U.S. Boiler Company ESC, Installation, Operating And Service Instructions

Page: 15 / 64

15
8. PROGRAM THE CONTROLS
Using Intelligent hydronic Control Display
1
. Press and release the “ I ” key on the IQ
control to change from one parameter to
the next. Each setting will alternately flash
between the relevant display code and its
corresponding value.
Operating Mode Options
StA
Status
bt
Boiler Temperature
SP
Operating Setpoint (Outdoor Reset)
HL
High Limit Setting
HdF
High Limit Differential
tt
Heat Request Status
dh
DHW Heat Request Status
FLA
Flame Current
rUn
Run Time Hours
CYC
Boiler Cycles
Err
Error (see Error Numbers)
The
STA
(status) display code has the below listed
values. This list is also available on the control
cover.
Status Code Displayed in
STA
Mode
1 Standby
2 Waiting for Pressure Switch to Open
3 Waiting for Pressure Switch to Close
4 Prepurge
6 Spark
7 Flame Proving
8 Running
10 Retry/Recycle Delay
11 Pressure Switch Failed to Open
12 Pressure Switch Failed to Close
13 Soft Lockout
14 Hard Lockout
15 Waiting for Limit to Close
16 Flame Present Out of Sequence
17 Self Test
For example, when the “ I ” key is pressed on the
control until “
bt
” is displayed, it will then flash a
three digit number (such as “
180
”) followed by
either “
F
” (or “
C
”). This indicates that the boiler
water temperature is 180°F. Other operating
parameters display the information in a similar
fashion.
The Intelligent Hydronic Control is located inside
the boiler front door, just above the IQ Option
Panel (Figure 8-a).
The control display, along with Up
ñ
, Down
ò
,
and “
I
” keys may be used to view boiler operating
status (Figure 8-b). Please note that these keys
look similar to the keys on the IQ Option Panel
but are in a different orientation, and they perform
different functions.
8-a
IQ option Panel
Intelligent
hydronic Control
8-b
Intelligent hydronic Control
Viewing the operating Mode options
In operating mode the user may view (but not
change) boiler operating status, settings and
troubleshooting information. To view control
display information:
Unit Display
OR
Sample
Display
1 sec
1 sec
1 sec