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 Oil Pump Controllers
Oil pump conrollers are installed to automatically start and stop pump mostr(s) in order to fill fuel day tanks for generators. Automatic level control is provided by start and stop float switch. A lead pump failure pilot light and a manual or automatic alternation selector switch is standard on the duplex units.
The completely assembled and wired controllers are factory tested before shipping. All components used in Tomatech oil pump controllers are CSA listed and UL approved.
Tomatech favors fuseless motor protection for easy field maintenance.
Standard Features included in Simplex-Duplex Oil Pump Controllers:
| Standard Features |
Simplex |
Duplex |
NEMA/CSA 1
enclosure ASA 61 grey |
1 |
1 |
Single pole circuit breaker(s)
c/w through the door operation * |
1 |
2 |
| Overload relay(s) * |
1 |
2 |
| Across-the-line contractor(s) (HP rated) |
1 |
2 |
| Controler fuse (1 phase)* |
1 |
1 |
| "Power On" white pilot light |
1 |
1 |
| "Run" green pilot light(s) |
1 |
2 |
| "Hand-Off-Auto" selector switch(es) |
1 |
2 |
| Provision to connect float switches (float swiches not included) |
2 |
3 |
| Lead pump failure pilot light, manual reset and lag pump start |
N/A |
1 |
| P1-Auto-P2 alternation selector switch |
N/A |
1 |
* Replaced by individual disconnect switches, thermomagnetic motor protectors and control transformer c/w secondary fuse (3 phase)
Optional Features Available (contact us for details):
Low and high level indications Various types of enclosure: NEMA/CSA 3R, NEMA/CSA 4... Pilot lights, buzzer and alarm contacts for different conditions such as overload, low level, high level... Momentary test button Heat sensor cut-out Provision for pump start by generator
Start-Up Instructions:
Check name plate rating of oil pump controller and compare with incoming voltage and motors ratings. Adjust overload relay setting to full moto current rating. Check that motor protector push actuator(s) is (are) in start position. Check that float switches are adjusted to the desired levels. Check that controller is properly connected to pump motor(s). Turn Hand-Off-Auto selector switch(es) to Off position. Switch main disconnect switch to On position. Turn Hand-Off-Auto selector switch(es) to Hand position. Pump motor(s) should start. Check motor(s) for proper rotation.
If all above checks out correctly, turn Hand-Off-Auto selector switch(es) to Auto position. Activate float switch(es) manually and test if pump(s) start and stop are at the desired level.
Sequence Of Operation:
SIMPLEX OIL pump controller
Once the level falls below the start pump level float switch, the pump motor is energized and the pump starts pumping fuel into the tank. Once the level reaches the high level float switch, the pump motor is de-energized and the pump stops.
DUPLEX OIL pump controller
Once the level falls below the start lead pump level float switch, the pump motor is energized and the lead pump starts pumping fuel into the tank. If the lead pump has failed and the level falls below the start lag pump level float switch, the "Lead pump failure" pilot light is truned on and the lag pump motor is energized so that the lag pump keeps pumping fuel into the fuel tank. In order to turn off the pilot light, the manual reset pushbutton must be pressed. Once the level reaches the stop all pumps level float switch, the pump motor(s) is(are) de-energized and the pump(s) stop(s). If the alternation selector switch is in the automatic position, the stop all pump level switch triggers the alternator and reverse the order of the lead and lag pumps.
Drawings
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