20
Figure 28: Valiant FT Controller
5.1.2 Control Board Connections
Connector Connector Description
J1
Main Power Supply
J2
Protective Earth (Ground)
J3
Pumps, Valves, Alarm Outputs
J4
Blower Main, PWM Signal
J5
Gas Valve
J6
Sensor Inputs, Remote Display
J7
Air Pressure Switches, PWM Pump
speed control
J8
AL-bus Cascade DM
J9
0-10V Input, 24VDC Room
Thermostat Contact
J10
24V Stepper Valve
J11
LWCO Inputs
J12
Safety Limit, Air Damper Switch,
Supply sensor
Table 16: Valiant FT Control Board Connections
5.2
HMI TOUCHSCREEN INTERFACE
Figure 29: Valiant FT Touchscreen
The HMI Touchscreen Interface is a 7 inch graphical touch
screen. This display provides the ability to change setpoints
over various modes of operation (Central Heating, DHW,
Outdoor Curve Reset, etc.). The modes themselves can
also be changed. This interface also provides visual graphs
illustrating the various temperature points over a certain
period of time. This interface allows for overall appliance
monitoring, including all sensors, cycle count, burner run
time, firing rate, fan speed, flame signal, alarm reporting,
and manual firing rate control during product
commissioning.
It is used in combination with the 990MN control and the
990PB digital display.
5.3
DIGITAL DISPLAY
Figure 30: Valiant FT Digital Display
The Valiant FT digital display, mounted on the inside of
the unit gives additional access to change the parameters
such as enabling/disabling sensors, changing boiler
cascade settings, ignition points, etc. These parameters
should not be changed in any case unless otherwise
specified in this manual.
Figure 31: Valiant FT Digital Display Push-Buttons
Button
Function
RESET
Reset Lockout error
MENU
Enter the main menu
ESC
Return to the Status overview
LEFT
Return to previous menu item or Status
overview
RIGHT
Enter a menu item or confirm selection in
Status overview (when directly setting Actual
setpoint or DHW setpoint)
ENTER
Confirm a setting or enter a menu item
UP
Directly select Actual setpoint of DHW
setpoint in the Status overview, push RIGHT
to confirm and use UP or DOWN to adjust
value.
DOWN
Directly select Actual setpoint of DHW
setpoint in the Status overview, push RIGHT
to confirm and use UP or DOWN to adjust
value.
Table 17: Valiant FT Digital Display Push-Button functions
The 8-button digital display is provided on the inside of the
front door. This interface provides service technicians’
additional parameters to configure if and when needed.
Summary of Contents for Valiant FT VA0080
Page 2: ......
Page 7: ......
Page 61: ...54 9 0 PIPING DIAGRAMS Figure 40 Single Boiler Hydronic Heating Zoned Piping...
Page 62: ...55 Figure 41 Multiple Boiler Hydronic Heating Zoned Piping...
Page 63: ...56 10 0 PARTS LIST...
Page 64: ...57...
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Page 73: ...66 11 0 WIRING DIAGRAM...
Page 74: ...67 12 0 TUBING DIAGRAM...
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Page 78: ...71 NOTES...
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