OPERATING AND MAINTENANCE MANUAL
Chapter 5 - Installation
TAEevo Tech MINI 02÷10
18
The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited
ENGLISH
EN
5.3 Freeze protection
Even if the minimum operating temperature is higher than 0°C, during shutdown periods in the cold season the unit may be
subject to temperatures that are lower than 0°C.
In such cases if the water is not drained out of the unit ethylene or propylene glycol antifreeze should be added to the water
in the following percentages:
In accordance with the chilled water outlet temperature, to avoid the formation of ice ethylene or propylene glycol antifreeze
should be added to the water in the following percentages:
The water flow rate must correspond to the value stated in the technical specifications or in the selection software.
The conditions specified in the table do not guarantee anti-freeze protection with the machine operating in bypass mode
between water delivery and return, and with the machine water inlet and outlet fittings shut off.
For uses with setpoints below 5°C reduce the LS parameter and adjust the ALL parameter as appropriate.
For water outlet temperatures lower than 6 °C you must add a suitable quantity of antifreeze solution.
5.4 Limit operating conditions
(1) For temperatures below +5°C use antifreeze solutions (see 5.3 “Freeze protection” ).
5.5 Plumbing connections
It is recommended to insert a filter of “Y” type on the water inlet connection, in order
to stop eventual impurities of water which could cause big damages to the pump.
1.Connect the chiller to the water piping. See the overall dimension drawings for the
size and type of connections.
2.Provide two cocks (inlet and outlet) to by-pass the machine for maintenance
purposes without having to empty the water circuit of the user.
3.Fill the water receptacle by unscrewing the plug of the receptacle and filling the
circuit with water (for example using a hose connected to the cock) until the level in
the receptacle is about half-way between the min. e max. indicated levels. The filling
of tank before starting-up the unit is very important as the pump can not operate
without water.
The receptacle used for filling the circuit acts as an open expansion tank. It is therefore
necessary to pay attention to the volumes and dimensions in play.
Ambient T up to
[°C]
Ethylene Glycol
[% by weight]
Propylene Glycol
[% by weight]
000
-5 15 18
-10 25 27
Water outlet T up to
[°C]
Ethylene Glycol
[% by weight]
Propylene Glycol
[% by weight]
Standard machine
700
32020
02025
Special machine
-3 25 30
-5 30 30
Minimum Maximum
Ambient air temperature °C 5 45
Evaporator water inlet temperature °C 5 35
Evaporator water outlet temperature °C 0(1) 30
To Next Page
Loading...
