Bryant 548J*D Series Installation and user guide

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.
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
SPuron (R--410A) HFC refrigerant
SEER’s up to 10.8
SIEER’s up to 11.5
SCOP’supto3.3
SASHRAE 90.1 energy compliant
SRated in accordance with AHRI Standard 340/360
SDesigned in accordance with Underwriters’ Laboratories
Standard 1995
STwo--stage cooling capacity control on all models
SNon--corrosive composite sloping design; side or center drain
condensate pan. Meets ASHRAE Standard 62
SCooling operating range from 30_Fupto115_F
(--1_Cupto46_C).
SDedicated vertical nd horizontal airflow models available,
ordered as factory option. No special kits required
STwo--inch disposable return air filters
SThru--the--bottom power entry capability
SSingle point electric connections on field--installed electric heat
units
S24--volt control circuit protected with resettable circuit breaker
and 75--VA transformer
SBelt drive, constant torque, permanently lubricated
evaporator--fan motor on all size units.
STotally enclosed condenser motors with permanently lubricated
bearings
SState--of--the--art defrost control board, easily configured for
defrost cycles of 30, 60, 90, or 120 minutes.
SCentralized Terminal Board for component and unit wiring
connections.
SLoss of Charge, High--Pressure, and Freeze Protection switches
SFull perimeter base rail with built--in rigging adapters and fork
truck slots.
Cabinet
SAccess panels with easy grip handles
SInnovative, easy starting, no strip screw features on unit access
panels.
SPre--painted exterior panels and primer--coated interior panels
tested to 500 hours salt spray protection
SFully insulated cabinet
STool--less filter access door
Refrigerant System
SAcutroltrefrigerant metering system
SLiquid line filter drier
SScroll compressors with internal line--break overload protection
SIndoor and outdoor coils constructed of aluminum fins
mechanically bonded to seamless copper tubes.
SRemovable gauge line plugs for reading refrigerant pressure
with unit panels in place
SFour--way reversing valve operation
SSuction Line Accumulator standard -- prevents excessive liquid
flood back of refrigerant to the compressor even during the start
of the defrost cycle.
Standard Parts Warranty
S5--year electric heater (field--installed)
S5--year compressor
S1--year parts

2
SUBMITTAL DATA
Job Name
Architect
Engineer
Contractor
Unit Designation
PERFORMANCE DATA
Unit Operating Weight lb
Cooling
Net Total Capacity Btuh
Net Sensible Capacity Btuh
Compressor Power Input kW
at Outdoor Air Temperature _F
Indoor Entering Air db: _Fwb _F
CFM External Static Pressure in wg
EER
IEER
Curb Weight lb
Heating
Power Input to Unit kw
Integrated Capacity Btuh
Indoor Operating Air Temperature _Fdb
Outdoor Air Temperature _F (Winter Design)
Rating at 70% R.H. Outdoors kW Heater Selected
Heat/Cool Ratio
Electrical Capacity Required Btuh
COP High Low
ELECTRICAL DATA
Power Supply to Unit Volts Phase Hz
Minimum Circuit Amps Maximum Overcurrent Protection (Fuse Only)
548J***D

3
OPTIONS AND ACCESSORIES
FACTORY--INSTALLED OPTIONS (FIOPs)
jOpen protocol RTU Direct Digital Control (DDC)
LON, MODBUS, BACNET and Johnson N2 protocols.
jDedicated vertical discharge and return air units
jDedicated horizontal discharge and return air units
jThrough the base connectors electric conduit
jEconoMi$ertIV with controls and barometric relief
(vertical only)
jEconoMi$er2 with 4--20 mA actuator and barometric
relief only (for RTU--MP/OPEN or 3rd party EMS
system control)
jTwo--position motorized outdoor air damper
jNon--fused disconnect switch (80 A Max)
jPowered 115--volt convenience outlet
jNon--powered 115--volt convenience outlet
jHigh static indoor fan motor and drive
jReturn Air smoke detector
jSupply Air smoke detector
jSmoke detectors -- return and supply air
jPre--coated Al/Cu condenser coil
jE--coated Al/Cu condenser coil
jE--coated Al/Cu condenser and evaporator coil
jCu/Cu condenser coil
jCu/Cu condenser coil and evaporator coil
jCondenser hail guard — louvered style
jCO2sensor
OPTIONAL WARRANTIES
jComplete Unit Parts only up to 5 years
jComplete Unit Parts and Labor up to 5 years
Many other optional warranties are available.
See the Commercial Start--Up and Optional Extended
Warranty Price price pages for further information.
FIELD INSTALLED ACCESSORIES
jEconoMi$er IV with controls and barometric relief
— vertical or horizontal
jEconoMi$er2 with 4--20 mA actuator, barometric
relief, and no microprocessor — vertical or horizontal
jPower Exhaust — vertical or horizontal
jElectric heat
jSingle point kit
jTwo--position motorized outdoor air damper
jManual outdoor air damper 25%
jManual outdoor air damper 50%
jRoofcurb — 14 inch (356mm) tall
jRoofcurb — 24 inch (610mm) tall
jThru--the--bottom utility connection kit
jThru--the--curb utility connection kit
jTime Guard II compressor anti--cycle control
jOutdoor coil hail guard — louvered style
jLow ambient head pressure controller, down to --20_F
(--29_C)
jThermostats and Sensors
jPhase Monitor
jBarometric Relief hood (for horizontal economizers)
Economizer Sensors
jSingle Dry bulb control
jDifferential Dry bulb control
jSingle enthalpy control
jDifferential enthalpy control
jCO2-- wall mounted
jCO2-- duct mounted
548J***D

4
CERTIFIED DIMENSION 548J*17D
C10762
548J***D

5
CERTIFIED DIMENSION 548J*17D
C10763
548J***D

6
CERTIFIED DIMENSION 548J*24D
C10764
548J***D

7
CERTIFIED DIMENSION 548J*24D
C107X65
548J***D

8
ROOF CURB DETAILS -- SIZE 17 UNITS
C10139
548J***D

9
ROOF CURB DETAILS -- SIZE 24 UNITS
C10140
548J***D

10
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
E2010 Bryant Heating & Cooling Systems D7310 W. Morris St. DIndianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/10
Replaces: New
Catalog No. SUB548J---05
548J***D