Johnson Controls LSWU Manual
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Johnson Controls LSWU Manual

With ipu2 control 25–105 ton
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WATER-COOLED SELF-CONTAINED UNITS
Supersedes 145.05-NOM7 (818)
Form 145.05-NOM7 (1019)
INSTALLATION, OPERATION AND MAINTENANCE
035-22910-007
MODEL LSWU/LSWD/LSWF
WITH IPU2 CONTROL
25–105 TON
Issue Date:
October 31, 2019

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Summary of Contents for Johnson Controls LSWU

  • Page 1 WATER-COOLED SELF-CONTAINED UNITS Supersedes 145.05-NOM7 (818) Form 145.05-NOM7 (1019) INSTALLATION, OPERATION AND MAINTENANCE 035-22910-007 MODEL LSWU/LSWD/LSWF WITH IPU2 CONTROL 25–105 TON Issue Date: October 31, 2019...

  • Page 2: General Safety Guidelines

    The manufacturer will NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. Failure to follow this warn- ing will void the manufacturer’s warranty and cause serious damage to property or personal injury. WARNING: Cancer and Reproductive Harm –– www.P65Warnings.ca.gov. JOHNSON CONTROLS...

  • Page 3: Changeability Of This Document

    FORM 145.05-NOM7 CHANGEABILITY OF THIS DOCUMENT ISSUE DATE: 10/31/2019 CHANGEABILITY OF THIS DOCUMENT In complying with Johnson Controls’ policy for con- regarding the applicability of these documents, rig- tinuous product improvement, the information con- ging, lifting, and operating/service personnel should...

  • Page 4: Nomenclature

    FORM 145.05-NOM7 NOMENCLATURE ISSUE DATE: 10/31/2019 NOMENCLATURE LSWU(D/F) PRODUCT MODEL NUMBER 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 L S W U S P D UNIT TYPE ELECTRIC L = "L"...

  • Page 5: Table Of Contents

    Units Only) ..............83 ™ Return, Outdoor, Supply Air, and Mixed Air Sensors ..................84 Steam Heat ..............................84 Hot Water Heat ............................... 85 Electric Heat ..............................85 Filters ................................85 SECTION 3 – START-UP ............................87 Crankcase Heaters ............................87 JOHNSON CONTROLS...
  • Page 6 Power Up Banner ............................169 Communication ............................169 SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS ................183 SECTION 8 – SERVICE ............................195 Analog Input Operation ..........................195 Digital Compressor Controller Fault Codes ....................198 Faults ................................199 Multi Media Card ............................208 JOHNSON CONTROLS...
  • Page 7 FIGURE 47 - Full Outlet Plenum Option (LSWU 050–060) ..................66 FIGURE 48 - Unit Dimensions, Discharge Plenum (LSWU 070–105) ...............67 FIGURE 49 - Unit Dimensions Sound Attenuating Plenum Option (LSWU/F 025–040) ..........68 FIGURE 50 - Unit Dimensions Sound Attenuating Plenum Option (LSWU/F 050–060) ..........69 FIGURE 51 - Unit Dimensions All Models, Inlet Plenum (LSWU/F 070–105) ............70...
  • Page 8 FIGURE 77 - Condenser and Water Economizer Valve Operation and Piping Diagram ........123 FIGURE 78 - Waterside Economizer Actions ......................124 FIGURE 79 - User Interface Control Panel ......................143 FIGURE 80 - IPU Control Board..........................170 FIGURE 81 - MAC Address Switches ........................171 FIGURE 82 - Control Board I/O Locations ......................201 JOHNSON CONTROLS...
  • Page 9 TABLE 1 - Acronym Chart ............................10 TABLE 2 - Voltage Limitations ..........................11 TABLE 3 - Operating Limitations ..........................11 TABLE 4 - LSWU/LSWD/LSWF Minimum CFM ..................... 11 TABLE 5 - Operating Weights (LSW_025–060) ......................36 TABLE 6 - Supply Fan Motor Weights ........................36 TABLE 7 - Supply Fan Variable Frequency Drive Weights ..................37...

  • Page 10: Section 1 - Introduction

    Logic Controller Display Supply Fan Relay OLSF Supply Fan Overload Phase Monitor Power Supply Supply Fan Relay Toggle Switch Transformer Variable Frequency Drive Supply Air Temp Mixed Air Temp Air Flow Switch Duct High Static Return Air Temp JOHNSON CONTROLS...

  • Page 11: Section 2 - Installation

    Bulb panels. Before servicing, open and tag all Entering Air DX Coil – Wet disconnect switches. 57.0°F 72.0°F Bulb TABLE 4 - LSWU/LSWD/LSWF MINIMUM CFM DX Cooling Coil Airflow Velocity STD EVAP HI EFF EVAP EVAP AND UNIT (12 FINS...

  • Page 12: Location And Clearances

    Clearance 075-83768-903 REV- FILTER OPTIONS “A” NOTE: 4 inch filter 76.43 1. All dimensions are in inches. 4 inch prefilter + 4 inch high efficiency filter 80.68 FIGURE 2 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE, TOP DISCHARGE (LSW_025–040) JOHNSON CONTROLS...

  • Page 13: Figure 3 - Recommended Service And Maintenance Clearance, Top Discharge(Lsw_050-060)

    Clearance 075-83768-903 REV- FILTER OPTIONS “A” 4 inch filter 82.00 4 inch prefilter + 4 inch high efficiency filter 86.25 NOTE: 1. All dimensions are in inches. FIGURE 3 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE, TOP DISCHARGE (LSW_050–060) JOHNSON CONTROLS...

  • Page 14: Figure 4 - Recommended Service And Maintenance Clearance, Top Discharge (Lsw_070-105)

    FILTER OPTIONS “A” 4 inch deep 102.06 4 inch prefilter + 4 inch high efficiency filter 106.31 NOTE: 1. All dimensions are in inches. FIGURE 4 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE, TOP DISCHARGE (LSW_070–105) JOHNSON CONTROLS...

  • Page 15: Figure 5 - Recommended Service And Maintenance Clearance With Sound Attenuating Plenum

    075-83768-907 REV -- FILTER OPTIONS “A” 4 inch filter 76.43 4 inch prefilter + 4 inch high efficiency filter 80.68 NOTE: 1. All dimensions are in inches. FIGURE 5 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH SOUND ATTENUATING PLENUM (LSW_025–040) JOHNSON CONTROLS...

  • Page 16: Figure 6 - Recommended Service And Maintenance Clearance With Sound Attenuating Plenum

    075-83756-909 REV- FILTER OPTIONS “A” 4 inch filter 82.00 4 inch prefilter + 4 inch high efficiency filter 86.25 NOTE: 1. All dimensions are in inches. FIGURE 6 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH SOUND ATTENUATING PLENUM (LSW_050–060) JOHNSON CONTROLS...

  • Page 17: Figure 7 - Recommended Service And Maintenance Clearance With Airside Economizer (Lsw_025-040)

    075-83768-909 REV A FILTER OPTIONS “A” 4 inch filter 76.43 4 inch prefilter + 4 inch high efficiency filter 80.68 NOTE: 1. All dimensions are in inches. FIGURE 7 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH AIRSIDE ECONOMIZER (LSW_025–040) JOHNSON CONTROLS...

  • Page 18: Figure 8 - Recommended Service And Maintenance Clearance, Front Discharge (Lsw_070-105)

    075-83744-913 REV - FILTER OPTIONS “A” 4 inch filter 102.06 4 inch pre-filter + 4 inch high efficiency filter 106.31 NOTE: 1. All dimensions are in inches. FIGURE 8 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE, FRONT DISCHARGE (LSW_070–105) JOHNSON CONTROLS...

  • Page 19: Figure 9 - Recommended Service And Maintenance Clearance With Sound Attenuating Plenum

    075-83744-907 REV - FILTER OPTIONS “A” 4 inch filter 102.06 4 inch pre-filter + 4 inch high efficiency filter 106.31 NOTE: 1. All dimensions are in inches. FIGURE 9 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH SOUND ATTENUATING PLENUM (LSW_070–105) JOHNSON CONTROLS...

  • Page 20: Figure 10 - Recommended Service And Maintenance Clearance With Airside Economizer (Lsw_050-060)

    075-83756-907 REV A- FILTER OPTIONS “A” 4 inch filter 82.00 4 inch prefilter + 4 inch high efficiency filter 86.25 NOTE: 1. All dimensions are in inches. FIGURE 10 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH AIRSIDE ECONOMIZER (LSW_050–060) JOHNSON CONTROLS...

