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48FC Series
Carrier 48FC Series User Manual
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54
Main
Base
Board
(M
BB)
See
Fig.
29
and
T
abl
e
23.
The
maj
ori
ty
of
the
I/O
is
conne
ct
ed
to
the
MBB
whic
h
exec
utes
the
cont
rol
s
oper
at
ion
of
the
unit
from
the
sof
twar
e
tha
t
is
loa
ded
ont
o
it.
J1
J2
J3A
J3B
J3C
J3D
J3E
J4
J5
J6
J7
J8
J9
J10
TB5
J1
1
J12
J13
J14
TB4
J15
J16
J17
J20
J18
TB3
TB2
TB1
C150161
Fig.
29
-
-
Mai
n
Base
Board
(
MBB)
53
55
Table of Contents
Table of Contents
1
Safety Considerations
2
General
3
Conventions Used in this Manual
3
Basic Control Usage
3
Systemvu Control (Factory- -Installed Option)
3
Systemvu Interface
3
Accessory Navigatort Display
4
System Pilott and Touch Pilott Devices
5
CCN Tables and Display
5
Start-Up
6
Unit Preparation
6
Refrigerant Service Ports
6
Crankcase Heater
6
Compressor Rotation
6
Power Supply
6
Internal Wiring
6
Evaporator Fan
6
Condenser Fans and Motors
6
Return- -Air Filters
8
Outdoor- -Air Inlet Screens
8
Accessory Installation
8
Gas Heat (48FC and 48GC)
8
Controls Quick Set- -Up
8
Control Set Point and Confirmation Log
8
Initial Startup
8
Thermostat Control
9
Space Temperature Sensor Control - - Direct Wired (T- -55 or T- -56 or T- -59)
9
Space Humidistat Control
9
Space Relative Humidity Sensor Control
9
CCN Communication
9
CCN Linkage Control
9
System Pilott - - Communication Space Sensor
9
Accessories
9
Programming Operating Schedules
10
Service Test
10
Independent Outputs
10
Fan Test
10
Cooling Test
11
Heating Test
11
Automatic Test
11
Third Party Control
12
Cooling/Heating Control
12
Dehumidification Control
12
Remote Occupancy
12
Remote Shutdown
12
Alarm Output
12
Economizer Damper Control
12
Controls Operation
12
Display Configuration
12
Unit Configuration
12
General Operation
13
Demand Determination
13
Occupancy Determination
15
Indoor Fan Operation
16
Cooling Operation
16
Optional Humidi- -Mizer R Dehumidification System
17
Indoor Fan Based Dehumidification
21
Heating Operation
21
Supply Air Tempering
22
Two Position Damper Operation
22
Economizer Operation
22
Power Exhaust
24
Indoor Air Quality (IAQ)
25
Pre- -Occupancy Purge
26
Temperature Compensated Start
26
Linkage
26
Carrier Comfort Network R (CCN) Operation
26
Bacnet Network Operation
26
Alarm Handling
27
Troubleshooting
27
Complete Unit Stoppage
27
Restart Procedure
27
Faults and Alerts
27
Control Module Communication
34
Communication Failures
34
Cooling Troubleshooting
35
Humidi- -Mizer System Troubleshooting
36
Economizer Troubleshooting
37
Heating Troubleshooting
38
Phase Protection
41
Thermistor Troubleshooting
41
Sensor Trim
41
Transducer Troubleshooting
41
Major System Components
46
General
46
Main Base Board (MBB)
54
Integrated Gas Control (IGC) Board
56
Protective Devices
57
Space Mounted Sensors
57
Carrier Comfort Network R (CCN) Interface
59
APPENDIX A: Systemvut Controller Display
61
APPENDIX B: Systemvu Controller Text Point Reference
83
APPENDIX C: Navigatort Display
84
APPENDIX D: Systemvu Controller CCN Tables
95
APPENDIX E: Bacnet Points List
119
Control Set Point and Configuration Log
132
Unit Start-Up Checklist
143
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Carrier 48FC Series Specifications
General
Brand
Carrier
Model
48FC Series
Category
Air Conditioner
Language
English
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