STjh FFU group panel with reduced-speed selector, audible buzzer and three-color alarm beacon

STJH-FFU-GROUP-PANEL-NIGHT-ALARM

FFU Group Control Panel Filter Alarm and Night Mode

A grouped FFU panel adding filter alarms and reduced-duty night operation.

Audible and visible filter alarm
Reduced-speed night mode
External 24 V controls

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Product Introduction

This external control panel adds audible and visible filter alarms plus a reduced-speed night mode to basic FFU grouping. The 24 V control basis is intended for continuously operated cleanrooms that can reduce airflow during unoccupied periods but still need clear maintenance indication. It differs from the five-circuit panel through alarm and operating-mode functions.

Key Features

Maintenance indication

Two alarm channels provide both visual and audible notice of filter condition.

Unoccupied setback

Night mode reduces FFU duty without relying on manual fan-by-fan adjustment.

Accessible interface

External mounting keeps status and mode selection outside the clean space.

Technical Parameters

Control Voltage	24 V
Alarm Type	Audible and visible
Alarm Duty	Filter condition indication
Night Mode	Reduced FFU duty
Mounting	External
Control Scope	Grouped FFUs
Operating Period	Continuous rooms with unoccupied setback
User Interface	Local mode and alarm panel
Connected Equipment	Compatible FFU group system
Customization	Available based on the intended application and operating environment.

Applications

Recommended for cleanrooms that operate continuously but permit lower airflow when unoccupied. Night settings must preserve the required pressure and recovery time.

Solutions for Your Application

Filter condition is missed until airflow visibly declines.Use audible and visible alarm outputs to prompt inspection.

Fans remain at daytime duty through empty periods.Apply reduced-speed night mode within the room's validated operating limits.

Available Options

Define FFU group size, alarm reset, night speed, schedule interface and enclosure location. Confirm pressure retention at the reduced setting.

Planning a FFU Group Control Panel Filter Alarm and Night Mode specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

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