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IntelliPak SCWF 20
Trane IntelliPak SCWF 20 User Manual
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SCXF-SVX01Q-EN
25
Figure
6.
42
to
80
ton
self-contained
N
N
o
ot
t
e
e
s
s
:
:
1.
All
unit
weights
include
refrigerant,
water,
controllers,
electric
heat
and
valves.
2.
Add
150
lbs.
to
total
weight
to
obtain
approximate
shipping
weight.
D
D
i
i
m
m
e
e
n
n
s
s
i
i
o
o
n
n
a
a
l
l
D
D
a
a
t
t
a
a
24
26
Table of Contents
Default Chapter
2
Important Environmental Concerns
2
Important Responsible Refrigerant Practices
2
Table of Contents
4
Overview
8
R-410A Compressors
8
Signature Series Self-Contained Unit
8
Components
8
Standard Controls
9
Human Interface Panel
9
Unit Control Module
9
Optional Controls
10
Unit Nameplate
10
Model Number Description
11
Commercial Self-Contained Signature
11
Series
11
Commercial Self-Contained Air-Cooled
13
Condenser
13
General Data
14
Pre-Installation
21
Receiving
21
Receiving Checklist
21
Responsibilities
21
Unit Inspection
21
Unpacking
22
Unit Protective Covers
23
Supply Fan Isolators
23
Dimensional Data
24
Steam and Hot Water Coils
28
Steam Coils
28
Hot Water Coils
28
Plenum
29
Filters
29
Airside Economizer
30
Service Clearances
31
Weights
32
Installation - Mechanical
34
Unit Handling
34
Installation Preparation
35
Unit Vibration Isolator Option
35
Procedure
35
Duct Connections
36
Installing the Plenum
36
Installing the Airside Economizer
37
Water Piping
38
Condenser Connections
38
Condensate Drain Connections
38
General Waterside
39
Towers
39
Waterside Piping Arrangements
39
Water Temperature
39
Requirements
39
Water Piping Verification
39
Installating the Hydronic Coil
39
Steam and Hot Water Coil
39
Refrigerant System
40
Interconnecting Piping
40
Charging
41
Installation - Electrical
43
Unit Wiring Diagrams
43
Supply Power Wiring
43
Voltage Range
43
Voltage Imbalance
43
Phase Monitor
43
Control Power
43
Selection Procedures
44
Static Pressure Transducer Installation
45
(VAV Units Only)
45
Transducer Location
45
Installing the Transducer
46
Zone Sensor Options for Control
46
Units
46
Standard with All Units
46
Baysens077
47
CV Unit Zone Sensor Options
47
Cvand VAV Applications
47
Integrated Comfort Systems Sensors for CV and VAV Applications
47
Options
47
Zone Sensor Installation
48
Mounting Location
48
Mounting the Subbase
48
Wiring
49
Standard Remote Sensor
49
(Baysens077)
49
Programmable Zone Sensors
49
Baysens119
49
Time Clock Option
50
Grasslin Time Clock Option
50
Installing the Time Clock
50
Surface Mounting Inside Panel
50
Wiring the Time Clock
50
Remote Human Interface Panel
50
Installation
50
Human Interface (HI) Panel
50
Remote Human Interface Panel
51
Location Recommendations
51
Ambient Temperature and Humidity
51
Limits
51
Mounting the Remote Human Interface
51
(RHI) Panel
51
Procedure
51
Wall Mounting the RHI Panel
52
Wiring the Remote Human Interface
53
Low Voltage (AC) Field Wiring
54
Connections
54
Interprocessor Communication
54
Bridge Module Wiring
54
Communication Link
54
Twisted Pair) Wiring
54
At the Self-Contained Unit
54
Option
55
Connecting to Tracer Summit
55
Communication Wiring
55
Programming the Time Clock
55
Setting the Time Clock
55
Reviewing and Changing
56
Programs
56
Manual Override
56
Operating Principles
57
Control Sequences of Operation
57
Occupied/Unoccupied
57
Switching
57
Field-Supplied Occupied/Unoccupied Input on the RTM
57
Tracer Summit System
57
Factory-Mounted Time Clock
57
Unoccupied Sequence of Operation
57
Morning Warm-Up
57
Full Capacity Morning Warm-Up
57
Ics
58
Timed Override Activation-Non
58
VAV Drive Max Output
58
Occupied Sequence
58
Occupied Zone Temperature
58
Cooling
58
Zone Temperature Control (Unit Model Number Digit 9 = 4 or 5)
58
Supply Air Temperature Control
