Lennox Core Unit Controller User Manual

2
Table of Contents
1. CORE Unit Controller Overview ........................... 3
1.1. Lennox
®
CORE Service App - Android or iOS
Device Minimum System Requirements ...............3
1.2. Additional Features ...............................................3
1.3. CongurableSequencesofOperation ..................3
1.4. Component Protection / Unit Safeguards .............3
1.5. Control Methods / Interfaces .................................3
1.6. Lennox CORE Unit Controller - Connections,
Inputs / Outputs, Jumpers, and LEDs Locations...4
1.8. Cloud Firmware Updates ......................................6
2. Network Types ....................................................... 6
3. Unit Operation ....................................................... 6
4. CORE Service App Menu Selection Overview .... 7
5. Pairing CORE Service App to CORE Unit
Controller ............................................................... 7
6. System Overview - Room Sensor Mode .............. 7
7. Active Alarms ......................................................... 8
8. CORE Service App General Menu + User
Preference .............................................................. 8
9. CORE Service App RTU Menu .............................. 8
9.1. Setup.....................................................................8
9.2. Data ....................................................................18
9.3. Service ................................................................22
9.4. Settings ...............................................................26
10. SpecialEquipmentCongurations .................... 28
10.1. Thermal Protection Switches (S5, S8, S31
and S180) ...........................................................28
10.2. Blower Operation with Effective Occupancy ......28
10.3. Enabling Economizer and Settings ....................30
10.4. Free Cooling Compressor Lockout Mode
and Low Ambient Set Point ................................. 30
10.5. Demand Control Ventilation ...............................32
10.6. Determining Indoor Air Quality Inputs .................34
10.7. BACNET .............................................................34
10.8. Abbreviations ......................................................35
11. Parts and Kits ...................................................... 36
12. Service Report Example ..................................... 36
13. Alarms ................................................................. 37
13.1. Phase - Voltage Detection ..................................37
13.2. Service Relays ....................................................37
14. CORE Control System Unit Parameters ............ 49
15. CORE Control System Inputs and Outputs ...... 74
15.1. CORE Unit Controller (A55) Input/Outputs .........74
15.2. C4 Control (A178) ...............................................82
15.3. DSI Board (A3)....................................................84
15.4. W4 Control ..........................................................87
16. Quick Start Guide ................................................ 88
17. Wiring Diagrams .................................................. 89
18. FCC Compliance Statement ............................... 90

Lennox Core Unit Controller Specifications

General

Brand	Lennox
Model	Core Unit Controller
Category	Controller
Language	English