Pentair CRISTAL-FLO II User manual

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

SAVE THESE INSTRUCTIONS

INSTALLATION AND

USER’S GUIDE

PUMP AND SAND FILTER

SYSTEM

Technical Support

Sanford, North Carolina (8 A.M. to 4:30 P.M. ET)

Moorpark, California (8 A.M. to 4:30 P.M. PT)

Phone: (800) 831-7133

Fax (800) 284-4151

Web sites: visit www.pentair.com

Contents

Warnings and Important Safety Precautions .................................................. i

Section 1: Pump and Sand Filter System Overview .................................... 1

Valve Position and Water Flow Directions .......................................................... 2

Section 2: Installation .......................................................................................... 3

Section 3: Operation and Maintenance ........................................................... 10

Initial Start-Up ........................................................................................................... 10

Maintenance ............................................................................................................. 11

Cleaning .................................................................................................................... 12

Filter Backwash Procedure .................................................................................... 13

Chemical Cleaning ..................................................................................................14

Replacement ofValveTop and Diverter Assembly ............................................15

Winterizing the System ........................................................................................... 16

Section 4: Troubleshooting .................................................................................17

Section 5: Technical Data and Replacement Parts ......................................17

P/N 152007 Rev.D 10/21/21

Pump and Sand Filter System Installation and User’s Guide

Most states and local codes regulate the construction, installation, and

operation of public pools and spas, and the construction of residential pools

and spas. It is important to comply with these codes, many of which directly regulate the

installation and use of this product. Consult your local building and health codes for more

information.

SERIOUS BODILY INJURY OR DEATH CAN RESULT IFTHIS PUMP

AND SAND FILTER IS NOT INSTALLED AND USED CORRECTLY.

INSTALLERS, POOL OPERATORS AND POOL OWNERS MUST

READ THESE WARNINGS AND ALL INSTRUCTIONS BEFORE

USINGTHIS PUMP AND SAND FILTER.

Before installing this product, read and follow all warning notices

and instructions in this Guide. Failure to follow warnings and instructions

can result in severe injury, death, or property damage. Call (800) 831-7133 for additional free

copies of these instructions. Please refer to www.pentair.com for more information related to

these products.

Water temperature in excess of 100° F (37.7° C) may be hazardous to your

health. Prolonged immersion in hot water may induce hyperthermia.

Hyperthermia occurs when the internal temperature of the body reaches a

level several degrees above normal body temperature of 98.6° F (37° C.).

Effects of hyperthermia include: (1) Unawareness of impending danger. (2)

Failure to perceive heat. (3) Failure to recognize the need to leave the spa. (4)

Physical inability to exit the spa. (5) Fetal damage in pregnant women. (6)

Unconsciousness resulting in danger of drowning. The use of alcohol, drugs, or

medication can greatly increase the risk of fatal hyperthermia in hot tubs and

spas.

Maximum working water temperature for this filter is 95° F (35°C).

When setting up pool water turnovers or flow rates the operator must

consider local codes governing turnover as well as disinfectant feed ratios.

DO NOT increase pump size; this may increase the flow rate through the

system and exceed the maximum flow rate stated on the drain cover.

If this pump and sand filter is intended for use in other than single-family

dwellings, a clearly labeled emergency switch shall be provided as part of the

installation. The switch shall be readily accessible to the occupants and shall

be installed at least 5 feet (1.52 m) away, adjacent to, and within sight of, this

pump and sand filter system.

IMPORTANT NOTICE - Attention Installer: This Installation and User’s Guide

(“Guide”) contains important information about the installation, operation and safe

use of this pump and sand filter. This Guide should be given to the owner and/or

operator of this equipment.

This pump and sand filter system is intended for use in swimming

pool applications.

WARNINGS AND IMPORTANT SAFETY PRECAUTIONS

To reduce the risk of injury, do not permit children to use or operate this

pump and sand filter.

Pump and Sand Filter System Installation and User’s Guide

A pool or spa pump must be installed by a qualified pool and spa

service professional in accordance with the National Electrical Code and

all applicable local codes and ordinances. Improper installation may create an electrical hazard

which could result in death or serious injury to pool users, installers, or others due to

electrical shock, and may also cause damage to property.

