Diamond Bidex 500 Installation Instructions Manual

INSTALLATION
INSTRUCTIONS

Step 1 Location

Select a location in a cavity beneath a kitchen cupboard ensuring the area is clean
and level. Care should be taken not to store perishable goods in the cupboard directly
above the heater unit

Step 2 Central heating water supply

Supply should be through a 2 pipe pumped central heating system

Step 3 Electrical supply

Warning: This application must be earthed
A fused (5amp) electrical spur with a switch should be fitted in an easily accessible

position

.

Note: Electrical installation must comply with local or national regulations

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Step 4 Preparation

This product is normally fitted directly onto the floor.Once the position has been

decided, mark out and cut

the plinth to the dimensions as shown below

.

AB3203

320mm 100 mm

A= Width of cutout
B= Height of cutout

• Floor mounting

• Plinth mounting

Step 5 Water Connections

Fit the valve end of the flexible hoses to the Plinth Heater and the other ends to the
central heating flow and return pipe work. Note the direction of flow arrows on the valves
are not important in this application

System

y

pipe work

Flexible
hoses

Isolating
Valves

2

• Air vent screw

Step 6 System Venting

Fill the System and vent the air from the heat exchanger using the air vent screw. Close
the vent screw ensuring that there are no leaks.

Step 7 Fitting

Ensuring that the flexible hoses do not kink and the electrical cable is not in contact with any

hot surfaces slide the plinth heater under the cupboard until the front edge is just behind the
line of the plinth.
Replace the plinth and pull the heater through the opening till the front edge projects 8mm
through the plinth.

8mm

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Step 8 Fitting the Grill

Screw the Grill to the front of the Plinth Heater using the 2 shorter screws at point “A” Secure
the grill to the plinth using the longest screws at point “B”

A

B

Operation

Switch the unit on at the socket. Set the heating switch to the red disc position. Select the
fan speed to Low or Boost. The fan will start to rotate provided hot water is circulating
through the heat exchanger at or above 43degrees C. If the central heating system has just
been switched on there may be a delay in the fan starting till the system reaches 43degrees
C.
When the central heating system switches off and the system temperature drops below
43degrees C the fan will stop automatically.
During the summer the plinth heater can be used for air circulation without heat.
Set the heating switch to the Blue disc position. In this position the fan will run until the
unit is manually reset.

“0” Winter switch
“1” Summer switch

“I” Low

4

“

0” Of

f

“II” Boost

Maintenance

Before any maintenance is carried out on the unit the electrical supply must be
isolated.
Maintenance should be restricted to dust and lint removal around the unit.

Do not tamper with any electrical parts

A installer should be used for other maintenance requirements.

Technical Data

Test Pressure: 20 bar
Maximum working pressure:10 bar
Electrical supply: 220-240 V – 50 Hz.
Water connections: 15mm compression

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