  • Page 21: Figure 11 - Recommended Service And Maintenance Clearance With Airside Economizer (Lsw_070-105)

    075-83744-909 REV - FILTER OPTIONS “A” 4 inch filter 102.06 4 inch pre-filter + 4 inch high efficiency filter 106.31 NOTE: 1. All dimensions are in inches. FIGURE 11 - RECOMMENDED SERVICE AND MAINTENANCE CLEARANCE WITH AIRSIDE ECONOMIZER (LSW_070–105) JOHNSON CONTROLS...

  • Page 22: Rigging And Unit Handling

    Refer to these weights when selecting a crane for rig- ging. Contact your Johnson Controls Sales Office if you have any questions regarding unit weights. Do not use hooks to lift unit or hook into Ensure lifting equipment capacity ex- open channels to lift unit.

  • Page 23: Figure 12 - Vibration Isolation Pad Locations (Lsw_025-040)

    Figure Proper placement of isolation devices Do not use hooks to lift unit or hook into under the curb of the LSWU is critical to open channels to lift unit. This could the operation and noise reduction of the 1 2 .

  • Page 24: Figure 13 - Vibration Isolation Pad Locations (Lsw_050-060)

    Figure 12. and tip over, causing injury. Proper placement of isolation devices under the curb of the LSWU is critical to the operation and noise reduction of the Do not use hooks to lift unit or hook into unit. Isolation pads supplied with unit open channels to lift unit.

  • Page 25: Figure 14 - Vibration Isolation Pad Locations (Lsw_070-105)

    Units can become unstable and tip over, causing injury. Proper placement of isolation devices under the curb of the LSWU is critical to the operation and noise reduction of the Do not use hooks to lift unit or hook into unit.

  • Page 26: Figure 15 - Warning Label

    • Use 1/2-inch or better grade 80 chain and acces- items are in good condition, are currently quali- sories. If substituting for chain, use equivalently fied (for example, inspection is up-to-date), and rated components. are properly used. JOHNSON CONTROLS...

  • Page 27: Figure 16 - Lifting Recommendations, Coil Section Only (Lsw_025-040)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 35.00 REF LIFTING POINT LIFTING POINT 78.37 REF 79.50 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21637 FIGURE 16 - LIFTING RECOMMENDATIONS, COIL SECTION ONLY (LSW_025–040) JOHNSON CONTROLS...

  • Page 28: Figure 17 - Lifting Recommendations, Coil Section Only (Lsw_050-060)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 35.00 REF LIFTING POINT LIFTING POINT 100.00 REF 90.00 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21638 FIGURE 17 - LIFTING RECOMMENDATIONS, COIL SECTION ONLY (LSW_050–060) JOHNSON CONTROLS...

  • Page 29: Figure 18 - Lifting Recommendations, Coil Section Only (Lsw_070-105)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 52.00 REF FRAME OVERALL 130.00 REF LIFTING POINT LIFTING POINT 102.00 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21639 FIGURE 18 - LIFTING RECOMMENDATIONS, COIL SECTION ONLY (LSW_070–105) JOHNSON CONTROLS...

  • Page 30: Figure 19 - Lifting Recommendations, Fan Section Only (Lsw_025-040)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 35.37 REF LIFTING POINT LIFTING POINT 78.37 REF 79.50 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21640 FIGURE 19 - LIFTING RECOMMENDATIONS, FAN SECTION ONLY (LSW_025–040) JOHNSON CONTROLS...

  • Page 31: Figure 20 - Lifting Recommendations, Fan Section Only (Lsw_050-060)

    ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 41.00 REF LIFTING POINT LIFTING POINT 100.00 REF 90.00 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS 075-83756-950 SHT2 REV - FIGURE 20 - LIFTING RECOMMENDATIONS, FAN SECTION ONLY (LSW_050–060) JOHNSON CONTROLS...

  • Page 32: Figure 21 - Lifting Recommendations, Fan Section Only (Lsw_070-105)

    LIFTING POINT LIFTING POINT TOP VIEW 130.00 REF LIFTING POINT LIFTING POINT 52.74 REF OVERALL 102.00 REF LIFTING POINTS LIFTING POINTS 24.46 REF 44.00 REF FRAME SHIPPING TIMBERS LD21642 FIGURE 21 - LIFTING RECOMMENDATIONS, FAN SECTION ONLY (LSW_070–105) JOHNSON CONTROLS...

  • Page 33: Figure 22 - Lifting Recommendations, Fan And Coil Section Combined (Lsw_025-040)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT TOP VIEW LIFTING POINT 70.37 REF LIFTING POINT LIFTING POINT 78.37 REF 79.50 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21643 FIGURE 22 - LIFTING RECOMMENDATIONS, FAN AND COIL SECTION COMBINED (LSW_025–040) JOHNSON CONTROLS...

  • Page 34: Figure 23 - Lifting Recommendations, Fan And Coil Section Combined (Lsw_050-060)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT LIFTING POINT TOP VIEW 76.00 REF 100.00 REF LIFTING POINT LIFTING POINT 90.00 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21644- FIGURE 23 - LIFTING RECOMMENDATIONS, FAN AND COIL SECTION COMBINED (LSW_050–060) JOHNSON CONTROLS...

  • Page 35: Figure 24 - Lifting Recommendations, Fan And Coil Section Combined (Lsw_070-105)

    SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 LIFTING POINT TOP VIEW LIFTING POINT 96.00 REF 130.00 REF LIFTING POINT LIFTING POINT 102.00 REF LIFTING POINTS LIFTING POINTS SHIPPING TIMBERS LD21645 FIGURE 24 - LIFTING RECOMMENDATIONS, FAN AND COIL SECTION COMBINED (LSW_070–105) JOHNSON CONTROLS...

  • Page 36: Table 5 - Operating Weights (Lsw_025-060)

    2. Add waterside economizer weight, if selected, to coil section. 3. Add selected fan, motor, and VFD weight to the fan section weight to get total fan weight. 4. Add coil section, fan section and filter section weights together to obtain total unit weight. JOHNSON CONTROLS...

  • Page 37: Factory-Supplied Plenum

    Half Plenum and a Full Plenum option are available or other suitable lifting means to position the plenum for the LSWU option only. The Half Plenum can be on top of the unit. Prior to placing the plenum on the ordered with factory openings on the two long sides.

  • Page 38: Table 8 - Operating Weights (Lsw_070-Lsw_105)

    2. Add waterside economizer weight, if selected, to coil section. 3. Add selected fan, motor, and VFD weight to the fan section weight to get total fan weight. 4. Add coil section, fan section and filter section weights together to obtain total unit weight. JOHNSON CONTROLS...

  • Page 39: Segmented Unit Assembly

    Remove shipping Remove shipping restraint bolts restraint bolts Remove shipping Remove shipping restraint bolts restraint bolts BLOWER RESTRAINTS FROM BELOW BLOWER RESTRAINTS FROM ABOVE LD14022 FIGURE 25 - SHIPPING RESTRAINT LOCATIONS JOHNSON CONTROLS...

  • Page 40: Physical Data

    23.0 27.0 A / B / C 25.0 27.5 Type Shell and Tube Condensers Quantity (2 refrigerant circuits per condenser) Water In and Out Cop- Condenser Water per Victaulic Connections 2.625 2.625 2.625 2.625 2.625 2.625 Connections (inches) JOHNSON CONTROLS...

  • Page 41: Table 9 - Water-Cooled Self-Contained Unit Data (Lsw_025-060)

    8 / 12 8 / 12 8 / 12 (Qty of 20x20x2 / 24x20x2) Filters 4 Inch Deep - High Efficiency 8 / 12 8 / 12 8 / 12 8 / 12 (Qty of 20x20x2 / 24x20x2) JOHNSON CONTROLS...
  • Page 42 Consult factory Steam Coil Heating Electric Heat - KW - 240/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5 Electric Heat - KW - 480/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5 Electric Heat - KW - 600/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5 JOHNSON CONTROLS...

  • Page 43: Table 11 - Electric Heat For Lsw_025-060

    1. (*) All Dimensions are inside clear opening in inches 2. All heaters have 1 inch flange on 3 sides. The junction box is 4 inches wide. 3. Air Flow is Vertical. 4. Nominal Heater Voltages: 208/230-3-60, 460-3-60, 575-3-60 5. Heater Manufacturer - Indeeco. JOHNSON CONTROLS...
  • Page 44 FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY LEFT BLANK. JOHNSON CONTROLS...

