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MASTERTEMP
INSTALLATION AND USER'S GUIDE (AUSTRALIA)
FOR YOUR SAFETY - READ BEFORE OPERATING
FOR YOUR SAFETY - This product must be installed and serviced by authorized personnel, qualified in pool/spa
heater installation. Improper installation and/or operation can create carbon monoxide gas and flue gases which can
cause serious injury, property damage, or death. For indoor installations, as an additional measure of safety, Pentair
Water Pool and Spa strongly recommends installation of suitable Carbon Monoxide Detectors in the vicinity of this
appliance and in any adjacent occupied spaces. Improper installation and/or operation will void the warranty.
240 VAC NATURAL GAS/LP GAS
Model MT125 HD
125K (33 kW) with cord
FOR YOUR SAFETY
damage, personal injury or loss of life.
damage, personal injury or death. Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
FOR
YOUR
SAFETY
125 POOL AND SPA HEATER
™
Natural
Propane
461092
461093
WHAT TO DO IF YOU SMELL GAS
www.pentairpool.com.au - www.pentairpool.com - www.staritepool.com
Rainbow Pool Products
®
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: info@rainbowpoolproducts.com.au
Web: www.rainbowpoolproducts.com.au
OWNER:
Retain For
Future
Reference
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Table of Contents
Related Manuals for Pentair MT125 HD
Summarization of Contents
Heater Identification Information
Heater Identification Number (HIN)
Explains the HIN system and its components for identifying the heater model.
Heater Data Rating Plate Location
Details the location of the heater's data rating plate, requiring access panel removal.
Important Safety Instructions
Special Instructions to Owner
Provides crucial advice for owners regarding manual retention and understanding.
Important Notices
Highlights warranty implications and contact information for questions.
Warranty Information
Details the limited factory warranty and the process for returning the warranty card.
Code Requirements
Consumer Information and Safety
Covers critical safety warnings, including carbon monoxide dangers and water temperature hazards.
Consumer Information and Safety (Continued)
General Specifications
Outlines key specifications and operational limitations of the heater.
Warnings and Safety Instructions
Carbon Monoxide Gas is Deadly
Emphasizes the severe danger of carbon monoxide from heater exhaust.
For Your Safety
Stresses the need for qualified installation and potential warranty voiding.
Warnings and Safety Information (Continued)
Risk of Fire or Explosion
Warns against incorrect fuel use and improper conversion.
Risk of Explosion (Propane)
Addresses risks associated with propane gas storage proximity.
Risk of Fire and Burn Hazard
Covers fire risks from objects near heater & burn hazard from hot surfaces.
Risk of Asphyxiation
Details the danger of improper exhaust venting leading to asphyxiation.
Operating the Control Panel
Heater Controls and Indicators
Explains the function of control buttons and indicator lights on the panel.
Section 1: Operation Instructions
Basic System Operation
Outlines the initial steps for operating the heater system.
Heater HSI Electronic Ignition Lighting/Operation
Details the lighting and operation sequence for the hot-surface ignition.
Start-Up and Operation
Covers the initial setup and operational procedures before use.
Section 1: Operation Instructions (Continued)
Operating Instructions
Provides step-by-step instructions for starting and running the heater.
To Turn Off Gas to Appliance
Details the procedure for safely shutting off gas supply to the heater.
Section 1: Operation Instructions (Continued)
Safety Controls
Explains the function of critical safety devices like AFS, Pressure Switch, and High Limits.
Air Flow Switch (AFS)
Describes the purpose and operation of the Air Flow Switch.
Water Pressure Switch
Details the water pressure switch function and adjustment for installation.
High Limits
Explains the high limit safety devices that shut off the heater.
Section 1: Operation Instructions (Continued)
Operation of Ignition Module
Describes the microprocessor-based ignition module and its role.
Temperature Setting
Explains how to set the desired pool and spa temperatures.
Adjust Maximum Temperature Set Point
Guides on adjusting the maximum temperature settings for pool and spa.
Section 2: Installation Instructions
Heater Description
Provides a diagram and overview of the heater's internal components and operation.
Sequence of Operation
Details the electronic sequence of events during heater operation.
Section 2: Installation Instructions (Continued)
Putting the Heater into Service
Outlines the steps for preparing and initiating the heater's operation.
Specifications (Dimensions)
Presents the physical dimensions of the heater for installation planning.
Section 2: Installation Instructions (Continued)
Plumbing Connections
Details how to connect the heater to the pool/spa plumbing system.
Water Connections
Explains the requirements for proper water flow and pressure for the heater.
Section 2: Installation Instructions (Continued)
Valves
Discusses the use and placement of valves in the circulation system.
Manual By-Pass (Water Flow Rate)
Describes the installation and adjustment of a manual by-pass valve.
Below Pool Installation
Addresses specific considerations for installing the heater below the pool water level.
Flow Switch Installation
Details when and how to install a flow switch instead of a pressure switch.
Section 2: Installation Instructions (Continued)
Gas Connections
Covers the essential requirements for connecting the gas supply.
Gas Line Installations
Outlines guidelines for installing the gas supply line to the heater.
Sediment Traps (Drip Leg)
Explains the importance and installation of sediment traps.
Section 2: Installation Instructions (Continued)
Testing Gas Leaks and Gas Pressure
Provides procedures for testing gas connections and measuring pressure.
Section 2: Installation Instructions (Continued)
Outdoor Heater Installation (Australia)
Provides specific installation guidance for outdoor locations.
