Lennox Core Unit Controller User Manual

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16. Quick Start Guide
CAUTION
Check rooftop unit electrical power for proper voltage and phasing. Check gas train components.
a. Turn on unit and dismiss alarm messages as necessary.
b. FollowSETUP>INSTALLmenutoproperlycongureunit
c. Be sure unit is in normal operating mode as seen in display (COOLING, HEATING, IDLE, etc).
d. To verify operation use SERVICE > TEST menu.
Control Mode Menu Setup Needed Tips
THERMOSTAT (Factory set for 2-stage thermostat) Check LEDs for signals.
BACnet
SETUP > NETWORK INTEGRATION > NETWORK WIZARD > NETWORK
TYPE = BACNET MS/TP
• Setupinformationtobeveriedwith
integrator.
• Follow wiring instructions including network
termination
• Remember to set MAC address 0-127
• Expert level BACnet service manual available.
LonTalk SETUP > NETWORK INTEGRATION > NETWORK WIZARD > = LONTALK
• Setupinformationtobeveriedwith
integrator.
• Follow wiring instructions including network
termination
• XIFleavailable.NeuronIDonsticker.
• Expert level LonTalk service manual available.
Damper SETUP > TEST & BALANCE > DAMPER
• Verify damper minimum positions
• Refer to Economizer section of manual for
more detail
Local Mode
SETUP > NETWORK INTEGRATION > NETWORK WIZARD > RTU
STANDALONE
• Give unit time to start-up.
• Humidity control requires sensor or error code
7649
Dehumidier
DehumidiersetupwillbedoneduringtheSETUP>INSTALLwizard.It’sthe
last part of that wizard.
• Three possible connections, LOCAL
SENSOR, NETWORK SENSOR and
REHEAT DI4.
• Analog sensor wiring is polarity sensitive
Blower
Change motor torque; see
SETUP > TEST & BALANCE > BLOWER
• Final motor CFM should be set by Test and
Balance technician
• Blower charts are located in the unit
installation instruction.

Lennox Core Unit Controller Specifications

General

Brand	Lennox
Model	Core Unit Controller
Category	Controller
Language	English