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Mars COMFORT-AIRE CMA36SD-1 User Manual

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INSTALLATION , OPERATION &
MAINTENANCE MANUAL
Horizontal/Side Discharge
Condensing Units
Models
CMA12SD-0
CMA18SD-1
CMA24SD-1
CMA30SD-1
CMA36SD-1
CMA48SD-1
517.787.2100 • www.marsdelivers.com
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Mars COMFORT-AIRE CMA36SD-1 Specifications

General IconGeneral
BrandMars
ModelCOMFORT-AIRE CMA36SD-1
CategoryHeat Pump
LanguageEnglish

Summary

Safety Precautions

General Warnings

Key warnings regarding installation defects, part usage, location, and wiring.

General Cautions

Cautions for grounding, flammable gas locations, and drainage piping. Important for safe operation.

Operating Instructions

How to Operate the Unit

Step-by-step guide on setting thermostat and fan for cooling operation. Covers basic usage.

Restarting the Unit

Important note on waiting before restarting the unit to prevent damage.

Periodic Maintenance

Guidance on cleaning air filters and outdoor unit coils for optimal performance.

Maintenance Safety Warning

Warning to turn off power before maintenance to prevent electrical shock or death.

Alterations and Replacement Parts

Information on how alterations or non-authorized parts void warranty and affect safety.

General Product Information

Unpacking and Inspection

Instructions for checking the unit upon delivery for damage and filing claims if necessary.

Cooling Operation Temperature Limits

Specifies the operational temperature range for cooling and warranty implications.

Indoor Unit Compatibility and Efficiency

Details on compatibility with indoor units and the importance of proper metering devices.

Thermostat and Fan Time Delay

Guidance on thermostat selection, fan time delay, and placement recommendations.

Filter Drier Requirement

Warning: An in-line filter drier is required; its absence voids the warranty.

Outdoor Unit Installation

Outdoor Unit Location and Mounting

Guidelines for selecting an optimal location, including proximity and protection from elements.

Airflow and Clearance Requirements

Ensuring unobstructed airflow and maintaining clearances around the unit, referencing diagrams.

Outdoor Unit Anchoring and Drainage

Instructions for securely anchoring the unit and ensuring proper condensate drainage.

Outdoor Unit Dimensions and Clearances

Provides specific dimensions and clearance requirements for different model sizes.

Unit Wiring

Electrical Wiring and Supply Voltage

Guidelines for electrical wiring, NEC/local codes, and supply voltage requirements.

Outdoor Unit Wiring Connection Steps

Steps for connecting wiring to the outdoor unit, including cover removal and cable connections.

Wiring Connection Caution

Warning about potential malfunctions and safety hazards from incorrect wiring.

Electrical Specifications Table

Table detailing power supply, voltage, circuit breaker, and ampacity for different models.

Outdoor Unit Terminal Block Diagrams

Diagrams showing terminal block connections for 12K and 18K-48K models.

Thermostat Wiring Note

Note referring to thermostat manual for additional wiring instructions.

Outdoor Unit Circuit Diagrams (12K-18K)

Circuit diagrams for 12K and 18K models.

Outdoor Unit Circuit Diagrams (24K-36K)

Circuit diagrams for 24K, 30K, and 36K models.

Outdoor Unit Circuit Diagram (48K)

Circuit diagram for the 48K model.

Circuit Diagram Disclaimers

Disclaimers stating diagrams are for reference; actual wiring may differ.

Refrigerant Piping

Refrigerant Piping Considerations

Factors affecting system capacity, efficiency, and oil return, including line length and bends.

Refrigerant Piping Specifications

Table detailing max refrigerant line length and vertical lift for different models.

Refrigerant Tubing Installation

Guidance on installing tubing, insulation, and P-traps for proper refrigerant flow.

Refrigerant Discharge Warning

Warning against illegal refrigerant discharge; emphasizes proper reclaiming methods.

Leak Test, Evacuation & Release of Refrigerant

Refrigerant Charge and Service Valves

Information on the unit's R-410a charge and the state of service valves.

Leak Test and Evacuation Procedure

Step-by-step guide for performing leak tests, evacuation, and refrigerant release.

Initial Start-Up & Checks

Unit Operation Overview

Description of automatic unit operation based on thermostat settings.

Start-Up Prerequisites

Essential steps before operating the unit: panel installation, power connection, and thermostat setup.

Initial Start-Up Steps

Sequence of checks for thermostat, fan, and system operation before field charging.

Field Charging

Guidance on system charge, factors affecting it, and using metering devices for optimal performance.

Final Inspection Procedures

Final visual checks, performance review, and homeowner orientation.

Performance Verification Charts

Charts to reference operating pressures against ambient temperature for performance verification.

Charging by Pipe Length

Formula and table for calculating additional refrigerant needed based on line set length.

MARS/HEAT CONTROLLER LIMITED EXPRESS WARRANTY

Warranty Scope and Coverage

Overview of the 'CMA' Series warranty coverage and congratulations.

Limited Parts and Compressor Warranties

Details of the one-year parts and five-year compressor limited express warranties.

Commercial Use Warranty

Specifies the one-year parts warranty for commercial or non-residential applications.

Warranty Exclusions and Conditions

Lists items not covered and requirements for warranty coverage, including proper operation and installation.

Warranty Duration, Registration, and Remedy

Information on warranty start date, proof of purchase, and the sole remedy being part replacement.

Limitation of Liability and Obtaining Service

Legal limitations on warranties and procedures for claiming warranty service.

Warranty Purchase Record

Section for recording purchase details for warranty purposes.

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