Pressure Switch; Checks - Carel gaSteam 45 Manual Del Usuario

Example: combined air intake and fl ue gas outlet
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Fig. 3.e
3.5.1 Installation of the appliance with air intake from the room (type B)
The gaSteam humidifi ers may be also installed as type B appliances, that is, with the air intake from
the room where the appliance is installed, as long as this complies with the legislation and standards in
force.
The maximum pressure drop allowed along the 80 mm diam. air intake pipes/fl ues is:
- for the gaSteam 45: -50...90 Pa (-0,50...0,90 mbar / -0.007...0.013 PSI);
- for the gaSteam 90: -50...82 Pa (-0,50...0,82 mbar / -0.007...0.012 PSI);
- for the gaSteam 180: -50...95 Pa (-0,50...0,95 mbar / -0.007...0.012 PSI).
To calculate the maximum possible length of the pipes, refer to the values in Table 3.d.
IMPORTANT WARNING: a condensate collection section (part 6) or an appropriate drain (part 9) must
be installed in fl ues longer than 2 m.

3.5.2 Pressure switch

the pressure switch is used to check that there is no fl ue gas return when using a shared chimney (see
"outlet with fl ue manifold").

3.6 Checks

The following conditions represent correct water connections:
• installation of a shut-off tap in the supply water line;
• presence of a mechanical fi lter in the supply water line;
• water temperature and pressure within the allowed values;
• drain hose resistant to operating temperatures of 100°C (212 °F);
• minimum inside diameter of the drain hose 40 mm (1 1/2 inch);
• minimum slope of the drain hose greater than or equal to 5°;
• adding the inspection section with condensate drain connection.
IMPORTANT WARNING: when installation is completed, fl ush the supply pipe for around 30 minutes by
piping the water directly into the drain without sending it into the humidifi er. This will eliminate any scale
or processing residues that may cause foam when boiling.
independent outlets UG180
gaSteam HARDWARE +030220538 - rel. 1.4 - 22.01.2008
Example: combined fl ue gas outlet
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outlets with fl ue manifold UG180 (EXHM803120)
Fig. 3.d
Fig. 3.f
independent outlets UG45-90
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