In order to do the installation correctly, the following basic steps should be taken into account:

First of all, the area where the H/Z will be installed must be defined as there must be sufficient space around the perimeter for its installation.

The points to watch out for next are:

• Transport and unloading of the H/Z.
• Floor (base) of the E/Z bearing.
• Proper ventilation.
• Anti-vibration.
• Soundproofing.
• Exhaust system.

Transport and unloading of the H/Z

TESCOM's H/Z's are designed in such a way that transport, loading and unloading operations can be carried out easily and safely. To this end, open-type and soundproof PCs are equipped with a metal base with suitable holes for lifting by crane.

Depending on the size, they can be moved with a forklift, using additional legs that lift the H/Z off the floor and allow the forks to be inserted.

Floor (base) of the E/Z bearing

The certification that the floor on which the E/Z is to rest has the strength per square metre to support its weight is the most important factor at this stage. This should be a prerequisite and should be checked before the selection and ordering of the E/Z.

Since there is no strength issue the simplest way to fix the generator is with bolts that will be placed in the metal frame of the generator in the appropriate holes. It is necessary to check that the equipment is securely fastened and that the mounting areas are level in relation to the ground. Otherwise, an increase in equipment vibration may be caused and engine-generator alignment may be affected. Also as stated initially, there should be sufficient space around the perimeter of the E/Z for convenient access by technicians.

Proper ventilation

In indoor installations, both open-type and sound-insulated H/Cs require good ventilation for cooling and combustion. To calculate the required ventilation rate, the following details should be added:

• Engine combustion flow.
• Engine cooling air flow.
• Exchanger cooling air flow.

It is vital that there are separate air inlets and outlets to prevent the hot air exhausted by the engine fan from recirculating and heating the generator, as this can cause the E/Z to shut down due to high temperatures. This practically means that the H/Z area should have sufficient opening with louvres. Not to forget the size of the louvres and the control of the air inlet temperature - the air temperature should not exceed 40 °C to prevent the H/Z from reducing the power output.

You should not position the H/Z so that the refrigerator is on the same wall as the air intake, as this would encourage the recirculation of hot air in the room, causing overheating.

Anti-vibration elements

When operating, EZs produce vibrations which, if not minimised, can be transmitted to the environment in which they are located, causing noise and damage to the structures that support them. To avoid this, suitable anti-vibration elements capable of absorbing most of the vibrations should be placed under the EZ.

All TESCOM H/Z's include anti-vibration blocks integrated between the motor/exchanger assembly and the base frame.

For installations where this point is particularly critical, there are additional anti-vibration elements such as springs, elastic materials (e.g. Sylomer) that complement and increase the action of the anti-vibration blocks.

Soundproofing

The noise generated by an EZ is the product of the mechanical vibration and movement of the various parts of the equipment.

Although in many cases we cannot act on the noise generated by the generator itself, it is possible to isolate the machine to mitigate it.

Through the walls of the room where the E/Z will be housed or through the air inlets and outlets by placing different barriers for the cooling air flow.

In hospitals or residential areas, the noise of the E/Z is a big problem to be solved and, in such cases, TESCOM uses and designs accessories to achieve maximum sound insulation.These are:

• Soundproof air inlet and outlet baffles (super silent cover option).
• Enhanced exhaust silencers (critical silencer option).
• Double layer of sound absorbing material on the covers (super silent cover option).
• Air passage traps (super silent type cover option).

Exhaust system

In order to channel the exhaust gases produced by the engine, in addition to attenuating the noise generated, there must be an opening in the space to allow the exhaust gases to vent during operation of the HZ. An exhaust silencer is usually fitted.

For the correct and complete evacuation of the exhaust gases, it is necessary to install an exhaust and ventilation system in an external area (chimneys). TESCOM's technical department will calculate the ideal dimensions of these ducts to ensure the correct operation of the machine.