ICE MACHINES Q-Model Service Manual

Installation Instructions Section 2LENGTHENING OR REDUCING LINE SET LENGTHSIn most cases, by routing the line set properly,shortening will not be necessary. When shortening orlengthening is required, do so before connecting the lineset to the ice machine or the remote condenser. Thisprevents the loss of refrigerant in the ice machine orcondenser.The quick connect fittings on the line sets are equippedwith Schraeder valves. Use these valves to recover anyvapor charge from the line set. When lengthening orshortening lines, follow good refrigeration practices andinsulate new tubing. Do not change the tube sizes.Evacuate the lines and place about 5 oz (143g) of vaporrefrigerant charge in each line.REMOTE RECEIVER SERVICE VALVEThe 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.REMOVE FRONT, TOP,AND LEFT SIDE PANELFOR ACCESS TORECEIVER VALVECONNECTING A LINE SET1. Remove the dust caps from the line set, condenserand ice machine.2. Apply refrigeration oil to the threads on the quickdisconnect couplers before connecting them to thecondenser.TURNCOUNTERCLOCKWISE TOOPEN3. Carefully thread the female fitting to the condenseror ice machine by hand.4. Tighten the couplings with a wrench until theybottom out.5. Turn an additional 1/4 turn to ensure proper brassto-brassseating. Torque to the followingspecifications:SV1603RECEIVER SERVICEVALVE CAP (TURNCOUNTERCLOCKWISE TOREMOVE)Liquid Line10-12 ft lb.(13.5-16.2 N•m)Discharge Line35-45 ft lb.(47.5-61.0 N•m)Figure 2-9. Backseating the Receiver Service Valve6. Check all fittings for leaks.2-16 Part No. 80-1100-3