Lennox DAVE LENNOX SIGNATURE CBX32MV - OPTIONAL ELECTRIC HEAT

CBX32MV / Page 6
CONTROLS (continued)
ComfortSense
®
7500 Touchscreen Thermostat
Electronic 7-day, universal, multi-stage, programmable,
touchscreen thermostat.
4 Heat/2 Cool.
Auto-changeover.
Dual-fuel control with
optional outdoor sensor.
Controls dehumidication
during cooling mode and
humidication during
heating mode.
Offers enhanced capabilities including humidication /
dehumidication / dewpoint measurement and control,
Humiditrol
®
control, and equipment maintenance
reminders.
Easy-to-use, menu driven thermostat with a back-lit,
LCD touchscreen.
See the ComfortSense
®
7500 Product Specications
bulletin in the Controls section for more information.
Remote Outdoor Temperature Sensor for
ComfortSense
®
7500 Thermostat
Allows the thermostat to display outdoor temperature.
Required in dual-fuel and Humiditrol
®
applications.
Thermostat
Thermostat (iComfort
®
S30 Thermostat, iComfort Wi-Fi
®
Thermostat or programmable/non-programmable) is not
furnished with unit.
See Thermostat bulletins in Controls Section and
Lennox Price Book for selection.
Hot Water Heat Kit
Air handler kit to control a third-party hot water boiler
with a hot water heating coil installed downstream from
the air handler.
Kit contains all necessary relays and plug-in wiring
harness to control boiler.
NOTE - This kit is only approved for use in systems
using either the ComfortSense
®
7500 or
iComfort
®
-enabled thermostats.
OPTIONAL ELECTRIC HEAT
Field install internal to unit cabinet.
Available in several voltages and kW sizes.
See Electric Heat tables.
Helix wound nichrome heating elements exposed
directly in air stream resulting in instant heat transfer,
low element temperatures and long service life.
Each element equipped with accurately located limit
control with xed temperature off setting and automatic
reset.
Supplemental thermal cutoff limit control, provides
positive protection in case of excessive temperatures.
Thermal sequencer relay brings elements on and off
line, in sequence and equal increments, with time delay
between each.
Initiates and terminates blower operation.
Heating control relay(s) furnished as standard.
Control box and access cover constructed of heavy
gauge galvanized steel.
Factory assembled with controls installed and wired.
Electric heat low voltage controls plug-in to air handler.
Circuit Breaker Models
The following heaters are equipped with circuit breakers
for overload and short circuit protection:
ECB40-4CB, -5CB, -6CB, -8CB, -9CB, -12.5CB, -15CB,
-20CB and -25CB (208/240V-1ph)
ECB40-15CB, -20CB and -25CB (208/240V-3ph
Factory wired and mounted on electric heat unit.
Current sensitive and temperature actuated.
Manual reset.
Circuit breakers qualify as disconnect means at unit
in many areas, eliminate the need for eld provided
disconnect.
Consult local electrical code in your area.
Optional Accessories
Circuit Breaker Cover Kit
Flexible plastic cover protects circuit breaker.
Recommended in areas with high humidity or
unconditioned areas to prevent nuisance tripping.
Single-Point Power Source Control Box
Control Box may be used with optional electric heat
when single power supply is connected to multi-circuit
electric heat.
Field installs external to the unit cabinet on either side
or top.
Constructed of heavy gauge steel, baked enamel nish,
prepunched mounting holes, electrical inlet knockouts,
and terminal strip.
Removable cover provides easy access.
Dimensions (H x W x D) - 7 x 7 x 4 in.
I
FEATURES
6 of 44 B17-0056
01/19/2017