Honeywell BCU 460 User Manual

BCU 460, BCU 465 · Edition 11.19 103
Parameters
11.12 Sensors
A sensor (pressure switch or POC switch) can be con-
nected to each of the inputs at terminals 36, 37 or38,
see also page116 (Function of input 36).
Parameter A101, A102 or A103 is used to define the
sensor function (the sensor type and the program sta-
tus at which the sensor signal is evaluated by the BCU).
Multiple sensors may be used in parallel for the same
function if two or three inputs are assigned the same
sensor function.
11.12.1 Function of sensor 1
Parameter A101
This parameter assigns a sensor function to terminal36.
Parameter A101 = 0: no function.
Parameter A101 = 1: air pressure switch Purge. The
signal from the air pressure switch is evaluated during
purging.
Parameter A101 = 2: air pressure switch Stage 1. The
signal from the air pressure switch is evaluated if gas
stage1 is enabled.
Parameter A101 = 3: air pressure switch Purge &
Stage1. The signal from the air pressure switch is eval-
uated during purging and if gas stage1 is enabled.
Parameter A101 = 4: air pressure switch Stage2. The
signal from the air pressure switch is evaluated if gas
stage2 is enabled.
Parameter A101 = 5: air pressure switch Purge &
Stage2. The signal from the air pressure switch is eval-
uated during purging and if gas stage2 is enabled.
Parameter A101 = 6: air pressure switch Stage1 &
Stage2. The signal from the air pressure switch is eval-
uated if gas stages 1 and2 are enabled.
Parameter A101 = 7: air pressure switch Purge & Stage1
& Stage2. The signal from the air pressure switch is
evaluated during purging and if gas stages 1 and2 are
enabled.
Parameter A101 = 8: air pressure switch Flameless. The
signal from the air pressure switch is evaluated during
Flameless mode.
Parameter A101 = 9: air pressure switch Purge & Flame-
less. The signal from the air pressure switch is evalu-
ated during purging and during Flameless mode.
Parameter A101 = 10: air pressure switch Stage 1 &
Flameless. The signal from the air pressure switch is
evaluated if gas stage1 and Flameless mode are ena-
bled.
Parameter A101 = 11: air pressure switch Purge &
Stage1 & Flameless. The signal from the air pressure
switch is evaluated during purging and if gas stage1 is
enabled and during Flameless mode.
Parameter A101 = 12: air pressure switch Stage 2 &
Flameless. The signal from the air pressure switch is
evaluated if gas stage2 and Flameless mode are ena-
bled.
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Honeywell BCU 460 Specifications

General

Brand	Honeywell
Model	BCU 460
Category	Control Unit
Language	English