  • Page 45: Dimensions

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 DIMENSIONS FIGURE 26 - UNIT DIMENSIONS, TOP DISCHARGE ASSEMBLED (LSWU 025–040) JOHNSON CONTROLS...

  • Page 46: Figure 27 - Unit Dimensions, Top Discharge, Assembled (Lswu 050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 27 - UNIT DIMENSIONS, TOP DISCHARGE, ASSEMBLED (LSWU 050–060) JOHNSON CONTROLS...

  • Page 47: Figure 28 - Unit Dimensions, Top Discharge, Assembled (Lswu 070-105)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 28 - UNIT DIMENSIONS, TOP DISCHARGE, ASSEMBLED (LSWU 070–105) JOHNSON CONTROLS...

  • Page 48: Figure 29 - Unit Dimensions, Front Discharge, Assembled (Lswf 050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 29 - UNIT DIMENSIONS, FRONT DISCHARGE, ASSEMBLED (LSWF 050–060) JOHNSON CONTROLS...

  • Page 49: Figure 30 - Unit Dimensions, Top Discharge, Segmented (Lswu_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 30 - UNIT DIMENSIONS, TOP DISCHARGE, SEGMENTED (LSWU_025–040) JOHNSON CONTROLS...

  • Page 50: Figure 31 - Unit Dimensions, Top Discharge, Segmented (Lswu 050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 31 - UNIT DIMENSIONS, TOP DISCHARGE, SEGMENTED (LSWU 050–060) JOHNSON CONTROLS...

  • Page 51: Figure 32 - Unit Dimensions, Top Discharge, Segmented (Lswu 070-105)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 32 - UNIT DIMENSIONS, TOP DISCHARGE, SEGMENTED (LSWU 070–105) JOHNSON CONTROLS...

  • Page 52: Figure 33 - Unit Dimensions, Front Discharge, Segmented (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 33 - UNIT DIMENSIONS, FRONT DISCHARGE, SEGMENTED (LSW_050–060) JOHNSON CONTROLS...

  • Page 53: Figure 34 - Unit Dimensions, Front Discharge, Assembled (Lsw_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 34 - UNIT DIMENSIONS, FRONT DISCHARGE, ASSEMBLED (LSW_025–040) JOHNSON CONTROLS...

  • Page 54: Figure 35 - Unit Dimensions, Front Discharge, Segmented (Lsw_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 35 - UNIT DIMENSIONS, FRONT DISCHARGE, SEGMENTED (LSW_025–040) JOHNSON CONTROLS...

  • Page 55: Figure 36 - Unit Dimensions, Down Flow, Assembled (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 36 - UNIT DIMENSIONS, DOWN FLOW, ASSEMBLED (LSW_050–060) JOHNSON CONTROLS...

  • Page 56: Figure 37 - Unit Dimensions, Down Flow, Segmented (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 37 - UNIT DIMENSIONS, DOWN FLOW, SEGMENTED (LSW_050–060) JOHNSON CONTROLS...

  • Page 57: Figure 38 - Bypass Plenum For Down Flow, Segmented (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 76.06 25.00 11.93 1.00 2X .97 BYPASS PLENUM 075-83810-902 Rev A FIGURE 38 - BYPASS PLENUM FOR DOWN FLOW, SEGMENTED (LSW_050–060) JOHNSON CONTROLS...

  • Page 58: Figure 39 - Unit Dimensions, Down Flow, Assembled (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 39 - UNIT DIMENSIONS, DOWN FLOW, ASSEMBLED (LSW_050–060) JOHNSON CONTROLS...

  • Page 59: Figure 40 - Unit Dimensions, Down Flow, Segemented (Lsw_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 40 - UNIT DIMENSIONS, DOWN FLOW, SEGEMENTED (LSW_025–040) JOHNSON CONTROLS...

  • Page 60: Figure 41 - Bypass Plenum For Down Flow, Segemented (Lsw_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 60.06 25.00 11.93 1.00 2X .97 BYPASS PLENUM FIGURE 41 - BYPASS PLENUM FOR DOWN FLOW, SEGEMENTED (LSW_025–040) JOHNSON CONTROLS...

  • Page 61: Figure 42 - Unit Dimensions Front Discharge, Assembled (Lswf 070-105)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 42 - UNIT DIMENSIONS FRONT DISCHARGE, ASSEMBLED (LSWF 070–105) JOHNSON CONTROLS...

  • Page 62: Figure 43 - Unit Dimensions, Front Discharge, Segmented (Lswf 070-105)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 43 - UNIT DIMENSIONS, FRONT DISCHARGE, SEGMENTED (LSWF 070–105) JOHNSON CONTROLS...

  • Page 63: Figure 44 - Half Outlet Plenum Option (Lswu 025-040)

    075-83768-905 REV- NOTES: 1. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. 2. All dimensions are in inches. FIGURE 44 - HALF OUTLET PLENUM OPTION (LSWU 025–040) JOHNSON CONTROLS...

  • Page 64: Figure 45 - Half Outlet Plenum Option (Lswu 050-060)

    075-83756-905 REV- NOTES: 1. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. 2. All dimensions are in inches. FIGURE 45 - HALF OUTLET PLENUM OPTION (LSWU 050–060) JOHNSON CONTROLS...

  • Page 65: Figure 46 - Full Outlet Plenum Option (Lswu 025-040)

    1. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. 2. Optional hot water piping is inside full plenum 3. All dimensions are in inches. FIGURE 46 - FULL OUTLET PLENUM OPTION (LSWU 025–040) JOHNSON CONTROLS...

  • Page 66: Figure 47 - Full Outlet Plenum Option (Lswu 050-060)

    1. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. 2. Optional hot water piping is inside full plenum. 3. All dimensions are in inches. FIGURE 47 - FULL OUTLET PLENUM OPTION (LSWU 050–060) JOHNSON CONTROLS...

  • Page 67: Figure 48 - Unit Dimensions, Discharge Plenum (Lswu 070-105)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 48 - UNIT DIMENSIONS, DISCHARGE PLENUM (LSWU 070–105) JOHNSON CONTROLS...

  • Page 68: Figure 49 - Unit Dimensions Sound Attenuating Plenum Option (Lswu/F 025-040)

    4. Option is not available with ducted connections. 5. With this option the top row of filters can only be removed from the end of the filter rack. 6. All dimensions in inches. FIGURE 49 - UNIT DIMENSIONS SOUND ATTENUATING PLENUM OPTION (LSWU/F 025–040) JOHNSON CONTROLS...

  • Page 69: Figure 50 - Unit Dimensions Sound Attenuating Plenum Option (Lswu/F 050-060)

    4. Option is not available with ducted connections. 5. With this option the top row of filters can only be removed from the end of the filter rack. 6. All dimensions in inches. FIGURE 50 - UNIT DIMENSIONS SOUND ATTENUATING PLENUM OPTION (LSWU/F 050–060) JOHNSON CONTROLS...

  • Page 70: Figure 51 - Unit Dimensions All Models, Inlet Plenum (Lswu/F 070-105)

    4. With this option the top row of filters can only be removed from the end of the filter rack. 5. All dimensions are in English. 6. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. FIGURE 51 - UNIT DIMENSIONS ALL MODELS, INLET PLENUM (LSWU/F 070–105) JOHNSON CONTROLS...

  • Page 71: Figure 52 - Unit Dimensions Airside Economizer Option (Lsw_025-040)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 52 - UNIT DIMENSIONS AIRSIDE ECONOMIZER OPTION (LSW_025–040) JOHNSON CONTROLS...

  • Page 72: Figure 53 - Unit Dimensions Airside Economizer Option (Lsw_050-060)

    FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 FIGURE 53 - UNIT DIMENSIONS AIRSIDE ECONOMIZER OPTION (LSW_050–060) JOHNSON CONTROLS...

  • Page 73: Figure 54 - Unit Dimensions Airside Economizer Option (Lsw_070-105)

    1. All dimensions are in English. 2. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to change without notice. 3. Airside economizer is shipped separately. FIGURE 54 - UNIT DIMENSIONS AIRSIDE ECONOMIZER OPTION (LSW_070–105) JOHNSON CONTROLS...

  • Page 74: Electrical Data

    MOP = 2.25 (supply fan motor amps) plus electric heat FLA plus 2 amps. For units with cooling capability (all concurrent loads) Contact the factory for electric heat full load amp data. with or without hot water or steam heat: JOHNSON CONTROLS...

  • Page 75: Field Wiring

    This same circuit can be used as a means of institut- ing an external shutdown command. Wire 261 can be removed from terminal 3 (SD) of terminal block CTB1 and connected to a wire running to a normally closed JOHNSON CONTROLS...

