Accessories; Mechanical Thermostat + Solenoid Valve Kit (Optional); Level Indicator + Solenoid Valve; Maintenance - TEXA BLU Notice De Montage Et D'entretien

ENG

10. Accessories

In order to optimise the heat exchange on the
basis of the temperature required inside the
enclosure, avoid using water unnecessarily
and allow correct condensate management,
thermostats and/or level indicators can be
incorporated to control an ON/OFF solenoid
valve which will allow or inhibit the water flow.
10.1 Mechanical thermostat + solenoid valve
kit (optional)
The solenoid valve is a two-way normally closed
model controlled by a mechanical thermostat
which stops the water flow when the set
temperature is reached (figure A F.04). The
thermostat is factory set to 35°C; if you wish to
regulate the temperature of the heat exchanger,
shut off the power supply and remove the heat
exchanger case, then adjust the thermostat
regulation screw (figure F.04).
The thermostat can be set between 20°C and
46°C. For temperatures outside this range,
contact our technical assistance department.
The thermostat has a hysteresis of 4°C, therefore
valve opening will be enabled at a temperature
of 4°C above the set-point.
After adjustment, refit the panel and restore the
power supply.

10.2 Level indicator + solenoid valve

The level indicator operates when the level of
liquid inside the condensate collection tank has
reached its upper safety limit.
The solenoid valve is connected to the level

13. Troubleshooting

Malfunction Conditions
1) None of the fans are working
THE EXCHANGER
IS NOT COOLING
2) The fans are working
switch which closes it in the event that the
condensate or broken pipes make the level in
the condensate collection tank increase beyond
the maximum.

11. Maintenance

Warning! Caution! Before embarking on
any maintenance work, cut the power to the
enclosure.
The only maintenance required is as follows:
Operation Frequency
Check the fans:
overheating or excessive
vibration
Any repairs that may need doing must only
be performed by specialised and authorised
personnel, using only original spare parts.

12. Technical information

12.1 Operating principle

The operating principle of air-water heat
exchangers is based on the transfer of heat
between an air flow and a water flow of different
temperatures, via a surface with a high coefficient
of thermal exchange (figure F.09).
The cooling water (supplied by the user) flows
through the tubes of a heat exchanger battery.
The fan channels the air from the enclosure
through the heat exchanger battery, where it
gives up heat to the (colder) water.
The air, which is now cooled, is then reintroduced
into the enclosure.
8
Correct use of air-water heat exchangers requires
the essential condition that the temperature of
the cooling water is always lower than that of the
enclosure temperature.
The greater the difference between the two
temperatures, the greater the quantity of heat
exchanged.

12.2 Safety devices

The fans have an internal thermal cut-out switch
that stops them in the case of overheating.
Every 6
N.B.:
months Keep the unit's documentation in a safe, dry
place.
Remedy
Eletricity is not reaching the exchanger: check there is
voltage as well as closing of door and switches.
Check the water temperature is adequately lower than
the inside temperature.