58
Units with Economizer
59
Cooling/Waterside Economizer
59
Cooling/Airside Economizer
59
Mechanical Cooling
59
Air-Cooled Units Only
59
Water-Cooled Units Only
59
Auto Changeover
59
Only)
59
Occupied Zone Temperature
59
Heating
59
Supply Air Setpoint Reset
60
Only)
60
Reset Based on Outdoor
60
Airtemperature
60
Reset Based on Zone Temperature
60
Supply Airtempering
60
And Steam VAV Units Only)
60
Daytime Warm-Up
60
Changeover
60
Thermostatic Expansion Valve
60
Compressor Cycling
61
Compressor Lead/Lag
61
Operation
61
Step Control
61
Compressor Safety Devices
62
Low Ambient Compressor
62
Lockout
62
Evaporator Coil Frost Protection
62
Frostat
62
Service Valve Option
63
Waterside Components
63
Water Purge
63
Water Piping Options
63
Basic Water Piping
63
Intermediate Water Piping
63
Water Flow Switch Option
63
Water-Cooled Condensers
63
Waterside Economizer Option
63
Control
64
Constant Water Flow with Intermediate Piping
64
Variable Water Flow with Intermediate Piping
64
Unit Airside Components
65
Supply Air Fan
65
Low Entering Air Temperature
65
Sensor
65
Thermostat
65
Dirty Filter Sensor Option
65
Low Ambient Sensor
65
Units)
65
Supply Air Static Pressure Limit
65
Variable Frequency Drive
65
VFD with Bypass
66
Airside Economizer Option
66
Comparative Enthalpy Control
66
Airside Economizers with Traq
66
Damper
66
Standard Two-Position Damper
67
Interface
67
Airside Economizer Interface
67
Airside Economizer Interface with
67
Comparative Enthalpy
67
Air-Cooled Condensers
67
Controls
68
Points List
68
RTM Module
68
GBAS Module
68
ECEM Module
68
BCI-I Option
68
LCI-I Points List
68
Phase Monitor
68
Unit Control Components
68
RTM Module Board-Standard on All
69
Units
69
Compressor Module
71
Human Interface Module-Standard
71
On All Units
71
Remote Human Interface Module
71
Waterside Module-Standard on All
71
Water-Cooled Units
71
Heat Module
71
Ventilation Override Module (VOM)
71
Trane Communications
72
Modules
72
Module
73
Ventilation Control Module
73
(VCM)
73
System Module Option
73
Input Devices and System
75
Functions
75
Pre-Startup
79
Units with VFD
79
Pre-Startup Checklist
79
Supply Fan
79
Ductwork
79
Water-Cooled Unit Piping
79
Air-Cooled Units Only
79
Units with Hydronic Heat
80
Units with Electric Heat
80
Electrical
80
Components
80
Startup
81
Air-Cooled Only
81
Final Refrigerant Charge
82
Startup Procedure
83
Operating & Programming
83
Instructions
83
Startup Log
83
Maintenance
85
Service Access
85
Variable Frequency Drive (VFD)
85
Air Filters
85
Inspecting and Cleaning the Drain
86
Pan
86
Inspecting and Cleaning the Fan
87
Supply Fan
87
Fan Drive
87
Fan Bearings
88
Fan Belt Tension
88
Measuring Belt Tension
88
Adjusting Belt Tension
89
Compressors
91
Scroll Compressor Failure Diagnosis
91
And Replacement
91
Ton Air-Cooled Compressor Suction Restrictor Replacement
91
Refrigerant System
92
Refrigerant Leak Test Procedure
92
Brazing Procedures
93
System Evacuation Procedures
93
Compressors
95
Scroll Compressor Failure Diagnosis
95
And Replacement
95
Components
96
Cleaning Coil Fin
97
Inspecting and Cleaning Coils
97
Steam and Hot Water Coils
97
Refrigerant Coils
98
Draining the Waterside Economizer
98
Coil
98
Cleaning the Condenser
98
Chemical Cleaning of Condenser and Economizer Coil
99
Piping Components
99
Water Valves
99
Flow Switch
99
Maintenance Periodic Checklists
99
Monthly Checklist
99
Semi-Annual Maintenance
100
Annual Maintenance
100
Diagnostics
101
Troubleshooting
101
System Checks
101
Additional Diagnostic Resources
102
Emergency Stop
103
Wiring Diagrams
115
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Trane IntelliPak SCWF 20 Specifications
General
Brand
Trane
Model
IntelliPak SCWF 20
Category
Air Conditioner
Language
English
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