Pentair MT warranty 2I. Boiler By-Pass Piping, 2J. Automatic Chlorinators, 2K. Pressure Switch

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Pentair Water Commercial Pool and Spa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 7. Manual By-Pass Installation.

Therefore, the temperature difference between the inlet and out pipes will be so small as to be difficult to sense by touching the two pipes.

2I. Boiler By-Pass Piping

All Model MT pool boilers are equipped with an automatic flow control valve. Do not install a manual bypass valve unless the normal filtration rate exceeds 300 GPM. If the normal filtration rate exceeds that figure:

1.Install the manual bypass valve as illustrated in Figure 7.

2.Install a thermometer in the threaded opening in the rear header as shown in Figure 8.

3.Set the manual bypass valve as follows:

a.Clean or backwash the filter completely.

b.Close the manual bypass valve completely.

c.Close the boiler’s main gas valve.

d.Start the filtration system with all valves set for normal filtration.

e.After 3 minutes, record the thermometer reading (this is the pool water temperature).

f.Open main gas valve and turn the thermostat to its highest setting to start the boiler.

g.Gradually open the bypass valve until the temperature difference shown in column 6 of Table 4 is achieved. For example, if the temperature reading in Step “e” was 60 degrees, and the boiler is a Model 3500, the thermometer should read 75 degrees. Make sure this temperature difference remains constant for at least 5 minutes.

h.Remove the handle from the bypass valve to prevent anyone from changing the setting. The automatic flow control valve will maintain proper flow through the boiler regardless of the reduced water flow due to a dirty or clogged filter.

Figure 8. Thermometer Location.

 

 

 

Bypass

Min.

Max.

Temp.

 

 

 

Spring

Flow

Bypass

Rise

Indoor

Outdoor

Part

Color

Req'd

Valve

at Rear

Size

Size

No.

Code

(GPM)Cap.

(GPM)

Header

2000

------

S220

Black

110

300

15

2450

2200

S221

White

134

300

15

3050

2800

S221

White

167

300

15

3500

3200

S222

Brown

191

300

15

4050

3600

S222

Brown

221

300

15

4500

4000

S222

Brown

246

300

15

5000

4500

S222

Brown

273

300

15

 

 

 

 

 

 

 

 

Table 4. By-Pass Valve Adjustments.

 

2J. Automatic Chlorinators

A concentration of chlorine in the boiler can be very destructive. Therefore, the following rules regarding the installation and operation of automatic chlorinators must be followed.

1.The chlorinator should be installed so that it introduces the gas or solution downstream from the boiler.

2.The chlorinator should be wired so that it cannot operate unless the filter pumps running.

3.The chlorinator should be provided with an anti- syphoning device so that when the pump shuts off, chlorine will not syphon back into the boiler.

4.When the chlorinator is installed in the system where the chlorine flows through the boiler, corrosion can occur. Excessive concentrations of chlorine, caused by improper adjustment or failure of the chlorination equipment, can cause boiler damage which is not covered by the warranty.

2K. Pressure Switch

The pressure switch on the boiler is factory set at 4 psi. Do not tamper with the switch unless the boiler is installed more than 3 feet below the surface of the

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Contents MegaThermTM Table of Contents Installation 2A. Boiler PlacementGeneral Information 1A. Introduction2B. Installation of Indoor Boilers 2B-1. Combustion Air Supply2C. Installation of Outdoor Units 2B-2. Venting2D. Freeze Protection 2E. Gas Supply and Piping2H. General Water Piping 2F. Electrical Wiring2G. Piping of System to Boiler 2J. Automatic Chlorinators 2K. Pressure Switch2I. Boiler By-Pass Piping Operation 3A. Initial Start-Up3A-1. Initial Filter Cycle on a New Pool 3A-2. Starting Instructions3B. To Start Up System See a for Initial Start Up 3C. To Turn Off Boiler3D. Spring and Fall Operation 3E. Winter Operation3G. Spa Hot Tub Safety Rules 3H. Periodic Service3F. Time Clock Operation 3I. Pool Water ChemistryMaintenance Pilot LocationTroubleshooting and Analysis Service Problems Possible Cause What To DoParts List for Conversion 6B. Section II See FigureOutdoor Parts. Referenced on Parts Description and Order Numbers 16Pentair Water Commercial Pool and SpaParts Identification 20010900 Built-in Automatic Control Valve 472644 Rev a 05/22/06

MT specifications

Pentair MT is a versatile and innovative product designed for a wide range of water treatment applications, catering to both residential and commercial needs. Known for its superior performance and reliability, Pentair MT incorporates advanced technologies to provide efficient water management solutions.

One of the standout features of Pentair MT is its ability to deliver high flow rates while maintaining optimal water quality. This is achieved through a combination of cutting-edge filtration technologies and smart monitoring systems. The product is equipped with multi-stage filtration, allowing for the removal of impurities, sediments, and harmful microorganisms, ensuring that the water is clean and safe for consumption.

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