Name: Johnson Controls LSWU
Brand: Johnson Controls
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JOHNSON CONTROLS

FORM 145.05-NOM7

ISSUE DATE: 10/31/2019

SECTION 2 – INSTALLATION

LD14351

STD DIA 1.25 NOM PVC SOCKET

(TO CONNECT METAL PIPE, PLASTIC

WELD ONE UNIVERSAL PN 478-012

SPIGOT FEMALE ADAPTER

11.24

43.08

52.88

44.00

102.00

130.00

44.00

52.79

.88

2.50

6.25

5.25

39.80

42.30

34.80

1.38

52.00

FRONT VIEWFRONT VIEW

TO COIL SECTION

ELECTRICAL PENETRATIONS

TO FAN SECTION

REAR

RIGHT

LEFT

DRAIN CONNECTION

3.78

COIL SECTIONFAN SECTION

2.95

RIGHT

LEFT

FIGURE 43 - UNIT DIMENSIONS, FRONT DISCHARGE, SEGMENTED (LSWF 070–105)

NOTE

1. Filter section is not shown and will be shipped separately.

2. Due to the dedication of continuous product improvement and enhancements, the information/dimensions provided are subject to

change without notice.

General Safety Guidelines2
Changeability of this Document3
Change Bars3
Associated Literature3
Nomenclature4
Table of Contents5
Section 1 - Introduction10
About this Manual10
Description of Unit10
TABLE 1 - Acronym Chart10
Section 2 - Installation11
Approvals11
Limitations11
Unit Inspection11
TABLE 2 - Voltage Limitations11
TABLE 3 - Operating Limitations11
TABLE 4 - LSWU/LSWD/LSWF Minimum CFM11
Location and Clearances12
FIGURE 1 - Caution Label12
FIGURE 2 - Recommended Service and Maintenance Clearance, Top Discharge (LSW_025-040)12
FIGURE 3 - Recommended Service and Maintenance Clearance, Top Discharge(LSW_050-060)13
FIGURE 4 - Recommended Service and Maintenance Clearance, Top Discharge (LSW_070-105)14
FIGURE 5 - Recommended Service and Maintenance Clearance with Sound Attenuating Plenum15
FIGURE 6 - Recommended Service and Maintenance Clearance with Sound Attenuating Plenum16
FIGURE 7 - Recommended Service and Maintenance Clearance with Airside Economizer (LSW_025-040)17
FIGURE 8 - Recommended Service and Maintenance Clearance, Front Discharge (LSW_070-105)18
FIGURE 9 - Recommended Service and Maintenance Clearance with Sound Attenuating Plenum19
FIGURE 10 - Recommended Service and Maintenance Clearance with Airside Economizer (LSW_050-060)20
FIGURE 11 - Recommended Service and Maintenance Clearance with Airside Economizer (LSW_070-105)21
Rigging and Unit Handling22
FIGURE 12 - Vibration Isolation Pad Locations (LSW_025-040)23
FIGURE 13 - Vibration Isolation Pad Locations (LSW_050-060)24
FIGURE 14 - Vibration Isolation Pad Locations (LSW_070-105)25
FIGURE 15 - Warning Label26
FIGURE 16 - Lifting Recommendations, Coil Section Only (LSW_025-040)27
FIGURE 17 - Lifting Recommendations, Coil Section Only (LSW_050-060)28
FIGURE 18 - Lifting Recommendations, Coil Section Only (LSW_070-105)29
FIGURE 19 - Lifting Recommendations, Fan Section Only (LSW_025-040)30
FIGURE 20 - Lifting Recommendations, Fan Section Only (LSW_050-060)31
FIGURE 21 - Lifting Recommendations, Fan Section Only (LSW_070-105)32
FIGURE 22 - Lifting Recommendations, Fan and Coil Section Combined (LSW_025-040)33
FIGURE 23 - Lifting Recommendations, Fan and Coil Section Combined (LSW_050-060)34
FIGURE 24 - Lifting Recommendations, Fan and Coil Section Combined (LSW_070-105)35
TABLE 5 - Operating Weights (LSW_025-060)36
TABLE 6 - Supply Fan Motor Weights36
Factory-Supplied Plenum37
TABLE 7 - Supply Fan Variable Frequency Drive Weights37
TABLE 8 - Operating Weights (LSW_070-LSW_105)38
Segmented Unit Assembly39
Remove Shipping Restraints39
