Jandy CL Series User Manual

Jandy CL Series

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H0238700D

Installation and

Op er a tion Man u al

Jandy

®

Car tridge

Pool Fil ters

CL Series Fil ters

WARNING

FOR YOUR SAFETY - This product must be installed and serviced by a pro fes sion al pool/

spa service technician. The procedures in this manual must be followed ex act ly. Im prop er

in stal la tion and/or op er a tion can create dangerous high pres sure which can cause the ﬁ lter

lid to be blown off, possibly causing death, serious injury or prop er ty damage. Improper

in stal la tion and/or operation will void the war ran ty.

Before installing this product, read and follow all warning notices and instructions that

accompany this ﬁ lter. Failure to follow warning notices and instructions may result in

property damage, serious injury, or death.

Installation and Operation Data

Questions and Answers:

M
Monique PenaJul 26, 2025
What to do if there is low water flow in my Jandy CL?
- J
  Jesse TaylorJul 27, 2025
  Low water flow in your Jandy Swimming Pool Filter can be caused by several factors. Start by checking and cleaning the filter system strainer baskets. Inspect all connections between the pool intake and pump for air leaks. Look for any restrictions or blockages in the suction or return lines, ensuring all valves are fully open. Clean or replace the filter cartridges as per the instructions. Make sure the pool water level is above the pump inlet line. Fill the pump with water at the basket and replace the lid to ensure it's primed. If the pump impeller vanes are blocked or the pump is operating under speed (low voltage), a technician or electrician is required. Finally, replace any strainer baskets that are not being used or are broken.
J
Jessica ShermanAug 3, 2025
Why is the water not clear in my Jandy CL?
- D
  dtaylorAug 4, 2025
  Unclear water in your Jandy Swimming Pool Filter can stem from several issues. It could be due to an insufficient disinfectant level, which requires checking and adjustment. Incorrect pool chemistry also plays a role, necessitating water testing and adjustment. Heavy use or dirt loads might demand adjusting filter time or water chemistry. Insufficient running times require increasing pump run time. A dirty filter needs cleaning as per instructions, and a hole in the filter element means the cartridge should be replaced.
D
dwhiteAug 10, 2025
What causes short filter cycles in a Jandy CL?
- T
  Tina TannerAug 10, 2025
  Short filter cycles in your Jandy Swimming Pool Filter can occur due to several reasons. Algae clogging the filter is a common cause, so check the disinfectant content. Incorrect water chemistry, particularly pH, total alkalinity, and TDS, can also lead to this issue. It's also possible that the pump output exceeds the filter's design flow rate, requiring a check of pump performance. Ineffective cleaning could be the reason, so clean or replace the filter cartridge according to the instructions.
E
Elizabeth GilmoreAug 18, 2025
What to do if there is high pressure on start-up with my Jandy Swimming Pool Filter?
- D
  Dr. Paula HendersonAug 18, 2025
  High start-up pressure in your Jandy Swimming Pool Filter could be due to a few reasons. A small eyeball fitting in the pool or spa might be the culprit, so consider replacing it with a larger diameter fitting. Check and fully open all valves on the return line, as a partially closed valve can cause this issue. Also, verify that the pump and filter are appropriately sized for your pool. Lastly, clean the filter cartridges as per the instructions, as dirty cartridges can lead to high pressure.

Jandy CL Series Specifications

General

Brand	Jandy
Model	CL Series
Category	Swimming Pool Filter
Language	English

Summary

Section 1. Safety Information

1.1 Important Safety Warning

Crucial warnings about high pressure operation and potential hazards.

1.2 General Safety Instructions

Guidelines for installers and users on safe product handling and system operation.

Section 2. General Information

2.1 Introduction

Overview of the Jandy CL Series Cartridge Filters and manual scope.

2.2 Description

Explanation of how cartridge filters work and their components.

2.3 General Requirements

Recommendations for optimal filter placement and system setup.

2.4 Specifications and Dimensions

Technical details including filter area, flow rate, pressure, and physical dimensions.

Section 3. Installation Instructions

3.1 Filter Location

Guidance on selecting an appropriate, well-drained site for filter installation.

3.2 Filter Preparation

Steps for inspecting components and preparing the filter tank for assembly.

3.3 Filter Installation

Instructions for physically connecting and plumbing the filter to the pool system.

3.4 Clamp Installation, CL Series

Detailed procedure for correctly installing and tightening the filter clamp ring.

Section 4. Start-Up and Operation

Section 5. Filter Disassembly and Assembly

Section 6. Maintenance

6.1 General Maintenance

Routine cleaning and inspection procedures for the filter unit.

6.2 Pressure Gauge

Importance of maintaining the pressure gauge and when to seek service.

6.3 Cleaning the Filter Cartridge

Step-by-step guide on how to properly wash and inspect filter cartridges.

Section 8. Troubleshooting

Section 9. Parts List and Exploded View

9.1 Jandy® CL Cartridge Filter Parts List

A comprehensive list of all filter parts with corresponding part numbers.

9.2 Jandy® CL Filters Exploded View

A visual diagram showing the assembly of filter components.

Section 10. Head Loss Curves

10.1 Jandy® CL Cartridge Filter Design Head Loss Curves

Graphical representation of pressure drop versus flow rate for different filter models.

LIMITED WARRANTY

Warranty Claims

Information on how to submit a warranty claim and required documentation.

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