Pentair MT125 Manuals

2 pdf manual(s) Pentair MT125 for free download (Document Types: Installation and user manual)

Available Documents for MT125:

Pentair MT125 Installation and user manual Main Page Preview

Installation and user manual [PDF] (54 pages)

  • Brand: Pentair
  • Model: MT125
  • Format: PDF
  • Key Aspects: Standard Operating Procedures, Warranty and Service Information, Documentation and Revision History
  • Updated: 11.05.2026
  • Source File: 2196818.pdf
  • Pages: 54
  • Description: User operation guide for the Pentair MT125.

Document Preview & Text Transcription

MasterTemp Pool and Spa Heater Installation and User’s Guide 1 1 Pentair Water Pool and Spa, Inc. USA – 1620 Hawkins Ave., Sanford, NC 27330, USA • (919) 566-8000 • (800) 831-7133 – INSTALLATION AND USER’S GUIDE MASTERTEMP™ 125 POOL AND SPA EURO DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or other appliances. FOR YOUR SAFETY Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or death. Installation and service must be performed by a qualified installer, service agency or the gas supplier. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. MT125, EURO MT125HD, EURO 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 Aquatic Systems 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. FOR YOUR SAFETY - READ BEFORE OPERATING If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. For additional free copies of this manual; call USA (800) 831-7133 • If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. • Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or death. Installation and service must be performed by a qualified installer, service agency or the gas supplier. • Do not place articles or against this appliance. • Do not use or store flammable materials near this appliance. • Do not spray aerosols in the vicinity of this appliance while it is in operation. OWNER: Retain For Future Reference Pentair Water Pool and Spa, Inc. EMEA – Head Office: Industriepark, Wolfstee, Toekomstlaan 30, 2200 Herentals - Belgium. 10951 W. Los Angeles Ave., Moorpark, CA 93021, USA • (805) 553-5000 • (800) 831-7133 www. pentaireurope.com - www.pentairwater.com.au - www.pentairpool.com - www.staritepool.com FOR YOUR SAFETY 0087 1312 NOx CLASS 5 COUNTRY OF DESTINATION: GB, BE, FR, DE Natural Gas Models (G20, G25) Propane Gas (G31) 461078 461079 460902 460903 (240 VAC) MasterTemp Pool and Spa Heater Installation and User’s Guide Technical Data | Technical Data i P/N 475106 Rev. D 2/2017 General Specifications GAS TYPE: GAS GROUP: GAS SUPPLY PRESSURE: TYPE OF APPLIANCE: COUNTRY OF DESTINATION: WARNING! READ THE TECHNICAL INSTRUCTIONS BEFORE INSTALLING THIS APPLIANCE. READ THE INSTALLATION AND USER’S GUIDE BEFORE LIGHTING THIS APPLIANCE. 0087 1312 6 0087 1312 THIS HEATER IS EQUIPPED TO BURN OUTPUT ALTITUDE MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTED 15 CM REAR, 15 CM TOP DO NOT INSTALL THIS HEATER UNDER AN OVERHANG LESS THAN 1 METER FROM THE TOP. THE AREA UNDER THE OVERHANG MUST BE OPEN ON THREE (3) SIDES. APPROVED FOR INDOOR AND OUTDOOR INSTALLATIONS ELECTRICAL COMPLIANCE: IN ACCORDANCE WITH LOCAL ELECTRICAL CODES. THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH THE EUROPEAN STANDARD INSTALLATION CODES, AND WITH THE REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION. REFER TO THE OPERATING INSTRUCTIONS FOR APPROVED WATER TREATMENT. TYPE G23 G20: G31: TEST POINT PRESSURE MAX. WORKING PRESSURE mbar mbar mbar 3.45 mbar ELECTRICAL RATINGS: VOLTS: HERTZ: AMPS: 12 A APPLIANCE CATEGORY COUNTRY OF DESTINATION YEAR OF MANUFACTURE MODEL NO. SERIAL NO. DESIGN AND MANFACTURED BY PENTAIR WATER POOL AND SPA, INC. INPUT RATE ORIFICE SIZE MASTERTEMP™ POOL HEATER GAS kW mm 2000 m kW Label P/N GB, BE, DE, FR Hz V GAS SUPPLY PRESSURE: G25: mbar, MasterTemp Pool and Spa Heater Installation and User’s Guide Contents Technical Data / Heater Identification Information (HIN) ............................................................................................. ii - iii Code Requirements / References .............................................................................................................................. iv Consumer Information and Safety / Warnings and Safety Instructions / General Specifications................................. v - vii Section 1. Operations............................................................................................................................. 1 Overview / Important Notices / Warranty Information....................................................................................... 1 Using the Heater’s Control Panel.................................................................................................................. 2 Operating Instructions / Basic System Operation............................................................................................. 3 Basic System Operation / HSI (Hot-Surface Ignition) Lighting/Operation......................................................... 3 Start-up and Operation..................................................................................................................................... 3 Operating Instructions...................................................................................................................................... 4 To Turn Off Gas to Appliance............................................................................................................................ 4 Safety Controls: Air Flow Switch (AFS) / Water Pressure Switch / Height Limit Devices................................. 5 Operation of Ignition Module............................................................................................................................ 6 Temperature Setting / Maximum Temperature Set Point.................................................................................. 6 Section 2. Installation............................................................................................................................. 7 Heater Description................................................................................................................................................................................. 7 Sequence of Operation.......................................................................................................................................................................... 7 Putting the Heater into Service.............................................................................................................................................................. 8 Specifications........................................................................................................................................................................................ 