Operation & Maintenance Manual

Transcription

1 Operation & Maintenance Manual Contract No.: Date of Issue:

2 IMPORTANT: The technical/maintenance manual is to be regarded by the owner/operator as an integral part of the equipment, which must be available for use by owner/service engineer as required. It must be available during the life of the equipment and passed to any subsequent owner/user if the equipment is sold or transferred elsewhere. The Vernacare Corporation Tel: Fax: Web:

3 Manufacturer s Warranty If this product or any component part should prove defective in workmanship or material under normal use within one year of the date on which this product was delivered new to the ultimate purchaser, it will be replaced by the manufacturer. Such replacement shall be the sole remedy of the purchaser and there shall be no liability on the part of the manufacturer or distributor for any loss or damages incidental, direct or consequential, arising out of the use of, or inability to use this product. THIS EXPRESS WARRANTY IS EXCLUSIVE AND IN SUBSTITUTION FOR ALL OTHER WARRANTIES AND REMEDIES OF WHATSOEVER KIND. NO OTHER WARRANTIES OR GUARANTEES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY TO THE PRODUCT OR ANY COMPONENT PART OF IT AND ALL SUCH WARRANTIES AND GUARANTEES ARE HEREBY EXPRESSLY EXCLUDED. This warranty does not cover any damage or defect due to accident, misuse, abuse or neglect.

4 Operating & Maintenance Manual Table of Contents Safety... 1 Safety Instructions... 2 Safety Symbols and Instructions... 2 Instructions Located Directly on the Machine... 2 Electrical Safety... 2 Preliminary Operating Advice... 3 Staff Qualifications and Training... 3 Dangers which may arise from non-observance of the Safety Instructions... 3 Safety Conscious Working... 3 Safety Instructions for Maintenance, Inspection and Installation... 4 Arbitrary Modifications and Production of Replacement Parts... 4 Unacceptable Modes of Operation... 4 Installing & Commissioning... 5 Installation Instructions... 6 Installation Storage (Customer) Commissioning Routine Maintenance Daily Monthly Quarterly Cleaning Recommendations Lubrication Ordering Spares Technical Information Chapter Contents Information About The Vernacare SOLO About The Machine The Pulveriser Operating the SOLO Operating Your Machine The Indicator Panel Identification of the symbols and indicator lights Operating Your Machine How To Operate Your Machine Operating Advice Operator Troubleshooting Troubleshooting Functional Problems Operational Indicators: Start light is green on power on. Goes out while operating Possible problems Start indicator flashes green Start indicator flashing, Fault indicator lit Start and Cycle indicator flashing, Fault indicator lit Cycle indicator lit, Fault indicator flashing Cycle and Drain Block indicators lit Water Level and Fault indicators lit Water Level indicator flashing, Fault indicator lit Machine not running or will not start - No lights Machine not running - Fault indicator lit Servicing Servicing February /1

5 Operating & Maintenance Manual Introduction General Assembly General Assembly Parts List Upper Lid Sub-Assembly Upper Lid Sub-Assembly Parts List Handle Latch Mechanism Handle Latch Mechanism Parts List Handle Latch Mechanism Operation: Handle Removal Lid Removal Lid operation Cleaning the Lid Spray Vent Replacing the Gas Springs Replacing the Lid Seal Mechanical Assembly Mechanical Assembly...43 Servicing the Water Pump...43 Servicing the Water Pump Replacing The Pump Motor and Seal Housing Sub-Assembly...44 Motor and Seal Housing Sub-Assembly...45 Replacing The Impeller Blades Replacing the Mechanical Seal HPR Solenoid Assembly HPR Solenoid Assembly Parts List Cleaning the Inlet Solenoid Filter Plumbing Assembly SOLO Plumbing Assembly Parts List Plumbing...51 Internal Water Supply Plumbing/Water Controls...52 The Drain Block/Water Level Controls Hints: Servicing The Drain Block Warning Device Replacing the Air Vent Valve/In Line Valve Deodorising Feed Sub-assembly Servicing the Deodoriser Feed Sub-assembly Cistern Sub-assembly Cistern Sub-assembly Connection diagram Electronics...59 Important Electrical Information Control Enclosure Assembly...60 Control Enclosure Assembly Parts List Servicing The Printed Circuit Board...61 To Remove The P.C.B Secondary Fuse/P.C.B Failure Recommended spare parts list /1 February

6 Notes

7 Chapter 1 Safety Chapter Contents Safety Instructions... 2 Safety Symbols and Instructions... 2 Instructions Located Directly on the Machine... 2 Electrical Safety... 2 Preliminary Operating Advice... 3 Staff Qualifications and Training... 3 Dangers Arising from Non-Observance of Safety Instructions... 3 Safety Conscious Working... 3 Safety Instructions for Maintenance, Inspection and Installation 4 Arbitrary Modifications and Replacement of Product Parts... 4 Unacceptable Modes of Operation / 1 February 2009 Page 1

8 Safety Safety Instructions This manual provides instructions which must be followed when installing and servicing the machine. Please note: The machine should only be installed by suitably qualified technicians who have read this manual. A copy of the manual must always be at hand where the machine or installation is being used. Relevant sections of this manual may be printed from the manual on the CD-ROM that comes with the machine. In addition to these general safety instructions you must observe the special safety instructions which are included in other sections of this manual. Safety Symbols and Instructions This symbol is used to denote a general hazard or to emphasise instructions which must be followed for safety reasons. The text for such instructions is in bold. This symbol is used as a warning against electric voltage and possible risk of electric shock to personnel. Single phase supply is at 120 volts. This symbol indicates that Personal Protection Equipment (PPE) is required or advised. Instructions Located Directly on the Machine! All instructions located directly on this machine must be observed and be kept completely legible at all times. Electrical Safety Low voltage electrical equipment (less than 1000 V), can cause serious or fatal injuries. Any person installing or maintaining this equipment should be fully competent to carry out this work. Such persons should be familiar with the relevant codes of practice or standards which are applicable to the country of installation. Page 2 February / 1

9 Safety Preliminary Operating Advice This machine is designed to operate on a fully automatic cycle. During this cycle it will only stop if a fault occurs or if it is overloaded. If the hopper is overloaded beyond the recommended capacity the internal trip can cause the machine to stop. Continued abuse in this manner will eventually cause motor failure. If an emergency occurs, such as a foreign object being in the hopper, the machine should be stopped immediately by switching off the power at the isolator. Staff Qualifications and Training All staff who operate, maintain, inspect or install the machine must be suitably trained and qualified and have the necessary equipment or tools to carry out their tasks safely. The person who is responsible for staff supervision should define the exact areas of responsibility and scope of authority for all staff using or maintaining the machine. If a member of staff lacks the necessary knowledge, he or she must receive due training and instruction. Any training or instruction that may be required can be provided by the manufacturer or supplier. The supervisor must also make sure that the content of this manual is fully understood by the staff concerned. Dangers which may arise from non-observance of the Safety Instructions Danger to personnel and to the machine. Danger to the environment through leakage of hazardous substances. Loss of all entitlement to redress. Safety Conscious Working In addition to the safety instructions given in this manual, it is essential to follow the national accident prevention directives currently in force and any internal regulations concerning work and safety. Duty of care - Your personal safety, the safety of others, of the equipment and the environment is the responsibility of everyone / 1 February 2009 Page 3

