Dunkirk 95M-200 Parameter Manual page 18

Para. Name
-1 (auto op-
Manual
36
fanspeed
0 to 100 (%)
37
(1st
digit)
PWM level
CH-pump (pump speed)
37
(2nd
digit)
(feature off)
38 T Hold
32 to 176° F
T6 Top
39 2nd CH 50 to 176° F
circuit
T6 Foot
40 2nd CH 50 to 70° F
circuit
T6
Differential
41
2nd CH
circuit
42 0, 1, 2, or 3
(1st (see right)
Special pump
digit)
CH/DHW
42 (feature off)
Low/Off cycle
(2nd
digit) (feature on)
Range
Gascom Boiler
Software Display
-1 (auto)
eration)
0 to 100 (%)
1 to 4
1 to 4
32 32
(feature off)
32 to 176
50 to 176
50 to 70
2 to 54° F 2 to 54
0 to 3
0
0 or 1
1
Boiler Display
Display Position
1st 2nd 3rd 4th
Initial reading:
P . 3
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 3
After 2 to 3 seconds:
Digit Digit
Blank Blank
1
Initial reading:
P . 3
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 3
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 4
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 4
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 4
After 2 to 3 seconds:
Digit Digit
Blank Blank
1
18
Description
Use this parameter, if desired, to manually
set the boiler at a fixed input. The manual
6
operation will only continue for 15 minutes.
The control module then returns to auto-
matic operation.
7
This function is not currently supported.
2
Parameter 38 sets minimum standby tem-
perature for boiler. If boiler outlet or return
7
water temperature is sensed at less than T
Hold, the boiler fires (without pump operat-
ing to bring temperature up to T Hold).
• This function is not currently supported.
9
• Sets max. target boiler temperature dur-
ing call for heat from 2nd CH circuit (same
function as T1 Top for first CH circuit).
• This function is not currently supported.
0
• Sets min. target boiler temperature dur-
ing call for heat from 2nd CH circuit (same
function as T1 Foot for first CH circuit).
• This function is not currently supported.
• T6 Differential is the differential (hyster-
1
esis) for call for heat from 2nd CH circuit is
master. Boiler starts when outlet tempera-
ture drops T6 Differential below target out-
let temperature.
First digit (Special pump CH/DHW):
• 0 - NOT RECOMMENDED
2
Normal circulator operation for CH and
DHW
• 1 - NOT RECOMMENDED
Boiler circulator off on CH call for heat.
Normal circulator operation on DHW.
• 2 - RECOMMENDED SETTING
Boiler circulator normal operation. DHW
circulator 5-second delay before starting.
• 3 - NOT RECOMMENDED
Boiler circulator off on CH call for heat.
DHW circulator 5-second delay before
starting.
2
Second digit
• If boiler continues firing at low fire for 3
minutes or longer, the boiler will begin
cycling like an on/off boiler, firing only
at low fire, for cycle times of 10 minutes.
• The boiler will return to normal (modulat-
ing) operation if the burner is either off or
on for at least 9 minutes.
(Low/off cycle):