Installation Of The Steam Hose; Installation Of The Condensate Drain Pipe; Checks - Carel gaSteam 45 Manual Del Usuario

4.3 Installation of the steam hose

• The humidifi er must be connected to the distributor using a hose suitable for this purpose, such as the
CAREL fl exible hose.
• The use of unsuitable pipes or hoses may cause weakening and cracking and consequently steam
leaks.
• The layout of the hose must be such as to avoid the accumulation of condensate, with consequent
noise (gurgling) and reduction in effi ciency; the path of the hose must exploit gravity to drain the
condensed steam back to the boiler or to the distributor.
• Pockets or traps must thus be avoided, in that the condensate may be trapped; attention should also
be paid to avoid choking the hose due to sharp bends or twisting (see Fig. 4.c).
• Using screw clamps, tightly fasten the ends of the hose to the humidifi er and steam distributor fi ttings,
so that they do not slide off due to the effect of the temperature
• According to the position of the steam distributor, one of two following solutions may be adopted for
the path of the hose:
1. rise upwards with a vertical section of at least 300 mm (12 inch), followed by a curve with a mini-
mum radius of 300 mm (12 inch) and fi nally a downwards section with a constant slope of no less
than 5° (see Fig. 4.d);
2. for short paths (less than 2 m (80 inch)), curves with a minimum radius of 300 mm (12 inch),
followed by a rising section with a slope of no less than 20° (see Fig. 4.e).
IMPORTANT WARNING: the backpressure exerted by the steam hose should not exceed half of the
maximum allowable for the humidifi er. Generally this means a hose with a length of around 4 metres;
for special applications, contact CAREL.

4.4 Installation of the condensate drain pipe

• Due to the re-condensation of the steam produced, condensate forms inside the steam hose and the
distributor that must be removed to avoid gurgling and a reduction in effi ciency.
• The condensate is drained by gravity using a hose that is suitable for the purpose. The use of unsuita-
ble tubing may cause weakening and cracking with consequent steam leaks.
• To avoid the release of non-condensed steam from the condensate hose, a drain trap must be made
by looping part of the drain hose.
• The end of the condensate hose can be connected to the nearest drain pipe, with a minimum slope of
5° to assist correct downfl ow (see Fig.4.e).
WARNING: for the unit to operate correctly, the drain trap must be fi lled with water before starting the
humidifi er.
As per the UNI11071 standard.

4.5 Checks

The following conditions represent correct installation of the steam hose:
• the position of the steam distributor complies with the instructions provided in this chapter, the steam
outlet hoses are aimed upwards and the distributor has an upwards slope of at least 2°;
• the ends of the hoses are fastened to the fi ttings using metal hose clamps with fastening screws;
• the curves in the hoses are suffi ciently wide (radius > 300 mm (12 inch)) so as to not cause bending
or choking;
• the steam hose has no pockets or traps for condensate to form;
• the paths of the steam and condensate hoses comply with the instructions provided in this chapter;
• the length of the steam hose should not exceed 4 m; for special applications, contact CAREL;
• the slope of the steam hose is suffi cient to allow correct dragging of the condensate (> 20° for the
upward sections, > 5° for the downward sections);
• the slope of the condensate hose is at least 5° at every point;
• the condensate hose always follows a downward path and features a drain trap (fi lled with water
before starting operation) to prevent steam being released.
gaSteam HARDWARE +030220538 - rel. 1.4 - 22.01.2008
Fig. 4.c
Fig. 4.d
Fig. 4.e
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