Thermix KPH 2400C Operation manual

1
Installation & User Guide
Kitchen Plinth Heater models
KPH 2400C and KPH-2400W
Classic models Wireless models
Introduction
This heater is intended to install behind the plinth in the space under the kitchen cupboards. However,
it can be installed in similar kind of application.
This unit is made for two pipe pumped central heating systems. Flow and return and pipes should be
connected as per drawing mentioned in page 2.This unit should not be installed in one pipe system.
To allow enough airflow a minimum clearance of 20-25mm from the top of the unit to the any shelving.
This unit must be installed of flat surface to avoid vibration.
Isolating valves (not supplied) should be fitted to both pipes (flow & return) to allow easy servicing.
The flexible hose should be fitted to both pipe (flow & return) to allow easy servicing.
This unit should not be installed in bath room or high humid areas.
Electrical connections should be via 3A fused spur and it should be accessible after the installation.
The following items should be in the carton:
Product complete with pre-wired mains cable.
Flexible connecting Hoses
Fitted Grille
Fixing screws (2) with screw caps
Wireless Thermostat (Models KPH 2400-W Only)
In the event of any items missing or visibly damaged on unpackaging, please contact us on email
before starting any installation.
Installation:

2
1. The heater should be installed by a qualified
plumber. We recommend the use of a knee pad
when installing this product. Cut the opening in
the plinth to the size shown in the table. Use
method A or B.
Model
Width A
Height
B*
KPH 2400
540mm
97mm
* The overall height of the grille is 100mm. Use
care when cutting the opening.
A
A
B
B
2. Fit isolating valves (not supplied) to the
system flow and return pipes. Failure to fit
isolating valves may mean that the
product is not serviceable in the event of
failure. Remove and discard the two
rubber protection bungs in the copper
pipes and connect the flexible hoses
between system pipework and heater.
Open the isolating valves and check for
leaks.
N.B. either pipe may be used on flow or return.
3. Vent air through bleed screw if
necessary with flat blade screw
driver.
Flate heat
screw driver
Bleed Valve
I
O
II
4. Isolate electrical supply and
connect the heater electric cable to
the fused spur (3A). Ensure the
fused spur is not directly above the
heater and is accessible after
installation is complete. Electrical
works should be carried out by a
qualified electrician, in compliance
with local regulations
I
O
II
Fused Spur
5. Position heater, making sure the
flexible hoses is not kinked and the
electrical cable is not snagged.
Flow
Return

3
Commissioning:
Fault Finding:
(Please note the most common issue that causes the unit not to operate is due to the water temperature at the
heater and or water flow to the unit.)
Electrical Connections:
1. Turn on the electrical supply at the fused spur.
2. Set the switch to either l or ll.
3. Turn on the central heating system.
4. Set any room thermostat/s to maximum.
5. Check pipework connections for leaks
6. Set the switch to l –the fan should run and
heat will flow within a few minutes if water
temperature in the system is more than 40°C.
7. Balance the central heating system if Kitchen
plinth heater is installed on the same circuit as
panel radiators.
8. When the installation is working correctly,
remember to reset any room thermostat/s to its
normal setting
1. Fan does not run on any
switch setting.
a). Check the power supply is switched ON.
b). Check fuse in fused spur.
c). Check the wiring connections at the fused spur.
d).Check the pipes on the side of the unit are hot to touch if the
pipes are not hot please check the following :
>Ensure any existing room thermostat calling for heat
>Balance the Central heating to get flow to the plinth heater
>Increase the flow speed on heating circulation pump
6. Fix the heater to plinth
using fixing screw holes
located at either end of grille.
I
O
II
Grille to plinth securing
screw holes

4
The wires in the mains cable are colored in accordance with the following code:
Earth: Green and Yellow
Neutral: Blue
Live: Brown
Note: Please make sure that this unit is earthed.
Product Performance Table:
Model
Speed
Output
@ 75°C
( watts)
Output
@ 70°C
( watts)
Output
@ 65°C
( watts)
Output
@ 60°C
( watts)
Output
@ 55°C
( watts)
Output
@ 50°C
( watts)
Output
@ 45°C
( watts)
KPH-2400C
&KPH-2400W
Low
2035
1730
1585
1490
1335
1135
1040
High
2350
2058
1900
1685
1545
1400
1230
Because of our policy of continuous improvement, we reserve right to make changes in all specification
without notice.
Warranty:
Products with this symbol (crossed out wheelie bin) cannot be disposed as household waste. Old electrical and electronic equipment must be recycled at a
facility capable of handling these products and their waste by-products. If you are purchasing replacement equipment your retailer may offer a 'take back'
scheme, or will be able to give details of the nearest approved authorised treatment facility. Proper recycling and waste disposal will help conserve
resources whilst preventing detrimental effects on our health and the environment.
This product is covered by a standard 12 month product replacement warranty against any manufacturing defects
or workmanship. Warranty is only for the main product not for any accessories that comes with the heater. The
manufacturer reserves the right to replace or repair the product. To extend your warranty to 24 months the product
must be registered online within 28 days from purchase date. See the warranty instruction note included for more
details.
This warranty will not cover:
Necessary maintenance and repair or replacement of parts due to normal wear and tear.
Transport costs, labour cost related to commissioning/decommissioning the product from the central heating
system.
Any damage resulting from modifications or adjustments which may be made to the product.
Thermix UK Ltd
The North Colchester Business,
340 The Crescent, Colchester, CO4 9AD
web www.thermix.co.uk
email: [e-mail]