5
5.0 CARTRIDGE REPLACEMENT PROCEDURE
THE PURIFIER IS A PRESSURE CONTAINING DE-
VICE. DEPRESSURIZE BEFORE REPLACING ANY CARTRIDGE.
5.1 Filter Cartridge No. 0713-2-1
1. Close inlet and outlet isolation ball valves. Depressurize
the filter by slowly opening manual drain as shown.
2. Unscrew the metal collar holding the filter bowl to the
head and remove the filter bowl and collar. Clean the filter
bowl.
3. Unscrew the old filter cartridge and discard. Also discard
the small o-ring that seals the filter cartridge top cap to
the filter assembly head.
4. Insert small replacement o-ring on top of new replace-
ment filter cartridge and screw replacement filter
cartridge into filter assembly head. It is only necessary to
finger tighten the filter cartridge into position to insure
the seal. DO NOT WRENCH TIGHTEN.
THE FILTER CARTRIDGE SHOULD NEVER BE
HANDLED BY ITS OUTSIDE FOAM COVER. DAMAGE CAN RE-
SULT. WHEN INSTALLING A REPLACEMENT FILTER CARTRIDGE, IT
SHOULD BE HELD BY THE BOTTOM END CAP ONLY. (See Drawing)
5. Replace filter bowl and screw collar onto filter assembly
head.
5.2 Convertor Cartridge P/N 3154050
1. Disconnect spring which holds convertor case to bracket.
2. Using hands or strap wrench, unscrew case collar and
lower case assembly vertically downward to clear used
cartridge. If insufficient space is available to clear car-
tridge, allow case to rest on floor and proceed to next
step.
3. Unscrew used cartridge and remove cartridge and bowl
assembly.
4. Remove 5/16" nut and sleeve seal assembly from top of
used cartridge.
5. Open new cartridge bag. Replacement cartridges are
furnished in a dated vapor barrier bag. (NOTE: DO NOT
OPEN VAPOR BARRIER BAG UNTIL READY TO INSTALL NEW
CARTRIDGE.)
6. Insert new 1-7/8" I.D. x 2" O.D. o-ring in o-ring groove on
top cap of new cartridge.
7. Fasten sleeve seal assembly to top of new cartridge.
Check to see that o-ring is properly seated in top cap o-
ring groove.
8. Insert new 1-3/4" I.D. x 1-7/8" O.D. o-ring in sleeve seal.
9. Check convertor case to see that cartridge support spring
is positioned in the bottom of the case.
10. Screw cartridge into head and hand tighten. Install case
and hand tighten collar. (If bottom edge of mounting
bracket is less than 45 inches above floor, place cartridge
in case and position both below head before installing
cartridge.) Hand tightening of cartridge and case is
adequate to insure seals. DO NOT USE WRENCH TO
TIGHTEN CARTRIDGE.
11. Reconnect convertor case retaining spring.
12. Prior to placing air purifier into service, observe purifier
warning labels. Do not open purifier outlet isolation valve
if upper indicator band is yellow. See Section 3.0.
NOTE:
DO NOT USE A WRENCH TO TIGHTEN THIS EQUIPMENT.
OPEN ( TO RIGHT )
KNURLED FITTING
Head
O-ring
1-3/4” X 1-7/8”
Sleeve Seal
Assembly
Converter
Case
Hex Nut
5/16” - 18
O-ring
1-7/8” x 2”
Cartridge
No. 0719-1
Spring