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Johnson Controls LSWU User Manual
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JOHNSON CONTROLS
28
FORM 145.05-NOM7
ISSUE DA
TE: 10/31/2019
SECTION 2 – INST
ALLA
TION
90.00 REF
35.00 REF
100.00 REF
TOP VIEW
LIFTING POINT
LIFTING POINT
LIFTING POINT
LIFTING POINT
SHIPPING TIMBERS
LIFTING POINTS
LIFTING POINTS
LD21638
FIGURE 17 -
LIFTING RECOMMENDA
TIONS, COIL
SECTION ONL
Y (LSW_050–060)
27
29
Table of Contents
General Safety Guidelines
2
Changeability of this Document
3
Change Bars
3
Associated Literature
3
Nomenclature
4
Table of Contents
5
Section 1 - Introduction
10
About this Manual
10
Description of Unit
10
TABLE 1 - Acronym Chart
10
Section 2 - Installation
11
Approvals
11
Limitations
11
Unit Inspection
11
TABLE 2 - Voltage Limitations
11
TABLE 3 - Operating Limitations
11
TABLE 4 - LSWU/LSWD/LSWF Minimum CFM
11
Location and Clearances
12
FIGURE 1 - Caution Label
12
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 Plenum
15
FIGURE 6 - Recommended Service and Maintenance Clearance with Sound Attenuating Plenum
16
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 Plenum
19
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 Handling
22
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 Label
26
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 Weights
36
Factory-Supplied Plenum
37
TABLE 7 - Supply Fan Variable Frequency Drive Weights
37
TABLE 8 - Operating Weights (LSW_070-LSW_105)
38
Segmented Unit Assembly
39
Remove Shipping Restraints
39
FIGURE 25 - Shipping Restraint Locations
39
Physical Data
40
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_025-060
43
Dimensions
45
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 Data
74
Field Wiring
75
Bacnet Communication
75
Pump Start Output
76
Alarm Contacts
76
Isolation Damper Control
76
CTB1 Field Control Wiring (Inputs)
76
FIGURE 55 - CTB1 Field Control Wiring
77
Phase Monitor
78
Ducting
78
Water Piping
78
FIGURE 56 - Condenser Connections
79
Static Pressure Transducer Installation (VAV Units Only)
81
FIGURE 57 - Condenser Trap
81
Static Pressure Transducer Installation (Flexsys ™ Units Only)
82
FIGURE 59 - Duct Static Transducer Locations
82
FIGURE 58 - Duct Static Transducer Location
82
Duct High Pressure Safety Switch
83
Dirty Filter Switch
83
Static Pressure Transducer Installation (Flexsys ™ 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
Pre-Startup Requirements
87
Unit Checks - Power Applied
88
Initial Start-Up
88
TABLE 12 - Setscrew Torques
88
TABLE 13 - R410-A Pressure / Temperature Chart
90
Section 4 - Maintenance
91
General
91
Periodic Maintenance - Monthly
91
TABLE 14 - Fan Bearing - Lubrication Intervals
91
Periodic Maintenance - Three to Six Months
92
Periodic Maintenance - Yearly
92
TABLE 15 - Belt Tension Data
92
FIGURE 60 - Sheave Alignment
93
FIGURE 61 - Belt Tensioning Gauge
93
Water Pressure Drop Tables
96
TABLE 16 - Condenser Water Pressure Drop (LSW_025-040), Feet of W.C
96
TABLE 17 - Condenser Water Pressure Drop (LSW_050-060), Feet of W.C
97
TABLE 18 - Condenser Water Pressure Drop (LSW_070-105), Feet of W.C
97
TABLE 35 - Condenser
97
Determining Water Flow (Condenser Only)
98
Determining Water Flow (Waterside Economizer Active)
98
Section 5 - Sequence of Operation
99
Unit Type
99
Constant Volume (CV) Mode Operation
99
FIGURE 62 - Constant Volume Setpoint Determination