  • Page 76: Pump Start Output

    Some systems and building designs can require that the unit be isolated from the supply and return duct sys- tems. The unit controller can control this field design and installation. On these systems, the Isolation Damp- er must be opened before the Supply Fan Output can JOHNSON CONTROLS...

  • Page 77: Figure 55 - Ctb1 Field Control Wiring

    6. Wire 261 must be removed from the SD terminal and connected to one side of a field installed normally closed contact. The other side of the normally closed contact is connected to the SD terminal. FIGURE 55 - CTB1 FIELD CONTROL WIRING JOHNSON CONTROLS...

  • Page 78: Phase Monitor

    T Plugs, located at the unit to aid in servicing and Failure to use the recommended duct checking water flow. collars could result in noise transmission into the occupied space. JOHNSON CONTROLS...

  • Page 79: Figure 56 - Condenser Connections

    25 on page 45 through Figure 43 on page 73) the lowest discharge pressure of the operat- for the exact location of the supply and return wa- ing compressors control head pressure. ter line connections. JOHNSON CONTROLS...
  • Page 80 Water Treatment: Do not use untreated or improperly On units with waterside economizer the condensing treated water. Equipment damage may occur. The use water temperature can drop to 50.0°F without effecting of improperly treated or untreated water in this equip- the operation of the compressors. JOHNSON CONTROLS...

  • Page 81: Static Pressure Transducer Installation (Vav Units Only)

    Flame retardant plastic or metal tubing may be required. Carefully select the ductwork sensing point for the pressure sensor. Improper location of the sensing point results in unsatisfactory operation of the entire variable air volume system. JOHNSON CONTROLS...

  • Page 82: Static Pressure Transducer Installation (Flexsys ™ Units Only)

    82) are located in the electric compart- ment. The tubing can be routed through a 7/8" hole in the top of the control enclosure. Make sure to use tie-wraps to keep the pneumatic tubing away from the electrical components and wiring. JOHNSON CONTROLS...

  • Page 83: Duct High Pressure Safety Switch

    To avoid confusion between “high” and “low” tubing, it is recommended that two different tubing colors be used and that this information be recorded, along with the sensing point location, on the master building blueprints. JOHNSON CONTROLS...

  • Page 84: Return, Outdoor, Supply Air, And Mixed Air Sensors

    It is important the outdoor air sensor be located so it senses the true outdoor air temperature. The sensor is connected at the J9 terminal strip, ter- minals 5 and 6. JOHNSON CONTROLS...

  • Page 85: Hot Water Heat

    The unit should never be operated for any installed on the leaving side of the evaporator coil. The length of time without the proper filters electric heat assembly, including the controls, is con- installed in the unit. tained within the evaporator coil department. JOHNSON CONTROLS...
  • Page 86 FORM 145.05-NOM7 SECTION 2 – INSTALLATION ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY LEFT BLANK. JOHNSON CONTROLS...

  • Page 87: Section 3 - Start-Up

    5. Verify the unit condenser water connections and be installed and serviced by an authorized condensate drain connections have been piped. Johnson Controls service mechanic or a 6. Check for proper water flow according to Deter- qualified service person experienced in...

  • Page 88: Unit Checks - Power Applied

    To verify proper rotation, monitor the suction and dis- drier and the expansion valve and the suction line charge pressure of each compressor system. Use the JOHNSON CONTROLS...
  • Page 89 = 108.0°F during the initial operating period, no Minus the liquid line temp = 96.0°F safeties trip and the unit controls are functioning properly, the unit is ready to Liquid Line Subcooling of = 12.0°F be placed into operation. JOHNSON CONTROLS...

  • Page 90: Table 13 - R410-A Pressure / Temperature Chart

    FORM 145.05-NOM7 SECTION 3 – START-UP ISSUE DATE: 10/31/2019 TABLE 13 - R410-A PRESSURE / TEMPERATURE CHART PSIG TEMP ˚F PSIG TEMP ˚F JOHNSON CONTROLS...

  • Page 91: Section 4 - Maintenance

    If this occurs, an oil sample riod, Johnson Controls is not be liable for costs incurred should be taken and analyzed. If contaminates are pres- to return the unit to satisfactory operation.

  • Page 92: Periodic Maintenance - Three To Six Months

    In addition to the checks listed in this section, periodic overall inspections of the unit should be accomplished to ensure proper equipment operation. Items such as loose hardware, component operation, refrigerant leaks, unusual noises, etc. should be investigated and corrected immediately. JOHNSON CONTROLS...

  • Page 93: Figure 60 - Sheave Alignment

    2. Remove old belts and recheck the sheave align- the wheel may become “locked” to the shaft. ment with a straight edge. 3. Loosen and remove the setscrews on both bearing 3. Install the new belts on the sheaves. locking collars. Inspect and, if necessary, replace. JOHNSON CONTROLS...
  • Page 94 If necessary, use a brass bar or pipe against the inner race to drift bearing into place. Never hit the housing, as bearing damage may result. Check that there is lubricant between the bearing outer ring and the housing. JOHNSON CONTROLS...
  • Page 95 10. Open the shut off isolation valves. 11. Inspect the condenser cover and gasket for leaks. JOHNSON CONTROLS...

  • Page 96: Water Pressure Drop Tables

    8.43 8.10 8.10 22.66 11.02 9.84 9.45 9.45 26.06 12.72 11.34 10.89 10.89 29.65 14.52 12.94 12.42 12.42 33.44 16.44 14.63 14.03 14.03 37.43 18.45 16.41 15.74 15.74 NOTES: 1 foot water (60.0°F) (ftAq) = 0.43 Psi (Psi) JOHNSON CONTROLS...

  • Page 97: Table 17 - Condenser Water Pressure Drop (Lsw_050-060), Feet Of W.c

    LSW105 10.6 12.5 14.6 16.8 19.1 11.4 10.1 21.5 12.9 11.5 11.0 11.0 24.1 14.6 13.0 12.5 12.5 26.8 16.3 14.6 14.0 14.0 29.6 18.1 16.3 15.5 15.5 32.6 20.0 18.0 17.2 17.2 35.7 22.1 19.8 19.0 19.0 JOHNSON CONTROLS...

  • Page 98: Determining Water Flow (Condenser Only)

    8. The unit requires 2–3 GPM/ton to operate cor- made to the pump/water system to correct. rectly. See Table 3 on page 11. 9. If the flow is low or high, adjustments should be made to the pump/water system to correct. JOHNSON CONTROLS...

  • Page 99: Section 5 - Sequence Of Operation

    All units require the installation of a return air sensor. However, because of the variation of the return air ar- • “OCCUPIED COOLING” rangements for this product, the return air sensor is • “OCC COOLING LOW” JOHNSON CONTROLS...
  • Page 100 The Supply Fan is turned OFF if all of the following the input is an analog input to the control. In the COM- conditions are met. MUNICATED mode, the input is a serial input from a Building Automated control system. JOHNSON CONTROLS...

  • Page 101: Figure 62 - Constant Volume Setpoint Determination

    Where: ΔTOC = “ZONE TEMP” – “OCC ZONE COOLING SETPOINT,” ΔTOH = “ZONE TEMP” – “OCC ZONE HEATING SETPOINT,” ΔTUC = “ZONE TEMP” – “UNOCC ZONE COOLING SETPOINT,” and ΔTUH = “ZONE TEMP” – “UNOCC ZONE HEATING SETPOINT” JOHNSON CONTROLS...

  • Page 102: Table 19 - Active Sat Setpoint Determination, Zone Temperature

    5.0°F, the Unit Controller enters the COMFORT VENT HEATING mode and initiate heating operation. • SETPOINTS key, COOLING subsection: “OCC ZONE COOLING SETPOINT” must be set The Unit Controller terminates COMFORT VENT • SETPOINTS key, HEATING subsection: “OCC ZONE HEATING SETPOINT” must be set JOHNSON CONTROLS...

  • Page 103: Variable Air Volume (Vav) Mode Operation

    The Supply Fan is turned ON if the Supply Fan is OFF for at least 60 seconds and one of the following condi- tions apply: • The “CURRENT OPER MODE” is set to OCCU- PIED JOHNSON CONTROLS...

