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INSTALLATION GUIDE AND
OPERATION MANUAL
™
WaterMark
WM-022451
GMK10177
GAS WATER HEATERS
MODEL: M26i(786126)
M26i-50
DO NOT REMOVE
®
AUSTRALIA AND NEW ZEALAND
GAS SAFETY CERTIFICATION
Thank you very much for purchasing our
water heater. Before installing and operating
your water heater, please read this manual
carefully and keep it for future reference.
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Summary of Contents for Midea M26i
- Page 1 INSTALLATION GUIDE AND OPERATION MANUAL GAS WATER HEATERS MODEL: M26i(786126) M26i-50 DO NOT REMOVE ® ™ Thank you very much for purchasing our water heater. Before installing and operating your water heater, please read this manual WaterMark carefully and keep it for future reference.
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Page 2: Table Of Contents
CONTENTS PAGE 1. GENERAL INFORMATION 2. IMPORTANT INFORMATION 2.1. FOR THE INSTALLER 2.2. FOR THE SERVICEMAN 2.3. FOR THE PLUMBER 3. SPECIFICATIONS 4. INTRODUCTION 4.1. DIMENSIONS AND CONNECTION POINTS 4.2. SAFETY GUIDELINES 5. INSTALLATION 5.1. CONFIRMING APPLIANCE SUITABILITY 5.2. SELECTING SUITABLE INSTALLATION LOCATION 5.3. -
Page 3: General Information
1. GENERAL INFORMATION Maximum delivery temperatures Midea gas water heaters are factory pre-set to various maximum delivery temperatures depending on model and their intended application. For the majority of applications, the factory pre-set temperature is appropriate. In the unlikely event this is not the case this setting can be increased or decreased by an authorised person such as a licensed plumber. -
Page 4: Important Information
AS 3498 Clause 7.2.1. Model number M26i-50 unit does NOT require a temperature control device to be installed. Please follow all the instructions in the installation and operation manual and the following additional instructions for the water heater outlet connection. - Page 5 Water Controller 3 Power Priority (OPTIONAL) ENSUITE Water Controller 3 Power Priority (OPTIONAL) ENSUITE Water Controller 2 Power Priority LAUNDRY (OPTIONAL) Water Controller 2 Power Priority LAUNDRY (OPTIONAL) BATHROOM Power Water Controller 1 Priority (OPTIONAL) BATHROOM Water Controller 1 Power Priority (OPTIONAL) KITCHEN...
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Page 6: Specifications
3. SPECIFICATIONS TECHNICAL DATA AND DIMENSIONS Model M26i & M26i-50 Gas Type Natural ULPG Gas Input (MJ/h) Inlet Pressure (kPa) 1.13 2.75 Main Injector (mm) Ø1.8 Ø1.3 Test Point Pressure High/Low (kPa) 0.70 / 0.17 0.89 / 0.22 Water Heating Capacity (Raised 25°C) -
Page 7: Introduction
NOTE • The appliances performance will be reduced where water pressure is below 340 kPa • For information relating to the burner test point pressures and injector sizes, please refer to the name plate (located on the right hand side of the case for each model - please refer to p.10) •... -
Page 8: Dimensions And Connection Points
ACCESSORIES ACCESSORIES ACCESSORIES Check that the installation and operation manual and screws are included with the unit. Check that the installation and operation manual and screws are included with the unit. Check that the installation and operation manual and screws are included with the unit. Screws x 4 Manual Screws... -
Page 9: Safety Guidelines
4.2 SAFETY GUIDELINES Ensure the following warnings and instructions are read and understood before commencing installation. WARNING • Installation and service must be performed by a qualified installer (for example, a licensed plumber or gas fitter) • The installer (licensed professional) is responsible for the correct installation of the water heater and for compliance with all relevant national, state and local regulations •... -
Page 10: Installation
WARNING WARNING • Water temperatures above 50ºC can cause severe burns or death from scalding. Water temperatures above 50 ℃ can cause severe burns or death from scalding. Children, Children, the disabled and the elderly are at a high risk of being injured. Feel the water he disabled and the elderly are at a high risk of being injured. -
Page 11: Selecting Suitable Installation Location
CAUTION • This equipment is not suitable for pool or spa heating. • Water hardness may affect the water heater performance. It is important that the water heater is installed in water conditions that are suitable for long term operation. •... -
Page 12: Clearances For Balanced Indoor Heater Locations
5.3 LOCATION OF FLUE TERMINALS OF BALANCED FLUE, ROOM-SEALED, FAN-ASSISTED OR OUTDOOR APPLIANCES - AS/NZS 5601.1:2013 - FIGURE 6.2 (in part) O p e n i n g i n t o a b u i l d i n g D o o r D i re c t i o n o f S e e N o t e 1... - Page 13 WARNING WARNING WARNING This unit must be installed indoors and must NOT be installed outdoors. This unit must be installed indoors and must Not be installed outdoors. Never use this This unit must be installed indoors and must Not be installed outdoors. Never use this Never use this unit where no compulsory gas supply and exhaust pipe is installed.
