Bryant 558D manuale d’uso

IMPORT ANT — READ BEFORE INST ALLING 1. Read and become familiar with these installation in- structions before installing this unit (see Fig. 1). 2. Be sure the installation conforms to all applicable local and national codes. 3. These instructions contain important information for the proper maintenance and repair of this equipment. Re- tain the[...]

*Indicates horizontal center of gravity . †Indicates vertical center of gravity . NOTES: 1. Dimensions in [ ] are in millimeters. 2. Center of gravity . 3. Direction of airflow . 4. Ductwork to be attached to accessory roof curb only . 5. Minimum clearance (local codes or jurisdiction may prevail): a. Bottom of basepan to combustible surfaces (w[...]

I. LOCA TE THE UNIT A. Clearance Maintain clearance around and above unit to provide mini- mum distance from combustible materials, proper airflow , and service access (see Fig. 2 and 3). Minimum clearance to combustibles is 0 in. on all sides. Minimum clearance to block walls or any other grounded sur- face is 42 in. on all sides. Minimum clearan[...]

Fig. 4 — Roof Curb ROOF CURB ACCESSOR Y ‘‘A ’’ UNIT SIZE CRRFCURB001A00 14 9 [356] 558D036-072 CRRFCURB002A00 24 9 [610] UNIT SIZE ‘ ‘B’’ ‘ ‘C’’ ‘ ‘D’’ Alt Drain Hole Power Control Connector Package Accessory 558D036-072 21 11 ⁄ 16 9 [551] 16 9 [406] 1 3 ⁄ 4 9 [44.5] 3 ⁄ 4 9 NPT 1 ⁄ 2 9 NPT CRBTMPWR001A00 ([...]

T able 1 — Specifications BASE UNIT 558D 036 048 060 072 NOMINAL CAP ACITY (tons) 345 6 OPERA TING WEIGHT (lb) Unit 365 375 395 470 Durablade Economizer 34 34 34 34 P ARABLADE Economizer 42 42 42 42 Roof Curb 11 5 11 5 11 5 11 5 COMPRESSOR TYPE Reciprocating Reciprocating Reciprocating Scroll Quantity 111 1 Oil (oz) 50 50 50 54 REFRIGERANT TYPE [...]

IV . FIELD CONNECTIONS A. External T rap Condensate Drain The unit’ s 3 ⁄ 4 -in. condensate drain connections are located on the bottom and side of the unit. Unit discharge connec- tions do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications. When using the standard side drain[...]

3. Use flexible transition between rigid ductwork and unit to prevent transmission of vibration. The transition may be screwed or bolted to duct flanges. Use suitable gas- kets to ensure weather- and airtight seal. 4. When horizontal return is used, install external field- supplied air filter(s) in return-air ductwork where it is easily accessi[...]

The field-supplied disconnect switch box may be mounted on the unit’ s end panel or on the corner post. Mount disconnect box on the left side of the rating plate when mounting on the unit’ s end panel. Do not mount the disconnect box over the unit rating plate. When mounting disconnect box on corner post, secure disconnect box to corner post a[...]

T ransformer Circuit Breaker (Fig. 14) The unit transformer contains an automatic-reset overcur- rent protector for control circuit protection. If this device trips, it may reset without warning and start the heating or cooling section of this product. Use caution when servicing: If overcurrent protector continues to trip, there is a problem in the[...]

T able 2 — Electrical Data UNIT 558D NOMINAL V -PH-Hz IFM TYPE VOL T AGE RANGE COMPR (each) OFM IFM ELECTRIC HEA T* POWER SUPPL Y DISCONNECT SIZE** Min Max RLA LRA FLA FLA Nominal kW FLA MCA MOCP† FLA LRA 036 (3 T on) 208/230-1-60 Std 187 254 16.9 86.7 1.4 2.8 — — 25.3/ 25.3 35/ 35 24/ 24 97/ 97 3.3/ 4.4 15.9/18.3 25.3/ 26.4 35/ 35 24/ 24 9[...]

T able 2 — Electrical Data (Cont) UNIT 558D NOMINAL V -PH-Hz IFM TYPE VOL T AGE RANGE COMPR (each) OFM IFM ELECTRIC HEA T* POWER SUPPL Y DISCONNECT SIZE** Min Max RLA LRA FLA FLA Nominal kW FLA MCA MOCP† FLA LRA 060 (5 T on) 208/230-1-60 Std 187 254 28.8 147 1.4 5.9 — — 43.3/ 43.3 60/ 60 42/ 42 159/159 4.9/ 6.5 23.5/27.1 43.3/ 43.3 60/ 60 4[...]

