Lennox BAC030SNM Installation guide

20 - 85 kW
Installation, operating
and maintenance
BALTIC-IOM-0412-E
BALTIC™ Rooftop units air cooled

BALTIC™
1
28
74
84
BALTIC-IOM-0412-E
Installation, operating and
maintenance Ref : BALTIC-IOM-0412-E
TABLE OF CONTENTS
INSTALLATION MANUAL
SERVICE MANUAL
CONTROL MANUAL
CERTIFICATES
All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us,
remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made available to third
parties without the prior written agreement of Lennox.

• 1 •
BALTIC™
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BALTIC-IOM-0412-E / Installation manual
INSTALLATION MANUAL
Ref : BALTIC_Installation-IOM-0412-E
TABLE OF CONTENTS
INSTALLATION MANUAL
Safety codes & regulations
TRANSPORT & HANDLING
Mandatory handling devices
LIFTING THE UNITS
Machine dimensions and weights
Minimum clearance around the unit installation
Fork lifting the unit
Removing the forklift protection located under the machine
Lifting the unit with a crane
Lifting the roof curbs
DELIVERY CHECKS
Rating plate
Storage
Maintenance key
Condensate drains
Preliminary checks
Installation requirements
Connections
INSTALLATION ON A ROOF MOUNTING FRAME
Roof opening dimensions
Sealing checks
Leveling adjustable roofcurbs
Positioning the rooftop on adjustable roofcurbs
NON ADJUSTABLE NON ASSEMBLED ROOFCURB INSTALLATION
Frame parts packing
Installation
Assembly
Securing the frame
Sealing checks
CURBING AND FLASHING
HEAT RECOVERY GENERAL DESCRIPTION
PLATE HEAT RECOVERY CONFIGURATIONS
PLATE HEAT RECOVERY INSTALLATION
THERMODYNAMIC HEAT RECOVERY CONFIGURATIONS
THERMODYNAMIC HEAT RECOVERY - SERVICE MANUAL
THERMODYNAMIC HEAT RECOVERY - CONTROL MANUAL

• 2 •
BAC 024 SNM 3M 23,4 - -
BAC 030 SNM 3M 29,2 - -
BAC 038 SNM 3M 37,1 - -
BAC 042 SNM 3M 39,4 - -
BAC 045 DNM 3M 43,9 - -
BAC 052 DNM 3M 49,8 - -
BAC 057 DNM 3M 55,2 - -
BAC 065 DNM 3M 62,6 - -
BAC 075 DNM 3M 74,1 - -
BAC 085 DNM 3M 80,7 - -
BAH 024 SNM 3M 23,4 20,7 -
BAH 030 SNM 3M 29,2 26,2 -
BAH 038 SNM 3M 37,1 34,8 -
BAH 042 SNM 3M 39,4 38,0 -
BAH 045 DNM 3M 43,9 40,8 -
BAH 052 DNM 3M 49,8 46,2 -
BAH 057 DNM 3M 55,2 54,4 -
BAH 065 DNM 3M 62,6 62,2 -
BAH 075 DNM 3M 74,1 73,5 -
BAH 085 DNM 3M 80,7 80,1 -
BAG 024 SSM 3M 23,3 - 20
BAG 030 SSM 3M 28,9 - 20
BAG 038 SSM 3M 36,8 - 20
BAG 042 SSM 3M 39,1 - 20
BAG 045 DSM 3M 43,7 - 33
BAG 052 DSM 3M 49,5 - 33
BAG 057 DSM 3M 54,7 - 33
BAG 065 DSM 3M 61,9 - 33
BAG 075 DSM 3M 73,4 - 60
BAG 085 DSM 3M 79,8 - 60
BAG 024 SHM 3M 23,3 - 46
BAG 030 SHM 3M 28,9 - 46
BAG 038 SHM 3M 36,8 - 46
BAG 042 SHM 3M 39,1 - 46
BAG 045 DHM 3M 43,7 - 60
BAG 052 DHM 3M 49,5 - 60
BAG 057 DHM 3M 54,7 - 60
BAG 065 DHM 3M 61,9 - 60
BAG 075 DHM 3M 73,4 - 120
BAG 085 DHM 3M 79,8 - 120
BAM 024 SSM 3M 23,3 20,8 20
BAM 030 SSM 3M 28,9 26,5 20
BAM 038 SSM 3M 36,8 35,1 20
BAM 042 SSM 3M 39,1 38,4 20
BAM 045 DSM 3M 43,7 41,0 33
BAM 052 DSM 3M 49,5 46,6 33
BAM 057 DSM 3M 54,7 54,9 33
BAM 065 DSM 3M 61,9 62,8 33
BAM 075 DSM 3M 73,4 74,2 60
BAM 085 DSM 3M 79,8 81,0 60
BAM 024 SHM 3M 23,3 20,8 46
BAM 030 SHM 3M 28,9 26,5 46
BAM 038 SHM 3M 36,8 35,1 46
BAM 042 SHM 3M 39,1 38,4 46
BAM 045 DHM 3M 43,7 41,0 60
BAM 052 DHM 3M 49,5 46,6 60
BAM 057 DHM 3M 54,7 54,9 60
BAM 065 DHM 3M 61,9 62,8 60
BAM 075 DHM 3M 73,4 74,2 120
BAM 085 DHM 3M 79,8 81,0 120
BALTIC-IOM-0412-E / Installation manual
INSTALLATION MANUAL
The present manual applies to the following rooftop versions
Item Net cooling capacity
(kW - Eurovent conditions)
Heating capacity
(kW - Eurovent conditions)
HeatPump
Heating capacity
(KW) GAS
COOLING ONLY
HEAT PUMP
GAS ONLY - STD HEAT
GAS ONLY - HIGH HEAT
DUAL FUEL - STD
DUAL FUEL - HIGH

