Lefroy Brooks M1-4100 Assembly instructions

INSTALLATION, OPERATING & MAINTENANCE INSTRUCTIONS
M1-4100
SINGLE HANDLE PRESSURE BALANCE ROUGH, TO SUIT M1-4300 & M1-4301

2
Contents
Dimensions 3
Instalation Procedure 4
Parts List 7
Fault Finder 8
Safety Tips, Care and Maintenance 9
Guarantee 10

6 1/4"
(158mm)
1/2"-14NPT
13/16"
(21mm)
2 3/4"
(70mm)
5 1/8"
(130mm)
3 15/16"
(100mm)
1/2"-14NPT
5 3/16"
(134mm)
1/2"-14NPT
1/2"-14NPT
2 7/16"
(62mm)
2 15/16"
(75mm)
3
Dimensions in Inches (& Millimetres)
Whilst every effort is made to ensure accuracy, design and dimensions are subject to change without
notice as part of the company’s product development process.

1
2
75~100mm
wall surface
wall surface
82~107mm
For round trim plates: CW-4070 & CB-4070 For rectangular trim plates: M1-4300, M1-4301,
X1-1998, X1-1999
HOT WATER - IN
COLD WATER - IN
mixed water out
Note: Plaster guard
Keep a distance of 7mm at least
from the wall surface to the front
of the plaster guard so that the
trim kit CW-4070 & CB-4070 can
be fitted successfully.
4
Steps 1-2
Installation Procedure
Lefroy Brooks always recommends that plumbing products be installed by a licensed professional.
Shut off main water supply before installation.
1Position valve into the wall as shown.
2Connect the valve to the water pipes.

3
4 5
Ø145~150mm
For round trim plates: CW-4070 & CB-4070 For rectangular trim plates: M1-4300, M1-4301,
X1-1998, X1-1999
95~100mm
135~140mm
R15mm
Stopper A
(marked #049000)
Stopper B
(marked #049001)
Washer C
5
Installation Procedure Steps 3-5
Lefroy Brooks always recommends that plumbing products be installed by a licensed professional.
Shut off main water supply before installation.
3Cut a hole on the wall surface for fitting the trim kit. The hole dimension is as shown in figure 3
4Throw away the protective cap only when the building construction is completed and you are
ready to fit the trim kit.
REMOVE CAP ONLY, KEEP THE REST OF THE MUD GUARD AS IT IS NEEDED TO HOLD THE TRIM
FIXING SCREWS.
5Temperature Limiting Device:
Remove washer C, then take off stopper A & B.

6 7 8
9 10
Dimple on
valve stem
Notch
Stopper A
(marked #049000) Stopper B
(marked #049001)
0 tooth
8 teeth
12 teeth
HIGHT TEMPERATURE SETTING
(with 150° operation range)
AVERAGE TEMPERATURE SETTING
(with 90° operation range)
LOW TEMPERATURE SETTING
(with 60° operation range)
Stopper B
(marked
#049001)
Stopper A
(marked
#049000)
6
Installation Procedure Steps 6-10
Lefroy Brooks always recommends that plumbing products be installed by a licensed professional.
Shut off main water supply before installation.
6Turn the valve stem so that the round dimple on the stem is facing upwards.
7Install stopper A onto valve stem. Notch on stopper A should point upward.
8Install stopper B. The word “up” should face out.
9Figures I, II, III show how to adjust the temperature limit stop. Having this open at eight notches is
recommended.
10 Install washer.

1
2
11
3
4
6
8
9
10
13
12
5
7
1 Plaster guard (127212)
2 Adjusting ring (104105)
3 Screw (075083)
4 Fixing board (126055)
5 Nut (009808)
6 Sleeve (041061)
7 PB cartridge assembly (507150)
8 Check valve (507037)
9 Spring (005006)
10 Body (061930)
11 Screw (008241)
12 Washer (013182)
13 Plug (028004)
7
Parts List Exploded view

8
Fault Finder
Fault Cause Rectification
Too low flow. Check valves not fully open.
Showerheads clogged.
Water pressure from either hot or
cold is too low.
Inspect check valves to ensure they
are fully open/ flush the system.
Remove and clean showerheads.
May need to replace if clogged.
Check for water pressure and adjust
to proper pressure level.
Leaks around handle. Cartridge has come loose or
damaged.
Tighten/reinstall the cartridge or
replacement the cartridge if it is
damaged.

9
Safety Tips, Care and Maintenance
Safety Tips
If you are soldering during faucet installation,remove cartridges, seats, gaskets and washers prior to
applying flame, otherwise you will void the warranty.
Cover drain openings to avoid losing small parts.
When cutting or soldering pipe, use safety glasses to protect your eyes.
Important Points
Prior to beginning installation. turn off the cold and hot water lines and open the old faucet to release
built-up pressure.
Overtightening nuts may cause damage.
Wrap all threaded connections with pipe tape available at your local plumbing supply store.
Always wrap in a clockwise direction. The fittings should be installed by a state-licenced plumber.
Please note:
When there is a difference in water pressure between hot and cold supplies to the mixing valve, the
pressures should be equalized by a plumber in accordance with best practice and legislation.
Maintenance
Your new bathroom faucet is designed for years of trouble-free performance. Keep it looking new by
cleaning it periodically with a soft cloth. Avoid abrasive cleaners, wire wool and harsh chemicals as
these will dull the finish and void your warranty.
Routine Maintenance
The frequency and extent of attention required will vary according to prevailing site and operational
conditions, however a 12 monthly maintenance schedule is recommended.
If the product has operated satisfactorily for some time, but performance has been degraded, please
check the Fault Finder section to identify the problem.
Maintenance Check List
 • Wornordamagedsealsandwashers
 • Damagedsealfaces
 • Threadwear
 • Incorrectadjustment
 • Componentfailure
 • Debrisorlimescalebuild-up

10
Guarantee
Guarantee of Quality
This product is guaranteed against faulty materials and workmanship for 12 months from date
of purchase. For the guarantee to be valid, the unit must be installed by a competent person, in
accordance with the instruction booklet.
Any part found to be defective during the guarantee period, will (at our option) be repaired or
replaced, free of charge, provided the unit has been installed, and properly used in
accordance with the instruction booklet.
Our products correspond to the valid technical and water supply standards as well as the relevant
approvals requirements. We guarantee them to be free of design and production faults at the time
of delivery and that with correct use and care in accordance with our printed instructions they will
function reliably.
Guarantee period
•The guarantee is valid in private homes for 5 years from the purchase date. Proof of purchase
has to be provided when making a guarantee claim.
•By use in commercial or institutional applications the guarantee is valid for 1 year after first use.
To make a guarantee claim, proof of purchase or, the beginning of use is required.
Not Covered by this Guarantee
Damage or defects arising from incorrect installation, improper use or lack of maintenance.
Installed product damaged in transit Consequential loss, damage or product removal and installation
costs.
Lefroy Brooks is not responsible for any on site labour charges.

The use of trademarks, product design and artwork is subject to licence or agreement with Christo A. Lefroy Brooks. The design
registrations, trademark registrations and copyrights are protected by law and the use or reproduction outside the terms of an agreement is prohibited.
The right to modify designs and dimensions is reserved. Christo Lefroy Brooks is a member of ACID (Anti Copying in Design).
LEFROY BROOKS INC, 1828 TROUTMAN STREET, RIDGEWOOD, NY, 11385
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COPYRIGHT©LBIP LTD 2013
718-302-5292
www.lefroybrooks.com