Connections

The basic performance consists of the following parts:

Heat exchanger of type AR for heating and type A for domestic hot water circuit.

VP (district heating side): levelling valves.

KV (cold water side): valve pipe incl. shut-off, check and safety valve.

VV (hot water side): temperature transmitter, thermometer, shut-off valve. Control equipment as standard (manufacture Danfoss, Landis & Staefa or t.a.c.): control unit for domestic hot water with constant control of water temperature. Control unit for heating with outdoor compensated primary inlet temperature. Valves, actuator, transmitter.

Range of Application

Heat exchange and control of district heating for domestic hot water and hot water systems. Adjusted for connection to district and central heating systems.

Quality Assurance

The production unit is certified according to ISO 9001, and has also a quality control system with self-control according to AFS 1994:39, controlled by TAC AB.

Material Specification

1 Shell and coil heat exchanger domestic hot water

2 Shell and coil heat exchanger for heating

3 Control valve

Function and Design

Elge Twin is a parallel connected district heating package, which consists of pipe heat exchanger, control equipment and accessories. The incoming primary water is distributed through control valves SV2 and SV3 to domestic hot water exchanger and to radiator heat exchanger. The control valve SV2

is affected by the temperature sensor in the VV-pipe (hot water). The control valve SV3 is affected by the sensor which is placed in the inlet pipe for the heat circuit VS.

Accessories and Options

The district heating central is equipped with control equipment from INCE or TAC Floor rack and mantle are available as spare parts.

Installation

The district heating central should be placed on an even ground. To make maintenance easier, it should be 3ft free area on each side and in front of the exchanger. Connecting/welding shall be executed acc. to local directions. To protect regulating valves and exchangers, filter should be mounted on incoming pipes to the unit, both primary and secondary. See Instructions for use.

Identification