10 Safety Safety Instructions for Maintenance, Inspection and Installation! Leakages of contaminated material must be discharged in such a way that neither personnel nor the environment are placed at risk. Statutory directives must be observed. All possible danger from electric shock must be eliminated (for details see the regulations of the country of authority and your local power supply company).! Observe equipment warning signs. The supervisor must ensure that all maintenance, inspection and installation work is carried out by authorized and qualified skilled staff, who are duly informed about the machine and/or installation after studying the manual thoroughly.! Work on the machine must only be carried out with the machine stopped and electrical power supply turned off at the isolator switch. Pumps or assemblies which convey or are in contact with harmful media must be decontaminated.! All safety devices (interlocks), must be refitted and be in working order immediately after the work is carried out, and their operations checked. Arbitrary Modifications and Production of Replacement Parts Modifications or changes to the machine are only permissible after consulting with the manufacturer. Original spare parts and accessories authorised by the manufacturer contribute to safety. If unauthorised parts are used, this will exempt the manufacturer from liability for any consequences caused by the use of those unauthorised parts. Unacceptable Modes of Operation The safe operation of the machine as delivered is guaranteed only if it is used within the manufacturer s guidelines. This machine was designed on the basis of specified conditions of operation contained within the conditions of purchase of the equipment. The specifications listed in the conditions of operation are to be regarded as limit values and must not be exceeded under any circumstances. All users should be made aware that, if the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Page 4 February / 1

11 Chapter 2 Installing & Commissioning Chapter Contents Installation instructions... 6 Installation planning... 6 Cold Water Supply... 6 Waste Outlet connection... 7 Overflow Electrical Supply... 7 Existing Supply... 8 Unpacking the machine... 8 Installation Storage (Customer) Removing from storage (Customer) Commissioning Water inlet flow restrictors Routine maintenance Cleaning Recommendations Lubrication Ordering spares / 1 February 2009 Page 5

12 Installing & Commissioning Installation Instructions Please read and familiarise yourself with the technical points contained in this section of the manual before installing this machine. Installation Planning. Find the best location for the machine. The Vernacare SOLO is primarily designed for use in sole occupancy rooms or wards en-suite. Consider the access to the main soil drain/stack for the drain connection, remembering that the maximum run of machine to the soil drain is 6 7 with a minimum fall of 1:25. Position the machine so as to allow easy access for rodding. Minimum waste pipe size / 2 (38mm). Use the minimum number of long-radius or swept bends to connect the outlet from the machine waste trap to the soil drain.! Do not use 90 degree bends After finding a satisfactory position for the machine, check the availability of mains cold water and single phase electrical supply. Sufficient space should be allowed for the removal of the front panel and to service the machine. The machine must be level in both directions. Cold Water Supply Connection via a break tank is permissible, providing sufficient head and pipe size is used to meet the minimum flow rate requirement of 1.45 US G.P.M. at connection. The Vernacare SOLO is fitted with a flow restrictor in the outlet pipe connection of the solenoid valve to optimise the water supply. This restrictor balances the water requirements of the machine to your water supply pressure. See this chapter, Commissioning, for instructions on fitting other restrictors. Ensure that the machine connection complies with statutory regulations, local water authority by-laws and relevant codes of practice. Ensure that the supply line to the machine is at no point less than 0.6 diameter, larger if the available head is very low. Ensure that the supply cannot be starved by other fittings.! A full-way isolating valve (not supplied), must be fitted to rigid pipework only, before connecting the machine to the mains or a storage tank. The isolating valve should be placed close to the machine so that it is readily accessible during maintenance or Servicing. Service connections are shown on the installation sheet. The machine is supplied with an inlet hose and suitable fittings for the customer s water inlet supply and cistern overflow. The inlet pipe is to be connected to the hose provided which is already connected to the inlet solenoid valve that feeds the internal cistern. Page 6 February / 1

13 Installing & Commissioning! Preferred connection - Mains supply The cistern is fitted to this machine and provided with an Air gap EN 13076, Family A, type A to prevent the back syphonage of contaminated water.! Under no circumstances may the cistern be by-passed. Waste Outlet Connection The machine is fitted with a 1 1 / 2 (38 mm) P trap inside the cabinet terminating in a compression fitting suitable for a 1 1 / 2 (38 mm) pipe stub. The outlet is for rear connection. Fitting a slow bend will allow for alternative connections through the floor to the right or to the left.! Never connect the waste outlet to a septic tank. Ensure a clean run inside the pipe-work with no burrs or reducing shoulders. Support plastic pipe-work adequately on runs to prevent sagging. Remember that ceiling voids can get very warm. Avoid running the drain line near or across hot water pipes. If a straight pipe run is not possible, keep any change of direction to a minimum, with an overall length of run of 6 7. If you need to exceed this length please contact Haigh Engineering for further assistance. Overflow The overflow indicator pipe from the integral cistern needs to be run to a suitable position. A 1 nominal push in socket is fitted to the cistern for connection to the customer s overflow pipework. Ensure that discharge from the overflow is visible.! Do not connect the overflow back into the soil drain. Electrical Supply Vernacare SOLO is supplied for use on single phase power supply only. Refer to the rating details on the label on the top left of the frame of the machine, which can be viewed with the front cover removed. Ensure that the appropriate I.E.C. approved cables have been used. All electrical installations must comply with current I.E.E. regulations. The appliance is connected to a protective earth connection via the earth terminal which is identified by the earthing label. A customer supplied Isolator must be mounted adjacent to the appliance. A 6 7 cable flying lead is supplied ready fitted to the machine for connection to the customer s isolator. Mains supplies always to be protected by I.E.C. approved circuit breakers or fuses. Existing Installation Where an isolator and a lead is already present from a previous installation, fit a junction box (not supplied) to the wall and connect the lead and the 6 7 flying lead of the machine into the junction box / 1 February 2009 Page 7

