Bryant 548J***D Manual De Usuario
548J***D
SINGLE PACKAGE ROOFTOP
HIGH--EFFICIENCY HEAT PUMP UNITS
WITH FIELD--INSTALLED ELECTRIC HEAT
SIZES 17 & 24 WITH PURONR (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.
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
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
condensate pan. Meets ASHRAE Standard 62
S
Cooling operating range from 30_F up to 115_F
(--1_C up to 46_C).
(--1_C up to 46_C).
S
Dedicated vertical nd horizontal airflow models available,
ordered as factory option. No special kits required
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
units
S
24--volt control circuit protected with resettable circuit breaker
and 75--VA transformer
and 75--VA transformer
S
Belt drive, constant torque, permanently lubricated
evaporator--fan motor on all size units.
evaporator--fan motor on all size units.
S
Totally enclosed condenser motors with permanently lubricated
bearings
bearings
S
State--of--the--art defrost control board, easily configured for
defrost cycles of 30, 60, 90, or 120 minutes.
defrost cycles of 30, 60, 90, or 120 minutes.
S
Centralized Terminal Board for component and unit wiring
connections.
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.
truck slots.
Cabinet
S
Access panels with easy grip handles
S
Innovative, easy starting, no strip screw features on unit access
panels.
panels.
S
Pre--painted exterior panels and primer--coated interior panels
tested to 500 hours salt spray protection
tested to 500 hours salt spray protection
S
Fully insulated cabinet
S
Tool--less filter access door
Refrigerant System
S
Acutrolt 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.
mechanically bonded to seamless copper tubes.
S
Removable gauge line plugs for reading refrigerant pressure
with unit panels in place
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.
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