Alliance Laundry Systems UL24A118, Руководство по установке и эксплуатации

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Installation
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Steam Connection
IMPORTANT: Insulate the steam supply and
return lines for the safety of anyone operating or
servicing the finisher.
IMPORTANT: Shut-off gate valves must be
installed upstream of the steam solenoid valve and
downstream of each steam trap so components can
be isolated for maintenance or emergency
purposes.
IMPORTANT: All components (solenoid valve,
traps) must be supported to minimize on the
finisher’s steam connections.
Steam Connection Requirements
●
Obtain specific steam service pipe sizes from a
steam system supplier or a qualified steam fitter.
●
To prevent condensate draining from headers to
finisher, piping should have a minimum 12 inch
(305 mm) rise above the respective header.
DO NOT make a steam connection to the header
with a horizontal or downward facing tee or
elbows.
●
Whenever possible, horizontal runs of steam
lines must drain (by gravity) to the respective
steam header. Water pockets, or an improperly
drained steam header will provide wet steam,
causing improper operation of the finisher. If
pockets or improper drainage cannot be
eliminated, install a bypass trap to drain
condensate from the low point in the steam
header to the return.
●
In the steam supply and condensate return lines,
it is recommended that each have a pipe union
and globe valve for disconnection of the steam to
service to finisher.
●
Before connecting the trap and check valve to the
finisher, open the shut-off valve in steam supply
line and allow steam to flow through the finisher
to flush out any debris. This will assure proper
operation of the trap when it is connected.
●
After flushing the system, install a vacuum
breaker, an inverted bucket trap (with built-in
strainer), and a check valve. For successful
operation of the finisher, install the trap 18 inches
(457 mm) below the inlet and as close to the
finisher as possible. Inspect the trap carefully for
inlet and outlet markings and install according to
the trap manufacturer’s instructions. If steam is
gravity returned to the boiler, omit the trap but
install the vacuum breaker and check valve in the
return line near the finisher. Gravity return
requires the entire return plumbing to be below
the finisher steam outlets.
●
Install the union and shut-off valve in the return
line and make the final pipe connections to the
return header.
NOTE: To prevent water hammering, route the
return lines below the steam outlets.
Steam Pressure and Connection Size
UL24*118 UL24*130 UL32*118 UL32*130
Steam Pressure
Minimum - Maximum
120-150 psi
(8-10 bar)
120-150 psi
(8-10 bar)
120-150 psi
(8-10 bar)
120-150 psi
(8-10 bar)
Steam Inlet
1 in.
(25.4 mm)
1 in.
(25.4 mm)
1.25 in.
(31.75 mm)
1.25 in.
(31.75 mm)
Condensate Return
.75 in.
(19.05 mm)
.75 in.
(19.05 mm)
1 in.
(25.4 mm)
1 in.
(25.4 mm)
Table 8