Lennox BAC 042 SNM 3M, BAC 024 SNM 3M, BAC 038 SNM 3M, BAC 052 DNM 3M, BAC 057 DNM 3M Installation, Operating And Maintenance Manual

...

20 - 85 kW

Installation, operating and maintenance

BALTIC-IOM-0412-E

BALTIC™ Rooftop units air cooled

BALTIC™

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™

6 7 7 8 9 10

12 12 12 13 13 13 13

14 14 14 15

16 17 17 17 18

18 19 20 21 23 24 26

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 ﬁ tted 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 modiﬁ cations 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 ﬂ ue 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 modiﬁ ed 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 qualiﬁ ed 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 speciﬁ cations 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 qualiﬁ ed 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 qualiﬁ cation and authorisation.

Work on the refrigerating circuit(s):

• Monitoring of the pressures, draining and ﬁ lling 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 qualiﬁ ed 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 deﬁ ned 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 deﬁ ned by EN 61000-3-11 standard relative to the voltage variation, ﬂ uctuation and ﬂ icker 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 ﬁ re, 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 conﬁ guration is, respect a minimal duct’s length of 2 m before any elbow or any duct’s section change.

• Directional vanes must be ﬁ tted inside any elbow ﬁ tted in return or supply ductwork closer than 5 meter to the machine connection ﬂ anges.

Filters:

• Do the ﬁ lters ﬁ re classiﬁ cation’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 qualiﬁ ed 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 speciﬁ cations 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 ﬁ lter

F4 ﬁ lter

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 •

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 ﬁ gure 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.

• 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

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 ﬂ anges at the bottom of the roofcurb Any ducting weight above 100 kg must be ﬁ xed 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 ﬂ owcurb and horizontal extraction ﬂ ow curb must be secured to the ground using existing ﬁ xing 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 speciﬁ ed 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 ﬁ lm 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 speciﬁ cations 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 conﬁ rmed 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 sufﬁ cient space for the equipment?

• Is the surface on which the equipment is to be installed sufﬁ ciently 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 speciﬁ cations?

• Is drainage provided for the condensate?

• Is there sufﬁ cient 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 ﬂ ow 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 airﬂ ow 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 ﬂ ows.

• 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 ﬂ uids and type of rooms.

NOTE: The packaging protection ﬁ tted on the ﬁ nned 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 deﬁ ned 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 ﬁ rst 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 ﬁ tted on the curb upper ﬂ ange 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 ﬂ ange 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

• 17 •BALTIC-IOM-0412-E / Installation manual

NON ADJUSTABLE NON ASSEMBLIED ROOFCURB INSTALLATION

Installation

The roof mounting frame provides support when the units are installed in down-ﬂ ow conﬁ gurations. The non adjustable, non assembled roof mounting frame can be installed directly on decks having adequate structural strength or on roof supports under deck. See page 24 for frame dimensions, location of supply and return air opening NOTE: frame assembly must be installed ﬂ at, levelled within 5mm per linear meter in any direction.

Assembly

The frame is supplied as a single package and shipped folded down for ease of transport and handling. It is easy ﬁ eld assembled as all parts required are supplied with the frame.

Securing the frame

To ensure proper mating with units, it is mandatory that the roof mounting frame be squared to roof structure as follows:

• With frame positioned levelled in the desired location on roof trusses, tack weld corner of frame.

• Measure frame diagonally from corner to corner as shown above. These Dimensions must be equal in order for the fame to be square.

• It is extremely important to sight frame from all corner to ensure it is not twisted across. Shim frame under any low side. The maximum slope tolerance is 5mm per linear meter in any direction.

• After the frame has been squared, straightened and shimmed, weld or secure the frame to the roof deck.

NOTE: It must be securely fastened to the roof as per local codes and regulations.

Unit ﬂ oor

Unit support rail

Roof curb

Air duct

Unit ﬂ oor insulation + gasket

• 18 •

BALTIC-IOM-0412-E / Installation manual

NON ADJUSTABLE NON ASSEMBLIED ROOFCURB INSTALLATION

Sealing checks

CURBING AND FLASHING

Outside of frame must be insulated with rigid type insulation. We recommend a minimum of 20 mm thick insulation.

Check that the insulation is continuous, counter ﬂ ash and seal around the frame as shown. CAUTION: To be effective, the upstream must end below the drop edge. Where pipes and electrical conduits extend through the roof, ﬂ ashing must conform to local codes of practice

Before installing the equipment, make sure that seals are not damaged and check that the unit is secured to the mounting frame. Once in position, the bottom of the equipment must be horizontal. The installer must comply with local authority standards and speciﬁ cations.

Rooftop

Roocurb

Sealing

Thermal

400 Mini

IMPORTANT NOTE: After assembling the kit curb and prior to put the machine on it, make sure to put a polyethylene foam on the curb upper ﬂ ange side (must be delivered in the curb package).

