Bryant 551C Manual de usuario

1Installation Instructions551B 036--072551C 024--060SINGLE--PACKAGE ROOFTOP ELECTRIC COOLINGUNITS WITH OPTIONAL ELECTRIC HEATTABLE OF CONTENTSPageSAFE

10Table 2—Physical Data 551CBASE UNIT 551C 024 036 048 060NOMINAL CAP ACITY (nominal tons)2 3 4 5OPERATING WEIGHT (lb)Unit435 445 465 635Perfect Humid

11LEGENDC—ContactorCOMP — CompressorIFC — Indoor (Evaporator) Fan ContactorNEC — National Electrical CodeTB — Terminal Block208/230-1-60575-3-60(SIZES

12Table 3—Electrical Data-- 551CVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FAN ELECTRIC HEAT POWER SUPPLY * DISCONNECT SIZEUNIT SIZENominalV --- P h ---

13Table 3 — Electrical Data-- 551C (cont)VOLT AGE RANGE COMPRESSOR (each) OUTDOOR FAN ELECTRIC HEAT POWER SUPPLY * DISCONNECT SIZEUNIT SIZENominalV --

14Table 3 — Electrical Data-- 551C (cont)UNITNOMINALIFMCONVVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY DISCONNECT SIZEUNITS

15Table 3 — Electrical Data-- 551C (cont)UNITNOMINALIFMCONVVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY DISCONNECT SIZEUNITS

16Table 3 — Electrical Data-- 551C (cont)UNITNOMINALIFMCONVVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY DISCONNECT SIZEUNITS

17Table 4—Electrical Data-- 551BUNITNOMINALCONVVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY * DISCONNECT SIZEUNITSIZENOMINAL

18Table 4 — Electrical Data-- 551B (cont)UNITNOMINALCONVVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY * DISCONNECT SIZEUNITSI

19Table 4 — Electrical Data-- 551B (cont)VOLT AGE RANGE COMPRESSOR (EACH) OUTDOOR FAN ELECTRIC HEAT POWER SUPPLY DISCONNECT SIZEUNITSIZENOMINALV --- P

2Step 1 —Provide Unit SupportRoof CurbAssemble and install accessory roof curb in accordance withinstructions shipped with curb. (See Fig. 2.) Install

20Table 4 — Electrical Data-- 551B (cont)VOLT AGE RANGE COMPRESSOR (EACH) OUTDOOR FAN ELECTRIC HEAT POWER SUPPLY DISCONNECT SIZEUNITSIZENOMINALV --- P

21Table 4 — Electrical Data-- 551B (cont)UNITVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMELECTRIC HEAT POWER SUPPLY * DISCONNECT SIZEUNITSIZENOMINALV

22Step 6 —Adjust Factory-Installed OptionsPerfect Humidity Adaptive DehumidificationSystemPerfect Humidity system operation can be controlled by fiel

23CB — Circuit BreakerCR — Cooling RelayDHR — Dehumidify RelayDSV — Discharge Solenoid ValveHR — Heater RelayLPS — Low Pressure SwitchLSV — Liquid Sol

24C06131Fig. 19 --- Outdoor-- Air Damper With Hood AttachedC06132Fig. 20 --- Outdoor-- Air Damper Position SettingECONOMI$ER IVCONTROLLEROUTSIDE AIRTE

25HoodBoxHOOD BOXBRACKETC06024Fig. 23 --- Hood Box RemovalSIDEPANELINDOORCOILACCESSPANELINDOORCOILACCESSPANELCAULKHERETOPSIDEPANELC06025Fig. 24 --- In

26EconoMi$er IV ControlModesDetermine the EconoMi$er IV control mode before set up of thecontrol. Some modes of operation may require differentsensors

27Outdoor Enthalpy ChangeoverFor enthalpy control, accessory enthalpy sensor (part numberHH57AC078) is required. Replace the standard outdoor dry bulb

28C06034Fig. 33 --- EconoMi$er IV Controller Potentiometerand LED LocationsReplace the standard outside air dry bulb temperature sensor withthe access

29LED ONLED ONLED ONLED ONLED OFF1918LED OFFLED OFFLED OFF17161514131211109404550556065707580859095100DEGREES FAHRENHEITmADCBAC06035Fig. 34 --- Outsid

3ROOF CURBACCESSORYAUNITSIZECRRFCURB001A011˝-2˝[356]CRRFCURB002A012˝-0˝[610]NOTES:1. Roof curb accessory is shipped disassembled.2. Insulated panels.3

30A proportional anticipatory strategy should be taken with thefollowing conditions: a zone with a large area, varied occupancy,and equipment that can

31Dehumidification of Fresh Air with DCV ControlInformation from ASHRAE indicates that the largest humidityload on any zone is the fresh air introduce

32600050004000300020001000000.050.10.150.20.250.30.35DELTA P IN. WG4&5ton6 ton3 tonC06133Fig. 39 --- Perfect Humidityt Adaptive Dehumidification S

33Table 10—Evaporator-Fan Motor Data — Standard MotorUNIT551B551CUNITPHASEMAXIMUMCONTINUOUS BHP*MAXIMUMOPERATING WATTS*UNIT VOLTAGEMAXIMUMAMP DRAW024A

34Table 14 — Evaporator-Fan Motor EfficiencyMOTOR 551B EFFICIENCY024, 036, 0487506074/84*07284*Single-phase/3-phase.NOTE: Convert watts to bhp using t

35Table 15—Fan Performance 551B 036, 551C 036 — Vertical Discharge Units; Standard Motor(Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wgAIRFLOWCFM

36Table 17—Fan Performance 551B 048, 551C 048 — Vertical Discharge Units; Standard Motor(Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOWCF

37Table 19—Fan Performance 551B 060, 551C 060 Single-Phase — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in

38Table 20—Fan Performance 551B 060, 551C 060 Three-Phase — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in.

