9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Honeywell Millivolt Gas ValveFigure 4
O
N
O
F
F
P
I
L
O
T
L
O
H
I
OFF
ON
OFF
ON
Blower ON/OFF Rocker
Switch
SIT Millivolt Gas Valve
Gas
Outlet
Gas
Inlet
Pilot Adjustment
Screw
Terminals
TPTH,TP & TH
Figure 3
H
I
L
O
W
HT
PTHTPT
P
I
L
O
T
P
I
L
O
T
O
N
ti
O
F
F
IN OUT
OFF
ON
OFF
ON
HI/LO Variable
Flame Height
Adjustment
Manifold Pressure Tap Inlet Pressure Tap
Piezo Igniter
Main Gas
Control Knob
OFF/PILOT/ON
Piezo Igniter
Optional Burner ON/OFF
Rocker Switch
Piezo Igniter
Blower ON/OFF Rocker
Switch
Optional Burner ON/OFF
Rocker Switch
HI/LO Variable
Flame Height
Adjustment
Main Gas
Control Knob
OFF/PILOT/ON
Manifold Pressure
Tap Piezo Igniter Inlet Pressure Tap
Gas
Outlet
Gas
Inlet
Variable Flame Height Adjustment

All Millivolt appliances are equipped with a

variable gas control valve. Flame height for

these models may be adjusted through a range

between fixed low and high settings while the

appliance is in operation. Adjust the flame

height as desired after lighting the appliance by

rotating the variable adjustment control knob

(HI/LO) located on the front of the valve (refer

to Figure 3 or 4).