Mamiya C32, C28, C24 manual Water Circulation System, Water Treatment, AIR Supply, Additional Pumps

GENERAL

5	From vertical drain pipes or soil	25 mm ( 1”) ***
	pipes*
6	From an internal or external corner	25 mm ( 1”) ***
	or to a boundary along side the
	terminal
7	Above adjacent ground, roof or	300 mm (12”)
	balcony level
8	From a surface or a boundary	600 mm (24”)
	facing the terminal.
9	From a terminal facing a terminal	1200 mm (48”)
10	From an opening in a car port (e.g.	1200 mm (48”)
	door or window) into dwelling
11	Vertically from a terminal on the	1500 mm (60”)
	same wall
12	Horizontally from a terminal on the	300 mm (12”)
	wall

*If the terminal is within 150mm of any vertical soil or drain pipe, an aluminium shield at least 400mm (15 3/4”) long should be fitted equi---distant from the terminal and close to the pipe.

***Only 1 spacing down to 25mm is allowable per installation.

Vertical Terminals

13	Above the roof pitch with roof	300 mm (12”)
	slope of all angles.
	Above flat roof	300 mm (12”)
14	From single wall face	600 mm (24”)
	From corner wall faces	1000 mm (40”)
	Twin Flue Applications
15	Centre distance between air inlet	120mm (5”) **
	and flue outlet ducts

**Where the twin flue ducts are positioned at or near the above minimum centres the wall sealing gaskets should be trimmed to allow them to fit flat to the wall. This should be done for both in- side and outside wall gaskets

Terminals guards are available from boiler suppliers --- ask for Tower Flue Guard, Model K6. In case of difficulty seek advice from:

Grasslin UK Ltd.,Tower house, Vale Rise, Tonbridge, Kent TN9 1TB Tel. +44 (0) 1732 359 888 Fax No. +44 (0) 1732 354 455 www.tfc---group.co.uk

IMPORTANT It is absolutely ESSENTIAL to ensure, in practice, that products of combustion discharging from the terminal cannot re---enter the building or any other adjacent building through ventilators, windows, doors other sources of natural air infiltration, or forced ventilation / air conditioning.

If this should occur the appliance MUST be turned OFF, labelled as “unsafe” until corrective action taken.

WATER CIRCULATION SYSTEM

The boilers are designed for connection to pressurised, fully pumped, sealed water central heating systems ONLY. The domestic hot water (DHW) calorifier is incorporated within the combi boiler and only requires connection to the mains water supply.

Additional Pumps.

The boiler is supplied with an integral circulating pump. If the boiler is to be used in conjunction with any additional circulating pumps, please contact the Technical Helpline for advice on application.

IMPORTANT

A minimum length of 1m of copper pipe MUST be fitted to both flow and return connections from the boiler before connection to any plastic piping.

Ensure that the mains water supply pressure is adequate to provide the required DHW flow rate. Refer to Table 1 on page 4.

The central heating system should be in accordance with BS. 6798 and, in addition, for smallbore and microbore systems BS. 5449.

The domestic hot water system should be in accordance with BS. 5546 and BS. 6700.

Copper tubing to BS 2871:1 is recommended for water carrying pipework and MUST be used for pipework carrying potable water.

Any soldered joints on potable water pipework MUST NOT be made with solder containing lead.

Ancillary pipework not forming part of the useful heating surface should be lagged to prevent heat loss and any possible freezing --- particularly where pipes run through roof spaces or ventilated underfloor spaces.

Draining taps should be at least 1/2” BSP nominal size and be in accordance with BS 2879.

WATER TREATMENT

Central Heating

Antifreeze fluid, corrosion and scale inhibitor fluids suitable for use with boilers having copper heat exchangers may be used in the central heating system.

IMPORTANT

The application of any other treatment to this product may render the guarantee of Caradon Ideal Limited

INVALID.

Caradon Ideal Limited recommend Water Treatment in accordance with the Benchmark Guidance Notes on Water Treatment in Central Heating Systems.

Caradon Ideal Limited recommend the use of Fernox, GE Betz Sentinel or Salamander water treatment products, which must be used in accordance with the manufacturers instructions.

Notes.

1.It is most important that the correct concentration of the water treatment products is maintained in accordance with the manufacturers’ instructions.

AIR SUPPLY

It is NOT necessary to have a purpose---provided air vent in the room or internal space in which the boiler is installed. Neither is it necessary to ventilate a cupboard or compartment in which the boiler is installed, due to the low surface temperatures of the boiler casing during operation; therefore the requirements of BS6798, Clause 12, BS 5440:2 and in IE I.S. 813:2002 may be disregarded.

2.If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing.

BS 7593:2006 details the steps necessary to clean a domestic heating system.

3.In hard water areas, treatment to prevent lime scale may be necessary --- however, the use of artificially softened water is NOT permitted.

4.Under no circumstances should the boiler be fired before the system has been thoroughly flushed.

mini HE --- Installation & Servicing 9