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TJERNLUND AUTO-DRAFT® Inducers assure positive draft when restricted boilers and furnaces, poor chimneys or slight negative pressures in buildings prevent proper exhaust of combustion gas. The venturi action of Tjernlund Auto-Draft Inducers starts air moving smoothly. These units are quick and easy to install and completely automatic in operation. Tjernlund’s unique design and durable construction makes them trouble-free and reduces maintenance to a minimum. The Vari-Draft Control permits adjustments to the individual job requirement.

Heating appliances are designed to operate with a consistent draft. Chimney configurations, mechanical draft fans and weather can cause draft fluctuations. These fluctuations result in inefficient combustion and more frequent service calls. Draft controls regulate the airflow through a chimney or vent. By diluting the chimney/vent draft with varying amounts of room air they maintain the draft at a heater's flue outlet within a consistent, safe and efficient range. This single acting control is made of galvanized steel for low maintenance and corrosion resistance. It has integral anchor points and self- aligning, self-centering rocker bearings for long lasting service. A cushioned stop minimizes rattle and noise. Adjustment is easily accomplished by moving counter weight on outside tab.

TJERNLUND AUTO-DRAFT® Inducers assure positive draft when restricted boilers and furnaces, poor chimneys or slight negative pressures in buildings prevent proper exhaust of combustion gas. The venturi action of Tjernlund Auto-Draft Inducers starts air moving smoothly. These units are quick and easy to install and completely automatic in operation. Tjernlund’s unique design and durable construction makes them trouble-free and reduces maintenance to a minimum. The Vari-Draft Control permits adjustments to the individual job requirement.

 

CENTRAL HEATING CLEANER F5 EXPRESS

 

• Quick ,convenient and simple to use – doses in 30 seconds

 

• Added via a radiator adapter or filling loop supplied

 

• 100% recyclable can

 

• Compatible with all metals and materials including aluminium

 

• Removes sludge and scale and restores heating efficiency

 

• Removes flux residues and other debris

 

• Neutral, non-hazardous and environmentally formulation

Cleaner F5 Express has been designed for pre-commission cleaning of new installations in accordance with BS7593:1992, removing flux residues and other installation debris, to help extend the life of a system.

Cleaner F5 Express can be used in conjunction with Fernox Powerflow MKII machine and all known makes of powerflushing machines to remove all debris, sludge and scale from existing systems. In this way, it will restore heating efficiency and eliminate or reduce boiler noise in heavily contaminated systems.

If the system is heavily scaled the use of Fernox DS40 System Cleaner is recommended.

Cleaner F5 Express is a neutral, non-hazardous product that is well inhibited and compatible with all metals and materials commonly used in heating systems.

For continued long term protection the system should be thoroughly cleaned and flushed in accordance with legislation BS7593:1992 and Benchmark using Fernox Cleaner F5 Express, before treating with a Fernox Protector F1. We recommend Protector levels are checked regularly (annually).

Physical Properties

Colour: Amber

Odour: Faint

Form: Liquid

pH (conc): 7

pH (1% soln) 7.5 - 7.8

SG: 1.201 g/cm

3

(20°C / 68°F)

 Cleaner F5 Express will protect an average sized system (100 litres or up to ten single radiators) and maybe added via a radiator or filling loop. Fernox Cleaner F5 Express can be dispensed directly into a radiator air vent or system filling loop using the appropriate special adapter supplied with the product. Additional/repeat applications of Cleaner F5 Express may be necessary, for larger systems or if systems are heavily sludged.

When using Cleaner F5 Express with a powerflushing unit, cleaning should be completed within an hour. Use dynamic flushing with plain water until the water is clear, testing with the TDS meter as above to ensure thorough flushing.

Refill the system adding a suitable Fernox Protector for long term protection against corrosion and limescale.

In single feed indirect cylinders, e.g. "Primatic" or similar, potable water chemicals must be used.

