68
Part 1 - General Safety Information
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Description
Value
Default Setting
2
3 BOILER CH PARAMETERS - 1
2
3
1
Adjustable max CH power percentage
0 - 100
100
Limited by the absolute values
defined by parameters 2.3.3 and
2.3.4, i.e., 0 = min power and 100
= max power.
2
3
2
Absolute Max DHW power percentage
CANNOT BE MODIFIED
0 - 100
RESERVED FOR TECHNICAL
ASSISTANCE
Only if the gas or PCB is
changed. See Table 32.
2
3
3
Absolute Min boiler power percentage
CANNOT BE MODIFIED
0 - 100
2
3
4
Absolute Max CH percentage
CANNOT BE MODIFIED
0 - 100
2
3
5
CH Anti-cycling time mode
0 = Manual, 1 = Automatic
1
2
3
6
CH Anti-cycling Ignition Time Delay
(when 2.3.5 = 0)
0 - 7 (minutes)
3
2
3
7
Boiler Pump Post Circulation Time (After CH)
0 - 15 minutes or OC (On Conti-
nuously)
3
2
4 BOILER PARAMETER - PART 2
2
4
3
CH Fan Post-Purge
0 = 2 minutes, 1 = 5 minutes
1
2
4
4
CH Boost Interval
0 - 60 (minutes)
16
Only applicable when the type
of temperature control is set to
Basic Temp. Control
(Parameter 4.2.1 - 5.2.1 - 6.2.1
= 1)
Sets the time delay between the automatic adjustments of the boiler target temperature in
increments of +/- 7°F.
2
4
7
CH Pressure Safety
1 = pressure switch at minimum
1
RESERVED FOR TECHNICAL
ASSISTANCE
Only if the PCB is changed
2
4
9
Outdoor Temperature Reading Correction
-5 - +5 (°F)
0
Only active with outdoor sensor
connected
2
5 DOMESTIC HOT WATER PARAMETER
2
5
0
DHW COMFORT function
0 = deactivated, 1 = timed,
2 = always on
2
FTVN Non-Combi models set to 2 – Always On =
This is not changeable.
FTVN Combi models set to 0 – Deactivated =
COMFORT function is not active.
FTVN Combi
models set to 1 or 2 – On
(activates conditionally once per Comfort Anti-cycling Time)
=
Activating the COMFORT
function keeps the DHW heat exchanger temperature warm when a DHW demand is not active. This reduces the amount of time it
takes for the boiler to meet a hot water demand. COMFORT will display when this function is active.
NOTE:
Parameter 251 ”Comfort Anti-cycling Time”, is defaulted to 60 min, and has a range [0 -120] min.
2
5
1
DHW Comfort Anti-cycling Time
0 - 120 (minutes)
60
2
5
2
DHW Start Delay
5 - 200 (0.5 to 20 seconds)
5
Anti “water hammering”
2
5
3
DHW Switch Off Logic
0 = anti-scale (stop at > 144°F)
1 = + 7 °F /setting
0
2
5
4
DHW Post Purge and Pump Cycle
0 = OFF, 1 = ON
1
OFF = 30 second post-circulation and 2 minute post-ventilation (or 3 minute post-circulation and 5 minute post-ventilation if the
boiler temperature requires it)
ON = When setting is ON, time for post-circulation is 3 minutes, while the time for post-ventilation is 5 minutes.
2
5
5
CH Start Delay Following DHW
0 - 30 (minutes)
0
2
5
7
Anti-legionella Function
0 = OFF
1 = ON
0
FTVN Non-Combi
= Activated
when the boiler is connected to
a tank by an NTC sensor.
(Parameter 228 = 1)
This function prevents the formation of Legionnaire’s disease bacteria which may develop in piping and indirect water heaters
(IWH) at temperatures between 68°F and 104°F. When activated, if the IWH temperature stays below 138°F for over 100 hours, the
boiler will heat the water in the IWH until it reaches 149°F for 30 minutes.
2
5
8
Antilegionella frequency
24 - 720 (Hours), or 30 days
30
days
FTVN Non-Combi
= Activated
when the boiler is connected to
a tank by an NTC sensor.
(Parameter 228 = 1)
Part 9 - Controls
Содержание FTVN
Страница 98: ...98 Maintenance Notes...