ELECTRICAL GAS VALVES
The electrical gas valves are designed to shut off the flow of
either natural or LP gas to the appliances upon actuation of
the regulated release assembly. The valves are available in
sizes of 3/4 in., 1 in., 1 1/4 in., 1 1/2 in., 2 in., 2 1/2 in., and 3
in. The valve is held open by an energized solenoid and upon
system actuation, the switch contacts in the regulated release
assembly open, thus de-energizing the circuit to the gas valve
solenoid, causing the valve to close. Valves are available in 120
VAC and are UL Listed.
Part Max. Operating
No. Description Pressure
13707 3/4 in. Solenoid Gas Valve (ASCO) 25 psi (1.7 bar)
13708 1 in. Solenoid Gas Valve (ASCO) 25 psi (1.7 bar)
550360 1 1/4 in. Solenoid Gas Valve (ASCO) 25 psi (1.7 bar)
13709 1 1/2 in. Solenoid Gas Valve (ASCO) 25 psi (1.7 bar)
13710 2 in. Solenoid Gas Valve (ASCO) 25 psi (1.7 bar)
550363 2 1/2 in. Solenoid Gas Valve (ASCO) 5 psi (0.3 bar)
17643 3 in. Solenoid Gas Valve (ASCO) 5 psi (0.3 bar)
Flow Capacity BTU/HR, at 1 in. P.D.
(CFH) 0.64 SP GR
Pipe Size P.D. 1 in. WC 1000 BTU/ft
3
(inches) 0.64 SP GR Natural Gas
3/4 264.96 247,500
1 1091.01 1,119,000
1 1/4 1662.49 1,730,000
1 1/2 1818.35 1,900,000
2 3117.18 3,251,000
2 1/2 6078.49 5,821,000
3 7169.51 7,430,000
To calculate gas flow for other than 1 inch p.d.:
New cfh = (cfh at 1 inch) x u new p.d.
To calculate gas flow for other than 0.64 SP GR:
New cfh = (cfh at 0.64) x u 0.64
New SP GR
Valve A B
Size in. (mm) in. (mm)
3/4 in. 3 5/16 (81) 3 5/8 (92)
1 in. 5 (127) 6 27/32 (174)
1 1/4 in. 7 13/16 (198) 7 29/32 (201)
1 1/2 in. 5 (127) 5 19/32 (142)
2 in. 6 3/32 (155) 5 15/16 (151)
2 1/2 in. 7 13/16 (198) 7 29/32 (201)
3 in. 7 13/16 (198) 7 29/32 (201)
FIGURE 3-28
004210
MANUAL RESET RELAY
The Manual Reset Relay (Part No. 426151) is required when
using an electrical gas valve shut-off system. After the electric
gas valve has closed, either due to system actuation or power
failure, the valve cannot be re-opened, allowing gas to flow,
until the reset relay button is manually pressed, re-energizing
the circuit. The reset relay is available 120 VAC. The manual
reset relay is also recommended for electrical shut down.
FIGURE 3-29
000087
ELECTRICAL SWITCHES
The electrical switches are intended for use with electric gas
valves, alarms, contactors, lights, contractor supplied electric
power shut-off devices and other electrical devices that are
designed to shut off or turn on when the system is actuated.
Switches are available in kits: One Switch Kit (Part No. 423878),
Two Switch Kit (Part No. 423879), Three Switch Kit (Part No.
423880), and Four Switch Kit (Part No. 423881). Mounting
hardware and 24 in. (610 mm) long wire leads are provided with
each kit. A Two-Switch Assembly without wire leads (Part No.
436770) is also available. Each switch has a set of single-pole,
double-throw contacts rated at:
UL/cUL/CSA Rating ENEC Rating
250 VAC, 21A Resistive IE4T105µ Approved
250 VAC, 2 HP 250V, 21A Resistive
125 VAC, 1 HP 8A Motor Load
FIGURE 3-30
001612
SECTION 3 – SYSTEM COMPONENTS
UL EX3470 ULC EX3470
PAGE 3-10 REV. 11 2014-SEP-01
R-102 Restaurant Fire Suppression Manual
A
B
To Next Page
Loading...
Need help?
General