27-05-19 UNI-SAN Domestic Instructions Page 2
Figure 3 : Connections and names of parts
1.
Cover
for pump, motor and controls. Lift to remove.
2.
Inspection lid
- Screw in type with o-ring seal; turn anti-clockwise to remove. The unit must be installed upright
with the inspection lid on top.
3.
Collection tank
- Fittings supplied are shipped inside. Cut holes neatly and carefully. Do not subject to impacts,
scratches, scouring or partial drilling that may weaken it. Take care not to damage internal parts with hole saws.
If the unit is not installed in the same room as the fixtures, it should be plumbed according to Appendix C. Access
must be provided for maintenance at all times.
4.
Pump delivery
25 mm BSPF -3 optional directions. Use Class B or D or Class 4.5 PVC pressure pipe. Install a
union/coupling close to the pump for future pump removal without disturbing the pipework. Securely strap and
isolate 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 soil or waste pipe
connection. It should never be level or have a fall.
5.
Tank vent connection
- 32 mm valve socket is supplied inside the tank. Use 32 mm pipe to run the vent to a
termination point in accordance with the Building and Plumbing Code.
Do not use an air admittance valve
,
e.g. a "Hunter Valve".
6.
Inlet connections
using PVC valve sockets with back-nuts and washers can be installed anywhere on the four
walls, or the top of the collection tank (except over the float switch) for fixtures or appliances which have an
overflow level higher than the unit. Allow room for the back-nut when cutting the hole. Check that either the inflow
liquid or the protruding pipe inside the tank will not damage fittings inside the tank or hinder the operation of the
float level switch. One 40 mm valve socket is supplied with the unit.
7.
UNI-SAN Bottom Inlet Valve
, unless the unit is installed below the floor level, should be used for a shower or
a bath connection, not shared with any other connecting fixtures or appliances. If both are connected, each must
have its own UNI-SAN Bottom Inlet Valve. It can be made with a hole-saw on any of the four walls, 80mm centre
height from the base. The inlet pipe must be braced to prevent the water pressure from dislocating the push-fit
connection.
The valve is purchased separately
.
8. All fixtures and appliances connecting into the UNI-SAN must discharge through
a trap and a waste strainer
with a maximum of 10mm diameter apertures. All pumped appliances, such as washing machines and
dishwashers, must discharge via an approved waste system which includes an air gap and a trap.
9. The 25
mm swing check valve
supplied must 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. The 25 mm
union shouldbe installed between the pump and this valve.
10.
Isolation Valve
– A 25
mm full flow ball valve
for installation after the 25 mm swing check valve is supplied
11.
Labels
warning against inappropriate discharges are supplied and should be affixed on the appropriate fixtures
and appliances connected.
2. PRODUCT OVERVIEW
9. 25 mm swing
check valve