14 Installing & Commissioning The following recommendations can be used as a guide: Single Phase Machine Rating 9.0 amps. (120v 1ph 60 Hz) 3 wire Recommended MCB 10 Amp to BS Type 4 Recommended Fuse Connection cable 13 Amp to BS. 88 HRC 16 AWG Unpacking the Machine 1. Open the carton and remove the top packing materials. 2. Reserve the bag containing the floor mounting plate and associated fixers and the pack containing the floor plan template. 3. Remove the machine from the packaging and stand in an upright position. Before installing you will need to remove the floor positioning template from the pack and the floor locating bracket from its bag. Page 8 February / 1

15 Installing & Commissioning Installation. Having established the correct position for the machine, taking into consideration water and electrical supplies, drain connection and the overflow indicator: 1. Position the template. Place the template in the desired position on the floor. Caution: Before drilling, check & position the template to ensure that the holes do not affect under-floor heating or other services. 2. Drill holes. Place the floor locating bracket in the position indicated on the template and drill the fixing holes. Ensure the template does not move while drilling. 3. Remove template. Remove the template after drilling and replace the floor locating bracket. 4. Secure the bracket. Using appropriate floor fixing fasteners (not supplied) bolt the floor locating bracket to the floor. 5. Position. Position the machine close to the floor locating bracket, and being careful not to damage the floor gasket, move the machine over the bracket and locate the bracket into the recess in the floor of the SOLO. 6. Remove Front Panel Slacken the two front panel screws, and remove the front panel. 7. Undo Control Box bracket screws Undo the screws which fix the electrical control box bracket to the machine floor. 8. Move Control Box Move the control box to one side to allow access to the floor fixing bolt. 9. Bolt machine to Bracket Secure the machine using the mounting base bolt, spring washer and sleeve to fix the machine in position. Secure the control box in its original position in the machine with the two screws. Connect all services: 1. Make the waste connection from the internal P trap (to mains sewage only). Ensure the connecting pipe is cut square and de-burred before fitting, to prevent waste snagging within the pipe-work and restricting the flow. 2. Connect the mains cold water inlet supply. Open the inlet isolating valve. 3. Connect the flying lead supplied ready fitted to the machine, to the installation isolator. Note advice on electrical supply on page Turn on the electrical supply. The inlet solenoid valve opens to admit water to the cistern. Using the information in this manual, pages 11 & 48-49, will ensure the correct flow restrictor is fitted (if required) for your supply, which must be fitted immediately. The machine has a 3mm restrictor fitted as standard when leaving the factory. 5. Continue with commissioning the machine. The rotational direction of the machine is correct on leaving the factory. 10. Fit the front panel Refit the front panel. Secure with the two front panel screws / 1 February 2009 Page 9

16 Installing & Commissioning Storage (Customer) If the machine is not to be installed immediately, it should be stored in the carton in which it has been transported, in a clean, dry place which is free from vibration. Undo the carton, lift the lid to periodically rotate the impeller by hand to prevent the mechanical seal seizing. Re-seal the carton after doing this. Industrial gloves must be worn when working on or rotating the impeller by hand. Removing From Storage (Customer) If the machine has been stored, ensure that the impeller boss is free to rotate. The mechanical seal may have seized if it has not been revolved frequently or through water drying out. Result: Motor will not start, or does start and damages seal faces. To free the mechanical seal, remove the impeller and part the seal faces, lubricate with clean water only. A new mechanical seal will be required if faces are damaged as the seal will leak. Industrial gloves must be worn when working on or rotating the impeller by hand. Never put tools etc. on the cabinet top, these could damage the surface. Never allow the pump to run in a dry condition. Page 10 February / 1

17 Installing & Commissioning Commissioning Customer Commissioning To ensure correct installation you should perform the following checks. Ensure the machine has been securely bolted down after installation in the mounting position. Clean off any accumulated dust and dirt and check inside the machine for foreign matter before testing. Before starting for the first time, ensure all foreign matter such as tools, fasteners, rubble, and other rubbish are removed from within the machine and/or operation area. Most problems which arise during the first hours of operation are caused by foreign matter.! For advice on electrical connections refer to page 7 of this manual. Refer to the flow restrictor information below for the operating parameters for cold water supply of the Vernacare SOLO. Water Inlet Flow Restrictors Fit the correct supplied restrictor as required (see below). Refer to the main supply plumbing diagram for fitting one of these. The machine is supplied with a set of three restrictors, with the 3 mm restrictor fitted as standard. If your water supply pressure is high then you will hear the water "hiss" as it flows into the machine, and/or the solenoid will operate more than twice in a cycle (you will be able to hear the water supply come on and off to indicate that the solenoid has operated). Fit a smaller restrictor to correct this. If your water pressure is low, then the orange low water light will be illuminated at the end of the cycle for longer than five seconds. In this case you should fit a larger diameter restrictor or remove the restrictor completely. Keep the unused restrictors in the machine cabinet, in case you decide to alter this setting, or move the machine to a different location which may have different water pressure / 1 February 2009 Page 11

18 Installing & Commissioning Routine Maintenance Daily Monthly Run the machine under no load conditions to clear any residue. Remove any debris which has accumulated on the Lid spray. Check that the lid micro-switch and solenoid latch operate correctly. Check for leakage from the pulveriser and water pump seals. Quarterly Water Supply and Drainage Check for leakage from the pulveriser or water pump seals. Check for leaks in the inlet water supply pipe-work. Check that the machine is draining correctly. Check that the drain block pressure switch tube is clear of debris and water. Check and clean the inlet solenoid filter. Mechanical Check wear on the hopper cutter ring/impeller. Check that the impeller is rotating freely and without vibration. Inspect and tighten nuts and bolts as necessary. Check the condition of the lid/hopper seal, and that the lid opening gas spring is operating correctly. Check the lid latch arrangement. Turn the isolator off during an empty cycle to simulate a power loss and ensure that the solenoid has secured the latch in the locked position. Electrical Check that the lid positive break interlock switch operates correctly. Check that the electrical connections in the control gear and motor terminal box are secure. Check that the low water sensor and drain/hopper block pressure switch are operating correctly. Functionally test the machine. Page 12 February / 1

19 Installing & Commissioning Cleaning Recommendations! Electrically isolate the machine before cleaning. Never use a wet solution to clean the indicator panel. Daily All exterior panels should be wiped over with a general purpose cleaning solution for work-tops etc. (soapy water) and then be dried. For best results open the lid. This allows full access to the lid seating and the lid seal. All internal surfaces are automatically cleaned by the machine. If there is any residue, this must be investigated. Weekly (As Required) The lid seating area should be scrubbed with a brush, wiped and the neoprene seal washed with the same cleaning solution. Lubrication The machine is designed for minimum maintenance. The clip bushes used in this machine must not be lubricated. Apply anti-seize compound if indicated. The motor is fitted with sealed for life bearings. The mechanical seal face must be perfectly clean. Use only clean water to lubricate the seal face. Ordering Spares Spare parts can be ordered from Vernacare or their agents. The part numbers for the various assemblies are identified in Chapter 6, Servicing in this Manual. When ordering spares please quote the items alongside: The Manual number found on the cover of this manual. The drawing or page number on which the component appears. The item number of the component. A full description of each component via the parts list. The quantity of each component required. The part number of the component, if provided. Failure to state the above details may cause delay in the delivery and accuracy of the parts required. For all enquiries, refer to the contact details on the inside cover of this manual / 1 February 2009 Page 13

