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Lennox BAH020SNM

Lennox BAH020SNM
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Providing indoor climate comfort
BALTIC R410A
BALTIC R410A-IOM-0708-E
Installation, operating
and maintenance

Table of Contents

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Lennox BAH020SNM Specifications

General IconGeneral
Cooling Capacity (BTU/h)20000
SEER16
Voltage (V)208/230
StagesSingle
SEER Rating16
Phase1
RefrigerantR-410A

Summary

TRANSPORT - HANDLING

DELIVERY CHECKS

Checks to ensure equipment is in good working order upon receipt.

RATING PLATE

Provides model reference, electrical specs, year, refrigerant type, and charge.

STORAGE

Procedures for medium to long-term storage to maintain equipment integrity.

TRANSPORT - HANDLING - WARNING

MANDATORY HANDLING DEVICES

Specifies required equipment for safe handling and lifting of units.

TRANSPORT - HANDLING

DIMENSIONS AND WEIGHTS

Table detailing unit dimensions (A, B, C, D) and weights for various models.

TRANSPORT - HANDLING

LIFTING THE UNITS

Diagrams showing lifting configurations for different unit boxes (B, C, D, E).

TRANSPORT - HANDLING

LIFTING THE ROOF CURBS

Dimensions and weights for adjustable and exhaust roof curbs.

MULTIDIRECTIONNAL ROOF CURB

Dimensions and weights for multidirectional roof curbs.

INSTALLATION

PRELIMINARY CHECKS

Checklist of essential points to verify before installing the unit.

INSTALLATION REQUIREMENTS

Guidelines for the installation surface and unit placement.

INSTALLATION

MINIMUM CLEARANCE AROUND THE UNIT

Table showing required clearances for different unit boxes.

INSTALLATION ON A ROOF MOUNTING FRAMES

POSITIONING ROOFCURBS

Recommendations for positioning adjustable roof mounting frames.

INSTALLATION ON A ROOF MOUNTING FRAMES

NON ADJUSTABLE NON ASSEMBLIED ROOFCURB

Explains frame parts and installation for non-adjustable roof mounting frames.

INSTALLATION ON A ROOF MOUNTING FRAMES

NON ADJUSTABLE NON ASSEMBLED ROOFCURB

Details the assembly and securing process for the non-adjustable roof curb.

INSTALLATION ON A ROOF MOUNTING FRAMES

SECURING THE CURB

Instructions for securing the roof curb assembly.

CURBING AND FLASHING

Guidance on insulation, counter flashing, and sealing for curbs.

INSTALLATION ON A ROOF MOUNTING FRAMES

Heat Recovery Installation

Step-by-step guide for installing the heat recovery module.

ECONOMISER AND EXTRACTION

Economiser

Explanation of the economiser function for free cooling.

Extraction

Description of extraction system function and fan operation.

ECONOMISER AND EXTRACTION

VERTICAL FLOW

Diagram showing vertical flow configuration with energy recovery and exhaust roofcurb.

MULTIDIRECTIONNAL ROOFCURB

Diagram showing multidirectional roofcurb configuration.

COMMISSIONING

ELECTRICAL CONNECTIONS

Ensuring power supply and checking wire connections for tightness.

PRELIMINARY CHECKS

Checks for motors, pulleys, wiring, and temperature probes.

COMMISSIONING

STARTING THE UNIT

Steps for starting the unit using a maintenance controller.

COMMISSIONING

POWERING THE UNIT

Procedures for powering up the unit and checking fan rotation.

RUN TEST

Performing cooling mode run tests and safety checks.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Table and diagrams showing options for BAC/BAH models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAG/BAM models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAC/BAH 035 models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAG/BAM 035 models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAC/BAH 045/055 models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAG/BAM 045/055 models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAC/BAH 065/075 models.

ARRANGEMENT DRAWINGS

WITH OPTIONS

Diagrams and options for BAG/BAM 065/075 models.

NON ADJUSTABLE ROOFCURB

ALL UNITS

Table for dimensions and power entry points for all units.

