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G:\INSTRUCT\MULTISAN PRO\Multisan Pro Instructions 251119.docx Page 4 

 

7. 

Additional inlet connection -

 One special 40mm connection with one end as spigot & other end as socket is supplied as 

fitting. This need to be used for connecting a WHB or a Sink or any other waste water outlet to pump unit. 

Refer photos below 

for details.

 The extra connection can be purchased from Wallace Pumps if required. 

 
 
 
 
 
 
 
 
 
 
 

 

 
 
8. 

MANUAL RUN / RESET button –

 Provided on the pump cover under a clear plastic bubble. Refer figure 2 page 2. Pushing 

& holding this button will enable motor to run as long as the button is held push down. In case of alarm trip same button will 
reset the trip provided the trip reason is resolved. Exercise extreme care. Call a service agent if the motor continues to trip. 

 
9.  A Wallace 32 mm full flow non-clog 

swing check valve

 with solvent weld ends suitable for PVC pressure pipe is provided as 

one of fittings. This should be installed in the delivery pipe in a vertical position within one metre (pipe length) of the unit to 
stop backflow of liquid from the pipe back into the collection tank.

 

 
10. 

Isolating Ball Valve - 

A 32 mm full flow Isolating Ball valve with solvent ends suitable for PVC Pressure pipe is supplied for 

installation after the 32 mm non-return swing check valve. 

 
11. 

Labels - 

Labels Warning against 

inappropriate dumping of

 

non-organic products such as condoms, sanitary pads, wet 

wipes, tampons, nappies, sand, stones, tar, cement, coarse paper, non-water-soluble paper towels, cardboard, plastic 
bags, fat, oil etc. in the toilet, to be affixed to appropriate fixtures & appliances. 
Pumping of these products may cause pump unit to malfunction or jam. Any damage to pump or any other property or 
person due to such jam is not covered under warranty.  

 

 

2.  TYPICAL WASTE WATER CONNECTION DRAWING WITH SHOWER TRAY/BATH WASTE HEIGHT 

 
Refer below typical connections shown connected to pump unit. If in doubt please call Wallace Pumps for further details.  

 
Shower Tray or Bath Waste Height:

  

Refer above schematic drawing. When pump & shower and/or bath are in same room, the advised minimum height of the shower 
tray waste discharge point is 180 mm above the MULTISAN-PRO floor level. The final height is determined by starting from the 
MULTISAN-PRO Bottom inlet connection at 100 mm centreline and work back to the shower tray discharge point at the minimum 
pipe fall rate as per building & plumbing code. Add the necessary height for the trap to give you the total height from the floor to 
the shower tray. 
 

Pipe Sizes

 

PAN discharge pipe if direct pan connection   

 

 

 

Not required 

DRAIN from shower and bath to MULTISAN-PRO special fitting with NRV 

40mm Waste Pipe 

DRAIN from vanity, W/M, Kitchen sink to MULTISAN-PRO special fitting 40mm Waste Pipe 
VENT from MULTISAN-PRO to approved termination (If required) 

 

40mm Waste Pipe 

PUMP DELIVERY from MULTISAN-PRO to approved termination 

 

32mm PVC Pressure Pipe 

 

 

Summary of Contents for MULTISAN PRO

Page 1: ...ge pump For this product to meet its expected lifetime please ensure it is installed by a qualified technician and follow the maintenance schedule as detailed in section 13 2 Please keep a record of b...

Page 2: ...mp and motor unit Toilet pan connection Gas and watertight collection tank Pump cover Manual Run Reset Button Tank Vent provided with Carbon Use this port in case need to vent outside via vent pipe Do...

Page 3: ...olate the pipe from the building structure to prevent vibration or noise transmission during operation Any horizontal section of the delivery pipework should always have a continuous rise towards the...

Page 4: ...nic products such as condoms sanitary pads wet wipes tampons nappies sand stones tar cement coarse paper non water soluble paper towels cardboard plastic bags fat oil etc in the toilet to be affixed t...

Page 5: ...al limitations or because there was no unit available with adequate performance The MULTISAN PRO has been developed to overcome these problems including Below sewer line installations Where gravity fa...

Page 6: ...able check your installation requirements against the dimensions and hydraulic capabilities of the unit This graph is based on a flow of 35 litres min If flows exceed 35 L min please contact Wallace P...

Page 7: ...pigot connecting to pump other end socket to connect waste pipe from WHB Sink or any other domestic appliance and to connect 40mm DWV pipe as vent connection if required as per local rules and regulat...

Page 8: ...r bigger cable Check with Wallace Earth wire to be connected to Earth terminal E as shown Volts Free Contacts in the circuit board which activates in case of Alarm Connect Volts Free Terminal No 1 com...

Page 9: ...transmission 3 Install only the supplied full flow non clog swing check within one metre of the pump in a vertical position below and close to the supplied isolating ball valve 5 All pumped appliance...

Page 10: ...evel difference between WC pan and pump unit should NOT BE MORE THAN 900mm Suitable access must be provided for operation maintenance and repairs of the unit at all times An adequate overflow outlet m...

Page 11: ...between services should be 6 months for heavy usage unit and 1 year for light to medium usage unit c All Alarm activation occurred to be noted as to when date time and how and who rectified it and wha...

Page 12: ...quid Level switch operated by water level remains in the ON position because a pipework is blocked or b pump is blocked or c tank is blocked or d delivery hose is kinked e pressure switch is water log...

Page 13: ...t intervals without any liquid discharged into the collection tank Water is leaking back flowing into the unit from the delivery pipe triggering the motor to re start Non return valve does not close p...

Page 14: ...nk chamber under the cover Power is off Overload trip Inflows exceeding pump capacity Blockage in the pipework Shower pipe also has other pipes connected to it Pump malfunctioning Overflow pipe if app...

Page 15: ...G INSTRUCT MULTISAN PRO Multisan Pro Instructions 251119 docx Page 15 16 Spare Parts drawing list pump unit...

Page 16: ...G INSTRUCT MULTISAN PRO Multisan Pro Instructions 251119 docx Page 16 Complete lifting unit...

Page 17: ...G INSTRUCT MULTISAN PRO Multisan Pro Instructions 251119 docx Page 17 Circuit board...

Page 18: ...hose MICROBOY 117604 1 330 2 Hose clip 20 32 117033 1 340 2 O ring 34 52x3 53 117034 1 350 4 Rubber foot 117035 1 360 2 Countersunk 3 5x9 5 117605 1 370 1 Non return valve valve 117056 1 410 1 Lense h...

Page 19: ...m flange MICROBOY E2 117002 1 2 280 1 O ring 120x2 5 117007 2 290 4 Lens head screw 4 2x19 270024 2 300 1 O ring 72x3 5 117700 2 310 1 Cutting plate 117198 2 320 3 Countersunk M4x8 117199 2 330 1 Hose...

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