Bryant 548J***D - Manual

548J***D

SINGLE PACKAGE ROOFTOP

HIGH--EFFICIENCY HEAT PUMP UNITS

WITH FIELD--INSTALLED ELECTRIC HEAT

SIZES 17 & 24 WITH PURON

R

(R--410A) REFRIGERANT

Submittal Data

Certified to ISO

Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.

9001:2000

DESCRIPTION

548J***D units are one--piece, two--stage heat pump units

that are low profile, prewired, tested and charged at the

factory. These are intended for installation on a roof curb

accessory (ordered separately), or for slab mounting (for

horizontal duct connections). Units are designed to accept

field--installed electric heaters. Units may be ordered with

various factory--installed options. Field--installed accessories

are also available.

STANDARD FEATURES

Base Unit

S

Puron (R--410A) HFC refrigerant

S

EER’s up to 10.8

S

IEER’s up to 11.5

S

COP’s up to 3.3

S

ASHRAE 90.1 energy compliant

S

Rated in accordance with AHRI Standard 340/360

S

Designed in accordance with Underwriters’ Laboratories
Standard 1995

S

Two--stage cooling capacity control on all models

S

Non--corrosive composite sloping design; side or center drain
condensate pan. Meets ASHRAE Standard 62

S

Cooling operating range from 30

_

F up to 115

_

F

(--1

_

C up to 46

_

C).

S

Dedicated vertical nd horizontal airflow models available,
ordered as factory option. No special kits required

S

Two--inch disposable return air filters

S

Thru--the--bottom power entry capability

S

Single point electric connections on field--installed electric heat
units

S

24--volt control circuit protected with resettable circuit breaker
and 75--VA transformer

S

Belt drive, constant torque, permanently lubricated
evaporator--fan motor on all size units.

S

Totally enclosed condenser motors with permanently lubricated
bearings

S

State--of--the--art defrost control board, easily configured for
defrost cycles of 30, 60, 90, or 120 minutes.

S

Centralized Terminal Board for component and unit wiring
connections.

S

Loss of Charge, High--Pressure, and Freeze Protection switches

S

Full perimeter base rail with built--in rigging adapters and fork
truck slots.

Cabinet

S

Access panels with easy grip handles

S

Innovative, easy starting, no strip screw features on unit access
panels.

S

Pre--painted exterior panels and primer--coated interior panels
tested to 500 hours salt spray protection

S

Fully insulated cabinet

S

Tool--less filter access door

Refrigerant System

S

Acutrol

t

refrigerant metering system

S

Liquid line filter drier

S

Scroll compressors with internal line--break overload protection

S

Indoor and outdoor coils constructed of aluminum fins
mechanically bonded to seamless copper tubes.

S

Removable gauge line plugs for reading refrigerant pressure
with unit panels in place

S

Four--way reversing valve operation

S

Suction Line Accumulator standard -- prevents excessive liquid
flood back of refrigerant to the compressor even during the start
of the defrost cycle.

Standard Parts Warranty

S

5--year electric heater (field--installed)

S

5--year compressor

S

1--year parts