Bennett HIGH FLOW H35, Instruction Manual

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Installation
Bennett HF H35 Instruction Manual 23
BEGINNING THE WIRING PROCESS
IMPORTANT: Check your dispenser options prior to beginning the wiring process.
1. Locate the inlet wiring electrical conduits. Refer to the footprint diagram for inlet sizes and locations.
2. This product must be properly grounded. Each dispenser requires a 12-gauge stranded THHN earth ground wire. Refer to the
Instructions for Earth Grounding the Equipment section for detailed installation instructions.
3. The power wires will be terminated on the timer board located in the junction box. Refer to field wiring diagram for more information.
4. Remote audible and visual alarms must be terminated through the junction box directly onto the terminal strip 5 and 6 of the terminal
strip in the electronic enclosure.
5. The Ethernet Wire must be terminated directly to the PLC.
EARTH GROUNDING THE EQUIPMENT
WARNING: FAILURE TO PROPERLY GROUND THE EQUIPMENT CAN CAUSE INJURY OR DAMAGE TO THE EQUIPMENT AND WILL
VOID THE BENNETT LIMITED WARRANTY.
NOTE: Before installation ensure that protection against lighting strikes is in accordance with the American Petroleum
Institute Recommended Practice RP 2003,
Protection Against Ignitions Arising out of Static, Lightening, and Stray Currents .
Grounding provides a path of least resistance for electric current to reduce the risk of electric shock. Grounding is also required to protect
the dispenser’s computer from external electrical noise generating devices. The ground wire connection must provide 1 Ω (or less)
resistance to earth ground. To establish a good earth ground, follow this procedure:
1. Connect a 12-gauge (minimum), green stranded wire through the junction box to the grounding lug near the 819 Power Board.
2. Pull the wire through the rigid metal conduit and terminate the other end at the main electrical service panel ground bar. Note: Do
not terminate at the neutral bar of a sub-panel or rely on metal conduit for this ground connection . Do not rely on the metal conduit
as a ground. Do not use wire nuts on ground wires. Use compression connectors only.
3. Do not daisy-chain ground wires. All ground circuits must be dedicated wires connected directly to the ground bar in the main electrical
panel. A direct connection to the site’s ground rod must be connected to the ground bar in the main electrical panel.
4. Ensure that a 12-gauge minimum green ground wire is connected between the dispenser ground lug and the 819 Power Board TS1,
terminal 1. This wire must be connected for proper operation to occur.
AC POWER WIRING
WARNING: ALL DISPENSER AC POWER CIRCUITS MUST BE ON THE SAME PHASE OR DAMAGE WILL RESULT TO THE DISPENSER
POWER BOARD.
Each remote dispenser uses one 120V/60Hz or 240V/50Hz circuit for dispenser power. Make sure the power source has the correct
frequency and voltage. Connect the electrical circuit to the terminal strip on the 819 Power Board.
All references to 120VAC in this manual can also be identified as 240VAC if the dispenser ordered is for 240VAC. Hot for electronic power
is 120VAC except for export codes, which are 240VAC.
RULES TO ENSURE PROPER OPERATION
1. Each remote dispenser uses one 120V/60 Hz or 240V/50 Hz circuit for dispenser power. Put no more than two (2) Hydrogen
dispensers on a circuit breaker for Electronic Power.
2. Do not connect any other devices or motors to these circuits.
3. Use only 14-gauge stranded gas and oil resistant THHN wire.
4. Do not use wire nuts within the dispenser or the wire run from the breaker panel to the dispenser.