Static Pressure Control (SPC)

For controlling static pressure

The Static Pressure Control (SPC) automatically controls the static pressure in a room by positioning a curtain or inlet.

When the pressure is at the pressure set-point, the SPC maintains the inlet position. When the pressure rises above the set-point, the control opens the inlet for the "open" duration and then pauses for the "idle" duration.

After each "idle" duration, the SPC checks the pressure and then either opens the inlet or closes the inlet (for the preset duration) depending on the pressure.

The SPC is ideal for poultry houses or any building where static pressure is important.

Features

Two relay stage outputs (open/close)
Adjustable pressure set-point
Adjustable pressure differential
Adjustable open/close and idle durations (1 to 900 seconds)
Adjustable high/low pressure alert settings
Manual override to open/close curtains
Lock mode to prevent setting changes
Four-digit LED display and inlet status LEDs
Error code display for troubleshooting
Alarm relay
Overload protection fuse
Rugged enclosure (corrosion resistant, water resistant, and fire retardant)
CSA approval
Two-year limited warranty

Electrical ratings

Input:
Open/close relays:

Fuses:
Alarm relay:

120/230 VAC, 50/60 Hz
6 A at 120/230 VAC, general-purpose (resistive)
1/3 HP at 120 VAC, 1/2 HP at 230 VAC
12 A, 250 VAC ABC-type ceramic
0.4 A at 125 VAC; 2 A at 30 VDC, resistive load
0.2 A at 125 VAC; 1 A at 30 VDC, inductive load

Additional information

SPC user manual (PDF - 223K)
SPC feature sheet (PDF - 122K)
Ventilation control overview (PDF - 35K)

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