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Beech Ovens
RND-REC-RGO Manual (R1)
Preheating with Gas
Before the oven can be used for cooking it must undergo a Preheat or curing stage.
This is a gradual, low flame stage designed to thoroughly "warm" the oven prior to use.
This is common practice for all ovens and must be done to ensure that the materials in
the oven are slowly "cured" to reduce cracking. The oven should be preheated for at
least 72 hours. (three (3) days)
Once the oven has been commissioned and all installation work is complete, the oven is
now ready for Preheating.
For ovens with two (2) burners, leave one (1) manual gas isolation valve closed.
To preheat the oven, turn the main control switch to ON.
While on High Flame, manually decrease the flame size to approximately half (approx
150mm high) by closing the manual gas isolation valve. This will allow a lesser amount
of gas to burn, allowing a smaller flame.
Manual gas isolation valve in
half open position.
Handle Vertical = OPEN
Handle Horizontal = CLOSED
With the settings in place from commissioning, the oven will now run continuously,
automatically keeping the set point temperature (SV) at 100°C.
After day one (1) raise the set point temperature (SV) to 150°C.
After day two (2) raise the set point temperature (SV) to 200°C.
NOTE: It is vital that only a small flame is used to preheat the oven. A large,
fierce flame may crack the walls. Cracking can not be repaired, though will not
effect the longevity or performance of the oven.
Page 86
Confidential and Proprietary
28/07/2011 (C)
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