ADJUSTABLE ROOFCURB

020 030

Dimensions for BAC/BAH/BAG/BAM models 020 and 030.

ADJUSTABLE ROOFCURB

035

Dimensions for BAC/BAH/BAG/BAM model 035.

ADJUSTABLE ROOFCURB

045 055

Dimensions for BAC/BAH/BAG/BAM models 045 and 055.

ADJUSTABLE ROOFCURB

065 075

Dimensions for BAC/BAH/BAG/BAM models 065 and 075.

MULTIDIRECTIONAL HORIZONTAL ROOFCURB

020 030

Diagrams and dimensions for models 020 and 030.

MULTIDIRECTIONNAL HORIZONTAL ROOFCURB

035

Diagrams and dimensions for model 035.

MULTIDIRECTIONNAL HORIZONTAL ROOFCURB

045 055

Diagrams and dimensions for models 045 and 055.

MULTIDIRECTIONNAL HORIZONTAL ROOFCURB

065 075

Diagrams and dimensions for models 065 and 075.

EXHAUST VERTICAL ROOFCURB

020 030

Diagrams and dimensions for models 020 and 030.

EXHAUST VERTICAL ROOFCURB

035

Diagrams and dimensions for model 035.

EXHAUST VERTICAL ROOFCURB

045 055

Diagrams and dimensions for models 045 and 055.

EXHAUST VERTICAL ROOFCURB

065 075

Diagrams and dimensions for models 065 and 075.

EXHAUST HORIZONTAL ROOFCURB

020 030 035

Diagrams and dimensions for models 020, 030, and 035.

EXHAUST HORIZONTAL ROOFCURB

045 055

Diagrams and dimensions for models 045 and 055.

EXHAUST HORIZONTAL ROOFCURB

065 075

Diagrams and dimensions for models 065 and 075.

TRANSITION ROOFCURB

065 075

Diagrams and dimensions for models 065 and 075.

ENERGY RECOVERY OPTION

020 030

Diagrams for energy recovery option for models 020 and 030.

ENERGY RECOVERY OPTION

035

Diagrams for energy recovery option for model 035.

ENERGY RECOVERY OPTION

045 055

Diagrams for energy recovery option for models 045 and 055.

ENERGY RECOVERY OPTION

065 075

Diagrams for energy recovery option for models 065 and 075.

VENTILATION BELT TENSION

BELT TENSION

Instructions for checking and adjusting belt tension and pulley alignment.

VENTILATION: PULLEYS

MOUNTING AND ADJUSTING PULLEYS

Steps for fan pulley removal and installation.

MOTOR PULLEY INSTALLATION AND REMOVAL

Procedures for motor pulley installation and removal.

PULLEYS ALIGNMENT

How to check pulley alignment after adjustment.

VENTILATION: AIRFLOW BALANCING

SITE TEST AND MAINTENANCE

Guidance on measuring motor absorbed power for airflow adjustment.

VENTILATION: AIRFLOW BALANCING

CHECKING AIRFLOW AND ESP

Estimating airflow, total pressure, and external static pressure using fan curves.

VENTILATION: AIRFLOW BALANCING

PERFORMANCES ACCESSORIES PRESSURE DROPS

Table of pressure drops for various accessories and unit sizes.

VENTILATION: AIRFLOW BALANCING

EXAMPLE

Detailed example of calculating fan performance and ESP.

PERFORMANCE CURVES

ROOF TOP 020 030

Performance curves for AT12-9S units.

PERFORMANCE CURVES

ROOF TOP 035

Performance curves for AT15-11S units.

PERFORMANCE CURVES

ROOF TOP 045 055

Performance curves for AT15-15S units.

PERFORMANCE CURVES

ROOF TOP & EXHAUST ROOF CURB 065 075

Performance curves for AT15-11G2L units.

PERFORMANCE CURVES

EXHAUST ROOF CURB 020 030

Performance curves for AT10-10S units.

PERFORMANCE CURVES

EXHAUST ROOF CURB 035

Performance curves for AT10-8G2L units.

