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Wiring Diagram

59

The Technical Data Booklet
that is included with the
water heater contains
specific information for
diagnostic service points,
voltage and resistance
readings.

Layout of wiring and
connection points on the
wiring diagram correspond
directly to the location of
these points on the PCB.

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Содержание RH180

Страница 1: ...Rinnai RH180 Hybrid Tank Tankless Water Heater Installation Fundamentals Level II 1...

Страница 2: ...ation Technicians only call 1 888 RINNAIS 888 746 6247 Engineering Applications Department calls related to product use and applications including sizing Available from 8 a m to 5 p m EST Monday Frida...

Страница 3: ...3 RH180 Hybrid Tank Tankless Water Heater Level II Training Program Installation Fundamentals...

Страница 4: ...hnology 4 Combining Technologies With the combination of a tank and a Rinnai tankless water heater into one appliance the RH180 hybrid provides increased hot water capacity with the ease of a tank ins...

Страница 5: ...ankless water heater engine 40 gallon storage tank cold water supply into tank hot water feed into building Pressure relief valve 4 B vent exhaust connection Combustion air inlet and filter Tank drain...

Страница 6: ...RH180 Sequence of Operation 6...

Страница 7: ...The water will be directed toward the top of the tank close to where hot water is being drawn into the plumbing system 6 Initially as water is drawn from the tank into the engine the Delta T will be...

Страница 8: ...RH180 Water Heater Sizing 8...

Страница 9: ...50 26 11 40 75 000 Btu 75 50 19 32 Rinnai RH180 Hybrid Tank Tankless 91 300 Btu 40 Continuous 11 16 Rinnai Tankless Up to 199 000 Btu N A Continuous Continuous N A Data is based on a 50 F inlet water...

Страница 10: ...RH180 Product Features Safety devices 10...

Страница 11: ...0 gallon storage tank Two inches of insulation no heating element burner or vent stack which helps to minimize standby heat loss Direct electronic ignition No standing pilot Blue zircon glass coated t...

Страница 12: ...condition Burner combustion fan sensor Indicates if there is a blocked flue Flammable vapor sensor Monitors for flammable vapors in intake air supply CO sensor Monitors exhaust gasses for poor combust...

Страница 13: ...fficiency 80 Noise Level 50 dB Electrical 120 VAC 60 Hz Normal Operation 150 watts Standby 3 watts 5 amp fuse Minimum Gas Supply Pressure 4 0 w c Natural Gas 8 0 w c Propane Maximum Gas Supply Pressur...

Страница 14: ...to improper installation The installer should have skills such as Gas sizing Connecting gas lines water lines valves and electricity Knowledge of applicable national state and local codes Installing v...

Страница 15: ...ernational plumbing code for details Gasoline or other flammable substances MUST NOT be stored in the vicinity of the water heater A stand is not required as this water heater complies with the FVIR r...

Страница 16: ...sing a 26 diameter drain pain minimum to provide protection from leaks and still allow removal of the front pipe pump shroud for service Use only an approved drain pan and install in accordance with a...

Страница 17: ...s from both combustibles and non combustibles construction is 0 inches from the sides 0 inches from the back 12 inches from the top 4 inches from the front NOTE These clearances are minimums Be sure t...

Страница 18: ...Dimensions 18...

Страница 19: ...uirements Supply pressure 20 150 psi A temperature pressure relief valve is supplied with the product The discharge must be piped per local code requirements Water quality should meet Part 143 of the...

Страница 20: ...sing potable water If a water heater is installed in a closed water supply system such as one having a backflow preventer a means shall be provided to control thermal expansion expansion tank If requi...

Страница 21: ...Venting and Altitude Requirements WARNING Improper installation of the vent system and its components or failure to follow all installation instructions can result in property damage or serious injur...

Страница 22: ...due to corrosive air is not covered by the warranty Combustion air must be free of acid forming chemicals such as sulfur fluorine and chlorine These chemicals have been found to cause rapid damage de...

