Elmdene 7422-sfg-g3f Manual Site
The G3F variant includes intelligent battery charging:
The unit requires a 230V AC mains feed. Inside the enclosure, you will find a terminal block for Live (L), Neutral (N), and Earth (E).
The Elmdene 7422-SFG-G3F manual is strict about installation order. Failure to follow this can void the warranty. elmdene 7422-sfg-g3f manual
When the input is activated (e.g., fire zone goes into alarm), the output relay energises immediately (or after SW1-4 delay). When the input restores, the output de-energises automatically.
The manual opens with a critical specifications table. Before installation, verify these against your system requirements: The G3F variant includes intelligent battery charging: The
| Parameter | Value | | :--- | :--- | | Input Voltage | 230V AC ±10% (50/60 Hz) | | Output Voltage (Nominal) | 13.8V DC (float charge) | | Output Current (Continuous) | 3A | | Current (Intermittent/Peak) | 4.5A (for 5 minutes, door strikes) | | Ripple & Noise | < 50mV peak-to-peak | | Battery Charging Capability | 7Ah (12V lead-acid or gel) – Up to 12Ah with derating | | Operating Temperature | -10°C to +50°C | | Enclosure Type | IP30 (Indoor use only) | | Fuse Ratings | Primary: T1.6A L (slow blow); Output: Glass 3.15A; Battery: Glass 3.15A |
Expert note from the manual: Do not exceed a 7Ah battery if the unit is mounted in a high ambient temperature above 40°C, as this reduces battery life and risks thermal shutdown. Failure to follow this can void the warranty
The terminal block (rising cage clamp, accepts 0.5mm² – 2.5mm² wire) is arranged as follows:
| Terminal | Label | Purpose | |----------|-------------|-------------------------------------------------------------| | 1 | IN + | Positive input from fire alarm zone (voltage-free or 24V DC)| | 2 | IN - | Negative input / common reference | | 3 | EOL | End-of-line resistor connection point (if used for monitoring) | | 4 | NC (Output) | Relay Normally Closed (de-energised state) | | 5 | COM (Output)| Relay Common | | 6 | NO (Output) | Relay Normally Open (energised when input active) | | 7 | FLT NC | Fault relay NC (closed on healthy unit) | | 8 | FLT COM | Fault relay common | | 9 | FLT NO | Fault relay NO (closed on fault) | | 10 | +24V DC | Auxiliary power supply input (18-30V DC) | | 11 | 0V | Power supply negative / ground |
Important: The unit requires external 24V DC power (e.g., from fire panel auxiliary output). Do not rely solely on input loop current.