Carrier 50HE003-006, 50HJ004 Return Air Enthalphy Sensor, EconoMi$er IV Component Locations

Page 34

1.Use a 4-conductor, 18 or 20 AWG cable to connect the enthalpy control to the PremierLink™ controller and power transformer.

2.Connect the following 4 wires from the wire harness located in rooftop unit to the enthalpy controller:

a.Connect the BRN wire to the 24 vac terminal (TR1) on enthalpy control and to pin 1 on 12-pin harness.

b.Connect the RED wire to the 24 vac GND terminal (TR) on enthalpy sensor and to pin 4 on 12-pin harness.

c.Connect the GRAY/ORN wire to J4-2 on PremierLink controller and to terminal (3) on enthalpy sensor.

d.Connect the GRAY/RED wire to J4-1 on PremierLink controller and to terminal (2) on enthalpy sensor.

BRACKET

HH57AC078 ENTHALPY SENSOR (USED WITH ENTHALPY CONTROL FOR DIFFERENTIAL ENTHALPY OPERATION)

HH57AC077

ENTHALPY CONTROL AND OUTDOOR AIR ENTHALPY SENSOR

C7400A1004 +

50HE,HJ

NOTE: If installing in a Carrier rooftop, use the two gray wires provided from the control section to the economizer to connect PremierLink controller to terminals 2 and 3 on enthalpy sensor.

Return Air Enthalphy Sensor

Mount the return-air enthalpy sensor (HH57AC078) in the return-air duct. The return air sensor is wired to the enthalpy controller (HH57AC077). The outdoor enthalpy changeover set point is set at the controller.

ENTHALPY CONTROLLER

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

S (OUTDOOR

 

 

 

 

 

 

 

 

 

+

AIR

 

 

 

 

BRN

 

 

 

 

 

A B C

TR

TR1

 

 

BLK

 

 

ENTHALPY

 

 

 

 

 

 

SENSOR)

 

 

 

 

 

 

 

 

 

D

SO

+

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

SR

+

 

 

 

 

 

 

 

S (RETURN AIR

 

 

 

 

 

 

 

 

 

 

+

ENTHALPY

 

2

3

 

 

 

 

 

 

 

 

SENSOR)

 

1

 

 

GRAY/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

 

 

WIRE HARNESS

 

 

 

 

GRAY/RED

IN UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES:

1.Remove factory-installed jumper across SR and + before connecting wires from return air sensor.

2.Switches shown in high outdoor air enthalpy state. Terminals 2 and 3 close on low outdoor air enthalpy relative to indoor air enthalpy.

3.Remove sensor mounted on back of control and locate in outside air- stream.

C06019

Fig. 25 ---Outdoor and Return Air Sensor Wiring Connections for Differential Enthalpy Control

To wire the return air enthalpy sensor, perform the following (See Fig. 25):

1.Use a 2-conductor, 18 or 20 AWG, twisted pair cable to connect the return air enthalpy sensor to the enthalpy controller.

2.At the enthalpy control remove the factory-installed resistor from the (SR) and (+) terminals.

3.Connect the field-supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (SR+)

terminal on the enthalpy controller. Connect the BLK wire to (S) spade connector on the return air enthalpy sensor and the (SR) terminal on the enthalpy controller.

MOUNTING PLATE

C06020

Fig. 26 ---Differential Enthalpy Control,

Sensor and Mounting Plate (33AMKITENT006)

 

ECONOMI$ER IV

 

CONTROLLER

WIRING

OUTSIDE AIR

TEMPERATURE SENSOR

HARNESS

LOW AMBIENT

 

ACTUATOR

SENSOR

 

C06021

Fig. 27 ---EconoMi$er IV Component Locations

OUTDOOR

AIR HOOD

ECONOMI$ER2

HOOD

PLUG

SHIPPING

 

BRACKET

GEAR DRIVEN

BAROMETRICDAMPER RELIEF

DAMPER

C06022

Fig. 28 ---EconoMi$er2 Component Locations

Optional Economi$er IV and Economi$er2

See Fig. 27 for EconoMi$er IV component locations. See Fig. 28 for EconoMi$er2 component locations.

