Figure #7
Steam Distributor Location
6'
Min.
6'
downward slope to the distributor will result in poor condensate drainage and “spitting” of condensate in duct. See Figure #9.
Figure #9
Leveling Distributor
Min.
Mount Steam Distributor
At Least 6' (2 M) From Elbow
Multiple Steam Distributors
Can Reduce This Distance
5. | Exercise extreme caution when installing in |
| fiber glass or internally lined ducts. |
6. | High positive or negative static pressure ducts |
| or plenums have special requirements. High |
| positive static pressure ducts may require the |
| unit to be fitted with a fill cup extension kit. |
| High negative static pressure ducts will likely |
| require the drain rate of the humidifier to be |
| increased to compensate for the reduced |
Support
(If Needed)
Wrong
Correct
Always
Mount
Level
Wrong
| drainage caused by the suction. |
7. | Vertical downflow ducts may induce an |
| artificial static pressure necessitating a fill cup |
| extension kit. |
8. | Low temperature ducts below 60 F (15 C), |
| shallow ducts, or branch ducts might require |
| the use of a field supplied condensate drain |
| pan below the steam distributor. See Figure |
| #8. |
Figure #8
Condensate Drain Pan
| SHALLOW DUCT |
DRAIN PAN | TO DRAIN |
| |
| BRANCH DUCT |
DRAIN PAN | |
9.The steam distributor mounting plate is perpendicular to the steam distributor. When the mounting plate is attached to the side of the duct, the distributor is level. An upward or
- 4 -
Figure #10
Distributor Support
| 3/8" Threaded Rod |
| |
| (Field Supplied) |
| |
Duct | Steam Distributor | Hex Nut | |
Factory Attached | |||
|
|
Figure #11
Cutting Duct for Mounting
1. | 2. | 3. |
1.Steam Distributor Mounting Plate
2.Cut Hole In Duct For Insertion Using Template
3.Mount With Four Sheet Metal Screws