8 Plumbing Connections........................................................................................................................................................................... 9 Valves.................................................................................................................................................................................................... 9 Manual By-Pass.................................................................................................................................................................................... 9 Water Connections................................................................................................................................................................................ 10 Below Pool Installation.......................................................................................................................................................................... 10 Gas Connections................................................................................................................................................................................... 11 Gas Pipe Sizing.................................................................................................................................................................................................. 11 Sediment Trap/Drip Leg ....................................................................................................................................................................... 11 Testing Gas Leaks and Gas Pressure................................................................................................................................................... 12 Gas Pressure Requirements................................................................................................................................................................. 12 Outdoor Installation / Heater Clearances.............................................................................................................................................. 13 - 14 Indoor Venting—General Requirements / Heater Clearances / Outside Vent Removal )..................................................................... 15- 16 Combustion Air Supply ..................................................................................................................................................................... 15 Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting .................................................................................................. 16 Direct Air Intake Duct with 76 mm (3 in - UK) PVC Pipe (Indoor Installation)................................................................................... 16 Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent ........................................................................................... 17 Connecting Single-Wall Stainless Steel Vent to the Heater.............................................................................................................. 18 - 19 Corrosive Vapors and Possible Causes............................................................................................................................................................. 20 Control Panel Indexing.......................................................................................................................................................................... 20 Final Installation Check......................................................................................................................................................................... 20 Electrical Connections........................................................................................................................................................................... 21 Fireman’s Switch Connection/Remote Control Connections................................................................................................................. 21 - 22 MasterTemp Wiring Diagram / Electrical Schematic Ladder Diagram.................................................................................................. 23 - 24 Section 3. Troubleshooting..................................................................................................................... 25 Initial Troubleshooting and Troubleshooting Chart................................................................................................................................ 25 Heater Will Not Fire Troubleshooting (A, B, C, D)................................................................................................................................. 26 - 29 LED Diagnostics (AGS, AFS, HLS, PS Thermistor).............................................................................................................................. 30 - 31 Burner / Heat Exchanger Troubleshooting............................................................................................................................................ 32 Section 4. Maintenance Instructions..................................................................................................... 33 Care and Maintenance.......................................................................................................................................................................... 33 Pressure Relief Valve............................................................................................................................................................................ 33 After Start-Up......................................................................................................................................................................................... 34 Spring, Fall (Autumn) and Winter Operation........................................................................................................................................ 34 Maintaining Pool Temperature / Energy Saving Tips............................................................................................................................ 35 Chemical Balance.................................................................................................................................................................................. 35 - 36 Section 5. Replacement Parts ............................................................................................................... 37-41 ii Contents |
Pentair MT125 Installation and user manual Main Page Preview

