Install Instructions

23
The control display, along with Up ñ, Down ò, and “I”
keys may be used to view boiler operating status (Figure 21).
D. 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:
1. Press and release the “I” key on the control to
change from one parameter to the next. Each setting
will alternately ash 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
4 Prepurge
6 Spark
7 Flame Proving
8 Running
10 Retry/Recycle Delay
13 Soft Lockout
14 Hard Lockout
15 Waiting for Limit to Close
16 Flame Present Out of Sequence
17 Self Test
18 Waiting for Damper to Open
20 Damper Failure to Open
Figure 21: Boiler Display
For example, when the “I” key is pressed on the control
until “bt” is displayed, it will then ash 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.
Unit Display
OR
Sample
Display
1 sec
1 sec
1 sec
Please note that in operating mode to hold the display on
the value the user can press and hold either the Up ñ or
Down ò keys and the value will be continuously shown.
This may be helpful in watching a value “live”.
E. CHANGING THE ADJUSTABLE PARAMETERS
To adjust parameters such as High Limit Setpoint and
High Limit Differential:
1. Access the adjustment mode by pressing and holding
the Up ñ, Down ò, and “I” keys simultaneously
for three (3) seconds. This procedure is intended
to discourage unauthorized changes or accidental
changes to limit settings.
2. Press the "
I" key to display available Adjustment
Mode options. Select an option.
Adjustment Mode Options
HL_
140-220°F Adjust High Limit Setting
dF_
10-30°F Adjust High Limit Differential
Or_
0-10 minutes Circulator Overrun Time
PP_
2-20 minutes Circulator Pre-purge Time
St_
140-180°F Start Temperature
Pt_
On or off Priority time
dh_
dh or tt2 DH Terminal Function
rst
Reset Lockout
f-C
F or C Select degrees F or C Mode
bac
Back to Operating Mode
3. Press the Up ñ and Down ò keys to adjust the
displayed item to the desired value.
4. To return to the normal operating mode from
the Adjustment Mode, when the "bAc” option is
displayed, press either the Up ñ or Down ò key.
If no keys are pressed, after ve (5) minutes the
control will automatically return to the Operating
Mode.
F. MORE INFORMATION ABOUT ADJUSTABLE
PARAMETERS
1. High Limit (HL_)
The control is factory programmed with a High
Limit Setpoint of 180°F. The burner turns "off"
when the boiler water temperature (bt) is above
this value. The High Limit setpoint is adjustable
between 140° and 220°F. The Operating Setpoint
(SP) will equal the High Limit Setpoint.