• 19 •BALTIC-IOM-0412-E / Installation manual

HEAT RECOVERY - GENERAL DESCRIPTION

Heat recovery modules have following interests:

• in winter season and heating mode, the heat in the extract air is exchanged with the fresh air ;

• conversely, in summer season and cooling mode, the heat of the fresh air is transferred to the extract air.

HRMV and HRMH are two plates heat exchanger modules, that differ from each other by their horizontal or vertical conﬁ guration.

TRMO is a thermodynamic heat recovery module, included in the machine. Its main interests are:

• a variable fresh air rate from 25 to 100%,

• a high COP in winter when pre-heating the fresh air due to a favorable evaporating temperature, especially with high air ﬂ ow rate ;

• a high EER in summer when pre-cooling the fresh air due to a favorable condensing temperature, especially with high air ﬂ ow rate.

For those reasons, TRMO will be more suitable than HRMV/HRMH in areas where the difference between indoor temperature and outdoor temperature is low. For example, in Mediterranean areas, where winter temperatures are not very cold or summer temperatures are not very high.

• 20 •

VRHS

HRVS

VRVS

HRHS

BALTIC-IOM-0412-E / Installation manual

PLATE HEAT RECOVERY CONFIGURATIONS

ERVF + HRMV

EBHO + HRMH

Return

Fresh air

• 21 •

5 mm

BALTIC-IOM-0412-E / Installation manual

PLATE HEAT RECOVERY INSTALLATION - ERVF + HRMV

Detail B

Detail A

1. Install the ﬂ owcurb according to previous section.

2. Before installing the rooftop: a. Fix the brackets (5 pieces) on the curb by 24 screws (6x16 mm); b. ADJUST the position of the attachment bracket so that it is

5 mm above the support surface (without the foam);

c. Install the foam (25x10 mm) on the upper part of the ﬂ owcurb.

5. Place the two upper mounting bars through the two top slots.

6. Install the heat recovery module on the bracket by taking care

to position properly the lower mounting bar.

Don't forget to remove the lifting covers from the module.

7. Slide the 'T' plate into the lifting lug and place the bolt through it. On the opposite side, place also the bolt (detail A).

8. Finally tighten the heat recovery module with the 4 bolts 8x60mm to compress the foam (2 bolts on the upper mounting bars (detail B) and the 2 bolts placed in step 7).

3. a.

Fix the lower mounting bar of the heat recovery module using 4 screws (6x16 mm) and remove the side doors;

b. Make sure that the foam is not damaged (20x15 mm).

4. Install the Rooftop and remove the lifting covers.

• 22 •

BALTIC-IOM-0412-E / Installation manual

PLATE HEAT RECOVERY INSTALLATION - EBHO + HRMH

PLATE HEAT ELECTRICAL CONNECTIONS

1. Make sure that the support surface enables to install the rooftop and the heat recovery module perfectly horizontal.

2. a.

Fix the lower mounting bar of the heat recovery module using

4 screws (6x16 mm) and remove the side doors

;

b. Make sure that the foam is not damaged (20x15 mm).

3. Install the rooftop and remove the lifting covers.

4. Place the two upper mounting bars through the two top slots.

5. Install the heat recovery module by taking care to position properly the lower mounting bar.

Don't forget to remove the lifting covers from the module.

6. Slide the 'T' plate into the lifting lug and place the bolt through it. On the opposite side, place also the bolt ( detail A).

7. Finally tighten the heat recovery module with the 4 bolts 8x60mm to compress the foam (2 bolts on the upper mounting bars ( detail B ) and the 2 bolts placed in step 6).

Detail B

Detail A

Two components have to be connected in the space between the plate heat exchanger and the economizer:

• For the air pressostat, connect and tighten the 2 spade-tips on terminal 1 and 3 (no polarity) :

• For the actuator, assembly the two parts of the connector:

• 23 •

VRHS

HRVS

VRVS

HRHS

BALTIC-IOM-0412-E / Installation manual

THERMODYNAMIC HEAT RECOVERY CONFIGURATIONS

ERVF + TRMO

EBHO + TRMO

Return

Fresh air

• 24 •

TRMO

ABA054 ARA073 ARA081

TGEL10-6.5 TGEL10-9 TGEL10-9

2.5 kg 3.5 kg 4.5 kg

BALTIC-IOM-0412-E / Installation manual

THERMODYNAMIC HEAT RECOVERY - SERVICE MANUAL

1. REFRIGERATION CIRCUIT

Frigoriﬁ c components access:

Compressor is located in the ﬁ x condenser part. Its access for electrical checking and pressure taps (HP and LP) is made through the screwed access door behind the hinged coil.

4-way valve, thermostatic expansion valve, dryer, and sensors are located on the e-Drive™ supply compartment.

C-box D-box E-box

Compressors

Thermostatic expansion valves

Refrigerant load

WARNING! During the settings, wait until the economizer is fully closed or opened, since it takes 1-2 minutes to switch.

Electrical components:

• For D and E-box, speciﬁ c TRMO components are located in the electrical box.

• For C-box, speciﬁ c TRMO components are located on the back of the electrical box, and can be accessible from the supply e-Drive™ compartment.

