Lennox BALTIC Series Application Manual page 11

FEATURES AND BENEFITS
93% high efficiency Gas Burner Option
Lennox is proud to introduce the first high efficiency gas burner
available on rooftop in Europe with 93% efficiency.
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 efficiency.
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 fired rooftop can not be installed inside a technical room.
Page 10 - Application Guide 04-2003 / Rooftop BALTIC Series
options and accessories
TREATMENT OPTIONS
Customised colour
The unit can be supplied in various colours to suit any applica-
tion or requirement. The units colour must, however, be
identified with a RAL number.
Anti-Corrosion Protection
Where the units are installed in
environments, which can often be the case for example in coastal
or manufacturing environments, it is often a requirement that
the coils are specially treated to protect them against the corro-
sive effects . "Blygold", is known for being one of the most effi-
cient protective coatings and it is available on the condensing,
evaporator and/or on the hot water coils.
ELECTRICAL OPTIONS
Fire-Stat
This is a thermostat that provides a signal when the temperature
in the airstream is above an adjustable set point (70°C stan-
dard).
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.
Smoke Detector
Located downstream of the filter, the ionic 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.
potentially aggressive