113375-16 Telephone 01422 822282 15
Operating Steam Pressure
Maximum 125 psig*
862 kPa
Heat Input (Normal Load) 13
Bhp
Consumption (Approximate) 450 lb/hr
204 kg/hr
TYPICAL L.P. GAS INSTALLATION
Steam Information ___________________
It is your responsibility to have all plumbing connections
made by a qualified professional to assure that the gas
plumbing installation is adequate and conforms to local and
state regulations or codes.
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 clean, dry, regulated air 80 psi +/- 10
psi (5.51 bar +/- 0.69 bar). This dryer may be provided
with an optional steam solenoid valve in which case, no
pneumatic steam damper system is provided. Refer to
Steam Damper Air System Connections on the following
page.
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.
Steam Requirements – High Pressure
Inlet _______ 1-1/4” N.P.T. supply line connections –
qty. two (2) at first (top) and third manifold.
Return _____ 1” N.P.T. return line connections –
qty. two (2) at second and fourth
(bottom) manifold.
Shaded areas are stated in metric equivalents
* The minimum operating pressure for optimum results is 100 psig (689.47
kPa).
Installation Instructions
To ensure an adequate supply of steam is provided, be sure
that the steam supply lines and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam
supply lines and steam return lines 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.
Consistent gas pressure is essential at all gas connections.
It is recommended that a 1-inch (2.54 cm) pipe gas loop be
installed in the supply line servicing a bank of dryers. An in-
line pressure regulator must be installed in the gas supply
line (header) if the (natural) gas pressure exceeds 12.0 in
WC (29.9 mb) pressure.
NOTE:
A consistent water column test pressure of 3.5 in
WC (8.7 mb) for natural gas and 10.5 in WC (26.1 mb) for
L.P. dryers is required at the gas valve pressure tap of
each dryer for proper and safe operation.
A 1/8” N.P.T. plugged tap, accessible for a test gauge
connection, must be installed in the main gas supply line
immediately upstream of each dryer.
IMPORTANT: Pipe joint compounds that resist the action
of natural gas and L.P. gas must be used.
Test all connections for leaks by brushing on a soapy
water solution (liquid detergent works well).
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).
!
WARNING
Never test for leaks with a flame!!!
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).
TYPICAL NATURAL GAS INSTALLATION
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