FIGURE 25 - Shipping Restraint Locations39
Physical Data40
TABLE 9 - Water-Cooled Self-Contained Unit Data (LSW_025-060)41
TABLE 10 - Water-Cooled Self-Contained Unit Data (LSW_070-105)41
TABLE 11 - Electric Heat for LSW_025-06043
Dimensions45
FIGURE 26 - Unit Dimensions, Top Discharge Assembled (LSWU 025-040)45
FIGURE 27 - Unit Dimensions, Top Discharge, Assembled (LSWU 050-060)46
FIGURE 28 - Unit Dimensions, Top Discharge, Assembled (LSWU 070-105)47
FIGURE 29 - Unit Dimensions, Front Discharge, Assembled (LSWF 050-060)48
FIGURE 30 - Unit Dimensions, Top Discharge, Segmented (LSWU_025-040)49
FIGURE 31 - Unit Dimensions, Top Discharge, Segmented (LSWU 050-060)50
FIGURE 32 - Unit Dimensions, Top Discharge, Segmented (LSWU 070-105)51
FIGURE 33 - Unit Dimensions, Front Discharge, Segmented (LSW_050-060)52
FIGURE 34 - Unit Dimensions, Front Discharge, Assembled (LSW_025-040)53
FIGURE 35 - Unit Dimensions, Front Discharge, Segmented (LSW_025-040)54
FIGURE 36 - Unit Dimensions, down Flow, Assembled (LSW_050-060)55
FIGURE 37 - Unit Dimensions, down Flow, Segmented (LSW_050-060)56
FIGURE 38 - Bypass Plenum for down Flow, Segmented (LSW_050-060)57
FIGURE 39 - Unit Dimensions, down Flow, Assembled (LSW_050-060)58
FIGURE 40 - Unit Dimensions, down Flow, Segemented (LSW_025-040)59
FIGURE 41 - Bypass Plenum for down Flow, Segemented (LSW_025-040)60
FIGURE 42 - Unit Dimensions Front Discharge, Assembled (LSWF 070-105)61
FIGURE 43 - Unit Dimensions, Front Discharge, Segmented (LSWF 070-105)62
FIGURE 44 - Half Outlet Plenum Option (LSWU 025-040)63
FIGURE 45 - Half Outlet Plenum Option (LSWU 050-060)64
FIGURE 46 - Full Outlet Plenum Option (LSWU 025-040)65
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
FIGURE 52 - Unit Dimensions Airside Economizer Option (LSW_025-040)71
FIGURE 53 - Unit Dimensions Airside Economizer Option (LSW_050-060)72
FIGURE 54 - Unit Dimensions Airside Economizer Option (LSW_070-105)73
Electrical Data74
Field Wiring75
Bacnet Communication75
Pump Start Output76
Alarm Contacts76
Isolation Damper Control76
CTB1 Field Control Wiring (Inputs)76
FIGURE 55 - CTB1 Field Control Wiring77
Phase Monitor78
Ducting78
Water Piping78
FIGURE 56 - Condenser Connections79
Static Pressure Transducer Installation (VAV Units Only)81
FIGURE 57 - Condenser Trap81
Static Pressure Transducer Installation (Flexsys ™ Units Only)82
FIGURE 59 - Duct Static Transducer Locations82
FIGURE 58 - Duct Static Transducer Location82
Duct High Pressure Safety Switch83
Dirty Filter Switch83
Static Pressure Transducer Installation (Flexsys ™ Units Only)83
Return, Outdoor, Supply Air, and Mixed Air Sensors84
Steam Heat84
Hot Water Heat85
Electric Heat85
Filters85
Section 3 - Start-Up87
Crankcase Heaters87
Pre-Startup Requirements87
Unit Checks - Power Applied88
Initial Start-Up88
TABLE 12 - Setscrew Torques88
TABLE 13 - R410-A Pressure / Temperature Chart90
Section 4 - Maintenance91
General91
Periodic Maintenance - Monthly91
TABLE 14 - Fan Bearing - Lubrication Intervals91
Periodic Maintenance - Three to Six Months92
Periodic Maintenance - Yearly92
TABLE 15 - Belt Tension Data92
FIGURE 60 - Sheave Alignment93
FIGURE 61 - Belt Tensioning Gauge93
Water Pressure Drop Tables96
TABLE 16 - Condenser Water Pressure Drop (LSW_025-040), Feet of W.C96
TABLE 17 - Condenser Water Pressure Drop (LSW_050-060), Feet of W.C97
TABLE 18 - Condenser Water Pressure Drop (LSW_070-105), Feet of W.C97
TABLE 35 - Condenser97
Determining Water Flow (Condenser Only)98
