Equipment Selection Procedure - LG Mega LS090HEV2 Engineering Manual

Single zone mega and mega 115v wall mounted

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Engineering manual (85 pages)

Installation manual (79 pages)

Installation manual (75 pages)

Table of Contents

Cooling / Heating Correction Factors

For Single Zone Mega Wall Mounted systems, calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit. Also,

determine the elevation difference of the indoor unit above or below the outdoor unit. Find corresponding cooling or heating capacity correc-

tion factors as shown below. Multiply the correction factors by the cooling or heating capacity obtained from the capacity tables using design

conditions. The resultant is the NET cooling or heating capacity.

Cooling and Heating Capacity Coefficient

Table 31:

LS-090HEV2

Rate of

LS-120HEV2

Capacity

LS-180HEV2

Change (%)

LS-240HEV2

Table 32:

LS-090HXV

Rate of

Capacity

Change (%)

LS-180HXV

Equivalent Piping Length for Piping Components

Table 33: Equivalent Piping Length for Elbows.

Component

1/4

3/8

Elbow (ft.)

0.5

0.6

Altitude Correction Factor

The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted alti-

tude correction factors using ASHRAE guidelines must be applied.