20 Notes

21 Chapter 3 Technical Information Chapter Contents Information about the Vernacare SOLO About the machine The Pulveriser Isolator Water pump Maximum loading: Pulp products only Pipe-work connections Mains water inlet flow rate Cistern Cistern overflow indicator Mounting / 1 February 2009 Page 15

22 Technical Information Information About The Vernacare SOLO About The Machine Vernacare SOLO consists of an electric motor which drives a pulveriser, with a separate water pump that flushes the hopper and outlet pipe-work. Water is supplied via mains supply or a storage tank through an inlet solenoid valve. The solenoid valve is operated by the machine s printed circuit board (P.C.B.). This receives a signal from a level switch mounted in the cistern. The water is drawn from the cistern by a separate pump and is discharged via the plumbing system into the machine. The internal surfaces of the lid and hopper are automatically washed down by the spray from a vent centrally mounted on the underside of the lid. A measured amount of deodorising fluid is injected into the water from the cistern at the end of the cycle. The microprocessor is actuated when power is switched on at the wall isolator and it performs a safety monitoring assessment of the machine before illuminating the green ready to run light. At this point the machine is ready to start a cycle of operation. The electrical safety system is continuously monitored by the internal microprocessor. If a problem occurs, the inbuilt safety devices end the cycle of operation and the appropriate warning or fault light will illuminate. See Chapter 4 for Operating details or Chapter 5, Troubleshooting. This machine is awaiting Water Regulations Advisory Scheme approval to demonstrate protection from contamination to the water supply, which is provided by an Air gap EN 13076, Family A, type A. Maceration cycle: 45 seconds. The Pulveriser The pulveriser consists of an impeller rotating at high speed within a toothed cutter ring which forms the lower part of the stainless steel hopper assembly. The impeller is fitted with two sweep blades which pulp the bedpans and urine bottles before the pulp passes on through the disposer.! Dispose of pulp products only e.g. (bedpans and urine bottles). The machine is not designed to dispose of dressings, swabs, gloves etc. If an unsuitable object has been inadvertently placed in the machine which causes the impeller to become jammed, the motor overload trip will operate to stop the machine and the red fault light will illuminate.! Always isolate the machine from mains electrical supply before servicing. Remove the object and ensure the impeller is free to rotate. The overload trip device within the control box will automatically reset. Close and latch the lid. Press the Start button to continue. Page 16 February / 1

23 Technical Information Isolator Feature Water Pump Maximum Loading Pulp Products Only Mains Inlet Waste/Drain Outlet Water Usage per Cycle Cistern Cistern Overflow Indicator Floor Mounting Detail 20 amp Isolator to I.E.C. Standards Self primed from the cistern. Electric centrifugal pump Maximum One. Disposable Bedpan or Urine Bottle. ¾ H.T. Female Connection, On Hose Attached To The Machine. To Be Connected To A ¾ H.T. Male Stub And Isolating Valve. Rigid Pipe-work Only. (Supplied By Customer) 1 1 / 2 (38 mm) H.T.) Multifit P Trap 2.64 US Gallons US Gallons. Inlet Protected By an Air gap EN 13076, Family A, type A Never Connect The Overflow Indicator Stub To The Drain. Ensure Any Discharge Is Visible 3 / 8 Base Clearance Holes for 5 / 16 Securing Bolts All installations must comply with statutory regulations, local water by-laws and relevant codes of practice of the country of installation. Responsibility for this must rest with the installer. The company make every effort to comply with national requirements/standards / 1 February 2009 Page 17

24 Notes

25 Chapter 4 Operating the SOLO Chapter Contents Operating your machine The indicator panel Operating your machine How to operate your machine Operation Advice Once Daily Operator / 1 February 2009 Page 19

26 Operating the SOLO Operating Your Machine The Indicator Panel Identification of the symbols and indicator lights. Indicator Light (Green) - Start Light The machine is ready to run when illuminated. The light is off while the machine is running and when a fault indicator is showing. The indicator light flashes if a problem is detected by the monitor system. Indicator light (Green) - Operation Cycle This is illuminated while the machine is in normal running mode. Indicator light (Amber) - Low Water Flashes whilst the cistern is filling. Illuminates permanently to indicate a fault if the machine s cistern fails to replenish in a sufficient time. Indicator light (Red) - Drain Block Illuminated if there is an outlet blockage. On release, if water and pulp are still in the hopper covering the impeller, call the service engineer. Indicator light (Red) - Fault Illuminated or flashes when the machine has developed a fault, call the service engineer. See Chapter 5 for troubleshooting for the above indicators Page 20 February / 1

27 Operating the SOLO Operating Your Machine How To Operate Your Machine Refer to the indicator panel shown on the facing page. With the machine plumbed in and switched on at the isolator the Start light should illuminate green. 1. Open the lid 2. Load the machine with a single disposable bedpan or urine bottle 3. Close the lid 4. Press the Start button On completion of the disposal cycle the Start light will illuminate green again. Notes: The lid is self-opening once the handle has been un-latched. Close the lid before running. You cannot run the machine with the lid open, and you cannot open the lid whilst the machine is running. During the operation cycle the Start light is not illuminated. The Operation Cycle light is illuminated to show that the machine is operation. There is a pause in the operation cycle between maceration and flushing. There is a small delay between the end of the cycle and the lid latch withdrawing. Do not attempt to force the lid open. For another complete cycle, load and press the Start button when it is illuminated. The Maximum load for this machine: ONE disposable bedpan, or ONE urine bottle.! The loading must not be exceeded / 1 February 2009 Page 21

28 Operating the SOLO Operating Advice Operate the Vernacare SOLO immediately after every loading. Wash your hands after every loading.! Never use a chemical reaction substance to clear a drain block in the disposer, as damage to the seals will result. If electrical power to the machine fails during an operation cycle, the rod of the solenoid latch interlock remains engaged in the lid handle, securing the lid in the locked position. The latch cannot be operated or the lid opened until power is restored to the machine. Do not attempt to force the lid open. Once Daily Run the machine under no load conditions to clear any residue. Operator Call the service engineer if the red fault light is illuminated. Do not attempt any servicing yourself. Page 22 February / 1

29 Chapter 5 Troubleshooting Chapter Contents Troubleshooting Functional Problems Operational Indicators: Start light is green on power on. Goes out while operating Possible problems Start indicator flashes green Start indicator flashing, Fault indicator lit Start and Cycle indicator flashing, Fault indicator lit Start Light, Cycle, Water Level flashing, Fault indicator lit Cycle indicator lit, Fault indicator flashing Cycle and Drain Block indicators lit Water Level and Fault indicators lit Water Level indicator flashing, Fault indicator lit Machine not running or will not start - No lights Machine not running - Fault indicator lit / 1 February 2009 Page 23

30 Troubleshooting Troubleshooting! Electrically Isolate the machine before any maintenance! Maintenance should only be performed by qualified personnel Always check the indicator lights on the machine before calling maintenance staff, as simple remedies may work. Functional Problems Problem Machine is not clean internally after use Underside of lid has a deposit after use Air bubbles in water supply pipe-work Lid seal is leaking Unable to open lid Unable to close lid Internal water leakage Possible Causes / Resolution Lack of water or a failure to circulate within the machine. Check that the main water solenoid valve is operating. Make sure that the main isolating valve is open. Is the water isolator service valve is in the Open position? Check that the pump is working. Check for foreign matter in the gap of the vent in the centre of the lid. If this is blocked, remove the vent, clean it and replace it. The jet gap must be the same around its circumference. If the problem is with the pump you will require an exchange unit for this part. Check that the correct mains pressure restrictor for the site has been selected. Check that the lid seal sits correctly on the lid gasket. Adjust and rectify, referring to the latch assembly description in Chapter 6 before making any adjustments to the latch mechanism. Remove any scum that has accumulated around the lid/hopper seal area. Power failure. A solenoid on the latch mechanism locks the lid. The lid cannot be opened until power is restored. The gas spring has not operated. Fit a new gas spring using the instructions in Chapter 6. The handle solenoid latch has not withdrawn. Check the operation of the latch and service as necessary. Handle roller does not engage the striker. Adjust the mechanism using the instructions in Chapter 6. The Pulverisor or Pump mechanical seal is leaking Fit a new mechanical seal in the main assembly, or if the pump is leaking, exchange this for a new part. The plumbing is leaking. Investigate where the leakage originates and rectify the problem. Damaged Hopper Seal. Replace the lid seal, ensuring that the new seal fits correctly. Page 24 February / 1

31 Troubleshooting Operational Indicators: Start Light (Green) Operation Cycle (Green) Low Water (Amber) Drain Block (Red) Fault (Red) Indicates Normal Mode ON ON FLASHING Power on, machine ready to run. Normal running mode. Cistern replenishing (water solenoid energised). FLASHING Lid latch not locked. FLASHING ON Lid latch not locked. (after 3 attempts). FLASHING FLASHING ON Safety monitor circuit malfunction. ON FLASHING Overload trip. ON ON Drain block. ON ON Cistern fails to replenish after 150 seconds. Fault Mode FLASHING ON Water level fails to drop after 20 secs. No Power, or Indicator failure / 1 February 2009 Page 25

32 Troubleshooting Start light is green on power on. Goes out while operating. This is an indication that the machine is operating correctly Possible problems Start indicator flashes green Start light flashing - Possible operator error, lid latch not fastened. Start indicator flashing, Fault indicator lit After three attempts to start the machine with the Start indicator flashing the Fault light will be illuminated as well. Make sure that the lid handle latch is correctly fastened, and adjust if required. Start and Cycle indicator flashing, Fault indicator lit A: Start-up Problem: Malfunction found during the initial start-up procedure Check the electrical operation of the rear micro-switch and lid-latch micro-switch to identify the problem. B: Fault at Start of the Cycle: If the Lid latch is not operating, check the position of the solenoid device/micro-switch/latch mounting plate. Replace or adjust as required. Check the wiring connections. C: The machine stops during cycle: This may be caused by a loose micro switch or poor connections. If the lid arm rear micro-switch opens during the cycle, check the microswitch and connections. Adjust as required. Page 26 February / 1

33 Troubleshooting Cycle indicator lit, Fault indicator flashing Motor has tripped out on overload, probably jammed. Switch off at isolator and remove the obstruction from the hopper. Cycle and Drain Block indicators lit A: Draining Slowly: If this is a new installation, check the outlet plumbing pipe size or the position of the waste pipe-work and any bends. B: Pressure in Hopper: Pulveriser exit blocked: This is indicated by bubbles around the Lid Seal.This may be due to a failure of the solenoid pressure relief valve, requiring servicing, or to a blockage between the exit from the hopper and the drain which needs to be cleared. C: Temporary Blockage in the Drain Pipe: Pulveriser exit blocked: This sometimes occurs when a concentrated amount of pulp passes down the drain. The machine will re-set and re-start after ten seconds. Drain blocked - This is when there is a blockage in the hopper drain pipe. The machine will stop. You should investigate the cause and clear the blockage. If the blockage is not between the hopper and the waste pipe, observe the drain outlet at the nearest convenient point to make sure that there is no delay in the emptying of the waste. Check the trap and rod the drain if necessary. If the problem persists, there may be a partial blockage beyond the waste outlet that requires investigation.! Never use a reactive chemical drain block clearer within the machine as it will damage the seals / 1 February 2009 Page 27

34 Troubleshooting Water Level and Fault indicators lit A: Lack of water in cistern, mains inlet: Check that the mains inlet valve is open. Check that the machine has not been closed down before opening the inlet valve. B: Lack of water in cistern, poor water supply: Increase the water supply. C: Lack of water in cistern, the solenoid filter is blocked: Check and clean the inlet solenoid filter. Replace the filter before completing the service. Water Level indicator flashing, Fault indicator lit A: Lack of water - electro/mechanical problem: If the solenoid valve opens but there is no water, open the mains water inlet valve. If the solenoid valve is not opening it may need to be replaced. If the Water Level Indicator is lit, but the level fails to drop after 20 seconds, this indicates a possible capacitor failure. If the motor is not rotating, check the capacitor, and replace it if faulty. B: Possible pump failure: Check the pump and replace (exchange) if faulty. C: Level switch indicator faulty: If the cistern level switch is set in either the open or closed positions, service or replace this part. Page 28 February / 1

