INTRODUCTION

The THEMA F 23 E boiler is a wall mounted modulat-ing combination boiler with electronic ignition pro- viding central heating and instantaneous domes- tic hot water. Both the central heating and domestic hot water temperature are user adjustable from the boiler control panel. Domestic hot water demand always has priority over heating demand.The ConversionPart No. Natural Gas (G20) to G30/G3186161Boilers burning LPG or similar gases MUST NOT befitted in basements or below ground level.The boiler has a fan assisted balanced flue whichboth discharges the products of combustion to and draws the combustion air from the outside air. The boiler is supplied for rear outlet flue connec-tion. Alternatively, the boiler is designed to allow the flue system to be connected to the top of the boiler, top outlet flue connection. Refer to the flue fitting instructions.Electrical components have been tested to meetthe equivalent requirements of BEAB.The boiler is designed for use as part of a sealedwater central heating system with fully pumped circulation. The pump, expansion vessel and asso- ciated safety devices are all fitted within the boiler.The boiler can be installed against either an exter-nal wall or on an adjacent inside wall, that is, the flue system will pass directly to the rear or to either side to the terminal fitted on the outside wall face.The installation must be carried out by a compe-tent person in accordance with the relevant re- quirements of The Building Regulations, The Water Byelaws, The Building Standards (Scotland) Regu- lations and any applicable local regulations. Conversion kits: THEMA F SB 18 E and SB 23 E II2H3+ category for use withNatural Gas (G20) as distributed in the United King- dom, or with Butane or Propane gas (G30/G31) with the appropriate conversion kit. boilers are wallmounted modulating boilers with electronic igni- tion providing central heating only. The central heating temperature is user adjustable from the boiler control panel.The boilers are of the
Diagram 1

THEMA SB 18 E and SB 23 ETHEMA F 23 E

DIMENSIONS

Diagram 2 The boiler is delivered in threeseparate packages: - The boiler - The fixing jig - The flue system
234 Net weight: 41 kg Gross weight : 43 kg
857 623 802

410 378

Hab 271a 3