ACCESS COMBUSTION, LLC
WARNING:
Only authorized burner service personnel should start, adjust, or service this equipment!
Rev. 05
Page 14 of 19
A
DJUSTMENT OF
G
AS
P
RESSURE
S
WITCH
Gas pressure switches may or may not be supplied with the burner. They are optional and depending on the local
code and regulations, the size of the burner and job specific requirements.
Gas pressure switches are pressure activated switch devices designed for safety shutoff when the gas pressure is
either too high or too low. If the gas pressure sensed by the device reaches the device set point, the switch will open,
causing a shutdown. The system will then recycle or lockout depending on the control system used.
Gas pressure switches are designed to operate over a specific range, therefore they must be selected to be
compatible with the burner operating gas pressure and have the desired features. Gas pressure switch
manufacturer’s
instructions should be consulted for detailed adjustment procedures.