• 3 •BALTIC-IOM-0412-E / Installation manual
INSTALLATION MANUAL
Safety codes & regulations
THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH LOCAL SAFETY CODES AND REGULATIONS AND CAN ONLY BE
USED IN WELL VENTILLATED AREA.
PLEASE READ CAREFULLY THE MANUFACTURER’S INSTRUCTIONS BEFORE STARTING THIS UNIT.
INSPECTIONS AND REQUALIFICATION ACCORDING PRESSURE EQUIPMENT DIRECTIVE MUST FOLLOW THE LOCAL
REGULATIONS WHERE THE UNIT IS INSTALLED.
Important note for unit fitted with gas burner:
The following note must be followed carefully
THIS MANUAL IS ONLY VALID FOR UNITS DISPLAYING THE FOLLOWING CODES:
GB IR GR DA NO FI IS
In case these symbols are not displayed on the unit, please refer to the technical documentation which will eventually detail any
modifications required to the installation of the unit in a particular country.
• If machine is including gas burner, minimum clearance around the unit must be at least 8 m to allow a proper gas flue dilution. If
not possible, the fresh air intake must be ducted at least 8 m away from the gas burner exhaust.
• The gas burner air intake and exhaust chimney must not be modified or ducted.
• Before commissioning this type of unit, it’s mandatory to ensure that the gas distribution system is compatible with the adjustments
and settings of the unit.
• Gas module can only be used for outdoor installations.
• Any work on gas module must be carried out by qualified engineer.
All units are compliant with the PED directive 97-23/CE
All the technical and technological information contained in this manual, including any drawing and technical descriptions provided
by us, remain the property of LENNOX and must not be utilised (except in operation of this product),reproduced, issued to or made
available to third parties without the prior written agreement of LENNOX. The technical information and specifications contained in
this manual are for reference only. The manufacturer reserves the right to modify these without warning and without obligation to
modify equipment already sold.
All work on the unit must be carried out by a qualified and authorised employee.
Non-compliance with the following instructions may result in injury or serious accidents.
Work on the unit:
• The unit shall be isolated from the electrical supply by disconnection and locking using the main isolating switch.
• Workers shall wear the appropriate personal protective equipment (helmet, gloves, glasses, etc.).
Work on the electrical system:
• Work on electric components shall be performed with the power off (see below) by employees having valid electrical qualification
and authorisation.
Work on the refrigerating circuit(s):
• Monitoring of the pressures, draining and filling of the system under pressure shall be carried out using connections provided for
this purpose and suitable equipment.
• To prevent the risk of explosion due to spraying of coolant and oil, the relevant circuit shall be drained and at zero pressure before
any disassembly or unbrazing of the refrigerating parts takes place.
• There is a residual risk of pressure build-up by degassing the oil or by heating the exchangers after the circuit has been drained.
Zero pressure shall be maintained by venting the drain connection to the atmosphere on the low pressure side.

