Hydrotech PURA ADDON SERIES - Manual (Page 24)

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4. Slowly open the feed water supply valve.
5. Open all downstream faucets. Keep faucets open until a chlorine
smell is detected at each faucet, then close faucets.
NOTE: Water lines downstream from UV housing must be
disinfected to destroy any bacteria that might remain in the
pipes.
6. Verify disinfection solution has reached every water outlet
downstream of UV system. Solution must remain in the system
for at least four hours.
7. Open outlet valve and let water flow for 5 minutes to flush
disinfection solution from the water lines.
ROUTINE MAINTENANCE
FILTER REPLACEMENT PROCEDURE
1. Perform Cleaning Procedure (Page 18, steps 1-11).
NOTE:
Do not remove protective plastic bag from filters. Open
bottom of bag only enough to expose bottom of filter.
NOTE: Refer to Exploded Schematic for your system to
ensure each filter is installed in the correct position.
NOTE: For UVB and UV1 Models only: Refer to the
Exploded Schematic to ensure proper position of
Teflon Sleeve removed in Cleaning Procedure.
2. Install the filters into the appropriate sump. Hold filter by its
protective plastic bag and insert the filter into the sump.
CAUTION: For UVBB Model only: Be sure sump with metal liner
is installed onto UV head.
CAUTION: TIGHTEN SUMPS BY HAND ONLY. Do not use tools
as they will over-tighten and may damage sump. Take
care not to cut or pinch “O” rings or gaskets. Use
sump wrench for removal only.
3. Slide bag from filter and discard. Replace each sump as each
filter is installed.
4. Plug system into electrical outlet. Turn on water supply and check
for leaks. Flush system for several minutes to remove carbon
fines.
ROUTINE MAINTENANCE
UV LAMP REPLACEMENT PROCEDURE
NOTE: Refer to individual System Assembly and Activation
Procedures to identify specific components matching
the descriptions shown in this procedure.
1. Disconnect system from electrical outlet.
2. Shut feed water supply valve and open downstream faucet to
relieve system pressure.
CAUTION:
Do not attempt to remove sumps until water flow
stops. This reduces pressure inside the system so
sumps may be safely removed.
CAUTION: Use care when sanitizing UV head. Do not get the UV
control module or connectors wet.
3. Remove sump from UV head and set aside.
CAUTION: Do not touch quartz sleeve or UV lamp with bare
hands. Fingerprints will reduce the effectiveness of the
light.
WARNING: Do Not Attempt to Remove Quartz Sleeve.
Damage to system and personal injury may occur if
the sleeve is removed incorrectly. Contact your dealer
if quartz sleeve is broken or needs replacement.
4. Clean quartz sleeve carefully using vinegar to remove hardness.
Do not use abrasive materials. Rinse sleeve thoroughly with clean
potable water. Replace any sleeve that is damaged or that will not
come completely clean.
5. Gain access to UV lamp:
a. For UVB, UV20, and UVBB Models only: Remove UV
Control Module (Item 10) from Mounting Bracket (Item 6,
6A, 6B) by removing four Screws (Item 11).
b. For UV1 Model only: Loosen Screw (Item 9) securing
slotted side of UV Lamp Retainer (Item 7). Remove other
screw securing UV lamp retainer to UV head. Rotate
bracket away from UV lamp. Remove and slide Finish Cap
(Item 12) on cable towards UV control.
6. Remove UV lamp from system being careful not to break UV lamp
or dislodge quartz sleeve:
a. For UVB and UV20 Models only: Remove UV control
module with UV lamp by gently lifting control module
straight up from mounting bracket. Grasp UV lamp firmly
and remove lamp from the four-pin socket.
b. For UVBB Model only: Remove UV control module with
UV lamp by lifting the control module straight up from
mounting bracket. The four-pin socket is attached to the
UV control module by a short cable that allows for correct
insertion depth. Grasp UV lamp and four-pin socket firmly
and separate lamp from connector.
c. For UV1 and Addon Models Only: Remove UV lamp by
gently lifting the cable connecting the four-pin socket to the
UV lamp. Grasp UV lamp and four-pin socket firmly and
separate lamp from connector. During replacement, be
sure UV lamp is inserted as far as possible into the quartz
sleeve.
NOTE: The inside of quartz sleeve must be completely dry
before installing the replacement UV lamp.
NOTE: Hold replacement UV lamp by the ceramic ends only.
Do not touch the glass. Clean glass with isopropyl
alcohol if necessary.
7. Install the replacement UV lamp by reversing steps 5 and 6 of this
procedure.
CLEANING, DISINFECTING, AND ROUTINE MAINTENANCE PROCEDURE Cont’d