High Pressure from the sand filter can cause severe injury or

major property damage due to tank separation.

Release all pressure and read instructions before working on

the sand filter. If the filter clamp is adjusted under pressure,

the tank can separate, causing serious injury or major

property damage.

Pumps improperly sized or installed or used in applications other

than for which the pump was intended can result in serious personal

injury or death. These risks may include but not be limited to electric shock, fire, flooding,

suction entrapment or serious injury or property damage caused by a structural failure of

the pump or other system component.

Never exceed the maximum stated pump flow rating.

Only use a pumping system rated for the corresponding flow. FAILURE TO DO

SO CAN RESULT IN HAIR OR BODY ENTRAPMENT WHICH CAN CAUSE

SERIOUS PERSONAL INJURY OR DEATH. If in doubt about the rating of your

system, consult a qualified pool service professional.

Pumps are not a substitute for properly installed and secured pool

drain covers. An ANSI/ASME A112.19.8 approved anti-

entrapment drain cover must be used for each drain. Pools and spas should utilize a

minimum of two drains per pump. Regularly inspect all covers for cracks, damage

and advanced weathering. If a cover becomes loose, cracked, damaged, broken

or is missing, close the pool or spa immediately, shut off the pump, post a notice

and keep the pool or spa closed until an appropriate VGB 2008 certified cover is

properly installed. Covers deteriorate over time due to exposure to sunlight and

pool chemicals. This cover must be replaced within seven (7) years from

installation (or earlier if the cover becomes damaged in any way).

BEFORE WORKING ON FILTER!

(1) Stop pump.

(2) Open air release valve.

(3) Release all pressure from system.

PUMPS REQUIRE HIGH VOLTAGE WHICH CAN SHOCK, BURN,

OR CAUSE DEATH.

BEFORE WORKING ON PUMP!

Always disconnect power to the pool pump at the circuit

breaker before servicing the pump. Failure to do so could

result in death or serious injury to service person, pool

users or others due to electric shock.

RISK OF ELECTRICAL SHOCK OR ELECTROCUTION:

WARNINGS AND IMPORTANT SAFETY PRECAUTIONS

Pump and Sand Filter System Installation and User’s Guide

Hair Entanglement – When the hair tangles or knots in the drain cover,

trapping the swimmer underwater. This hazard is present when the flow

rating of the cover is too small for the pump or pumps.

Limb Entrapment – When a limb is sucked or inserted into an opening

resulting in a mechanical bind or swelling. This hazard is present when a

drain cover is missing, broken, loose, cracked or not properly secured.

Body Entrapment – When a portion of the body is held against the drain cover

trapping the swimmer underwater. This hazard is present when the drain cover

is missing, broken or the cover flow rating is not high enough for the pump or

pumps.

Evisceration/Disembowelment – When a person sits on an open pool

(particularly a child wading pool) or spa outlet and suction is applied directly to

the intestines, causing severe intestinal damage. This hazard is present when

the drain cover is missing, loose, cracked, or not properly secured.

Mechanical Entrapment – When jewelry, swimsuit, hair decorations, finger, toe

or knuckle is caught in an opening of an outlet or drain cover. This hazard is

present when the drain cover is missing, broken, loose, cracked, or not prop-

erly secured.

SUCTION ENTRAPMENT HAZARD

Pool and spa pumps move large volumes of water, which can pose extreme

danger if a person’s hair comes in close proximity to a drain that is not the proper

size for the pump or pumps.

iii

WARNINGS AND IMPORTANT SAFETY PRECAUTIONS

Pump and Sand Filter System Installation and User’s Guide

For information about the Virginia Graeme Baker Pool and Spa Safety

Act, contact the Consumer Product Safety Commission at (301) 504-

7908 or visit www.cpsc.gov.

NOTE: Always turn off all power to the pool pump before installing the

cover or working on any suction outlet.

The Virginia Graeme Baker Pool and Spa Safety Act imposes certain

new requirements on owners and operators of swimming pools and spas.