• 4 • BALTIC-IOM-0412-E / Installation manual
INSTALLATION MANUAL
• The brazing shall be carried out by a qualified brazier. The brazing shall comply with standard NF EN1044 (minimum 30% silver).
EMC DIRECTIVE COMPLIANCE
WARNING:
This equipment is an “A class“ according CEM Directive. In an industrial environment, this device can create radio electrical noise. In
this case, the owner can be asked to take appropriated actions.
This applies to all machine installed with nominal amps below <75A:
• The short-circuit rate Rsce=33 is defined in the EN61000-3-12 standard relative to the harmonics readings on the supply network.
The appliances compliant with the harmonic current limits equivalent to Rsce=33 can be connected in whatever connection point
of the main supply system.
• The maximal allowable impedance of the main supply system Zmax=0.051W is defined by EN 61000-3-11 standard relative to
the voltage variation, fluctuation and flicker readings. The connection to the supply is a conditional connection submitted to the
preliminary agreement of the power supply local provider.
Replacing components:
• In order to maintain CE marking compliance, replacement of components shall be carried out using spare parts, or using parts
approved by LENNOX.
• Only the coolant shown on the manufacturer’s nameplate shall be used, to the exclusion of all other products (mix of coolants,
hydrocarbons, etc.).
CAUTION:
In the event of fire, refrigerating circuits can cause an explosion and spray coolant gas and oil.
Transport – Handling- Access:
• Never lift the unit without forklift protections
• An approach ramp must be installed if the unit’s installation requirements tell that it's necessary to reach the main switch, the electrical
cabinet, the compressor and the ventilation compartment. This recommendation is valid for all type of installations.
• It is strictly forbidden to walk or store equipment or material on top of the rooftop unit
Rooftop installation in heavy wind locations
• The roofcurbs (vertical & horizontal) and rooftops installations are designed to withstand winds up to 80 km/h. Above this limit, it’s
recommended to take appropriate actions to secure the installation.
• Ensure the fresh air inlet does not face prevailing wind direction.
Elbow or section changes in ductworks next to the rooftop
• Whatever the supply configuration is, respect a minimal duct’s length of 2 m before any elbow or any duct’s section change.
• Directional vanes must be fitted inside any elbow fitted in return or supply ductwork closer than 5 meter to the machine connection
flanges.
Filters:
• Do the filters fire classification’s choice according to local regulations.
Fan compartment:
• Stop the power before accessing the fan compartment.
Gas:
• Any work on gas module must be carried out by qualified personnel
• A unit with gas module must be installed in accordance with local safety codes and regulations and can only be used for outdoor
installation.
The technical information and specifications contained in this manual are for reference only. The manufacturer reserves the right to
modify these without warning and without obligation to modify equipment already sold.

• 5 •BALTIC-IOM-0412-E / Installation manual
TRANSPORT & HANDLING
Mandatory handling devices
MANDATORY HANDLING DEVICES
Handling slings to guide the unit toward
the roof curb
Vacuum lifting beam to position the unit
COMPLIANT NON-COMPLIANT

• 6 •
2283+/-15 2250+/-15 1240+/-15 2683+/-20 2310 2309 1240
2783+/-15 2250+/-15 1240+/-15 2683+/-20 2810 2309 1240
3663+/-15 2250+/-15 1240+/-15 2683+/-20 3690 2309 1240
24 30 38 42 45 52 57 65 75 85
696 711 726 726 937 952 967 982 1150 1150
701 716 731 731 947 962 977 992 1165 1165
739 754 769 769 970 985 1000 1015 1225 1225
758 773 788 788 992 1007 1022 1037 1285 1285
744 759 774 774 980 995 1010 1025 1235 1235
763 778 793 793 1002 1017 1032 1047 1295 1295
-12,1 -12,1 -12,1 -12,1 -18,9 -18,9 -18,9 -18,9 -23,2 -23,2
-7 -7 -7 -7 -10,3 -10,3 -10,3 -10,3 -13,6 -13,6
-5,1 -5,1 -5,1 -5,1 -8,6 -8,6 -8,6 -8,6 -9,6 -9,6
0,9 0,9 0,9 0,9 1,8 1,8 1,8 1,8 2,5 2,5
11,2 11,2 11,2 11,2 20,8 20,8 20,8 20,8 30,3 30,3
22,8 22,8 22,8 22,8 30,9 30,9 30,9 30,9 39 39
3 3 3 3 4,5 4,5 4,5 4,5 6 6
14 14 14 14 21,5 21,5 21,5 21,5 31,2 31,2
20,8 20,8 20,8 20,8 26,7 26,7 26,7 26,7 26,7 26,7
25,4 25,4 25,4 25,4 32,5 32,5 32,5 32,5 32,5 32,5
37,4 37,4 37,4 37,4 45 45 45 45 62,3 62,3
49,6 49,6 49,6 49,6 67,5 67,5 67,5 67,5 92,9 92,9
36,2 36,2 36,2 36,2 54,9 54,9 54,9 54,9 86,4 86,4
20,9 20,9 20,9 20,9 28,4 28,4 28,4 28,4 35,9 35,9
65 65 65 65 70 70 70 70 87 87
139 139 139 139 156 156 156 156 195 195
272 272 272 272 295 295 295 295 440 440
218 218 218 218 241 241 241 241 358 358
174 174 174 174 209 209 209 209 239 239
BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Machine dimensions and weights
Machine Length Width Height Width with
hood Transport lenght Transport Width Transport Height
Cbox
Dbox
Ebox
Unit
Base weight (kg)
Cooling
HeatPump
Gas S
Gas H
Dual S
Dual H
Option weight (kg)
Horizontal return & supply
Horizontal return & vertical supply
Vertical return & horinzontal supply
Gravity exhaust damper
Power exhaust fan
F7 filter
F4 filter
Double skin
Electrical heater S
Electrical heater H
Electrical preheater S
Electrical preheater H
Hot water coil
Energy recovery coil
Accessorie weight (kg)
Non ajustable roofcurb
Ajustable roofcurb
Extraction curb vertical
Extraction curb horizontal
Multidirectional curb

