork sandwiched between ¼...

  • Page 18: Remove Shipping Restraints

    Installation FORM 145.05-NOM2 (807) REMOVE SHIPPING RESTRAINTS Mechanical restraints are used to secure the spring mounted supply fan during shipment (see Figure 2). Restraints and shipping blocks must be removed after unit has been set in its fi nal location. TIE DOWN BOLTS TYP FOUR PLACES DETAIL A...

  • Page 19: Table 6 - Data Table

    FORM 145.05-NOM2 (807) PHYSICAL & ELECTRICAL DATA TABLE 6 – DATA TABLE DATA Min. capacity (tons) Capacity Range Max. capacity (tons) Min. VAV design CFM 3,300 4,400 5,600 6,700 8,700 10,700 12,700 Airfl ow Range Max.VAV design & operating CFM 5,000 6,700 8,400...

  • Page 20: Table 7 - Chilled Water Coil Performance

    Installation FORM 145.05-NOM2 (807) TABLE 6 – DATA TABLE (CONTINUED) DATA Min. capacity (tons) Capacity Range Max. capacity (tons) Min. VAV design CFM 14,000 14,700 16,000 19,100 21,000 24,000 Airfl ow Range Max.VAV design & operating CFM 21,000 22,000 24,000 28,700 31,500 36,000...
  • Page 21 Water Pressure Drop 079 Chilled Water 079 - 2 Row 079 - 3 Row Water Flow - GPM LD13006...
  • Page 22 Installation FORM 145.05-NOM2 (807) DIMENSIONS AND WEIGHTS UNIT DIMENSIONS 012, 016, 021, 025 & 032 Due to the dedication of continuous product improvement and enhancements, the information/dimensons provided are subject to change without notice. LEFT BACK FILTER SECTION 2" FRONT COIL RIGHT SECTION...
  • Page 23 FORM 145.05-NOM2 (807) UNIT DIMENSIONS 039 TO 090 Due to the dedication of continuous product improvement and enhancements, the information/dimensons provided are subject to change without notice. BACK LEFT FILTER SECTION 2" COIL FRONT RIGHT SECTION SECTION VARIABLE SUPPLY AIR FREQUENCY DRIVE 5-1/8"...

  • Page 24: Electrical Data

    Installation FORM 145.05-NOM2 (807) ELECTRICAL DATA For units with cooling capability (all concurrent loads) Field Power Wiring with or without hot water or steam heat: Wiring must comply with all applicable codes and ordinances. MCA = 1.25 (largest motor RLA or FLA) + other loads + 2 amps.

  • Page 25: Field Control Wiring

    FORM 145.05-NOM2 (807) For unit in the cooling mode: For units in the heating mode: MOP = 2.25 (largest motor RLA or FLA) + other With Electric Heater KW 50 KW or less: loads + 2 amps. MOP = 2.25(electric heat FLA + supply fan motor amps) + 2 amps.

  • Page 26: Fan Start

    Installation FORM 145.05-NOM2 (807) Fan Start Return Air Contact DO-5 on the Unit Control Board closes Return air to the unit can be arranged in two ways. whenever the Unit Control initiates constant volume or VAV supply fan operation. This contact can be used Ducted Return to identify supply fan operation.

  • Page 27: Water Piping

    FORM 145.05-NOM2 (807) WATER PIPING Piping Connections 1. Units may be specifi ed with water and condensate General connections on either the left or right side of the unit. Piping must comply with local plumb- 2. Field piping connections are made to factory ing codes and ordinances.

  • Page 28: Static Pressure Transducer Installation (Vav Units Only)

    Installation FORM 145.05-NOM2 (807) STATIC PRESSURE TRANSDUCER INSTALLATION Mounting Instructions (VAV UNITS ONLY) 1. Drill a hole in the duct in a location per the above All units provided with a VFD include a factory guidelines and mount the fi eld supplied duct static mounted static pressure sensor (SPS1).

