Carrier 50HE003-006 User Manual
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1
50HJ004---007
50HE003---006
Single---P ackage Rooftop Electric Cooling
Units with O ptio n a l Electric Heat
Installation Instructions
TABLE OF CONTENTS
Page
SAFETY CONSIDERATIONS 1........................
INSTALLATION 1..................................
Step 1--Provide Unit Support 2......................
ROOF CURB 2................................
SLAB MOUNT 2..............................
ALTERNATE UNIT SUPPORT 2.................
Step 2--Field Fabricate Ductwork 2...................
Step 3--Install External Trap for Condensate Drain 2.......
Step 4--Rig and Place Unit 4.........................
POSITIONING 4..............................
Step 5 — Make Electrical Connections 8................
FIELD POWER SUPPLY 8......................
FIELD CONTROL WIRING 8....................
HEAT ANTICIPATOR SETTINGS 8...............
Step 6 — Adjust Factory-Installed Options 29...........
COBRA ENERGY RECOVERY UNITS 29.......
HUMIDI-MIZER ADAPTIVE
DEHUMIDIFICATION SYSTEM 29..............
DISCONNECT SWITCH 29.....................
MANUAL OUTDOOR-AIR DAMPER 29..........
CONVENIENCE OUTLET 29...................
NOVAR CONTROLS 29........................
PREMIERLINK CONTROL 31.................
OPTIONAL ECONOMI$ER IV AND
ECONOMI$ER2 34............................
ECONOMI$ER IV STANDARD SENSORS 35......
ECONOMI$ER IV CONTROL MODES 36.........
Step 7 — Adjust Evaporator-Fan Speed 41..............
PRE--START --UP 58..................................
START--UP 58.......................................
SERVICE 62........................................
TROUBLESHOOTING 67.............................
START--UP CHECKLIST 72...........................
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install, repair,
or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguishers
available for all brazing operations.
Recognize safety information. This is the safety-- alert symbol
. When you see this symbol on the furnace and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which ma y result in minor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability,or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before performing service or maintenance operations
on unit, turn off main power switch to unit and install
lockout tag. Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit
rating plate.
!
WARNING
INSTALLATION
Unit is shipped in the vertical discharge configuration. To convert
to horizontal discharge application, remove duct opening covers.
Using the same screws, install covers on duct openings in
basepan of unit with insulation-side down. Seals around
openings must be tight. (See Fig. 1.)
- Installation Instructions 1
- 50HJ004-007 3
- 50HE003-006 3
- MAXIMUM ALLOWABLE 4
- DIFFERENCE (in.) 4
- Humidi-MiZer system 5
- Field Wiring 8
- Table 1—Physical Data 50HJ 9
- Table 2—Physical Data 50HE 10
- LOW VOLTAGE 11
- CONNECTIONS 11
- INTEGRATED GAS UNIT 11
- CONTROLLER (IGC) 11
- Table 3—Electrical Data--50HE 12
- Table 4—Electrical Data--50HJ 17
- % RELATIVE HUMIDITY 29
- CB — Circuit Breaker 30
- PremierLink 33
- C7400A1004 34
- FILTER ACCESS PANEL 35
- OUTDOOR-AIR OPENING AND 35
- INDOOR COIL ACCESS PANEL 35
- COMPRESSOR 35
- ACCESS PANEL 35
- FOR OCCUPANCY CONTROL 37
- REPLACE JUMPER WITH 37
- FIELD-SUPPLIED TIME CLOCK 37
- RELATIVE HUMIDITY (%) 40
- RANGE CONFIGURATION (ppm) 41
- DELTA P IN. WG 42
- (Belt Drive)* 45
- Standard Motor (Belt Drive)* 54
- PRE-START-UP 58
- START-UP 58
- SPACE TEMPERATURE 60
- UNIT FAN HEIGHT (in.) — “A” 63
- 007 (460 v) 3.50 63
- 50HE -- 2 TON CHARGING CHART 66
- 50HE -- 5 TON CHARGING CHART 67
- START- UP CHECKLIST 72
- I. PRELIMINARY INFORMATION 72
- III. START-UP 72
Summary of Contents
Page 1 - Installation Instructions
150HJ004---00750HE003---006Single---P ackage Rooftop Electric CoolingUnits with O ptio n a l Electric HeatInstallation InstructionsTABLE OF CONTENTSPa
Page 2
10Table 2—Physical Data 50HEBASE UNIT 50HE 003 004 005 006NOMINAL CAPACITY2 3 4 5OPERATING WEIGHT (lb)Unit435 445 465 635Humidi-MiZer Adaptive Dehumi
Page 3 - 50HE003-006
11LEGENDC—ContactorCOMP — CompressorIFC — Indoor (Evaporator) Fan ContactorNEC — National Electrical CodeTB — Terminal Block208/230-1-60575-3-60(SIZES
Page 4 - DIFFERENCE (in.)
