Elkhart Brass SPIT-FIRE 8394053 Monitor - Manual (Page 7)

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2.1. Install Nozzle on outlet of monitor Stream Shaper (Model #284-B). Position nozzle so that
motor is located on top of nozzle or to the left side as seen from monitor end. Tighten the
Stream Shaper to Monitor with spanner wrench. Then tighten nozzle swivel base to
Stream Shaper.
2.2. Install cable plug to receptacle on nozzle motor, aligning locator key in plug with key in
receptacle. Screw swivel down tight on male thread of receptacle.
3. Motor Control Box (MMCB) Installation
3.1. This enclosure should be located 100 feet maximum distance to the Monitor Junction Box.
3.2. The enclosure to be installed a minimum of three feet above grade and in the vertical
position, on a rigid structure. Installation is normally at the base of the riser.
4. Control Box Installation
4.1. If used for a local control the single monitor control box is to be mounted on a rigid stand,
approximately 3 to 4 feet above grade so operator can visually see monitor and nozzle
when operating controls. The 1-Monitor Control Box weighs approximately 32 lbs.
4.2. This enclosure has four mounting pads with 0.31inch diameter holes. Mounting hole
centers are 10 inches horizontal x 12 ¾ inches vertical.
B. Interconnecting & Wiring Control System
1. Motor Control Box (MMCB) to Monitor Junction Box
1.1. Install conduit between Motor Control Box and Junction Box, located at flanged base of
monitor. Junction boxes are provided with 1½” NPT Conduit Hubs.
1.2. If water valve is not installed at base of monitor, ten conductors are required.
1.3. Reference guide for wire size:
18 – AWG wire for up to 40 feet from monitor.
16 – AWG wire for up to 80 feet from monitor.
14 – AWG wire for up to 100 feet from monitor.
1.4. If water valve is provided at base of monitor, fourteen conductors are typically required.
Wire size to be determined by length of conductors and current draw of valve operator
supplied.
WARNING!!! If water valve operator is provided and has arching devices in its
enclosure, an explosion proof seal fitting must be provided at valve operator conduit connection when
used in a hazardous location. This will seal the flame path between water valve and junction box.
This must be done to maintain certification of Motor Control Box.
2. Control Box to Motor Control Box
2.1. Install conduit between Motor Control Box (MMCB) and 1-Monitor Control Box.
2.2. A minimum of 10 conductors is required per monitor.
2.3. Wire size recommended for distance as follows:
18 – AWG wire for cable run up to 750 feet (0.47 voltage drop at 750 feet)
16 – AWG wire for cable run up to 1500 feet (0.48 voltage drop at 1500 feet)
14 – AWG wire for cable run up to 2500 feet (0.50 voltage drop at 2500 feet)
12 – AWG wire for cable run up to 3500 feet (0.43 voltage drop at 3500 feet)