PENTAIR 23833A494 Myers LLC Controller Instruction Manual

: June 9, 2024
: Pentair

Table of Contents

PENTAIR 23833A494 Myers LLC Controller
- SAFETY INSTRUCTIONS, INSTALLATION, AND SERVICE MANUAL
OVERVIEW
The Concept
FOUR STEP INSTALLATIONN
REPLACING BELLOFRAM
Typical Installation
STANDARD LIMITED WARRANTY
Documents / Resources

PENTAIR 23833A494 Myers LLC Controller

SAFETY INSTRUCTIONS, INSTALLATION, AND SERVICE MANUAL

NOTE! To the installer: Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system.

OVERVIEW

CALIFORNIA PROPOSITION 65 WARNING:
This product and related accessories contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

The Concept

The LLC is compact and works within its own diameter, requiring no lateral movement.
The key to its unique operation is in the “Rolling
Diaphragm” assembly. The Rolling Dia phragm Assembly consists of a durable Nitrile® diaphragm, push-cup, and load spring.
While the housing of the LLC remains stationary, increases in the liquid level exert pressure on the “Rolling Diaphragm and push-cup, which, in turn, drives a piston through a series of adjustable switches located in the head of the unit. As the liquid level decreases the “Load Spring” gradually returns the “Rolling
Diaphragm” to the neutral position. In addition, the tension of the “Load Spring” determines the Overall diaphragm/piston travel to level ratio.
Release the latches, on the top cap of the unit, and remove the cap. You may notice some resistance in removing the cap due to the O-ring seal. Use of a twisting motion to remove the cap may be required).
With the cap removed, the switch track is readily accessible. It may be removed by gently lifting the assembly parallel to the piston away from the housing. Switch locations may be changed simply by snapping them in or out of the track assembly (see figure 2).
When moving the switch assemblies, be certain to keep the switch orientation as indicated by the arrow in figure 2; switch on the top of the snap bracket.
Using Table 1, refer to the “Setting” column that matches model No. of your LLC.
Read down the column until you reach the approximate setting, in inches, of the first switching level desired.
Follow across the chart to the “Notch Setting” column. This number gives you the notch location, from the bottom of the track assembly, to snap your first switch.
Repeat this procedure for the remaining level switch settings.
(Note: arrange a similar number of switches on each side of the track assembly to avoid unbalanced piston movement.)
Make note of wire colors utilized for each switching level for use in connecting switches to your system.
Note: The inches called out in Table 1 refer to inches of liquid level above top of union nut.

FOUR STEP INSTALLATIONN

The LLC is quick and easy to install in just four steps.

Set the Adjustable Leve Switches
- The standard LLC comes complete with 4 adjustable switch assemblies. (Note: up to 14 switch assemblies can be mounted to the switch track to facilitate multiple functions).
- First, determine which model LLC you have. This information is located on the serial tag inside the cap of the LLC assembly. (Note: LLC18 18″ switching range/LLC42 = 42″ switching range).

Table 1

Mounting the LLC

Special Note: If the rolling diaphragm the assembly has been pushed up by some another method than water pressure (someone manually pushing on it) it will be necessary to reset the push cup in the bellofram.
This can be done by inserting the LLOC into the water to a depth equal to the full-measurement range.

Follow these instructions if you purchased a stainless steel mounting bracket for your LLC. To determine the recommended location for mounting the bracket, hold the LLC with the top of the Union Nut at the level which you wish to start measurement. Once this position has been determined mount the bracket approximately 1/3 of the distance from the top of the LLC. Refer to the “Typical Installation” sketch. Next install the LLC assembly in the bracket and tighten the bolts.
(CAUTION: Bolts should be snug only – overtightening the bolts could damage the unit). If other means of mounting are utilized, do not cut any holes in the housing.

Connecting the LLC to Your System

Connecting your LLC to an existing system or a brand new system couldn’t be easier!

The LLC will come with the switches connected in the normally open configuration. If your system requires normally closed contact(s) only one wire will need to be moved. (Refer to figures 3 and 4). Once the switches are wired, simply connect the loose color-coded ends into your control system.

Ensuring Proper Venting

Your LLC comes with a vent tube already attached. The LLC must be properly vented in order to operate correctly! Simply run the free end of the vent tube to a clean, dry unobstructed air source. Once this is done you have successfully in-stalled your LLC!

REPLACING BELLOFRAM

DIAPHRAGM

The bellofram is a durable Nitrile® diaphragm.
It should last the lifetime of your LLC. However, if it should become cut or punctured by a sharp object it will need to be replaced for the LLC to continue to work properly.
To replace the bellofram first unscrew the union nut.
Next, pull off the bottom seal plate and the old bellofram. Place the new bellofram in the bottom late.
Lastly, place the bottom seal plate and seal bellofram back over the push-cuP, and then screw the union nut back on to the top seal plate.

Typical Installation

STANDARD LIMITED WARRANTY

Pentair Myers® warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Myers or 18 months from the manufacturing date, whichever occurs first – provided that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals for use in pumping raw sewage, municipal wastewater or similar, abrasive-free, noncorrosive liquids. During the warranty period and subject to the conditions set forth,
Pentair Myers, at its discretion, will repair or replace to the original user, the parts that prove defective in materials and workmanship. Pentair Myers reserves the right to change or improve its products or any portions thereof without being obligated to provide such a change or improvement for prior sold and/or shipped units.
Start-up reports and electrical schematics may be required to support warranty claims. Submit at the time of startup through the Pentair Myers website:
http://forms.pentairliterature.com/startupform/startupform.asp?type=m.
Warranty is effective only if Pentair Myers authorized control panels are used. All seal fail and heat sensing devices must be hooked up, functional and monitored or this warranty will be void. Pentair Myers will cover only the lower seal and labor thereof for all dual seal pumps. Under no circumstance will Pentair Myers be responsible for the cost of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility.
This limited warranty will not apply: (a) to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed instructions provided; (b) to failures resulting from abuse, accident or negligence; (c) to normal maintenance services and parts used in connection with such service; (d) to units that are not installed in accordance with applicable local codes, ordinances, and good trade practices; (e) if the unit is moved from its original installation location; (f) if unit is used for purposes other than for what it is designed and manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider; (h) to any unit that has been repaired using nonfactory specified/OEM parts.
Warranty Exclusions: Pentair MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. Pentair MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
Liability Limitation: IN NO EVENT SHALL Pentair MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY Pentair MYERS PRODUCT OR PARTS THEREOF. PERSONAL INJURY AND/OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION. Pentair MYERS DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY UNDER THIS WARRANTY, FOR IMPROPER INSTALLATION. Pentair MYERS RECOMMEND INSTALLATION BY PROFESSIONALS.
Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you. No warranties or representations at any time made by any representatives of Pentair Myers shall vary or expand the provision hereof.
1101 MYERS PARKWAY 490 Pinebush Road, Unit #4
ASHLAND, OHIO, USA 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
419-289-1144 800-363-PUMP
WWW.FEMYERS.COM
Warranty Rev. 12/13

Documents / Resources

| PENTAIR 23833A494 Myers LLC Controller [pdf] Instruction Manual
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