Circuit speciﬁ cations:

2. COMMISSIONING

Electrical connections:

• All wire connections are factory made.

Starting up:

• CLIMATIC™ conﬁ guration:

- Power the unit

- Check the conﬁ guration of the CLIMATIC™ 60 with the DS60 in expert mode. See § Control Manual / Conﬁ guration

• Flow rate settings: Make sure that both supply and exhaust air ﬂ ow are balanced. See section EBHO or ERVF. Balancing is correctly set if:

- with Test = 'B.Nom 100%': at 100% fresh air, set the exhaust Flow 3864 = supply ﬂ ow 3333;

- then switch Test = 'B.Nom 0%':

1. reduce coefﬁ cient 3866 until the louvers are closed;

2. then if the ﬂ ow (supply and exhaust) is far from the previous ﬂ ow settings, set coefﬁ cient 3335;

3. ﬁ nally, repeat step 1 and 2 to obtain a constant ﬂ ow whatever the fresh air mode.

- same settings have to be realized for reduced ﬂ ow - 3334 and 3865.

• Start the TRMO circuit (circuit 3): switch Test='C3--Cool'

- check the sense of rotation of the circuit 3 compressor;

- check frigoriﬁ c values (HP, LP, overheating and subcooling).

• Repeat the last operations with Test='C3--Heat'

• 25 •

ARA054WAA 4220463P

ARA073WAA 4220464R

ARA081WAA 4220465T

4310508K

4310509L

4310510M

4310511N

4310512P

4310513R

TGEL10-6.5 TRMO 4720940L

TGEL10-9 TRMO 4720913W

STF0413G 4740100M

24V 50 4740103R

HP 42bar OFF 4730184H

HP 4/20mA -1/45bar 4770207M

LP 4/20mA -1/20bar 4770208N

BE60 4770668P

4770709Z

BALTIC-IOM-0412-E / Installation manual

THERMODYNAMIC HEAT RECOVERY - SERVICE MANUAL

3. SERVICE DIAGNOSTIC

Refrigeration

Fault Possible causes and symptoms Solution

Low LP and LP cut out

Alarm 317: main frigoriﬁ c issue Lack of charge, obstructed components

Alarm 327: too low LP

Freezing: wait that coil is defrosted by exhaust air; Air ﬂ ow too low on evaporating side (too low speed rate / fouled ﬁ lter or coil).

HP problem and HP cut out

Incorrect airﬂ ow rates

Check fan (exhaust or supply) function of the mode (Amps) and also ﬁ lter.

Refrigerant charge too high

Check the refrigerant charge load according to the refrigerant load table.

See also frigoriﬁ c diagnostic of BALTIC™ III section 'Refrigeration'.

Indoor or exhaust fan blower:

For both indoor supply fan and exhaust fan, same faults, causes and solutions than for BALTIC™ III are expected. See diagnostic of BALTIC™ III 'Indoor fan blower'.

4. SPARE PARTS LIST

Refrigeration components R410a Designation Family Code

Compressor

Comp.

Indoor coil

ID C-box TRMO Coil

ID D-box TRMO Coil

ID E-box TRMO Coil

Exhaust coil

Exhaust coil TRMO Coil

Expansion valve

Refrig.

4 way valve Refrig.

4 way valve coil Refrig.

HP pressostat Refrig.

HP sensor Refrig.

LP sensor Refrig.

Electrical & control components Designation Family Code

CLIMATIC™ extension

Control

Connector for BE60 Control

• 26 • BALTIC-IOM-0412-E / Installation manual

THERMODYNAMIC HEAT RECOVERY - CONTROL MANUAL

1. CONFIGURATION

Conﬁ guration of CLIMATIC™ 60 with the DS60 in expert mode for TRMO (with a modulating exhaust fan):

3813 RECOV. = Comp. for TRMO 3815 EXHAUST = Modulate for both ERVF & EBHO 3816 KIT 3817 Motor to be checked function of your need 3818 Fan

2. USE

Protection:

• Operating envelop Protection: compressor stopped during 6 minutes.

- 328: min HP = 20.5°C condensation;

- 329: max HP = 62°C condensation;

- 319: min LP = between -24.5°C and 1.6°C (function of the condensation temperature) during 5 min => freezing or air ﬂ ow on

evaporator issue;

- 327: max LP = 26°C.

- 317: limit LP -27°C during 120 sec => frigoriﬁ c failure (lack of refrigerant /closed components)

• Anti freezing Protection consist in defrosting the exhaust coil in heating mode with the extract air.

Control

• No speciﬁ c parameters have to be set for TRMO control.

• Operation:

- TRMO runs if there is heating or cooling needs;

- above 50% fresh air, TRMO compressor has priority to start;

- under 15°C return or under 20% fresh air, TRMO compressor is not authorized to start.

+ 72 hidden pages

Lennox BAC 042 SNM 3M, BAC 024 SNM 3M, BAC 038 SNM 3M, BAC 052 DNM 3M, BAC 057 DNM 3M Installation, Operating And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual