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X-PV
Installation, Operating & Service Manual
Table 11.5: Operating Mode Parameters
Parameter #
Description
Meaning
bt
Boiler Temperature
Current boiler water temperature measured by the control’s sensor.
SP
Boiler water set point
Current target temperature (always the same as the high limit setting un-
less the outdoor reset card option is installed).
HL
High Limit Set point
Boiler will stop firing if boiler water temperature exceeds this value
(Circulator/s will continue to operate)
HdF
High Limit Differential
If high limit setting is reached, boiler water temperature will need to drop
by this amount before boiler will again fire during the same call for heat.
tt
Heat Request Status Shown as either ON or OFF. Indicates whether there is a call for heat.
dh
DHW Request
Status
Shown as either ON or OFF. Indicates whether there is a call for domestic
hot water (DHW). Note that if the dh zone on the S9361A is used as a
second heating zone (see Table 12.6), this parameter will be shown as
OFF and tt will be shown as ON when this zone calls for heat.
FLA
Flame Current
Flame rectification signal (uA)
run
Run Time Hours
Total amount of time gas valve has been open (burner firing) since control
was new (hours, starting from 1).
CyC
Boiler Cycles
Total number of burner cycles on the control
Err
Error Number
Present only if the control has detected a problem. See Table
13.0
for a
list of error codes and suggested corrections.
Table 11.6: Adjustment Mode Parameters
Status # Description
Factory
Setting
Permissible Range
HL
High Limit Set point
180F
140-220F
dF
High Limit Differential
15F
10-30F
Or
Circulator overrun
0 min
0-10 minutes
PP
Thermal Purge time
2 min
2-20 minutes
St
Thermal Purge Start Temp
140F
140-180F
Pt
DHW Priority
ON
ON or OFF
dh
Use of Second Zone
dh
dh (dhw)
or
tt2 (2nd heating zone).
rst
Reset
N/A
OFF or
Momentary ON
F-C
Temperature Units
F
F or C
bAc
Exit Adj. mode
N/A
N/A
11
Operation
(continued)