35 Troubleshooting Machine not running or will not start - No lights A: Lack of Power: The machine is switched off at the isolator. Check the other indicator lights. The Start light may not be illuminated or the machine may be switched off at the isolator. Make sure that the machine has not been switched off at the isolator because of an earlier fault, before switching on. B: Also possible: The Drain is blocked - Check the indicator lights and refer to the drain block section on page 27. There is insufficient water in the cistern. Refer to the Water Level control section. The Main fuses have blown - Check the electrical and mechanical systems for the cause before replacing the fuses. There is a power failure - The solenoid on the latch mechanism locks the lid until power is restored. Circuit Breaker tripped - Check the electrical and mechanical systems for the cause before re-setting the circuit breaker. Machine not running - Fault indicator lit A: Fuses mounted on the P.C.B. have ruptured: Check the electrical and mechanical systems for the cause before replacing the fuses. B: P.C.B. Malfunction: The P.C.B. board, microprocessor chip or drain-block pressure switch is faulty. Replace the faulty part. C: Positive Break Switch not made: This is a switch failure. The switch needs adjustment to the cam operation of the lid hinge. Adjust as required or fit a new switch. Also possible: Lid arm monitoring switches not operating - Check the switches. Faulty Fuse - Check the electrical and mechanical systems for the cause before replacing the fuses / 1 February 2009 Page 29

36 Notes

37 Chapter 6 Servicing Chapter Contents Introduction General Assembly Upper Lid Sub-Assembly Handle Latch Mechanism Handle Latch Mechanism Operation: Handle Removal Lid Removal Lid operation Cleaning the Lid Spray Vent Replacing the Gas Spring Replacing the Lid Seal Mechanical Assembly Servicing the Water Pump Replacing The Pump Motor and Seal Housing Sub-Assembly Replacing The Impeller Blades Replacing the Mechanical Seal HPR Solenoid Assembly Cleaning the Inlet Solenoid Filter Plumbing Assembly Plumbing Internal Water Supply Plumbing/Water Controls The Drain Block/Water Level Controls Servicing The Drain Block Warning Device Replacing the Air Vent Valve/In Line Valve Deodorising Feed Sub-assembly Servicing the Deodoriser Feed Sub-assembly Cistern Sub-assembly Connection diagram Electronics Important Electrical Information Control Enclosure Assembly Servicing The Printed Circuit Board To Remove The P.C.B Secondary Fuse/P.C.B Failure Recommended spare parts list / 1 February 2009 Page 31

38 Notes

39 Servicing Servicing Introduction This section details the various tasks that may be required to service the machine. These are ordered according to the likely frequency of the task needing to be done. Within each task the instructions are numbered. Where it is necessary to order replacement or exchange parts the part number lists will allow you to identify and order the replacement parts that you require. Each section is prefaced by labelled graphics of the assemblies concerned, followed by a list of parts for the assembly. This should enable you to identify the parts to be serviced and the fastenings to be removed in order to allow access to the parts. In some cases the sub-assemblies are only available as a unit. Where appropriate, the section will also give details of any specialist tools required, tips and safety notes. For convenience, the service tasks have been grouped into mechanical, plumbing and electrical areas. A general assembly diagram is the first full page in this section / 1 February 2009 Page 33

40 Servicing General Assembly General Assembly Page 34 February / 1

41 Servicing General Assembly Parts List Item Part No Description Qty Frame Assembly Solenoid Mounting Arrangement Lid Assembly Cistern Assembly Mechanical Assembly Pump Assembly Floor Bracket Assembly Front Cover Moulding Rubber Floor Moulding Screw M5 X 16 Socket Button Head Rivet - Plastic Expansion Washer 5mm Plain Washer 5mm Spring 4 14 SK Vernacare SOLO Control Box / 1 February 2009 Page 35

42 Servicing Upper Lid Sub-Assembly Upper Lid Sub-assembly Page 36 February / 1

43 Servicing Upper Lid Sub-Assembly Parts List Item Part No Description Qty Upper Lid Moulding Lower Lid Moulding Handle Sub Assembly Hinge Bracket Assembly (LH) Hinge Bracket Assembly (RH) Spring Retention/Monitor Switch Assembly Lid Switch Mounting Assembly Switch Actuator Assy Label Vernacare Solo Latch Spring Screw M5 X 16 Sckt Csk Hd Screw M5 X 35 Pozi Pan M5 X 16 Plastite Self Tapper Torque Drive M6 X 16 Plastite Self Tapper Pozi Pan User Interface PCB Lid Seal Moulding (Concept 1) Vent Gas Spring Pin Retaining Pin (On Drives RPS Handle Spacer Lid Spacer Gas Spring Microswitch Burgess Microswitch Burgess / 1 February 2009 Page 37

44 Servicing Handle Latch Mechanism Page 38 February / 1

45 Servicing Handle Latch Mechanism Parts List Item Part No Description Qty Handle Latch Mechanism 1 This is supplied for replacement parts as a sub-assembly. Handle Latch Mechanism Operation: Latch the lid handle in the closed position. Press the green start button. The handle is then mechanically secured by the solenoid latch interlock. A rod attached to the interlock enters the bottom of the lid handle to mechanically lock the handle in position, so that the lid cannot be opened whilst the machine is functioning. The lid is electrically monitored by a micro-switch on the latch interlock whose contacts are made when the latch is locked. The lid is also electrically monitored by the micro switch situated on the opposite end of the lid arm, which completes the electrical circuit only when the lid handle latch is in the locked position. The control unit checks the circuit to see that the system is complete and available to run. The green Start light illuminates to show that the operation cycle can start. You adjust position of the micro-switches by slackening the screws that hold them in position, making the adjustment and then re-tightening the screws. Lid Lock Malfunction: If a malfunction occurs in the lid lock mechanism, allowing the lid to partially open during an operation cycle, the fail-safe switch on the lid hinge operates to stop the rotation of the mechanical assembly. The Fault light will illuminate. Refer to the troubleshooting chart in Chapter 5 for possible scenarios and their resolutions. Power Failure: If electrical power to the machine fails during an operation cycle, the rod of the solenoid latch interlock remains engaged in the lid handle, securing the lid in the locked position. The latch cannot be operated or the lid opened until power is restored to the machine. Do not attempt to force the lid open. Lid Arm Micro Switch (Front) When the lid opens, the micro monitoring switch situated at the front of the lid arm is open and the contacts are broken. Adjust the switch by slackening the holding bolt and sliding the switch as required before re-tightening the bolt / 1 February 2009 Page 39