• 7 •
A
1150 (1)
1650 (1)
2150 (1)
BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Minimum clearance around the unit installation
Figure below show the required clearances and service access around the unit.
Fork lifting the unit
Do not lift the unit by the side (coil end side or drain pan outlet side). This will damage the unit.
Lift the unit on the long side using a forklift with dimensions according to the figure below.
Do not remove the unit plastic cover while lifting.
IMPORTANT note for unit clearances
• Ensure the fresh air inlet does not face prevailing wind direction.
• If machine is including gas burner, minimum clearance around the unit must be at least 8 m to allow a proper gas flue dilution. If
not possible, the fresh air intake must be ducted at least 8 m away from the gas burner exhaust.
• In case of extraction option, it is recommended to duct fresh air intake.
Drain pan clearance (A)
C Box
D Box
E Box
Plastic cover must not be removed before
lifting
NO
DO NOT LIFT THIS SIDE

• 8 • BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Removing the forklift protection located under the machine
Before installation, remove the forklift protection which is located under machine desk.
IMPORTANT note about forklift protection removal
Take care not to hurt anybody when removing the forklift rails .
Locate the machine on a safe area while removing the forklift rails from the machine.

• 9 •
5 m
BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Lifting the unit with a crane
Lifting lug dimensions
Use lifting shackles located on each angle of the unit. Maximum diameter of the ring shaft = 20 mm.
Lifting belts length
The unit must be lifted using spacing beams to avoid the belts damages to the casing.
Spacing beams must have a length equal to the machine width – i.e 2250 mm.

• 10 • BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Lifting the roof curbs
Ducting connection details
The supply and return air ducts can be secured to the 30 mm flanges at the bottom of the roofcurb
Any ducting weight above 100 kg must be fixed independently to other building frames.
Minimum distance: 30.000 mm

• 11 •BALTIC-IOM-0412-E / Installation manual
LIFTING THE UNITS
Exhaust roofcurb
Non adjustable roofcurb Adjustable roofcurb
Multidirectionnal roofcurb
WARNING : all multidirectionnal flowcurb and horizontal extraction flow curb must be secured to the ground
using existing fixing holes on the frame.

• 12 • BALTIC-IOM-0412-E / Installation manual
DELIVERY CHECKS
Rating plate
The rating plate provides a complete reference for the model and ensures that the
unit corresponds to the model ordered. It states the electrical power consumption
of the unit on start-up, its rated power and its supply voltage. The supply voltage
must not deviate beyond +10/-15 %. The start-up power is the maximum value
likely to be achieved for the specified operational voltage. The customer must
have a suitable electrical supply. It is therefore important to check whether the
supply voltage stated on the unit's rating plate is compatible with that of the mains
electrical supply. The rating plate also states the year of manufacture as well as
the type of refrigerant used and the required charge for each compressor circuit.
Storage
When units are delivered on site they are not always required immediately and are sometimes put into storage. In the event of medium
to long-term storage, we recommend the following procedures:
• Ensure that there is no water in the hydraulic systems.
• Keep the heat exchanger covers in position.
• Keep protective plastic film in position.
• Ensure the electrical panels are closed.
• Keep all items and options supplied in a dry and clean place for future assembly before using the equipment.
Maintenance key
On delivery we recommend that you keep the key which is attached to an eyebolt in a safe and accessible
place. This allows you to open the panels for maintenance and installation work.
The locks are ¼ turn + then tighter.
On receipt of new equipment please check the following points.
It is the customer’s responsibility to ensure that the products are in good working order:
• The exterior has not been damaged in any way.
• The lifting and handling equipment are suitable for the equipment and comply with the specifications of the handling instructions
enclosed here-in.
• Accessories ordered for on site installation have been delivered and are in good working order.
• The equipment supplied corresponds to the order and matches the delivery note.
If the product is damaged, exact details must be confirmed in writing by registered post to the shipping company within 48 hours of
delivery (working days). A copy of the letter must be addressed to LENNOX and the supplier or distributor for information purposes.
Failure to comply will invalidate any claim against the shipping company.

