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

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

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

CERTIFIED DIMENSION 548J*17D

C10762

548J***D

CERTIFIED DIMENSION 548J*17D

C10763

548J***D

CERTIFIED DIMENSION 548J*24D

C10764

548J***D

CERTIFIED DIMENSION 548J*24D

C107X65

548J***D

ROOF CURB DETAILS -- SIZE 17 UNITS

C10139

548J***D

ROOF CURB DETAILS -- SIZE 24 UNITS

C10140

548J***D

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

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