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Table of Contents
- 1 Important Safety Instructions
- 2 Electrical Connection
- 3 Exploded Diagram of Unit
- 4 Technical Data
- 5 Installation Location
- 6 Cold Water Connection
- 7 Hot Water Connection
- 8 Gas Connection
- 9 Remote Controllers
- 10 Safety Precautions
- 11 Remote Controller
- 12 Installation
- 13 Wiring Diagram and Remote Controls Installation Schematic
- 14 Fault Monitor
- Download this manual
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Table of Contents
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Summary of Contents for Thermann 16NG50
- Page 1 GAS CONTINUOUS FLOW WATER HEATERS INSTALLATION INSTRUCTIONS FOR MODELS 16NG50/16LP50, 16NG60/16LP60, 20NG50/20LP50, 20NG60/20LP60, 26NG50/26LP50, 26NG60/26LP60...
- Page 2 INSTALLATION INSTRUCTIONS...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS Danger DO NOT INSTALL INDOORS The unit is for outdoor installation only. Never install indoors. It will be extremely dangerous because it will cause oxygen deficiency and incomplete combustion. WATCH FOR GAS LEAK Warning When gas leak is noticed, stop using the unit immediately and close the gas valve. -
Page 4: Electrical Connection
ELECTRICAL CONNECTION DANGER OF WET HANDS Do not touch power plug with wet hands. It can cause electric shock. Warning INSERT POWER PLUG FULLY INTO POWERPOINT Check that the power plug is clean and undamaged, Check then fully insert into the power point. DO NOT PULL POWER CORD Do not remove the power plug by pulling the cord. - Page 5 For use as a solar booster, the setting temperature of the Thermann26 must be altered to 70°C (Refer to wiring diagram attached on the unit). For this application, it is suitable to connect to a Thermann solar evacuated tube manifold assembly. In that case, these instructions must be read in conjunction with the Thermann solar hot water system technical (installation) manual.
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Page 6: Exploded Diagram Of Unit
EXPLODED DIAGRAM OF UNIT Model : 16/20 PARTS DESCRIPTION 1. FLUE OUTLET 2. GAS VALVE 3. CIRCUIT BOARD 4. BURNER CASE 5. HOT WATER OUTLET 6. COLD WATER INLET 7. GAS SUPPLY INLET 8. HEAT EXCHANGER Model : 26 PARTS DESCRIPTION 1. - Page 7 DIMENSIONS CONNECTIONS Model : 16/20 50 50 50 50 COLD WATER INLET R1/2 /15 WATER INLET FILTER CABLE ENTRY POINT GAS SUPPLY INLET HOT WATER OUTLET R3/4 /20 COLD WATER INLET R1/2 /15 R1/2 /15 PRESSURE RELIEF VALVE WATER INLET FILTER CABLE ENTRY POINT GAS SUPPLY INLET HOT WATER OUTLET...
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Page 8: Technical Data
TECHNICAL DATA MODEL Nominal hourly gas consumption MJ/h by proportional electronic gas control Test point pressure (NG) 0.56 0.68 Test point pressure (LPG) 0.61 Water heating capacity raised 40°C L/min 10 12.5 16.25 Minimum working pressure Maximum working pressure 1200 Gas injectors diameter (NG) 1.35/1.65 1.35/1.65... -
Page 9: Cold Water Connection
COLD WATER CONNECTION COLD WATER SUPPLY TO WATER HEATER Refer to the Technical Sheet for the position of connections. Copper tube of a minimum size of 1/2 15mm) for 16 and 20 models and 3/4" (20mm) " ( for 26 model should be connected to the appliance. The water inlet connections are R1/2"... -
Page 10: Gas Connection
ELECTRICAL CONNECTION 1. The appliance is equipped with a three pinned earthed plug to be connected to a 240V 50Hz power supply. The electrical rating of the appliance is 0.42/0.45/0.47Amp. for the Thermann 16/20/26 respectively. 2. The appliance requires a 240V 50Hz weatherproof power outlet installed in a protected position adjacent to the appliance. -
Page 11: Remote Controllers
3. CONNECTION OF WIRING TO THE THERMANN UNIT Remove the front cover from the unit. Install the wiring to the Thermann main unit using conduit or by concealing the wires in the wall cavity. Install the wiring into the cabinet through the wiring access adjacent to the power cable. -
Page 12: Safety Precautions
REMOTE CONTROLLERS 4. INSTALLATION OF MAIN CONTROLLER Safety precautions • Connect remote controller cable after heater is unplugged. • N ever install Main remote controller above a combustion appliance like hot plate or a kitchen range. The heat will cause electrical component problems, or deform the exterior. • I nstall Main remote controller where it will not be subjected to splashing water or steam from appliances. • Do not install Main remote controller in direct sunlight. • D o not install Main remote controller where any commercial chemicals such as ammonia, sulfur, chlorine, ethylenic compound and acids etc are used. • The remote controller cables carry low voltage, 12VDC. -
Page 13: Installation
REMOTE CONTROLLERS 5. INSTALLATION OF BATHROOM AND ENSUITE CONTROLLER Safety precautions • Before remote controller installation, check the hole position considering wall stud location. • Note: Do not dismantle the remote controller due to water-proof design. • Do not install remote controller where water will contact the remote controller directly. • The remote controller cables carry low voltage, 12VDC digital. Installation • Drill a 12mm hole in a wall for the remote controller cables. • Feed controller cable to controller wall location. Pull cable end connector through hole. • A fter passing the remote controller cables through the hole. Connect to the quick connector on rear of controller and feed spare cable back into wall. Remove backing paper from adhesive pad on rear of remote controller. Then attach the remote controller to the wall. - Page 14 REMOTE CONTROLLERS 6. COMMISSIONING AND TESTING After completing the installation of the unit, turn the water, power and gas supplies on to the unit. 7. CONTROLS OPERATION Turn the main remote control ON by pressing the ON/OFF button on the control to the ON position.
- Page 15 REMOTE CONTROLLERS CMR-2254 (Main remote Controller) This remote controller is intended to be used in the kitchen, laundry room or utility area. Digital Monitor Indicates the selected water temperature. Error messages flash in the event of a failure. ON Indicator Flame Logo Indicator Indicates power is on to the system.
- Page 16 REMOTE CONTROLLERS YST-2254 Bathroom Controller YST-2254S Ensuite Controller These remote controllers are intended for installation in the bathroom and ensuite. Flame Logo Indicator Indicates that a hot water faucet is open and that control of the temperature is by another controller. ON Indicator Indicates power is on to the...
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Page 17: Wiring Diagram And Remote Controls Installation Schematic
WIRING DIAGRAM AND REMOTE CONTROLS INSTALLATION SCHEMATIC DIP SWITCH ONLY FOR 26NG/26LP WATER FLOW MIN. CONTROL VALVE GAS VALVE MIN. (CONTROL) WATER FLOW SENSOR MODEL PCB NO. NAME 26NG GC-154 TEMPERATURE SENSOR 26LP (INCOMING TEMP.) 16NG 16LP TEMPERATURE SENSOR GC-155 20NG (OUTGOING TEMP.) 20LP... -
Page 18: Fault Monitor
FAULT MONITOR 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 MAIN and BATHROOM or ENSUITE remote controls TEMPERATURE DISPLAY INDICATOR. - Page 20 Works for you. ™ 20732920...
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