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Building Technologies Basic documentation LMV37.4... CC1P7546en
HVAC Products 22 Operation of basic unit via AZL2… 01.12.2009
22.1.2.3. List of phase displays
Phase Function
Ph00 Lockout phase
Ph01 Safety phase
Ph10 Home run
Ph12 Standby (stationary)
Ph22 Fan ramp up time (fan motor = ON, safety valve = ON)
Ph24 Traveling to the prepurge position
Ph30 Prepurge time
Ph36 Traveling to the ignition position
Ph38 Preignition time
Ph39 Valve proving filling time
(test of pressure switch-min when fitted between fuel valves V1 and V2)
Ph40 1st safety time (ignition transformer ON)
Ph42 1st safety time (ignition transformer OFF)
Ph44 Interval 1
Ph50 2nd safety time
Ph52 Interval 2
Ph60 Operation 1 (stationary)
Ph62 Max. time low-fire (operation 2, preparing for shutdown, traveling to low-fire)
Ph70 Afterburn time
Ph72 Traveling to the postpurge position
Ph74 Postpurge time (no extraneous light test)
Ph78 Postpurge time (t3) (abortion when load controller ON)
Ph80 Valve proving test evacuation time
Ph81 Valve proving test time atmospheric pressure, atmospheric test
Ph82 Valve proving filling test, filling
Ph83 Valve proving time gas pressure, pressure test
Ph90 Gas shortage waiting time
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