LP-743 Rev. 000 Rel. 000 Date 8.25.20
16
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Sub-Menu
Parameter
Description Value
Default
Setting
34 - 40 3 3
Absolute Min boiler power percentage
CANNOT BE MODIFIED
0 - 100
Must be set in accordance with parameter 2.3.3 - see boiler Installation Manual.
34 - 40 3 4
Absolute Max CH percentage
CANNOT BE MODIFIED
0 - 100
Must be set in accordance with parameter 2.3.4 - see boiler Installation Manual.
34 - 40 3 5 NOT USED
34 - 40 3 6 NOT USED
34 - 40 3 7 Boiler Pump Post Circulation Time (After CH) 0 - 15 minutes or OC (On Continuously) 3
34 - 40 4 CENTRAL HEATING - 2
34 - 40 4 3
CH Fan Post-Purge 0 = 2 minutes, 1 = 5 minutes 1
Default: 0 for TRX085, 120, 150, 199, 110C, 150C, 199C
Default: 1 for FTVN085, 110, 150, 199, 110C, 150C, 199C
34 - 40 4 7 Pressure Detection Device 1 = Pressure Switch 1
34 - 40 5
DOMESTIC HOT WATER (Applicable for Upstream / Local [Individual Boiler] IWH)
NOTE: Parameters 34 - 40.10.1 and 34 - 40.10.2 are also for Upstream / Local (Individual Boiler) IWH Management
34 - 40 5 1 DHW Comfort Anti-cycling Time 0 - 120 (minutes) 60
34 - 40 5 2
DHW Start Delay 5 - 200 (0.5 to 20 seconds) 5
Anti “water hammering”
34 - 40 5 3 DHW Switch O Logic
0 = anti-scale (stop at > 144°F)
1 = + 7 °F /setting
0
34 - 40 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.
Default: 0 for TRX085, 120, 150, 199, 110C, 150C, 199C
Default: 1 for FTVN085, 110, 150, 199, 110C, 150C, 199C
34 - 40 5 5
CH Start Delay Following DHW 0 - 30 (minutes) 0
Setting is only applicable following a DHW demand from an Upstream IWH connected to the individual follower.
34 - 40 6 BOILER MANUAL SETTINGS
34 - 40
6 0 Manual mode activation 0 = OFF, 1 = ON 0
34 - 40 6 1
Boiler pump control 0 = OFF, 1 = ON 0
Set Parameter 260=1
34 - 40 6 2
Fan control 0 = OFF, 1 = ON 0
Set Parameter 260=1
34 - 40 6 3
3 way valve control 0 = DHW, 1 = Heating 0
Set Parameter 260=1
34 - 40 6 4 DHW Pump Control 0 = OFF, 1 = ON 0
34 - 40 7 TEST AND UTILITIES
34 - 40 7 0
Test Mode
TEST+ = Max Heating power
TEST+ = Max DHW power
TEST+
= Minimum power.
TEST Mode can also be activated by pressing the Reset button for 10 seconds. Test Mode deactivates after 30 minutes or
by pressing Reset.
34 - 40 7 1
Air-purge cycle 0 = OFF, 1 = ON
See First Ignition section.
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