Carel compactSteam CH002V1000, User Manual

Page: 13 / 28

compactSteam
Cod. +030221905 – rel 1.0 - 18 Jannuary 2006 13
3.4.2 Steam Hoses
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 down hill. 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 the factory for instructions.
≥
20%
≥
5%
5 FT max.
IF NO TRAP
≥
20%
≥
20%
≥
5%
10 FT max.
20 FT max.
GENTLE BEND
OBSTRUCTION
SUPPORTED STEAM HOSE
AND/ OR COPPER PIPE
NO SLOPE
NO SLOPE
KINKED
NO TRAP
UNDRAINED
ELBOW
UNDRAINED
ELBOW
NO DISTRIBUTION
PIPE DRAIN
SAG
≥
5%
20 FT max.
WITH TRAP
DRAINS
DRAINS
YES
NO
DRAINS
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 2 1/ 2” PER FOOT;
• SLOPE PIPING DOWN IN THE DIRECTION OF STEAM FLOW AT 5% OR GREATER, WHICH MEANS 3/4” PER FOOT;
• MAX. LENGTH OF RUBBER STEAM HOSE IS 20 FT. INSULATED COPPER TUBING MAY BE USED UP TO 40 FT.
TYPICAL INSTALLATION
WHEN UNIT IS ABOVE
THE DISTRIBUTOR PIPE
≥
20%
5 FT max.
IF NO SLOPE
3F
T m
ax
.
Fig. 3.m
IMPORTANT: Maximum length of rubber steam hose is 10 feet. Insulated copper tubing may be up to 20 feet. In all cases, minimize sharp bends and elbows – use
2-45° elbows instead of 90°s.
Hose size = 7/8” (22 mm).
Hose size = 1-1/4” (30 mm).