Instructions for Use
To b e l e f t w i t h t h e u s e r
Clearly Solar System
including
Fluropro
Solar Differential Controller
www.glow-worm.co.uk
1
WARNINGS
SAFETY
The fluropro must be installed by a competent person, who is responsible for adhering to
the existing standards and regulations.
ALTERATIONS
Under no circumstances should you ever attempt to make alterations to these
components or any other part of the system
SEALED COMPONENTS
Under no circumstances must the user interfere with or adjust sealed parts.
IMPORTANT
Danger of death by electric shock! All live parts of the system may be installed, serviced and repaired only by a competent person. Risk of overvoltage! Earth the solar circuit as potential equalisation and protection against overvoltage! Attach earthing pipe clips to the solar circuit pipes and connect the clips to a potential rail with a 16mm2 copper cable.
Glow-worm service call: 01773 596510 Technical helpline: 01773 828300
General and Sales enquiries Tel: 01773 824639 Fax: 01773 820569
Glow-worm is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry
Council. For more information visit www.centralheating.co.uk
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Important Information
Documents
Please retain these user instructions and all related documents in a safe place for future reference.
If you vacate the premises in which this system is installed, please give the documents to the new owner.
Testing and Certification
These products are tested and certificated for safety and performance. It is therefore, important that no alteration is made to the products, without permission, in writing, by
Glow-worm.
CE Mark
The CE mark on the Fluropro solar control and Flurocyl twin coil cylinder indicates that these products comply with the basic requirements of the applicable directives.
General Note
Servicing/maintenance should be carried out by a competent person in accordance with the rules in force in the countries of destination.
Servicing
To ensure the continued efficient and safe operation of the product it is recommended that it is checked and serviced at regular intervals. The frequency of servicing will depend upon the site conditions and usage, but in general, once a year should be enough.
To obtain service, please call your installer or Glow-worm’s own service organisation using the telephone number on the inside front cover of this booklet.
Cleaning
The Fluropro and Flurocyl can be cleaned using a mild liquid detergent with a damp cloth.
Do not use any form of abrasive or solvent cleaner as you may damage the surfaces.
Recycling
These products comprises many recyclable parts.
The packaging and the content of the package shall not be disposed of with general domestic waste but according to the current regulations.
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Contents |
|
Description |
Page |
System Design |
6 |
System Functions |
7 |
Control Functions |
9 |
User Instructions |
10 |
User Control Panel |
11 |
Operation |
12 |
Display |
13 |
Display Modes |
14 |
Settings |
17 |
Servicing, Maintenance and Spare Parts |
24 |
System - Fault Finding |
25 |
Operation of the Solar Control |
26 |
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System Design
These instructions are an integral part of the controller and must, to comply with the current issue of the Gas Safety (Installation and Use) Regulations, be left with the user.
Please ensure that the installer has fully completed the Benchmark Checklist in the centre pages of the installation instructions supplied with the product and that you have signed it to say that you have received a full and clear explanation of its operation. The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations (England and Wales).
All installations must be notified to Local Area Building
Control either directly or through a Competent Persons
Scheme. A Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt,
write the Notification Number on the Benchmark Checklist.
Please read these instructions and follow them carefully for the safe and economical use of this product.
Solar system
The solar system is intended for the provision of solar heated domestic hot water. Any other use is considered to be improper and the manufacturers / suppliers are not liable for any resulting damage.
IMPORTANT: We accept no liability for any damage or injuries caused by improper use.
Flurocyl twin coil unvented cylinder
The Flurocyl is an unvented, indirectly heated hot water cylinder for use with solar systems and suitable boilers. This cylinder is intended to supply domestic hot water and may only be used for this purpose.
Compartment or Cupboard Installations
Ventilation is not required for compartment or cupboard installations. Do not use the compartment or cupboard for storage.
Fluropro solar control
The Fluropro monitors the temperature within your cylinder and solar panel and controls the solar system accordingly. This control is also able to determine if the boiler is required to provide further heat.
The Fluropro solar control works on the principal of differential temperature control. The control always switches on the collector pump when the difference in temperature (collector temperature - cylinder temperature) is greater than the programmed activation difference.
The controller switches off the collector pump when the difference in temperature (collector temperature - cylinder temperature) is less than the programmed deactivation difference.
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System Functions
Solar gain
The installation engineer activates and configures the solar gain function within the Fluropro installer menu.
The solar gain is determined from:
• The difference of temperature between the collector flow and return.
•The flow rate setting of the flow rate adjuster.
•The operating time of the collector pump.
During installation the engineer sets the actual flow rate and enters the setting into the solar control. The solar gain is calculated and displayed by the solar control. The total gain can be called up and reset in the installer menu.
Solar gain modulation
The rate of solar gain can be modulated to ensure the solar heat at the bottom of the cylinder has sufficient time to dissipate to the top of the cylinder. This maintains demand for solar energy and prevents excessive on and off periods that are inefficient.
The modulation is achieved by means of more frequent on and off operations of the solar pump during solar demand.
The pump is switched on and off and the rate depends upon the difference between the collector temperature and lower cylinder sensor. When the activation difference is reached, the function is started (if activated) with an activation duration of 50 % - i.e., the pump is switched on for 30 seconds and then switched off for 30 seconds. If the difference in temperature increases, the activation duration is prolonged (e.g., 45 sec. on, 15 sec. off). When the
difference in temperature decreases, the activation duration is reduced (e.g., 20 sec. on, 40 sec. off). The period length is always a minute.
