18
PART 5 CONTROLS
5.1
VALIANT FT CONTROL
The Valiant FT Series 2 utilizes the SOLA control. This
control includes the main board mounted inside the control
panel and an HMI touchscreen mounted at the front.
5.1.1 Levels of Access
The control has an access code which restricts critical
parameters from being restricted to ensure safe and
efficient operation of the boiler.
➢
User
–
Access to general parameters, display settings
and adjustments to the setpoint. No code is required for
this level.
➢
Installer
–
Access to additional parameters to allow for
ease of startup and serviceability. This level is unlocked
by entering the correct code into the control.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation.
Figure 32: Valiant FT Series II Controller
5.1.2 Control Board Connections
Table 13: Valiant FT Series II Control Board
Connections
Connector
Connector Description
J1
Flame Sensor, Ground
J3
Display, Lead Lag, Modbus Comm.
J4
24VAC Power, Pump, VFD
J5
Gas Valve, Interlock
J6
Safety Annunciation, Alarm, LCI
J8
24VAC Power, Inlet, Outlet Sensor
J9
DHW, Stack Sensor
5.2
HMI TOUCHSCREEN INTERFACE
Figure 33: Valiant FT Series II 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.
Figure 34: Valiant FT Series II Control Panel
Control Panel Terminal Blocks
The control panel has terminal blocks for sensors and
output terminals for additional components.
REMOTE/LOCAL SWITCH
The local remote switch mounted inside the control box is
designed to deliver an enable signal either relying on an
external contact closure (Remote) or enabling the boiler
locally (Local). When Remote is selected via the DPDT
switch, the Remote Operator contacts must close to deliver
an enable signal. When Local is selected via the DPDT
switch, a constant enable signal is present. When
troubleshooting the Valiant FT Series II, it is recommended
to switch to Local mode.
IGNITION MODULE LOCKOUT FUNCTIONS
The Valiant FT Controller may lockout in either a manual
reset condition requiring pushing the reset button to recycle
the control for a CSD1 requirement or an automatic reset
condition. Pushing the “OK” with the control in a hard
lockout condition is the only way to reset the Valiant FT
Controller. Turning the main power “OFF” and then “ON” or
cycling the thermostat will not reset a hard lockout
condition. Wait until the display has synchronized before
pushing the “OK” button to clear a manual reset condition.
The Valiant FT controller may proceed into a soft lockout
condition. The boiler will stay in the automatic reset state
Содержание Valiant-FT II Series
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