Carrier 30XW325-400 manual Typical control wiring schematics, A30-4697

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Typical control wiring schematics

30XW UNIT CONTROL WIRING SCHEMATIC

a30-4697

 

LEGEND

 

 

AWG

American Wire Gage

NEC

National Electrical Code

CB

Circuit Breaker

PMP

Chilled Water Pump

COM

Communication Port

PMPI

Chilled Water Pump Interlock

EMM

Energy Management Module

TB

Terminal Block

EQUIP GND

Equipment Ground

 

Field Power Wiring

FIOP

Factory-Installed Option

 

Field Control Wiring

MLV

Minimum Load Valve

 

Factory-Installed Wiring

NOTES:

1.Factory wiring is in accordance with UL 1995 standards. Field modifica- tions or additions must be in compliance with all applicable codes.

2.Wiring for main field supply must be rated 75C minimum. Use copper for all units. Incoming wire size range for the terminal block is #4 AWG to 500 kcmil for single point power (two conductors per phase). Incoming wire size range for the terminal blocks for dual point power option is #4 AWG to 500 kcmil for single point power (one conductor per phase). Incoming wire size range for 200/300-v models is 3/0 to 500 kcmil for sin- gle point power (one conductor per phase).

3.Terminals 9 and 10 of TB5 are for field external connections for remote on-off. The contacts must be rated for dry circuit application capable of handling a 24-vac load up to 50 mA.

4.Terminals 1 and 2 of TB5 are for external connections of chilled water pump interlock. The contacts must be rated for dry circuit application capable of handling a 24-vac load up to 50 mA.

5.Terminals 11 and 13 of TB5 are for control of chilled water pump 1 (PMP 1) starter. Terminals 15 and 13 of TB5 are for control of chilled water pump 2 (PMP 2) starter. Remove factory-installed jumper when using pump interlock. The maximum load allowed for the chilled water pump relay is 5-va sealed, 10-va inrush at 24-v. Field power supply is not required.

6.For control of chilled water pumps, a set of normally open contacts rated for dry circuit application must be supplied from field-supplied pump starter relay. Connect contacts directly to connector at main base board channel 18.

7.Terminals 12 and 13 of TB5 are for an alarm relay. The maximum load allowed for the alarm relay is 10-va sealed, 25-va inrush at 24-v. Field power supply is not required.

8.Make appropriate connections to TB6 as shown for energy management board options. The contacts for occupancy override, demand limit, and ice done options must be rated for dry circuit application capable for han- dling a 24-vac load up to 50 mA.

9.Terminal blocks TB5 and TB6 are located in the display panel box for all units. Refer to certified dimensional drawing for each unit to get the exact locations.

10.Refer to certified dimensional drawings for exact locations of the main power and control power entrance locations.

11.For control of condenser pump, connect field-supplied relay (max 5-va sealed, 10-va inrush at 24-v) directly to connector at main base board channel 22.

12.For head pressure control option, 0-10-vdc signal wires are factory- installed (violet and brown) from HGBP/COND board channel 9. Refer to controls manual for application with field-supplied water regulating valve.

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Contents Small footprint Features/BenefitsTable of contents Refrigerant isolation valves Optional suction service valvesMarine container shipment Heat exchangersSmooth Rotary Compressor Touch Pilot DisplayTWIN-SCREW Design Optional Navigator DisplayA30-4744 Model number nomenclatureCapacity ratings 30XW325-400 Unit Physical Data English Physical data30XW325-400 Unit Physical Data SI Factory-installed options Options and accessoriesA30-4684.eps A30-4685Field-installed accessories Field-supplied and field-installed insulationA30-4686 FIELD-SUPPLIED and FIELD-INSTALLED Insulation30XW Unit Dimensions DimensionsStandard 30XW Unit Dimensions 30XW Unit and Waterbox Dimensions4755 A30A30-4747 A30-4748A30-4751 A30-4725A30-4749 A30-4752Selection procedure Performance dataEvaporator and Condenser Flow Rates 30XW325-400 Evaporator NIH Flange 30XW325-400 Evaporator Marine WaterboxA30-4694 30XW325-400 Evaporator NIH Victaulic30XW325-400 Condenser Marine Waterbox A30-4696 30XW325-400 Condenser NIH Flange30XW325-400 Condenser NIH Victaulic Controls MicroprocessorControl sequence Safeties Typical control wiring schematics 30XW Unit Control Wiring SchematicA30-4697 Application data Variable evaporator flow rates Water loop volumeEvaporator fouling factor Condenser minimum flow rateElectric utility interests Wiring Typical Piping and Wiring for 30XW Evaporator and CondenserA30-4700 Electrical data Standard Single Input Power ConfigurationOptional Dual Input Power Configuration NO. Power ICF REC Fuse Control Circuit UnitSupply 30HX Unit Voltage Compressor Compressor a Compressor B Size Compressor Electrical DataRLA LRA WD RLAHvac Guide Specifications Guide specificationsGuide specifications Page Carrier Corporation Syracuse, New York