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Negative Head Option
Planning your installation
DURASPEED, DURASPEED 2, VARISPEED 50,
VARISPEED SI & SINGLESPEED
Where the shower handset or pipework from the pump to the shower, is less than
230mm below the water level in the cold water tank, or in cases where it is above
the water level, there will be no natural flow to lift the flow switches and start the
pump. A negative head kit will be required to manually start the pump (Fig.9).
NewTeam Customer Services can supply a negative head kit, part no. 564-1000. If
NewTeam have not supplied your negative head switch, please contact NewTeam
Customer Services for a special connection block.
PROCEDURE
Instructions: Fit the electric pull cord switch adjacent to the showering area
(Fig. 10). Using 1.0mm
2
twin and earth cable (not supplied), connect the earth wire
to the earth terminal (using a suitable length of green/yellow sleeving) and the
remaining two wires to the L1 and L2 terminals in the pull cord switch. Run the
cable to the pump and then connect the earth wire (using a suitable length of
green/yellow sleeving) to the earth terminal and the remaining two wires to the
connection block on FS1 or FS2 (Fig. 10.). Connect to only FS1 or FS2 NOT
BOTH. Ensure that the original flow switch wires are reterminated in the new
connection block.
IMPORTANT: ENSURE THAT THE CONTROL BOX COVER CAN BE REPLACED
WITHOUT DAMAGING THE NEW CABLE. A CABLE GROMMET SHOULD BE
USED WHERE THE CABLE ENTERS THE BOX.
Fig. 9. Diagram of Twin - pump
Negative Head Installation
momentary action
pull-cord switch
Fig. 10. P.C.B
NEWTEAM SHOWER PUMPS
8
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