46 Servicing Handle Removal 1. Un-latch the handle and raise the lid. 2. Remove the the Pozi drive bolts to the front and the T20 torque bolts to the rear of the inside of the lid, and lower the underside of the lid. 3. Use an open ended spanner to slacken the pipe connection and remove the underside lid. 4. Remove the fasteners securing the handle sub-assembly in the lid arm and take out the handle sub-assembly. 5. Re-assemble in reverse order. Lid Removal 1. Disconnect the water pipe to the lid arm from the connection on the pump and drain the water from the pipe-work and cistern. Do not allow the water to flood the pump motor. 2. Slacken the four fasteners of the hinge base plate and move the lid subassembly forward. Remove the electrical connections from the rear microswitch, fail-safe switch, led display PCB and earth terminal before lifting out the complete sub-assembly. 3. Service as required 4. Re-assemble in reverse order. Lid operation The lid is self-opening, being opened by a gas spring when the lid handle latch is operated. The lid will only open when the foot control is operated. Lid Centralising To centralise the lid, slacken the four hinge base plate mounting screws to allow adjustment, move the lid to the correct position and re-tighten the screws. Inverter Positive Break Switch The switch contacts are made when the lid is in locked position but are opened by a cam if the lid starts to open, cutting off the power to the Inverter. Adjust the switch by raising or lowering the switch assembly on its bracket and position as required. Ensure the nuts are secured on completion. Lid Arm Micro Switch (Rear) When the lid opens, the micro monitoring switch situated at the rear of the lid arm is open and the contacts are broken. Adjust the switch by slackening the holding screws, positioning as required before re-tightening the screws. Cleaning the Lid Spray Vent If the underside of the lid is left with a deposit after use, this will show as a segmented arc of cover which extends down the hopper wall. Check for foreign matter in the gap of the jet vent in the centre of the lid. If the vent is blocked, remove, clean and then re-attach the part. Page 40 February / 1

47 Servicing Replacing the Gas Springs 1. Remove the back panel to gain access to the Gas Springs. 2. Remove the defective Gas Spring Pin and the Retaining Pins 3. Replace the defective Gas Spring 4. Re-assemble in reverse order. Replacing the Lid Seal To replace the lid seal, 1. Undo the Pozi drive bolts to the front and the T20 torque bolts to the rear of the inside of the lid. The lid will then come apart. 2. Remove the old seal and then feed the new seal through the gap, using the locating lugs to achieve the correct position. 3. Re-assemble in reverse order. Photo 1: Underside of lid showing spray vent and lid seal and Pozi drive bolts / 1 February 2009 Page 41

48 Servicing Mechanical Assembly Mechanical Assembly Page 42 February / 1

49 Servicing Mechanical Assembly Item Part No Description Qty Hopper/ Head Sub Assembly Outlet Plumbing Sub Assembly Motor And Seal Housing Sub Assembly Screw M6 X 35 Sckt Button Hd Washer 6mm Plain Nylite Washer M6 3 Servicing the Water Pump Servicing the Water Pump The pump is self primed from the cistern. This is a centrifugal pump with components in plastic with a magnetic drive. Incorrect use of or tampering with the pump will void the warranty. The pump is fitted with an automatically resetting thermal overload.! Warning: The Pump must be earthed.! Avoid over tightening the fittings as damage to threads and ports may occur. 1. Turn off the water at the mains inlet. 2. Remove the front cover by undoing the two bottom screws and dropping the panel. 3. Fill the cistern first on new installations. Do not run the pump when dry. 4. Ensure there are no leaks or blockages in the pipe-work. Replacing The Pump 1. Slacken the two fasteners at the bottom of the front panel. Slightly lift the panel to remove it from the fasteners and lower it from the location pegs situated at the top to remove. 2. Remove the Control gear box to allow access. 3. Isolate the water inlet to the pump at the service valve by turning the isolation screw 90. Ensure that a suitable receptacle is at hand to catch the water retained in the pipe-work. Do not let water run over the pump motor. 4. Take out the pump mounting fastener and move the pump towards you to disengage from the slots in the side panel. 5. Disconnect the electrical connections. 6. Remove the pump inlet and outlet pipes by pushing the locking bushes back into their fittings. 7. Replace the pump and in re-fit in reverse order.! Ensure the service valve screw is turned to the original vertical position when servicing is completed / 1 February 2009 Page 43

50 Servicing Motor and Seal Housing Sub-Assembly Motor and Seal Housing Sub-Assembly Page 44 February / 1

51 Servicing Motor and Seal Housing Sub-Assembly Item Part No Description Qty Motor 0.37kw 230v 50hz 3 Phase O Ring BS Impeller Hub D Water Thrower -D80 Motor Pacseal 118 X30mm Shaft Screw M8 X 25 Hex Hd Hub Washer Lock Washer Washer 8mm Spring Washer 6mm Spring Screw M6 X 20 Lg Hex Hd Screw M6 X 12 Button Hd Ring Ref Hub/Impeller Cap Washer 8mm Plain Seal Housing D80 DMC Adaptor Ring JG Cartridge 8mm Rivetnut M6 Open Short Cartridge 8mm Impeller Sub Assembly (Solo) / 1 February 2009 Page 45

52 Servicing Replacing The Impeller Blades To replace the impeller blades you remove the impeller complete and do the work outside of the machine. This can be done without removing the mechanical assembly. 1. Unscrew the hub cap fasteners and remove hub cap (14) and impeller assembly (21). 2. Remove fasteners, blade block and lug from impeller spinning. 3. Replace in reverse order. Industrial gloves should be worn when replacing the impeller blades. Replacing the Mechanical Seal 1. Remove the impeller hub retaining fasteners, and using an extractor (if required) withdraw the impeller hub, and mechanical seal. The rotating part of the seal will be found housed in the underside. The static part of the seal can now be examined and if necessary removed from its seating in the seal housing. 2. Examine all the components carefully for signs of damage or wear and replace them as necessary. 3. If any one component of the seal assembly has to be replaced a complete new mechanical seal must be fitted. 4. Ensure that all components and housings are absolutely clean and damage free before assembly. Prior to re-assembly Great care must be exercised not to scratch the seal faces or seal moulding as even a hair line scratch may negate their use. Use clean water only, as a lubricant for the seal faces. Reassembling the seal 1. Replace the static section of the mechanical seal into the seal housing (16). 2. Place the rotary section of the mechanical seal on to the boss of the impeller hub (21). Ensure the moulding locates correctly into position. Light lubrication on the inside of the moulding will assist with fitting. 3. Place the impeller hub (14) onto the motor shaft and secure with fasteners. 4. Check the condition of O rings (2 & 13) before refitting the mechanical assembly. Replace and lightly lubricate if required. Page 46 February / 1

53 Servicing Connect Services Connect the waste outlet pipe to the head with the fasteners. Connect the water pipes to the mechanical seal and waste outlet. Connect the motor terminal box wiring if removed earlier / 1 February 2009 Page 47

