NTI FTVN - Page 70

70
Menu
Sub-Menu
Parameter
Description Value
Default
Setting
4 2 3
Parallel Shift of Reset Curve
-12 - +12 (when 4.2.0 = 0)
0
See K. Parallel Shift of Reset
Curve.
-25 - +25 (when 4.2.0 = 1)
When the Reset Curve results in a boiler target temperature that is too high or too low
(i.e., heats the building too quickly or slowly), Parallel Shift can be used to oset the
curve up or down to increase or decrease the boiler target temperature.
NOTE: Adjusting Parallel Shift is only possible when Auto Boost is OFF (4.7.5 = 0).
The Parallel Shift can be adjusted from the home screen using the CH + and - buttons
(Figure 57, Item 8).
With the rst press of the CH + or - button, the display shows the current CH target
temperature (e.g., 130
o
F).
After a 3-5 second delay, the display begins ashing the current oset (Parallel Shift)
setting. Subsequent CH + or - button presses adjusts the oset up or down.
After a few seconds the display shows the new CH target temperature (e.g., 138
o
F), then
returns to the home screen.
AUTO
1
4 2 4
Room Sensor Inuence 0 - 20
2 if Parameter 4.2.0 = 0
4 if Parameter 4.2.0 = 1
Adjusts the inuence of room temperature on target boiler temperature - a higher setting causes a greater increase to the boiler
target temperature as the indoor temperature drops below room setpoint. Only applicable when using an optional NTI Room
Sensor and when 4.2.1 = 2 or 4.
4 2 5
MAXIMUM Temperature Setting
86 - 179 °F 179 if Parameter 4.2.0 = 1
68 - 122 °F 120 if Parameter 4.2.0 = 0
4.2.5 sets the allowable boiler operating temperature range for Zone 1 heating, limiting Automatic Temperature Control and
manual adjustments from the User Menu.
4 2 6
MINIMUM Temperature Setting
86 - 179 °F 120 if Parameter 4.2.0 = 1
68 - 122 °F 80 if Parameter 4.2.0 = 0
4.2.6 sets the allowable boiler operating temperature range for Zone 1 heating, limiting Automatic Temperature Control and
manual adjustments from the User Menu.
4 3 ZONE 1 DIAGNOSTICS
4 3 0 Room Temperature Read only
Only applicable when using an
NTI room sensor
4 3 1 Room Temperature Setpoint Read only
4 3 4 Heat Call 0 = OFF, 1 = ON (Read only)
4 7 ZONE 1 REGULATION PARAMETERS
4 7 5 Auto Boost 0 = OFF, 1 = ON 0 See L. Auto Boost.
5 ZONE 2 PARAMETERS
5 0 ZONE 2 TEMPERATURE SETTINGS
5 0 0 Temperature Day 50 - 86 °F 66
Only applicable when using an
NTI room sensor
5 0 1 Temperature Night 32 - 86 °F 61
5 0 2 Fixed Temperature
86 - 179 °F 179 Parameter 5.2.0 = 1
68 - 122 °F 120 Parameter 5.2.0 = 0
5 0 3 Zone Freeze Protection Temperature 36 - 59 °F 41
Only applicable when using an
NTI room sensor - Changes all
zones
5 1 SUMMER/WINTER CHANGEOVER
5 1 0 S/W function activation 0 = OFF, 1 = ON 0
5 1 1 S/W temperature threshold 50 - 86 °F 68
5 1 2 S/W delay time 0 - 300 minutes 60
5 2 ZONE 2 SETTINGS
5 2 0 Temperature Range
0 = 68 - 122°F (low temperature)
1 = 86 - 179°F (high temperature)
1
Part 9 - Controls