18
H. Free Air Vented Drain Line
NOTICE:
Furnishing and installing drain lines and drainpipe is the responsibility of the Installer/Owner.
The following restrictions and requirements are critical to the safety of personnel and
equipment, and must not be violated under any circumstances:
1. The drain lines must be installed in compliance with the
Food Code
(latest edition) of the Food and
Drug Administration (FDA), and any other applicable national, state, or local codes and regulations.
2. The drain line must be free air vented, have gravity flow from the appliance, and terminate
outside the perimeter of the appliance.
3.
Free air venting requires a minimum 1” clearance between the end of the drain line and the top of
the floor drain. Refer spec sheet for more details.
4. Do NOT install the appliance directly over a drain. Steam rising up out of the drain will adversely
affect operation, hamper cooling air circulation, and damage electrical and electronic components.
5.
Do NOT connect the appliance’s drain connection to any drain material that cannot sustain 180
o
F.
6. Do NOT connect any other drain from any other equipment to the drain line of this appliance.
7. Do NOT connect the drain outlet extension line directly into a floor drain or a sewer line.
8.
Do NOT connect this appliance’s drain directly to drains or to the plumbing of any other equipment.
9. Do NOT install a trap or shutoff in the drain line.
10.
Drainpipe Size and Length Guidelines:
•
Do NOT make a drainpipe outlet extension more than 12 feet long.
•
Do NOT use more than three elbows.
•
Up to 6’ pipe:
1 1/2-inch pipe and fittings are acceptable.
•
Up to 2 elbows:
1 1/2-inch pipe and fittings are acceptable.
•
6’ to 12’ pipe:
2-inch pipe and fittings are required.
•
3 elbows on any extension:
2-inch pipe and fittings
are required.
11. Refer to Figure 1-3 and 2-13: Connect the drain to the
appliance.
a.
While assembling the pipes and fittings of the drain
outlet extension, use non-hardening pipe thread
sealant.
b.
Thread fittings together FINGER TIGHT ONLY! DO
NOT USE A WRENCH!
DEATH, INJURY, EQUIPMENT and PROPERTY DAMAGE
will result from improper installation of drain outlet lines.
Install free air vented drain lines as described in this manual.
Figure 2-13
Typical Drain Layout