Installation and user manual [PDF] (68 pages)

  • Brand: Pentair
  • Model: MT125
  • Format: PDF
  • Key Aspects: Technical Support and Resource Links, Product Performance Metrics, Performance Optimization Tips
  • Updated: 13.05.2026
  • Source File: 1964434.pdf
  • Pages: 68
  • Description: Comprehensive guide for the Pentair MT125.

Document Preview & Text Transcription

Model MT125 Natural Propane 125K (33 kW) with cord 461092 461093 240 VAC NATURAL GAS/LP GAS FOR YOUR SAFETY - READ BEFORE OPERATING • IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. • IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER. • DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE. • DO NOT USE OR STORE FLAMMABLE MATERIALS NEAR THIS APPLIANCE. • DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION. • DO NOT TRY TO LIGHT ANY APPLIANCE. • DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE IN YOUR BUILDING. • IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S PHONE. FOLLOW THE GAS SUPPLIER’S INSTRUCTIONS. • IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE DEPARTMENT. Pentair Water Australia Pty. Ltd.s AU/NZ – Head Office 1-21 Monash Drive, Dandenong South, Victoria 3175 – Australia • 1300.137.344 • Fax 1800.006.668 1620 Hawkins Ave., Sanford, NC 27330, USA • (919) 566-8000 • (800) 831-7133 10951 W. Los Angeles Ave., Moorpark, CA 93021, USA • (805) 553-5000 • (800) 831-7133 For additional free copies of this manual; call AUS: 1300 137 344 - NZ: 0800 654 112. 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. As an additional measure of safety, Pentair Water Australia Pty. Ltd. strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this heater. Improper installation and/or operation will void the warranty. OWNER: Retain For Future Reference (FOR OUTDOOR USE ONLY*) INSTALLATION AND USER’S GUIDE MASTERTEMP 125 POOL AND SPA HEATER (AUSTRALIA) Notice: MasterTemp Heaters are designed for use with NATURAL and PROPANE gas only. (*) For heater indoor use, see page 21. ATTENTION INSTALLER: PLEASE GIVE THIS MANUAL TO THE OWNER AND/OR OPERATOR ONCE INSTALLATION IS COMPLETE. www.pentairwater.com.au - www.pentair.com WHAT TO DO IF YOU SMELL GAS MASTERTEMP 125 Pool and Spa Heater Installation and User’s Guide 460906 Rev. D 8/2020 2 To identify the heater, see rating plate on the inner front panel of the heater. There are two designators for each heater, one is the Model Number and the other is the Heater Identification Number (HIN). a.� Heater�Identification�Number�(HIN) The following example simplifies the identification system: 1) MT : MasterTemp 2) Model Size : 125 : Input rating (Mega Joule [MJ]/hr) 3) Construction : (HD = Heavy Duty Model) 4) Fuel Type : (LP = Propane gas or N = Natural gas) MT 125 HD MT = MASTERTEMP MODEL SIZE = MJ INPUT = Mega Joule [MJ] / HR H. I. N. HEATER IDENTIFICATION NUMBER ID DESIGNATOR FOR PENTAIR WATER POOL AND SPA MASTERTEMP™ 125 HEATER Example: 1 2 3 4 FUEL TYPE = N = NATURAL GAS LP = PROPANE GAS 125 (125 MJ /HR) HD = HEAVY DUTY MODEL N Heater Identification Information Heater Identification Information HEATER IDENTIFICATION INFORMATION — (HIN) The heater data rating plate is located on the inner front panel of the heater. To access the data rating plate, unbolt and remove the side door access panel as shown below. Heater Data Rating Plate Location Door Acess Panel Top Panel Door Acess Panel AUSTRALIA ONLY GAS SAFETY CERTIFICATION DO NOT REMOVE TM 460906 Rev. D 8/2020 MASTERTEMP 125 Pool and Spa Heater Installation and User’s Guide 3 Congratulations on your purchase of a MasterTemp 125 high performance heating system. Proper installation and service of your new heating system and correct chemical maintenance of the water will ensure years of enjoyment. The MasterTemp 125 heater is a compact, lightweight, efficient, induced-draft, gas fired high performance pool and spa heater that can be directly connected to schedule 40 PVC pipe. The heater also comes equipped with the Pentair multifunction temperature controller which shows, at a glance, the proper functioning of the heater. All MasterTemp® 125 heaters are designed with a direct ignition device, HSI (hot-surface ignition), which eliminates the need for a standing pilot. The MasterTemp® 125 heater requires an external power source (240 VAC 50 Hz) to operate. SPECIAL�INSTRUCTIONS�TO�OWNER:�Retain this manual for future reference. This instruction manual provides operating instructions, installation and service information for the MasterTemp 125 high performance heater. The information in this manual applies to all MasterTemp® 125 heater models. READ�AND�REVIEW�THIS�MANUAL� COMPLETELY,�it is very important that the owner/installer read and understand the section covering installation instructions, and recognize the local and state codes before installing the MasterTemp® 125 heater. Its use will reduce service calls and chance of injury and will lengthen product life. History and experience has shown that most heater damage is caused by improper installation practices. IMPORTANT NOTICES For the installer and operator of the MasterTemp pool and spa heater: The manufacturer’s warranty may be void if, for any reason, the heater is improperly installed and/or operated. Be sure to follow the instructions set forth in this manual. If you need more information or if you have any questions regarding to this pool heater, please contact Pentair Water Australia Pty. Ltd. AU/NZ, AUS – at 1300 137 344 or + 61 3 9709 5800. WARRANTY INFORMATION The MasterTemp 125 pool heater is sold with a limited factory warranty. Specific�details�are�described�on�the�war- ranty�registration�card�which�is�included�with�the�product.