113372 - 16
Telephone: 01422 822282
27
OPERATING STEAM PRESSURE
Maximum
125 psig
*
862 kPa
Heat Input (Normal Load)
7.2 Boiler hp
Consumption (Approximate) @ 125 psi (8.62 bar)
275 lb/hr
124.7 kg/hr
H. STEAM INFORMATION
It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the
steam plumbing installation is adequate and conforms with local and state regulations or codes.
Care must be exercised when leveling steam dryers into final position. After leveling the dryer, check the
downward pitch of the heat exchanger from front to rear with a level. Likewise, check the downward pitch of
the return condensate manifold toward its outlet part. Absence of these downward pitches will result in probable
water hammer and premature heat exchanger fracture and leakage.
The presence of condensate in the steam will cause water hammer and subsequent heat exchanger failure. The
steam supply connection must be taken from the top of a well-dripped steam main. If the supply run-out to the
dryer exceeds 20 feet (6 meters), it should be dripped just before the control valve with a proper trap and dirt
pocket.
IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in
component failure, which will VOID THE WARRANTY.
NOTE: In standard format this dryer is manufactured with a pneumatic (piston) damper system, which
requires an external supply of air (80 psi +/- 10 psi [5.51 bar +/- 0.68 bar]). This dryer may
be provided with an optional steam solenoid valve, in which case, no pneumatic steam damper
system is provided.
1. Steam Coil pH Level
The normal pH level for copper type steam coils must be maintained between a value of 8.5 to 9.5. For
steel type steam coils the pH level must be maintained between a value of 9.5 to 10.5. These limits are set
to limit the acid attack of the steam coils.
IMPORTANT: Coil failure due to improper pH level will VOID THE WARRANTY.
2. Steam Requirements
Shaded areas are stated in metric equivalents
* The minimum operating pressure for optimum results is 100 psig (689.47 kPa).
3. Installation Instructions
To ensure an adequate supply of steam is provided, be sure that the steam supply line and steam return line
are sized and laid out as stipulated in this manual. Inadequate steam supply line and steam return line or
improper steam plumbing will result in poor performance and can cause component failure. Clean, dry
steam must be provided to the dryer.
IMPORTANT: Steam coil failure due to water hammer by wet steam will VOID THE WARRANTY.
Summary of Contents for D75
Page 52: ...Part No 113372 16 11 12 15 ...
