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ESIE10-01 General Outline

Part 1 – System Outline 1–89

Attention: The minimum installation clearance spaces described previously are indicative only and

not a fundamental requirement. Each installation must be carefully evaluated according to the specific

environmental parameters. For example: should you fail to consider dominant wind at the point of

installation, this can affect overall machine function, even where the recommended minimum

installation clearance spaces are left.

Sound protection When sound levels require special control, great care must be exercised to isolate the machine from

its base by appropriately applying anti-vibration elements (supplied as an accessory). Flexible joints

must be installed on the water connections as well.

Water piping Attention: Adjust the anti-vibration mountings beneath the machine before connecting the water

circuit.

Piping must be designed with the lowest number of elbows and the lowest number of vertical changes

of direction. In this way, installation costs are reduced considerably and system performance is

improved. The water system should have:

1. Anti-vibration mountings in order to reduce transmission of vibrations to the underlying structure.

2. Isolating valves to isolate the machine from the water system during service.

3. Manual or automatic air venting device at the system's highest point. Drain device at the sys-

tem's lowest point.

4. Neither the evaporator nor the heat recovery device must be positioned at the system's highest

point.

5. A suitable device that can maintain the water system under pressure (expansion tank, etc.) and

offset temperature changes.

6. Water temperature and pressure indicators on the machine to assist the operator during service

and maintenance.

7. A filter or device which can remove foreign particles from the water before it enters the pump (in

order to prevent cavitation, please consult the pump manufacturer for the recommended filter

type). The use of a filter prolongs the life of the pump and helps keep the water system in better

condition.

8. Another filter must be installed on the machine inlet water pipe, near the evaporator and heat

recovery (if installed). The filter prevents solid particles from entering the heat exchanger, as

they could damage it or reduce its heat exchanging capacity.

9. The shell and tube heat exchanger is fitted with a thermostatic electrical resistance that guaran-

tees protection against water freezing down to external temperatures of -25°C. All other water

piping outside the machine must be protected against freezing. To guarantee correct resistance

function, the machine must be powered even when not in use.

10. The heat recovery device must be emptied of water during the winter season, unless an appro-

priate percentage antifreeze mix is added to the water circuit.

11. If the machine is installed to replace another, the entire water system must be emptied and

cleaned before the new unit is installed. Regular tests and proper chemical treatment of water

are recommended before starting up the new machine.

3600

Recommended minimum installation clearance