Velux 3FC F21 User Manual

VAS 453812-2019-11
KFX 210/211/212/213/214
KFC 210/220
For information on VELUX smoke ventilation, please contact your VELUX sales company:
Tel. 01592 778 225 (UK), Tel. 01 848 87 75 (IE)
SMOKE
VENTILATION
25-09-2014 07:44:14
Instructions for VELUX control
system for smoke ventilation
ENGLISH

Velux 3FC F21 Specifications

General

Brand	Velux
Model	3FC F21
Category	Control Systems
Language	English

Summary

Important Information and Safety Guidelines

Safety Precautions

General safety precautions and warnings for system usage and maintenance.

Installation Requirements

Requirements for installation by certified personnel and mains connection.

Maintenance and Service Guidelines

Procedures for system testing, inspection, and component checks.

Break-Glass Point KFK 100

Smoke Detector KFA 100

Motor Terminals and Connections

Motor Terminals for KFC 210

Connecting motors for KFC 210, max 4 windows.

Motor Terminals for KFC 220

Wiring Specifications and Cable Lengths

Maximum Cable Length and Cross-Section

Prescribed cable sizes and maximum lengths for motor connections.

Cable Specs for GGL/GGU Windows

Cable Specs for CSP Windows

Switch Settings and Configuration

Control Unit Operation and Signals

Break-Glass Point Operation

Indicator Diodes Explained

Comfort Ventilation Buttons

Back-up Batteries and Power Supply

Battery Installation and Monitoring

Installing battery holder and monitoring battery status.

Mains Connection Procedure

Status and Error Indications

Battery Status Indicators

Motor Errors

Indications for interrupted or short-circuited motor cables.

Smoke Detector Errors

Indications for interrupted or short-circuited smoke detector cables.

Break-Glass Point Errors

Indications for interrupted or short-circuited break-glass point cables.

Temperature Fuse Error

Alarm Active Indicator

Connected Control Units and Networking

Transmit Alarm Between KFC Units

Connecting multiple KFC control units to transmit alarms.

Transmit Error Indications Between Units

Linking control units to share error status indications.

Ventilation Switch Connection to Multiple Systems

Rain Sensor Connection to Multiple Systems

External System Alarm Input

Receiving alarms from a primary external control system.

Transmit Alarms/Errors Externally

Sending alarm or error signals to other external equipment.