Pentair PLDE48, PLDE36 Installation, Initial START-UP, Filter Assembly Filter mount must, Valves

INSTALLATION

Installation of filter should only be done by qualified, li- censed personnel.

Filter Assembly

Filter mount must:

•Be solid, level, rigid, vibration free, and provide for ad- equate drainage.

•Be as close to pool as possible to reduce pressure loss from pipe friction.

•Provide weather and freezing protection.

•Provide adequate ventilation to prevent motor from overheating.

•Provide space and lighting for easy access for servicing pump and piping (See Figure 1, Page 4, for space requirements).

Piping (See Figure 1B for correct connections):

NOTICE: Make sure that the filter and all piping can be drained for winterizing. See “Winterizing”, Page 9.

•Piping must conform to local/state plumbing and sani- tary codes.

•Use teflon tape, Plasto-Joint Stik®1, or Silastic RTV #732® on all male connections of plastic pipe and fit- tings. DO NOT use pipe compounds on plastic pipe; it will cause the pipe to crack. Do not use sealant on unions – assemble them dry and hand tight.

•Support pipe independently to prevent strains on filter.

•Fittings restrict flow; for best efficiency use fewest pos- sible fittings.

•For ease of maintenance, Sta-Rite union couplings are provided to connect the piping to the filter inlet and outlet ports.

•Keep piping tight and free of leaks: pump suction line leaks may cause trapped air in filter tank or loss of prime at pump; pump discharge line leaks may show up as dampness or jets of water.

•NOTICE: Overtightening can crack filter ports.

Valves:

•A check valve installed ahead of filter inlet will prevent contaminants from draining back into pool.

•A check valve installed between filter and heater will prevent hot water from backing up into filter and de- forming internal components.

•For installation allowing backwashing, install Sta-Rite Two Position Slide Valve or Multiport Selector Valve with filter. See Table 3. If you intend to clean your filter according to “Module Cleaning Procedure”, Page 7, no slide or multi-port valve is required. See Figure 1B, Page 4, for correct water flow when connecting pipe.

•Filter ports and valve ports are furnished with union connections. DO NOT use pipe sealants on union col- lar (nut).

1Lake Chemical Co., Chicago, IL

•Use care before assembly not to damage union sealing surfaces or O-Ring.

•To allow recirculation during precoat (if precoat pot is used), install a recirculation line with shut-off between pad return line and pump suction.

Electrical:

•BE SURE filter grounding and bonding meets local and National Electrical Code standards. All wiring, ground- ing and bonding of associated equipment must meet local and National Electrical Code Standards.

TABLE 3 - Sta-Rite valves for use with Model PLDE36 and PLDE48 filters

Port	Multi-port Valve	Plastic Slide Valve
Size	Part Number	Part Number
2"	18201-0300	14935-0300

NOTICE: Use of valves other than those listed above could cause reversed water flow through filters and damage to internal filter components.

INITIAL START-UP

Be sure pump is OFF

before starting procedure.

Do not operate these filters at more than 50 PSI

(345 kPa) under any circumstances!

To prevent serious damage to the element fabric, NEVER run your DE filter without a

diatomaceous earth precoat!

1.Securely lock Posi-Lok™ ring in place by rotating ring CLOCKWISE until it “clicks” past the safety latch (see Figure 3). Stop turning as soon as the ring clicks past the latch. The ring may feel slightly loose, but it will tighten up when pump is on and filter is under pressure.

2.Fill trap on pump with water.

Tab

Latch

2149 1195

Figure 3 – Rotate Posi-Lok™ Ring until tab locks behind the safety latch.

3.Open air release valve on top of filter.

4.Open isolation valves.

5.Start pump to purge air from system.

6.When steady stream of water comes from air release

5