Thermann TH28ENR6L Installer Manual Download Page 4

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Thermann Installer's Manual
Gas Continuous Flow Water Heaters

Installation Manual

Potential dangers from accidents during installation and use are divided into the following
three categories. Closely observe these warnings, they are critical to your safety.

Prohibited

Earth

Requests to Installers

• In order to use the water heater safely, read this installation manual carefully, and follow the

installation instructions.

• Failures and damage caused by erroneous work or work not as instructed in this manual are not

covered by the warranty.

• Check that the installation was done properly in accordance with this Installation Manual upon

completion.

• After completing installation, please either place this Installation Manual in a plastic pouch and

attach it to the side of the water heater, or hand it to the customer to retain for future reference.

WARNING:

CAUTION

• The water heater must be commissioned including checking gas supply pressures at maximum

demand.

• The operation of the water heater should be explained including normal operation & regular

maintenance.

CAUTION

Condensing Models

Non Condensing Models

TH50ECR6N
TH50ECR6L

TH32ECR6N
TH32ECR6L

TH28ENR6N
TH28ENR6L

DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

WARNING

CAUTION

DANGER

Summary of Contents for TH28ENR6L

Page 1: ...INSTALLER S MANUAL Gas Continuous Flow Water Heaters Models TH50ECR6N TH50ECR6L TH32ECR6N TH32ECR6L TH28ENR6N TH28ENR6L Installation Details Warranty SBB813X ...

Page 2: ...ructions to customer This appliance must be installed in accordance with the manufacturer s installation instructions all Local Building Water and Gas fitting regulations AS NZS3500 4 AS NZS 5601 AS NZS3000 This appliance delivers water in excess of 50 Degrees C Ensure that suitable devices such as Tempering Valves are installed in lines servicing Sanitation areas per AS3500 4 Failure to install t...

Page 3: ...efore Installation 13 7 Specifications 14 8 Choosing Installation Site 16 9 Installation Clearances 17 10 Installation 19 11 Gas Piping 21 12 Water Piping 22 13 Condensate Piping 24 14 Plumbing Applications 26 15 Electrical Wiring 27 16 Temperature Setting 28 17 Connecting Quick Connect Cord 32 18 Maintenance 33 19 Trial Operation 34 WATER QUALITY 36 3 ...

Page 4: ...stallation please either place this Installation Manual in a plastic pouch and attach it to the side of the water heater or hand it to the customer to retain for future reference WARNING CAUTION The water heater must be commissioned including checking gas supply pressures at maximum demand The operation of the water heater should be explained including normal operation regular maintenance CAUTION ...

Page 5: ...ssories listed below are not included with the units but may be necessary for installation Q ty Shape Part Part Shape Q ty 1 1 1 1 1 1 Included Accessories Optional Accessories Main Controller RC 9018C No CF KRC 9018C indoor 15m cable No CF KRC 9018C EX outdoor 3m cable box Remote Controller Quick Connect Cord 2m No CF 0706891 Remote Controller Cord 3m System Controller SC 401 6M for 1 6 units com...

Page 6: ...0 140 100 70 36 10 19 91 AIR INLET 302 197 184 108 181 125 85 242 246 269 277 67 35 WATER DRAIN VALVE WATER DRAIN VALVE WATER DRAIN VALVE WATER FILTER HOT WATER OUTLET GAS INLET COLD WATER INLET WIRING THROUGHWAYS WIRING THROUGHWAYS WIRING THROUGHWAYS CONDENSATE DRAIN R1 2 CONDENSATE DRAIN GAS INLET R3 4 WIRING THROUGHWAYS HOT WATER OUTLET R1 VIEW FROM TOP COLD WATER INLET R1 6 φ13 12 6 10 OBLONG ...

Page 7: ...135 214 362 99 70 10 36 70 100 140 170 36 70 100 140 170 AIR INLET FLUE COLLAR AIR INLET WATER DRAIN VALVE WATER DRAIN VALVE WATER FILTER HOT WATER OUTLET WATER DRAIN VALVE WATER DRAIN VALVE DRAIN OUTLET GAS INLET COLD WATER INLET WIRING THROUGHWAYS DRAIN OUTLET R1 2 GAS INLET R3 4 WIRING THROUGHWAYS HOT WATER OUTLET R3 4 VIEW FROM TOP COLD WATER INLET R3 4 4 φ13 4 φ13 6 6 10 OBLONG HOLE 6 6 10 OB...