First drain and refill the entire system with plain water. For optimum results the entire system, including drop feed radiators, where fitted, should be completely drainable. Preferably full bore gate valves with hose connectors should be provided temporarily for this purpose. Motorised and thermostatically controlled valves must be set so that no part of the system is closed off during cleaning or rinsing. Discharges must be made to the foul drain and not the surface water drain.

For open vented systems add Fernox Cleaner F5 Express via the header tank. For sealed systems add via a radiator using a Fernox Injector.

When cleaning existing systems, sludge and debris should be dispersed for at least one hour at normal operating temperatures. However, to remove hardened iron oxides and limescale, the cleaning time can be extended to up to one week under the normal heating cycle. If a radiator still has a cold spot after one hour, increase the flow through the radiator by closing the valves on the other radiators. An additional or repeat dose of Cleaner F5 Express may be necessary in some cases.

Drain and flush the system thoroughly to remove the cleaning chemical and debris. At least three complete changes of water are likely to be required. This is a crucial part of the cleaning process and must be carried out correctly. Use a rinse test meter such as the Fernox TDS meter to ensure that the Total Dissolved Solids have been satisfactorily removed. The system can be regarded as being thoroughly flushed when the system water value is within 10% of the mains water value. Differences over 10% mean that significant cleaner residues have been left in the system and further flushing is required. If not removed, cleaner residues will promote corrosion and negate the cleaning process.

Fernox Cleaner F5 Express is supplied in 280ml aerosol cans with a universal applicator set.

Fernox Cleaner F5 Express is classified as non-hazardous. But as with all chemicals: Keep out of reach of children. In case of contact with skin or eyes, rinse immediately with plenty of water. Wear suitable gloves

GB142 Water Pressure Sensor

Viessmann Vitoden Gas Boilers

 100-W Gas Fired Wall-Mounted Condensing Boiler with Modulating Stainless Steel Cylinder Burner and Inox-Radial Heat Exchanger Service.

 

Model		WB1B 26	WB1B 35
CSA input	MBH kW	37 - 91 8.5 - 23.4	37 - 118 8.5 - 29.3
CSA output *	MBH kW	34 - 83 7.6 - 21	34 - 108 7.6 - 26.4
Efficiency (A.F.U.E.)	%	95.2	95.2
Altitude levels	ft. m	0 - 10,000 0 - 3,048	0 - 10,000 0 - 3,048
Overall dimensions
Depth	inches mm	14⅛ 360	14⅛ 360
Width	inches mm	15¾ 400	15¾ 400
Height	inches mm	28½ 725	28½ 725
Shipping weight	lbs kg	95 43	95 43

* Output based on 140ºF / 60ºC, 120ºF / 49ºC system supply/return temperature.

Viessmann CombiPLUS Kit for Vitodens 100-WB1B

Optional On Demand Domestic Hot Water Kit for Reliable DHW Without a Tank.

 

• Selectable temperature control – gives thermostat flexibility to control a range of heating systems and applications
• Comfort, economy and vacation presets – enable temperature changes at the touch of a button
• Pump protection – for hot water heating activates pump for one minute every 24 hours to prevent seizure Compact design – one of the smallest thermostats on the market
• Precise LCD – shows room temperature in increments of 0.1°C or 0.1°F
• Low battery indicator – gives 60 days warning to replace batteries
• Remote input – enables change of temperature modes by phone (telephone controller required)

Pro-Tek® 922 is a concentrated corrosion inhibitor treatment specially formulated for hot water closed loop heating systems. Many water sources used in hydronic heating systems can be very corrosive to metals when heated. Pro-Tek 922 will help to reduce corrosion on aluminum, brass, copper, iron, and stainless steel. Pro-Tek 922 has also been tested and is compatible with standard PEX and Onix tubing typically used in hydronic installations.

In heating and air conditioning control systems, the circulation of water containing impurities may result in rapid wear and damage to components such as pumps and control valves. It also causes blockages in heat exchangers, heating elements and pipes, resulting in lower thermal efficiency within the system. The dirt separator separates off these impurities, which are mainly made up of particles of sand and rust, collecting them in a large collection chamber, from which they can be removed even while the system is in operation. This device is capable of efficiently removing the smallest particles, with low head loss.