11
Oven venting systems
See
Fig. 2.8
The appliance oven venting pipe can be achieved up to a maximum length of 6 metres, through an
outside wall. Great care must be taken in all-timber houses.
If the oven vent pipe passes through combustible material, there must be an air gap of at least 25mm
around the pipe and preferably wrapped with insulation material.
The max supply to the motor, as calculated should be limited to 22V (DC), for ideal operating
conditions.
Calculating the voltage for the particular pipework is as follows:-
1.
Keep the pipe run as simple as possible - avoid bends.
2.
“Vertical risers” are not permitted.
3.
Pipe run should be horizontal - slight downwards slope towards the fan.
Minimum 12 volts for first metre of vent pipe run inclusive of 1 bend
Each extra metre add 1 volt.
Each extra bend add 2 volts
Maximum allowed 22 volts.
Minimum setting is 15 volts.
NOTE: IN THE OVEN VENTING, PROVISION MUST BE MADE FOR EASY ‘RODDING’ OF THE PIPEWORK
TO FACILITATE CLEANING.
Fig. 2.8
DESN 516111
VENT PIPE
FROM OVEN
SUPPLY CABLE
EARTH POST
VENT PIPE
CABLE ENTRY
WALL MOUNTING HOLES
WALL FIXING AND SERVICE HOLE
REQUIREMENTS
Summary of Contents for eR7 100-3
Page 3: ...ii ...