  • Page 29: Static Pressure Transducer Installation (Flexsys Units Only)

    FORM 145.05-NOM2 (807) To avoid confusion between “high” STATIC PRESSURE TRANSDUCER INSTALLATION (FLEXSYS UNITS ONLY) and “low” tubing, it is recommended All FlexSys units include a factory mounted static that two different tubing colors be used pressure sensor (SPS1). The unit can also have an and that this information be recorded, optional second static pressure sensor, (SPS2).

  • Page 30: Steam Heat

    Installation FORM 145.05-NOM2 (807) STEAM HEAT Hot Water Piping Specifi cation Piping must comply with local plumb- ing codes and ordinances. The steam coil is a factory installed option and is located on the return side of the unit. The wiring for the valve is connected to the Unit Control and routed to the steam heating coil;...

  • Page 31: Section 3 - Start-Up

    9. Verify the supply fan hold down bolts have been removed (refer to Figure 2). must be installed and serviced by an authorized YORK service mechanic or 10. Verify the supply fan rotates freely. Verify proper a qualifi ed service person experienced drive alignment of the supply fan.

  • Page 32: Unit Checks - Power Applied

    Startup FORM 145.05-NOM2 (807) UNIT CHECKS – POWER APPLIED INITIAL START-UP After all the other preceding checks have been completed 1. Apply 3-phase power to the unit and verify it falls the unit may be placed in operation. within the voltage range given in Table 2. 2.

  • Page 33: Section 4 - Maintenance

    Disconnect and lock-out power from pe ri od, YORK will not be liable for costs in curred to the unit anytime service is being per- return the unit to sat is fac to ry operation.

  • Page 34: Belt Tension

    Maintenance FORM 145.05-NOM2 (807) Belt Tension Sheave Alignment Adjust the belt tension if necessary. Required belt To check sheave alignment, a straight edge or a piece of tension data is listed in Table 11 below. Never use string can be used. If the sheaves are properly aligned, belt dressing on the belts.

  • Page 35: Belt Replacement

    FORM 145.05-NOM2 (807) An incorrectly aligned and tensioned belt can Supply Fan sub stan tial ly shorten belt life or overload blow er and In the unlikely event that the supply fan would need to motor bear ings, shortening their life ex pect an cy. A belt be replaced the following procedure would need to be tensioned too tightly can over load the motor electrical, followed:...

  • Page 36: Fan Motor

    Maintenance FORM 145.05-NOM2 (807) 10. Torque all hardware. Fan Shaft Bearings General – When removing and replacing the bearings, 11. Reassemble the Control / Blower section to the care should be taken to en sure that the area where the Compressor / Condenser section.

  • Page 37: Bearing Locking Devices

    The force required for the self- Various types of locking devices are used to secure alignment of the bear ings used in YORK man u fac tured bearing(s) to the fan shaft. Refer to the instructions units has been spec i fi...
  • Page 38 FORM 145.05-NOM2 (807) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 39: Section 5 - Sequence Of Operation

    FORM 145.05-NOM2 (807) SECTION 5 – SEQUENCE OF OPERATION ON / OFF “Num Sen” – The control has the capability to use one or two duct static sensors. If a single sensor is used this The unit can be switched into the “ON” mode by one value would be set to 1.

  • Page 40: Vav Fan Operation

    Sequence of Operation FORM 145.05-NOM2 (807) The third position is “VFD”. In this mode, the supply VAV Fan Operation fan motor can be operated through the VFD keypad. Two minutes after the unit is placed in the “ON MODE” the control will close a contact at DO-2 terminals 3 and When the unit is placed in the “VFD”...

  • Page 41: Sequence Of Operation

    FORM 145.05-NOM2 (807) “AC-S/A DEW MAX” – This establishes the maximum “ECON –S/A TMP EN” – When the outdoor air allowable derived Dew Point Control set point. The economizer is selected, the type of control, supply air or default value is 60.0° F. return air must be selected.

