Dunkirk 95M-200 Parameter Manual page 15

Para. Name
DHW detec-
26 tion differen- -2° to 54°F
tial ON
DHW detec-
27 tion differen- -2° to 54°F
tial OFF
Blocking time 0 to 306 sec-
28
CH
Blocking time 0 to 306 sec-
29
DHW
Blocking time 1 to 306 sec-
30
DHW to CH
T1 - T2 dif-
ference for
31 10° to 72°
modulating
back
(RMCI off)
RMCI
32
address
0 to 7 B87
T Plus
(setvalue
33 0° to 54°F
addition for
DHW)
Range
Gascom Boiler
Software Display
-2 to 54
-2 to 54
0 to 30
(times 10.2
onds
seconds)
0 to 30
(times 10.2
onds
seconds)
0 to 30
(times 10.2
onds
seconds)
10 to 72
-1 -1
(RMCI off)
0 to 7
(address) (address)
0 to 54
Boiler Display
Display Position
1st 2nd 3rd 4th
Initial reading:
P . 2
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 2
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 2
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 2
After 2 to 3 seconds:
Blank Blank Setting
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 . 3
After 2 to 3 seconds:
Blank Blank Setting
Initial reading:
P . 3
After 2 to 3 seconds:
Blank Setting
15
Description
• Differential may also be referred to as
"hysteresis"
6 • This parameter has no effect unless a
DHW sensor is used - not recommended
(use an aquastat instead).
• This is the temperature the DHW water
must drop below DHW setpoint tempera-
ture to turn the boiler on.
• Differential may also be referred to as
"hysteresis"
7 • This parameter has no effect unless a
DHW sensor is used - not recommended
(use an aquastat instead).
• This is the temperature the DHW water
must rise above DHW setpoint tempera-
ture to turn the boiler off.
Parameter 28 is the minimum time be-
tween consecutive central heating cycles.
8
After a call for heat is satisfied, the boiler
will remain off for at least the blocking time
before starting another cycle.
Parameter 29 is the minimum time between
consecutive DHW heating cycles. After the
9
DHW call for heat is satisfied the boiler will
remain off for at least the blocking time be-
fore starting another DHW cycle.
Parameter 30 is the minimum wait time af-
ter a DHW call before the boiler will start
0
on a call for central heating. If a DHW call
is satisfied and a central heating call starts,
the boiler will shut down and wait the block-
ing time before starting.
• If the difference between boiler outlet wa-
ter temperature (T1) and return tempera-
1
ture (T2) is larger than parameter 31, the
boiler is forced to low fire.
• DO NOT set higher than factory defaults.
2 DO NOT CHANGE this parameter. It is
intended for use with an RMCI 1400 inter-
face device, currently not available.
• Parameter 33 sets the target boiler out-
let water temperature in DHW mode. Add
3
parameter 33 to parameter 1 to determine
the target temperature
• Factory default is 150°F for parameter
1 and 30° for parameter 33, for a total of
180°F as the DHW boiler outlet water tem-
perature.