  • Page 104: Figure 63 - Active Dsp Setpoint Vs. Duct Static Pres Rst Voltage

    DUCER SPAN” (0.25 "W.C., 1.25 "W.C., 2.50 "W.C., • “DUCT PRESS TRANSDUCER SPAN” – or 5.00 "W.C.). SETPOINTS key, SUPPLY SYSTEM subsection. This can be set for 0.25 "W.C., 1.25 "W.C., 2.50 "W.C., or 5.00 "W.C. based on the span of duct static JOHNSON CONTROLS...

  • Page 105: Figure 64 - Supply Fan Vfd Frequency

    Unit Controller is located at connector J13 varied through the communicated input, DSP_RST_ – terminal 8. BAS, AV05. If DSP_RST_BAS is set to 0%, “DUCT The following parameter must be programmed through STATIC PRESS ACTIVE SP” is the “DUCT STATIC the User Interface: JOHNSON CONTROLS...

  • Page 106: Table 20 - Piezometer Airflow Measurements

    • OPTIONS key, SUPPLY SYSTEM subsection: Supply Fan Airflow Measurement “DUCT HIGH STATIC SWITCH” must be set to Order the LSWU unit with an airflow measuring de- ENABLED vice installed at the factory and labeled on the unit's option tag. Enable and set up the piezometer using the Sequence of Operation Unit Interface.
  • Page 107 026 42645 101 7032.01 14064 special housing CITY 9 blade EPF wheel, TWIN 026 42646 101 026 42646 101 8555.41 17111 special housing CITY 12 blade EPQ wheel, TWIN 026 42646 102 026 42646 101 8555.41 17111 special housing CITY JOHNSON CONTROLS...
  • Page 108 Current RAT and SETPOINT” minus 0.5°F, the Unit Controller places the corresponding Cooling RAT and Heating RAT set- the unit in the OCCUPIED HEATING mode. points. The Supply Fan is ON and controlling the Ac- tive duct static pressure setpoint. JOHNSON CONTROLS...
  • Page 109 If the unit is TIVE SP” is linearly interpolated between the “SAT set for "NIGHT SET BACK" and goes HIGH SETPOINT” and the “SAT LOW SETPOINT” unoccupied without a zone temperature (see Figure 54 on page 110). signal, it shuts down. JOHNSON CONTROLS...

  • Page 110: Figure 65 - Active Sat Setpoint Vs. Supply Air Temp Rst Voltage

    “SAT LOW SETPOINT” (see Figure 57 on page When the “SAT RESET METHOD” is set to “SUP- 111). PLY FAN SPEED,” the Unit Controller monitors the “SUPPLY FAN VFD SPEED” command and set the “SUPPLY AIR TEMP ACTIVE SP” to a value between JOHNSON CONTROLS...

  • Page 111: Compressor Control And Sequencing

    AIR TEMP ACTIVE SP,” but only if the unit goes into sor defaults to 100% loaded capacity. COOLING mode when the Return Air Setpoint RAT is 0.5°F higher than its setpoint found in the COOLING key on the unit's display. JOHNSON CONTROLS...

  • Page 112: Figure 69 - System A Compressor At 1/3 Capacity

    "COMPRESSOR A LOAD" is im- LD21648 mediately set to "DIG COMP LOAD PT 2," which is FIGURE 70 - SYSTEM A COMPRESSOR AT 2/3 about two-thirds loaded. CAPACITY JOHNSON CONTROLS...
  • Page 113 33% of Capacity unit size is selected from the available options. Stage 3 to 2 Compressor “A” Fully Loaded Stage 2 to 1 Compressor “A” at 66% of Capacity Stage 1 to 0 Compressor “A” at 33% of Capacity JOHNSON CONTROLS...

  • Page 114: Compressor Operation

    OFF time is satisfied, the compres- This assists the Service Technician and assures equal sor is placed in the ready to run state. wear on all of the compressors in the unit. JOHNSON CONTROLS...

  • Page 115: Table 22 - Compressor Status Priority Level

    Table 22 on page 115 is used to de- • Reset resistance is less than 2750 Ohms termine which of the above to display. The greater the number, the higher the priority. The highest priority criteria is displayed. JOHNSON CONTROLS...

  • Page 116: Table 23 - Compressor Safeties

    Controller. If the Digital Compressor Controller interrupts the operation of the compressor, the compres- sor safety circuit opens. TABLE 23 - COMPRESSOR SAFETIES EXTERNAL INTERNAL DIGITAL HIGH PRESSURE CIRCUIT UNIT COMP COMPRESSOR COMPRESSOR COMPRESSOR CUT OUT BREAKER MOTOR PROTECTOR LINE BREAK CONTROLLER JOHNSON CONTROLS...
  • Page 117 The following procedure is an example for Fault Reset • The HISTORY buffer stores and display “COMP for compressors, supply system, etc. # SAFETY LOCKOUT” The # symbol varies to match the compressor number the data is recorded for (A, B, C, etc.) JOHNSON CONTROLS...
  • Page 118 TEMP” is declared and all active compressors are "LOCKOUT" immediately, the fault still exists. turned OFF. If a “WRN-LOW WATER TEMP” is active, it is reset when the “ENT WATER TEMP” rises above the low LD21626 limit temperature plus 1.0°F for 120 seconds. JOHNSON CONTROLS...

  • Page 119: Water Cooled Condenser Operations

    • Condenser Valve with Waterside Economizer STALLED” It is recommended that the technician verify what type of condenser piping is used in the LSWU unit and ver- Sequence of Operation ify how it is programed for operation under the previ- If the UNIT MODE is OCCUPIED or UNOCCUPIED ously mentioned keys on the unit's User Interface.

  • Page 120: Figure 73 - Condenser And Piping Diagram W/ Condenser Only Valve From The Factory

    • “COND WATER SYSTEM” can be set to a compressor that is not operating, which could result either VARIABLE FLOW or CONSTANT in a discharge high pressure fault. To prevent nuisance FLOW depending on the building system discharge high pressure faults, the Unit Controller also JOHNSON CONTROLS...

  • Page 121: Figure 74 - Cond Water Valve Vs. Condenser Pressure Pi Output

    SUPPLY RETURN COOLING Condenser Valve with Bypass Valve • Compressors are OFF for at least 60 seconds LD21633 • COND WATER SYSTEM is Variable Flow FIGURE 75 - CONDENSER OPERATION AND PIPING DIAGRAM W/ CONDENSER AND BYPASS VALVES JOHNSON CONTROLS...

  • Page 122: Figure 76 - Bypass Valve Position Vs. Cond Water Valve Position

    Unit Controller also compares the maximum discharge pressure of the ac- • “CURRENT OPER MODE” is UNOCCUPIED tive compressor systems to the programmed "DIS- or OCCUPIED COOLING STANDBY (default CHARGE PRESSURE SP MAX." The default value is is 50%) JOHNSON CONTROLS...

  • Page 123: Waterside Or Air Economizer Operation

    (FOF) is obtained from the local outside air is drawn in through a factory provided set Johnson Controls agent or branch. of dampers, and the return is usually exhausted outside since bringing more air in from the outside over pres- Once the “ECONO SYS STATUS”...

