METHVEN KOHA User manual

Issue A436601
KOHA WALL MOUNTED SINGLE LEVER MIXER
INSTALLATION GUIDE
TECHNICAL SPECIFICATIONS
Operating Pressure:
Min 150 kPa, Max 1000 kPa.
Recommended 150 kPa - 500 kPa.
Install a pressure limiting valve if supply
exceeds 1000kPa.
Operating Temperature:
Hot: Max 80°C.
Cold: Min 5°C .
NB: New Zealand Building Code Clause G12 -
Water Supplies specifies all outlets used
primarily for personal hygiene shall deliver
water at a safe temperature.
Inlet Connections:
All ½" BSP.
Methven warrants this product against manufacturing defects and that it is suitable for use
under the operating conditions specified in this instruction sheet.
For your warranty please refer to www.methven.com or call Customer Service
New Zealand
0800 804 222
Australia
1300 638 483
USA
1800 975 5409
UK
0800 195 1602
Ceramic Cartridge Adjustment
Do not remove the ceramic cartridge from the body assembly while carrying out the following
adjustments. Note: the cartridge is factory set for maximum temperature
Remove half-dome (if attached)
Flow limiting adjustment
1.5mm Allen key
Mix temperature limiting adjustment
-
+
-
+

1/2” BSP
(Not Supplied)
Inlet Connector
Spout
M5 Grubscrew
Faceplate
Plumber to supply
connection
O-ring
Half Dome
Lever Handle
Screws
Body assembly Final fit-off (number 5 & 6)
A. Trim 1/2” BSP tube to length. Max 15mm +- 2mm protruding from wall lining. 26mm from
front of Inlet connector to wall lining.
B. Fit face plate to wall (use sealant).
C. Fit Inlet Connector and spout. Note: Do not turn spout against face plate to avoid marking.
Tighten with Allen Key.
D. Assemble ‘O’ ring, half dome and handle.
Cardboard sleeve
Apply silicon
sealant
Wall
1.
2.
3.
5.
6.
Distance from mounting
stud to front of lining: 57-68mm
Hole cutout 57mm
4.
110mm
Hole cutout
Max 22mm
IMPORTANT
Please read all of the instructions before installation
Avoid restrictive piping, fittings or sharp angled bends when plumbing the mixer.
Do not hydrostatic test the installation with this mixer installed. Damage to the ceramic
headworks may occur.
All pipe-work must be thoroughly flushed prior to installation of the mixer. In-line filters must
be installed on both hot and cold supplies to prevent foreign particles damaging the ceramic
headworks.
NOTE: It is the responsibility of the installer to ensure a water proof seal is achieved
between the faceplate and finished surface of the wall. If in any doubt about the quality
of the seal the faceplate should be removed and then reinstalled using silicon to ensure a
seal is achieved.
2.5mm Allen Key
Hot
Cold