GeneralAire DS50 LC Elite Steam - Manual (Page 14)

DS 50 / DS 50 LC +030222065 Rev. 1.2 14
3.4.3 Steam Hoses
IMPORTANT WARNING: NINETY PERCENT (90%) OF ALL OPERATION PROBLEMS ARE CREATED BY IMPROPER STEAM
PIPING FROM THE HUMIDIFIER UNIT TO THE DUCT DISTRIBUTOR PIPES.
To avoid these problems, remember one simple fact when running the steam hose: steam naturally flows up hill, and condensate
naturally flows downhill. Run the steam hose or piping to avoid any kinks, sharp elbows, or low spots that could collect or restrict the
flow of steam to the distributor pipe, or the flow of condensate back to the humidifier. Support the hose adequately to avoid sags.
The following diagrams are to provide you with some guidelines. If you have a situation you are unsure of, please contact Technical
Support for instructions. Contact information is printed on the back cover.
20%
5%
20% 20% 5%
1,5 m (5 FT max.)
3 m (10 FT max.)
20%
0,
9 m
(3
FT
m
ax
.)
1,5 m (5 FT max.)
1,5 m (5 FT max.)
YES
NO
P - TRAP
NOTE: HEIGHT OF TRAPS MUST BE GREATER
THAN THE DUCT STATIC PRESSURE
NOTES:
• SLOPE PIPING UP IN DIRECTION OF STEAM FLOW AT 20% OR GREATER, WHICH MEANS 65,5mm x 305mm (2 1/2” PER FOOT);
• SLOPE PIPING DOWN IN THE DIRECTION OF STEAM FLOW AT 5% OR GREATER, WHICH MEANS 20mm x 305mm (3/4” PER FOOT);
• MAX. LENGTH OF RUBBER STEAM HOSE IS 3 m (10 FT).
• HEIGHT OF P-TRAPS MUST BE GREATER THAN THE DUCT STATIC PRESSURE.
TYPICAL INSTALLATION
WHEN UNIT IS ABOVE
THE DISTRIBUTOR PIPE
GENTLE BEND
OBSTRUCTION
SUPPORTED STEAM HOSE
AND/OR COPPER PIPE
DRAINS
IF NO TRAP WITH TRAP
DRAINS
IF NO SLOPE
NO SLOPE
NO SLOPE
KINKED
NO TRAP
UNDRAINED
ELBOW
UNDRAINED
ELBOW
NO DISTRIBUTION
PIPE DRAIN
SAG
Fig. 3.m
IMPORTANT: Maximum length of rubber steam hose is 4m (12 feet.). Insulated copper tubing may be up to 6m(20feet) in
length. In all cases, minimize sharp bends and elbows. Use 2 - 45° elbows instead o f 90°s.
Hose inner diameter = 1.18” ( 30 mm); Hose outer diameter = 1-1/2” (40 mm).
Installation Items Included:
Steam hose, 8 feet
Condansate hose, 9 feet.
Hose Clamps, 4.
Steam manifold 12-inch.
Sheet Metal Screws, 4.
Water supply tube kit.
Fill Connector.
Code Valve Ball valve.
Pressure Switch.
GFX50 Humidistat.
Mounting Template.