  • Page 124: Figure 78 - Waterside Economizer Actions

    • SETPOINTS key, ECONOMIZER subsection: TER COOLED • “WATER ECONO MIN POS” (default is • OPTIONS key, ECONOMIZER subsection: 30%) • “ECONO INSTALLED” should be set to • “WATER ECONO DELTA” (default is WATERSIDE 50.0°F) LD21636 FIGURE 78 - WATERSIDE ECONOMIZER ACTIONS JOHNSON CONTROLS...
  • Page 125 COND PRESSURE PI use the UP▲ or DOWN▼ to navigate to “CURRENT • The ECONOMIZER VALVE analog output is OPER MODE;” the unit display is either OCCUPIED 2VDC (0%) STANDBY or UNOCCUPIED STANDBY. JOHNSON CONTROLS...
  • Page 126 • The CONDENSER WATER VALVE analog out- held at its current position for 60 seconds and is put is set to 10VDC (0%) closed 2VDC (0%) • The ECONOMIZER VALVE analog output is- controlled by the ECONOMIZER PI JOHNSON CONTROLS...
  • Page 127 When the voltage output to the valve is 10VDC, the dirt buildup in the waterside economizer coil. valve is closed. When the voltage output to the valve is 2VDC or less, the valve is wide open. The CONDENS- ER WATER VALVE analog output is located at J15-8. JOHNSON CONTROLS...
  • Page 128 • Drive the “COND WATER VALVE” to “COND VALVE MIN POS” • Changes the “CURRENT OPER MODE” to “FLUSHING ECONO COIL” • Drive the “ECONOMIZER WATER VALVE” to “WATER ECONO MIN POSITION” • Drives the “COND WATER VALVE” to 0% (10 VOLTS) JOHNSON CONTROLS...
  • Page 129 SUPPLY FAN OUTPUT is turned on, and it must be tions clear. turned off once the SUPPLY FAN OUTPUT is turned Any time the SUPPLY FAN OUTPUT is turned OFF, off. the ISOLATION DAMPER also turns OFF. If the ISOLATION DAMPER CONTROL is User En- JOHNSON CONTROLS...
  • Page 130 FORM 145.05-NOM7 SECTION 5 – SEQUENCE OF OPERATION ISSUE DATE: 10/31/2019 Normally the LSWU units do not come Air Economizer Operation with an outdoor temperature sensor or Do not confuse AIR ECONOMIZER with VENTILA- enthalpy controls. This is a separate sec- TION.
  • Page 131 If the economizer is suitable, the Unit Controller sets the “COOLING CONTROL OFFSET” to 4.5°F. As long as the economizer remains active, the Unit Con- troller does not recalculate the “COOLING CONTROL OFFSET” and it remains at the 4.5°F setting. JOHNSON CONTROLS...
  • Page 132 Unit Controller. • The “HW / STEAM – VALVE POS” must be less Under the PROGRAM key, HEATING subsection, than or equal to 2% “HEATING SYSTEM” must be set to USER EN- JOHNSON CONTROLS...
  • Page 133 • The MIXED AIR TEMP must be greater than or ING OR OCCUPIED COOLING mode as a result equal to the “SUPPLY AIR TEMP ACTIVE SP” of a space sensor demand for cooling or heating for 5 minutes JOHNSON CONTROLS...

  • Page 134: Heat Operations

    See Table 19 on page 102 to determine what the “SUPPLY AIR TEMP ACTIVE SP” value is for Con- stant Volume units. On VAV and FlexSys units, the “SUPPLY AIR TEMP ACTIVE SP” is the “HEATING SAT” setpoint. JOHNSON CONTROLS...
  • Page 135 “SUPPLY AIR TEMP ACTIVE SP,” the Unit way as mentioned above. The unit might not have a hot Controller decreases the amount of heat water or steam coil to actuate. JOHNSON CONTROLS...
  • Page 136 • “MORNING WARM UP MAX TIME” must be set with a range of 15 minutes to 240 min- • VARIABLE AIR VOLUME and FLEXSYS utes (default is 120 minutes) units - “HEATING SAT” • CONSTANT VOLUME units - “2ND STAGE HEATING SETPOINT” JOHNSON CONTROLS...

  • Page 137: Ventilation System

    4. If the Return Air Temperature is greater than or The following can be used on units that have a recom- equal to the “RAT HEATING SETPOINT,” the mended Johnson Controls airside economizer installed. Unit Controller energizes the heating sequence The Unit Controller can be configured for several dif- based on the “MORNING WARM UP OPT...

  • Page 138: Dirty Filter Switch

    FLEXSYS OPERATION ™ • PROGRAM key, VENTILATION subsection: Series LSWU units can be configured for FlexSys op- “VENTILATION SYSTEM” must be set to eration. FlexSys operation is the use of an underfloor USER ENABLED plenum to provide conditioned air to a building. Since the conditioned air is delivered up from the floor, the •...
  • Page 139 UNOCCUPIED mode with a de- VAV unit. Below are recommended setpoints provided mand for heating or cooling. by the Johnson Controls engineering team. There has been a lot of testing and research completed on these FlexSys: Cooling systems to arrive at these setpoints.
  • Page 140 Bypass Damper Position: This is the actual position a. Starts a compressor of the bypass damper. The bypass damper should be able to drive between 0% and 100%. b. Commences an additional stage of cooling based on the “NEXT STAGE TO ENABLE” JOHNSON CONTROLS...
  • Page 141 O/A damper actuator, modulating the damp- • Unit MUST have heat installed ers open/closed. OA dampers are modulated to main- tain the active MX SAT SP • Heating System MUST be USER ENABLED • Active Slab Control MUST be USER ENABLED JOHNSON CONTROLS...

  • Page 142: Table 26 - Supply Air Density From Temperature And Altitude

    0.0621106 0.0611528 4000 0.0678959 0.0662751 0.0646750 0.0634064 0.0620818 0.0608488 0.0597202 0.0587966 5000 0.0654535 0.0638806 0.0623257 0.0610964 0.0598105 0.0586139 0.0575196 0.0566276 6000 0.0630110 0.0614860 0.0599764 0.0587864 0.0575392 0.0563790 0.0553190 0.0544586 7000 0.0606497 0.0591710 0.0577051 0.0565531 0.0553432 0.0542183 0.0531915 0.0523616 JOHNSON CONTROLS...

  • Page 143: Section 6 - User Interface Control Center

    The keypad the change. consists of thirty-six keys, that are divided into three LD16445 FIGURE 79 - USER INTERFACE CONTROL PANEL JOHNSON CONTROLS...
  • Page 144 Navigation through the circular list of items can also be achieved by repeated presses of the same Menu Select key, as long as no other keys are pressed. For JOHNSON CONTROLS...

  • Page 145: Table 27 - Status

    Normal - active / normal - inactive / safety trip / safety Derived Always Status fault / safety lockout / user disabled / none Filter Status Okay / change Derived Always Event Message Any active warnings are displayed Derived Always JOHNSON CONTROLS...

  • Page 146: Table 28 - Unit Data

    Look Up Table UNIT TYPE equals FLEXSYS Active SP 50º F to 65º F 65º F Evap Pres Drop Evap PD Limit Override 0.00 to 1.00 0.00 FLEXSYS only Freezestat Status Normal/Faulted Normal Always if Freezestat is installed JOHNSON CONTROLS...

  • Page 147: Table 29 - Cooling

    UNIT TYPE equals FLEXSYS and Need to Dehumidify Yes/No Heating System Type is ELECTRIC and ENABLED Active Slab Control is USER EN- Under Floor Temp OVRD Active - Inactive Derived ABLED Reset Enthalpy SP 30.00 BTU# Reset Enthalpy Active 30.00 BTU# JOHNSON CONTROLS...

  • Page 148: Table 30 - Compressor Systems (A-F)

    Look Up Table Always Suction * 0 to 400 Look Up Table Always Current Run Time HH:MM:SS Derived Always Ready To Run Yes / no Derived Always Ready To Stop Yes / no Derived Always NOTE: * May be A-F. JOHNSON CONTROLS...

  • Page 149: Table 31 - Supply System

    Look Up UNIT TYPE Equals VARIABLE AIR Highest 0.00 to 5.00 "W.C. Table VOLUME or FLEXSYS, Duct Pressure Sensor 2 is set to ENABLED, and Duct Active SP 0.00 to 5.00 "W.C. Derived Press Cntrl is set to HIGHEST. JOHNSON CONTROLS...

  • Page 150: Table 32 - Heating

    Heat Type does not equal NONE and Derived Optime Max Time Adapt Morn Warm Up equals ENABLED 0 Min. to Morning Warm Up Heat Type does not equal NONE and Daily Warm Up Timer Derived Off Time Adapt Morn Warm Up equals ENABLED JOHNSON CONTROLS...

  • Page 151: Table 33 - Economizer

    Economizer Installed is not Economizer PI Output 0 to 100% Derived NONE Economizer Installed is set Econo Valve Position 0 to 100% Derived to WATERSIDE Economizer Installed Mixed Air Temp -20.0°F to 180.0°F Look Up Table equals WATERSIDE JOHNSON CONTROLS...

  • Page 152: Table 34 - Ventilation

    Cond Valve Installed is COND ONLY or 0 to 100% Derived COND W/ BYPASS P1 Output User Enabled User Dis- Flush Cycle Economizer Installed is WATERSIDE User Disabled abled Flush Delay Time 0 to 60 Min. Economizer Installed is WATERSIDE JOHNSON CONTROLS...

  • Page 153: Setpoints

    60.0°F High 60.0°F Evap Leaving Air Temp 50.0°F to Evap Leaving Air Setpoint Cooling 50.0°F Temp High Setpoint Cooling Reset Enthalpy SP 25 to 35 BTU/LB 30 BTU/LB Setpoint Cooling Return Air Diff SP 4.0°F to 10.0°F 6.0°F JOHNSON CONTROLS...
  • Page 154 Control Method only shows in Constant Volume Mode. If it needs to be changed to Comm Zone Temp you must change the Unit Type to Con- stant Volume, make the change and put back to VAV or FlexSys. JOHNSON CONTROLS...