  • Page 42: Cooling Operation

    Sequence of Operation FORM 145.05-NOM2 (807) If Supply Air Temperature Control and Dew Point Sequence of Operation Control are selected, it will pick the higher of the two Supply Air Temperature Control outputs to control the economizer water valve. The cooling will be enabled when the supply air temperature is 5.0°...

  • Page 43: Coil Leaving Temperature Control (Flexsys Units)

    FORM 145.05-NOM2 (807) The control also monitors the pressure drop across Coil Leaving Temperature Control (FlexSys Units) the evaporator coil. This is done to verify that there On FlexSys units the control will compare the supply is always an adequate amount of return air across the air leaving the evaporator coil and compare it to 40.0°...

  • Page 44: Sequence Of Operation

    Sequence of Operation FORM 145.05-NOM2 (807) When both Supply Air and Return Air Control are Sequence of Operation enabled, the Unit Control will control the heat operation There is a one minute delay from the time the air to the lower of the two variable percentage outputs. proving switch closes until the heating sequence can be initiated.

  • Page 45: Modulating Heat Operation

    FORM 145.05-NOM2 (807) seconds off delay would be turned off. If at any time Tristate Modulated Heat the heating demand is lost for two seconds the demand The Tristate Modulated Heat option uses a three position for second stage operation would be turned off. The valve;...
  • Page 46 FORM 145.05-NOM2 (807) THIS PAGE INTENTIONALLY LEFT BLANK JOHNSON CONTROLS...

  • Page 47: Section 6 - User Interface Control Center

    FORM 145.05-NOM2 (807) SECTION 6 – USER INTERFACE CONTROL CENTER POWER UP BANNER SCREEN File View view York International Versecon HOME ALARM CANCEL ENTER FIG. 5 – KEYPAD / DISPLAY This screen is present at power up and is the default screen.

  • Page 48: Alarm Screen

    User Interface Control Center FORM 145.05-NOM2 (807) • • On – Normal – The screen will display this mode CRITICAL – The display will say NONE or list of operation when the blower is operating and the any active critical Alarms. If an Alarm is active, air proving switch circuit is closed but there is no the display will give a description of the Alarm demand for economizer, cooling, or heating.

  • Page 49: I/O Points

    FORM 145.05-NOM2 (807) I/O POINTS Digital Out To use the I/O Points screen use the right arrow key • CV Fan Enable – On or Off > to move to [I/O Points] and press the ENTER key. • VAV Fan Enable – On or Off Use the right >...

  • Page 50: Setpoints

    User Interface Control Center FORM 145.05-NOM2 (807) • SETPOINTS Use the right arrow key > to scroll through the Setpoints. The following procedure is required to change a Setpoint: • The screen will display brackets [ ] around the • value to be changed.

  • Page 51: Table 13 - Setpoint Screen Parameters

    FORM 145.05-NOM2 (807) The parameters in Table 13 can be programmed using the Setpoint screen. TABLE 13 – SETPOINT SCREEN PARAMETERS DESCRIPTION OPTIONS DEFAULT VALUE Unit Enable On / Off Min DX Prs Drop (FlexSys units only) 0.2 “wc – 1.0”wc 0.5 “wc POA DX Prs Drop (FlexSys units only) .06”wc to 1.0”wc...

  • Page 52: Forced Outputs

    User Interface Control Center FORM 145.05-NOM2 (807) • FORCED OUTPUTS Use the right arrow key > to scroll through the Forced Outputs. This feature of the Keypad / Display is intended as a service tool for the experience Service Technician. The feature allows all the binary and analog outputs to •...

