In practice
A generator room fire system is usually designed by the project fire contractor, but the diesel generator package still needs clear interface points. The RFQ should state how emergency stop, fuel shutoff, ventilation dampers, alarms, and room exhaust fans will interact with the generator control panel.
Yangzhou Tesla Power Equipment Co., Ltd. should receive the room layout and interface notes early, especially when the generator is for a hospital, factory, data center, or other standby project where delayed shutdown logic can create handover problems.
Interfaces to define before production
- Emergency stop buttons inside and outside the generator room.
- Remote shutdown input from the fire alarm or building control system.
- Fuel solenoid valve, day tank valve, or transfer pump interlock requirements.
- Ventilation fan and motorized damper control responsibility.
- Alarm contacts for high temperature, overspeed, low oil pressure, and emergency stop status.
Where mistakes usually happen
- The generator room drawing shows dampers and fans, but the RFQ does not state who supplies the control wiring.
- A fire shutdown signal is requested after the control panel has already been built.
- Fuel isolation is described in words only, without valve voltage, signal type, or location.
Coordination table
| Interface | Generator supplier needs | Site team should confirm |
|---|---|---|
| Remote shutdown | Dry contact or powered signal requirement | Fire panel output type |
| Ventilation interlock | Start signal or running feedback | Fan starter and damper control scope |
| Fuel isolation | Valve voltage and normal position | Day tank and pipework arrangement |
| Alarm output | Required alarm list and contact rating | BMS or fire system input format |
Before requesting a quotation
Provide the generator room layout, fire alarm interface requirement, emergency stop locations, fuel system drawing, and any building control specification. Ask for a control wiring diagram and terminal schedule before approving production drawings.
Questions purchasers often ask
Should a diesel generator stop automatically during a fire alarm?
That depends on the project design and local authority requirement. Some standby systems must keep serving critical loads while other installations require a shutdown signal.
Who supplies the fire shutdown wiring?
The RFQ should define it clearly. The generator supplier may provide terminals and panel logic, while the site contractor often supplies external wiring and fire system devices.
Can ventilation fans be controlled by the generator panel?
They can be interlocked when the scope is defined. The quotation should state whether fan starters, dampers, and feedback signals are included.
What documents should be requested?
Request the generator control diagram, terminal schedule, emergency stop logic, fuel shutoff notes, and commissioning test checklist.
RFQ notes to include
For a clearer quotation, send the site country, voltage and frequency, duty rating, load list, installation layout, control interface requirements, noise or enclosure expectations, and any drawings already approved by the project engineer. Ask the supplier to state assumptions in writing so commercial comparison is based on the same scope.