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Page 14: Gas Connection
5.4 GAS CONNECTION CAUTION • Turn off the electric power to the water heater and manual gas valve located on the outside of the unit before beginning gas connection. • Confirm the position of the gas inlet. Do not connect water line to gas inlet. It may cause severe damaged. 5.5 SIZING AND CONNECTION SUITABILITY Check the gas type label to make sure that the unit was built for the type of gas you will be using, and that the gas inlet pressure is within the appropriate range (please refer to p.6) -
Page 15: Measuring Inlet Gas Pressure And Testing For Gas Leakage
5.6 MEASURING INLET GAS PRESSURE AND TESTING FOR GAS LEAKAGE The appliance and its gas connections must be measured for inlet gas pressure and leak tested before placing the unit in operation for safe and effective operation. This is only to be done by a licensed professional. 1. -
Page 16: Water Connections
5.7 WATER CONNECTIONS WARNING Do not reverse the hot outlet and cold supply line connections to the water heater as this will cause your heater to operate improperly. • All pipes, pipe fittings, valves and other components, including soldering materials, must be suitable for potable water systems •... - Page 17 Do not reverse the hot outlet and cold supply line connections to the water hea will cause your heater to operate improperly. REMOVE BY TURNING COUNTER CLOCKWISE AND THEN CLEAN AND REPLACE 1. TURN OFF THE WATER INLET 3. REMOVE BY TURNING SUPPLY VALVE.
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Page 18: Electrical Connections
ater heater must be electrically grounded. Do not attach the ground wire to either the gas or piping. 5.8 ELECTRICAL CONNECTIONS ater heater requires an AC 240V 50Hz electrical power supply and draws a current of 0.8A. eather-proof power point should be no more than 1 meter from the base of the water heater for •... -
Page 19: Installation Of Flue Pipe
6. INSTALLATION OF FLUE PIPE 10. Installation guide of flue pipe 10. Installation guide of flue pipe 1. The maximum length flue pipe is 10 meters 10. Installation guide of flue pipe 1. The maximum length flue pipe is 10 metres 1. - Page 20 3. The v l ue pipe needs to be installed with a condensate collector atthe outlet of the water 3. The v 3. The v l ue pipe needs to be installed with a condensate collector atthe l ue pipe needs to be installed with a condensate collector atthe outlet of the water outlet of the water 3.
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Page 21: Remote Controller (Optional)
B. Remote controllers output temperature setting (70°C mode) The emperature setting points are: (For M26i - JSG52-26VH3 model) 38ºC,39ºC,40ºC, 41ºC, 42ºC, 43ºC, 44ºC, 45ºC, 46ºC, 47ºC, 48ºC,49ºC,50ºC,51ºC,52ºC,53ºC,54ºC, • The remote controller is able to adjust the output temperature setting between the range of 38ºC to 65ºC in 55ºC,55ºC,56ºC,57ºC,58ºC,59ºC,60ºC,61ºC,62ºC,63ºC,64ºC,65ºC. -
Page 22: Remote Controller Installation
7.1 REMOTE CONTROLLER INSTALLATION • The remote controller comes with a cable length of 10m. If a longer cable is needed, please purchase shielding line. Cut the original line and bind up the wire according to the polarity to avoid short circuit. a. -
Page 23: Connection Of Remote Controller Wiring
7.2 CONNECTION OF REMOTE CONTROLLER WIRING • Turn off the power supply to the water heater. • Remove the front cover from the water heater. There are 4 screws on the front cover. • Put the remote wires through the hole on the bottom of the unit case. •... -
Page 24: Initial Operation
a.FOR YOUR SAFETY, READ BEFORE OPERATING: Check the GAS and WATER CONNECTIONS for leaks before startup for the first time. 8. INITIAL OPERATION Open the main gas supply valve to the unit using only your hand to avoid any spark. Never use tool If the knob will not turn by hand, do not try to force it;... -
Page 25: Normal Operation
9. NORMAL OPERATION • Flow rate to activate the water heater: 2.3 litres per minute. • Flow rate to keep the water heater running: 1.8 litres per minute. 8.1 WITHOUT REMOTE CONTROLLER 9.1 WITHOUT REMOTE CONTROLLER The DIP Temperature setting Model DIP switch Setting-temperature... -
Page 26: With Multiple Remote Controllers
