Page 7 - F10-BPS-YZ101B-Installation-Manual

P. 7

Mounting Set Up

Unit Mounting Instructions Unit Tubing Instructions

1. Carefully read “Protected Enclosure Criteria” and 1. Carefully read “Protected Enclosure Criteria” and
“Enclosure Connection Requirements” before proceeding. “Enclosure Connection Requirements” before proceeding.
2. Determine the Mounting configuration for the purge unit. 2. The following instructions are for Units mounted external
3. Firmly secure the unit mounting flange, if utilized, to the to the Protected Enclosure. Consult factory for units
unit face plate using the hardware provided. which are mounted inside or through the face of the
Protected Enclosure.
4. Drill and ream four mounting holes in the protected
enclosure. 3. Connect 1” Protective Gas Supply Header to Unit Supply
Connection using 3/8” .035 welded or seamless wall
5. Based on “Enclosure Connection Requirements,” drill stainless steel, fully reamed tubing. Protective Gas
and ream a 37/64” hole in protected enclosure, install Supply tubing should not exceed 15 feet length and 5
3/8” Enclosure Supply Bulkhead fitting. NOTE: Protected bends.
Enclosure Supply should be installed at extreme opposite
corner from part # PV-3 Purge Vent (if utilized) and 8” 4. Connect Unit Enclosure Supply Connection to the
from the Enclosure Reference Connection. Enclosure Supply bulkhead fitting using 3/8” .035 welded
or seamless wall stainless steel, fully reamed tubing.
6. Next, drill and ream a 29/64” hole in protected enclosure, Enclosure Supply tubing should not exceed 5 feet in
install 1/4” Enclosure Reference Bulkhead fitting. length and 5 bends.
7. If utilized, install PV-3 Purge Vent at extreme opposite 5. MULTIPLE ENCLOSURE CONNECTIONS ONLY.
corner from the Enclosure Supply Connection. Connect Multiple Enclosure Protective Gas Supply Piping
(WARNING: The PV-3 Purge Vent is gravity operated (1 1/4” rigid pipe, fully reamed) from Protected Enclosure
and MUST be mounted in a true vertical position.) #1 to Protected Enclosure #2. Repeat procedure for
8. Install the PV-3 Purge Vent Mounting Hub through a connection between Protected Enclosure #2 and #3.
1-1/4” hole on the Protected Enclosure. Protective Gas Supply piping should not exceed 10 feet
length and 5 bends.
9. Secure the Purge Vent from inside the Protected
Enclosure using the Purge Vent Mounting Nut. 6. Connect Unit Enclosure Reference Connection to the
10. Secure Purge Unit Mounting Flange to protected Enclosure Reference bulkhead fitting using 1/4” .035
welded or seamless wall stainless steel, fully reamed
enclosure using hardware provided.
tubing. Enclosure Reference tubing should not exceed
20 feet length and 5 bends.

Typical Mounting Configurations

Left Mount Top Mount Bottom Mount Frame Mount Right Mount

Enclosure Warning Label(s)

Enclosure Warning Label (EWL) MUST be permanently affixed on or near all protected enclosure doors, entries and openings.
WARNING - PRESSURIZED ENCLOSURE WARNING NOTICE
ENCLOSURE SHALL NOT BE OPENED UNLESS AREA IS KNOWN TO BE FREE THIS ENCLOSURE CONTAINS HOT COMPONENTS
OF FLAMMABLE MATERIALS OR UNLESS A LL DEVICES HAVE BEEN
DE-ENERGIZED. P OWER SHALL NOT BE RESTORED A FTER ENCLOSURE ENCLOSURE SHALL NOT BE OPENED UNLESS AREA IS KNOWN TO BE FREE
HAS BEEN O PENED UNTIL C OMBUSTIBLE DUSTS HAVE BEEN REMOVED OF FLAMMABLE MATERIALS OR UNLESS A LL DEVICES HAVE BEEN
AND ENCLOSURE HAS BEEN PURGED AND PRESSURIZED IN ACCORDANCE DE-ENERGIZED FOR THE TIME SPECIFIED BELOW.
WITH THE UNIT START UP INSTRUCTIONS. MINIMUM COOLONG TIME:
BEST PURGING SYSTEMS CORPORATION WWW.PURGEIT.COM LA MARQUE, TEXAS USA
AREA CLASSIFICATION PRESSURIZATION TYPE TEMPERATURE CODE
BEST PURGING SYSTEMS CORPORATION WWW.PURGEIT.COM LA MARQUE, TEXAS USA

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