- DL manuals
- Takagi
- Water Heater
- GS-2000W-AU
- Installation Manual
Takagi GS-2000W-AU Installation Manual
Summary of GS-2000W-AU
Page 1
Installation guide gas water heaters gs-2000w-au / gs-2600w-au for external installation only.
Page 2: Contents
2 contents important ...........................................................2 for the installer .............................................2 for the servicer ...............................................2 for the plumber ..............................................3 specifications ...........
Page 3: Specifications
3 for the plumber please note this water heater is supplied factory set at 50 °c outlet hot water temperature to comply with the requirements of as 3498.2009 . If the water heater is not preset to 50 °c, tempering valve is required. Please follow all the installation instructions in the installation...
Page 4: Introduction
4 introduction • this manual provides information necessary for the installation, operation, and maintenance of the water heater. • the model description is listed on the rating plate which is attached to the right side of the casing of the water heater. (please refer to p. 7.) • please read all ins...
Page 5: Accessories
5 accessories check that the installation manual and screws are included with the unit. Screws × 4 manual dimensions and connection points g a s c o l d h o t g a s h o t c o l d 1 9 3 7 3 3 0 3 5 0 4 9 0 1 2 4 1 3 3 3 3 5 4 4 .5 g a s 5 2 0 4 1 h o t 4 9 c o l d 1 9 8 6 0 9 4 2 1 5 1 8 2 5 4 2 1 5 ...
Page 6: Safety Guidelines
6 safety guidelines ensure the following safety 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 f...
Page 7: Installation
7 installation the water heater requires careful and correct installation to ensure safe and efficient operation. This man - ual must be followed exactly. Read the “safety guidelines” (p.6) and the “important” (p.2) sections at the beginning of this manual. Confirm the appliance suitability check th...
Page 8
8 about selecting an installation location carefully read this section before installing the water heater. When a location for installation has been selected, these precautions must be followed exactly. Caution • this is a water heating apparatus only and the final quality of water delivered is depe...
Page 9
9 clearances for outdoor heater locations – as5601 below eaves, balconies and other projections: ・ appliances up to 50mj/h input ・ appliances over 50mj/h input from the ground, above a balcony or other surface* from a return wall or external corner* from a gas meter (m) (see 5.11.5.9 for vent termin...
Page 10: Gas Connections
10 power cord gas supply inlet gas valve gas connections caution 1. Turn off the electric power to the water heater and manual gas valve located on the outside of the unit before beginning gas connection. 2. Confirm the position of the gas inlet. Do not connect water line to gas inlet. It may be cri...
Page 11: Measuring Inlet Gas Pressure
11 measuring inlet gas pressure and testing gas leakage the appliance and its gas connections must be tested for leak and the inlet gas pressure must be measured before placing the unit in operation for properly performing and safety. This is only to be done by a licensed professional. 1. Shut off t...
Page 12: Water Connections
12 water connections drain plug filter hot water outlet cold water inlet gate or ball valve on inlet 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 component...
Page 13: Electrical Connection
13 electrical connection 1. The water heater must be electrically grounded. Do not attach the ground wire to either the gas or water piping. 2. The water heater requires an ac 240v 50hz electrical power supply and draws a current of 0.8a. 3. The weather-proof power point should be no more than 1 met...
Page 14: Remote Controller (Optional)
14 remote controller (optional) the water heater can be installed with up to three remote controllers. Each remote controller has two functions which can adjust the set temperature and indicate the error code on the remote controller. • the set temperature can be adjusted only by a remote controller...
Page 15
15 connector base warning • do not locate the remote controllers where they may come into contact with water. • do not position the remote controllers in the vicinity of chemicals. • do not position the remote controllers over a cooker, grill or toaster. • do not position the remote controllers wher...
Page 16: To The Water Heater
16 connection of remote controller wiring to the water heater 1. Turn off the power supply to the water heater. 2. Remove the front cover from the water heater. There are 3 screws on the front cover. 3. Put the remote wires through the hole on the bottom of the unit’s casing. 4. Remove the plastic c...
Page 17: Caution: If You Smell Gas:
17 for your safety, read before operating: • check the gas and water connections for leaks before firing it for the first time. • open the main gas supply valve to the unit using only your hand to avoid any spark. Never use tools. If the knob will not turn by hand, do not try to force it; call a qua...
Page 18: Normal Operation
18 normal operation • flow rate to activate the water heater : 3.0 litres per minute • flow rate to keep the water heater running : 2.5 litres per minute without remote controller 1 . Open a hot water tap. 2 . Mix cold water with the hot to get the suitable temperature water. 3 . Close the hot water...
Page 19: Fc100-Au3-Tp
19 with multiple remote controllers installed priority button on/off set temperature display set temperature adjust button burner on lamp lamp priority button fc100-au3-tp priority button on/off set temperature display set temperature adjust button burner on lamp lamp priority button sc100-au3-tp 1....
Page 20: Freeze Prevention
20 freeze prevention this unit comes equipped with heaters that prevent the unit from freezing. For this freeze prevention system to operate, there has to be electrical power to the unit. The freeze prevention devices will not work if the electrical power source is disconnected. The unit has been ra...
Page 21: Maintenance and Service
21 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 frequent maintenance. Warning turn off the electrica...
Page 22: General Troubleshooting
22 general troubleshooting temperature and amount of hot water problem possible solutions it takes a long time to get hot water at the taps. • the time it takes to deliver hot water from the water heater to your taps depends on the length of piping between the two. The longer the distance or the big...
Page 23
23 water heater problem possible solutions unit does not ignite when water goes through the unit. • is the flow rate over 3.0 l/min? (p. 18) • check for the filter on cold water inlet. (p. 21) • check for reverse connection and cross connection. • if you use the remote controller, is the power butto...
Page 24: Pcb Error Codes
24 pcb error codes the water heater has a self diagnostic function for safety and convenience when troubleshooting. If there is a problem with the installation or the unit, it will display a numerical error code on the remote controller or blink the led on the pcb. Consult the following chart for ca...
Page 25: Wiring Diagram
25 wiring diagram temperature set 40 °c 45 °c 50 °c default 55 °c 60 °c error 70 °c error 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 8 7 6 5 on off tmp1 tmp2 tmp3 ...
Page 26: Operating Instructions
26 for your safety read before operating a. This water heater does not have a pilot light. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. B. Before operating smell all around the water heater area for evidence of leaking gas. Be s...
Page 27: Danger
27 danger vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater. Warning the outlet hot water temperature of the water heater is factory se...
Page 28: Warranty Conditions
28 water flow and water temperature the chart is based on properly sized gas line. • the flow rate through the water heater is limited to a maximum of 26.0 (or 20.0) l/min. • the temperature setting, along with the supply temperature of the water will determine the flow rate output of the unit. • pl...