• 13 •BALTIC-IOM-0412-E / Installation manual
Condensate drains
The condensate drains are not assembled when delivered and are stored in the electrical panel with their clamping
collars. To assemble them, insert them on the condensate tray outlets and use a screwdriver to tighten the collars.
DELIVERY CHECKS
Preliminary checks
Before installing the equipment, the following points MUST be checked:
• Have the forklift protections been removed?
• Is there sufficient space for the equipment?
• Is the surface on which the equipment is to be installed sufficiently solid to withstand its weight? A detailed study of the frame must
be made beforehand.
• Do the supply and return ductwork openings excessively weaken the structure?
• Are there any obstructing items which could hinder the operation of the equipment?
• Does the electrical power available correspond to the equipment's electrical specifications?
• Is drainage provided for the condensate?
• Is there sufficient access for maintenance?
• Installation of the equipment could require different lifting methods which may vary with each installation (helicopter or crane). Have
these been evaluated?
• Ensure that the unit is installed in accordance with the installation instructions and local applicable codes.
• Check to ensure that the refrigerant lines do not rub against the cabinet or against other refrigerant lines.
In general, make sure no obstacles (walls, trees or roof ledges) are obstructing the duct connections or hindering assembly and
maintenance access.
Installation requirements
The surface on which the equipment is to be installed must be clean and free of any obstacles which could hinder the flow of air to
the condensers:
• Avoid uneven surfaces
• Avoid installing two units side by side or close to each other as this may restrict the airflow to the condensers.
Before installing a packaged rooftop unit it is important to understand:
• The direction of prevailing winds
• The direction and position of air flows.
• The external dimensions of the unit and the dimensions of the supply and return air connections.
• The arrangement of the doors and the space required to open them to access the various components.
Connections
• Ensure that all the pipe-work crossing walls or roofs are secured, sealed and insulated.
• To avoid condensation problems, make sure that all pipes are insulated according to the temperatures of fluids and type of rooms.
NOTE: The packaging protection fitted on the finned surfaces must be removed prior to start up.

• 14 • BALTIC-IOM-0412-E / Installation manual
INSTALLATION ON A ROOF MOUNTING FRAME
Roof opening dimensions
The roof opening dimensions & maximum slope are defined according mechanical drawings.
Sealing checks
Leveling adjustable roofcurbs
Above all, ensure that all the adjustable returns are facing outward. They could be turned inside-out for transport.
Place the roof mounting frame on the trimmer beam by first lining up the inlet and the outlet opening.
After levelling the frame, secure the adjustable returns on the trimmer.
When the frame is correctly positioned, it is essential to secure the assembly with a disconnected stitched welded seam (20 to 30 mm
every 200 mm) or self taping screw diameter M6 along the outside or by using an alternative method.
IMPORTANT note: Prior to put the machine on the curbs make sure polyethylene foam is fitted on the curb
upper flange side (must be delivered with the curb).
IMPORTANT NOTE: Securing the curb

• 15 •BALTIC-IOM-0412-E / Installation manual
IMPORTANT note: Prior to put the machine, make sure to put a polyethylene foam on the curb upper flange
side (must be delivered in the curb package).
INSTALLATION ON A ROOF MOUNTING FRAME
Positioning the rooftop on adjustable roofcurbs

• 16 • BALTIC-IOM-0412-E / Installation manual
NON ADJUSTABLE NON ASSEMBLED ROOFCURB INSTALLATION
Frame parts packing
Different parts are used in the assembly of this roof mounting frame. There are delivered stacked on a pallet.
Water foam - 5680255T