22
American Dryer Corp.
113226 - 11
IMPORTANT:
Pipe joint compounds that resist the action of natural gas and liquid propane (L.P.) gas
must be
used.
IMPORTANT:
Test
ALL
connections for leaks by brushing on a soapy water solution (liquid
detergent works well).
WARNING: NEVER TEST FOR LEAKS WITH A FLAME!!!
IMPORTANT:
The dryer and its individual shutoff valve
must be
disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of
1/2 psig (3.5 kPa).
NOTE:
The dryer
must be
isolated from the gas supply piping system by closing its individual manual
shutoff valve during any pressure test of the gas supply system at test pressures equal to or less
than 1/2 psig (3.5 kPa).
H. STEAM INFORMATION
It is your responsibility to have
ALL
plumbing connections made by a qualified professional to ensure 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.
NOTE:
The 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]).
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.
