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NOTE
: A water column (W.C.) test pressure of 3.5 inches (8.7 mb) for natural gas and 10.5 inches
(26.1 mb) for liquid propane (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.
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!!!
ALL
components/materials
must conform
to National Fuel Gas Code Specifications ANSI Z223.1-LATEST
EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P. Gas) or
LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and
must be
done by a qualified professional. It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the total amount of
ALL
the appliance BTUs being
supplied.
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 assure that the
steam plumbing installation is adequate and conforms with 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
: The MLS-55 is manufactured with a pneumatic (piston) damper system, which requires an
external supply of air (80 PSI ± 10 PSI [5.52 bars ± 0.68 bars]).
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.
Содержание Gas/Electric/Steam ML-55HS
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