Solar circuit protection function
If the solar heat exceeds the current heat requirement, i.e. the cylinder is fully charged, the temperature in the collector array can rise steeply.
To protect the solar circuit (solar pump, valves, etc.) from overheating, if the protection temperature at the collector sensor is exceeded, the collector pump is shut down and is prevented from restarting even when there is a demand for solar reheating. The solar pump is switched on again once the system has cooled down. This function is performed independently for each collector array. The control will show “PROT” whilst this function is active.
6
System Functions
Cylinder reheat
The cylinder reheat function allows the cylinder to heat up to the required temperature during a set time window, even if the solar gain is insufficient. In this case the water can be reheated using an external boiler or the immersion heater.
You can set up times for reheating the solar cylinder, refer to Settings section in Instructions for Use.
Reheat delay
To prevent unnecessary cylinder reheating by a boiler or an immersion heater, the Fluropro solar control includes a reheat delay function. This function delays the cylinder reheat by up to 30 mins if solar gain is available.
If the solar pump is off and the desired cylinder temperature is not reached after the delay period, the cylinder will be reheated using an external boiler or the immersion heater.
The reheat delay function is activated by an engineer within the Fluropro installer menu.
Legionella protection
The Legionella protection function is designed to kill germs in the cylinder system.
When the function is activated, the cylinder, the hot water pipes, and the circulation pump (if installed), are brought to a temperature of 70°C on the programmed day(s) and at the programmed time.
In doing so, the cylinder temperature is raised to 70°C and the corresponding circulation pump is switched on
(if installed). First, an attempt will be made using solar gain alone to reach the target temperature over a 90 min.
period. If this is not successful, the Legionella protection is carried out using an external boiler or an immersion heater, whichever has been set up for this thermal protection. The
Legionella protection function will stop once a temperature of at least 70°C has been maintained for a period of 30 minutes.
The installation engineer activates the Legionella protection function within the Fluropro installer menu and specifies whether the thermal disinfection should take place at 3:30 p.m. or at 4:00 a.m., i.e. mininal offset gain at 3:30 p.m.
versus cheaper electricity at 4:00 a.m.
Anti-seize protection for pumps
If no pumping has occurred for 23 hours, all installed pumps are switched on for approx. 3 seconds to prevent
pumps from seizing.
Secondary recirculation
The Fluropro solar control includes a programmer channel for a DHW secondary return. A secondary return should not
be used with Glow-worm twin coil unvented solar cylinders.
Calendar
The controller is equipped with a calendar so that it can automatically adjust by 1 hr between GMT and BST. To activate it, an engineer can simply enter the current date within the Fluropro installer menu.
NOTE: In the event of a power failure, the controller only has a power reserve of 30 minutes. After 30 minutes, the internal clock stops and the calender will not automatically resume function once power has been restored. In this
case the time and date will need to be reset.
7
Control Functions
Special functions
Please refer to Settings section for information on how to activate the following special functions.
•Party function
When the party function is activated, the cylinder reheat is activated until the next programmed off period. This means that the cylinder DHW temperature setting will be maintained by the auxiliary cylinder reheating if necessary.
•One-time cylinder reheat
When this function is activated, the cylinder is reheated to
DHW temperature setting ONCE ONLY.
•Holiday function
When this function is activated, the operating mode is switched to “Off” for the set holiday period (1 to 99 days). This deactivates both the solar heating and the cylinder reheat.
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User Instructions
General Note
We recommend declaring the solar system as an increase in value to your insurance and insuring it against lightning.
Operation of the solar system
Once the solar system is commissioned it will work automatically, you do not even need to make any adjustments when you go on holiday.
IMPORTANT: The collectors and pipes can become very hot – avoid touching them!
IMPORTANT: You must not make any changes to the Flurocyl cylinder, Fluropro control, pipework, power supply, wiring, pressure relief valves or expansion relief valves. The system operates automatically.
IMPORTANT: Do not switch off the solar system – even when you go on holiday or assume an error has occurred,the only exception is if, the solar panels have been damaged, resulting in a pressure drop in the solar system or solar fluid escaping.
Do not take out the fuse or switch off the fuse box.
Do not under any circumstances empty or fill the solar circuit yourself.
Operation of the solar cylinder
The unvented Flurocyl solar cylinder is provided with connections for a solar system as well as an auxiliary cylinder reheat system.
How to control the solar system is described in the manuals for each controller.
NOTE: In the event of leaks in the water pipework close the main cold water stop valve. This is usually located under a kitchen sink.
IMPORTANT: A thermostatic mixing valve must be fitted to the outlet of the cylinder and can be adjusted to the desired domestic hot water temperature by an installation or service engineer. Otherwise there is a risk of scalding as the cylinder outlet temperature at the taps could be up to 85°C.
IMPORTANT: Risk of damage! Do not remove or modify any components of the solar cylinder.
In the unlikely event of a malfunction occurring of the Flurocyl, such as hot water flowing out of the temperature and pressure relief valve, switch off the boiler and the immersion heater and contact Glow-worm or your installer.
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