  • Page 155: Program

    Volume. If the unit is shipped as VAV or FlexSys you need to change the Unit Type to Constant Volume and change the Control Method to Communicated Zone Temperature control. Return to the VAV or FlexSys mode. Control Method only shows in the Constant Volume mode. 2. Spanish is a future option. It may not currently be available. JOHNSON CONTROLS...
  • Page 156 VAV or FlexSys you need to change the Unit Type to Constant Volume and change the Control Method to Communicated Zone Temperature control. Return to the VAV or FlexSys mode. Control Method only shows in the Constant Volume mode. JOHNSON CONTROLS...

  • Page 157: Options

    None / 2 Position / Standard None Options Condenser Cond Valves Installed None / Cond Only / Cond W/ Bypass None Options Condenser Water Flow Switch Not Installed / Installed Not Installed Options Condenser Condenser Type Water Cooled / Air Cooled Water Cooled JOHNSON CONTROLS...

  • Page 158: Date / Time

    ▼ key until the day you wish to view appears. The ▲ key scrolls backwards to the previous screen. If you want to provide continuous operation from one JOHNSON CONTROLS...

  • Page 159: Operating Hours / Start Counter

    Derived Compressor B Starts Compressor C Oper Hrs Unit Size Is More Than Or Equal To 50 Derived Compressor C Starts Shown below is a typical screen example. Hours / Starts Oper Hrs. XXXXX Compressor 1 Starts XXXXX JOHNSON CONTROLS...

  • Page 160: Printer

    CHECK key to output the report to the com- to select the report. puter. • As the report is uploading from the Unit Control- ler to the PC, it is displayed in the Hyper Terminal window. JOHNSON CONTROLS...

  • Page 161: Service

    Mx Supply Air Analog Input from the Supply or Analog J9-2 0-5 Volts I/O Board Temp Current Input Mixed Air Sensor Outside Air Analog Input from the Outdoor Air Analog J11-2 0-5 Volts I/O Board Input Humidity Humidity Sensor JOHNSON CONTROLS...
  • Page 162 Current ture Sensor Bypass Damp- Analog Output to the FlexSys Bypass Analog J15-11 0-10 VDC I/O Board Output er Position Damper Cond Water Analog Output to the Condenser Analog J15-8 2-10 VDC I/O Board Output Valve Water Valve JOHNSON CONTROLS...
  • Page 163 Gives the Actual Value of the Com- Commun Port P1 -20 F to 180 F IPU Board municated Zone Temperature Connexsys Error Feature Derived Not for Field Use and Detection Connexsys Error Page Derived Not for Field Use and Field JOHNSON CONTROLS...
  • Page 164 Digital Input from the Compressor Digital J23-2 Okay / Faulted I/O Board Input Chain E System E Safety Circuit Safety Inputs Digital Digital Input from the Compressor J23-5 Okay / Faulted I/O Board Chain F Input System F Safety Circuit JOHNSON CONTROLS...
  • Page 165 (Only Displayed when Error is Present) Data Log Used to Activate the Data Log Fea- Format ture of the Control Used to Enter a Specific DE Instance. DE Modifier -1 to 41943 See SECTION 6 – USER INTER- Address FACE CONTROL CENTER JOHNSON CONTROLS...
  • Page 166 Establishes the Stop Bit Setting for P2 Stop Bits 1 - 2 Communication Port 2 Update Flash On / Off Used to Update Control Software Update Flash Description of the Error Error (Only Displayed when Error is Present) JOHNSON CONTROLS...

  • Page 167: History

    If there are not any active warn- • Hours/Starts TABLE 41 - HISTORY KEY SEQUENCE HISTORY key pressed WARNING 1 WARNING 2 FAULT 1 FAULT 2 FAULT 3 Fault 1 Data Fault 2 Data Fault 3 Data JOHNSON CONTROLS...

  • Page 168: Password

    Unit-Overall Status Run as Level 1. If the user enters a Level 2 password, all parameters are displayed. The ▼ key is pressed to view the second STATUS value. History 03 – Status ◄► Current Oper Mode Run JOHNSON CONTROLS...

  • Page 169: Power Up Banner

    Server, Modbus Client or Terminal. Other Building Instance (DE) the value for “DE MODIFIER OFF- Automation system networks can be connected by us- SET” MUST BE SET TO –1. ing a router. The printer communication uses ASCII protocol and RS-232 hardware. JOHNSON CONTROLS...

  • Page 170: Figure 80 - Ipu Control Board

    FORM 145.05-NOM7 SECTION 6 – USER INTERFACE CONTROL CENTER ISSUE DATE: 10/31/2019 PORT 1 PORT 1 I/O CONTROL BOARD I/O CONTROL BOARD SWITCH SWITCH LD14084 FIGURE 80 - IPU CONTROL BOARD JOHNSON CONTROLS...

  • Page 171: Figure 81 - Mac Address Switches

    Modifier Address number using the numeric keypad, value in memory. and press the key again. Navigate to parameter “DE  MODIFIER OFFSET.” Press the key to enter the  DE Modifier Offset number using the numeric keypad and press the key again.  JOHNSON CONTROLS...

  • Page 172: Table 42 - Bacnet Ms/Tp, Modbus, Bacnet Ip

    Operation (Hour) COMP_E_ Compressor 3A Oper The Number of Hours Compressor E has AI13 OPER been in Operation (Hour) COMP_F_ Compressor 3B Oper The Number of Hours Compressor F has AI14 OPER been in Operation (Hour) JOHNSON CONTROLS...
  • Page 173 Being Used (0 = Simple; 1 = Mixed) COND_BYP_ The Maximum Allowable Opening for the Cond Bypass Max Pos AV41 1066 Bypass Valve (%) COND_BYP_ The Minimum Allowable Opening for the Cond Valve Min Pos AV42 1067 Condenser Water Valve (%) JOHNSON CONTROLS...
  • Page 174 8 - Safety Lockout) The Economizer Method Selected for Use ECON_ (0 - None; 1 - Dry Bulb; 2 - Single Enthalpy; 3 Econo method to use AV06 1031 METHOD - Dual Enthalpy; 4 - Best Method; 5 - Water- side) JOHNSON CONTROLS...
  • Page 175 MIX_AIR_ The Temperature of the Air Entering the Mixed Air Temp AI79 TEMP Evaporator Coil On a FlexSys Unit this is the Supply Air MIXD_SAT_ Mixed Sat Limit AV14 1039 Setpoint when Operating without a Bypass Damper (F) JOHNSON CONTROLS...
  • Page 176 Default is 72.0°F. The Outdoor Temperature the Control Uses OAT_HIGH_ OAT for High SAT AV19 1044 when Using Outdoor Air SAT Reset to Switch to the SAT High Limit Setpoint (F) JOHNSON CONTROLS...
  • Page 177 Actual Comp F Discharge Pressure (PSI) DISCH PRS_F_SUC- Pressures Suction F AI85 Actual Comp F Suction Pressure (PSI) TION RA_DIFF_ Return Air Differential A Value can be Provided by the BAS to Pro- AV48 vide a Return Air Differential. FlexSys Only. JOHNSON CONTROLS...
  • Page 178 The Upper Limit for the Supply Air Tempera- SAT High Setpoint AV26 1051 ture Setpoint on a VAV Unit (F) SAT_LOW_ The Lower Limit for the Supply Air Tempera- SAT Low Setpoint AV27 1052 ture Setpoint On a VAV Unit (F) JOHNSON CONTROLS...
  • Page 179 Normal - Inactive; 1 - Normal - Active; 5 - Warn- STAT ing; 8 - Safety Lockout) *NOTE: SUPPLY AIRFLOW has a maximum value of 58,000 CFM. Any value from 3,277 to 58,000 CFM cannot be displayed using Modbus. JOHNSON CONTROLS...
  • Page 180 19 - Morning Warm Up 20 - Power Up Standby 21 - Flushing Econo Coil Identifies the Unit Overall Status (0 - Local UNIT_STAT Unit Overall Status AI88 Stop; 1 - Run; 4 - Unit Lockout; 15 - Warning) JOHNSON CONTROLS...
  • Page 181 Temperature Value to the Control on a Con- Zone Temp BAS AV40 1065 stant Volume Unit with Communicated Zone Control (F) NOTE: The most recent listing of the standard points mapping can be found in the Johnson Controls website. JOHNSON CONTROLS...
  • Page 182 FORM 145.05-NOM7 SECTION 6 – USER INTERFACE CONTROL CENTER ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY LEFT BLANK. JOHNSON CONTROLS...

