Bryant 581B - Manuals

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Manual

Manual Bryant 581B

Summary

Page 2 - Fig. 2 — Base Unit Dimensions

UNIT 581B STANDARD UNIT WEIGHT VARISLIDE™ ECONOMIZER WEIGHT CORNER WEIGHT ‘‘A’’ CORNER WEIGHT ‘‘B’’ CORNER WEIGHT ‘‘C’’ CORNER WEIGHT ‘‘D’’ Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg 036 530 240 34 15.4 127 57.6 122 55.3 138 62.6 143 64.9 048 540 245 34 15.4 129 58.5 124 56.2 141 64.0 146 66.2 060 560 254 ...

Page 4 - Fig. 4 — Roof Curb Dimensions

Fig. 4 — Roof Curb Dimensions ROOF CURB ACCESSORY ‘‘A’’ UNIT SIZE CRRFCURB001A00 14 9 [356] 581B036-072 CRRFCURB002A00 24 9 [610] NOTES:1. Roof curb accessory is shipped disassembled. 2. Insulated panels.3. Dimensions in [ ] are in millimeters. 4. Roof curb: galvanized steel.5. Attach ductwork to cu...

Page 5 - II. UNIT DUCT CONNECTIONS; Connection must be made to roof curb before unit is; III. RIG AND PLACE UNIT; If unit has forklift protection skids, be sure to; operating weights with an economizer.; Fig. 6 — Rigging Details; MAXIMUM ALLOWABLE; Fig. 5 — Unit Leveling Tolerances

II. UNIT DUCT CONNECTIONS On vertical units, secure all ducts to roof curb and buildingstructure. Do not connect ductwork to unit. On horizontal units,duct flanges should be attached to horizontal openings andall ductwork should be secured to flanges. Insulate and weath-erproof all external ductwork...

Page 6 - Table 1 — Specifications

Table 1 — Specifications BASE UNIT 581B 036 048 060 072 NOMINAL CAPACITY (tons) 3 4 5 6 OPERATING WEIGHT (lb) Unit 530 540 560 615 With Economizer 564 574 594 649 Roof Curb 115 115 115 115 COMPRESSOR Scroll Quantity 1 1 1 1 Oil (oz) 42 53 50 60 REFRIGERANT TYPE R-22 Operating Charge (lb-oz) 5-8 8-6 ...

Page 7 - LEGEND

IV. FIELD CONNECTIONS A. External Trap Condensate Drain The unit’s 3 ⁄ 4 -in. condensate drain connections are located at the bottom and side of the unit. Unit discharge connec-tions do not determine the use of drain connections; eitherdrain connection can be used with vertical or horizontalapplicat...

Page 8 - NOMINAL; For example: A 115,000 Btuh input unit equals 115 cubic ft per hour or; Fig. 11 — Sediment Trap

Table 2 — Maximum Gas Flow Capacity of Pipe in Cubic Ft of Gas Per Hour for Gas Pressures of 0.5 Psig or Less and a Pressure Drop of 0.5 in. wg (Based on a 0.60 Specific Gravity Gas) NOMINAL IRON PIPE SIZE (in.) INTERNAL DIAMETER (in.) LENGTH OF PIPE, FT* 10 20 30 40 50 60 70 80 90 100 125 150 175 2...

Page 10 - Fig. 13 — Power Wiring Connections; Field Wiring; Fig. 14 — Low-Voltage Connections With or; RACEWAY; Contactor

3. Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (alsosee Tables 3A and 3B). On 3-phase units, voltages be-tween phases must be balanced within 2% and the cur-rent within 10%. Use the formula shown in Tables 3Aand 3B, Note 2, to determine t...

Page 12 - Table 4 — Thermostat List*

Table 3B — Electrical Data (Units with Electrical Convenience Outlet) UNIT 581B NOMINALVOLTAGE (V-Ph-Hz) VOLTAGE RANGE COMPRESSOR OFM IFM COMBUSTION FAN MOTOR POWER SUPPLY WITH OUTLET MINIMUM UNIT DISCONNECT SIZE* Min Max RLA LRA FLA FLA FLA MCA MOCP† FLA LRA 036 (3 Tons) 208/230-1-60 187 254 16.0 8...