D. Accessory Installation At this time, any required accessories should be installed on the unit. Control wiring information is provided in the unit wiring diagram. Refer to Accessory Installation Instructions provided with accessory . E. Optional Outdoor-Air Damper Installation The outdoor-air hood and screen are attached to the basepan at the bot[...]

F . Optional Durablade Economizer The optional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical position. NOTE: Horizontal discharge block-of f plate is shipped with the air hood package. If unit is to be used for vert[...]

Assembly 1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 5. 2. Remove filter access panel by raising panel and swing- ing panel outward. Panel is now disengaged from track and can be removed. No tools are required [...]

d. After installation is complete, calculate the mini- mum airflow across the economizer . T o calculate the minimum 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 ). Cfm 1 is the outside air cfm, which will b[...]

Fig. 28 — P ARABLADE Economizer Installed in Unit CONTROL CURVE CONTROL POINT F (C) APPROX. A T 50% RH A 73 (23) B 70 (21) C 67 (19) D 63 (17) RH — Relative Humidity Fig. 29 — Enthalpy Settings for P ARABLADE Economizer Fig. 30 — Panels Reinstalled On Unit Fig. 31 — Outdoor-Air Hood Installed On Unit Fig. 32 — Filter Installed on Outdoo[...]

PRE-ST ART -UP W ARNING: Failure to observe the following warn- ings could result in serious personal injury: 1. Follow recognized safety practices and wear pro- tective goggles when checking or servicing refrig- erant system. 2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured[...]

II. COOLING SECTION ST ART -UP AND ADJUSTMENTS CAUTION: Complete the required procedures given in the Pre-Start-Up section on page 17 before starting the unit. Do not jumper any safety devices when operating the unit. Do not operate the compressor when the outdoor tem- perature is below 25 F (unless accessory low ambient kit is installed). Do not r[...]

of cooling is satisfied, the compressor and OFM will be deen- ergized. The damper position will be determined by the supply- air temperature. When the first stage of cooling is satisfied, there is a 30-second delay before the evaporator fan shuts of f. The damper then moves to the fully closed position. When using a continous fan, the damper mov[...]

T able 4 — Motor Data UNIT 558D EV APORA TOR-F AN MOTOR MAXIMUM MAXIMUM UNIT VOL T AGE MAXIMUM CONTINUOUS OPERA TING AMP BHP* W A TTS* DRA W 036 Std .34 440 208/230 2.9 460 1.4 575 1.4 Alt 1.00 1000 208/230 5.1 460 2.3 575 2.3 048 Std .75 850 208/230 3.7 460 1.9 575 1.9 Alt 1.00 1000 208/230 5.1 460 2.3 575 2.3 060 Std 1.20 1340 208/230 6.2 460 3[...]

T able 6 — 558D036 Air Delivery — V ertical Discharge Units (Alternate Motor) AIRFLOW (Cfm) AL TERNA TE BEL T DRIVE MOTOR External Static Pressure (in. wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts 900 581 1 19 673 179 736 219 805 249 865 288 91 1 338 957 388 988 428 1000[...]

T able 8 — 558D048 Air Delivery — V ertical Discharge Units (Alternate Motor) AIRFLOW (Cfm) AL TERNA TE BEL T DRIVE MOTOR External Static Pressure (in. wg) 0.1 0.2 0.3 0.4 0.6 0.7 0.8 1.0 Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm Watts Rpm W atts 1200 542 168 616 221 678 278 739 336 842 462 886 525 929 588 1008 704 1300[...]

T able 10 — 558D060 Air Delivery — V ertical Discharge Units (Alternate Motor) AIRFLOW (Cfm) AL TERNA TE BEL T DRIVE MOTOR External Static Pressure (in. wg) 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts 1500 730 347 789 409 896 542 990 685 1072 84[...]

T able 12 — 558D036 Air Delivery — Horizontal Discharge Units (Standard Motor) AIRFLOW (Cfm) ST ANDARD DIRECT DRIVE MOTOR Low Speed High Speed 208 v 230, 460, 575 v 208 v 230, 460, 575 v ESP Watts ESP Watts ESP Watts ESP Watts 900 0.72 253 0.75 277 0.73 307 0.76 363 1000 0.67 270 0.69 292 0.70 321 0.71 374 1 100 0.61 287 0.63 307 0.64 335 0.65 [...]

