Unit Controller Parameter Settings - Lennox LGT156H Installation Instructions Manual

8- Carefully place the UVC assembly on the blower
deck. Line up the mounting holes on the UVC
assembly with the mounting holes on the blower
deck. Use the retained #10 screws to attach the UVC
assembly in place.
9- Close the blower access door.
10- Reconnect power to the rooftop unit.
11- Open the filter access door and look through the view
port in the triangular sheet-metal panel to verify that
the UVC light is on.
For all maintenance, contact a licensed HVAC technician.
If UVC lamp does not come on:
1- Check Power Wiring: Disconnect 1/4" QC (quick
connects) of the UVC cable near the UVC assembly.
With Power ON, use multimeter to test 110-230V at
the 1/4"QC quick connects from the control panel.
2- Check Lamp: Carefully remove the UVC assembly
out of the rooftop unit. Use multimeter to test for
continuity across each pair of pins at each end of the
lamp.
3- Check Lamp Installation: Make sure that lamp's pins
snap properly into the lamp holder.
Lamp Disposal
Hg-Lamp Contains Mercury - Manage in accordance with
local, state and federal disposal laws. Refer to
www.lamprecycle.org.
Proper Clean-up Technique in Case of Lamp Breakage
Wear protective gloves, eye wear and mask.
Sweep the broken glass and debris into a plastic bag, seal
the bag, and dispose of properly. Contact your local waste
management office for proper disposal.
Do not use a vacuum cleaner. Do not incinerate.
Maintenance
S
For all maintenance, contact a qualified HVAC
technician.
S
Read the maintenance instructions before opening
unit panels.
S
Unintended use of the unit or damage to the unit
housing may result in the escape of dangerous UVC
radiation. UVC radiation may, even in small doses,
cause harm to the eyes and skin.
S
Do not operate units that are obviously damaged.
S
Do not discard the triangular UVC light shield or any
barriers with an ultraviolet radiation symbol.
S
Do not override the door interlock switch that
interrupts power to the UVC light.
S
Do not operate the UVC light outside of the unit.
LGT/LCT156, 180, 210, 240, 300
Factory Unit Controller Settings
Use the mobile service app to adjust parameters; menu
paths are shown in each table. Refer to the Unit Controller
manual provided with each unit.
Tables 22 through 26 show factory settings (in degrees, %
of fan CFM, etc.). Record adjusted settings on the label
located inside the compressor access panel.
When field installing optional kits and accessories, the
Unit Controller must be configured to identify the option
before it will function. Refer to figures 47 and 48 to
determine whether the Unit Controller configuration I.D.
must change. To configure the option, use MAIN MENU >
SETUP > INSTALL menu path. Press SAVE until
CONFIGURATION ID 1 or 2 appears depending on the
option installed. Change the appropriate character in the
configuration I.D. For example, when an economizer is
installed using a single enthalpy sensor, change
configuration I.D. 1, the second character, to "S".
TABLE 22 - 581038-01
Units With BACnet Module Settings
RTU Menu > Network Integration > Network Setup Wizard > BACnet
MS/TP > See BACnet MAC Address
BACNET MAC ADDRESS:
Units With Room Sensor, CPC/LSE Gateway Settings
RTU Menu > Network Integration > Network Setup Wizard > SBUS >
Set SBUS Address
LCONN ADDRESS:
TABLE 23 - 581024-01
Units With Hot Gas Reheat
RTU Menu > Settings "RTU Options" > Dehumidifier
Para­
met­
Factory
er Setting
105 7
Units With LonTalk Settings
Use menu RTU Menu > Network Integration > Network Setup Wizard
> Set "LONTALK"
Page 82
Field
Set­
ting
Description
Factory Setting 7: Reheat mode en­
abled without prerequisite conditions.
Controlled by RH sensor (A91) con­
nected to input A55_P298_5 and set
point set at parameter 106 (default
60%).
TABLE 24 581037-01