Product data
EN2R-9074 0612R1-NE
V4730C/V8730C/V4734C
1:1 Gas/Air Servo Regulated Gas Valves
Note: Photo shows valve with manual safety shutoff valve and
venturi installed.
CONTENTS
Application ..........................................................1
Features ..............................................................1
Specifications ......................................................2
Ordering Information.............................................3
Installation ..........................................................13
Electrical Connections ........................................14
Adjustments and Final Checkout ........................14
Operation ...........................................................15
Troubleshooting..................................................16
Service Information ............................................16
APPLICATION
The V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas
Valves, with the addition of the Venturi Mixing Unit (VMU) and dc
fan, are used for modulating premix appliances such as gas bur-
ners, gas boilers, rooftop units, makeup air units and process ap-
plications.
FEATURES
• Wide modulation range (14% to 100% of burner load).
• 24 Vac and 120 Vac models.
• Main valve body with two shutoff seats (double block valve).
• Closing time less than one second.
• Mesh screen (strainer) between inlet flange and main body.
• Various pressure tap points available at main body when no
additional valves or pressure switches are used.
• DIN 43650 Plug Connector with 36-in. (914 mm) leadwires
included.
• Flexible mounting positions of venturi manifold to fan.
• Replaceable pipe flange adapters available.
• Position indication lamp for each valve stage