54 Servicing HPR Solenoid Assembly HPR Solenoid Assembly Page 48 February / 1

55 Servicing HPR Solenoid Assembly Parts List Item Part No Description Qty HPR Solenoid Assembly Water Solenoid Assembly Rear Cover Pressure Switch Mounting Bracket Pressure Switch Water Hose Guide M3 X 6 Self Tapper Pozi Pan Twin Solenoid Mounting Bracket Screw M3 X 10 long Self Tap Pozi Pan Head 4 Item 1 Parts List Item Part No Description Qty A Solenoid Valve Invensys V18 * 24V * 3 / 8 *Ind 1 B Female Adaptor 3 / 8 BSP X 8 Cartridge 1 C Female Adaptor 3 / 8 " X 4 1 D Washer 10 X15 X E Short Cartridge 8mm JG PM2808E 1 Item 2 Parts List Item Part No Description Qty F / 4 " Inlet Hose Sub Assembly 1 G Elbow 1 H Diffuser Sub Assembly 1 I Klingersil G4324 Fibre Washer 1 J Restrictor Housing 1 K Solenoid Valve 1 Cleaning the Inlet Solenoid Filter 1. Turn off the water at the mains inlet. 2. Remove the back access panel. 3. Undo the inlet pipe from the pressure solenoid (top). 4. Loosen the elbow joint from the inlet solenoid. 5. Remove the filter with long-nose pliers and clean, removing any blockage. 6. Refit the filter. 7. Reassemble the solenoid in reverse order / 1 February 2009 Page 49

56 Servicing Plumbing Assembly Plumbing Assembly - A Page 50 February / 1

57 Servicing SOLO Plumbing Assembly Parts List Plumbing ItemPart Number Description Qty Tube 15 x 12 Flexible Nylon Tube 8 x 5.5 Flexible Nylon Tube 10 x 8 Flexible Nylon Degree Elbow Stem Elbow Reducing Tee 15 x 15 x Reducer 10 x Service Valve Equal Straight Connector Two-way Divider Air Vent Valve Sub-Assembly In-line Valve Straight Connector 10 x Lid Hose Sub Assembly Two-way Divider Reservoir 1 Internal Water Supply A pump draws water from the cistern under pressure to: The drain flush. The pulveriser head seal flush. A spray vent in the centre of the lid. Inlet water supply: minimum 1.45 US G.P.M. Approximately 2.64 US gallons of cold water is used per complete cycle of 45 seconds. Before starting the machine for the first time ensure that the water supply isolating valve is open and the cistern is full.! Under no circumstances may the pump be allowed to run in a dry condition, not even for test purposes. Ensure that no tubes at the rear of the hopper are pinched and The lid internal hose assembly is free to move on final assembly when the lid is operated. All tube ends must be square. Use a tube cutter. To test the air pressure drain switch remove item 16 tube from item 17 at the drain switch test point. Induce air pressure in item 17. When fitting item 12 ensure the direction arrow is pointing upwards. Low Water Level And Drain Block Warning Devices Warning devices are fitted to indicate: When the water level in the cistern is too low. When there is a blockage in the outlet drain. The appropriate indicator light on the cabinet will illuminate/flash when either of these devices operate. See Chapters 4 and 5 of this manual / 1 February 2009 Page 51

58 Servicing Plumbing/Water Controls The Drain Block/Water Level Controls Hints: The drain block and water level arrangements are designed to monitor the pressure in the drain and the water level in the cistern. The Drain Block Warning Device Following a partial drain block the machine indicates the blockage (red drain block light on), but then returns to a start condition. In the event of a real drain block, evidence will be left in the hopper, i.e. the water level is above the impeller and includes pulp residue. Under this circumstance a drain block is still present and needs to be relieved. Any pressure build up in the system is automatically purged during the maceration cycle. Clear the blockage and close the lid. Restart the machine. If the drain blockage persists, you should not continue restarting the machine, until the fault has been rectified. Watch the clear drain outlet pipe to see any change in flow conditions to the drain. If the blockage is in the drain away from the machine, rod or snake the drain. Low Water Level And Drain Block Warning Devices Warning devices are fitted to indicate: When the water level in the cistern is too low. When there is a blockage in the outlet drain. The appropriate indicator light on the cabinet will illuminate/flash when either of these devices operate. Details of these devices are located in Sections 4 and 5 of this manual. When servicing the water inlet solenoid valve, slacken the pipe connections and the bracket mounting screw before sliding the bracket forward and lifting the solenoid valve from its fitted position. There is no need to remove the solenoid from the bracket. After removing the pipes and electrical connections, service and replace in reverse order, ensuring the location tab is positioned correctly when replacing the mounting bracket. Refer to the information on the previous page which indicates the operating parameters for cold water supply of the machine. Page 52 February / 1

59 Servicing Servicing The Drain Block Warning Device If water enters the flexible tube to the drain block pressure switch it may cause a malfunction. Take out the tube and remove any water. If a malfunction or damage occurs to the drain block pressure switch, it will be necessary to replace the printed circuit board, of which the pressure switch is an integral part. If the printed circuit board is replaced, ensure that the joints on the tube to the pressure switch are airtight at both ends. Leakage from the connections will negate or seriously reduce its usefulness. Replacing the Air Vent Valve/In Line Valve The Air Vent / In Line valves are fitted into the plumbing pipe-work and should not require removal, except for replacement. When replacing or fitting a new valve, ensure it is replaced in the same direction in which it was removed or as shown on the plumbing assembly. Water Level Control If a low water condition occurs the cistern water level sensor will not allow the motor to start for the next cycle of operation. The low water indicator light illuminates on the indicator panel, until the cistern has replenished and the water level is restored. The machine cannot be used until the low water condition is remedied. Always isolate the machine from mains electrical supply before removing the water pump / 1 February 2009 Page 53

60 Servicing Deodorising Feed Sub-assembly Deodorising Feed Sub-assembly /2 Page 54 February / 1

61 Servicing Servicing the Deodoriser Feed Sub-assembly ItemPart No Description Qty Deodoriser Pump Hanger Bracket Peristaltic Pump Screw M3.5 X 10 Pozi Pan Nut M3.5 Full Washer 3mm Plain Deodoriser Feed Circuit Reducing T JG PEM3015AW Bottle Cap - Patrico C38W Open Gromet (PV-56) Tube 3ID X 6OD Clear PVC Tube 3ID X 6OD Clear PVC Adaptor 1 The bottle cap is designed to fit a wide range of 5 litre containers of deodorising agent, as well as the standard litre container which is provided with the machine / 1 February 2009 Page 55

62 Servicing Cistern Sub-assembly Cistern Sub-assembly Page 56 February / 1

63 Servicing Cistern Sub-assembly Parts List ItemPart No Description Qty Cistern Moulding Level Sensor Standard Nut Straight Tank Connector Level Sensor Assembly Solo Gland Assembly / 1 February 2009 Page 57

64 Servicing Connection diagram Page 58 February / 1