Drain Line Connections
To allow easy access to overload reset button, the disposer
plumbing should be connected with the electrical control
box facing the operator.
When connecting the drain line, place the “P-trap” as close
to the disposer outlet flange as possible. Do not connect the
drain line to a grease trap, interceptor, or drum trap.
All horizontal runs should be as short as possible, with a
minimum fall of 1/4-inch per foot.
Water Supply Connections
When connecting the disposer to the incoming water supply,
use as few elbows and tees as possible. Connect to the cold
water line only. All water line fittings are 1/2" NPT except the
sink bowl nozzles (1/2" compression).
Install the flow control valve, water solenoid valve, and the
syphon breaker according to the direction of the flow arrows
marked on each valve body (see Figure 9).
NOTE:
A syphon breaker must be installed above the sink
flood plane per local plumbing codes.
Plumbing
6
Property Damage
• The single phase Mini Waste Xpress is wired for 208-230v.
To operate at 115v the auger motor must be re-wired as
shown in Figure 11-5.
• The three phase Mini Waste Xpress is wired for 460v or
208-230v. The wiring information for each is shown in
Figure 11-6.
Property Damage
These plumbing instructions were written for an experi-
enced competent installer. If the installer is not experi-
enced in plumbing installation, In-Sink-Erator recommends
that competent professional assistance is sought. Damage
to the disposer or accessories as a result of improper
installation is not covered under warranty. All installations
must comply with local plumbing codes.
Disposer
Water Flow
Drain Line
GPM (Liters)
Diameter
SS-50
3
(11)
1 1/2"
SS-75
3
(11)
1 1/2"
SS-100
5
(19)
1 1/2"
SS-125
5
(19)
2" NPT
SS-150
7
(26)
2" NPT
SS-200
7
(26)
2" NPT
SS-300
8
(30)
3" NPT
SS-500
8
(30)
3" NPT
SS-750
10
(38)
3" NPT
SS-1000
10
(38)
3" NPT
Table 2: Recommended Cold Water Flow and
Drain Line Diameter
START/STOP
SWITCH
SOLENOID VALVE
SHUT-OFF
VALVE
(NOT SUPPLIED)
SYPHON
BREAKER
FLOW
CONTROL
WATER INLET
CONNECTION
(OPTIONAL)
SINK
DISPOSER
1/2" NPT
COLD WATER SUPPLY
ELECTRICAL SUPPLY
Figure 9
Routing Water Flow
.• In a trough system, route all water flow to the end of the
trough to flush food waste.
• In a sink bowl system with an SS50 to SS-125 (3-5 GPM),
route all water through the sink bowl (see Table 2).
• In a sink bowl system with an SS-150 to SS-1000
(7 - 10 GPM), route water through the sink bowl and the
disposer body inlet.
