Install
Install
Install the
the
the Optional
Optional
Optional System
System
System Stop
Stop
Stop
Pneumatic
Pneumatic
Pneumatic Input
Input
Input Kit
Kit
Kit
The optional System Stop Pneumatic Input Kit
26B414 provides a pneumatic means to signal the
HydroShield system to stop. This contact is normally
open, but turns the system off when activated with a
pressure above the set pressure.
If the input is read as CLOSED, it stops system
operation and puts the system into Off mode. If the
input is read as OPEN, the system operates normally.
The optional System Stop Air input uses a pressure
switch to detect the pneumatic signal.
The optional System Stop Air pressure switch does
not come pre-installed. Purchase and install kit
26B414 to use the optional System Stop Air input.
1.
Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
.
2.
Install two bulkheads in the system.
The location is represented by A12 in
Pneumatic Connections, page 109
. Both
locations are labeled with the following red stop
symbol
:
• Install one bulkhead into the bottom of the
control panel (14).
• Install one bulkhead on the right side of the
cabinet.
3.
Mount the air pressure switch to the DIN rail
(436) to the right of the other pressure switch(s),
as shown in the following figure.
Figure 21 Port Connections for Kit 26B414
4.
Remove the wires in the existing terminal blocks
and install in the pressure switch ports as shown
below:
Pressure
Pressure
Pressure Switch
Switch
Switch Port
Port
Port
Terminal
Terminal
Terminal Block
Block
Block
NO
3
COM
4
Air
Air
Air Pressure
Pressure
Pressure
System
System
System Stop
Stop
Stop Air
Air
Air State
State
State
Less than 70 psi (0.5
MPa, 5.0 bar)
System Stop Air
inactive (system run)
Greater than 70 psi
(0.5 MPa, 5.0 bar)
System Stop Air
activated (system
stop)
5.
Remove unused terminal blocks after connecting
the wires to the pressure switch ports.
6.
Connect approximately 1 foot of 5/32" tube from
the pressure switch to the bulkhead on the inside
of the electronics panel.
7.
Connect approximately 2 feet of 5/32" tube from
that bulkhead on the electronics panel to the
bulkhead on the side of the unit.
3A8493A
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Содержание HydroShield WABL00
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