Trox Technik X-CUBE Ex, Руководство по транспортировке и установке

Страница: 50 / 160

Optimum ventilation
For the best possible ventilation, we recommend
installing on-site ventilation equipment at the highest
point of the system; see
Ä
on page 37 .
1. Ensure that the flow and return connections are
correct.
2. Check that fittings are correctly installed.
3. Flush the system to remove any contamination.
4. Open vents (unless automatic vents have been
installed).
Evaporators: As soon as you open the heat
exchanger connection, the contained nitrogen
shield gas content should escape with a
hissing sound. The absence of this sound indi-
cates a leak which has to be fixed before com-
missioning.
5.
For glycol water mixtures we recommend
ready-to-use formulations. See the order-spe-
cific air handling unit data sheet from TROX for
the mixing ratio.
The correct mixing ratio is important:
– Too much glycol will impair performance
– Too little glycol may lead to frost damage
.
Only use one of the following glycols for the air
handling unit:
– Propylene glycol
– Ethylene glycol
Slowly pour the heat transfer fluid into the heat
exchanger at the lowest point in the system. As
you fill the system, check that all external and
internal screw joints and connections are tight.
6. Vent the heating coil/cooling by opening the upper
spigot and the bleed screw.
If the air heater is not properly vented, air bub-
bles may form and impair the performance.
7. Close any vents.
8. Clean the condensate drip tray and drain.
9. Set up the droplet eliminator.
10. Fill the drain trap with water.
NOTICE!
Risk of damage to property!
– When you tighten thread connections, be sure to
use a suitable tool (e.g. water pump pliers) to
counter the tightening force as otherwise you
may inadvertently damage the parts.
11. Check the flange screw joints and tighten them if
necessary.
ð
The heating coil/cooling coil has been set up.
6.3.5 Run around coil system
The run around coil system must only be put into opera-
tion after the entire system has been professionally con-
nected and checked (both hydraulic and electrical sys-
tems). These checks have to be recorded, and the
results have to be available at the time of commis-
sioning.
Heat transfer fluids with glycol
WARNING!
Health risk from heat transfer fluids that contain
glycol!
The heat transfer fluids in the heating coil, cooling
coil and run around coil system contain glycol, which
can damage your health if it comes into contact with
your skin, if you swallow it or if you inhale the vapour
or mist.
– Avoid contact with heat transfer fluids that con-
tain glycol.
– Work must only be carried out by skilled qualified
refrigeration technicians, HVAC technicians or
the
Ä
TROX Technical Service .
– Do not eat, drink or smoke while handling heat
transfer fluids that contain glycol.
– Wash your hands when you interrupt or finish
your work.
– If you have come into contact with a heat transfer
fluid that contains glycol, follow the first aid
instructions given on the safety data sheet for the
heat transfer fluid.
– When you have to handle a heat transfer fluid
that contains glycol, wear the personal protective
equipment specified in the safety data sheet for
the heat transfer fluid.
Initial commissioning
Setting up and adjusting AHU casing units > Run around coil system
Air handling unit X-CUBE Ex 50