Instruction/ maintenance manual of the product 574B Bryant
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SINGLE-PACKAGED GAS HEATING/ELECTRIC COOLING UNITS Model 574B Sizes 024-060 2 to 5 Nominal Tons Low NOx Models Available Form No. PDS 574B.24.1 Single-Packaged Rooftop Products with Energy-Saving Fea- tures and Puron® refrigerant.
— 2 — Corporate thermostats include the Time Guard ® II anti-short cycle protection circuitry. If a non-corporate thermostat without anti-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.
— 3 — ARI* CAPACITIES COOLING CAPACITIES AND EFFICIENCIES UNIT 574B NOMINAL T ONS ST ANDARD CFM NET COOLING CAP A CITIES (Btuh) EER @A‡ SEER† SOUND RA TINGS** (dB) 024040 2 800 24,000 11.0 13.0 72 030040 036060 2-1/2 036060 036090 3 1150 36,000 11.
— 4 — ARI* CAPACITIES (cont) HEATING CAPACITIES AND EFFICIENCIES LEGEND AFUE — Annual Fuel Utilization Efficiency NOTE: Before purchasing this appliance, read important energy cost and efficiency information available from your retailer.
— 5 — PHYSICAL DATA † Required filter sizes sho wn are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling air- flo w or the heating airflow v elocity of 300 ft/min for thro waw ay type or 450 ft/min for high-capacity type.
— 6 — PHYSICAL DATA (cont) † Required filter sizes shown are based on the lar ger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling air - flo w or the heating airflow v elocity of 300 ft/min for thro waw ay type or 450 ft/min for high-capacity type.
— 7 — OPTIONS AND ACCESSORIES Factory-installed options Coil options include Tin-Plated* indoor hairpins, copper/copper and vinyl-coated construction for refrigerant coils. Units are shipped standard with copper tube/aluminum fin construction. See model number nomenclature for coil options.
— 8 — FIL TER ACCESS DOOR (HORIZONT AL APPLICA TION ONL Y .) DO NOT REMO VE FROM DO WNFLOW DISCHARGE. REPLACEMENT P ANEL HOLE FOR ECONOMIZER WIRING HARDNESS DOOR LA TCH ANGLE HINGED FIL TER ACCESS.
— 9 — BASE UNIT DIMENSIONS — 574B024-036 REQ ’ D CLEARANCES FOR OPERA TION AND SERVICING. in. (mm) Evaporator coil access side .................. 3 6 (914) P ower entry side (except for NEC requirements) ......... 3 6 (914) Unit top ..........
— 10 — REQUIRED CLEARANCE FOR OPERA TION AND SERVICING in. [mm] EV AP . COIL ACCESS SIDE..............................................................36.00 [914.0] POWER ENTR Y SIDE .................................................................
— 11 — ACCESSORY DIMENSIONS C00076 Gasket around outer edge Insulated deck pan Gasket around duct S/A R/A HV A C unit base *Gasketing outer flange Flashing field supplied Roofing material field su.
— 12 — SELECTION PROCEDURE (WITH E XAMPLE) I DETERMINE COOLING AND HEATING REQUIREMENTS AT DESIGN CONDITIONS: Given: Required Cooling Capacity (TC)....................... 34,500 Btuh Sensible Heat Capacity (SHC)......................... 26,000 Btuh Required Heating Capacity.
— 13 — PERFORMANCE DATA STANDARD INDOOR ECM MOTOR COOLING CAPACITIES 574B024 COOLING PERFORMANCE T ABLE T emp (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 TC SHC kW 24.
— 14 — PERFORMANCE DATA (cont) STANDARD INDOOR ECM MOTOR COOLING CAPACITIES (cont) See Legend and Notes on page 15. 574B036 COOLING PERFORMANCE T ABLE 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* 67 72 75 TC SHC kW 36.
— 15 — PERFORMANCE DATA (cont) STANDARD INDOOR ECM MOTOR COOLING CAPACITIES (cont) 574B048 COOLING PERFORMANCE T ABLE 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 TC SHC kW 45.
— 16 — FIL TER SIZE CFM 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 20 X 20 X 1 0.05 0.07 0.08 0.10 0.12 0.13 0.14 0.15 ————————— — — 20 X 24 X 1 —— — — 0.09 0.10 0.11 0.13 0.
— 17 — 574B COOLING DRY COIL ECM AIRFLOW — SMALL CABINET 574B COOLING DRY COIL ECM AIRFLOW — LARGE CABINET 574B HEATING ECM AIRFLOW — SMALL CABINET 574B HEATING ECM AIRFLOW — LARGE CABINET UNIT SIZE CFM ADJUST PIN SELECT LO PIN NOM PIN HI PIN EXTERNAL STATIC PRESSURE RANGE 0.
— 18 — 574B ECM AIR FLOW VS. TEMPERATURE RISE CHART PERFORMANCE DATA (CONT) ECONOMIZER/1-IN. FIL TER PRESSURE DROP (in. wg) UNIT COOLING SIZE RA TED GAS INPUT RA TE (X 1000) AIRFLO W SETTING EAST SELECT ™ (SCFM) CALCULA TED TEMPERA TURE RISE MIN.
— 19 — TYPICAL PIPING AND WIRING INDOOR THERMOST A T DISCONNECT PER NEC* FROM POWER SOURCE RETURN AIR T OP CO VER FROM GAS LINE *NEC - NA TIONAL ELECTRICAL CODE ROOF RETURN-AIR FLEXIBLE DUCT CEILI.
— 20 — APPLICATION DATA Condensate trap — A 2-in. condensate trap must be fi eld supplied. Ductwork — Secure down fl ow discharge ductwork to roof curb .
— 21 — C99024 ELECTRICAL DATA 574B (STANDARD) ELECTRICAL DATA UNIT SIZE 574B V -PH-Hz V O LTA G E RANGE COMPRESSOR OUTDOOR F AN M OTOR INDOOR F AN MO T OR PO WER SUPPL Y Min Max RLA LRA FLA FLA MCA MAX FUSE OR BKR 024 208/230 – 1 – 60 187 253 13.
— 22 — TYPICAL WIRING SCHEMATIC — 208/230-1-60 SHOWN C01035 YEL BLK YEL BLU YEL YEL BLK BRN I BLK.
— 23 — TYPICAL WIRING SCHEMATIC — 208/230-3-60 SHOWN C99077 C03025.
— 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 has reached the required speed, the burner sequence begins.
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— 27 — PACKAGED GAS HEATING/ELECTRIC COOLING UNITS CONSTANT VOLUME APPLICATION HVAC GUIDE SPECIFICATIONS SIZE RANGE: 2 TO 5 TONS, NOMINAL COOLING 40,000 TO 130,000 BTUH, NOMINAL HEATING INPUT BRYANT MODEL NUMBER: 574B PART 1 — GENERAL 1.
— 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.
An important point after buying a device Bryant 574B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 574B yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bryant 574B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 574B you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 574B will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 574B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bryant 574B.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 574B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 574B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
