Pentair Multiport Rotary Valve Owner's Manual

Multiport Rotary Valve Owner’s Manual

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

SAVE THESE INSTRUCTIONS

Table of Contents

SECTION I. Multiport Rotary Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SECTION II. T rouble Shooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SECTION III. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SECCION I. Válvula giratoria ”Multiport” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SECTION I. Soupape rotative à orifices multiples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

WARNING

Before installing this product, read and follow all warning notices and instructions accompanying this valve. Failure to follow
safety warnings and instructions can result in severe injury, death, or property damage. Call [phone] for additional free
copies of these instructions.

Important Notice

Attention Installer.
This manual contains important information about the installation, operation and safe use of this product.

This information should be given to the owner/operator of this equipment.

PacFab, Inc.

Corporate Headquarters: 1620 Hawkins Ave., Sanford, NC 27330 • [phone]
Western Operations: 10951 West Los Angeles Ave., Moorpark, CA 93021 • [phone]

Rev. D • Rev. D • Rév. D 4-7-00 1 P/N • Núm/Pte. • Réf. 99170000

SECTION I. Multiport Rotary Valve.

A. Before changing valve position, turn pump motor off.
B. Depress handle before turning to relocate in desired position;

see Figure 1.

1. Filter and Vacuum to the Pool - Normal filtering and

vacuuming: Flow from the pump to the inlet of the filter and
effluent from the filter outlet to the pool.

2. Drain and Vacuum to the Waste, Port - All water from the pump

by-passes the filter and goes directly to the waste port. Use when
draining the pool or vacuuming a pool with excessive sediment.

3. Close - shuts off all passages from the pump port to all other

ports. Use when removing the strainer lid with the pump off to
prevent water in the filter from flowing out through the open
pump strainer.

4. Backwash - Use when backwashing (cleaning) the filter. Pump

water is directed to the outlet of the filter and from the inlet of the
filter to the waste port.

5. Auxiliary Circulation - Water from the pump by-passes the filter,

returning directly to the pool. Maximum flow is thus achieved.

6. Filter to Waste - Water from the pump is directed through the

filter and out to the waste port.

Figure 1. Valve Handle Positions

7. “Blank” position - This notch does not have any written

identification on the label. It is identified in Figure 2, by the note
"To Remove Handle Screw". With the handle, item no. 2 in this
position, you can remove the handle holding screw, item no. 1,
for replacement.

SECTION II. Trouble Shooting.

A. Valve leaking to the waste port - caused by solid particles lodged

under the rotor which prevents it from seating properly.
REMEDY: Turn off the pump; then depress the handle and rotate it

about 1/4" so the handle pointer is resting on the top of the ridge
between two notches. Turn on the pump for 5 seconds to wash any
such particles from the gasket surface. This should permit the rotor to
seat properly on the gasket eliminating the leak. Turn off the pump.
Return handle to normal filtering position and turn on pump.

B. Water is leaking around rotor shaft - rotor seals need to be replaced,

refer to Figure 2.
REMEDY: Turn off the pump; then remove the six (6) cap screws,

item no. 5. You can now remove the entire top assembly from the
valve body, item no. 13. With the handle in the "Blank" position
remove the handle screw, item no. 1, and disassemble the top assem­bly. Replace both rotor seals, item no. 11. Reassembly top assembly
and replace on valve body.

Typical Plumbing for Vertical D.E. Filter

NOTE

Do not change operating position of this valve while pump is on.

CAUTION

Valve and plugs are A.B.S. Use an ABS to ABS glue only.

P/N • Núm/Pte. • Réf. 99170000 2 Rev. D • Rev. D • Rév. D 4-7-00

Typical Plumbing for Sand Filter

SECTION III. Technical Data

Item P/N Description

1 98201900 Screw, handle, 10-24 x 1-1/4 in.
2 51002700 Handle
3 51008800 Washer, Polyethylene
4 98209000 Screw, Philips Pan Hd., 1/4-20 x 1-1/2 in., 6 req.
5 51000511 Lid, multiport valve w/label 1-1/2 in.
6 51021600 Washer, thrust
7 51000700 Spring
8 51001200 O-ring, shaft, 2 req.

9 51001100 Rotor
10 51001000 Quad Ring, lid
11 51008400 Spider Gasket
12 51111311 Body, threaded w/spider gasket
12 51111211 Body, slip w/spider gasket
13 51001800 Gaskets, site glass set
14 51001600 Sight Glass
15 98205000 Screw, sight glass, #8-32 x 1-3/4 in.
16 98211400 Nut, 1/4-20, 6 req.

51000111 Top assembly with lid, handle, rotor, 1-1/2 in.
51001911 Plug, 1-1/2 in. thrd.
51002011 Plug, 1-1/2 in. ABS slip
51001300 Back-up ring split, teflon

Figure 2. Replacement Parts Breakdown

SA VE THESE INSTRUCTIONS.

Rev. D • Rev. D • Rév. D 4-7-00 3 P/N • Núm/Pte. • Réf. 99170000