Manitowoc QD1092N Specifications download pdf (Page 22)

Installation Instructions Section 2

2-12 Part Number 000001759

LENGTHENING OR REDUCING LINE SET LENGTHS

In most cases, by routing the line set properly,

shortening will not be necessary. When shortening or

lengthening is required, do so before connecting the line

set to the ice machine or the remote condenser. This

prevents the loss of refrigerant in the ice machine or

condenser.

The quick connect fittings on the line sets are equipped

with Schraeder valves. Use these valves to recover any

vapor charge from the line set. When lengthening or

shortening lines, follow good refrigeration practices and

insulate new tubing. Do not change the tube sizes.

Evacuate the lines and place about 143g of vapor

refrigerant charge in each line.

CONNECTING A LINE SET

1. Remove the dust caps from the line set, condenser

and ice machine.

2. Apply refrigeration oil to the threads on the quick

disconnect couplers before connecting them to the

condenser.

3. Carefully thread the female fitting to the condenser

or ice machine by hand.

4. Tighten the couplings with a wrench until they

bottom out.

5. Turn an additional 1/4 turn to ensure proper brass-

to-brass seating. Torque to the following

specifications:

6. Check all fittings for leaks.

REMOTE RECEIVER SERVICE VALVE

The receiver service valve is closed during shipment.

Open the valve prior to starting the ice machine.

1. Remove the top and left side panels.

2. Remove the receiver service valve cap.

3. Backseat (open) the valve.

4. Reinstall the cap and panels.

Backseating the Receiver Service Valve

Liquid Line Discharge Line

13.5-16.2 N•m 47.5-61.0 N•m

SV1603

REMOVE FRONT, TOP,

AND LEFT SIDE PANEL

FOR ACCESS TO

RECEIVER VALVE

TURN

COUNTERCLOCKWISE TO

OPEN

RECEIVER SERVICE

VALVE CAP (TURN

COUNTERCLOCKWISE TO

REMOVE)

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Manitowoc QD1092N Specifications Page 22

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