Specifications

• 14 • Application Guide • BALTIC - 0108
FEATURES AND BENEFITS options and accessories
CONTROL OPTIONS
Advance control pack
Where a higher level of controllability is required to make the
Balticevenmoreexible,LENNOXhavecompiledapackthat
includes two advanced control features.
-"Enthalpy control on economiser".
Software and its sensors will ensure that the economiser does
notuse100%freshairiftheoutsideairhasahigherenthalpy
than the return air. This feature is relevant in regions where the
relative humidity is high or when the desired room air condition
is very dry.
- "Humidity control" software and its sensors, are able to analyze
dry and wet bulb temperatures, and therefore can control a de-
humidicationalgorithm.Thiswilldehumidifytheairincooling
mode as it passes through the coil, then reheating it with either
electric heater or hot water coil. If there is a need to humidify
the air, a proportional contact is now available to control a hu-
miderthatwillbeprovidedbythecustomer.
DC 50 : Comfort Display
This is a remote controller for non-technical customer. It has been
wantedtoaestheticallytinsidearoomandbeveryeasytouse.
It can be installed at maximum 500 meters from the unit.
This graphical display gives information such as running mode
oftheunit,statusofthefan,setpoint,%offreshair,outside
air temperature.
Customer can change the scheduling of the different time zone,
canmodifytemperaturesetpointand%offreshairforeach
zone. Customer can also overide the scheduling in either chan-
ging the set point for 3 hours or in forcing the rooftop to unoccu-
pied mode for 1 to 7 days. ON/OFF key is also available.
DC50 Comfort display, shows faults number when rooftop is in
the failure mode. Customer can reset fault thanks to a combi-
nation of keys.
Timeanddayoftherooftopcanbeseenandmodiedeasily
through the DC50.
DS 50 : Service Display
This new service display controller directly plugs on the external
wall of the unit.
This allows service personal to set up to 90 settings, read up
to 125 variables, up to 45 faults and read the history of the last
16 faults.
This controller has been designed to be very user friendly, with
6 different keys, a 4 lignes display and this controller includes
scrollingmenusandtruelanguage(nocodes).ItwillbeinEnglish
or an other alternate language.
TCB (Thermostat Control Board)
This board has been developped for any customer who wants
to take over the control of the unit. With 6 logical inputs (Com-
pressor stage 1 and stage 2, heating step 1 and 2, 4 way valves
andfan),thisboardwillreplacethecontrolalgorythm.However
CLIMATIC™ 50 controller will stay in charge of all safety algo-
rythm, defrost operation or free cooling operation. All Input are
volt free contact.
This is the perfect board, to have BALTIC rooftop managed by a
zoning system, a universal thermostat or even a BMS system.
Communication interface / Modbus interface
Electronic board needed for Climalink or Climalook use. One
board required per rooftop.
This board is a well a modbus interface, which is needed for
anyone who would like a BMS system to talk to the Baltic with
"Modbus protocol". No other hardware than this board is required
to have modbus dialog. One board required per rooftop.
LonTalk® interface
This board is a LonTalk® interface, which is needed for anyone
who would like a BMS system to talk to the Baltic with «Lon pro-
tocol» with FTT10. No other hardware than this board is required
to have LonTalk® dialog. One board required per rooftop.
Bacnet® interface
This board is a Bacnet® interface, which is needed for anyone
who would like a BMS system to talk to the FLEXY II with “Bacnet
protocol» RS485.