Page 8: ...WATER FILTER HOT WATER OUTLET WATER DRAIN VALVE COLD WATER INLET WIRING THROUGHWAYS Unit mm 336 350 334 252 10 10 28 240 262 120 85 50 60 84 120 4 Φ13 4 Φ13 65 10 8 241 VIEW FROM TOP 36 FLUE COLLAR AIR INLET AIR INLET HOT WATER OUTLET R3 4 2 6 5x13 OBLONG HOLE 3 6 5x16 5 OBLONG HOLE WIRING THROUGHWAY GAS INLET R3 4 COLD WATER INLET R3 4 61 88 600 97 171 41 42 10 10 622 567 175 50 GAS INLET 8 ...

Page 9: ...Component Details Example TH50ECR6 series model shown for illustration only Ex TH50ECR6 9 ...

Page 10: ...Thermann Installer s Manual Gas Continuous Flow Water Heaters TH32ECR6 series model shown for illustration only Ex TH32ECR6 10 ...

Page 11: ...TH28ENR6 series model shown for illustration only Ex TH28ENR6 11 ...

Page 12: ...ord Gas Supply Piping Cold Water Supply Hot Water Remote Controller Terminal Block Cord Connector Cord Connector The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord Typical Plumbing When connecting two units use only a single remote controller The remote controller terminal location may differ depending on the unit Note Connect the rem...

Page 13: ...n otherwise the appliance should be drained This prevents water freezing and causing damage to the water heater WARNING CAUTION For NG Gas Before Installation xx xxxxxxxx xx xx xx xx Check the Gas Check that the data label Side of casing Check that the gas supply line is sized for TH50ECR6N TH50ECR6L 328 MJ hr 328 MJ hr TH32ECR6N TH32ECR6L 217 MJ hr 217 MJ hr TH28ENR6N TH28ENR6L 220 MJ hr 220 MJ h...

Page 14: ...s Consumption NG 328 MJ hr ULPG 328 MJ hr Maximum Hot Water 25 C Rise 50 L min Model Name TH32ECR6N TH32ECR6L Approval certification number SAI 400264 Type Installation Outdoor Wall Mounted Air Supply Exhaust Power Flue Operating Pressure 200 1 000 kPa Minimum Flow Rate 2 5 L min Dimensions 615mm Height x 464mm Width x 240mm Depth Weight 32 kg Water Holding Capacity 2 0 L Connection Sizes Water In...

Page 15: ...ection Sizes Water Inlet R 3 4 20mm Hot Water Outlet R 3 4 20mm Gas Inlet R 3 4 20mm Power Supply Supply 230 240 VAC 50Hz Consumption NG ULPG 75 9 W 75 9 W Freeze Prevention 193W Burner Injector Size NG ULPG 2 4mm 1 5mm Accessories Anchoring Screws Gas Consumption NG 220 MJ hr ULPG 220 MJ hr Maximum Hot Water 25 C Rise 28 L min Specifications may be changed without prior notice The capacity may di...

Page 16: ...llation Site Avoid places where fires are common such as those where petrol benzene and adhesives are handled or places in which corrosive gases ammonia chlorine sulfur ethylene compounds acids are present May result in fire Avoid installation in places where dust or debris will accumulate Dust may block the air supply opening causing the performance of the device fan to drop and incomplete combus...

Page 17: ...nd stagnant air Consult with the customer concerning the location of installation Do not install the water heater near staircases or emergency exits Do not install the water heater where the exhaust will blow on outer walls or material not resistant to heat Also consider the surrounding trees and animals The heat and moisture from the water heater may cause discoloration of walls and resinous mate...

Page 18: ...om an electricity meter or fuse box P see Note 5 500 f From a drain pipe or soil pipe 75 g Horizontally from any building structure or obstruction facing a terminal 500 h From any other flue terminal cowl or combustion air intake 300 300 300 j Horizontally from an openable window door non mechanical air inlet or any other opening into a building with the exception of sub floor ventilation Applianc...

Page 19: ... Installation must conform with all local building water and Gas Regulations and AS NZS5601 The weight of the device will be applied to the wall If the strength of the wall is not sufficient reinforcement must be done to prevent the transfer of vibration Do not drop or apply unnecessary force to the device when installing Internal parts may be damaged and may become highly dangerous Install the un...

Page 20: ... due to vibrations or earthquakes 1 Drill a single screw hole making sure to hit a stud 2 Insert and tighten the screw and hang the unit by the upper wall mounting bracket 3 Determine the positions for the remaining six screws four for the top bracket and two for the bottom and remove the unit Locating Screw Holes Mounting Structure When installing with bare hands take caution to not inflict injur...

Page 21: ...Pa Please ensure measurement is taken when the appliance is operating at maximum load The appliance must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 3 5 kPa The appliance and its gas connections must be leak tested before placing the appliance in operation The inlet gas pressure must be within the range specified This ...