PERFORMANCE CURVES

EXHAUST ROOF CURB 045 055

Performance curves for AT10-10G2L units.

VENTILATION: FILTERS

FILTER REPLACEMENT

Instructions for removing and replacing filters and controller set points.

VENTILATION: FANSTART

AIRSOCK CONTROL

Guide to navigating the fan control menus for quick settings.

HEATING: HOT WATER COIL

HYDRAULIC CONNECTIONS

Steps for connecting and filling the hot water coil system.

FREEZE PROTECTION

Measures for freeze protection, including glycol and draining.

ELECTROLYTIC CORROSION

Warning about corrosion due to unbalanced earth connections.

HEATING: HOT WATER COIL

Pipe Internal Diameters (DN)

Table of internal pipe diameters for different model sizes.

HEATING: ELECTRIC HEATER

GENERAL INFORMATION

Overview of electric heaters, sizes, and control methods.

HEATING: GAS BURNER

PRELIMINARY CHECKS BEFORE START-UP

Safety checks and compatibility considerations before commissioning gas burners.

STARTING UP THE GAS BURNER

Steps for starting the gas burner and setting room temperature.

HEATING: GAS BURNER

Standard start-up Chronology

Timeline of operations during the gas burner start-up sequence.

HEATING: GAS BURNER

PRESSURE ADJUSTMENTS ON HONEYWELL PRESSURE REGULATING VALVE TYPE VK 4105 G

Procedure for adjusting gas pressure on the regulating valve.

High Heat Injection Pressure Checks

Steps to check and adjust outlet pressure for high heat injection.

HEATING: GAS BURNER

Low Heat Injection Pressure Checks

Procedure to check and adjust outlet pressure for low heat.

HEATING: GAS BURNER

BURNER SAFETY CHECKS

Tests for smoke extractor pressure switch, gas pressure switch, and ionisation probe.

HEATING: GAS BURNER

GAS BURNER FIRE-UP SEQUENCE

Flowchart detailing the sequence of operations for gas burner start-up.

HEATING: GAS BURNER

GAS BURNER TROUBLESHOOTING

Troubleshooting guide for gas burner faults reported on CLIMATIC.

HEATING: GAS BURNER

DIAGNOSTIC TABLE BALTIC GAS BURNER

Table mapping fault stages to possible actions and solutions.

HEATING: GAS BURNER

DISASSEMBLING THE GAS BURNER FOR MAINTENANCE PURPOSES

Safety recommendations and steps for disassembling the gas burner.

HEATING: MODULATING GAS BURNER

MODULATING GAS (UNDER PATENT INPI Mai 2004)

Explanation of the modulating gas actuator and its function.

STARTING UP THE GAS BURNER

Procedure for starting up the modulating gas burner.

HEATING: MODULATING GAS BURNER

PRESSURE ADJUSTMENTS ON HONEYWELL PRESSURE REGULATING VALVE TYPE VK 4105 G

Adjusting gas pressure on the regulating valve for modulating burners.

High Heat Injection Pressure Checks

Checking and adjusting outlet pressure for high heat in modulating burners.

HEATING: MODULATING GAS BURNER

Low Heat Injection Pressure Checks

Checking and adjusting outlet pressure for low heat in modulating burners.

HEATING: MODULATING GAS BURNER

BURNER SAFETY CHECKS

Safety checks for modulating gas burners.

GAS BURNER TROUBLESHOOTING

Troubleshooting for modulating gas burner valve flow issues.

DISASSEMBLING THE GAS BURNER FOR MAINTENANCE PURPOSES

Steps for disassembling modulating gas burners for maintenance.

CLIMATIC 50 - ROOFTOP - VERSION 23

WIRING CONNECTIONS

Details on connecting sensors, displays, and communication interfaces.

CUSTOMIZED INPUTOUTPUT

Configuring digital and analog inputs/outputs for unit control.

SCHEDULING - CLOCK SETTING

Setting up time zones, schedules, and clock settings for unit operation.

