Honeywell VS8510 Manual page 4

VS8510/VS8520 MILLIVOLT COMBINATION GAS CONTROL
Pressure Rating:
IAS rating to maximum 1/2 LB. PSI inlet pressure.
Electrical Ratings:
• 30 mV power unit resets with a maximum of 300mA
applied and dropout between 250mA and 70mA.
• 750mV power unit resets with a maximum of 15mA
applied and drop out between 7mA and 3mA.
Inlet and Outlet Connections:
• Inlet and outlet on side.
• Inlet and Outlet on bottom.
• Inlet on side and outlet on bottom and on side.
• Inlet on bottom and outlet on side.
HI/LO REGULATOR
ADJUSTMENT
4-5/8
(118)
TOP
TO
THERMOSTAT
4-1/8 (104)
TO THERMOPILE
OUTLET
PRESSURE
TAP
TO THERMOSTAT
M12667
68-0203
PILOTSTAT KNOB
4-9/16
(117)
3-7/32
(81)
1-5/8 (41)
INLET
PRESSURE
TAP
1
15/16
(25) (24)
5/16 (7)
11/16 (17)
Fig. 1. VS8510/VS8520 Model dimensions.
Safety Valve Configurations:
• Safety valve and operator are powered by thermopile
(Q313)-vented.
• Safety valve is powered by fast dropout thermocouple
(Q335) and thermopile powers operator (Q313)-vented.
• Safety valve is powered by thermocouple in oxygen
depletion operator sensor (OPS) –vent free.
Thermocouple Connection (for fast dropout configuration)
• Connection size: 11/32-32 UNS double lead.
• Available in side or bottom outlet.
Mounting:
Mounting support in eight locations on valve No. 10-24 screw.
Option M5X 0.8 screw; cored hole on diaphragm side accepts
#10-24 screw.
Dimensions
See Figure 2 for the dimensions of the VS8510/VS8520
Models.
MOUNTING
MOUNTING
SCREW
SCREW
SIZE 10-24 SIZE 10-24
M5X0.8
1-49/64 (45)
2-7/32 (57)
BOTTOM
5-1/32 (128)
BOTTOM THERMOCOUPLE CONNECTION
BOTTOM BOTTOM
INLET
OUTLET
BOTTOM
17/32
PILOT
(14)
OUTLET
1-1/8 (28)
2-9/16 (65)
4
SIDE
OUTLET
SIDE PILOT
OUTLET
1-11/32
(34) 13/16
17/32
(20)
(13)
5/16 (7)
25/64
(10)
WINDOW
SIDE
THERMOCOUPLE
CONNECTION
SIDE
OUTLET
1-1/4
(32)
15/16 (24)
1-29/32 (48)
ECO
1-3/16
(30)