  • Page 53: Setting Date And Time

    FORM 145.05-NOM2 (807) SETTING DATE AND TIME File View To set the date and time in the BACview Keypad / view Display: D a t e ( d d - m m m - y y ) • Select the HOME key, to navigate to the Run [ 1 9 ] - A u g - 0 3 Status screen.
  • Page 54 User Interface Control Center FORM 145.05-NOM2 (807) • In the Time screen, use the key to select the fi eld to the far left. This is the Hour fi eld. Press File View view the ENTER key and use the INC or DEC key to enter the current hour.
  • Page 55 FORM 145.05-NOM2 (807) press the ENTER key. File View view • The display will show the current time. Press the right arrow key > six times and the display D a y l i g h t S a v i n g 0 3 E n d [ O c t ] will show the status of the Daily Schedule (On or Off)

  • Page 56: Holiday Schedule

    User Interface Control Center FORM 145.05-NOM2 (807) • • Use the right arrow key > to scroll down to the Use the right arrow key > to place brackets [ ] Stop fi elds around the Day slot on which you want the start stop schedule to be active.

  • Page 57: Communications

    FORM 145.05-NOM2 (807) COMMUNICATIONS Network Baud Rate The Versecon unit is designed to communicate with a Before setting the communication Baud Rate, power Building Automation System. needs to be removed from the control board. The control only reads the Baud Rate information when the control The Building Automation System communication uses is fi...

  • Page 58: Device Object Instance (De)

    User Interface Control Center FORM 145.05-NOM2 (807) setting the MAC address (see Figure B). The switches Device Object Instance (DE) are identifi ed on the control board as “Module Address”. The unit is shipped to automatically establish the DE The switch on the left corresponds to the tens digit and address after the MAC address is established using the the switch on the right corresponds to the one digit.
  • Page 59 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Output Signal to Open the VAV Boxes: Box Open Out 11005...
  • Page 60 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) CompC En 11008 Not Applicable CompC Suct Out...
  • Page 61 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Bypass Damper Output Based DmpSatMod 0 - 100 16122 Only with Flexsys on Supply Air Temperature...
  • Page 62 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Economizer Supply Air Temp Control: EcSat Enable 15006...
  • Page 63 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Indicates if the Constant Volume Fan Output is Forced On: FCCVEn 15501 1 = On - Active...
  • Page 64 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns the Friday Schedule 11 On and Off: FRIDAYSCHED11 1 = On - Active...
  • Page 65 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns the Friday Schedule 7 On and Off: FRIDAYSCHED7 1 = On - Active 0 = Off - Inactive...
  • Page 66 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Heat Type* 1 = Staged Type of Heat in the Unit 16008...
  • Page 67 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Status of the Holiday 1 Schedule: HOLIDAY 1 STAT 1046 1 = On - Active...
  • Page 68 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Status of the Holiday 5 Schedule: HOLIDAY 5 STAT 1050...
  • Page 69 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Holiday Schedule 6 Start Time HSTART HR6 1 - 24 1100 Hour...
  • Page 70 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Holiday Schedule 11 Stop HSTOP HR11 1 - 24 1152...
  • Page 71 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Holiday Schedule 2 Stop Time HSTOP MIN2 1 - 60 1071 Minutes...
  • Page 72 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Monday On / Off for Schedule 11: MONDAYSCHED11 1= On - Active...
  • Page 73 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Monday On / Off for Schedule 7: MONDAYSCHED7 1= On - Active...
  • Page 74 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Sets the Month of the Year for OMONTH1 1 -12 1235...
  • Page 75 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Sets the Minutes for the Start OSTART MIN2 1 - 60 1241...
  • Page 76 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Sets the Minutes for the Stop OSTOP MIN4 1 - 60 1263...
  • Page 77 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Identifi es if any Over Ride Schedule is Active: Ovr Sched 1 = On - Active...
  • Page 78 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Saturday On / Off for Schedule 12: SATURDAYSCHED12 1001...
  • Page 79 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Saturday On / Off for Schedule 7: SATURDAYSCHED8 1= On - Active...
  • Page 80 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Gives the Status of Schedule 4: SCHEDULE4STAT 1 = On - Active 0 = Off - Inactive...
  • Page 81 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) START HR12 Start Hours for Schedule 12 1- 24 START HR13 Start Hours for Schedule 13...
  • Page 82 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) STOP HR14 Stop Hours for Schedule 14 1 - 24 1016...
  • Page 83 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Sunday On / Off for Schedule 12: SUNDAYSCHED12 1002...
  • Page 84 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Sunday On / Off for Schedule 8: SUNDAYSCHED8 1= On - Active...
  • Page 85 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Thursday On / Off for Schedule 3: THURSDAYSCHED3 1= On - Active...
  • Page 86 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Tuesday On / Off for Schedule 13: TUESDAYSCHED13 1008...
  • Page 87 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Tuesday On / Off for Schedule 9: TUESDAYSCHED9 1= On - Active...
  • Page 88 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Status of the Binary Value of the Output to the Fan: VLFanOut 15603...
  • Page 89 FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Wednesday On / Off for Schedule 12: WEDNSDAYSCHED12 1= On - Active...
  • Page 90 User Interface Control Center FORM 145.05-NOM2 (807) TABLE 15 – BACnet MS/TP points (Cont.) Value Unit Variable Read ( R ) Range Instance Point ID Point Description (Analog Comments Type Write ( W ) (Analog Number Only) Only) Turns Wednesday On / Off for Schedule 7: WEDNSDAYSCHED7 1= On - Active...