DC COMFORT AND DM 50 MULTI CUSTOMER DISPLAY

Overview and operation of the DC50/DM50 customer display units.

BMS ADDRESS TABLES

Mapping of BMS addresses for ModBus, Trend, BACnet, and Carel protocols.

ERROR CODES

List and explanation of error codes for the Climatic system.

PRINCIPLE SKETCHES

BAH 020 to 030 single circuit

Refrigerant circuit diagram for BAH models 020-030.

BAC 020 to 030 single circuit

Refrigerant circuit diagram for BAC models 020-030.

PRINCIPLE SKETCHES

BAH 035 to 055 dual circuit

Refrigerant circuit diagram for BAH models 035-055.

BAC 035 to 055 dual circuit

Refrigerant circuit diagram for BAC models 035-055.

PRINCIPLE SKETCHES

BAH 065 to 075 dual circuit

Refrigerant circuit diagram for BAH models 065-075.

BAC 065 to 075 dual circuit

Refrigerant circuit diagram for BAC models 065-075.

HOT WATER COIL DIAGRAM

NOTA:

Notes on supply pressure and temperature for the hot water coil.

MAINTENANCE DIAGNOSTIC

REFRIGERATION

Troubleshooting guide for refrigeration system faults and cut-outs.

LP PROBLEMS and LP CUT OUTS

Diagnosing low pressure issues and cut-outs.

MAINTENANCE DIAGNOSTIC

HP PROBLEMS AND HP CUT OUTS

Troubleshooting for high pressure issues and cut-outs.

INDOOR FAN BLOWER

Troubleshooting guide for indoor fan blower faults.

OUTDOOR AXIAL FAN

Troubleshooting guide for outdoor axial fan faults.

MAINTENANCE DIAGNOSTIC

ELECTRIC HEATER

Troubleshooting for electric heater faults.

WATER LEAKS

Diagnosing and resolving water leaks in the unit.

DC50 & DS50

Troubleshooting communication and display issues for DC50/DS50.

MAINTENANCE PLAN

Symbols and Legend

Explanation of symbols used in the maintenance plan.

NOTE:

Important notes regarding maintenance procedures and parts.

WARRANTY

TERMS AND CONDITIONS

General warranty terms and period.

ANTI-CORROSION WARRANTY

10-year warranty against casing corrosion and exclusions.

DO NOT CONFUSE THE WARRANTY WITH MAINTENANCE

Clarifies warranty applicability based on maintenance contracts.

CERTIFICATES

ISO 9001: 2000

Certificate details for ISO 9001:2000 compliance.

CERTIFICATES

DECLARATION DE CONFORMITE DU CONSTRUCTEUR

CE conformity declaration for European directives.

CERTIFICATES

NF CERTIFICAT COMPOSANT NF-SSI

NF certification for fire safety components.

CERTIFICATES

DETECTEUR OPTIQUE DE FUMEE

Certification for optical smoke detectors.

CERTIFICATES - G4 FILTERS

PROCES-VERBAL DE CLASSEMENT DE REACTION AU FEU DUN MATERIAU

Fire reaction classification report for materials.

CERTIFICATES - F7 FILTERS

PROCES-VERBAL DE CLASSEMENT DE REACTION AU FEU DUN MATERIAU

Fire reaction classification report for materials.

CERTIFICATES - CLIMAVER 202

PROCES-VERBAL DE CLASSEMENT DE REACTION AU FEU DUN MATERIAU

Fire reaction classification report for materials.

CERTIFICATES - CLIMAVER 274

PROCES-VERBAL DE CLASSEMENT DE REACTION AU FEU DUN MATERIAU

Fire reaction classification report for materials.

CERTIFICATES

Certificat

Gas appliance certification details.

CERTIFICATES

ATTESTATION DAPPROBATION DE SYSTEME DE QUALITE

Quality system approval attestation.

CERTIFICATES

ANNEXE lattestation dapprobation de systme de qualit

Annex to the quality system approval attestation.

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