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Rheem RHLL-HM3821JA User Manual

Rheem RHLL-HM3821JA
40 pages
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92-20521-32-15
SUPERSEDES 92-20521-32-14
WARNING
WARNING
!
These instructions are intended as an aid to qualified licensed
service personnel for proper installation, adjustment and
operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical
shock, property damage, personal injury or death.
ISO 9001:2008
AIR HANDLERS
FEATURING INDUSTRY STANDARD R-410A REFRIGERANT:
RHLL High Efficiency
RHSL Standard Efficiency
INSTALLATION INSTRUCTIONS
refrigerant

Table of Contents

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Rheem RHLL-HM3821JA Specifications

General IconGeneral
BrandRheem
ModelRHLL-HM3821JA
CategoryAir Handlers
LanguageEnglish

Summary

SAFETY INFORMATION

General Safety Precautions

Essential safety measures including power disconnect, qualified personnel, and duct leak risks.

Specific Safety Warnings

Warnings on Proposition 65, filter use, ductwork, and installation risks for user safety.

Environmental and Health Hazards

Information on carbon monoxide hazards and risks of operation during construction.

GENERAL INFORMATION AND SPECIFICATIONS

Efficiency, Receiving, and Clearances

Information on efficiency, receiving inspection, and required installation clearances.

Model Number and Availability

Explains model number coding and lists available configurations by voltage.

Unit Dimensions and Weights

Detailed physical dimensions, weights, and airflow data for unit selection.

INSTALLATION APPLICATIONS AND PROCEDURES

Vertical and Horizontal Installation

Guides for vertical upflow, downflow, and horizontal installation conversions.

Special Installation Environments

Guidelines for installing in unconditioned spaces and mobile/manufactured homes.

ELECTRICAL WIRING AND DATA

Wiring Requirements and Grounding

Essential requirements for power, control, and grounding wiring installations.

Blower Motor and Electric Heat Data

Electrical specifications for blower motors and electric heater kits.

Heater Kit Supplemental Information

Information on integrating heater kits and using standard circuit breakers.

AIRFLOW PERFORMANCE AND DUCTWORK

Airflow Limits and Performance Data

Defines operating limits and provides detailed airflow performance tables.

Ductwork Installation Guidelines

Guidelines for ductwork installation, design, and compliance with standards.

SYSTEM OPERATION AND MAINTENANCE

Sequence of Operation

Explains the operational sequence for cooling, heating, and blower functions.

Performance Calculations and Pre-Start Checks

Formulas for performance calculations and a pre-start checklist for safe operation.

Maintenance Procedures

Procedures for regular maintenance of filters, coils, motors, and other components.

Replacement Parts and Accessories

Information on ordering replacement parts and available accessories like floor bases and kits.

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