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EngA CenCon User Manual
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CenCon
12
ECON
OMIZER
CENCON
ANALOG
I/O
ANALOG I/O
CENCON
MEc
7.2 V
MHW
0.0 V
MCW
0.0
V
MSp
0.0 V
IAQ
0.0 V
RPM
0.0 V
HuO
0.0 V
HR +/
-
0.0 V
FbD
0.0 V
ASP
0.0 V
W +/
-
0.0 V
Y +/
-
0.0 V
CENCON
DIGITAL I
/O
DIGITAL
I/O
CENCON
SA
DM
AL
OLF
FbB
DES
FS
OCC
BAL
DhC
HEATIN
G ANALOG
I/O
ANALOG I/O
G
-
XM
MBV
4.41
V
CP
24.4 kΩ
FbG
4.39 V
MCA
3.74 V
FbA
3.71 V
HEATIN
G DIGITAL
I/O
DIGITAL I/O
G
-
XM
EnH
SR
CAS
FbV
FR
HL
PV
BFS
CB
ECONOMIZ
ER
CENCON
Mixed Air
59.3 °F
Discharge
53.8 °F
Ambient Air
72.5 °F
Return Air
75.8 °F
Min. Positi
on
20.0 %
Damper
34.5 %
11
13
Table of Contents
Table of Contents
4
General Overview
6
Hardware Information
6
Computer Connection
7
Keypad
10
Display Screens
11
Home Screen
11
Heating
11
Cooling
11
Economizer
12
Cencon Analog I/O
12
Cencon Digital I/O
12
Heating Analog I/O
12
Heating Digital I/O
12
Communication
13
Settings
13
Alarms
13
Terminal Description
14
Operation
15
Mode Selection
15
Occupied / Unoccupied
15
Fan Control
15
Variable Air Volume
15
Air Proving Switch
15
Warmup/Cooldown
15
Damper Control
16
Make up Air
16
Damper End Switch
16
Ambient Compensation
16
Economizer
16
Minimum Position
17
California Building Energy Efficiency
17
Title 24
17
High Ambient Lockout
17
Low Limit
17
Heating
17
Gas Fired Heating
18
Cooling
18
General Timing
18
Temperature Control
19
Room or Return Thermostat
19
Remote Setpoint
19
Bms Setpoint
19
Alarm Description
20
Alarm Reset
20
Wiring Concerns
21
Module Grounding
21
Communication Wiring
21
Communication Wire Grounding
22
Expansion Modules (XM)
23
J-XM
23
Basic Operation
24
Terminal Description
25
J-XM / CD-XM Timing
26
J-XM Combustion Setup
27
Gas Actuator Calibration
27
Combustion Offsets
27
Alarm Description
29
G-XM
30
Basic Operation
30
G-XM Timing
31
Terminal Description
31
G-XM Combustion Setup
32
Gas and Air Actuator Calibration
32
Combustion Offsets
32
Alarm Description
34
M-XM
35
Basic Operation
35
M-XM / P-XM Timing
35
Terminal Description
36
M-XM Burner Setup
37
Maxitrol Valve
37
Gas Actuator Calibration
37
Alarm Description
38
C-XM
39
Basic Operation
39
C-XM Timing
39
Terminal Description
40
Staged Compressors
41
Ambient Condenser Fans
41
Low Ambient Lockout
41
H-XM
42
Basic Operation
42
Terminal Description
42
High Ambient Lockout
43
S-XM
44
Basic Operation
44
S-XM Timing
44
Operation Notes
45
Terminal Description
45
Alarm Description
46
Er-XM
47
Basic Operation
47
Terminal Description
48
Alarm Description
48
CD-XM
49
Basic Operation
49
P-XM
50
Basic Operation
50
Appendix A - Thermistor Output Table
52
Appendix B - Maxitrol Valve Adjustments
53
Appendix C - Startup Checks
54
Appendix D - Service Issues
54
Cencon Specific
54
Read and Save Features
54
Communication Alarm
54
Erratic Behavior
54
Hard Reset Button
54
Miscellaneous
55
Combustion Analysis
55
Poor Pilot Sensing
55
Regulator Response
55
Water and Ice from Combustion
55
Manifold Pressure
55
Customer Installed Sensors
55
Speed Sensor - Dj
56
Top Loading
56
Air Balancing
56
Appendix E - DJ/DG Fuel Curve Development
57
Combustion Record - DJ
58
Combustion Record - DG
59
Combustion Record - HE
60
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EngA CenCon Specifications
General
Brand
EngA
Model
CenCon
Category
Controller
Language
English
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