Home : Product Database : Radiant Product Group : Vision : Vision VSHB Induced Burner Herringbone Radiant Heater : VSHB Maintenance : VS Range Servicing Procedure
VS Range Servicing Procedure

Vision VS Range Servicing

PLEASE READ this section prior to assembly to familiarise yourself with the components and tools you require at the various stages of assembly. Carefully open the packaging and check the contents against the parts and check list.

The manufacturer reserves the right to alter specifications without prior notice.

Please ensure that all packaging is disposed of in a safe environmentally friendly way.

For your own safety we recommend the use of safety boots and leather faced gloves when handling sharp or heavy items. The use of protective eye wear is also recommended.


Tools Required.

The following tools and equipment are advisable to complete the tasks laid out in this section. Suitable alternative tools may be used.

Servicing Notes.

Burner Description


Induced Burner: Models VS(A)LI, VS(A)LH, VS(A)UH and VS(A)DL

A

Ducted Air Inlet

B

Induced Air Inlet

 

Please refer to spares for burner components

C

Ignitor Assembly

D

Extruded Burner Head

E

Multi Hole Injector

F

Ignition Controller

G

Gas Valve

H

Pressure Switch

I

Neon's (Red/Amber)

J

Pepperpot Head

 
Forced Gas Burner: Model VSLF

A

2501 or 2507 Fan

B

Fan Inlet Spigot

C

Fan Orifice plate

D

Fan Mount Plate and Support

E

Gasket Set

 

Please refer to spares for burner components

F

Ignitor Assembly

G

Gas Valve

H

Multi Hole Injector

I

Neon's (Red/Amber)

J

Ignition Controller

K

Extruded Burner Head

L

Pepperpot Head

M

Pressure Switch

N

Jet Carrier


Burner Removal (All Options)

Step 1 Isolate mains electric and gas supplies. Unplug the fan and mains electricity connectors.


Step 2 Detach the gas supply as shown below, taking care to support the burner connection.


Step 3 On forced burners with ducted air attachment slacken jubilee clip and remove the flexible hose from the fan.


Step 4 Slacken the grub screw on the burner support casting using a 4mm Allen key to enable the burner to be removed from the radiant tube.


Step 5 Carefully remove the burner to prevent it or any components from falling to the ground and position the assembly in a safe area.


Burner Gas Injector Servicing

Step 1 Remove the burner support casting and gasket.


Step 2 The burner head assembly can be disconnected by separating the connectors of the ignition lead assembly and removing the pressure switch silicon tube.


Step 3 The gas injector can be inspected and replaced if contaminated or blocked.
When replacing the gas injector use a 12mm spanner and ensure approved thread sealant is used.


Step 4 Refit the burner support casting and replace the gaskets to ensure effective sealing.


Burner Head and Electrode Servicing


Step 1 Check the pepper pot burner head for contamination. If necessary the head can be removed for cleaning of the inside of the burner head, see below.


Step 2 The pepper pot burner head can be replaced ensuring the 5 holes on the outer ring are aligned alongside the probes.


Step 3 The condition of the ignitor assembly can be checked for deterioration. However, we advise replacement at each service to ensure continued reliability.

Step 4 Detach the electrode assembly from the burner head by removing the two screws and separating the ignitor lead connectors.

Step 5 Refit the electrode assembly and ensure the silicon sleeving is fitted as shown above to prevent arcing of the spark electrode.

Step 6 Check the positions and spark gap as shown below.

Step 7 The burner assembly is ready to refit after servicing the combustion fan and the radiant tube assembly.


Combustion Fan Assembly Induced Burner (Model VSLI/VSALI)


Step 1 Loosen the clamp fitting on the flue.


Step 2 Loosen the 4mm grub screw.


Step 3 The combustion fan can now be detached.

Step 4 Remove the fan orifice plate spinning.


 Step 5 Inspect the impeller and remove any dust with a soft brush.
 

Step 6 Remove any dust from fan scroll and from around the motor.


Step 7 Ensure the impeller rotates freely.

Step 8 Refit components.


Combustion Fan Assembly Forced Burner (Model VSLF only)

Step 1 On Forced burners with ducted air attachment slacken jubilee clip and remove the flexible hose from the fan.


Step 2 Remove fan spigot fixings.


Step 3 The combustion fan can now be detached.


Step 4 Remove the fan orifice plate spinning.

Step 5 Inspect the impeller and remove any dust with a soft brush.

Step 6 Remove any dust from fan scroll and from around the motor.


Radiant Tube Servicing

Step 1 Brush any dust from the exterior of the tubes.

Step 2 Inspect the fan and burner tubes visually. If the tubes appear clean, skip to servicing the reflector.

Step 3 Remove the U bend (or damper - HB products or condensate box - DL products).


Step 4 Withdraw the turbulators from the appliance. Carefully noting their condition and position. Replace turbulators if necessary.


Step 5 The turbulators should be cleaned with a soft brush.


Step 6 If required the interior of the tubes can then be cleaned using an industrial vacuum cleaner or by using long poles and a scraper.

Step 7 Refit components.


Reflector Servicing

The condition of the reflectors should be noted. If necessary the reflectors can be cleaned with a mild detergent. This can significantly improve the efficiency of the appliance.


Inspection of Flue

The flue needs to be inspected and cleaned if necessary or in accordance to the regulations of the country that the appliance is installed.

Re-commissioning After Service

After servicing of the heater has been undertaken, it will be necessary to re-commission the heater as detailed in Section 3 of these instructions.

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Approved Comments...
Hi im maintenance engineer and i found the manual layout excellent. Approved: 15/12/2010
Hi, I teach heating & Ventilation / Service & MMaintenance at Salford College, I have used this site to show my modern apprentice students the procedures for your modern burners and have found it to be excellent! The whole website is very handy and if I were still on the tools im sure it would be equaly as usefull! GDerbyshire - Salford College Approved: 21/04/2008
Last Modified on 23/07/2012.
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