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Prodigy 2.0
Lennox Prodigy 2.0 User Manual
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Page 24
T
able 1
1. Nu
mbe
r of C
omp
r
essors/F
ans
and
Fan Layo
u
t
BOX
Size
Fan Layout
Models
Compr
.
Fans
A BOX
LCH, LGH 36H, 48H and 60H
1 (2 step)
1
(variable)
LCH, LGH 36S, 48S, 60S and 72H
1
1
B BOX
LCH, LGH 090, 092U, 102, 120,
120U and 150
2
2
LCH, LGH 094U, 120U, 122U and
152U
2
3 (2 out
puts)
C1
BOX
LCH, LG-H 156
3
3 (2 out
puts)
C2
BOX
LCH, LGH 180
3
4
C3
BOX
LCH, LGH 210
3
6
LCH, LGH 240/300S
4
6
23
25
Table of Contents
Default Chapter
2
Table of Contents
2
1 Prodigy 2.0 M3 Unit Controller Description
6
Add-On Boards
6
2 Main Controller Operation
7
System Mode - Thermostat
7
Cooling Stages
7
Heating Stages
8
System Mode - Room Sensor Backup Mode Set Points
8
Network Control Panel
8
Room Sensor Back-Up Modes
8
Room Sensor Back-Up Mode Set Points
10
L Connection Network Back-Up Mode Requirements
11
Heating and Cooling Stages in Room Sensor Mode
11
Start-Up Delay in Room Sensor Mode
11
Blower Operation (Occupied) in Room Sensor Mode
11
Room Sensor Parameters
12
3 Unit Component Operation
16
Freeze-Stats (S49, S50, S53 and S95)
16
High Pressure Switches (S4, S7, S28 and S96) (Standard and High Efficient Units)
16
Thermal Protection Switches (S5, S8, S31 and S180)
16
Low Pressure Switches (S87, S88, S97 and S98)
17
Loss of Power Detection (Single-Phase Units Only)
17
Gas Units Burner Protection and Delays
17
Primary or Secondary Limits (S10 and S99)
17
Roll-Out Switch (S47 and S69)
17
Combustion Air Inducer Proof Switch (S18 and S45)
18
Gas Valve Sensor
19
Gas Heat Valve Delays
19
Thermostat Bounce Delay (Local Thermostat Mode Only)
19
Return Air Temperature Limits
19
Smoke Detector (A171 and A172 - Optional)
19
Safety Switch Input (A42-Optional)
20
Air Flow Proving Switch (S52 - Optional)
20
Dirty Filter Switch (S27- Optional)
20
Blower Overload Relay Switch (S42 - Optional)
20
Overflow Switch (S149 / S179 - Optional)
20
Blower On-Delay
20
Blower Off-Delay
20
Unoccupied or Night Setback Mode
21
Wired Thermostat Mode
21
Room Sensor Mode
21
Gas and Electric Heat Warm-Up Mode (During Occupied Time Period)
21
Cool-Down Delay (During Occupied Time Period)
21
Gas Heat Operation-Gas Units
21
Electric Heat Operation-Electric / Electric Units
22
Electric Heat Operation
22
Primary or Secondary Limits
22
4 Sensors
22
Temperature Sensors - Provided with Unit
22
Optional Room Sensor
22
Optional Relative Humidity Sensor
22
Optional Carbon Dioxide (Indoor Air Quality) Sensor
22
Optional Supply Static Pressure Sensor
23
Optional Enthalpy Sensor
23
Optional Economizer Differential Pressure Sensor
23
5 Low Ambient Fan Control (S11 and S84)
23
Other Units
23
6 Dehumidification Operation
26
Energence High Efficiency a
26
Standard Efficiency a and 6-Ton
26
Energence Ultra-High Efficiency B
26
Humiditrol Dehumidification Operation (Humiditrol Reheat)
26
Third-Party Digital Output to Control Dehumidification
28
Outside Air for Dehumidification
28
Selecting Minimum Low and Minimum High Damper Positions
29
Compressor and Humiditrol ® Operation
30
Economizer
30
7 Economizer
36
General
36
Damper Operations During Free Cooling
36
Enabling Economizer and Settings
37
Free Cooling Compressor Lockout Mode and Low Ambient Set Point
37
Outdoor Air Suitability for Free Cooling
37
Enthalpy Set Point
37
Free Cooling Damper Maximum Position
37
Damper Minimum Position
37
Motorized Outdoor Air Damper
37
Economizer Checkout
38
Demand Control Ventilation
40
General
40
Default Operation
40
Parameter Adjustments
41
8 Power Exhaust Operation
43
9 Supply Air Delivery
44
Blower Delays
44
Gas / Electric Units
44
Electric / Electric Units
44
Cooling Operation
44
Supply Constant Air Volume (CAV) Control Mode
44
Supply Multi-Stage Air Volume (MSAV) Control Mode
44
A Box (3- to 5-Ton Units)
44
B Box (7.5- to 12.5-Ton Units)
44
Analog Output Control
47
10 Discharge Air Control
49
Discharge Air Control Cooling (DACC) Outdoor Air Temperature Reset
50
Discharge Air Control Cooling (DACC) Total Reset Limit
51
Heating
54
Discharge Air Control Heating (DACH) Outdoor Air Temperature Reset
55
Discharge Air Control Heating (DACH) Total Reset Limit
56
11 Third-Party Zoning
58
Discharge Air Control Heating Outdoor Air Reset
59
12 Bacnet
60
Analog Output Objects
61
Analog Value Objects
62
Analog Input Objects
63
13 Load Shedding Options
68
14 Service Relay
69
System Relative Humidity Options
70
15 Control Parameters
72
18 Advanced Airflow (Smart Airflow) in High Efficiency a Box (3-5 Ton Units)
73
Calibration
73
Outdoor Airflow (OA) Measurement and Control
74
19 Sequence of Operation
76
Operations Common to All Rooftop Units
77
20 M3 Unit Controller Inputs and Outputs
85
5
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Lennox Prodigy 2.0 Specifications
General
Brand
Lennox
Model
Prodigy 2.0
Category
Controller
Language
English
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