Steam Outlet - Armstrong ERS-LC Series Manual

2.4 STEAM OUTLET

1. Preferably use a flexible steam hose that is heat resistant to a temperature of 212°F(100°C).
Note: when new hoses are installed, a smell of burnt plastic may be present during the first running of the
steam humidifier. This is normal and will eventually diminish.
2. Steam hose selection:
3. ERS-LC humidifiers can operate with a back pressure (P) higher than the atmospheric pressure in the
ducts, but under the following conditions:
• If P is less than 2,157 Pa (220 mm WC/8.6 in WC).
• If P is greater than 2,157 Pa (220 mm WC/8.6 in WC), options are available.
4. For the installation of the steam hose, depending on your environment, please respect the recommenda
tions below and use the appropriate tangential hose clamps.
• Flexible steam hose length 9.84 ft (3 m) max.
• Stainless steel or copper pipe with a slightly larger diameter, grounded. Use a flexible steam hose cuff to
connect the humidifier to the steam distribution pipe. The length of the pipe must be thermally insulated
and should not exceed 19.69 ft (6 m).
The steam hose must be free of kinks and sags to allow for gravity drainage of condensate.
(Provide a pitch of 1" per foot towards the unit.) Make sure that the steam hose is not
leaking. Failure to follow these instructions can lead to serious malfunctions.
Ø 300 mm min./
12'' min.
Fig. A 2-4: Standard installation
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
16
Model
Steam outlet diameter
Steam outlet diameter
Radius of the diameter steam pipe:
• Ø 40 – 16 in. minimum
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ERS-LC ERS-LC
3 to 15 20 to 30
1 1
Ø 40 Ø 40
Fig. B 2-4: Additional drip leg when
steam distribution below humidifier