Installation Guide

ManualsBrandsInSinkErator ManualsAppliance parts8-3/4 in. Mounting Gasket for Commercial Insinkerator SS100 - SS300

PROPERTY DAMAGE

These plumbing instructions were written for an

experienced competent installer. If the installer

is not experienced in plumbing installation,

InSinkErator 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.

Plumbing Connections

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.

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 route all water through the

sink bowl.

• Table 2 provides Recommended Cold Water Flow and

Drain Line Diameter.

Disposer Standard

Flow Control

GPM (LPM)

Optional

Flow Control

GPM (LPM)

Drain

Line

Diameter

SS-50 3 (11) NA 1-1/2"

SS-75 3 (11) NA 1-1/2"

SS-100 5 (19) 3 (11) 1-1/2"

SS-125 5 (19) 3 (11) 2" NPT

SS-150 7 (26) 5 (19) 2" NPT

SS-200 7 (26) 5 (19) 2" NPT

SS-300 8 (30) 7 (26) 3" NPT

SS-500 8 (30) 7 (26) 3" NPT

SS-750 10 (38) NA 3" NPT

SS-1000 10 (38) NA 3" NPT

Table 2. Recommended Cold Water Flow

and Drain Line Diameter

Figure 9. Installation Diagram