39Table 21—Fan Performance 551B 060, 551C 060 — Vertical Discharge Units; High-Static Motor(Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLO

4MAXIMUM ALLOWABLEDIFFERENCE (in.)A-B B-C A-C0.5 1.0 1.0C06110Fig. 3 --- Unit Leveling TolerancesDRAIN PLUGCONDENSATE PAN (SIDE VIEW)HORIZONTALDRAIN O

40Table 22—Fan Performance 551B 072 — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOWCFM0.2 0.4

41Table 23—Fan Performance 551B 072 — Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOWCFM0.2 0

42Table 25—Fan Performance 551B 036, 551C 036 — Horizontal Discharge Units; Standard Motor(Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOW

43Table 27—Fan Performance 551B 048, 551C 048 — Horizontal Discharge Units; Standard Motor(Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOW

44Table 29—Fan Performance 551B 060, 551C 060 Single-Phase — Horizontal Discharge Units;Standard Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (i

45Table 30—Fan Performance 551B 060, 551C 060 Three-Phase — Horizontal Discharge Units;Standard Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in

46Table 31—Fan Performance 551B 060, 551C 060 — Horizontal Discharge Units;High--Static Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIR

47Table 33—Fan Performance 551B 072 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWEXTERNAL STATIC PRESSURE (in. wg)AIRFLOWCFM0.2

48PRE-START-UPFIRE, EXPLOSION, ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.1.

49CoolingSet the space thermostat to the OFF position. Set the systemselector switch at COOL position and the fan switch at AUTOposition. Adjust the t

5NOTES:1. Place unit on curb as close as possible to the duct end.2. Dimensionin( )isinmillimeters.3. Hook rigging shackles through holes in base rail

50The liquid enters the evaporator coil at a temperature lower thanin standard cooling operation. This lower temperature increasesthe latent capacity

514. Clean coil using a commercial coil cleaner or dishwasherdetergent in a pressurized spray canister. Wash both sidesof coil and flush with clean wa

52Table 34—Perfect Humidity Adaptive Dehumidification System Sequence of Operation andSystem Response — Single Compressor Unit (551C 024-- 060, 551B 0

53C06140Fig. 50 --- Cooling Charging Chart,Standard 551B 048C06141Fig. 51 --- Cooling Charging Chart,Standard 551B 060C06142Fig. 52 --- Cooling Chargi

54C06144Fig. 54 --- Cooling Charging Chart, 551B 048 withOptional Perfect Humidity AdaptiveDehumidification SystemNOTE: When using the charging charts

55551C - 2 TON CHARGING CHART65.070.075.080.085.090.095.0100.0105.042 52 62 72SuctionLineTemp(degF)Suction Line Pressure (psig)448.0498.0548.0598.0648

56551C -- 4 TON CHARGING CHART67.077.087.097.042 47 52 57 62 67 72 77SuctionLineTemp(degF)Suction Line Pressure (psig)492.0542.0592.0642.0692.05.6 10.

57TROUBLESHOOTINGUnit TroubleshootingRefer to Tables 35-37 for unit troubleshooting details.Economi$er IV TroubleshootingSee Table 38 for EconoMi$er I

58EconoMi$er IV TroubleshootingCompletionThis procedure is used to return the EconoMi$er IV to operation.No troubleshooting or testing is done by perf

59Table 36—Perfect Humidity Adaptive Dehumidification System Subcooling Mode Service AnalysisPROBLEM CAUSE REMEDYSubcooling Mode (Liquid Re heat)Will

6CONTROL BOX PANELCONTROL BOX PANELCOMPRESSORCOMPRESSOR ACCESS ACCESS PANEL PANELC06375Fig. 8 --- 551B 036-- 072 Base Unit Dimension

60C06053Fig. 61 --- EconoMi$er IV Functional View551B,C

61START-UP CHECKLIST(Remove and Store in Job File)I. PRELIMINARY INFORMATIONMODEL NO.: SERIAL NO.:DATE: TECHNICIAN:II. PRE-START-UP (insert checkmark

7CONTROL BOX PANELCOMPRESSOR ACCESS PANELC06376Fig. 9 --- 551C 024-- 060 Base Unit Dimensions551B,C

8Step 5 —Make Electrical ConnectionsELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Unit cabinet must ha

9Table 1—Physical Data 551BBASE UNIT 551B 036 048 060 072NOMINAL CAP ACITY (nominal tons)3 4 5 6OPERATING WEIGHT (lb)Unit435 445 465 540Perfect Humidi