INSTALLATION

33 GAS CONNECTION

IMPORTANT. The gas service cock is sealed with a non-metallic fibre washer seal so must not be overheated when making capillary connections.

Refer to Frame 2 for details of the position of the gas connection.

N.B. The principle of the 1:1 gas valve ensures that the icos HE range is able to deliver it’s full output at inlet pressures down to 14mb. However if dynamic pressures below 20mb are experienced ensure this is adequate for ALL other gas appliances in the property.

A boiler gas supply pipe length of 20m and not less than 15mm O.D. can be connected to the boiler via the gas service cock union.

Ensure that the gas supply pipe does not foul the boiler casing.

Refer to Frame 41 for details of the pressure test point position.

INSTALLATION

34 BOILER WATER CONNECTIONS

The boiler flow and return pipes are supplied fitted to the boiler and ready for top connection.

Note.

For heating loads in excess of 60 000 Btu/h use 28mm x 22mm connectors to connect the boiler flow and return pipes to 28mm.

TOP CONNECTION

Connect the system pipework to the boiler flow and return pipes.

Note.

The front panel is not fitted at this stage.

35 ELECTRICAL CONNECTIONS

WARNING. This appliance MUST be earthed.

A mains supply of 230 V ~ 50 Hz is required.

All external controls and wiring MUST be suitable for mains voltage.

The fuse rating should be 3 A.

Wiring external to the boiler MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations and any local regulations.

Wiring should be 3 core PVC insulated cable NOT LESS than 0.75 mm2 (24 x 0.2mm) and to BS. 6500, Table 16.

For IE reference should be made to the current ETCI rules for electrical installations.

Connection must be made in a way that allows complete isolation of the electrical supply - such as a double pole switch having a 3mm (1/8") contact separation in both poles, or a plug and socket serving only the boiler and system controls. The means of isolation must be accessible to the user after installation.

icos - Installation & Servicing

27

Page 27
Image 27
IDEAL INDUSTRIES HE15, HE24, HE18, HE12 manual Installation GAS Connection, Electrical Connections

HE12, HE15, HE18, HE24 specifications

The IDEAL INDUSTRIES HE series, comprising the HE24, HE18, HE15, and HE12 models, represents a significant advancement in the field of electrical testing and measurement tools. These versatile testers stand out in professional environments for their high accuracy, user-friendly interfaces, and advanced features designed to enhance efficiency and reliability in electrical inspections.

The HE24 is the flagship model, boasting an extensive range of functionalities. It includes advanced digital multimeter capabilities, allowing for precise measurements of voltage, current, and resistance. Its True RMS feature ensures accurate readings, even with non-linear loads. The HE24 also incorporates advanced connectivity options, including Bluetooth technology, enabling users to transfer data wirelessly to smartphones or tablets for further analysis. The large, backlit display enhances visibility in various lighting conditions, making it an ideal tool for both indoor and outdoor use.

The HE18 model, while slightly more streamlined than the HE24, still offers robust capabilities. It features multiple testing modes, including continuity and diode testing, catering to a wide range of electrical tasks. The HE18 also utilizes a user-friendly interface, allowing technicians to navigate easily through various functions. Equipped with a protective rubber housing, this model is durable and built to withstand the rigors of frequent use on job sites.

The HE15 and HE12 models represent the compact, entry-level offerings in the HE series. Designed for the budget-conscious user, these models retain essential functionalities such as basic voltage and current measuring capabilities while prioritizing ease of use. The HE15 includes a simple LED indicator to signal when measurements are being taken, promoting straightforward operation. Additionally, the HE12 features a lightweight design, making it the perfect tool for on-the-go technicians.

All models in the IDEAL INDUSTRIES HE series are engineered with safety in mind, adhering to stringent international testing standards. They provide superior insulation resistance and a high degree of accuracy, mitigating the risks associated with electrical work. Furthermore, their IP-rated enclosures ensure protection against dust and moisture, enhancing longevity.

In conclusion, the IDEAL INDUSTRIES HE24, HE18, HE15, and HE12 series represent a comprehensive range of electrical testing tools that cater to professionals' varied needs. With their combination of advanced features, user-friendly designs, and safety compliance, these models are excellent choices for any electrical technician aiming for accuracy and efficiency in their work.