ECO FLUSHINSTAllATION ANO SERVICEJUlY 1984

PROOUCT TYPE KF ITOllE T FLUSH VALVES

INSTAllATION INSTRUCTIONS

Ref. K F1.1 04 including

1. Flushvalve2. Flushpipe3. Flush pipe connector

FM2.100FMT1.1FMV8.3

85mm

2

38 mm120 mm MAX110 mm MIN

30 mm M20 fMl MIN

3

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Installation Requirements

INLET 32mm. (11/4 BSPl Female

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Before cmmissioning the valve, remove the piston and flush piping thoroughly.

Econoflush Flushvalves are suitable for operation with flow pressures ranging from 30 kPa to 600 kPa when fittedto the back-entry pans.

The water supply system should be designed so as to yield a minimum flow rate of 100e!min at each valve.

Valves must be accessible for servicing and a minimum clearance of 50 mm is required above the unit for this purpose.

The outlet of the valve must face vertically downwards .

.- Econoflush Flushvalves are suitable tor both Syphon Jet and washdown pans.

Specifiers and installers are encouraged to take advantage of our Pipe Design and Technical Advice Service.

Pipe Sizing pipes smaller than 32 mm must not be used for Econofush Flushvalves

friction loss across a 25 mm water meter (7m3) has be en taken into account in the table below

the maximum distances on the table below may be increased by 25%if pvc or domestic copper pipe is used

the table below applies to single valve installations only; for installations falling outside the scope of the table, i.e.Multiple valve and/or feeding from a supply tank, contact our Pipe Design and Technical Design Service. failingwhich no guarantee for the correct functioning of the valve will be given

liming up of pipes should be taken into consideration.

TABLE 1

Min. static pressureMax. length of pipe in metersbetween flushvalve and water-

main (not meter)

l:m-11~b- -- - - --o - - Female Inlet

I,

kPa

130150175200225250275300

VALVE DETAILSl'

160

85

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l.Valve Performance

32 mm pipe

210192938485867

I-1

40 mm pipa

42039597897117136

The valve should yield 8 to 9 litres per flush in 7 to 8 seconds.

The cycle time should be maintained even if the pushbutton is depressed indefinitely.This is the non hold open feature.

Should the valve not comply with these requirements, consult the Fault Finder.

SETTI NG INSTRUCTIONSSet the valve by first adjusting the flowrate and then the cycle time.

Flowrate adjustment:The flowrate is adjusted at the butterfly shut-off valve with a screwdriver. The valve is fully open when the slot is horizontaland closed when the slot is vertical. The flowrate should be set to give the maximum flowrate without causing anysplashing.

Flushing Cycle Time Adjustment:The cycle time is regulated with the time adjustment screw positioned above the pushbutton. It should be set to ensurethat the flush will clear the pan. ..~---------

SERVICING INSTRUCTIONS

Exploded View

4

i6

11 \10

I 18

~17,CD ~

~15

I

Disassembly:

1. Piston from valve -

1.1 Close the butterfly shut off valve (18) with a screw-driver. The valve is closed when the slot is vertical.

1.2 Unscrew and remove the cover (3) with a 30 mmA/F spanner.

1.3 Lift out the piston (5)

1.4 The main seat washer (2) is a press fit in the bodyand-is removed by levering out with a screwdriver.Take particular care to avoid damaging.

2. Piston-

2.1 Unscrew and remove the four screws

2.2 Lift off the top plate and double cap seal

2.3 Remove the spring and relief valve.

2.4 The relief valve washer is a press fit in the pistonand is removed by levering out with a screwdriver.Take particular care to avoid damaging.

3. Pushbutton -

3.1 Unscrew and remove the cap nut (6) with a 38 mmA./F spanner.

3.2 Pu\l out the pushbutton (7) support sleeve (8)plunger (9) "O" ring cover (10) "O" ring (11)

! --Screw~;

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~~Ooub!e cap~ sea

~

~SpringI

Cleaning:

Clean all the parts carefu \ly and check for damage,particularly the following parts -

the main seat washer (2)the main seat on the pistonthe relief valve washerthe relief valvethe double cap sealthe inside of the cover (3) - if the chrome platinghas worn off, the cover should be replaced. Failureto do so will probabiy cause the piston to stickin the open position.by-pass, if blocked, can be cleaned with a needle.

Assembly -

Reassemble in reverse sequence.

Note: When reassembling the push button take careto ensure the lug on the support.sleve is located intothe slot on the body.

After servicing operate the valve a few times to removeall the air from inside the valve, pouring a little water ontop of the piston before fitting the cover will help in re-moving the air. The valve should then operate norrnaltv.

SPARE PARTSRef. No. Description

FM8.30 Piston Assembly

FM8.50 Washer Kit

FMV1.l

FMV1.2

FM8.60

Double cap seal

Main seat washer

Handle plungerassembly

FAUlT FINDER

Items Included Ref. No. Description Items Included

Pistn 5 FM8.70 Push button seal "O" ring cover 10Main seat washer 2 "O" ring 11Cover seal 4 FMC1.012 Top cover Top cover 3Double cap seal FM8.14 Pipe coupling Nut 15Main seat washer 2 Slip ring 16Relief seat washer Washer 17Cover seal 4"O" ring 13a FM8.15 Coupling washers Slip ring 16"O" ring cover 10 Washer 17"O" ring 11

Double cap seal

Main seat washer 2 ACCESSORIESScrew 14Plunger Guide 13 Ref. No. DescriptionPlunger 9Spring 12 FMT1.1 Flushpipe 335 x 140 CP"O" ring cover 10"O" ring 11 FMV8.3 Flushpipe connector 38 mm .'{1%}

Complaint Probable Cause

Inadequate flush Incorrect butterfly settingFlushpipe too deep in panInadequate pipe size }Inadequate supply pressure

Excessive flow Incorrect butterfly setting .

Flush time too short Incorrect time adjustment settingFaulty pistonInadequate pipe size }Inadequate supply pressure

Flush time too long Incorrect time adjustment settingDirt in pistonInadequate supply pressure

No flush Butterfly closedFaulty pistonStop cock in supply closed

Valve not shutting off Dirt in pistonFaulty pistonInadequate supply pressure

Dirt on main seat washerCover (3) limed up

Valve leaking at vacuum breaker Back pressurefrom pan dueto blockageFlushpipe too deep in pan

Water not circulating in pan Flushpipe too deep in panor not square

Water hammer Air in systemInadequate pipe size

Non hold open feature not working Telescope pin jammed

Valve leaking at push button Faulty push button seal

What to do

Adjust butterfly 18Adjust depth of flushpipeConsult installation requirements orour Technical Advice service

Adjust butterfly 18

Reset time adjustment 14Change piston 5Consult installation requirements orour Technical Advice service

Reset time adjustment 14Follow servicing instructionsConsult installation requirements orour Technical Advice service

Open butterflv 18Change piston 5Open stop cock fully

Follow servicing instructionsChange piston 5Consult installation requirements orour Technical Advice serviceFollow servicinq instructionsReplace cover 3

Clean pan inlet ports-' Adjust depth of flushpipe

Adjust depth of flushpipe or realign

Fit air releasevalveConsult installation requirements orour Technical Advice service

Loosen pin - it must slide freely

Change push button seal 10 & 11

~ cobra watertech