Bryant 38MURA User Manual

Specifications subject to change without notice.
INDUSTRY LEADING
FEATURES / BENEFITS
Energy Efficiency
• 14.7 - 18 SEER2 / 8.2 - 12.4 EER2 / 8.2 - 9.8 HSPF2
Sound
• Levels as low as 54 dBA
Design Features
• Small Footprint
• Integrated 24V and RS-485 communications
Reliability, Quality and Toughness
• Inverter-driven, variable speed, rotary Compressor
• Line lengths up to 213' (65 m)
• Low ambient operation on high heat models down to -22F
(-30C) without the use of wind baffles
• Conventional line set sizes
NOTE: Ratings contained in this document are subject to
change at any time. Always refer to the AHRI
directory (www.ahridirectory.org) for the most
up−to−date ratings information.
TABLE OF CONTENTS
PAGE
MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . 2
STANDARD FEATURES AND ACCESSORIES . . . . . . . . . . . . . . 3
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PERFORMANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PERFORMANCE - AIR HANDLER . . . . . . . . . . . . . . . . . . . . . . . 10
APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
CONNECTION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
24V CONNECTION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . 87
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Product Data
38MURA
Outdoor Unit Single Zone Ductless System
Sizes 1-1/2 to 5 Nominal Tons

Bryant 38MURA Specifications

General

Model	38MURA
Airflow	Up to 2000 CFM
Refrigerant	R-410A
Cooling Capacity	Up to 5 Tons
Stages	Variable-Speed
Cabinet	Galvanized Steel
Coil Options	Aluminum
Electrical Requirements	208/230V, 1 Phase
Configuration	Multi-Position (Upflow, Downflow, Horizontal)
Shipping Weight	Approx. 180 lbs

Summary

PRODUCT FEATURES AND BENEFITS

Energy Efficiency

Details SEER2, EER2, and HSPF2 ratings for cooling and heating.

Sound

Specifies sound pressure levels, noting levels as low as 54 dBA.

Design Features

Highlights small footprint and integrated communications.

Reliability, Quality and Toughness

Covers inverter compressor, line lengths, and low ambient operation.

MODEL NUMBER NOMENCLATURE

STANDARD FEATURES AND ACCESSORIES

Ease Of Installation

Covers features related to ease of installation.

Comfort Features

Lists comfort-related features like microprocessor controls and auto restart.

Energy Saving Features

Details energy efficiency aspects like inverter compressor and heating setback.

Safety And Reliability

Lists safety mechanisms for unit protection like time delay and overload protection.

Ease Of Service And Maintenance

Covers serviceability features such as diagnostics and pressure taps.

Application Flexibility

Mentions heaters for operational flexibility.

Accessories

Details accessories like rubber plugs with part numbers and quantity.

DIMENSIONS

CLEARANCES

PERFORMANCE DATA

AIR HANDLER

Provides performance ratings for indoor units.

Heat Pump (Standard Heat)

Lists SEER, EER, HSPF, and COP ratings for standard heat models.

Heat Pump (High Heat)

Lists SEER, EER, HSPF, and COP ratings for high heat models.

APPLICATION DATA

Unit Selections

Guidance on selecting the appropriate unit size based on load.

Unit Mounting (Outdoor)

Instructions and recommendations for outdoor unit installation.

REFRIGERANT LINES

Guidelines for refrigerant line sizing and installation.

WIRING AND ELECTRICAL INFORMATION

Power wiring

Instructions for connecting the power supply to the unit.

Communication wiring

Describes options for establishing indoor/outdoor unit communication.

CONNECTION DIAGRAMS

Visual aids for connecting communication wires.

24V CONNECTION DIAGRAMS

Diagrams for 24V thermostat and indoor unit connections.

SOUND DATA

ELECTRICAL DATA

Fan and Motor Specifications

Details fan diameter, motor type, FLA, HP, and output.

WIRING DIAGRAMS

Standard Models Wiring

Wiring diagram for standard outdoor unit configurations.

Size Specific Wiring Diagrams

Wiring diagrams tailored to specific unit sizes and types.

PRODUCT OVERVIEW AND SPECIFICATIONS

System Description

General overview of the outdoor air-cooled split system.

Agency Listings

Information on certifications and standards compliance.

Warranty

Warranty information for specifying engineers.

EQUIPMENT DETAILS

Unit Cabinet

Describes the construction and features of the unit cabinet.

Fans

Specifications for the outdoor fan and motor.

GUIDE SPECIFICATIONS

HORIZONTAL DISCHARGE SPLIT-SYSTEM HEAT PUMP

Defines the product category and nominal capacity range.

Compressor

Describes the compressor type and features.

Controls and Safeties

Lists the integrated operating controls and safety functions.

Electrical Requirements

Outlines power, voltage, and wiring requirements.