  • Page 91: Section 7 - Parameter Descriptions And Options

    FORM 145.05-NOM2 (807) SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS TABLE 16 – DEFINITIONS MENU ITEM DEFINITION # DUCT SENSORS - 1 OR 2 Identifi es the number of duct static inputs the Unit Control is programmed for. AC - S/A DEW EN This enables dew point supply air temperature cooling control (FlexSys units only).
  • Page 92 Parameter Description and Options FORM 145.05-NOM2 (807) TABLE 16 - DEFINITIONS (CONT.) MENU ITEM DEFINITION COIL DIF STATIC This is the pressure drop across the evaporator coil (FlexSys units only). COIL LEAV TEMP This is the temperature of the air leaving the evaporator coil (FlexSys units only).
  • Page 93 FORM 145.05-NOM2 (807) TABLE 16 - DEFINITIONS (CONT.) MENU ITEM DEFINITION FAN OUTPUT This gives the status of fan operation. The status is ON whenever the output to CV or VAV supply fan is ON. FAN SP % BY BAS This item identifi...
  • Page 94 Parameter Description and Options FORM 145.05-NOM2 (807) TABLE 16 - DEFINITIONS (CONT.) MENU ITEM DEFINITION ON-DXCOOL This is the Status Screen display when the conditions are right for chilled water operation (supply air temperature >= supply air set point plus 5.0 degrees or return air temperature >= return air set point plus 2.0 degrees.

  • Page 95: Section 8 - Service

    FORM 145.05-NOM2 (807) SECTION 8 – SERVICE ANALOG INPUTS duct work or the under fl oor space and convert it to a 4 – 20 ma input. The milliamp input is sent to the Unit Control and compared against the “Fan-S/A Pres SP”. Temperature Sensors The transducer(s) are factory wired, but the pneumatic The temperature sensors are all 10K Type II thermistors.

  • Page 96: Coil Pressure Drop (Flexsys Units Only)

    Service FORM 145.05-NOM2 (807) Coil Pressure Drop (FlexSys Units Only) TABLE 21 – HUMIDITY SENSOR OUTPUT On FlexSys units a transducer is used to monitor the RELATIVE RELATIVE MA OUTPUT MA OUTPUT pressure drop across the cooling coil. This pressure drop HUMIDITY HUMIDITY is used to verify supply fan operation and also used to...

  • Page 97: Dirty Filter (Alarm)

    FORM 145.05-NOM2 (807) • The display will tell you Off or On and # Trips. If the The second method is through the Keypad / Dis- accumulated fault count reaches fi ve, the control will play. Press the right arrow key > until the display declare a “Duct High Pressure Alarm”.

  • Page 98: Freeze (Fault / Alarm)

    Service FORM 145.05-NOM2 (807) Freeze (Fault / Alarm) The control will register a “Freeze Fault” as long as the A non-averaging type freezestat T1 is provided to switch is open. When the temperature switch closes, the protect hydronic coils from subfreezing temperatures. unit returns to normal operation.