ure. 9.2 WITH MULTIPLE REMOTE CONTROLLERS ULIPLE REMOTE CONTROLLER INSTALLED Power Priority ON/OFF Reduce Increase button temperature temperature button button e ON/OFF button. Then the Power light is lit on the remote controller and the setting • Press the ON/OFF button. The power light will light up on the remote controller and the temperature setting ature is displayed on the esch remote controller. -
Page 27: Freeze Prevention
9.3 FREEZE PREVENTION CAUTION Any hot or cold water pipes located outside of the unit will not be protected. Properly protection and insulation of these pipes from freezing is required. WINTER SHUTDOWN If the user will not be using the heater for a long period of time, turn off the water heater and drain the water inside the unit. -
Page 28: Maintenance And Service
10. MAINTENANCE AND SERVICE The water heater should be checked at least once a year or as necessary by a licensed technician. If repairs are needed, any repairs should be done by a licensed technician. The water heater’s lifetime may be extended by frequency maintenance. -
Page 29: General Troubleshooting
10.2 GENERAL TROUBLESHOOTING TEMPERATURE AND AMOUNT OF HOT WATER PROBLEM POSSIBLE SOLUTIONS It takes long time to get hot water at the • The time it takes to deliver hot water from the water heater fixtures. to your fixtures depends on the length of piping between the two. - Page 30 WATER HEATER PROBLEM POSSIBLE SOLUTIONS The Unit does not ignite when water goes • Is the flow rate over 3.0l/min? through the unit • Check for the filter on cold water inlet. • Check for reverse connection and cross connection. •...
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Page 31: Pcb Error Codes
10.3 PCB ERROR CODES The water heater is self diagnostic for safety and convenience when troubleshooting. If there is a problem with the installation or the unit, it will display an error code on the remote controller. Consult the following chart for each error code. - Page 32 Thermostat When the system starts or works normally, it is Turn off water flow or (overheating) detected that the overheating protection thermostat shut down to eliminate failure is disconnected, and the thermostat is judged to be faulty Outlet When the system is in a burning state, if the outlet Turn off water flow or temperature over temperature is detected to exceed 85°C for 3...
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Page 33: Wiring Diagram
The DIP Temperature setting The DIP Temperature setting The DIP Temperature setting The DIP Temperature setting The DIP Temperature setting The DIP Temperature setting 10.5 DIP TEMPERATURE SETTINGS M26i M26i M26i M26i M26i-50 M26i-50 M26i-50 M26i-50 M26i M26i M26i-50 M26i-50... -
Page 34: Wi-Fi Module & M-Smart Life App (Optional)
3、Remove the small baffle of the fixing hole of the bottom sealing plate 3、Remove the small baffle of the fixing hole of the bottom sealing plate 4、Install the purchased accessories as shown in the figure 4、Install the purchased accessories as shown in the figure The WiFi module is installed in the WiFi box and then fixed under the bottom shell with screws. -
Page 35: Installation Of Wi-Fi Module (Without Remote Controller)
WARNING Do not jump or short circuit wires, otherwise the PCB may become damaged 11.1 INSTALLATION OF WI-FI MODULE (WITHOUT REMOTE CONTROLLER) In order to use the M-Smart life app for systems without a remote controller, the WiFi module and the WiFi connection switch must be installed as follows: 1. - Page 36 When you select the remote control, you can remove the WiFi connection switch, Because the remote control can realize the corresponding distribution network function. Power Priority ption of remote controller WiFi button distribution network off the water heater, on the water heater and the remote control displays the code "01", ess the "up"...
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Page 37: Using Your Appliance With The M-Smart Life App
According to the App tips, if the product only supports 2.4GHZ wifi communication, please note A large number of devices on the WiFi router can affect network stability, there is no way that Midea can advise a specific number limitation as this depends on router quality and many other factors. - Page 39 Product is subject to change without notice. Please keep this manual for future reference...
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