Specifications

• 12 • Application Guide • BALTIC - 0108
HEATING OPTIONS
Electric Heater
The electric heater comprises of shielded resistance heaters,
which are smooth anticorrosion tubes 6 W/cm2 capacity.
High temperature limit control offers overload protection and
is set to 90°C and located at less than 150mm after electric
heaters. This is provided as a standard feature on the electric
heater, with the electric power supply cables made of reticulated
silicon rubber, resistant to temperatures up to 200°C. For any
rooftop unit size, three sizes of electric heater are available, S
(standard),M(Medium)andH(high).
BALTIC 20 and 30 have :
Standard heat : 12 kW , 2 stages
Medium Heat : 24 kW , 2 stages
HighHeat:36kW,Fullymodulating(Triac)
BALTIC 35 have :
Standard heat : 24 kW , 2 stages
Medium Heat : 36 kW , 2 stages
HighHeat:48kW,Fullymodulating(Triac)
BALTIC 45, 55 have :
Standard heat : 27 kW , 2 stages
Medium Heat : 45 kW , 2 stages
HighHeat:54kW,Fullymodulating(Triac)
BALTIC 65, 75 have :
Standard heat : 27 kW , 2 stages
Medium Heat : 45 kW , 2 stages
HighHeat:54kW,Fullymodulating(Triac)
Capacity of the high heat heater can be limited electronically to
an exact value through the CLIMATIC™ 50.
To reduce installation time and hence cost, electric heaters are
alwaysfactorytted,fullywiredandtested,priortoshipment.
Hot Water Coil
Hot water coils offer fully modulating control through the use of
a 3 way valve. The hot water coil, connections and valves are
all tested at pressure of 15 bars. Frost protection is provided by
forcing the opening the 3 way valve when supply temperature
from hot water coil falls below 8°C and by stopping the outdoor
fan when that supply temperature falls below 6°C. In addition
tothat,the3waysisalsoopenedat10%valueiftheoutdoor
temperaturefallsbelowanadjustablevalue.
Hotwatercoilsarealwaysfactorytted,wiredandfullytested,
prior to shipment.
FEATURES AND BENEFITS options and accessories
INDOOR AIR QUALITY
Analogic Blower sensor and dirty lter indication
A differential pressure sensor measures the pressure drop
acrosstheevaporatorcoilandlters.Ifthispressuredropis
above 50Pa, the rooftop is considered to be operating. The exact
pressure drop can be seen through the Intelligent CLIMATIC™
50 board. This option further improves security and reliability of
the BALTIC rooftops. It prevents overheating of any device if
the fan belt is broken.
Using the same pressure sensor as the "Blower On Sensor",
pressure drop information is interpreted by the CLIMATIC™ 50
boardtodeterminewhetherthelterisdirtyornot.Thisinfor-
mation is available with all CLIMATIC™ 50 controllers.
Thesetpointbetween"dirty"and"clean"isfullyadjustableby
theinstaller/users.(Defaultvalueisapproximately250Pa).
Panel lters with metal frames and disposable lter media
(EU4 / G4) (Be careful to the lter re class related to the local
rules)
When units are installed in an environment when it is expected
thatlterswillbechangedmorefrequentlythanusual,itisad-
visable that the end user includes metallic frame with washable
lter(classiedEU4/G4)media.Thisisa morecost-effective
answertodisposablelters.
EU7 / F7 Panels lters (Be careful to the lter re class related
to the local rules).
As different applications have differing needs, it is more and more
important that LENNOX can provide various options for a mixed
rangeofrequirements.TheEU7/F7ltercapabilitywithEU4/G4
pre-ltersisavailabletoaddadditionalexibilityforspecicpro-
jects,whereIndoorAirQualityisofparticularimportance.
Indoor Air Quality Sensor
Indoor air quality is controlled from the CLIMATIC™ 50 board. A
VOC(VolatileOrganicComponent)sensorwilldetecttheamount
of CO2 in the air between 0 and 2000PPM. (This obviously varies
dependinguponspaceoccupancylevels).TheVOCsensorwill
thensendaproportionalsignal(0-20mA)totheCLIMATIC™50
controller which will then modulate the fresh air.