Determining Water Flow (Waterside Economizer Active)98
Section 5 - Sequence of Operation99
Unit Type99
Constant Volume (CV) Mode Operation99
FIGURE 62 - Constant Volume Setpoint Determination101
TABLE 19 - Active SAT Setpoint Determination, Zone Temperature102
Variable Air Volume (VAV) Mode Operation103
FIGURE 63 - Active DSP Setpoint Vs. Duct Static Pres RST Voltage104
FIGURE 64 - Supply Fan VFD Frequency105
TABLE 20 - Piezometer Airflow Measurements106
FIGURE 65 - Active SAT Setpoint Vs. Supply Air Temp RST Voltage110
FIGURE 66 - Active SAT Setpoint Vs. Outside Air Temp110
FIGURE 67 - Active SAT Setpoint Vs. Supply Fan Speed110
Compressor Control and Sequencing111
FIGURE 68 - Active SAT Setpoint Vs. Return Air Temp111
TABLE 21 - System a Compressor Capacity (25-60 Ton)111
FIGURE 69 - System a Compressor at 1/3 Capacity112
FIGURE 70 - System a Compressor at 2/3 Capacity112
FIGURE 71 - System a Compressor at Full Capacity112
Compressor Operation114
TABLE 22 - Compressor Status Priority Level115
TABLE 23 - Compressor Safeties116
Water Cooled Condenser Operations119
FIGURE 72 - Condenser Only Piping Diagram with no Valves from the Factory119
FIGURE 73 - Condenser and Piping Diagram W/ Condenser Only Valve from the Factory120
FIGURE 74 - Cond Water Valve Vs. Condenser Pressure PI Output121
FIGURE 75 - Condenser Operation and Piping Diagram W/ Condenser and Bypass Valves121
FIGURE 76 - Bypass Valve Position Vs. Cond Water Valve Position122
Waterside or Air Economizer Operation123
FIGURE 77 - Condenser and Water Economizer Valve Operation and Piping Diagram123
FIGURE 78 - Waterside Economizer Actions124
Heat Operations134
Table 24 - Cfm134
TABLE 25 - Heat Stages134
Ventilation System137
Dirty Filter Switch138
Flexsys Operation138
TABLE 26 - Supply Air Density from Temperature and Altitude142
Section 6 - User Interface Control Center143
User Interface Control Center143
FIGURE 79 - User Interface Control Panel143
TABLE 27 - Status145
TABLE 28 - Unit Data146
TABLE 29 - Cooling147
TABLE 30 - Compressor Systems (A-F)148
TABLE 31 - Supply System149
TABLE 32 - Heating150
TABLE 33 - Economizer151
TABLE 34 - Ventilation152
Setpoints153
TABLE 36 - Setpoints153
Program155
TABLE 37 - Program155
Options157
TABLE 38 - Options157
Date / Time158
Schedule158
Operating Hours / Start Counter159
TABLE 39 - Operating Hours / Start Counter159
Printer160
Service161
TABLE 40 - Service161
History167
TABLE 41 - History Key Sequence167
Password168
Power up Banner169
Communication169
FIGURE 80 - IPU Control Board170
FIGURE 81 - MAC Address Switches171
Table 42 - Bacnet Ms/Tp, Modbus, Bacnet Ip172
Section 7 - Parameter Descriptions and Options183
TABLE 43 - Definitions183
Section 8 - Service195
Analog Input Operation195
TABLE 44 - Temperature Sensor Resistance196
TABLE 45 - Duct Pressure Transducer196
TABLE 46 - Pressure Transducers196
TABLE 47 - Humidity Sensor Outputs197
TABLE 48 - Discharge Thermistor Temperature / Resistance197
Digital Compressor Controller Fault Codes198
Faults199
FIGURE 82 - Control Board I/O Locations201
TABLE 49 - Control Board I/O Locations202
TABLE 50 - Warning Description Table205
TABLE 51 - Fault Auto - Reset206
TABLE 52 - Faults Lockout207
Multi Media Card208
TABLE 53 - Data Log Error State209
TABLE 54 - Data Log Error Log Detail209

Johnson Controls LSWU User Manual

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Brand	Johnson Controls
Model	LSWU
Category	Chiller
Language	English