Page 22: ...water heater refer to the figure on the right Do not cover the water drain plug with insulation so that water in the pipe can be drained Refer to the figure in the right Use a union coupling for connecting the pipes to reduce the force applied to the piping When feed water pressure is too high insert a depressurizing valve or take water hammer prevention measure Avoid using joints as much as possi...

Page 23: ...UCTION TO THE PRESSURE RELIEF LOCATED ON THE HOT WATER OUTLET CONNECTION After purging the air from the system using the hot water supply taps remove the water inlet strainer located on the cold water supply inlet connection Remove any debris from the filter and replace When replacing the filter do not over tighten the O ring seal No pressure reduction is required unless the water pressure exceeds...

Page 24: ...ter heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 160ml min TH50ECR6 100ml min TH32ECR6 from the water heater Horizontal runs must be sloped 1 50 downwards the drain or condensate pump The condensate will be discharged by gravity force only Make the drain pipe run as short as possible The end of the drain pipe must not be submerged in...

Page 25: ...pe DO NOT ADD ANY VALVES Condensing Continuous Flow Water Heater Condensing Continuous Flow Water Heater DO NOT ADD ANY VALVES Note If the drain line becomes clogged or frozen condensate will back up into the water heater and a 29 error code will flash on the remote controller ceasing operation If this occurs clear the clog or freeze so that condensate can freely flow Be sure to slope the drain pi...

Page 26: ...p to provide a maximum of 7 5 L min through the system at 3m of head plus piping losses Adjust the flow using a globe valve and verify the flow rate with the maintenance monitors 2 Pump Control Signal is the preferred method to control the recirculation pump A relay connection must be used Only TH50ECR6 series If the Pump Control Signal is not used an Aquastat may be used to control the pump 3 Set...

Page 27: ... heater will not activate resulting in possible freezing damage Do not let the power cord contact the gas piping Tie the excess power cord outside the water heater Putting the redundant length of cord inside the water heater may cause electrical interference and faulty operation Electrical Shock Hazard Do not turn power on until controllers have been connected Disconnect power before servicing Fai...

Page 28: ... maximum temperature set in the water heater The temperature allowed can be changed with adjusting the DIP switches as described below Temperature Setting Do not change any other DIP switches Maximum temperature 1 2 OFF OFF OFF OFF 85 C 55 C 75 C 85 C Check Check ON ON ON ON Do not change any other DIP switches temperature Check Check 1 2 OFF OFF OFF OFF 60 C 55 C 75 C 85 C ON ON ON ON With Remote...

Page 29: ...ord for any extensions Install according to the National Electrical Code and all applicable local codes 1 Check to make sure that the remote controller cord has plenty of slack in order to reach the external connection terminal block 2 Disconnect electrical power to the water heater 3 Remove the single screw securing the terminal block cover and then remove the cover 4 Pass the remote controller c...

Page 30: ...e enough slack so that the remote controller cord will not be damaged if the unit is removed from the wall 3 Remove the front cover of the heater 4 screws 4 Pass the remote controller cord through the wiring throughway and into the unit 5 Connect the Y terminals at the end of the remote controller cord to the terminal block 6 Secure the remote controller cord with a clamp 7 Replace the front cover...

Page 31: ... a wall circuit to the pump 5 Replace the front cover Pump Wiring Only TH50ECR6 series This feature is not available when using the Quick Connect Multi System feature Relay connection with pumps 1 Locate and prepare the pump control wires as described above 2 Choose a suitable installation location for the relay where it will be protected from moisture 3 Connect the pump control wires from the hea...

Page 32: ... Quick Connect Cord tag A B 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 Red 2 Black 3 White 4 Green 5 Blue 6 Blue 1 White 2 Green 3 Red 4 Black 5 Blue 6 Blue The wire coloring on the Quick Connect Cord will not be the same as the wire coloring of the connection plug inside the unit The remote controller can be connected to either unit A or B Do not con...

Page 33: ... ventilation air See Owner s Guide for further maintenance or consult Reece for recommended service checks Warning There is a scald potential if the output temperature is set too high Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance Do not use this appliance if any part has been under water Immediately call a qualified service techn...

Page 34: ...wer supply Using the remote controller turn on the Power ON OFF button the Operation lamp will turn on Handling after trial operation If the unit will not be used immediately close off all gas and water shut off valves drain all of the water out of the unit and the plumbing system to prevent the unit and system from freezing and bleed the gas out of the gas line Freezing is not covered by the warr...

