Siemens Maxum II PD PA AP User Manual

Table of contents
1 Oven Types..................................................................................................................................................7
1.1 Isothermal Air Bath Oven Heater System (Single and Split)....................................................8
1.1.1 Heater Assembly Purge...........................................................................................................8
1.1.2 Temperature Limiting.............................................................................................................10
1.2 Programmed Temperature Air Bath Oven Heater System.....................................................11
1.2.1 IS Probe and Barrier..............................................................................................................12
1.3 Isothermal Airless Oven Heater System................................................................................13
1.4 Maintenance Considerations for Airbath and Airless Ovens..................................................15
1.5 Airbath Heater Assembly Replacement.................................................................................16
1.6 Airless Heater Replacement..................................................................................................16
1.7 Modular Oven Heater System................................................................................................18
1.8 Maintenance Considerations for Modular Ovens...................................................................19
2 Using Small Tubing Fittings........................................................................................................................21
3 Temperature Control Module (TCM)..........................................................................................................23
3.1 Replacing a TCM...................................................................................................................24
4 Valves.........................................................................................................................................................27
4.1 Solenoid Valves.....................................................................................................................27
4.1.1 Solenoid Valve Control Module (SVCM)................................................................................27
4.1.2 Replacing a Solenoid Valve...................................................................................................30
4.2 Liquid Injection Valve.............................................................................................................31
4.2.1 SLIV Maintenance Overview..................................................................................................37
4.2.2 Liquid Injection Valve Component Locations.........................................................................38
4.2.3 Troubleshooting.....................................................................................................................39
4.2.4 Service Procedures................................................................................................................40
4.2.5 Siemens Liquid Injection Valve Specifications.......................................................................44
4.3 Model 50 Valve......................................................................................................................45
4.3.1 Basic Maintenance: Model 50 Valve......................................................................................46
4.3.2 Preventing Port to Port Leaks................................................................................................46
4.3.3 Maintenance Considerations..................................................................................................46
4.3.4 Model 50 Valve Maintenance Procedure...............................................................................48
4.3.5 Model 50 Valve Specifications...............................................................................................53
4.4 Model 20 Valve......................................................................................................................54
4.4.1 Basic Maintenance.................................................................................................................54
4.4.1.1 Maintenance Considerations..................................................................................................54
4.4.1.2 Diagnostic Procedures...........................................................................................................56
4.4.1.3 Model 20 Valve Cap Maintenance Procedure........................................................................57
4.4.2 Disassembly and Cleaning.....................................................................................................59
4.4.2.1 M20 Description.....................................................................................................................59
Maxum II Valves and Oven Components
Service Manual, 10/2018, A5E42019844001 3

Siemens Maxum II PD PA AP Specifications

General

Brand	Siemens
Model	Maxum II PD PA AP
Category	Control Unit
Language	English