Pools or spas constructed on or after December 20, 2008, shall utilize:

(A) No submerged suction outlets, a gravity drainage system with

ASME/ANSI cover(s), one or more unblockable outlets; or

(B) A multiple main drain system without isolation capability with

suction outlet covers that meet ASME/ANSI A112.19.8 Suction

Fittings for Use in Swimming Pools, Wading Pools, Spas, and

Hot Tubs and either:

(i) A safety vacuum release system (SVRS) meeting ASME/ANSI

A112.19.17 Manufactured Safety Vacuum Release Systems (SVRS)

for Residential and Commercial Swimming Pool, Spa, Hot Tub, and

Wading Pool Suction Systems and/or ASTM F2387 Standard

Specification for Manufactured Safety Vacuum Release Systems

(SVRS) for Swimming Pools, Spas and Hot Tubs or

(ii) A properly designed and tested suction-limiting vent system or

(iii) An automatic pump shut-off system.

Pools and spas constructed prior to December 20, 2008, with a single

submerged suction outlet shall use a suction outlet cover that meets

ASME/ANSI A112.19.8 and either:

(A) A multiple main drain system without isolation capability, or

(B) A safety vacuum release system (SVRS) meeting ASME/ANSI

A112.19.17 and/or ASTM F2387, or

(D) An automatic pump shut-off system, or

(E) Disabled submerged outlets, or

(F) Suction outlets shall be reconfigured into return inlets.

Two Speed Pump Controls Notice (Title 20 Compliance)

Please read the following important Safety Instructions. When using two-speed

pumps manufactured on or after January 1, 2008, the pump's default

circulation speed MUST be set to the LOWEST SPEED, with a high speed

override capability being for a temporary period not to exceed one normal cycle,

or two hours, whichever is less.

WARNINGS AND IMPORTANT SAFETY PRECAUTIONS

Pump and Sand Filter System Installation and User’s Guide

Section 1

Pump and Sand Filter System Overview

This system operates under pressure and if assembled improperly or operated

with air in the water circulation system it can separate and result in an

accident causing serious bodily injury.Awarning label has been affixed to the

filter and should not be removed. Keep safety labels in good condition and

replace if missing or illegible. (For free labels call, (919)-774-4151). Pumps

and filters should never be tested or subjected to air or gas under pressure.

All gases are compressible and under pressure create a danger. Serious

bodily injury or property damage could occur if the pump or filter is subjected

to air or gas pressure.

The system consists primarily of a centrifugal pump, a high rate sand filter

with control valve, a connecting hose and a mounting base. Your centrifugal

pump is driven by an electric motor. The motor is directly attached to the

pump impeller. As the electric motor turns it causes the impeller to turn and

this causes the water to flow. The water flows into the hair and lint pot inlet

and through the basket assembly to prestrain large particles. The flow then

enters the center of the pump housing. The flow goes through the impeller

into the stationary diffuser, out the pump discharge port, through the

connecting hose and into the filter control valve. Dirt is collected in the filter

as the water flows through the control valve at the top of the filter and is

directed downward onto the top surface of the filter sand bed. The dirt is

collected in the sand bed and the clean water flows through the lower piping

at the bottom of the filter up through the center pipe into the control valve at

the top of the filter. Clean water then returns through the piping system to the

pool. The pressure will rise and the flow to the pool will be lowered as the dirt

is collected in the filter. Eventually, the filter will become so plugged with dirt

that it will be necessary to perform the backwash procedure. It is important to

know when to backwash the filter. For backwashing information, see page 12

and 13. The six (6) operating position and one (1) “Winterize” position valve is

designed to provide all the necessary positions required to operate, maintain,

troubleshoot and service your sand filter.

Air entering the filter and a valve clamp not closed

properly can cause the valve to separate and could

cause serious bodily injury and/or property damage.

To prevent equipment damage and possible injury,

always turn pump off before changing valve position.

Pump and Sand Filter System Installation and User’s Guide

Valve Position and Water Flow Directions

FILTER:From pump, through valve, downward through filter sand bed, up

through center pipe to valve return port, and back to the pool for normal filter

action and vacuuming pool through filter.

