Panasonic CU-2S18NBU-1 service manual Installation Information, Check Points

Page 14

9. Installation Information

9.1Check Points

QUICK GUIDE

PIPING & ELECTRICAL SPECIFICATION

 

 

 

 

 

 

 

Min. pipe

Max.

 

Min. total

 

 

 

 

 

 

 

Piping size

Standard

 

Max.

pipe

 

 

Power

OD-ID

Indoor(ID) & Outdoor(OD) units:

Capacity

 

Max.

length for

from

Additional

Power

Refrigerant

 

 

pipe

total

length for

supply

connection

Possible Combination Patterns

(Btu/h)

 

 

Elevation

each ID

OD to

refrigerant

supply

 

 

 

 

 

length

 

unit

each ID

length

additional

 

 

wire size

wire size

 

 

 

Gas

Liquid

 

 

 

gas

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor (OD): CU-2S18NBU-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor (ID): 2 UNITS OF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS-S9NKUW-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230V

 

 

Outdoor (OD): CU-2S18NBU-1

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor (ID): 2 UNITS OF

16700

R410A

ø3/8"

ø1/4"

24.6 ft

49.2 ft

9.8 ft

82.0 ft

164.0 ft

65.6 ft

0.2 oz / ft

60 Hz

AWG12

AWG16

CS-S12NKUW-1

(ø9.52mm)

(ø6.35mm)

MCA 20A

 

 

 

 

 

 

 

 

 

 

 

 

MOP 25A

 

 

Outdoor (OD): CU-2S18NBU-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor (ID): 1 UNIT OF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS-S9NKUW-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ 1 UNIT OF CS-S12NKUW-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example:

If total piping length of all installed indoor units is at 68.6 ft, the quantity of additional refrigerant should be 0.6 oz .......... (68.6 – 65.6) ft x 0.2 oz/ ft

= 0.6 oz.

14

Image 14
Contents Table of Contents Disassembly and Assembly Instructions Safety Precautions Items to be followed are classified by the symbolsPage Specification Model Outdoor Unit CU-2S18NBU-1Multi split combination possibility Dimensions Refrigeration Cycle Diagram Block Diagram Wiring Connection Diagram Electronic Circuit Diagram Printed Circuit Board Main Printed Circuit BoardNoise Filter Printed Circuit Board Installation Information Check PointsInstallation Instruction Outdoor Unit Installation DiagramOutdoor Unit Installation Guidelines Connecting the Piping to Outdoor Unit Gas Leak CheckingEvacuation of the Equipment Heat Insulation Cooling Operation Powerful OperationOperation Control Outdoor fan controlProtection Control Electronic Parts Temperature Rise Protection 1 CoolElectronic Parts Temperature Rise Protection 2 Cool Freeze Prevention control CoolCooling overload control Cool Time Delay Safety Control Restart ControlIPM power transistor Protection Control 12.7 30 seconds Force OperationCompressor discharge high pressure protection control Compressor Protection Control Gas leak detection controlValve close detection control Pump Down Operation Servicing ModeWiring Error Check Test OperationPower Save Mode Mode priority functionTroubleshooting Guide Self Diagnosis FunctionIndoor high Check indoor heat Exchanger Removing the Cabinet Top Plate and Cabinet Front Plate Disassembly and Assembly InstructionsOutdoor Unit Removal Procedure Remove the Control Board Cover and Particular PlatesRemoving the Control P.C. Board Removing the Propeller Fan and Fan MotorPage CS-S9NKUW-1 CU-2S18NBU-1 Technical DataOperation Characteristics Page CS-S9NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1 CU-2S18NBU-1 Page CS-S12NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1 Page Exploded View and Replacement Parts List REF. no Description & Name QTY Shock Absorber Left