Manitowoc QD1092N Specifications download pdf (Page 21)

Section 2 Installation Instructions

Part Number 000001759 2-11

CALCULATING REMOTE CONDENSER

INSTALLATION DISTANCES

Line Set Length

The maximum length is 30 m.

The ice machine compressor must have the proper oil

return. The receiver is designed to hold a charge

sufficient to operate the ice machine in ambient

temperatures between -29°C and 49°C, with line set

lengths of up to 30 m.

Line Set Rise/Drop

The maximum rise is 11 m.

The maximum drop is 4.5 m.

Calculated Line Set Distance

The maximum distance is 45 m.

Line set rises, drops, horizontal runs (or combinations of

these) in excess of the stated maximums will exceed

compressor start-up and design limits. This will cause

poor oil return to the compressor.

Make the following calculations to make sure the line set

layout is within specifications.

1. Insert the measured rise into the formula below.

Multiply by 1.7 to get the calculated rise.

(Example: A condenser located 3 meters above the

ice machine has a calculated rise of 5 meters.

2. Insert the measured drop into the formula below.

Multiply by 6.6 to get the calculated drop.

(Example. A condenser located 3 meters below the

ice machine has a calculated drop of 20 meters.

3. Insert the measured horizontal distance into the

formula below. No calculation is necessary.

4. Add together the calculated rise, calculated drop,

and horizontal distance to get the total calculated

distance. If this total exceeds 45 m, move the

condenser to a new location and perform the

calculations again.

Maximum Line Set Distance Formula

Caution

If a line set has a rise followed by a drop, another

rise cannot be made. Likewise, if a line set has a

drop followed by a rise, another drop cannot be

made.

Step 1. Measured Rise 10.7 m Maximum ______ x 1.7 = _______ Calculated Rise

Step 2. Measured Drop 4.5 m Maximum ______ x 6.6 = _______ Calculated Drop

Step 3. Measured Horizontal Distance 30.5 m Maximum _______ Horizontal Distance

Step 4. Total Calculated Distance 45 m

Maximum

_______ Total Calculated Distance

Combination of a Rise and a

Horizontal Run

Combination of a Drop and a

Horizontal Run

Combination of a Rise, a Drop

and a Horizontal Run

SV1196 SV1195 SV1194

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Manitowoc QD1092N Specifications Page 21

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