12Table 3—Electrical Data--50HEUNIT SIZENominalV --- P h --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT POWER
Page 5 - Humidi-MiZer system
13Table 3 — Electrical Data--50HE (cont)UNIT SIZENominalV --- P h --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC H
Page 6
14Table 3 — Electrical Data--50HE (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 7
15Table 3 — Electrical Data--50HE (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 8 - Field Wiring
16Table 3 — Electrical Data--50HE (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 9 - Table 1—Physical Data 50HJ
17Table 4—Electrical Data--50HJUNITSIZENOMINALV --- P H --- H zIFM TYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT POWER SU
Page 10 - Table 2—Physical Data 50HE
18Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFM TYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 11 - CONTROLLER (IGC)
19Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFM TYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (EACH) OUTDOOR FANIFMFLAELECTRIC H
Page 12 - Table 3—Electrical Data--50HE
2Step 1 —Provide Unit SupportRoofCurbAssemble and install accessory roof curb in accordance withinstructions shipped with curb. (See Fig. 2.) Install
Page 13
20Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFM TYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (EACH) OUTDOOR FANIFMFLAELECTRIC H
Page 14
21Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 15
22Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HE
Page 16
23Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HE
Page 17 - Table 4—Electrical Data--50HJ
24Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HE
Page 18
25Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLT AGE RANGE COMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HE
Page 19
26Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUT-LETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 20
27Table 4 — Electrical Data--50HJ (cont)UNITSIZENOMINALV --- P H --- H zIFMTYPECONVOUT-LETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 21
28Table 4 — Electrical Data--50HJ (cont)UNIT SIZENOMINALV --- P H --- H zIFMTYPECONVOUTLETVOLTAGERANGECOMPRESSOR (each) OUTDOOR FANIFMFLAELECTRIC HEAT
Page 22
29Step 6 —Adjust Factory-Installed OptionsCobra Energy Recovery UnitsPlease refer to the supplement provided for information oninstalling and operati
Page 23
3ROOF CURBACCESSORYAUNITSIZECRRFCURB001A011-2[356]CRRFCURB002A012-0[610]NOTES:1. Roof curb accessory is shipped disassembled.2. Insulated panels.3
Page 24
30CB — Circuit BreakerCR — Cooling RelayDHR — Dehumidify RelayDSV — Discharge Solenoid ValveHR — Heater RelayLPS — Low Pressure SwitchLSV — Liquid Sol
Page 25
31C06131Fig. 20 --- Outdoor--Air Damper WithHood AttachedC06132Fig. 21 --- Outdoor--Air Damper Position SettingPremierlink ControlThe PremierLink con
Page 26
32Table 5—PremierLink Sensor UsageAPPLICATIONOUTDOOR AIRTEMPERATURE SENSORRETURN AIRTEMPERATURE SENSOROUTDOOR AIRENTHALPY SENSORRETURN AIRENTHALPY SE
Page 27
33PREMIERLINKCONTROLHINGEDDOORPANELC06017Fig. 23 --- PremierLinktController (Installed)TB-1RY1Y2W1W2GCX12345678TB-312345678TB-212345678J6ANAL OGJ50-20
Page 28
341. Use a 4-conductor, 18 or 20 AWG cable to connect theenthalpy control to the PremierLink controller andpower transformer.2. Connect the following
Page 29 - % RELATIVE HUMIDITY
35NOTE: These instructions are for installing the optionalEconoMi$er IV and EconoMi$er2 only. Refer to the accessoryEconoMi$er IV or EconoMi$er2 insta
Page 30 - CB — Circuit Breaker
