Baxi Eco 3 Service Manual download pdf (Page 9)

6.0 System Details

6.1 Information

1. The Baxi Combi 80Eco Combination Boiler is a

‘Water Byelaws Scheme - Approved Product’.

To comply with the Water Byelaws your attention is

drawn to the following installation requirements and

notes (IRN).

a) IRN 001 - See text of entry for installation

requirements and notes.

b) IRN 302 - Byelaw 14.

2. Reference to the WRC publications, ‘Water fittings

and materials directory’ and ‘Water supply byelaws

guide’ give full details of byelaws and the IRNs.

6.2 Central Heating Circuit

1. The appliance is suitable for fully pumped

SEALED SYSTEMS ONLY.

Treatment of Water Circulating Systems

• All recirculatory water systems will be subject to

corrosion unless an appropriate water treatment is

applied. This means that the efficiency of the

system will deteriorate as corrosion sludge

accumulates within the system, risking damage to

pump and valves, boiler noise and circulation

problems.

• For optimum performance after installation this

boiler and its associated central heating system

must be flushed in accordance with the guidelines

given in BS 7593 “Treatment of water in domestic

hot water central heating systems”.

• This must involve the use of a proprietary

cleanser, such as BetzDearborn Sentinel X300 or

X400, or Fernox Superfloc. Full instructions are

supplied with the products, but for immediate

information please contact BetzDearborn (0151

420 9563) or Fernox (01799 550 811) directly.

• For long term protection against corrosion and

scale, after flushing it is recommended that an

inhibitor such as BetzDearborn Sentinel X100, or

Fernox MB-1 or Copal is dosed in accordance with

the guidelines given in BS 7593.

Failure to flush and add inhibitor to the system

may invalidate the appliance warranty.

• It is important to check the inhibitor

concentration after installation, system modification

and at every service in accordance with the

manufacturer’s instructions. (Test kits are available

from inhibitor stockists.)

• For information or advice regarding any of the

above contact the Baxi Helpline.

6.3 Bypass

1. The boiler is fitted with an automatic integral

bypass.

6.4 System Control

1. The boiler is designed for use in a heating

system that incorporates external controls, i.e. a

minimum of a timer device.

2. Suitable timer kits are available as optional

extras.

3. For optimum operating conditions and maximum

economy the fitting of a programmable thermostat,

such as one of the Baxi Combi 80Eco Controllers,

is recommended.

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Baxi Eco 3 Service Manual Page 9

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