NTI TRX085 - Page 77

77
TRX Series II - Installation - Startup - Maintenance Instructions
To navigate the DHW Setup menu proceed as follows:
1. From the Tech Menu, turn the dial to highlight “DHW Setup” and press ENTER.
2. Scroll to the option you wish to select and press ENTER; repeat for subsequent menus as
necessary.
3. Scroll to the parameter to be adjusted/viewed and press ENTER.
4. Modify the setting by turning the dial, press ENTER to save the value. Note: pressing ESC exits
the screen without saving the new value.
5. Press ESC to return to the previous screen.
Turn the dial to modify
Turn the dial to modify
2. DHW setup
Table 36 - Tech Menu - DHW Setup Menu
Figure 93 - Tech Menu
DHW Setup
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Tech Menu
CH setup
DHW setup
Cascade Setup
Restore/Backup
BMS Control
DHW Setup
DHW Mode
DHW Setpoint
Advanced Settings
DHW Setup
DHW Mode
DHW Setpoint 140
Advanced Settings
DHW Mode
DHW Setpoint
Advanced settings
Advanced Settings
Tank On Differential
Modulation Setpoint 179
45
100
DHW Max Power
DHW/CH Shifting Priority Time
0
DHW Mode
Combi
Maximum value
Minimum value
2
0
140 °F
DHW Setpoint (Comfort)
Maximum value
Minimum value
140 °F
97 ° F
DHW Setup
0
Menu Option | Description (Range) Default
DHW MODE (2.2.8)
Determines the boiler DHW conguration:
Combi (0) – reserved for a Combi model with internal brazed plate
heat exchanger and ow meter/switch.
Tanks Sensor (1) – boiler is expecting a temperature sensor reading
from an IWH.
Aquastat (2) – boiler is expecting an on/off switch input from an IWH.
No DHW (3) – equivalent to Aquastat (2) setting, but also turns on the CH
Forced Diverter Position (2.10.8 = 1)
0/2
DHW SETPOINT (2.0.0)
Combi Models – establishes the target temperature of the DHW exiting
the boiler. (97-140°F)
Non-Combi Models – establishes the target temperature of the DHW
tank (IWH). Setting is only applicable when DHW Mode is set to Tank
Sensor. (104-149°F).
124°F
ADVANCED SETTINGS
TANK ON DIFFERENTIAL (2.10.2)
Sets how much the DHW storage tank temperature can drop below
target before initiating a DHW demand. Only applicable with a non-
Combi boiler using a Tank Sensor. (0-36°F)
0 °F
MODULATION SETPOINT (2.10.1)
Provides a means to offset (+/-) the calculated reset boiler target
temperature up or down. (-25-25)
Note: the setting has no impact if AUTO Function (Outdoor Reset) is
disabled, or if Auto Slope Boost = On.
0
AUTO SLOPE BOOST (4.7.5)
Determines how long a CH or DHW demand can last before the priority
is switched. A value of 0 keeps the priority with DHW indefinitely. (0-
1440min)
45 min.
DHW MAX POWER (2.12.1)
Establishes the maximum power the burner will operate at for DHW
demands. (0-100%)
100%
CH FORCED DIVERTER POSITION (2.10.8)
When enabled, forces the 3-way valve to remain in the Central Heat position
under all operating conditions, i.e., both CH and DHW.
Off
Part 9 - Controls