Carrier 40RU manual Fire Hazard

Page 19

Power Supply and Wiring - Check the unit data plate to ensure that available power supply matches electrical characteristics of the unit. Provide a disconnect switch with an integrated lock-out feature of size required to provide adequate fan motor starting current. See Tables 4-6 for unit electrical data.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Do not use gas piping as an electrical ground. Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code); ANSI/NFPA 70, latest edition (in Canada, Canadian Electrical Code CSA [Canadian Standards Association] C22.1), and local electrical codes.

!WARNING

FIRE HAZARD

Failure to follow this warning could result in intermittent operation or performance satisfaction.

Do not connect aluminum wire between disconnect switch and fan coil unit. Use only copper wire.

(See Fig. 15)

FAN SCROLL

 

FAN

 

 

 

CONTACTOR

 

 

 

BOX

 

MOTOR

 

WIRE

 

AND DRIVE

 

 

 

 

ACCESS

 

CONDENSATE

 

FAN DRIVE

 

 

PULLEY

 

DRAIN

 

 

 

 

 

CONNECTION

 

 

 

(HORIZONTAL)

 

 

 

 

 

COIL

 

FILTER

 

TXV BULB

 

ELEMENTS

 

 

 

ACCESS

 

 

 

 

 

 

REFRIGERANT

 

FILTER

 

PIPING ACCESS

 

 

 

 

RETAINER

 

CONDENSATE

 

CLIP

 

 

 

 

DRAIN

 

 

 

CONNNECTION

 

 

 

(VERTICAL)

40RU

 

LEGEND

 

 

 

 

 

TXV — Thermostatic Expansion Valve

 

 

 

 

C10693

 

Fig. 16 - Wiring and Service Access

(Side Panel Removed)

Fan motors are factory-installed on all units. Indoor-fan contactors are located in the fan contactor box behind the side access panel (see Fig. 16 and 17). Wire the thermostat to the 24-v control circuit terminal block located in the side of the fan contactor control box, according to Fig. 18 or the unit label diagram. If the air handler is part of a split system, complete the wiring from the condensing unit to the thermostat shown in Fig. 18.

ELECTRIC

DISCONNECT

SWITCH

COPPER

WIRE ONLY

ALUMINUM

WIRE

A93033

Fig. 15 - Disconnect Switch and Unit

Install disconnect switch and power wiring in accordance with all applicable local codes. See Fig. 15-17 and the unit label diagram. Connect power wiring with 1/4-in. ring terminal.

FAN CONTACTOR

24V TERMINAL BLOCK

POWER

WIRING KNOCKOUT

A

J R

V 00 6

C ° 5 0 1

23

22

21

W

31

21

11

C10694

Fig. 17 - Fan Contactor Box and Terminal Block

(Cover Removed) (Typical)

19

Image 19
Contents Installation, Start---Up Service Instructions PRE-INSTALLATION 40RUA Physical Data, English Cooling Units 40RUA Physical Data, SI Cooling Units Unit 40RUQ 40RUQ Physical Data, English Heat Pump Units138 40RUA Physical Data, SI Heat Pump UnitsOperating charge kg Fins/m 591Unit 40RUS 40RUS Physical Data, English Chilled Water UnitsChilled Water Coil Max Working Pressure kPag at 125 C Operating Weight kg Base Unit40RUS Physical Data, SI Chilled Water Units Face Area sq m Upper Face Area sq m Lower Rows...Fins/m40RUS*25 Unit Unit Weight40RUA*25 40RUQ*2540RUA*28 1050 40RUA*30 1062 40RUS*28 1035 40RUS*30 1042 Dimensions Sizes 28U a a 2 5 a 1 a 6 0 a 0 a Preferred Suspension Technique Refrigerant and Chilled Water Piping Access Holes Face-Split Coil Suction and Liquid Line Piping Typical Feeder Tubes PER Distributor Factory-Installed Nozzle and Distributor DataFitting Requirements Unit Coil Type TXV Distributor STD40RUA*28 Fitting RequirementTypical 40RUS Chilled Water Piping Condensate Drains Fire Hazard Electrical Data, Alternate Motors Electrical Data, Standard Motors25, 28 Unit Voltage Maximum40RU Holding VATypical Fan Discharge Connections for Multiple Fan Units 40RUA and 40RUQ only Label, TXV AdjustmentManufacturer Lubricant Lubricant DataFan Pulley Alignment Align as follows Fan RotationRemove Filter Retainer Clip Fan Motor Data, Alternate Motor English Fan Motor Data, Standard Motor EnglishFan Motor Data, Alternate Motor SI Fan Motor Data, Standard Motor SIFAN Drive Standard Drive Data, 60 Hz EnglishMedium-Static Drive Data, 60 Hz English Motor DriveStandard Drive Data, 60 Hz SI High-Static Drive Data, 60 Hz EnglishHigh-Static Drive Data, 60 Hz SI Medium-Static Drive Data, 60 Hz SIUnit External Static Pressure kPa 000 542 577 1042 646 716 785 849 907 2830 10.77 11.94 13.08 1087 14.15 15.12 Unit Airflow Pressure Drop FACTORY-SUPPLIED Pressure Drop English40RU Catalog No 40RU---07SI 40RUA, 40RUQ START-UP ChecklistComp A1 Comp B1 Check Voltage Imbalance

40RU specifications

The Carrier 40RU is a highly regarded solution in the realm of commercial cooling systems, specifically designed for applications requiring reliable, long-lasting climate control. This unit stands out due to its engineering excellence, innovative features, and efficient operation.

One of the primary attributes of the Carrier 40RU is its robust construction. Engineered to withstand varying environmental conditions, this unit is built with high-quality materials that promote durability and longevity. The design incorporates corrosion-resistant finishes, which enhances its resilience, especially in outdoor installations.

The Carrier 40RU is equipped with advanced cooling technologies, including variable speed compressors and innovative coil designs. These technologies contribute to its exceptional energy efficiency, allowing the unit to optimize performance while minimizing energy consumption. The variable speed compressors adjust their output based on the current cooling demand, which not only saves energy but also reduces wear and tear on the equipment.

Additionally, the system features a sophisticated control platform that allows for ease of operation and monitoring. This control system offers numerous settings and modes, enabling users to customize their cooling experience based on specific needs. Integration with smart building systems is also possible, providing even greater flexibility and energy management capabilities.

The 40RU model includes a comprehensive filtration system that enhances indoor air quality by effectively capturing dust, allergens, and other particulates. This feature is essential for commercial spaces where maintaining a clean and healthy environment is paramount.

In terms of performance metrics, the Carrier 40RU offers impressive cooling capacities suitable for various applications, from small offices to large commercial buildings. Its noise levels are also minimized through the application of advanced acoustic insulation, ensuring a comfortable environment for occupants.

Moreover, the Carrier 40RU is designed with ease of maintenance in mind. Regular service points are readily accessible, allowing technicians to perform routine checks and repairs efficiently. This design consideration is crucial for minimizing downtime and ensuring the system operates optimally.

In summary, the Carrier 40RU combines rugged construction, energy-efficient technologies, advanced controls, and superior filtration to deliver an outstanding cooling solution for commercial applications. Its versatility, coupled with robust performance characteristics, makes it a preferred choice among HVAC professionals and building managers alike. Whether for new installations or upgrades, the 40RU ensures reliability and comfort in any environment.