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Contents Installation Instructions Provide Unit Support Roof Curb Alternate Unit SupportRoof Curb Details Positioning Unit Leveling Tolerances50HE 50HJ50HJ004-007 Base Unit Dimensions 50HE003-006 Base Unit Dimensions Field Control Wiring Field Power SupplyHeat Anticipator Settings Make Electrical ConnectionsPhysical Data 50HJ Hi-StaticPhysical Data 50HE Base Unit 50HEPower Wiring Connections Electrical Data-50HE None YES Actual kW PH---HzMin Max B00006 008,009 23.4 30.1 40.8 Electrical Data-50HJ KW†006 11.8 414 508 007 10.6 16.0 008 13.8 20.0 Ton 004+005 19.9 24.3 55.2 76.3 86.9 168 34.9 173 002 13.6 A00 or 007008 Humi 009 18.4 111 518 632 018 17.0 16.4 23.9 012 10 ton18.7 133 518 632 17.0 16.4 24.6 019 34.0 32.7 45.0 014 A00 or Actual kW12.5 Humidi-MizerAdaptive Dehumidification System Disconnect SwitchAssembly Manual Outdoor DamperTypical Humidi-MiZer t Adaptive Dehumidification System Install the Indoor Air Quality CO2 Sensor Install the Supply Air Temperature SAT SensorOutdoor Air Temperature Sensor OAT Enthalpy Sensors and ControlOr Equivalent PremierLinkSensor UsageRequired Not UsedPremierLinktController Installed Return Air Enthalphy Sensor EconoMi$er IV Component LocationsHood Box Removal Outdoor Air Lockout Sensor Supply Air Temperature SAT SensorSupply Air Sensor Temperature Resistance Values Economi$er IV Control ModesEconoMi$er IV Wiring Differential Enthalphy Control Exhaust Set Point AdjustmentIndoor Air Quality IAQ Sensor Input Thermostats Minimum Position ControlDamper Movement + TR Dehumidification of Fresh Air with DCV Control Adjust Evaporator-Fan SpeedBelt Drive Motors CO2Sensor Standard Settings Belt Drive Motor MountingEvaporator-Fan Motor Data Standard Motor Evaporator-Fan Motor Data High-Static Motors003,004,005 006 74/84 007 Evaporator-Fan Motor Efficiency600 900 1200 1400 1600 1800 2000 2200 2400 2600 External Static Pressure in. wg957 522 1000 598 173 718 267 Rpm Bhp Watts 900 566 142 690 228879 9031400 737 355 842 481 932 610 Rpm Bhp Watts 1200 666 252 778 361 873 476 956 5941300 701 809 418 902 540 983 665 875 551 962 6891700 866 478 966 608 Rpm Bhp Watts 1500 790 353 897 471 991 6001600 828 412 931 536 1022 670 1800 905 551 1001 6871495 1858 1700 1462 20671472 1761 1600 1463 1766 1520 1964 18002400 1145 1174 1223 1346 1296 1526 2200 1063 929 1147 1089 1224 1256 1295 14312300 1104 1046 1185 1212 1260 1386 2500 1185 1311 1262 14902000 984 727 1078 892 Rpm Bhp Watts 1800 907 558 1006 708 1092 8601900 945 638 1042 796 2100 1024 823 1115 9972300 1103 1044 1189 1234 1266 1425 2100 1024 823 1115 997 1195 1173 1268 13502200 1063 929 1152 1111 1230 1294 2400 1143 1168 1227 13671100 612 195 735 Rpm Bhp Watts 900 554 134 6811000 583 163 707 9191400 706 324 Rpm Bhp Watts 1200 643 233 762 3441300 674 276 1500 738 379719 Rpm Bhp Watts 1500 724 295 837 402 937 524 1028 6601600 757 343 866 455 962 580 1700 790 398 894 514 988 6431490 1873 1800 External Sttic Pressure in. wg1474 1797 1700 1508 1957 1900Rpm Bhp Watts 1500 1188 970 1261 1143 2400 1033 970 1115 1120 1192 1279 1264 14482500 1069 1084 1149 1239 1223 1403 1293 1576 1600 1208 1033 12792600 1097 1169 1181 1356 1257 1546 2400 1026 945 1115 1118 1195 1295 1268 14762500 1061 1053 1148 1233 1226 1416 1297 1604 2700 1132 1294 1214 1487 1289 1684Unit Preparation Internal WiringRefrigerant Service Ports Return-Air FiltersVentilation Continuous Fan Safety ReliefHeating Operating Sequence Cooling Units Without EconomizerDX Cooling Temperature Control Example Routine 3 OATSubcooling Mode Humidi-MiZer Normal Design Cooling OperationCondenser Coil CleaningEvaporator Coil One-Row CoilFan Motor Bearings Evaporator Fan Belt AdjustmentCondenser-Fan Adjustment Condensate DrainCooling Charging Chart Standard 50HJ005 Low Charge CoolingCooling Charging Chart Standard 50HJ007 50HE,HJ C06145 Economi$er IV Troubleshooting Replacement PartsUnit Troubleshooting DCV Demand Controlled Ventilation and Power ExhaustDCV Minimum and Maximum Position Economi$er IV Troubleshooting CompletionSupply-Air Input Cooling Service Analysis Subcooling Mode Liquid Reheat EconoMi$er IV Input/Output LogicEconoMi$er IV Functional View START-UP Checklist
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