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BAC-4000 series
KMC Controls BAC-4000 series User Manual
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I
nst
all
at
ion,
O
p
er
at
ion,
an
d
A
p
p
l
ication
Guid
e
for
A
p
p
Sta
t
™
BAC-4
00
0
s
e
ries
c
on
t
ro
l
l
e
rs
for
Fan
Co
il
Units,
Roof
Top
Un
its,
and
H
e
at
P
u
m
p
Un
i
t
s.
Revisi
on
G
2
Table of Contents
Contents
3
Table of Contents
3
Section 1: Introduction to the Appstat
8
Specifications
8
Installation Accessories
12
Appstat Model Numbers
13
Safety Considerations
16
Section 2: Installing the Appstat
17
Planning for Motion Sensing
17
Mounting the Appstat
18
Rough-In Preparation
19
Installing the Appstat
19
Connecting Inputs
20
Remote Space Temperature Sensor (Optional)
20
Discharge Air Temperature Sensor
21
Fan Status Switch (Optional)
21
Water Temperature Sensor
22
Outside Air Temperature
23
Connecting Outputs
24
Connecting to a Three-Speed Fan
24
Connecting to a Modulating Fan
25
Connecting On/Off Valves
26
Connecting to Modulating Valves
27
Connecting an Economizer
28
Connecting Power
28
Maintenance
29
Section 3: User Functions
31
Operating the Appstat
31
Entering a User Password
34
Changing the Active Setpoints
35
Setting the Operating Modes
36
Section 4: Commissioning Functions
39
Enter the Commissioning Mode
40
Setting the Commissioning Setpoints
41
Set up Communications
43
Set the Time and Date
45
Setting the Occupancy Schedule
47
Set Fan Coil Unit System Options
50
Set Roof Top Unit System Options
53
Set Heat Pump Unit System Options
56
Advanced Options
60
Section 5: Sequences of Operation
65
Room Temperature Setpoints
66
Types of Setpoints
66
Setpoint Limits
67
Occupancy, Motion Sensing, and Standby
67
Automatic Cooling and Heating Changeover
68
Scheduling Occupancy
68
Dehumidification Sequence
68
Fan Status
68
Display Blanking and Backlight
69
Temperature Sensing Inputs
69
Space Temperature Sensing
69
Outside Air Temperature Sensing
69
Water Temperature Sensor
69
Discharge Air Temperature Sensor
70
PID Control Loops
70
Valve Operation for Fan Coil Units
70
On/Off Valves
70
Modulating Valves
71
Two-Pipe Water Supply Temperature Evaluation
71
Electric Heat for Fan Coil Units
72
Fan Operation for Fan Coil Units
72
One, Two, and Three Speed Fans
72
Modulating Fans
72
Automatic Fan Control
73
Modulating Cooling and Heating for Roof Top Units
73
Cooling
73
Heating
73
Valve Action
73
Staged Heating and Cooling for for Roof Top and Heat Pump Units
74
Staged Cooling
74
Staged Heating
74
Fan Control for Roof Top and Heat Pump Units
74
Economizer Cooling for Roof Top and Heat Pump Units
75
Heat Pump Unit Specific Functions
75
Reversing Valve Action
75
Auxiliary or Emergency Heat Action
75
Section 6: Application Drawings
77
Fan Coil Unit Applications
78
Fan Coil Unit-Four-Pipe with Three-Speed Fan and On/Off Valves
78
Fan Coil Unit-Four-Pipe with Three-Speed Fan and Modulating Valves
80
Fan Coil Unit-Four-Pipe with Modulating Fan and On/Off Valves
82
Fan Coil Unit-Four-Pipe with Modulating Fan and Modulating Valves
84
Fan Coil Unit-Two-Pipe with Three-Speed Fan and On/Off Valves
86
Fan Coil Unit-Two-Pipe with Three-Speed Fan and Modulating Valve
88
Fan Coil Unit-Two-Pipe with Modulating Fan and On/Off Valve
90
Fan Coil Unit-Two-Pipe with Modulating Fan and Modulating Valve
92
Fan Coil Unit-Two-Pipe with Three-Speed Fan, Modulating Valve, and Electric Heat
94
Fan Coil Unit-Two-Pipe with Modulating Speed Fan, Modulating Valve, and Electric Heat
96
Roof Top Unit Applications
98
Roof Top Unit-Two-Stage Gas Heat and Two-Stage DX Cooling
98
Roof Top Unit-Two-Stage Gas Heat and Two-Stage DX Cooling with Economizer
100
Roof Top Unit-Cooling and Heating with Modulating Valves and Economizer
102
Roof Top Unit-Two-Stage Gas Heat, Chilled Water Cooling with Modulating Valve and Economizer
104
Roof Top Unit-Two-Stage DX Cooling, Hot Water Heating with Economizer
106
Heat Pump Unit Applications
108
Heat Pump Unit-Three Heat, Two Cool
108
Heat Pump Unit-Three Heat, Two Cool and Economizer
110
Section 7: System Integration
113
Bacnet Objects
114
Input Objects
114
Output Objects
115
Value Objects
117
Schedule Object
119
Loop Objects
119
Connecting to an MS/TP Network
121
Index
125
4
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KMC Controls BAC-4000 series Specifications
General
Brand
KMC Controls
Model
BAC-4000 series
Category
Controller
Language
English
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