  • Page 183: Section 7 - Parameter Descriptions And Options

    This function is only active when the unit is in the Occupied mode. This parameter is programmed through the OPTIONS key. This parameter iden- COMP STAGING SEQ tifies the type of compressor staging the Unit Controller is to use. The choices are Simple or Mixed. JOHNSON CONTROLS...
  • Page 184 This setting indicates what type of condenser water system the unit is connected COND WATER SYSTEM to. It is used to determine what position the water valves should be in when the unit is on but not actively in the mechanical cooling mode. JOHNSON CONTROLS...
  • Page 185 Daily Warm Up Time Day 1. This parameter is programmed through the Options key and identifies the type DAMPER HARDWARE of ventilation system installed in the unit. The choices are None, 2 Position Damper, Standard Dampers. JOHNSON CONTROLS...
  • Page 186 Duct Static value before the Primary Unit Controller lockouts the unit on an over pressure fault. This is the actual duct static pressure sensed by static pressure transducer 1 DUCT STATIC PRES CURRENT 1 when the Unit Controller is programmed for two duct static inputs. JOHNSON CONTROLS...
  • Page 187 This parameter identifies the most important current active fault or warning. This feature is initiated through the Service key and is used to verify the opera- FACTORY RUN TEST tion of the unit by exercising all the binary and analog outputs. JOHNSON CONTROLS...
  • Page 188 The User Interface indicates OK or TRIPPED. This is a derived value and identifies the output from the Primary Unit Controller HW / STEAM HEAT - VALVE POS to the hydronic valve as percent open. JOHNSON CONTROLS...
  • Page 189 Air Temperature Setpoint on a Variable Air Volume Unit is set to the SAT Low Setpoint. This value is found under the Service key and identifies if a occupancy com- OCCUPANCY COMMAND mand is communicated from a front end BAS control. JOHNSON CONTROLS...
  • Page 190 This is the discharge pressure for compressor F. PRESSURES - SUCTION A This is the suction pressure for compressor A. PRESSURES - SUCTION B This is the suction pressure for compressor B. PRESSURES - SUCTION C This is the suction pressure for compressor C. JOHNSON CONTROLS...
  • Page 191 YES or NO. This is a derived value and means the minimum ON time has been achieved READY TO STOP COMP D and compressor D is ready to be de-energized. The User Interface displays either YES or NO. JOHNSON CONTROLS...
  • Page 192 This parameter is set through the PROGRAM key and is used to place the sup- SF VFD BYPASS MODE ply fan VFD into bypass mode when a supply fan VFD bypass is installed. The options are VFD Active or VFD Bypassed. JOHNSON CONTROLS...
  • Page 193 This parameter is programmed through the PROGRAM key and is used to UNDERFLR HUMI BAS identify to the Unit Controller that it is to use a communicated value for the Underfloor Air Humidity instead of a hard wired input. JOHNSON CONTROLS...
  • Page 194 This is the temperature of the condenser water leaving the unit. This value is found under the Service key and identifies the Zone Temp value ZONE TEMP BAS being communicated from a front end BAS control. ZONE TEMP CURRENT This is the temperature in the conditioned space. JOHNSON CONTROLS...

  • Page 195: Section 8 - Service

    1-5vdc style transducer. a 1 to 5VDC voltage. The DC voltage is sent to the Unit Controller and compared against the “DUCT STATIC JOHNSON CONTROLS...

  • Page 196: Table 44 - Temperature Sensor Resistance

    0 to 4.5VDC. Table 46 illustrates the DC volt output of 0 to 4.5VDC. Table 46 illustrates the DC volt output from the transducer for a given discharge pressure. from the transducer for a given suction pressure. JOHNSON CONTROLS...

  • Page 197: Table 47 - Humidity Sensor Outputs

    104.0 45.81 155.0 311.0 1.39 45.0 113.0 37.58 160.0 320.0 1.25 50.0 122.0 30.99 165.0 329.0 1.12 55.0 131.0 25.68 170.0 338.0 1.01 60.0 140.0 21.40 175.0 347.0 0.92 65.0 149.0 17.91 180.0 356.0 0.83 70.0 158.0 15.07 JOHNSON CONTROLS...

  • Page 198: Digital Compressor Controller Fault Codes

    60 uninterrupted minutes without any other restarts. ALERT’s. If five high discharge temperature ALERT’s have oc- curred within four hours, the Digital Compressor Con- troller locks out the compressor. The lockout can only be reset by cycling the 24VAC power OFF and ON. JOHNSON CONTROLS...

  • Page 199: Faults

    ING, SAFETY TRIP, SAFETY FAULT, or SAFETY to restart the unit after the fault has been corrected. LOCKOUT is present. A fault / warning description, method of reset and conditions under which the infor- • SYSTEM LOCKOUT – One of the compres- JOHNSON CONTROLS...
  • Page 200 If there are no faults in the HISTORY buf- fer, the screen displays “NO FAULT.” See SECTION 6 – USER INTERFACE CONTROL CENTER of this manual for additional information on how to navigate through the HISTORY menu. JOHNSON CONTROLS...

  • Page 201: Figure 82 - Control Board I/O Locations

    J11-9 J10-1 J17-1 J30-7 J10-12 J30-1 J15-15 J15-1 J13-10 J13-1 J9-1 J9-14 Note: All the connectors are not present on all units J16, J21, J22, J23, J29 J6, J7, 78 LD13324 FIGURE 82 - CONTROL BOARD I/O LOCATIONS JOHNSON CONTROLS...

  • Page 202: Table 49 - Control Board I/O Locations

    Disc Press Sys A - 5VDC 141/RED Disc Press Sys A - Common 140/BLK Disc Press Sys A - Input 139/WNT Disc Press Sys B - 5VDC 147/RED Disc Press Sys B - Common 146/BLK Disc Press Sys B - Input 145/WHT JOHNSON CONTROLS...
  • Page 203 105/WHT Piezometer Ring CTB1 PIEZ Piezometer Ring CTB1 PIEZ Pump Output CTB1 PUMP/ISO DMP FIELD Pump Output CTB1 PUMP/ISO DMP FIELD Return Air RH - 5VDC 133/RED Return Air RH - Common 135/BLK Return Air RH Input 134/WHT JOHNSON CONTROLS...
  • Page 204 Water Econ Valve Act - Common ACU5 210/BLK Water Econ Valve Act - VDC ACU5 209/WHT Water Econ Valve Act / 24VAC ACU5 208/RED Zone Temp Input CTB1 ZONE TEMP FIELD Zone Temp Input CTB1 ZONE TEMP FIELD JOHNSON CONTROLS...

  • Page 205: Table 50 - Warning Description Table

    UNIT TYPE is Underfloor Air Humidity is less than Wrn-Under Floor FLEXSYS and Dew 5% for greater than or equal to 5 Auto Reset Alarm Rh Sensor Point Reset is USER minutes ENABLED * Can be A-F compressors. JOHNSON CONTROLS...

  • Page 206: Table 51 - Fault Auto - Reset

    TYPE is set to CV Alarm Temp Sensor Reset the unit goes UNOCCUPIED, a fault be- and the CONTROL comes active and prevents the unit from METHOD is set to starting. ZONE SENSOR HARDWIRED * Can be A-F compressors. JOHNSON CONTROLS...

  • Page 207: Table 52 - Faults Lockout

    “LOCKOUT-COMPRESSOR SYSTEM * TIME OUT” – If the “COMPR STATUS CLEAR TIME *” timer reaches 60 minutes a “LOCKOUT - COMPRESSOR SYSTEM * TIME OUT” is indicated in the HISTORY buffer. See page 13 for minimum CFM setpoints to assure closure of the supply fan proving switch. JOHNSON CONTROLS...

  • Page 208: Multi Media Card

    The subdirectory for this day would be identified as 20050111.csv, the year followed by the month, followed by the day. Each of these files con- tains all the data monitored for the day specified by the file name. JOHNSON CONTROLS...

  • Page 209: Table 53 - Data Log Error State

    Open a file Is a directory Write a file Invalid argument Delete a file Too many open files in system Close a file File too large No space left on device Illegal seek Read-only file system File name too long JOHNSON CONTROLS...
  • Page 210 © 2019 Johnson Controls | 100 JCI Way, York, Pennsylvania USA 17406-8469 | www.johnsoncontrols.com Subject to change without notice. | Form: 145.05-NOM7 (1019) | Supersedes: 145.05-NOM7 (818) | All rights reserved.

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