NTI TRX085 - Page 82

82
420012001500 - 03182024 - Rev. 04
2. 3. 5 CH Anti-cycle Time
Mode
0 = Manual
1 = Automatic
1
2. 3. 6 CH Anti-cycle Time
(when 2.3.5 = 0)
0 - 7 (minutes) 3
2. 3. 7 Boiler Pump Overrun
(CH)
0 - 15 minutes or OC
(On Conti nuously)
3
2. 4 BOILER CH PARAMETERS  2
2. 4. 1 Warning pressure
1P4
da 5.8 a 11.6 psi 8.7
2. 4. 3 CH Fan Post-Purge 0 = OFF 2 minutes,
1 = ON5 minutes
1
2. 4. 4 CH Boost Delay 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
2 =Pressure Sensor
2
RESERVED FOR TECHNICAL ASSISTANCE
Only if the PCB is changed
2. 4. 9 Outdoor Temp
Correction
-5 - +5 (°F) 0
Only active with outdoor sensor connected
2. 5 DHW PARAMETERS
2. 5. 0 DHW comfort function 0 = Disabled
1 = Time Program
2 = Always Active
0 -
Combi
2 -
Boiler
TRX Non-Combi models set to 2
Always On = This is not changeable.
TRX Combi models set to 0
Deactivated = COMFORT function is not active.
TRX 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 0 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 = 3 minutes post-circulation and post-ventilation
after DHW draw-off if the boiler temperature
requires it.
ON = Always on for 3 minutes post-circulation and post-
ventilation after DHW draw-off.
2. 5. 5 CH Start Delay Following
DHW
0 - 30 (minutes) 0
2. 5. 7 Thermal Cleanse
Function
0 = OFF
1 = ON
0
TRX 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 Thermal Cleanse Cycle
frequency
24 - 720 (Hours),
or 30 days
30
days
TRX Non-Combi = Activated when the boiler is
connected to a tank by an NTC sensor (Parameter 228 = 1).
2. 6 BOILER MANUAL CONTROL
Only to test components
2. 6. 0 Manual Mode Activation 0 = OFF
1 = ON
0
2. 6. 1 Boiler pump control 0 = OFF,
1 = ON
0
Set Parameter 260=1
2. 6. 2 Fan control 0 = OFF,
1 = ON
0
Set Parameter 260=1
2. 6. 3 3 way valve control 0 = DHW,
1 = Heating
0
Set Parameter 260=1
2. 7 TEST & UTILITIES
2. 7. 0 Test Mode 0 = OFF
1 = ON
Test Mode deactivates after 30 minutes or by pressing
Reset.
2. 7. 1 Air-purge cycle 0 = OFF
1 = ON
See First Ignition section.
2. 7. 4 Floor drying cycle 0 = OFF
1 = Functional Heating
2 = Curing Heating
3 = Functional Heat. +
Curing Heat.
4 = Curing Heat. +
Functional Heat.
5 = Manual
0
2. 7. 5 Floor drying Flow Set.
Temp.
77 - 140°F 131
Menu
Sub-Menu
Parameter
Description Value
Default
Setting
Note
Menu
Sub-Menu
Parameter
Description Value
Default
Setting
Note
Part 9 - Controls