ii
Mounting the Motor to the Pump...................................................................................................22
Impeller Removal...........................................................................................................................23
Inspection .......................................................................................................................................23
Impeller Clearance Adjustment .....................................................................................................23
Models: DA, DD, DE, DH, DK, DM ...............................................................................................24
Exploded View Drawing................................................................................................................24
Seal Replacement/Maintenance .....................................................................................................25
Model: MT ........................................................................................................................................27
Exploded View Drawing................................................................................................................27
Seal Replacement/Maintenance .....................................................................................................28
4.3 Cooling Solenoid Valve Maintenance .......................................................................................30
4.4 Low Pressure Safety Switch ......................................................................................................30
4.5 High Temperature Safety Switch ...............................................................................................30
4.6 Heater Assembly ........................................................................................................................31
Models: DA, DB, DC, DD, DE, DF, DG, DH, DJ, DK, DL, DM, DN, DO, DP, DQ, DR, DT, DU,
DV, DW, DX, DY, DZ .....................................................................................................................31
4.7 Heater Element Wiring ..............................................................................................................33
Models: HN, HR, HW, HX, HY, HZ, MT .......................................................................................33
Section 5 – Eurotherm Controller (3000 Series) ............................ 34
5.1 Operation....................................................................................................................................34
Home List Navigation .......................................................................................................................34
Keys ..................................................................................................................................................35
5.2 Automatic Tuning ......................................................................................................................35
5.3 Troubleshooting .........................................................................................................................37
5.4 Alarm Indicators ........................................................................................................................37
To Acknowledge an Alarm ...............................................................................................................37
5.6 Restarting the Automatic Air Purge Timer (After Start-Up) .....................................................39
5.7 Manual Air Purge Operation (After Start-Up) ...........................................................................39
5.8 Remote Set Point and Retransmission “Scaling”.......................................................................39
Section 6 – Options .................................................................. 40
6.1 Pressure Regulator .....................................................................................................................40
Exploded View Drawing ..................................................................................................................40
Maintenance Instructions ..................................................................................................................40
Adjustment ........................................................................................................................................40
6.2 Instruction for Initial Start-Up of Non-Pressurized Supply Tank ..............................................41
6.3 Instructions for Initial Start-Up of Pressurized Supply Tank ....................................................41
6.4 System “Z” Purge Instructions for All Systems ........................................................................42
6.5 NPS Option ................................................................................................................................43
Water Connections ............................................................................................................................43
Unit Operation ..................................................................................................................................43
Initial Starting Procedure ..................................................................................................................43
Adjusting the Vacuum ......................................................................................................................44
6.6 Operation of Automatic Process (Mold) Purge .........................................................................44
6.7 Cool Down and Automatic Shut Off .........................................................................................45
Adjusting Auto Cool Down/Shutdown Timer ..................................................................................45
6.8 Emergency Stop .........................................................................................................................45
6.9 Valved Process Bypass ..............................................................................................................45
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