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Velux TFF 400 0201 User Manual

Velux TFF 400 0201
56 pages
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TFF 200/300/400 0201
VAS 451890 - 0207
Warning to the user
a. Do not remove or adjust any component part of this unvented water heater. Contact the installer.
b. If this unvented water heater develops a fault, such as a flow of hot water from the discharge pipe, switch the heater o
and contact the installer.
Warning to the installer
a. This installation is subject to Building Regulation approval. Notify the Local Authority of an intention to install.
b. Use only manufacturer’s recommended replacement parts.
c. Installed by:
Name:
Address:
Phone no.:
Completion date:
Directions for use

Table of Contents

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Velux TFF 400 0201 Specifications

General IconGeneral
BrandVelux
ModelTFF 400 0201
CategoryWater Heater
LanguageEnglish

Summary

Directions for Use

Warning to the User

Important safety warnings and actions for users of the unvented water heater.

Warning to the Installer

Key warnings and regulatory requirements for installers of the water heater.

SECTION I: TANK INSTALLATION

Safety Instructions

Essential safety guidelines for installing the VELUX storage tank.

Storing

Instructions for storing the VELUX solar hot water unit before installation.

Installation

Comprehensive guide for installing the VELUX storage tank.

Components Check List

Verify all required components are present before commencing installation.

Connection Diagram Cold Water

Schematic illustrating cold water connections according to BS7206.

Tank Connection Points

Diagram showing various connection points on the VELUX storage tank.

Discharge Pipework

Guidelines for safe and compliant installation of discharge pipework.

Sizing of Copper Discharge Pipe 'D2'

Table for sizing discharge pipe D2 based on relief valve outlet and resistance.

Worked Example

Illustrative example for calculating appropriate discharge pipe size.

Motorised Valves

Instructions for the operation and setting of motorised valves.

Dual Thermostat

Diagram showing the connection of the dual thermostat for temperature control.

Specification

Detailed specifications for the ITD Dual Thermostat.

Commissioning

Procedure for initial filling and commissioning of the VELUX unit.

Anode and Water Quality

Maintenance requirements for the magnesium anode and water quality.

Electrical Heating Element

Guidelines for connecting and installing electrical heating elements.

Warranty Conditions

Details on the warranty coverage for the VELUX storage tank.

Service

Key points for servicing and maintenance of the VELUX unit.

Spare Parts

List of available spare parts for the VELUX solar hot water system.

Maintenance

Essential requirements for maintaining the VELUX solar hot water unit.

Check Operation of Safety Valves

Procedure for checking the operation of safety valves.

Draining the VELUX Unit

Step-by-step guide for draining the VELUX hot water unit.

Descaling Immersion Heater

Instructions for descaling the immersion heater elements.

Refilling System

Procedure for refilling the system after maintenance or draining.

Log Book

Importance of filling and keeping the log book for maintenance records.

Specifications

Table of technical specifications for the VELUX TFF series.

Specifications (continuation)

Further technical data including flow rates, pressures, and dimensions.

SECTION II: SOLAR PUMP STATION

Safety Instructions

Essential safety guidelines for installation and use of the pump station.

Dimensions, Components

Diagrams and dimensions of the solar pump station and its components.

Technical Specifications

Key technical specifications for the solar pump station.

Function of the Gravity Brakes

Explanation of how the gravity brakes function in the pump station.

Fill/Drain Fitting

Instructions for using the fill and drain fitting on the pump station.

Flow Indicator

How to read and interpret the flow indicator on the pump station.

Air Jet

Procedure for manual venting of residual air via the air jet.

Connection Nozzle

Details on connecting temperature sensors via the immersion sleeve.

Connecting the Valve Coupling for Membrane Expansion Vessels

Diagram for connecting the valve coupling to expansion vessels.

Solar Control/Electric Installation

Guidelines for electrical installation of the solar control unit.

Maintenance

Steps required for performing maintenance on the solar pump station.

List of Spare Parts

List of spare parts available for the solar pump station.

Pump Description

Description of the WILO pump and its performance characteristics.

Safety Precautions for the Operator

Safety precautions for operators of the solar pump station.

System Filling and Venting

Procedure for filling and venting the solar pump station system.

SECTION III: SOLAR CONTROL SYSTEM

Security Devices

Technical rules and standards related to security devices.

Technical Data and Function Survey

Overview of the universal system controller's functions and technical data.

Installation

Step-by-step guide for mounting the solar controller unit.

Electrical Wiring

Detailed instructions for electrical wiring of the solar controller.

Allocation of Clamps

Diagrams for clamp allocation for various system configurations (ARR 1-9).

Operation and Function

How to use the controller's push buttons for adjustment and navigation.

System Monitoring Display

Understanding the controller's display for channel indication and system status.

Blinking Codes

Meaning of blinking codes shown on the system screen.

Commissioning

Steps for initial setup, language, and system scheme selection.

Controller Parameter and Indication Channels

Guide to controller channels for parameters, indications, and settings.

Tips for Fault Localization

Troubleshooting guide for identifying and resolving controller faults.

Accessories / Spare Parts

List of accessories and spare parts for the solar control system.

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