Manitowoc Indigo Series Installation, Use & Care Manual

Also see for b970 series: Technician's handbook

Contents

Section 2 Installation InstructionsPart Number 000007345 2/14 19LENGTHENING 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,purge with nitrogen and insulate all tubing. Do notchange the tube sizes. Evacuate the lines and placeabout 5 oz (143g) of vapor refrigerant charge in eachline.CONNECTING 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.3. 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 brass-to-brass seating. Torque to the followingspecifications:6. Check all fittings and valve caps for leaks.7. Make sure Schraeder cores are seated andSchraeder caps are on and tight.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.Backseating the Receiver Service ValveLiquid Line Discharge Line10-12 ft lb.(13.5-16.2 N•m)35-45 ft lb.(47.5-61.0 N•m)SV1603TURNCOUNTERCLOCKWISETO OPENRECEIVER SERVICEVALVE CAP (TURNCOUNTERCLOCKWISETO REMOVE)