Bryant 574B - Manuals

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Manual

Manual Bryant 574B

Summary

Page 2 - MODEL NUMBER NOMENCLATURE

— 2 — Corporate thermostats include the Time Guard® II anti-short cycle protection circuitry. If a non-corporate thermostat withoutanti-short cycle protection is used the Time Guard II field in-stalled anti-short cycle kit is recommended. Refrigerant system is designed to provide dependability. Liqu...

Page 3 - Page

— 3 — ARI* CAPACITIES COOLING CAPACITIES AND EFFICIENCIES UNIT 574B NOMINAL TONS STANDARD CFM NET COOLING CAPACITIES (Btuh) EER @A‡ SEER† SOUND RATINGS** (dB) 024040 2 800 24,000 11.0 13.0 72 030040036060 2-1/2 036060036090 3 1150 36,000 11.0 13.0 72 042060042090 3-1/2 11.0 048090048115048130 4 1450...

Page 4 - HEATING CAPACITIES AND EFFICIENCIES; — Annual Fuel Utilization Efficiency; HEATING INPUT

— 4 — ARI* CAPACITIES (cont) HEATING CAPACITIES AND EFFICIENCIES LEGENDAFUE — Annual Fuel Utilization Efficiency NOTE: Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. OUTDOOR SOUND: OCTAVE BAND DATA — DECIBELS (Lw(A)) UNIT 574B HE...

Page 5 - PHYSICAL DATA; Based on altitude of 0 to 2000 ft.

— 5 — PHYSICAL DATA † Required filter sizes shown are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling air- flow or the heating airflow velocity of 300 ft/min for throwaway type or 450 ft/min for high-capacity type. Air filter pressure drop for non-standa...

Page 7 - OPTIONS AND ACCESSORIES; Factory-installed options

— 7 — OPTIONS AND ACCESSORIES Factory-installed options Coil options include Tin-Plated* indoor hairpins, copper/copper and vinyl-coated construction for refrigerant coils. Units areshipped standard with copper tube/aluminum fin construction.See model number nomenclature for coil options. *Tin-Plate...

Page 8 - Filter Rack

— 8 — FILTER ACCESS DOOR(HORIZONTALAPPLICATION ONLY.)DO NOT REMOVEFROM DOWNFLOWDISCHARGE. REPLACEMENTPANEL HOLE FORECONOMIZERWIRING HARDNESS DOORLATCH ANGLE HINGED FILTERACCESS DOOR INSTALL FILTER ACCESSDOOR STICKER ALUMINUMFILTER RAINHOOD 17 13/32(442mm) 16 1/4”(413mm) 11 13/32”(290mm) A99315 Filte...

Page 11 - ACCESSORY DIMENSIONS; Gasket around; Roof Curb for Small Cabinet; Roof Curb for Large Cabinet; ROOF CURB; UNIT SIZE; Roof Curb Dimensions

— 11 — ACCESSORY DIMENSIONS C00076 Gasket around outer edge Insulateddeck pan Gasket around duct S/A R/A HVAC unit base *Gasketing outer flange Flashing field supplied Roofing material field supplied Cant strip field supplied *Provided with roofcurb Roof Duct work field supplied Insulation (field su...

Page 12 - TOTAL WEIGHT

— 12 — SELECTION PROCEDURE (WITH EXAMPLE) I DETERMINE COOLING AND HEATING REQUIREMENTSAT DESIGN CONDITIONS: Given:Required Cooling Capacity (TC)....................... 34,500 BtuhSensible Heat Capacity (SHC)......................... 26,000 BtuhRequired Heating Capacity..................................

Page 13 - See Legend and Notes on page 15.

— 13 — PERFORMANCE DATA STANDARD INDOOR ECM MOTOR COOLING CAPACITIES 574B024 COOLING PERFORMANCE TABLE Temp (F) Outdoor Air Entering Condenser Evaporator Air — CFM / BF 800/0.026 900/0.032 1000/0.04 Evaporator Air — Ewb (F) 62 63* 67 72 62 63* 67 72 62 63* 67 72 75 TCSHCkW 24.0 24.5 26.5 29.1 24.6 2...

Page 14 - STANDARD INDOOR ECM MOTOR

— 14 — PERFORMANCE DATA (cont) STANDARD INDOOR ECM MOTOR COOLING CAPACITIES (cont) See Legend and Notes on page 15. 574B036 COOLING PERFORMANCE TABLE Temp (F) Outdoor Air Entering Condenser Evaporator Air—CFM/BF 1100/0.06 1225/0.07 1400/0.08 Evaporator Air — Ewb (F) 62 63* 67 72 62 63* 67 72 62 63* ...

