Alpha Alpha CD50 Manuel utilisateur

Supplementary LPG Boiler

Instructions

Alpha CD50

Wall Mounted, Fan Assisted, Room Sealed, Gas Fired,

High Efficiency, Condensing Combination Boiler with

Unvented Hot Water Storage

Alpha CD50 G.C. No. 47 532 24

British Gas

Service Listed

For use with LPG (Propane) only

Leave these instructions with the User

Nepicar House, London Road,

Wrotham Heath, Sevenoaks,

Kent TN15 7RS

For Technical help or for Service call ...

ALPHA HELPLINE Tel: 0870 3001964

website:www.alpha-innovation.co.uk

2CD50 LPG Supplement

1 INTRODUCTION

This supplement is for the LPG model of the boiler; it must be read in conjunction with the 'Installation and Servicing

Instructions' supplied with the boiler and provides the extra information which is particular to LPG.

The Alpha CD50 is a wall mounted, high efficiency, fan assisted, room-sealed, condensing combination boiler - incorporating a

52 litre unvented hot water storage cylinder. The burner is lit electronically and heat output is controlled by a modulating gas

valve and fan.

The boiler, providing both central heating and domestic hot water at mains pressure, is designed for use with a fully pumped,

sealed and pressurised heating system using only PROPANE gas.

2 TECHNICALDATA

2.1 PERFORMANCE - PROPANE GAS (CAT 3P-G31-37 mbar)

37.0

14.8

7 minutes

3 minutes

5 minutes

MIN.

7.4

25 360

6.6

22 830

6.3

21 500

0.24

0.1

0.26

9.3

1.0

0.22

Domestic Hot Water

Heat Input (Hs)kW

(Gross) Btu/h

Heat Input (Hi)kW

(Net) Btu/h

Output to Water (Hs)kW

(modulating) Btu/h

Differential Burner mbar

Pressure in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

Flow Rate L/min

G.P.M.

Outlet Water Temp. (Approx.) °C

°F

Time to raise water store by 50°C

Reheat time for 70% of store (boiler ON)

(boiler OFF)

Room sealed

chamber panel

fitted

MAX.

36.1

123 190

32.6

110 910

32.0

109 200

5.9

2.36

1.25

44.6

18.0

4.0

149

37.0

14.8

180

MAX.

31.0

105 770

28.0

95 230

29.7

101 430

27.6

94 130

4.16

1.66

1.08

38.6

MIN.

7.4

25 360

6.6

22 830

7.0

23 980

6.5

21 500

0.24

0.10

0.26

9.3

Room sealed

chamber panel

fitted

Central Heating

Heat Input (Hs)kW

(Gross) Btu/h

Heat Input (Hi)kW

(Net) Btu/h

Heat Output (Hscondensing) kW

(50°C/30°C) Btu/h

Heat Output (Hinon-condensing) kW

(80°C/60°C) Btu/h

Differential Burner mbar

Pressure in wg

Gas Supply Pressure (LPG) mbar

in wg

Gas Rate (LPG) m³/h

ft³/h

CH Water Temp. (Approx. max.) °C

°F

CD50 LPG Supplement

3 BOILER LOCATION

The boiler must not be installed in a room or internal space below ground level, e.g. in a basement or cellar, except where at

least one side is open to ground level.

4 INSTALLATION

In addition to the regulations and requirements stated in the Installation and Servicing instructions, the boiler must be installed

in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings.

5 COMMISSIONING

6 PARTS LIST

Only the main burner injectors are special to Propane boilers. For other 'Short List Spare Parts', refer to the Installation and

Servicing instructions supplied with the boiler.

Propane components

Main burner injector Qty.

1Type

4.55 mm Alpha Part No.

1.018202

The boiler has been tested and factory set for use with Propane gas and it should only be necessary to ensure the correct gas

supply pressure of 37 mbar is available.

2.2 GAS SUPPLY

The Alpha CD50 boiler requires a gas rate of 2.5 kg/h (5.5 lb/h) or 4.8 litres/h of liquid gas.

The supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other appliances in the

house. The boiler requires at least a 22 mm gas supply pipe.

The complete installation must be tested for gas soundness against leakage.

The local Propane gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an

adequate supply of gas.

Installation pipes, cylinders and pressure regulators should be fitted in accordance with BS 5482:1. Bulk tank installation must

comply with the requirements of the Home Office code of practice for the storage of liquefied petroleum gas at fixed installations.

7 SERVICING

When servicing or replacing boiler components follow the procedures as described in the main Installation and Servicing

instructions supplied with the boiler.

Remembering the parts special for Propane boilers and the burner pressures special to Propane boilers given in this leaflet.

DETAILS OF BOILER INSTALLATION

Date of Installation: ......................................................................

Name of Installer: ........................................................................

Address: ......................................................................................

....................................................................................................

Postcode: ....................................................................................

Telephone No: .............................................................................

Boiler Serial Number: (LPG) ........................................................

(see inside controls panel hinged cover)

Leaflet compiled and designed by Publications 2000 - Tel: (01670) 356211 11/08/D229

Part No. 1.021350

These instructions have been carefully prepared but we reserve the right to

alter the specification at any time in the interest of product improvement.

Alpha Therm Limited.

NepicarHouse,LondonRoad,WrothamHeath,

Sevenoaks, Kent TN15 7RS

Tel: 0870 3001964

email: [email protected]

website:www.alpha-innovation.co.uk

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