36Supply Air Temperature (SAT) SensorThe supply air temperature sensor is a 3 K thermistor located atthe inlet of the indoor fan. (See Fig. 39.) This
Page 31
37FOR OCCUPANCY CONTROLREPLACE JUMPER WITHFIELD-SUPPLIED TIME CLOCKLEGENDDCV— Demand Controlled VentilationIAQ — Indoor Air QualityLA — Low Ambient Lo
Page 32
38Differential Enthalphy ControlFor differential enthalpy control, the EconoMi$er IV controlleruses two enthalpy sensors (HH57AC078 andCRENTDIF004A00)
Page 33 - PremierLink
39activation to allow the dampers to open. This delay allows thedamper to reach the appropriate position to avoid unnecessary fanoverload.Minimum Posi
Page 34 - C7400A1004
4Step 4 —Rig and Place UnitInspect unit for transportation damage, and file any claim withtransportation agency. Keep unit upright and do not drop.Spr
Page 35 - ACCESS PANEL
40CONTROLCURVEABCDCONTROL POINTAPPROX. deg. F (deg. C)AT 50% RH73 (23)70 (21)67 (19)63 (17)12 14 16 18 20 22 24 26
Page 36
41TR124 VacCOMTR24 VacHOT12345EFEF1+_P1T1PTNEXH2V 10VEXHSetSet2V 10V2V 10VDCVDCVFreeCoolBCADSO+SR+SRSOAQ1AQDCVMinPosOpenMaxN1C06038Fig. 44 --- EconoMi
Page 37 - FIELD-SUPPLIED TIME CLOCK
42Table 8—CO2Sensor Standard SettingsSETTING EQUIPMENT OUTPUTVENTILATIONRATE(cfm/Person)ANALOGOUTPUTCO2CONTROL RANGE(ppm)OPTIONALRELAY SETPOINT(ppm)RE
Page 38
43Table 9—50HJ and 50he Fan Rpm at Motor Pulley Setting With Standard Motor*UNIT50HJ50HEMOTOR PULLEY TURNS OPEN01/21 11/22 21/23 31/24 41/25 51/260039
Page 39
44Table 13—Accessory/FIOP Electric Heaters Static Pressure Drop (in. wg) — 50HJ004-007 and 50HE003 --006COMPONENTCFM600 900 1200 1400 1600 1800 2000 2
Page 40 - RELATIVE HUMIDITY (%)
45Table 16—Fan Performance 50HJ004, 50HE004 — Vertical Discharge Units; Standard Motor(Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg0.2 0.4
Page 41 - RANGE CONFIGURATION (ppm)
46Table 18—Fan Performance 50HJ005, 50HE005 — Vertical Discharge Units; Standard Motor(Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0.4
Page 42 - DELTA P IN. WG
47Table 20—Fan Performance 50HJ006, 50HE006 Single-Phase — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (
Page 43
48Table 21—Fan Performance 50HJ006, 50he006 Three-Phase — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (i
Page 44
49Table 22—Fan Performance 50HJ006, 50HE006 — Vertical Discharge Units; High-Static Motor(Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2
Page 45 - (Belt Drive)*
5NOTES:1. Place unit on curb as close as possible to the duct end.2. Dimension in ( ) is in millimeters.3. Hook rigging shackles through holes in
Page 46
50Table 23—Fan Performance 50HJ007 — Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0.4 0.6 0.8
Page 47
51Table 24—Fan Performance 50HJ007 — Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0.4 0.6
Page 48
52Table 26—Fan Performance 50HJ004, 50HE004 — Horizontal Discharge Units; Standard Motor(Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0
Page 49
53Table 28—Fan Performance 50HJ005, 50he005 — Horizontal Discharge Units; Standard Motor(Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0
Page 50
54Table 30—Fan Performance 50HJ006, 50HE006 Single-Phase — Horizontal Discharge Units;Standard Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE
Page 51
55Table 31—Fan Performance 50HJ006, 50HE006 Three-Phase — Horizontal Discharge Units;Standard Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (
Page 52
56Table 32—Fan Performance 50HJ006, 50HE006 — Horizontal Discharge Units;HIGH--STATIC Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0
Page 53
57Table 34—Fan Performance 50HJ007 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFMEXTERNAL STA TIC PRESSURE (in. wg)0.2 0.4 0.