T able 14 — 558D048 Air Delivery — Horizontal Discharge Units (Standard Motor) AIRFLOW (Cfm) ST ANDARD DIRECT DRIVE MOTOR Low Speed High Speed 208 v 230, 460, 575 v 208 v 230, 460, 575 v ESP Watts ESP Watts ESP Watts ESP Watts 1200 0.93 458 0.97 506 1.04 572 1.09 632 1300 0.86 471 0.90 521 0.96 589 1.02 651 1400 0.78 503 0.84 556 0.90 616 0.96 [...]

T able 16 — 558D060 Air Delivery — Horizontal Discharge Units (Standard Motor) AIRFLOW (Cfm) ST ANDARD DIRECT DRIVE MOTOR Low Speed Medium Speed High Speed 208 v 230, 460, 575 v 208 v 230, 460, 575 v 208 v 230, 460, 575 v ESP Watts ESP W atts ESP W atts ESP Watts ESP Watts ESP Watts 1500 1.01 750 1.25 791 1.26 782 1.46 845 1.46 875 1.52 949 160[...]

T able 18 — 558D072 Air Delivery — Horizontal Discharge Units (Standard Motor) AIRFLOW (Cfm) ST ANDARD BEL T DRIVE MOTOR External Static Pressure (in. wg) 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts Rpm Watts Rpm W atts 1800 765 487 821 532 923 638 1019 843 1099 883 1 178 1031 12[...]

Whenever the evaporator fan is energized (during heating, cooling or continuous fan), 24-v power is on terminal IFO on the economizer or two-position damper control board. The damper motor will be energized with 12-vdc power and the damper will drive open until SW3 on the damper is deacti- vated. The damper motor will stop, and damper will remain i[...]

T wo-Row Coils (size 072) NOTE: Save all screws removed in this section. The screws must be used when reinstalling the equipment. 1. T o access 2-row coils, remove screws securing condenser- fan grille to condenser coil top cover . Place grille on top of condenser coil top cover as shown in Fig. 36. It is not necessary to remove the top cover . 2. [...]

IV . REFRIGERANT CHARGE Amount of refrigerant charge is listed on unit nameplate (also refer to T able 1). Unit panels must be in place when unit is operating during charging procedure. This unit uses a fixed-orifice refrigerant metering device lo- cated in the coil header . There is one orifice in each coil cir- cuit. The size of the orifice i[...]

Fig. 40 — Cooling Charging Chart; 558D036 Fig. 41 — Cooling Charging Chart; 558D048 Fig. 42 — Cooling Charging Chart; 558D060 Fig. 43 — Cooling Charging Chart; 558D072 —31—[...]

TROUBLESHOOTING Refer to T ables 19-21 and Fig. 44 for T roubleshooting information. T able 19 — Cooling T roubleshooting PROBLEM CAUSE REMEDY Compressor and condenser fan will not start. Power failure. Call power company . Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker . Defective thermostat, contactor , transformer[...]

T able 20 — Durablade Economizer T roubleshooting PROBLEM CAUSE REMEDY Damper does not open. Indoor (evaporator) fan is 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 at PL6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, che[...]

T able 21 — P ARABLADE Economizer T roubleshooting PROBLEM CAUSE REMEDY Damper does not open. Evaporator fan not on. Check wiring between G on connection board and indoor (evaporator) fan contactor . No power to economizer motor . 1. Disconnect power at TR and TR1. Disconnect jumper across P and P1. 2. Connect jumper across TR and 1. 3. Connect j[...]

Fig. 44 — T ypical Wiring Schematic LEGEND AHA — Adjustable Heat Anticipator C— Contactor , Compressor CAP — Capacitor CC — Cooling Compensator COMP — Compressor Motor D— Diode EC — Enthalpy Control ECON — Economizer EPS — Emergency Power Supply (Nine V olt Battery) ER — Economizer Relay FPT — Freeze Up Protection Thermostat[...]

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SERVICE TRAINING Packaged Service T raining programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Installation Overview • Maintenance • Operating Sequence A large selection of product, theory , and skills programs are available, using popular video-based forma[...]

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ST ART -UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMA TION MODEL NO.: DA TE: SERIAL NO.: TECHNICIAN: II. PRE-ST ART -UP (insert checkmark in box as each item is completed) M VERIFY THA T CONDENSA TE CONNECTION IS INST ALLED AS SHOWN IN THE INST ALLA TION INSTRUCTIONS M CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNES[...]