Specifications

FM774/0708 BOOK 2 44
WATER OUTLET
COUNTERWEIGHT DRAIN VALVE (SP2040)
Introduced 2001
Counterweight drain valve shown in the normally open position (dry sump)
Purpose: To allow the unit to hold water whilst in operation and to drain water when turned off or
during a house keeping cycle.
Description: Counterweight Drain Valve can be recognized by the large float assembly (box), which is
positioned on top of the Drain Valve. This component is operated by the volume of water
(weight), hence enabling it to be used in high and low water pressure areas. It does not re
quire any electrical connections, therefore the active and neutral pins on the MRU are not
used.
Notes: Valve operates by spring return open
In operation water should be 10mm below overflow point.
IMPORTANT: The Counterweight Drain Valve is not interchangeable with an Electric Drain Valve
REAR BARB
FRONT BARB
ADJUSTING SCREW
Pre 03/04
SUPPORT
FLOAT ASSEMBLY
3 mm & 5 mm
STAINLESS STEEL
Water level to be set 10mm
below overflow
Blue 40mm Square Section ‘O’ ring
Black 40mm Round Section ‘O’ ring
SUPPORT ARM With no adjusting screw