Specifications

• 6 • Application Guide • BALTIC - 0108
FEATURES AND BENEFITS STANDARD UNIT
Anticorrosion xings and Anticorrosion Coating on the
casing (10 years warranty)
The BALTIC has been designed to ensure that it has a long
operational life.
The RAL 9002 powdered polyester paint is UV resistant, pro-
tecting the unit from damaging UV rays.
Further resistance is provided on the BALTIC range through
theuseofanticorrosionxings(A2Anticorrosion)asastandard
feature.
These standard features allows LENNOX to offer a 10 year
warrantyagainstcorrosion(*).
(*)Corrosion LENNOX policy : Nevertheless the LENNOX coating is highly re-
sistant to corrosion, the warranty will not be applied for Rooftop installed at less
than 1000 m away from the sea.
More reliable refrigeration circuit
To minimise the risk of leaks, refrigeration circuit has been dras-
ticallysimpliedtoreducethenumberjoints(potentialcauseof
leak).ForexampleaBALTICBAHM40wouldhaveonly28joints,
whenatypicallrooftopofthesamesizewouldhave38joints).
The second inovation of the refrigeration circuit will reduce
maintenance time.
Alljointsandallpipesarelocatedintherefrigerationsection.
This includes evaporator collector located in the same compart-
ment. Service technician only have one door to open to access
the whole circuit.
INDOOR AIR QUALITY DOES MATTER
Fire proof (M0) insulation (Indoor Air Section)
Because, for LENNOX, health and safety issues cannot be com-
promised,inallrooftopsreinsulation(M0reClass)isttedas
standard.65kg/m3insulationismechanicallyttedtotheunit.
Thisfeatureimprovesthesafetyoftherooftopagainstre,as
thespecicationsuggests,theinsulationwillnotburnandsmoke
is not generated.
Edges of insulation are protected on the edge to perfectly seal
the insulation.
Removable Aluminium Drain Pan
This gives the drain pan a longer life. The underside of the unit
is insulated to reduce condensation.
The bent drain traps are shipped in a kit form. Drain pan is sloped
to prevent stagnation of water. It is removable with 2 screws.
It slides out and can be easily cleaned, preventing growth of
bacteria in the drain pan.
Accurate percentage of fresh air (under patent INPI MAY
2003)
Because a fresh air damper curve is not linear, it is not accurate
to assume that the percentage of opening of the damper is equal
to the percentage of fresh air enterring the building.
However, this linear control of a damper is by far the most used
in the industry.
With Indoor air quality and running cost of a building being more
importanttoourcustomer,Lennoxwantedtopilotthe%offresh
air more accurately.
The CLIMATIC™ 50 can now periodically recalibrate the dam-
pers, in calculating the real percentage of fresh air entering the
bulding for the each different positions of the damper.
This recalibration is achieved using the return air sensor, the
outdoor sensor and supply air sensor. When all heating or cooling
elements are off, the percentage of fresh air actually entering
the rooftop is the result of the following equation :
"%Fresh Air" =
"Supply Air temperature" - "Return Air Temperature"
"Fresh air Temperature " - "Return Air Temperature"
Forexample,CLIMATIC™50wouldaccuratelyadjustthedam
-
perpositiontoget20%freshairandnot30%or10%.
Therefore, this feature either saves a lot of energy cost by not
bringing more fresh air than needed or makes sure that air quality
is at the expected level.
This allows CLIMATIC™ 50 to send an alarm when damper can
notbecalibrated(faultydamper)