101
TABLE 19 - Active SAT Setpoint Determination, Zone Temperature
102
Variable Air Volume (VAV) Mode Operation
103
FIGURE 63 - Active DSP Setpoint Vs. Duct Static Pres RST Voltage
104
FIGURE 64 - Supply Fan VFD Frequency
105
TABLE 20 - Piezometer Airflow Measurements
106
FIGURE 65 - Active SAT Setpoint Vs. Supply Air Temp RST Voltage
110
FIGURE 66 - Active SAT Setpoint Vs. Outside Air Temp
110
FIGURE 67 - Active SAT Setpoint Vs. Supply Fan Speed
110
Compressor Control and Sequencing
111
FIGURE 68 - Active SAT Setpoint Vs. Return Air Temp
111
TABLE 21 - System a Compressor Capacity (25-60 Ton)
111
FIGURE 69 - System a Compressor at 1/3 Capacity
112
FIGURE 70 - System a Compressor at 2/3 Capacity
112
FIGURE 71 - System a Compressor at Full Capacity
112
Compressor Operation
114
TABLE 22 - Compressor Status Priority Level
115
TABLE 23 - Compressor Safeties
116
Water Cooled Condenser Operations
119
FIGURE 72 - Condenser Only Piping Diagram with no Valves from the Factory
119
FIGURE 73 - Condenser and Piping Diagram W/ Condenser Only Valve from the Factory
120
FIGURE 74 - Cond Water Valve Vs. Condenser Pressure PI Output
121
FIGURE 75 - Condenser Operation and Piping Diagram W/ Condenser and Bypass Valves
121
FIGURE 76 - Bypass Valve Position Vs. Cond Water Valve Position
122
Waterside or Air Economizer Operation
123
FIGURE 77 - Condenser and Water Economizer Valve Operation and Piping Diagram
123
FIGURE 78 - Waterside Economizer Actions
124
Heat Operations
134
Table 24 - Cfm
134
TABLE 25 - Heat Stages
134
Ventilation System
137
Dirty Filter Switch
138
Flexsys Operation
138
TABLE 26 - Supply Air Density from Temperature and Altitude
142
Section 6 - User Interface Control Center
143
User Interface Control Center
143
FIGURE 79 - User Interface Control Panel
143
TABLE 27 - Status
145
TABLE 28 - Unit Data
146
TABLE 29 - Cooling
147
TABLE 30 - Compressor Systems (A-F)
148
TABLE 31 - Supply System
149
TABLE 32 - Heating
150
TABLE 33 - Economizer
151
TABLE 34 - Ventilation
152
Setpoints
153
TABLE 36 - Setpoints
153
Program
155
TABLE 37 - Program
155
Options
157
TABLE 38 - Options
157
Date / Time
158
Schedule
158
Operating Hours / Start Counter
159
TABLE 39 - Operating Hours / Start Counter
159
Printer
160
Service
161
TABLE 40 - Service
161
History
167
TABLE 41 - History Key Sequence
167
Password
168
Power up Banner
169
Communication
169
FIGURE 80 - IPU Control Board
170
FIGURE 81 - MAC Address Switches
171
Table 42 - Bacnet Ms/Tp, Modbus, Bacnet Ip
172
Section 7 - Parameter Descriptions and Options
183
TABLE 43 - Definitions
183
Section 8 - Service
195
Analog Input Operation
195
TABLE 44 - Temperature Sensor Resistance
196
TABLE 45 - Duct Pressure Transducer
196
TABLE 46 - Pressure Transducers
196
TABLE 47 - Humidity Sensor Outputs
197
TABLE 48 - Discharge Thermistor Temperature / Resistance
197
Digital Compressor Controller Fault Codes
198
Faults
199
FIGURE 82 - Control Board I/O Locations
201
TABLE 49 - Control Board I/O Locations
202
TABLE 50 - Warning Description Table
205
TABLE 51 - Fault Auto - Reset
206
TABLE 52 - Faults Lockout
207
Multi Media Card
208
TABLE 53 - Data Log Error State
209
TABLE 54 - Data Log Error Log Detail
209
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Johnson Controls LSWU Specifications
General
Brand
Johnson Controls
Model
LSWU
Category
Chiller
Language
English
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