4-Installation
7
WARNING !
The grill is intended to protect operators from risks of injury from the exchanger during
handling and installation operations.
However, it can create a risk of clogging with frost or ice on heat pump machines
installed in cold or mountainous regions and exposed to the elements.
To avoid such a risk, a shelter must be provided, or the protective grill can simply be
removed.
5-Hydraulic connections
8
5.1 HYDRAULIC CONNECTION
In choosing and installing water pipes, current local safety rules and
precautions must be consulting and respected.
Recommendations:
The pipe circuits must be designed with a minimum of bends, and by reducing
as far as possible the number of changes in height, in order to provide the best
cost installation and guarantee the best performance.
The pipe network must include:
1. A device to eliminate vibrations (e.g. connecting hoses) on all pipes
connected to the unit in order to reduce vibration and noise transmission to the
building.
2. Stop cocks to isolate the hydraulic circuit during maintenance.
3. Automatic or manual bleed valves at the highest points on the chilled water
circuit.
4.An adequate system to maintain water pressure in the circuit (expansion tank
or pressure regulating valve).
5.Thermometers and pressure gauges installed on the exchanger inlet and
outlet. They will facilitate regular checks and maintenance.
6. To avoid any risk of foreign bodies entering the system and to maintain
optimum performance, it is strongly advised to install the water filter accessory
on the machine
’
s inlet .
WARNING !
The evaporator is equipped with a heating mattress (automatically controlled
by the main controller) to prevent any ice intake during periods of low outside
temperature. When the unit is not running in the winter, it is necessary to leave
the power supply connected for this protection system to function.
The water filter / stop cock assembly is to be connected to the machine inlet,
taking care to keep the water filter mesh towards the bottom.
Summary of Contents for Evo Control 8
Page 1: ......
Page 20: ...Code 20170517 0001 ...