18Section 4: Mechanical InstallationConnecting the pre-filter to the dryerPD0046 – PD0360 models• Attach pre-filter (purchased separately) utilising a pipenipple and/or pipe adapter.• Pipe away condensate with tubing from drain outlet.Ensure condensate is drained into an oil/waterseparator.• Fit any further filtration and/or ancillary equipment.• Pre-filter is typically supplied with an autodrain installedin the bowl drain port. On DMC models, this canbe replaced with a solenoid drain valve which is anoptional extra sold separately.• It is recommended that a bypass line including XA filteris installed, as per figure 4.1.All tubing should be secured up to the point ofdrain to prevent whipping during discharge.Connecting the optional pre-filter drain valve• Available on DMC models only.• If necessary, remove existing autodrain valve frompre-filter.• Install pipe adapter into pre-filter drain port.• Install optional solenoid drain valve onto pipe adapter(s)taking care to note ow direction as indicated by arrowetched into the side of the drain valve body.• Pipe away condensate with tubing from drain outlet.Ensure condensate is drained into an oil/waterseparator.All tubing should be secured up to the point ofdrain to prevent whipping during discharge.18PRODRY PD0046 - PD0360 Instruction Manual | Walker Filtration |••••••s.All tubing should be secured up to the point of drain toprevent whipping du ring discharge.Fig ure 4.9 : Conn ecting a pre- filte rSection 4: Mechanical Installation••• .Available on DMC models only.• Install optional solenoid drain valve onto pipe adapter(s)etched into the side of the drain valve body.•All tubing should be secured up to the point of drain toprevent whipping du ring discharge.Fig ure 4.10 : Co nn ecting filte r dr ainPipe away condensate with tubing from drain outlet.Ensure condensate is drained into an oil/water separator.Figure 4.9: Connecting a pre-filter18PRODRY PD0046 - PD0360 Instruction Manual | Walker Filtration |••••••s.All tubing should be secured up to the point of drain toprevent whipping du ring discharge.Fig ure 4.9 : Conn ecting a pre- filte rSection 4: Mechanical Installation••• .Available on DMC models only.• Install optional solenoid drain valve onto pipe adapter(s)etched into the side of the drain valve body.•All tubing should be secured up to the point of drain toprevent whipping du ring discharge.Fig ure 4.10 : Co nn ecting filte r dr ainPipe away condensate with tubing from drain outlet.Ensure condensate is drained into an oil/water separator.Figure 4.10: Connecting filter drain