Thermann 26LP50C, Installer Manual

Page 1: ...INSTALLER S MANUAL Gas Continuous Flow Condensing Water Heaters Models 26NG50C 26LP50C 26NG60C 26LP60C Installation Details Warranty ...

Page 2: ...Thermann Installer s Manual Gas Continuous Flow Condensing Water Heaters ...

Page 3: ...Cold Water Connection 10 Hot Water Connection 10 Gas Connection 11 Electrical Connection 11 Condensate Drain 12 14 Checking Operation 14 Remote Controllers 14 20 Cascade Installation 21 22 Cascade Set Up 22 Cascade Installation Flowchart 23 Wiring Diagram and Remote Controllers Installation Schematic 24 Fault Monitor 25 26 CONTENTS ...

Page 4: ...EEZE PREVENTION This unit comes equipped with anti frost heaters that prevent the water heater from freezing To enable this freeze prevention system to operate there must be an electrical power supply connected to the unit The freeze prevention devices will not operate if the electrical power source is not connected The anti frost heaters are installed inside the water heater only All external hot...

Page 5: ...n and fire DO NOT PULL POWER CORD Do not remove the power plug by pulling the cord as it may generate heat by wire breakage and cause fire Hold the plug when removing the power cord INSERT POWER PLUG FULLY INTO POWERPOINT Check that the power plug is clean and undamaged then fully insert into the power point DANGER OF WET HANDS Do not touch power plug with wet hands It can cause electric shock Pro...

Page 6: ... the gas supply to which it is to be connected If any concerns please report any damage or discrepancies to Reece quoting the serial number and model number which can be found on the outside of the cabinet INSTALLATION MUST BE CARRIED OUT ONLY BY AN AUTHORISED AND APPROPRIATELY LICENSED PERSON This product is an external electronic gas hot water heater These units are factory set to deliver 50 C o...

Page 7: ...LUE OUTLET 2 GAS VALVE 3 CIRCUIT BOARD 4 BURNER CASE 5 HOT WATER OUTLET 6 COLD WATER INLET 7 GAS SUPPLY INLET 8 DRAIN OUTLET 9 PRIMARY HEAT EXCHANGER 10 SECONDARY HEAT EXCHANGER 11 WATER VOLUME PROPORTIONAL VALVE 12 NEUTRALIZER 9 4 10 1 5 3 2 6 8 11 12 7 ...

Page 8: ...IN OUTLET WATER INLET FILTER COLD WATER INLET R3 4 20 GAS SUPPLY INLET R3 4 20 POWER CABLE ENTRY HOT WATER OUTLET R3 4 20 PRESSURE RELIEF VALVE 68 68 68 68 637 573 25 366 599 12 15 205 21 350 DRAIN OUTLET WATER INLET FILTER COLD WATER INLET R3 4 20 GAS SUPPLY INLET R3 4 20 POWER CABLE ENTRY HOT WATER OUTLET R3 4 20 PRESSURE RELIEF VALVE ...

Page 9: ... Certificate of compliance WM 000506 DATA PLATE Left outside of cabinet GAS TYPE The gas label is located on the left outside of cabinet The label will be either Natural Gas or Propane The nominated gas is the gas that this appliance is designed to operate with DO NOT OPERATE WITH ANY OTHER GAS TYPE WARNING LABELS Located on the side of the cabinet PLEASE READ THESE LABELS CAREFULLY INSTALLATION L...

Page 10: ...mbination stop taps and non return valves are not to be used NOTE No pressure reduction valve is required unless the inlet water pressure exceeds 1200kPa at any time COLD WATER CONNECTION Refer to Dimensions diagrams on page 8 for the position of connection The outlet connection is male thread R3 4 20mm and requires union connection to allow for removal of the unit Install the hot water supply lin...

Page 11: ...tion check all joints for leaks with an approved leak tester Refer to AS NZS 5601 Installation Code for pipe sizing details The unit has a maximum hourly gas consumption of 173 MJ h If the gas pipe sizing is insufficient the customer will not obtain the full performance benefit Gas pipe sizing must consider the gas input to this appliance as well as all the other gas appliances in the premises Ser...

Page 12: ...E DRAIN PIPE The content of AS NZS 3500 Temperature Pressure Relief and Expansion Control Valve Drain Lines has been used as a guide in preparing these considerations DRAINAGE OF CONDENSATE WATER Condensate drain outlet connection R1 2 15mm BSP male nylon Note the white plastic shipping cap MUST BE removed from the condensate drain outlet prior to water heater operation In the case that white ish ...

Page 13: ... heaters are installed in a multi story building the condensate drain line may discharge into a common stack subject to the following a The discharge from the common stack is to a tundish having a discharge line that is not less than the size of the common stack directly connected to a fixture trap and installed in connection with any adjacent soil or waste stack b The discharge point of the commo...

Page 14: ...nto them 1 NUMBER OF CONTROLLERS One two or three remote controller panels can be installed as optional extras 2 CONTROLLER LOCATIONS The remote controllers allow the water temperature to be set from the various locations where they are installed at kitchen laundry bathroom and ensuite REMOTE CONTROLLERS CONDENSATE DRAIN AREAS SUBJECT TO FREEZING In areas where water pipes are prone to freezing th...