Page 54 - Standard Motor (Belt Drive)*
58PRE-START-UPFIRE, EXPLOSION, ELECTRICAL SHOCK HAZARDFail ur e to follow thi s warni ng coul d resul t in per sona linjur y, death, and/or prope rt y
Page 55
59with a Cycle-LOC protection device. The unit shuts down onany safety trip and remains off; an indicator light on thethermostat comes on. Check the
Page 56
6C06156Fig. 8 --- 50HJ004--007 Base Unit Dimensions50HE,HJ
Page 57
60S With Y1 and Y2 energized Economizer maintains anSASP = SATLO2 + 3.S If SAT > SASP + 5 and economizer position >80%,economizer will go to min
Page 58 - START-UP
61S SPT reading is availableS OAT ± SPTS Economizer Position is NOT forcedIf any of the above conditions are not met, the economizersubmaster referenc
Page 59
62C06137Fig. 53 --- Humidi--Mizert Hot GasReheat Mode OperationHot Gas Reheat ModeWhen the humidity levels in the space require humidity control, ahot
Page 60 - SPACE TEMPERATURE
63Table 35—Humidi-Mizer Adaptive Dehumidification System Sequence of Operation andSystem Response — Single Compressor Unit (50HE003-- 006, 50HJ004-007
Page 61
64Low ChargeCoolingUsing Cooling Charging Charts, Fig. 58--61, vary refrigerantuntil the conditions of the charts are met. Note the charging chartsare
Page 62
65C06142Fig. 61 --- Cooling Charging Chart,Standard 50HJ007C06143Fig. 62 --- Cooling Charging Chart, 50HJ004 withOptional Humidi--MiZer Adaptive Dehum
Page 63 - 007 (460 v) 3.50
66C06145Fig. 64 --- Cooling Charging Chart, 50HJ005 withOptional Humidi--MiZer Adaptive Dehumidification SystemC06146Fig. 65 --- Cooling Charging Char
Page 64
6750HE -- 5 TON CHARGING CHART55.065.075.085.095.0105.0115.042 47 52 57 62 67 72 77SuctionLineTemp(degF)Suction Line Pressure (psig)310.0410.0510.0610
Page 65
68DCV Minimum and MaximumPositionTo check the DCV minimum and maximum position:1. Make sure EconoMi$er IV preparation procedure has beenperformed.2. C
Page 66 - 50HE -- 2 TON CHARGING CHART
69Table 36—Cooling Service AnalysisPROBLEM CAUSE REMEDYCompressor and Condenser FanWill Not Start.Power failure. Call power company .Fuse blown or cir
Page 67 - 50HE -- 5 TON CHARGING CHART
7C06157Fig. 9 --- 50HE003--006 Base Unit Dimensions50HE,HJ
Page 68
70Table 37—Humidi-MiZer Adaptive Dehumidification System Subcooling Mode Service AnalysisPROBLEM CAUSE REMEDYSubcooling Mode (Liquid Reheat)Will Not
Page 69
71C06053Fig. 70 --- EconoMi$er IV Functional View50HE,HJ
Page 70
72START- UP CHECKLIST(Remove and Store in Job File)I. PRELIMINARY INFORMATIONMODEL NO.: SERIAL NO.:DATE: TECHNICIAN:II. PRE -START-UP (insert checkmar
Page 71
8Step 5 —Make Electrical ConnectionsELECTRICAL SHOCK HAZARDFail ur e to follow thi s warni ng coul d resul t in per sona linjur y or deat h,Unit cabi
Page 72 - III. START-UP
9Table 1—Physical Data 50HJBASE UNIT 50HJ 004 005 006 007NOMINAL CAPACITY3 4 5 6OPERATING WEIGHT (lb)Unit435 445 465 540Humidi-MiZer Adaptive Dehumid
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