Page 9 - F10-BPS-YZ101B-Installation-Manual

Pressurization Unit Operation

1. Ensure Protected Enclosure Power is OFF, Enclosure 6. Confirm protected enclosure “Safe” pressure is stable.
Pressure Control Regulator is closed, Protective Gas Energize protected enclosure equipment.
Supply is ON and alarm system is activated (if utilized). 7. Loss of “safe” pressure requires immediate attention.
2. If utilized, test Purge Vent for proper operation. See “Unit Protected enclosure power should be deenergized if
Set Up” on page 8. “Safe” pressure cannot be restored within a reasonable
3. Remove all Dust from protected enclosure. amount of time.
4. Close and Seal Protected Enclosure.
5. Slowly turn Enclosure Pressure Control Regulator CW
until a “Safe” 0.5” w.c. reading is shown on the Enclosure
Pressure Gauge.

Enclosure Pressure
Gauge

Enclosure Pressure
Control Regulator

Unit Start Up
Instructions

Optional EXP
Pressure Switch

Model YZ101B-CII-L-U
Less Pressure Switch
Front View

Model YZ101B-CII-W or B-V
With Pressure Switch
Front View

© 2018 - Best Purging Systems Corporation BPS YZ101B IOM-R1.0 Page 9 of 14