Sewage control panels and switches – Xylem Wastewater (Technical Manual) User Manual

Page 28

PAGE 28

Wastewater

Goulds Water Technology, Bell & Gossett,

Red Jacket Water Products, CentriPro

There are two basic switches used in sewage and effluent systems. Single-action or narrow-angle float switches perform one function

(on or off). They operate over a range of 15º. Wide-angle, or double-action float and diaphragm switches perform two functions (on

and off). Wide-angle float switches operate over a 90º range and diaphragm switches on a 6” rise in water level.

Control panel wiring diagrams refer to 3 float and 4 float systems, this terminology refers to the use of single-action switches. The fol-

lowing chart shows how many of either type switch to use with different control panels.

Duplex Control Panels

Typical Duplex panels use the following switch set-ups depending on the switch type you use. Most Duplex control panels have a stan-

dard high level alarm circuit with a flashing light, most have a horn or bell. Once it turns On - the alarm must be manually reset (turned

off) on Duplex panels.
Using a Single-action or Narrow-angle Switch requires:
Three Float Panel Wiring

Four Float Panel Wiring

#1 Bottom

Pumps Off

#1 Bottom

Pumps Off

#2 Middle

1st Pump On

#2 2nd

1st Pump On

#3 Top

2nd Pump & Alarm On

#3 3rd

2nd Pump On

#4 Top

Alarm On

Using Double-Action or Wide-Angle Switches; A2D23W, A2E21, A2E22, A2E23,

A2D11, A2D31 or A2S23 requires:
Three Float Panel Wiring

Four Float Panel Wiring

#1 Bottom

1st Pump On/Both Off

#1 Bottom

1st Pump On/Both Off

#2 Top

2nd Pump and Alarm On

#2 Middle

2nd Pump On

#3 Top

Alarm On

Simplex Control Panels

Only some Simplex panels have alarms. This is why the switch quantity requirements vary by simplex panel model.

All of our SES panels have high level alarms.
Using a Single-action or Narrow-angle Switch requires:
Simplex Panel with Alarm

Simplex Panel with No Alarm

#1 Bottom

Pump Off

#1 Bottom

Pump Off

#2 Middle Pump On

#2 Top

Pump On

#3 Top Alarm On/Off

Using Double-Action or Wide-angle Switches requires:
Simplex Panel with Alarm

Simplex Panel with No Alarm

#1 Bottom

Pump On/Off

#1 Bottom

Pump On/Off

#2 Top

Alarm On/Off

NOTE: 1

pump may also be referred to as “Lead” pump,

pump may be called “Lag” pump.

Sewage Control Panels and Switches