Specifications

Application Guide • BALTIC - 0108 • 13 •
FEATURES AND BENEFITS options and accessories
93% high efciency Gas Burner Option (PCI %)
Lennoxisproudtointroducethersthighefciencygasburner
availableonrooftopinEuropewith93%efciency.
Ebox,size60-70,havea92%efcientgasburner.
The standard gas burner is designed to work with 20 mbar (with
anoperatingrangeof13-26mbar).
Gas module offer 2 stages of control. This assists in improving
space comfort levels by avoiding large supply air temperature
deviations.
The aluminized steel tube heat exchanger is designed to offer
maximumheattransferefciency.
If required, an expansion device can be provided in the BALTIC
allowing it to operate with gas pressures of up to 300 mbar. A
"propane gas" option at 37 mbar is also available.
Gasredrooftopcannotbeinstalledinsideatechnicalroom.
TREATMENT OPTIONS
Anti-Corrosion Protection
When the units are installed in potentially aggressive environ-
ments, which can often be the case for example in coastal en-
vironments, it is often a requirement that the coils are specially
treated to protect them against the corrosive effects .
After extensive testing, Lennox has chosen to use Thermo-
guard anticorrosion cleaning for the FLEXY II. The results of
Thermoguard ® on saline test were so good, that coil can be
guaranteed against corrosion during 3 years (provided regular
maintenanceisperformed).
Thermoguard® treatment is available on Condensing coil, eva-
porator coil and hot water coil.
(*) see corrosion LENNOX policy.
ELECTRICAL OPTIONS
Fire-Stat
This is a thermostat that provides a signal switch off the unit,
close the fresh air damper and open the return damper when
thetemperatureinthereturnairstreamisaboveanadjustable
setpoint(70°Cstandard).
Disconnect Switch
Main disconnect switch is lockable to increase safety around
the rooftop unit.
Switching off the unit whith the disconnect switch will reset all.
Disconnect switch will be sized accordingly to the option picked
with the unit.
The main switch is used as an emergency cut off.
It is mandatory to guarantee a proper accessibility to this
switch
Specicfootbridgesmustbeinstalledifthemachineenvironment
is requiring it.
Smoke Detector
Locateddownstreamofthelter,theopticalheadofthesmoke
detector can detect any type of smoke. When this occurs the
unit will stop operating, the return air damper will be fully closed
and the fresh air damper will fully open while sending an alarm
signal to the unit.
In accordance with the European norm, it is also compliant with
the French regulation on public buildings.
Mass loss in Saltspray
%ofmassdifferentiation
Hours
ALUMINIUM/ COPPER
CUIVRE/CUIVRE
FIN GUARD