Page 15 - Outdoor Air

— 15 — PERFORMANCE DATA (cont) STANDARD INDOOR ECM MOTOR COOLING CAPACITIES (cont) 574B048 COOLING PERFORMANCE TABLE Temp (F) Outdoor Air Entering Condenser Evaporator Air—CFM/BF 1260/0.06 1400/0.06 1600/0.08 Evaporator Air — Ewb (F) 62 63* 67 72 62 63* 67 72 62 63* 67 72 75 TCSHCkW 45.0 45.8 49.6 5...

Page 18 - NATURAL GAS ONLY; Therefore, heat input rate should be reduced at higher altitudes.; 74B ECM WET COIL PRESSURE DROP; UNIT; LIQUID PROPANE ONLY

— 18 — 574B ECM AIR FLOW VS. TEMPERATURE RISE CHART PERFORMANCE DATA (CONT) ECONOMIZER/1-IN. FILTER PRESSURE DROP (in. wg) UNIT COOLING SIZE RATED GAS INPUT RATE (X 1000) AIRFLOW SETTING EAST SELECT™ (SCFM) CALCULATED TEMPERATURE RISE MIN. TEMP RISE MAX TEMP RISE MAX DISCH. TEMP 574B 024 40 800 36.5...

Page 19 - TYPICAL PIPING AND WIRING; TOP COVER

— 19 — TYPICAL PIPING AND WIRING INDOORTHERMOSTAT DISCONNECTPER NEC* FROMPOWERSOURCE RETURNAIR TOP COVER FROMGAS LINE *NEC - NATIONAL ELECTRICAL CODE ROOF RETURN-AIRFLEXIBLE DUCT CEILING CONCENTRIC DIFFUSER BOX(FIELD-SUPPLIED) SUPPLY-AIRFLEXIBLE DUCT ROOF-MOUNTINGCURB C00022 C00023

Page 20 - APPLICATION DATA

— 20 — APPLICATION DATA Condensate trap — A 2-in. condensate trap must be field supplied. Ductwork — Secure downflow discharge ductwork to roof c u r b. Fo r h o r i zo n t a l d i s c h a r g e a p p l i c a t i o n s, a t t a c hductwork to unit with flanges. To convert a unit to downflow discharg...

Page 21 - ELECTRICAL DATA

— 21 — C99024 ELECTRICAL DATA 574B (STANDARD) ELECTRICAL DATA UNIT SIZE 574B V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR FAN MOTOR INDOOR FAN MOTOR POWER SUPPLY Min Max RLA LRA FLA FLA MCA MAX FUSE OR BKR 024 208/230–1–60 187 253 13.5 61.0 0.8 4.3 22.0/22.0 30/30 030 208/230–1–60 187 253 16.9 73.0 0.8 ...

Page 24 - On a call for heating, terminal “W” of the thermostat; Cooling —; When the room temperature rises to a point that is; The indoor blower; operation with a call; CONTROLS

— 24 — OPERATING SEQUENCE Heating — On a call for heating, terminal “W” of the thermostat is energized, starting the induced-draft motor. When the hall-effect sensor on the induced-draft motor senses that it hasreached the required speed, the burner sequence begins. Thisfunction is performed by the ...

Page 27 - GUIDE SPECIFICATIONS

— 27 — PACKAGED GAS HEATING/ELECTRIC COOLINGUNITS CONSTANT VOLUME APPLICATION HVAC GUIDE SPECIFICATIONSSIZE RANGE: 2 TO 5 TONS, NOMINAL COOLING 40,000 TO 130,000 BTUH,NOMINAL HEATING INPUT BRYANT MODEL NUMBER: 574B PART 1 — GENERAL 1.01 SYSTEM DESCRIPTION Outdoor rooftop mounted, gas heating/electri...

Page 28 - GUIDE SPECIFICATIONS continued

— 28 — SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE UNIT MUST BE INSTALLED IN ACCORDANCE WITH INSTALLATION INSTRUCTIONS Cancels: NEW Form PDS 574B.24.1 © 2003 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indpls., IN 46231 PRINTED IN U.S.A. Catalog No. 5257-400 8-03 K. Electrical Requ...