Page 14 - Determine — Setting — 5 in.; Fig. 22 — Varislide Economizer Minimum Position Setting

8. Remove tape from outdoor-air thermostat (OAT). Fas- ten OAT to inside of hood using screws and speed clipsprovided. See Fig. 23. Make sure OAT terminals arepositioned up. 9. Replace outdoor-air opening panel using screws from Step 2. Replace filter access panel. Ensure the filteraccess panel slid...

Page 15 - Control Installation; Fig. 24 — Wiring Connections for Outdoor-Air

Save panels and screws. Remove optional economizerso the outdoor-air damper hood package can be re-moved from the filter section. See Fig. 16. 3. Assembly outdoor-air hood top and side plates as shown in Fig. 17. Install seal strips on hoop top and sides.Put aside screen retainer and retainer screw ...

Page 16 - CONTROL; Fig. 28 — Panels Reinstalled On Unit

d. After installation is complete, calculate the mini- mum airflow across the economizer. To calculate theminimum airflow, the following data is needed:total cfm (cfm 3 ), temperature of the total cfm (T 3 ), temperature of the return air (T 2 ), and tempera- ture of the entering outside air (T 1 )....

Page 19 - Table 5 — Rated Gas Inputs at Indicated Manifold Pressures; †Orifices are available through your local distributor or branch.; Fig. 31 — Burner Tray Details

Table 5 — Rated Gas Inputs at Indicated Manifold Pressures UNIT 581B NUMBER OF ORIFICES GAS SUPPLY PRESSURE (in. wg) MANIFOLD PRESSURE (in. wg) NATURAL GAS PROPANE* Natural Propane Orifice Drill Size Heating Input (Btuh)† Orifice Drill Size Heating Input (Btuh)† Min Max Min Max Natural Propane 036-0...

Page 29 - Refer to Optional Economizer sections on pages 13 and 14.; FAN HEIGHT

D. Filters Clean or replace at start of each heating and cooling season,or more often if operating conditions require it. Replacementfilters must be same dimensions as original filters. E. Outdoor-Air Inlet Screens Clean screens with steam or hot water and a mild detergent.Do not use disposable filt...

Page 31 - Table 17 — LED Error Code Description*

4. Slide the motor and blower wheel assembly out of the blower housing. The blower wheel can be cleaned at thispoint. If additional cleaning is required, continue withsteps 5 and 6. 5. To remove blower from the motor shaft, remove 2 setscrews. 6. To remove motor, remove 4 screws that hold the motor ...

Page 32 - Remove the 2 screws that attach the burner rack to the; B. Cleaning and Adjustment; Remove burner rack from unit as described in Removal; XI. REPLACEMENT PARTS

A. Removal and Replacement of Gas Train (See Fig. 31and 43.) 1. Shut off manual gas valve.2. Shut off power to unit.3. Remove compressor access panel.4. Slide out burner compartment side panel.5. Remove heat shield.6. Disconnect gas piping at unit gas valve.7. Remove wires connected to gas valve. Ma...

Page 34 - Table 20 — Cooling Service Analysis

Table 20 — Cooling Service Analysis PROBLEM CAUSE REMEDY Compressor andcondenser fanwill not start. Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,control relay or capacitor. Replace compon...

Page 35 - Table 21 — VarislideTM Economizer Troubleshooting

Table 21 — Varislide™ Economizer Troubleshooting PROBLEM CAUSE REMEDY Damper does notopen. Indoor (evaporator) fanis off. 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that 24 vac is present at the IFO terminal. Check whether 24 vac is present atPL6-1 (red wire) and/or PL6-3...

Page 36 - Table 22 — PARABLADE Economizer Troubleshooting; PROBLEM

Table 22 — PARABLADE Economizer Troubleshooting PROBLEM CAUSE REMEDY Damper does not open. Evaporator fan not on. Check wiring between G on connection board and indoor fan contactor. No power to economizer motor. 1. Disconnect power at TR and TR1. Disconnect jumper across P and P1.2. Connect jumper ...

Page 37 - Fig. 45 — Typical Wiring Schematic and Component Arrangement

Fig. 45 — Typical Wiring Schematic and Component Arrangement —37—