Robertshaw 720 SERIES User Manual

INSTALLATION DATA
720 SERIES
HOT SURFACE IGNITION GAS VALVE
The Robertshaw® 720 series gas valves for use on hot surface ignion
systems are designed for a wide variety of applicaons. The 720 series
valves incorporate a manual valve, dual automac valves and a main
gas pressure regulator. Models for step-opening are also available.
720 valves have their pressure regulators factory pre-set at 3.5 W.C. for
natural gas. Uni-Kit models can be converted to L.P. by installing the
regulator conversion kit (included).
720 series valves feature wiring connecons, manual selector and
adjustments that are all easily accessible on top of the valve. With a
3-9/16” swing radius, the 720 series lends itself well to replacing many
O.E.M. valves. The 720 valves are mul-posion and can be mounted in
any posion (except upside down).
SPECIFICATIONS
Electrical Rangs .........................................................24 VAC, .5 amps
Pressure Regulator
Natural Gas ....................................................factory set at 3.5” W.C.
L.P. Gas..........................................................factory set at 11.0” W.C.
Ambient Temperature ......................................................-40° to 175°F
Maximum Inlet Pressure ......................................................... 1/2” PSI
REGULATION CAPACITIES
INSTALLATION INSTRUCTIONS
SIZE
MIN. MAX. MIN. MAX.
3/8” x 3/8” 15,000 175,000 15,000 437,000
1/2” x 3/8” 15,000 175,000 15,000 437,000
1/2” x 1/2” 15,000 200,000 15,000 500,000
1/2”x 3/4” 15,000 200,000 15,000 500,000
3/4” x 3/4” 15,000 200,000 15,000 500,000
NATURAL L.P.
TYPE GAS
CAUTION
THIS DEVICE SHOULD BE INSTALLED BY A QUALIFIED
TECHNICIAN WITH DUE REGARD FOR SAFETY AS IMPROPER
INSTALLATION COULD RESULT IN A HAZARDOUS CONDITION.
FOR YOUR SAFETY
IF YOU SMELL GAS: (A) turn o gas at line valve or meter, (B) open
windows, (C) do not touch electrical switches, (D) exnguish all open
ames, (E) immediately call your gas supplier from neighbors.
To avoid possible injury, re and
explosion, please read and follow
these precauons and all
instrucons on the appliance.
This bullen is intended as a
guide to qualied servicemen
installing or servicing Robertshaw
Controls. Repairs, adjustments
and servicing should be limited
to the operaons listed in this
bullen or on the appliance.
Turn o gas supply and electrical power to
equipment before servicing
PIPING
1. Check replacement valve for mulple outlets (side outlets). If it has
them, be sure all unused outlets are plugged using the sockets
provided.
2. Pipe or tubing must be clean and free of scale and dirt.
3. Make sure gas piping is pressure tested before control is connected.
High pressure can damage control causing a hazardous condion.
Do not subject control to more than 1/2 PSI, (14” W.C.) inlet
pressure.

Robertshaw 720 SERIES Specifications

General

Brand	Robertshaw
Model	720 SERIES
Category	Control Unit
Language	English