Preferred JC-22D2 - Adjustable Start Menu; Draft Xmtr; Bargraph Setup

SDI-JC-22D2 rev. 11-1-21 page 15 of 22
Adjustable Start Menu
Parameter
Default
Max.
Min.
Go
to: Menu > Configure / Setup > Sequencing > Adjustable Start Menu
70 AIN 5 AIN 5
AC_DIN1
Burner Purging Input
Options: AC_DIN 1 / DC_DIN 2 / AIN 5
This signal indicates when the burner is at the Purge position
. See
page 5 des
cription.
71 90 95 50 Firing Rate % at Purge
If AIN 5 is selected as the Burner Purging Position input and the signal is greater than
this parameter, the Adj. Start sequence detects that the burner is Purging.
See page
5
description.
72 35 50 10 Fuel 1 Draft Ign. Position
When the JC-22D2 Fuel 2 input is de-energized,
the draft damper will go to this position
before checking adjustable start draft.
See page
5
description.
73 35 50 10 Fuel 2 Draft Ign. Position
When the JC-22D2 Fuel 2 input is energized, the draft damper will go to this position
before checking adjustable start draft.
See page
5
description.
74 -0.25 -0.1 -8.0 Ignition Draft Setpoint
Once the damper has reached the adjustable start position, If required, the damper will
will slowly jog
open D
raft
is more negative than
this setpoint.
See page
5
description.
Draft Xmtr.
Bargraph Setup
Parameter
Default
Max.
Min.
Go
to: Menu > Configure / Setup > Inputs / Outputs >
Draft Xmtr > Bargraph Setup
87
1.00
250.0
-
250.0
Draft at Bargraph Top
This sets the scale at the top of the bargraph.
88 -1.00 250.0 -250.0 Draft at Bargraph Bottom
This sets the scale at the bottom of the bargraph.
89
2
3
1
BG Tick Decimal
Digits
The number of decimal digits displayed at the bargraph 0%, 25%, 50, 75%,
and 100% marks.
Parameter
Default
Max.
Min.
Go to: Menu > Configure / Setup > Inputs / Outputs > Draft Xmtr
80 In. wc kPa In. wc Draft Xmtr Units
Options: in. wc / cm wc / mm wc / kPa
This is the Units text used on various screens.
Changing the Units does NOT change, or re-calculate, or any other parameter’s
numeric value
…such as the Control setpoint, Alarm setpoint, etc…
8
1
-
1.0
250.0
250.0
Xmtr 20 mA = ?? Draft
Draft transmitter 20 mA calibration value.
Fail Safe design for a xmtr or field wiring fault, typically means the xmtr 20 mA
calibration
should
correspond to the
more
negative
value
.
82 1.0 250.0 -250.0 Xmtr 4 mA = ?? Draft
Draft transmitter 4 mA calibration value.
Fail Safe design for a xmtr or field wiring fault, typically means the xmtr 4 mA
calibration should correspond to the
more positive value
.
8
3
2
3
1
Draft Decimal Digits
The number of digits
displayed on the screen to the right of the decimal point.
84 Draft Econ
Outlet
Draft Draft Xmtr Name
Options: Draft / Furnace / Outlet / Econ Outlet