Bennett HIGH FLOW H35, Instruction Manual

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Installation
Bennett HF H35 Instruction Manual 26
DISPENSER START-UP
DANGER: FIRE, EXPLOSION, INJURY OR DEATH WILL OCCUR IF FUEL VAPORS ARE PRESENT. MAKE SURE THERE ARE NO
HAZARDOUS GASES PRESENT BEFORE STARTING THIS PROCEDURE.
CAUTION: TO PREVENT DAMAGE TO THE DISPENSER, FOLLOW THE PROPER START-UP PROCEDURES.
BEFORE APPLYING AC POWER TO THE DISPENSER, FOLLOW THIS PROCEDURE:
1. Open the upper and lower cabinet doors using the keys that were shipped with the unit.
2. Check to make sure:
•
The boards and other components have not come loose.
•
LCD display boards are not cracked or damaged.
•
The cables are properly connected to the boards.
•
All electronic connections are secure to the PLC.
•
There are no torn cables or stranded harnesses.
•
Pump handle harnesses are properly connected to the nozzle boots.
•
Both leads to the 12-volt battery are attached.
•
Put the AC switch in the OFF position.
3. Verify that the inlet shut off valves are closed.
4. Turn off all compressor circuit breakers and all other circuit breakers to the dispenser.
a. Make sure the 12-gauge green ground wire is properly terminated in the junction box and in the dispenser ground terminal. This
ground connection must measure 1 ohm (or less) resistance to earth ground at the junction box.
b. Prior to using a compression fitting to tie the Ground and Neutral to the dispenser measure the ground resistance using an Ohm
meter connected between the Green ground and the Neutral wire in the junction box.
Note: This measurement method only
works on 115VAC circuits. It will not work on 230VAC circuit.
c. Make sure all the screws on the terminal strip are tight and that the terminal strip is fully pressed onto the circuit board and
snapped in place.
d. Make sure the wiring (AC and DC) agrees with the wiring diagrams.
TURN ON 115 VOLTS CIRCUIT BREAKER TO SUPPLY AC ELECTRONIC POWER TO THE UNIT:
1. Use a voltmeter to verify 115 Volts AC on TS1 on the 819 Power Board. Terminal 2 is Neutral. This AC circuit provides power to the
electronic boards. Use a voltmeter to verify there is NO AC power on any other terminals or wires at this point.
2. Turn on the switch on the Power Board and make sure displays are operating normally. To charge the battery the “override” button
on the Timer Board, the override button must be pressed and held for a few seconds until the battery is charged. Once the battery
begins to charge release the override button.
TESTING FOR LEAKS
Once the dispenser is mounted and anchored onto the island, it is important to check all fittings prior to testing them for leaks.
1. Follow these steps to test the dispenser for leaks:
a. Spray a leak detection solution on all fittings in the dispensers Hydraulics. This includes all field connections.
b. Pressurize the lines to 0.689 MPa (100 psi) for five minutes.
c. Pressurize the lines to 6.89 MPa (1,000 psi) for five minutes.
d. Pressurize the lines to 20.6 MPa (3,000 psi) for five minutes.
e. For H35 hydrogen, pressurize the lines to 41 MPa (5,950 psi) for five minutes.
2. If maximum pressure is greater than 41 MPa (5,950 psi), then pressurize the lines to normal pressure and watch for leaks for five
minutes.
3. If at any time there is evidence of a leak then remove pressure from the lines, repair any leaks present and restart the test from the
beginning.