Lennox International Inc 2SCU13 warranty Three Phase Wiring Diagram P/N

Page 17

B4

 

 

 

C1

 

 

 

 

 

OUTDOOR

 

 

 

 

 

 

 

 

FAN

 

 

OUTDOOR FAN

 

A4

 

 

 

 

 

 

CAPACITOR

TIMED OFF

 

 

 

 

 

 

 

 

 

PURPLE

 

 

 

CONTROL

TO 24 VAC

BLACK

 

 

 

(IF USED)

 

 

 

POWER SOURCE

ORANGE

 

 

 

 

 

 

 

 

RED

2

3

1

10 VA MINIMUM

BLACK

 

 

 

 

 

NEC CLASS 2

 

BLACK

 

 

 

 

 

 

C

Y1

COMPRESSOR

BLACK

T3

T2

T1

 

 

 

 

 

B1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

 

 

 

 

 

 

 

 

CRANKCASE HEATER

CONTACTOR

 

 

 

 

 

 

 

 

K1

L3

L2

L1

 

 

 

 

 

(IF USED)

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

HR1

 

 

 

 

 

 

 

L1

 

 

 

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

 

 

GROUND

 

 

 

 

 

 

L3

 

 

 

 

 

 

208-230/60/3

 

LUG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GROUND

 

208-230/60/3

S40

 

 

 

L1

 

K1-1

BLACK

B1

 

 

 

 

 

 

1

 

 

 

BLACK

 

L2

 

 

 

 

 

 

 

 

 

L3

 

 

 

BLACK

 

 

 

 

 

 

 

 

 

RED

 

ORANGE

GROUND

 

 

C1

BLACK

EQUIPMENT

HR1

 

 

 

 

 

 

 

 

 

 

 

S40

 

PURPLE

 

 

 

 

 

B4

 

 

 

 

 

 

2

S4 HIGH

S24 LOSS

PRESSURE

OF CHARGE

SWITCH

SWITCH

(IF USED)

(IF USED)

S4

A4

S24

2

 

 

3

 

K1

1

 

Y1 C

FOR USE WITH COPPER CONDUCTORS ONLY. REFER TO UNIT RATING

1PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE.

TO 24 VAC

POWER SOURCE

10 VA MINIMUM

NEC CLASS 2

2 JUMPER IS USED WHEN TOC IS NOT USED.

WARNING--

ELECTRIC SHOCK HAZARD, CAN CAUSE INJURY OR DEATH. UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES.

LINE VOLTAGE FACTORY INSTALLED

LINE VOLTAGE FIELD INSTALLED

24 VOLT FACTORY INSTALLED

CLASS II VOLTAGE FIELD INSTALLED

 

DESCRIPTION

KEY

COMPONENT

A4

CONTROL - TIMED OFF

B1

COMPRESSOR

B4

MOTOR - OUTDOOR FAN

C1

CAPACITOR - OUTDOOR FAN

HR1

HEATER - COMPRESSOR

K1-1

CONTACTOR - COMPRESSOR

S4

SWITCH - HIGH PRESSURE

S24

SWITCH - LOSS OF CHARGE

S40

THERMOSTAT - CRANKCASE

Three Phase Wiring Diagram P/N 48436-001

Figure 13

# 48283B006

Page 17

Image 17
Contents Table of Contents Installation and Maintenance InstructionsInstallation Clearances InstallationTorque Table Slab MountingSlab Mounting Electrical WiringWind Barrier Construction Thermostat DesignationsInstalling Refrigerant Line Outside Unit Placement InstallationBrazing Connection Procedure Refrigerant Line Set DiametersRefrigerant Line Sets Transition from Vertical to Horizontal Refrigerant Line Sets Installing Horizontal RunsExpansion Valve Systems Refrigerant Metering DeviceFixed Orifice Systems To Access the Schrader Port Metering Device InstallationTo Open Liquid or Suction Line Service Valve Fixed Orifice DataTo Close Liquid or Suction Line Service Valve Ball Type Service Valve Valve OpenSuction Line Ball Type Service Valve Leak TestingEvacuation Refrigerant Charging Refrigerant Charge AdjustmentSTART-UP Outdoor Liquid Subcooling ±1F Temp Charge Using Weigh-In Method Fixed Orifice/TXV SystemsSubcooling Values for Fixed Orifice or TXV Systems Approach Values for TXV Systems Check Charge Using Normal Operating PressuresOutdoor Ambient Temp Superheat ModelFixed Orifice RFC Normal Operating PressuresOperation MaintenanceIndoor Coil Indoor UnitStart-Up and Performance Checklist Single Phase Wiring Diagram P/N Three Phase Wiring Diagram P/N Limited Warranty

2SCU13 specifications

Lennox International Inc. is renowned for its innovation in heating, ventilation, air conditioning, and refrigeration (HVACR) systems. One of its standout products is the 2SCU13 model, which embodies the company's commitment to energy efficiency and customer comfort. This air conditioning unit is particularly appreciated in both residential and light commercial applications for its robust performance and advanced features.

The 2SCU13 is designed with a focus on energy efficiency, boasting a SEER rating of up to 14. This not only eases the burden on utility bills but also aligns with environmentally conscious practices by reducing carbon footprints. The unit’s efficiency is further enhanced by its scroll compressor, which is known for reliable performance and quiet operation.

One of the key characteristics of the 2SCU13 is its two-stage cooling system. This technology allows the unit to operate at two different cooling capacities, adapting to varying temperature conditions. By running at a lower capacity during mild weather, the 2SCU13 minimizes energy consumption, while still ensuring optimal comfort during hotter days by ramping up to full capacity when needed. This adaptability also contributes to a more consistent temperature throughout the space being cooled.

Another notable feature is the unit's humidity control capabilities. The two-stage operation also aids in managing indoor humidity levels, making it an excellent choice for areas with high humidity. Proper humidity control not only enhances comfort but also plays a crucial role in improving indoor air quality.

The design of the 2SCU13 ensures durability and longevity. It comes equipped with a rugged cabinet that withstands the elements, along with a baked-on powder coat finish that resists rust and corrosion. The unit also includes a protective grille that serves to shield the coil from debris, further enhancing its lifespan.

With easy installation and maintenance in mind, Lennox has incorporated service-friendly features into the design of the 2SCU13. The unit includes a convenient access panel that simplifies routine checks and repairs, making it easier for homeowners and technicians alike.

Overall, Lennox International Inc. 2SCU13 represents a harmonization of efficiency, comfort, and durability, making it a noteworthy choice among HVAC systems. Its advanced technology and design features ensure that it meets the evolving needs of consumers while providing reliable performance for years to come.