BACKWASH:From pump, through valve, down through center pipe, up

through filter sand to valve, and out wasteport. This position is used for

cleaning filter by reversing flow.

RINSE: From pump, through valve, downward through filter sand, up through

center pipe to valve and out waste port. This position is used for start up

cleaning and resettling filter bed after backwashing.

WASTE: From pump, through valve, bypasses filter and goes to wasteport.

This position is for vacuuming directly to waste, lowering pool level, or

draining pool.

CLOSED:NO FLOW IN THIS POSITION - DO NOT USE THIS

SETTING WITH PUMP OPERATING.

RECIRCULATING:From pump, through valve, bypass filter and goes to

return port and back to pool. This position is for circulating water without

going through filter.

This filter operates under high pressure. When any part of the circulating

system (e.g., clamp, pump, filter, valves, etc.) is serviced, air can enter the

system and become pressurized. Pressurized air can cause the lid or control

valve to separate which may result in serious injury, death, or property

damage. To avoid this potential hazard, follow these instructions.

1. Before repositioning valves and before beginning the assembly,

disassembly, or adjustment of the clamp or any other service of the

circulating system:

(a) Turn the pump off and shut off any automatic controls to ensure the system

is not inadvertently started during the servicing;

(b) Open manual air relief valve;

2. Whenever installing the filter clamp, follow the filter valve and clamp

installation instructions exactly.

3. Once service on the circulating system is complete, follow system restart

instructions exactly.

4. Maintain circulation system properly. Replace worn or damaged parts

immediately (e.g., clamp, pressure gauge, relief valve, o-rings, etc.).

5. Be sure that the filter is properly mounted and positioned according to

instructions provided.

Pump and Sand Filter System Installation and User’s Guide

Failure to operate your filter system or

inadequate filtration can cause poor

water clarity obstructing visibility in your pool and can allow

diving into or on top of obscured objects, which can cause

serious personal injury or drowning.

WINTERIZING: Valve position for a winterized sand filter, see page 16.

Please note that a sand filter removes suspended matter and does not sanitize

the pool. The pool water must be sanitized and the water must be balanced

for sparkling clear water. Pool chemistry is a specialized area and you

should consult your local pool service specialist for specific details. In

general proper pool sanitation requires a free chlorine level of 1 to 2 PPM

and a pH range of 7.2 to 7.6.

Your filtration system should be designed to meet your local health codes. As

a minimum, you must be sure that your system will turnover the total volume

of water in your pool at least twice in a twenty-four (24) hour period.

Section 2

Installation

1. Read and understand all instructions before attempting to install,

operate, or maintain your pump and sand filter system.

2. Provide space and lighting for routine maintenance access. Locate the

system close to the pool. See Figure 1 for typical installation.

Note: Install electrical controls (e.g., on/off switches, timers, control

systems, etc.) at least five (5) feet from the filter. This will allow you

enough room to stand clear of the filter during system start up.

Systems that are unassembled should be assembled at this point. See

special instructions A through G.

A. Make sure all electrical breakers and switches to the pump are

switched off, and disconnect the communication cable from the pump

before installing the base.

B. Remove all individual components from carton and inspect for any

visible damage. If carton or parts are damaged contact seller or

freight company.

C. Place the system support base on the ground close to the final location

of the unit. See Figure 1 on the next page.

Pump and Sand Filter System Installation and User’s Guide

D. Examine the bottom of the lter and conrm the orientation of the

small mounting protrusions on the tank.

E. Align the protrusions on the tank with the corresponding recesses in

the lter support portion of the base and place the lter on the base.

This filter operates under pressure. With the valve

clamped properly and operated without air in the

system, this filter will operate in a safe manner. Air

entering the filter and the valve not clamped

correctly can cause the valve to separate, which

could cause serious personal injury and/or property

damage.

Always turn pump off before changing valve

positions. Changing valve positions while the pump

is running can damage the control valve, which

may cause serious injury or property damage.

Figure 1.

FROM

POOL

WASTE

TO POOL

WINTERIZING

DRAIN (HIDDEN)

MANUAL AIR

BLEEDER

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