building. climate. excellence.
building. climate. excellence.
Terminals 1 and 2 are for the common alarm, normally closed volt free contact, suitable for 230v and up to 5amps
The system size is largely irrelevant, the Mini has a top up rate of 0.4 l/min and as such is only suitable for domestic applications or light commercial with new pipe-work. For systems requiring a larger top up rate please look at the larger units.
On Mini units the system connection is ¼”, on Midi and Flexfiller units it is ½”.
The Mini, Midi and Flexfiller units all have WRAS approved float valve for direct connection to the water mains, and all have Weir overflow arrangements making them suitable for fluid category 5.
The Mini pressurisation units are not capable of filling a system as the pump flow rate would be insufficient. The Midi and Flexfiller units have a system fill option as standard.
Water is allowed into an internal storage tank, the system pressure is monitored by the pressurisation unit, when it drops to a preset level the integral pump(s) will start, draw water from the tank and top up the system.
No, the pressurisation unit need to ‘see’ the system pressure to be able to top up when needed, but also as a safety feature with the high pressure alarm (If fitted).
Always fit the pressurisation unit local to the system expansion vessel. This ensures that the temperature at the point of connection is below 70 °C.
The main information required is the static height from the unit to the top of the system (cold fill pressure required to overcome the static height), and if possible the size of the expansion vessel on the system.
It is always advisable to get pressurisation equipment and vessels commissioned. This ensures that the equipment is set up correctly, engineer visits booked as warranty calls that are evaluated as incorrect set-up are chargeable.
More information on our warranty can be found in our General Conditions of Sale (section 12). For returns a Goods Returns Number (GRN) must be obtained from the Flamco sales team before returning the goods. A detailed description of the fault (Faulty is not a description on its own) will also be required.
To correctly size an expansion vessel you require the highest water temperature (Flow temperature), the static height, the safety valve setting and either the system volume or the boiler/Chiller power rating.
The expansion vessel must be on the cold return leg to the boiler, as this is typically 71 °C or below. The maximum allowable temperature at the diaphragm is 70 °C on heating/Chilled vessels.
On Mini units the system connection is ¼”, on Midi and Flexfiller units it is ½”.
The most common vessel for an unvented, domestic or consumable water system (taps, showers etc) is a Silver Potable vessel.
An anti-gravity loop is a loop of pipe connecting the expansion vessel to the system. The idea is that the loop goes to a much higher level than the vessel and forms a thermal trap, with the high temperatures from the system remaining at the top of the loop and cooler water is then in the pipe-work to the vessel. By installing the expansion vessel on the coolest part of the system, in most cases, an anti gravity loop is therefore unnecessary.
On a domestic heating system it is typical to use as a minimum, an expansion vessel, a filling loop, a pressure gauge and a safety relief valve.
It is highly likely that the vessel has been installed for some time without the gas charge being checked (which must be carried out annually with the vessel disconnected from the system) or that the vessel is too small for the system and an additional expansion vessel is required.
It is highly likely that the vessel is too small for the system and an additional expansion vessel is required.
More information on our warranty can be found in our General Conditions of Sale (section 12). For returns a Goods Returns Number (GRN) must be obtained from the Flamco sales team before returning the goods. A detailed description of the fault (Faulty is not a description on its own) will also be required.
The approval for the equipment against the building regulations requires the use of a 2 port valve to isolate the heating coil of the cylinder when the water reaches the desired temperature. If there is a desire to use a 3 port valve to divert the water flow, then this can be fitted upstream of the 2 port valve. The 2 port valve must be fitted as directed.
The system size is largely irrelevant, the Mini has a top up rate of 0.4 l/min and as such is only suitable for domestic applications or light commercial with new pipe-work. For systems requiring a larger top up rate please look at the larger units.
The system as a whole must be services annually as described in the warranty/installation instructions.
Red vessels are normally for sealed heating systems and as such are not suitable for consumable water (taps and showers are fed from mains water, full of dissolved oxygen). Consumable water will corrode red ‘heating’ vessels and the vessel will fail.
The most logical solution is to replace the main live feed to the cylinder controls with one from the time clock.
The thermostat control on the front of the cylinder will allow you to increase the temperature cut-out of the cylinder. As long as you have sufficient energy coming from the boiler this will increase the temperature of your stored water.
On an unvented (mains fed) cylinder the water pressure from the hot and cold taps is balanced, as a result it is not normally necessary to use a pump on hot supply to the shower. In areas of poor water pressure or flow a booster set may be needed to give the required water flow/pressure.
Quite simply the water heat up time will be longer, other than this, the performance of the cylinder should not be affected.
More information on our warranty can be found in our General Conditions of Sale (section 12). For returns a Goods Returns Number (GRN) must be obtained from the Flamco sales team before returning the goods. A detailed description of the fault (Faulty is not a description on its own) will also be required.
Flamco has been involved in the development, production and sale of high-quality components for use in HVAC systems since 1956. It is part of the stocklisted Aalberts NV, instituted in 1975. Along with Comap, which helps manage water and energy through its thermal and sanitary products that increase comfort in buildings, the Aalberts hydronic flow control business unit was constituted. Stronger together, Flamco and Comap will continue to build mission critical technologies to manage heating and cooling humanly with better financial and environmental efficacy. From source to emitter we partner with our customers to engineer seamless energy efficient hydronic systems for their building requirements.
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