� Return the warranty registration card after filling in the serial number from the rating plate inside the heater. Pentair’s�high�standards�of�excellence�include�a�policy�of�continuous�product�improvement�resulting�in�your� state-of-the-art�heater.�We�reserve�the�right�to�make�improvements�which�change�the�specifications�of�the�heater� without�incurring�an�obligation�to�update�the�current�heater�equipment. These�heaters�are�designed�for�the�heating�of�chlorine,�bromine�or�salt�system�swimming�pools�and�spas�or�in� non-stationary�installations,�and�should�never�be�employed�for�use�as�space�heating�boilers�or�general�purpose� water�heaters.�The�manufacturer’s�warranty�may�be�void�if,�for�any�reason,�the�heater�is�improperly�installed� and/or�operated.�Be�sure�to�follow�the�instructions�set�forth�in�this�manual. CAUTION OPERATING THIS HEATER CONTINUOUSLY AT WATER TEMPERATURE BELOW 20° C (68° F). WILL CAUSE HARMFUL CONDENSATION AND WILL DAMAGE THE HEATER AND VOID THE WARRANTY. Do not use the heater to protect pools or spas from freezing if the final maintenance temperature desired is below 20° C (68° F), as this will cause condensation related problems. Warning and Safety Instructions IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS MasterTemp 125 High Performance Heater Warning and Safety Instructions MASTERTEMP 125 Pool and Spa Heater Installation and User’s Guide 460906 Rev. D 8/2020 4 Warnings and Safety Instructions CODE REQUIREMENTS • Manufacturer’s Gas Installation Instructions AS/NZS 5263.1.12:2019 • Local Gas Fitting Regulations, • Municipal Building Codes, • S.A.A. Wiring Code, • Local Electrical Regulations • Any other statutory regulations • SANS 10087-1 or SANS 827 AUSTRALIA ONLY GAS SAFETY CERTIFICATION DO NOT REMOVE TM WARNING Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the heater. Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of control system and gas control which has been under water. 1. Spa or hot tub water temperatures should never exceed 40° C. A temperature of 37° C. is considered safe for a healthy adult. Special caution is suggested for young children. Prolonged immersion in hot water can induce hyperthermia. 2. Drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness and subsequently result in drowning. 3. Pregnant women beware! Soaking in water above 37° C. can cause fetal damage during the first three months of pregnancy (resulting in the birth of a brain-damaged or deformed child). Pregnant women should stick to the 37° C. maximum rule. 4. Before entering the spa or hot tub, the user should check the water temperature with an accurate thermometer. Spa or hot tub thermostats may err in regulating water temperatures by as much as 3° C. 5. Persons with a medical history of heart disease, circulatory problems, diabetes or blood pressure problems should obtain their physician’s advice before using spas or hot tubs. 6. Persons taking medication which induce drowsiness, such as tranquilizers, antihistamines or anticoagulants should not use spas or hot tubs. Installation must be in accordance with the following: CONSUMER INFORMATION AND SAFETY WARNING The U.S. Consumer Product Safety Commission warns that carbon monoxide is an “invisible killer”. Carbon monoxide is a colorless and odorless gas. WARNING The U.S. Consumer Product Safety Commission warns that elevated water temperature can be hazardous. See below for water temperature guidelines before setting temperature. 1. Carbon monoxide is produced by burning fuel, including natural gas and propane. 2. Proper installation, operation and maintenance of fuel-burning appliances in the home is the most important factor in reducing carbon monoxide poisoning. 3. Be sure that fuel burning appliances such as heaters are installed by professionals according to manufacturer’s instructions and codes. 4. Always follow the manufacturer’s directions for safe operation. 5. Have the heating system (including vents) inspected and serviced annually by a trained service technician. 6. Examine vents regularly for improper connections, visible cracks, rust or stains. 7. Install battery-operated carbon monoxide alarms. The alarms should be certified to the requirements of the most recent UL, IAS, CSA and IAPMO standard for carbon monoxide alarms. Test carbon monoxide alarms regularly and replace dead batteries. WARNING DO NOT MODIFY THIS APPLIANCE DANGER CARBON MONOXIDE GAS IS DEADLY – Exhaust from this pool heater contains toxic levels of carbon monoxide, a dangerous, poisonous gas you cannot see or smell.

MT125: Related Instructions

Manuals from Other Manufacturers