Page 35: ...ns stop and follow the instructions on page 3 of Owner s Guide 6 Turn the gas control manual valve counterclockwise to the on position 7 Turn on electric power to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop any water demand 2 Turn off electric power 3 T...

Page 36: ...r quality table are considered acceptable and generally Australian and New Zealand suburban water supplies fall within these limits parameters In areas of Australia and New Zealand where water may be supplied either fully or partly from bores artesian wells or similar one or more of the important limits may well be exceeded and the heater could therefore be at risk of failure Where uncertainty exi...

Page 37: ... Water Supply Pipe Remote Controller Hot Water Supply Pipe A Installation without a recirculation system Standard System Insulate or apply heating materials to both the cold water supply piping and the hot water supply piping to prevent freezing during cold weather and to prevent heat loss through the piping The remote controller terminal location may differ depending on the unit 37 ...

Page 38: ... water more quickly available to remote fixtures The pump will circulate water through the loop until the entire loop is warm and then the system controller will turn off the pump until the loop cools down Size the pump to provide at least 8 L min 3 m of head piping losses through the system Check the maintenance monitors on the unit to make sure the pump is providing adequate flow Make sure that ...

Page 39: ...s Unit 1 Set Yes for the question Start pump rotation in system settings See SC 401 6M Installation Manual When installing 2 pumps in parallel Set Yes for the question Start pump rotation in system settings See SC 401 6M Installation Manual B 2 Example of Installation with a Storage Tank and Recirculation System Tank recirculation system The pump will push water through the Multi System to heat up...

Page 40: ...ntrol terminal block No 6 90 90 90 90 89 102 PCB Power PCB B5 B5 System Controller No 5 No 4 No 3 No 2 Remote Control terminal block Remote Control terminal block Remote Controller Cord PCB Power PCB PCB Power PCB The remote controller terminal location may differ depending on the unit Connect these to the remote control terminal block in each unit Only TH50ECR6 series and TH32ECR6 series 40 ...

Page 41: ...ng during cold weather and to prevent heat loss through the piping Unit 1 Unit 2 Unit 3 Unit 10 Unit 11 Unit 12 System Controller Unit Remote Controller 1 1 2 5 Cold water supply pipe 1 1 2 5 Hot water supply pipe Standard System The remote controller terminal location may differ depending on the unit Multi System Install one external system controller SCU 401 12M for every 12 units For all models...

Page 42: ...roller This system will make hot water more quickly available to remote fixtures The pump will circulate water through the loop until the entire loop is warm and then the system controller will turn off the pump until the loop cools down Size the pump to provide at least 8 L min 3 m of head piping losses through the system Check the maintenance monitors on the unit to make sure the pump is providi...

Page 43: ...ter storage tank copper or stainless steel pipe Return line circulation pump Size for max flow Size for max flow Storage tank supply line copper or stainless steel pipe Storage tank return line copper or stainless steel pipe B 2 Example of Installation with a Storage Tank and Recirculation System Using external system controller The pump will push water through the Multi System to heat up the tank...

Page 44: ...ower supply Unit 1 Unit 2 Unit 3 CAUTION The below diagram shows the connection of 3 units to the system controller When connecting 4 or more units follow the same procedure Connect the water heaters to the system controller following the detailed wiring instructions included with the system controller Always connect a remote controller to the system controller Do not connect the included remote c...

Page 45: ...s 100m or shorter Connect the remote controller cable to the terminal block of the water heater see Installation Manual provided with the water heater In order to use this product safely read this installation manual carefully and follow the installation instructions Potential dangers from accidents during installation and use are described below Closely observe these warnings they are critical to...

Page 46: ...ation before the setting Choose a place that is easy to use in consultation with our customers It is necessary to get the approval of the visitor Do not be attached to the following place 1 The place where the temperature becomes higher near a gas stove 2 The place where direct rays hit near a window etc 3 The place which requires steam near a gas stove and a rice cooker etc 4 The place which requ...

Page 47: ...all anchor and raised countersunk head screws are not used Top Bottom Top Bottom When attaching to a concrete wall surface Drill a ø6mm hole approx 25mm 30mm in depth and hammer in the wall anchor Attach the mounting bracket using the raised countersunk head wood screws In this case raised countersunk head screws are not used Mounting bracket accessory part Mounting bracket accessory part Wall anc...

Page 48: ... figure below If it does not come off insert a flat head driver into the notch at the bottom of the decorative frame and slightly twist it to remove due caution is required not to scratch the remote controller decorative frame or the wall in doing so Click Click Click Click Put fingers into this gap Main remote controller body Machine screw accessory part If the Y shaped terminal is not covered th...

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