Page 15: ...ble s The length between the knot and the cable terminal How to connect the cable s to the terminal 1 2 3 4 Make a knot Tie two cables Tie two cables and make a knot on the rest cable Tie the cables two by two Clamp small Clamp medium 1 cable clamp small 2 cables clamp medium 1 cable clamp small 3 cables clamp large 180mm 180mm 1 cable 270mm 2 cables 180mm 2 cables 270mm 2 cables 180mm Attach the ...

Page 16: ...ate or a kitchen range The heat will cause electrical component problems or deform the exterior Do not install the main remote controller where it will be subjected to splashing water or steam from appliances Do not install the remote controller in a position that will be exposed to direct sunlight Do not install the remote controller where any commercial chemicals such as ammonia sulfur chlorine ...

Page 17: ...rom the remote controller Fix the remote controller to the wall with screws 2pcs in the screw holes provided Do not tighten the screws excessively as the screw hole may be damaged In case of mounting the remote controller on tile cement or mortar use appropriate wall anchors Then attach the face plate again Seal the remote controller against the wall by running a bead of suitable sealant around it...

Page 18: ...will be powered on automatically indicating 40 C on the display The remote controllers cannot be turned on until the initial setting of ALL connected remote controllers has been completed NOTE To Reset Remote Controllers When completing the kitchen controller s setting and repeating this procedure for other bathroom or ensuite controllers Hi cannot be selected only Lo is displayed When turning on ...

Page 19: ... and the priority indicator will illuminate Using the or buttons select the hot water temperature required Turn on the hot water supply tap The In Use indicator will show that hot water is being supplied Move to the remote controller in a bathroom and or ensuite if fitted Press the PRIORITY BUTTON and repeat the procedure THERE ARE NO MINOR ADJUSTMENTS THAT CAN BE MADE TO THE UNIT CONFIRM IGNITION...

Page 20: ...nly for 60 C model ON Indicator Indicates power is on to the system UP DOWN Button Increase or decrease the desired water temperature ON OFF Button Power switch to operate this remote controller In Use Indicator Indicates that a hot water tap is open High Temp Indicator Indicates the setting temperature is higher than 50 C Digital Monitor Indicates the selected water temperature Error messages fla...

Page 21: ...o operate together by connecting two units with a 2 wire cable and some simple programming The units will operate in a range between 25 MJ h and 400 MJ h when two units are connected together Depending on water flow and desired temperature the system can automatically operate or stop either or both units Thermann genuine cascade cable can be used to connected the two units The distance between the...

Page 22: ...itch 1 Dip Switch 2 ON 5 7 6 1 4 2 1 2 8 3 OFF ON OFF Combustion Indicator LED To connect the cascade cable refer to How to fix the cables on page 15 4 If connecting optional remote controllers they must be connected to the unit which has been setup as the MASTER unit 5 Energise the SLAVE unit first Then energise the MASTER unit 6 If optional remote controllers are connected follow initial setting...

Page 23: ...ting of remote controllers on page 18 Normal operation Normal operation Is the remote controller connected Is the remote controller s initial setting done 735 error on display No indication on display 15 flashes repeated at 3 sec intervals Flashes at irregular intervals More than 25 times flashes continue Disconnect power to MASTER unit and SLAVE unit CHECK Is Cascade cable properly connected Is D...

Page 24: ... PCB FUSE 250V T5A 2 11 3 4 6 1 Y Y REMOTE CONTROLLER BL G O Y BK BK BK BK AMBIENT TEMP BL BK P W O G R Y W BL BL W W TEMPERATURE SENSOR W W W W OUTGOING TEMP INCOMING TEMP BK GR GR R W BK BK R Y W BL GAS VOLUME ADJUSTING BUTTON DOWN GAS VOLUME ADJUSTING BUTTON UP COMBUSTION INDICATOR BK BK White Black Brown Blue Grey Light Blue Orange Red Green Purple Yellow 10 8 9 W BK BR BL GR LB O R G P Y GC 1...

Page 25: ...FETY DEVICE CALL REECE CUSTOMER CARE 1800 080 055 290 CLOGGING OF NEUTRALIZER CALL REECE CUSTOMER CARE 1800 080 055 311 321 341 THERMISTOR WIRE BREAKAGE CALL REECE CUSTOMER CARE 1800 080 055 510 511 GAS VALVE FAILURE CALL REECE CUSTOMER CARE 1800 080 055 611 COMBUSTION FAN FAILURE CALL REECE CUSTOMER CARE 1800 080 055 651 WATER FLOW CONTROL VALVE FAILURE CALL REECE CUSTOMER CARE 1800 080 055 700 P...

Page 26: ...NT OF NEUTRALIZER CALL REECE CUSTOMER CARE 1800 080 055 When installed with remote controllers the THERMANN HOT WATER UNIT HAS A SELF DIAGNOSING FUNCTION FOR FAULTS When the unit does not operate correctly an error code is displayed on the remote controller TEMPERATURE DISPLAY INDICATOR The cause of the fault can be determined after checking the fault numbers display on the remote controller displ...

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