V-09 05/2014 - 22 -
•
The appliance complies with the relevant regula-
tions (basic plumbing code BOCA)
Attention
Use pipes capable of withstanding steam tempera-
ture, don't use hoses
• Installation kits including drain copper piping
are available from Rational
• Welding of drain pipe to the units drain is not per-
missible (welding can cause damages to the unit)
• 2" (50 mm) pipe with constant gradient
(min. 5% or 3°); do not reduce the diameter of
the pipe.
• Consult local and state codes regarding drain con-
nection. An indirect drain is
recommended pic. 1,2,
RATIONAL includes an internal overflow and venti-
lated drain integrated in the units
• Where there is an existing floor drain without air
trap, a clear outflow of 1” must be provided.
pic. 3
• We recommend to connect every unit to a sepa-
rate drain.
• Units 6x1/1GN up to 10x2/1GN can be connected
either to a wall drain or to a floor drain
• Units 20x1/1GN or 20x2/1GN can only be con-
nected to a floor drain.
Option:
For reducing steam escape via the ventilation pipe
a condensation diverter for 6x1/1GN, 6x1/1GN or
10x1/1GN units or an additional ascending pipe can
be used. See page 25
Note drainage dimensions: short-term pumped
discharge volume of steam generator 0,18 gal/sec.
(0.7 l/sec)
• Average waste water temperature: 149°F (65 °C)
• Applicable standard: DIN 1986, Part 1
Attention: The center height drain pipe of table mod-
els is 3 1/2” (88 mm) and floor models is
2 7/8” (70 mm).
not to be placed
on unit drain
2“copper
pipe
Air gap per
local code
Clamped
to stand
approx. 24“
3x45°
1
Ø 50mm (2”)
70mm
(2 3/4“)
max. 1m
(3 ft.)
min. 3° / 5%
2
3
Drain connection
Option table models:
Using 4” (100 mm) legs for extended space under-
neath unit.
Height adjustable transport trolley, see page 24
Option floor models:
Using leg extension for more space underneath unit.
Install height extension for mobile oven rack see
page 25.
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