Camus Hydronics Valiant FT VA0080, Manual, Page: 5 / 79

3.3.2 Low Air Switch .................................................................................................................... 15
3.4 COMBUSTION AIR BLOWER ........................................................................................................... 16
3.5 BURNER ................................................................................................................................................ 16
3.6 SPARK IGNITER .................................................................................................................................. 16
3.7 FLAME SENSOR
................................................................................................................................. 16
4.0 OPERATION AND START-UP ............................................................................................................... 17
4.1 SEQUENCE OF OPERATION ........................................................................................................... 17
4.2 FIELD START-UP PROCEDURE ...................................................................................................... 17
4.3 NATURAL GAS COMBUSTION VALUES
...................................................................................... 18
4.4 LP GAS COMBUSTION VALUES ..................................................................................................... 18
4.5 CONVERSION PROCEDURE FOR NATURAL GAS TO PROPANE GAS ............................... 18
4.6 HIGH ALTITUDE .................................................................................................................................. 19
5.0 CONTROLS ............................................................................................................................................... 19
5.1 VALIANT FT CONTROL ..................................................................................................................... 19
5.1.1 Levels of Access ................................................................................................................. 19
5.1.2 Control Board Connections .............................................................................................. 20
5.2 HMI TOUCHSCREEN INTERFACE .................................................................................................. 20
5.3 DIGITAL DISPLAY
............................................................................................................................... 20
5.4 CENTRAL HEAT PROGRAMMING INSTRUCTIONS ................................................................... 21
5.4.1 CH Mode 0: Fixed Setpoint Operation
.............................................................................. 22
5.4.2 CH Mode 1: Outdoor Reset Operation with Thermostat Control .................................. 23
5.4.3 CH Mode 2: Full Outdoor Reset Operation ...................................................................... 25
5.4.4 CH Mode 3: Permanent Heat Demand Operation ........................................................... 25
5.4.5 CH Mode 4: Analog Input Operation – Setpoint (0-10Vdc Signal) ................................ 25
5.4.6 CH Mode 5: Analog Input Operation – Power Output (0-10Vdc Signal) ....................... 25
5.5 DHW PROGRAMMING INSTRUCTIONS ........................................................................................ 26
5.5.1 DHW Mode 0: No domestic hot water .............................................................................. 26
5.5.2 DHW Mode 1: Storage with sensor ................................................................................... 26
5.5.3 DHW Mode 2: Storage with thermostat ............................................................................ 27
5.5.4 DHW Mode 3: Instantaneous water heating with plated heat exchanger, flow switch
and DHW-out sensor ............................................................................................................................... 27
5.5.5 DHW Mode 4: Instantaneous water heating with plated heat exchanger and DHW-out
sensor. ...................................................................................................................................................... 27
5.6 SAFETY AND SYSTEM FUNCTIONS .............................................................................................. 28
5.6.1 On-board Physical Lockout Reset
.................................................................................... 28
5.6.2 Flame Detection .................................................................................................................. 29
5.6.3 Flame recovery ................................................................................................................... 29
5.6.4 Freeze Protection ................................................................................................................ 29
5.6.5 Flue temperature protection .............................................................................................. 29