Section 2: Installation Instructions (Continued)
Heater Clearances – Outdoor
Specifies minimum clearances required for outdoor heater installations.
Section 2: Installation Instructions (Continued)
Indoor Venting – General Requirements
Details general venting requirements for indoor installations.
Heater Clearances – General Requirements
Lists clearances needed for both indoor and outdoor shelter installations.
Combustion Air Supply
Explains the need for adequate combustion air, especially for indoor setups.
Section 2: Installation Instructions (Continued)
Corrosive Vapors and Possible Causes
Identifies common contaminants that can damage the heater.
Direct Air Intake Duct
Guides on installing a direct air intake duct for combustion air.
Section 2: Installation Instructions (Continued)
Vent Installation – Indoor/Outdoor Shelter
Covers vent installation for indoor or outdoor shelter scenarios.
Vertical Venting
Details the requirements and methods for vertical venting installations.
Section 2: Installation Instructions (Continued)
Vent Pipe Installation (Vertical Venting)
Provides instructions for installing vertical vent pipes and managing condensate.
Section 2: Installation Instructions (Continued)
Horizontal or Vertical Venting – Single-Wall Stainless Gas Vent
Explains venting using single-wall stainless steel gas vent.
Section 2: Installation Instructions (Continued)
Connecting Single-Wall Stainless Steel Vent
Details how to connect single-wall stainless steel vent to the heater.
Section 2: Installation Instructions (Continued)
Vent Termination – Horizontal
Specifies requirements for horizontal vent terminal locations.
Section 2: Installation Instructions (Continued)
Horizontal or Vertical Venting Flexible Duct (Flex-Vent)
Covers installation of flexible duct (Flex-Vent) for horizontal or vertical venting.
Section 2: Installation Instructions (Continued)
Control Panel Indexing
Explains how to rotate and position the control panel for easy access.
Final Installation Check
Outlines the essential tests and checks after installation is complete.
Section 2: Installation Instructions (Continued)
Electrical Connections
Provides detailed instructions for making electrical connections to the heater.
Section 2: Installation Instructions (Continued)
Connection of Fireman's Switch or Remote Contact
Details wiring for fireman's switch or remote control systems.
Section 2: Installation Instructions (Continued)
Heater Wiring Diagram (3-Wire System)
Presents the wiring diagram for the 3-wire system.
Section 2: Installation Instructions (Continued)
Heater Electrical Schematic Ladder Diagram
Shows the electrical schematic in a ladder diagram format.
Section 3: Troubleshooting Instructions
Initial Troubleshooting
Offers preliminary steps and checks before detailed troubleshooting.
Section 3: Troubleshooting Instructions (Continued)
Heater Will Not Fire - A
Troubleshooting guide for scenarios where the heater fails to ignite.
Section 3: Troubleshooting Instructions (Continued)
Heater Will Not Fire - B
Continues troubleshooting for 'Heater Will Not Fire' issues.
Section 3: Troubleshooting Instructions (Continued)
Heater Will Not Fire - C
Further troubleshooting steps for 'Heater Will Not Fire' issues.
Section 3: Troubleshooting Instructions (Continued)
Heater Will Not Fire - D
Final troubleshooting steps for 'Heater Will Not Fire' scenarios.
Section 3: Troubleshooting Instructions (Continued)
Diagnostic LED's: AGS, AFS, HLS, PS, THERMISTOR
Guides troubleshooting based on specific diagnostic LED indicators.
Section 3: Troubleshooting Instructions (Continued)
Diagnostic LED's: SFS
Provides troubleshooting steps for the Stack Flue Sensor (SFS) LED.
Section 3: Troubleshooting Instructions (Continued)
Burner Troubleshooting
Addresses common issues related to the heater's burner operation.
Heat Exchanger Troubleshooting
Guides on diagnosing and resolving problems with the heat exchanger.
Section 4: Maintenance Instructions
Care and Maintenance
Outlines general care and routine maintenance procedures for the heater.
De-Liming the Heater
Explains the process for removing mineral deposits (de-liming) from the heater.
Pressure Relief Valve
Details the installation and testing of the pressure relief valve.
Section 4: Maintenance Instructions (Continued)
Checking Water Flow
Describes how to check for adequate water flow through the heater.
Spring and Fall Operation
Provides advice for operating the heater during spring and fall.
Winter Operation
Outlines procedures and precautions for winter operation and storage.
Section 4: Maintenance Instructions (Continued)
Maintaining Pool Temperature
Offers tips for maintaining desired pool temperatures efficiently.
Energy Saving Tips
Provides strategies to reduce energy consumption while operating the heater.
Chemical Balance
Emphasizes the importance of proper water chemistry for heater longevity.
Section 4: Maintenance Instructions (Continued)
Chemical Balance (Continued)
Continues the discussion on water chemistry parameters and their effects.
Heater Replacement Parts
Repair Parts – Burner System
Lists replacement parts for the burner system.
Heater Replacement Parts (Continued)
Repair Parts – Electrical System
Lists replacement parts for the electrical system.
Heater Replacement Parts (Continued)
Repair Parts – Burner System (Detailed)
Provides a detailed breakdown of burner system replacement parts.
Heater Replacement Parts (Continued)
Repair Parts – Water System
Lists replacement parts for the water system.
Heater Replacement Parts (Continued)
Repair Parts - Electrical System (Detailed)
Provides a detailed breakdown of electrical system replacement parts.
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