GeneralAire GF-DP030 Steam Manifold Kit Instruction Manual
- July 3, 2024
- GeneralAire
Table of Contents
GeneralAire GF-DP030 Steam Manifold Kit
Product Specifications:
- Installation Options: Bottom Installation Horizontal Duct, Side Installation Horizontal Duct, Side Installation Vertical Duct
- Airflow: 1000 cfm minimum
- Minimum Duct Diameter: 8 inches (200 mm)
- Clearances: 24 inches minimum upstream, 36 inches minimum downstream
Product Usage Instructions:
Steam Manifold Installation (12 & 17.5 Options Available)
For certain applications requiring a longer steam manifold, follow these
steps:
- Select an accessible location on the duct with at least 36 inches of straight duct after the installation point.
- Cut or drill a 2-1/2 inch hole in the duct at the chosen location.
- Apply caulk to the mounting plate of the steam manifold.
- Attach the steam manifold to the duct using (4) #10 sheet metal screws provided.
- Install the end bracket to maintain the correct slope.
Important Notes
- Ensure there is 5 feet (1-1/2 m) of straight return duct downstream for steam absorption.
- Always allow 3 feet (0.9 m) of straight supply duct upstream for steam evaporation.
- Consider longer lengths for turbulent air flow conditions.
- Screws: Maximum diameter M5
- Flange Gasket: Refer to table for dimensions
| Dimensions in mm (inches) | A | B | X | Y |
|---|---|---|---|---|
| Before | 22 (0.87) | 10 (0.39) | 58 (2.28) | 35 (1.38) |
| After | 30 (1.18) | 10 (0.39) | 68 (2.68) | 45 (1.77) |
X, B, Y hole in wall – Optional stainless-steel steam manifold available.
Frequently Asked Questions (FAQ):
Q: What should I do if I have turbulent airflow conditions?
A: In case of turbulent airflow, consider longer lengths for both the
downstream return duct and upstream supply duct to ensure proper steam
absorption and evaporation.
INSTALLATION
Fig. 3.i
STEAM MANIFOLD (12” & 17.5” OPTIONS AVAILABLE)
For certain applications, a longer steam manifold may be required. Select an
accessible location on the duct, allowing at least 36” of straight duct (no
elbows or obstructions) after the point where the steam manifold will be
installed and the clearances can be maintained as per the following drawings.
To mount the steam manifold, cut or drill a 2-1/2” hole in the duct (See Fig.
3.i). Apply caulk to the mounting plate of the manifold. Attach the steam
manifold to the duct using (4) #10 sheet metal screws (supplied). Install end
bracket to maintain correct slope.
IMPORTANT: Allow 5 feet (1-1/2 m) of straight return duct downstream of the
distributor pipe or nozzle for absorption of the steam. Always allow 3 feet
(0.9 m) of straight supply duct upstream of the distributor manifold or nozzle
for evaporation of the steam. Turbulent air flow may require longer lengths.
The return condensate hose from the steam nozzle / steam manifold must be
trapped. Coil the hose into a vertical loop and secure it below the steam
nozzle / steam manifold. This trap prevents steam from being released into the
cabinet. The end of the ¼” ID hose may be run through the knockout at the top
of the humidifier and inserted into the hole located on top of the fill cup.
Optional stainless-steel steam manifold
USA: 25-10 12” or 25-11 17.5” Canada: GF-DP030 Kit 12” or GF-DP045 Kit 17.5”
Formulaire no. 5500-32 Rev C
Code: +07U0092EF REV 3.5 29/12/2022
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