Pentair Slide Backwash Valve User Manual

Installation and Operation Data

Installation and Op er a tion Man u al

Jandy® Slide Backwash Valve

FOR YOUR SAFETY - This product must be installed and serviced by authorized personnel qual i ﬁ ed in pool/spa installation and maintenance. Improper installation and/or operation will void the warranty.

H0569400B

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FOR YOUR SAFETY: This product must be installed and serviced by authorized personnel qual i ﬁ ed in pool/spa installation and maintenance. Improper installation and/or operation will void the warranty.

WARNING

Ensure that all electrical power to the system is turned off before approaching, inspecting or troubleshooting any leaking valves that may have caused other electrical devices in the surrounding area to get wet.

This document gives instructions for installing the Jandy Slide Valve. The instructions must be followed exactly. Read through the instructions completely before starting the procedure. Please save these instructions.

The Jandy Slide Valve is designed to be used on either sand or diatomaceous earth (DE) filters with a center to center dimension of eight (8") inches (center of the inlet port to the center of the outlet port). Combined with the Jandy Versa-Coupler, the Slide Valve can be used on filters with center to center dimensions of seven (7") to nine (9") inches.

For Jandy Filters, Slide Valve p/n SVLV8 (with unions) is ready to mount to DEL48 or DEL60 model filters (in which the top port is the filter outlet). If mounting a Jandy Slide Valve on Pentair or Sta-Rite Filters, use a combination of p/n SVLV2 (Slide Valve without unions) and p/n 8044 (Versa-Coupler Kit).

The Slide Valve is a two position valve. The valve handle must be fully extended or fully depressed. This valve can not be throttled. To operate the Slide Valve on a DE filter in normal filtration mode, fully depress the handle. To operate the Slide Valve on a sand filter in normal filtration mode, fully extend the valve handle (see Figure 1).

DE Filter Handle fully depressed (pushed down)

Sand Filter Handle fully extended (pulled up)

Section 1. SVLV8 Installation

1. Remove the Slide Valve from the packaging. Twist the handle on the Slide Valve several times to verify that the piston moves freely.

WARNING

2. Turn off all power to the system. For retroﬁ t installations only, follow steps "a" through "d". For new installations skip steps "a" through "d" and proceed to step 3.

a. Open the pressure relief valve on top of the

ﬁ lter. Wait for all air to evacuate the system.

b. If the ﬁ lter is below pool level, close the

suction and return line valves to isolate the ﬁ ltration system.

c. Remove the drain plug from the ﬁ lter. Let the

water drain from the ﬁ lter.

d. Remove the existing valve from the ﬁ lter.

3. Remove the o-rings (2 total) from the packaging.

4. Place the o-rings on the face of the union tail pieces, where the face of the Slide Valve union will connect to the ﬁ lter bulkheads (see Figure 2). Make sure each O-ring is properly seated into the groove of each union tail piece.

Figure 1. Handle Positions - Filter/Circulation

Mode(SVLV2 shown)

Coupling Nut

Union Tail Piece

O-ring

Figure 2. O-ring Placement

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CAUTION

The Slide Valve has molded labels on each port (see Figure 1). The ports on the SVLV8 are equipped with union connections that match the connections on the filter ports. Do not use pipe sealants on union nuts.

To Filter Body (cut away view)

To Pool

(PORT A)

Filter Outlet (PORT C)

From

Pump

(PORT B)

Filter Inlet (PORT D)

To Waste (PORT E)

Figure 3. SVLV8 Installed on Jandy DEL48 or

(DEL60)

5. Hold the Slide Valve upright and place onto the ﬁ lter bulkheads (see Figure 3).

Alignment

Mark

VersaCoupler p/n 8044

Figure 4. Jandy Versa-Coupler

NOTE: For new installations other than Jandy DEL48

or DEL60, use the SVLV2 and the Versa Coupler Kit, p/n 8044 (See Figure 4).

If using the Slide Valve with a Pentair ﬁ lter, use

Pentair Pool Products™ Union Set #27002, and then proceed to section B. If using a Sta-rite ﬁ lter, use Sta-Rite® Union Set #PKGM188, then proceed to section B.

Section 2. SVLV2 and Versa-Coupler

Installation

6. Tighten both union nuts to secure the valve on the ﬁ lter.

7. Place ﬁ lter and valve in proper location on the equipment set pad.

8. Plumb the discharge of the pump into the Slide Valve inlet labeled

PORT B

9. Plumb the Slide Valve outlet labeled

PORT A

to the

heater or pool return lines.

10. Plumb the Slide Valve outlet labeled

PORT E

to the waste line as needed. Allow the connections to dry for 24 hours.

CAUTION

Do not let any adhesive get inside the Slide Valve body. Adhesive inside the valve body will prevent the piston from moving freely, or cause the valve to leak.

11. When the glue is dry, start the system and check for proper water ﬂ ow.

CAUTION

To avoid costly equipment damage, after verifying proper water flow and prior to putting system into normal operating conditions, flush the system using Backwash mode until the waste water is clean. Refer to Section 4 for Backwash mode operation instructions.

NOTE Certain ﬁ lters may require only one (1) versa-

coupler (p/n 8044).

1. Slide one versa-coupler into

PORT D

on the Slide Valve.

PORT C

and one into

2. Hold the Slide Valve up to the ﬁ lter and twist the versa-couplers until they slide into the ﬁ lter inlet and outlet ports.

NOTE Make sure to align each versa-coupler to the

ﬁ lter and the Slide Valve prior to gluing the assembly. When the parts are in alignment, mark each piece to ensure correct reassembly.

3. Remove the valve from the ﬁ lter. Clean the versacouplers and glue them onto the valve using the alignment marks as a reference.

4. Clean the versa-coupler and glue onto the ﬁ lter. Hold the coupler in place for a minimum of one (1) minute.

5. Plumb the discharge of the pump into the Slide Valve inlet labeled

PORT B

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