Sit 820 Nova Mv Gas Control Valve - Country Flame Bayvue DV 30 Owner's Manual

SIT 820 NOVA mV GAS CONTROL VALVE

The 820 Gas Control Valve is shown below in FIGURE 27.
1. The left knob controls the ON/PILOT/OFF functions.
2. The right knob controls the manifold pressure to the burners and is labeled HI/LO.
3. There is a PILOT ADJSUT screw that should only be adjusted by a certified technician.
4. The SIT 820 has an input pressure test port labeled IN.
5. The SIT 820 has an output pressure test port labeled OUT.
To use either of the pressure test ports to measure pressure requires test equipment and knowledge required
by a certified service technician. Improperly adjusting the pilot adjust or the manifold pressure can cause
damage to the SIT 820 control valve and should only be accomplished by a certified professional. For
lighting instructions refer to the section on first fire in this manual or on the units control panel.
IN
FIGURE 27: SIT 820 mV NOVA GAS VALVE
NOTE: TP stands for thermopile, TH for thermostat, and TP TH for thermopile and thermostat. See
FIGURE 28.
ON
OFF
IN OUT
SIT 820 mV CONTROL VALVE
FIGURE 28: SIT 820 mV NOVA GAS VALVE WIRING DIAGRAM
Version 1.0h
ON
OFF
OUT
1/16" to 1/8"
PILOT BURNER
IGNITER
THERMOPILE
PILOT
ADJ
TH
TP
TP TH
OPTIONAL (millivolt)
THERMOSTAT
40
PILOT
ADJ
THERMOCOUPLE
PIEZOELECTRIC
IGNITER
ON/OFF SWITCH
THERMOSTAT
TERMINAL BLOCK
ON
OPTIONAL (millivolt)
REMOTE SENDER
OPTIONAL (millivolt)
REMOTE RECEIVER
OFF