  • Page 99: Control Board Configuration

    FORM 145.05-NOM2 (807) CONTROL BOARD CONFIGURATION Main Control Board Table 22 identifi es the type of input device connected The Analog Inputs (IN-1 to IN-10) on the main control to each of the analog inputs for the various Versecon board can be configured for the following type of configurations.

  • Page 100: Auxiliary Control Board

    Service FORM 145.05-NOM2 (807) Auxiliary Control Board The Analog Inputs (IN-1-IN-8) on the auxiliary control board can be configured for the following type of inputs: • Thermistor – temperature input • Dry contact – on / off binary input • 0 –...

  • Page 101: Table 22 - Constant Volume / Variable Air Volume Main Control Board

    FORM 145.05-NOM2 (807) TABLE 22 – CONSTANT VOLUME / VARIABLE AIR VOLUME MAIN CONTROL BOARD * BOARD CONNECTOR I/O TYPE INPUT DEVICE INPUT POINT IN-1 ANALOG INPUT SUPPLY AIR TEMP THERMISTOR IN-2 ANALOG INPUT MIXED AIR TEMP THERMISTOR IN-3 ANALOG INPUT DUCT STATIC PRESSURE 1 4 –...

  • Page 102: Table 23 - Constant Volume / Variable Air Volume Expansion

    Service FORM 145.05-NOM2 (807) TABLE 23 – CONSTANT VOLUME / VARIABLE AIR VOLUME EXPANSION CONTROL BOARD * BOARD CONNECTOR I/O TYPE INPUT DEVICE INPUT POINT IN-1 ANALOG INPUT NOT USED 0-5 VDC IN-2 ANALOG INPUT NOT USED 0-5 VDC IN-3 ANALOG INPUT NOT USED 0-5 VDC...

  • Page 103: Table 24 - Main Control Board

    FORM 145.05-NOM2 (807) TABLE 24 – MAIN CONTROL BOARD * BOARD CONNECTOR I/O TYPE INPUT DEVICE INPUT POINT IN-1 ANALOG INPUT SUPPLY AIR TEMP THERMISTOR IN-2 ANALOG INPUT MIXED AIR TEMP THERMISTOR IN-3 ANALOG INPUT UNDER FLOOR STATIC PRESSURE 4 – 20 MA IN-4 NOT USED IN-5...

  • Page 104: Table 25 - Expansion Control Board

    Service FORM 145.05-NOM2 (807) TABLE 25 – EXPANSION CONTROL BOARD * BOARD CONNECTOR I/O TYPE INPUT DEVICE INPUT POINT IN-1 NOT USED IN-2 NOT USED IN-3 NOT USED IN-4 NOT USED IN-5 NOT USED IN-6 NOT USED IN-7 NOT USED IN-8 NOT USED IN-9...

  • Page 105: Fig. 11 - Wiring Diagram Power Circuit

    FORM 145.05-NOM2 (807) LD13009 FIG. 11 – WIRING DIAGRAM POWER CIRCUIT JOHNSON CONTROLS...

  • Page 106: Fig. 12 - Wiring Diagram - Main Control Board

    Service FORM 145.05-NOM2 (807) LD13010 FIG. 12 – WIRING DIAGRAM - MAIN CONTROL BOARD JOHNSON CONTROLS...

  • Page 107: Fig. 13 - Wiring Diagram - Expansion Control Board

    FORM 145.05-NOM2 (807) LD13011 FIG. 13 – WIRING DIAGRAM - EXPANSION CONTROL BOARD JOHNSON CONTROLS...
  • Page 108 Tele. 800-861-1001 P.O. Box 1592, York, Pennsylvania USA 17405-1592 Subject to change without notice. Printed in USA www.york.com Copyright © by Johnson Controls 2006 ALL RIGHTS RESERVED Form 145.05-NOM2 (807) New release...

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