Mark COLDSTREAM Technisches Handbuch Seite 9

Provide an efficient earth connection.
The unit is supplied with an electrical switch box for the connections, this is placed on the external
part of the unit. It contains a main power inlet switch and a domino for the remote control module
connection. The unit is supplied also with a remote control module to be installed inside the building.
For connection to the power supply, use a multipolar cable + T (earth) according to directives in
force.
Comfort line: For connection to the remote control device use shielded data cable type 20 AWG - 5
poles with a minimum section of 0,50 sq. mm – Maximum length of 25 meters.
Basic line: For connection to the remote control device use multipolar cables according to directives
in force. Perform connections as shown on the wiring diagram enclosed in this manual or inside the
on-board electrical box.
It is absolutely necessary to maintain the polarity of the electrical phases and the numbers on the
wires/terminals.
3.5 Connection to the water supply
The ColdStream cooling unit is connected to the water supply by a 3/8" sleeve attachment found on
the lower part of the equipment, it is advisable to provide a water tap at the water inlet to run dry
the plant before winter.
Insert a sand filter in the water supply plant.
The water piping must guarantee a minimum capacity of 5 -10 Lt/minute at a pressure of 1.5 - 3 bars.
(maximum pressure allowed: 6 bars).
It is advisable to install the water piping inside the building, to protect it from freezing during winter,
otherwise, insulate it adequately.
It is advisable to use potable water, hardness not more than 27°f and not less than 7°f. If hardness is
more than 30°f, insert a water softener system into the water supply plant. Don't use demineralized
water.
The unit is also equipped with a Ø60 mm sleeve to discharge water.
Proceed to connect the 3/8" connection to the main water supply.
DO NOT use excessive force on the sleeve during its connection to
the water supply.
Connect the supplied flexible hose (on request for Basic line)
according to the situation found at the installation site as mentioned
further on, fix the hose by using a hose clamp.
1st Situation: If a discharge system is present, connect the tube to the
dis-charge according to the regulations in force regarding hygiene in
the country where the unit is installed.
2nd Situation: If no discharge system is present, place the hose in the
best way avoiding any bends.
When connecting the discharge hose, DO NOT use excessive force
on the sleeve and make sure that the sleeve does not rotate.
EN
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