Страница 23: ...ered a part of the unconfined space If the unconfined space containing the appliance s is in a building with tight construction additional outside air may be required for proper operation Outside air...

Страница 24: ...water heater and a 100 000 btu furnace Total 191 300 Btu Confined and Unconfined space examples Vent Guidelines Combustion air 24 25 x 25 x 8 5000 cubic feet 5000 cubic feet 50 100 100 x 1000 100 000...

Страница 25: ...quipment in the space If the free area of the louver or grill is not available assume wood louvers will have 25 free area and metal louvers grills will have 75 free area Under no circumstance should t...

Страница 26: ...ng the total volume of the room s must be of adequate volume Greater than 50 cubic feet per 1 000 Btu hr Each combustion air opening must have at least one square inch of free area for each 1 000 Btu...

Страница 27: ...fined space through two permanent openings one commencing within 12 inch 300 mm of the top and one commencing within 12 inches 300 mm of the bottom of the confined space The openings shall communicate...

Страница 28: ...e required free area of the openings to which they are connected When communicating indirectly with the outdoors through vertical ducts each opening shall have a minimum free area of 1 square inch 4 0...

Страница 29: ...ts and the codes of the local utility or other authority having jurisdiction NOTE The vertical height of the Category I venting system must be at least as great as the horizontal length of the venting...

Страница 30: ...a minimum every 6 ft 2 m using suitable clamps and or metal straps Existing exhaust vent or chimney is to be checked to ensure they meet clearances and local codes The RH180 can ONLY be connected to...

Страница 31: ...result in spillage of exhaust gases and ultimately carbon monoxide poisoning Vent Inspection The entire vent system Combustion air ducts louvers and exhaust vent must be checked periodically for sign...

Страница 32: ...tch 3 in the OFF position The maximum allowed altitude for this appliance is 5 400 ft 1 646 meters High Altitude Installations WARNING Do not adjust the other dip switches unless specifically instruct...

Страница 33: ...system you MUST take into account the type pipe and gas being used the inlet gas pressure being fed to the site meter regulator and or tank size and Btu ratings Improperly sized gas system will resul...

Страница 34: ...within the recommendations listed on the unit s rating plate The RH180 requires a higher gas supply than standard 40 gallon tank water heaters The RH180 has a maximum input rating of 91 300 Btu natur...

Страница 35: ...657 985 50 72 151 284 583 873 60 65 137 257 528 791 70 60 126 237 486 728 This gas supply sizing procedure is known as the longest length method This example is for Natural gas A full explanation of...

Страница 36: ...This section requires pipe minimum 2 Outlet B Section 2 can draw up to 75 000 Btu This section requires pipe minimum 3 Outlets C and D section 3 share a common supply pipe which can draw up to a tota...

Страница 37: ...apply high pressure such as 2 lbs to a household appliance unless stated by the manufacturer All Rinnai tankless water heaters require no more than lb inlet pressure 14 w c Regulators are placed close...

Страница 38: ...RH180 Temperature Controller 38...

Страница 39: ...Temperature Controller 39...

Страница 40: ...To display the recovery flow rate in gallons per minute through the unit not the fixture press and hold the UP button After 3 seconds also press the ON OFF button then release both buttons To display...

Страница 41: ...RH180 Maintenance and Warranty 41...

Страница 42: ...nlet filter ensure that the water supply has been turned off If the tank is already full it must be drained from the drain valve at the bottom of the tank See filter location in picture at right Remov...

Страница 43: ...wn into the appliance from the surrounding area To maintain optimum performance periodically clean the air filter Do not operate unit if the filter is not in place A dirty air filter could result in c...

Страница 44: ...o prolong the life of the glass lined tank This anode is slowly consumed protecting the tank from corrosion The anode should be checked every two years If more than half of the anode has been consumed...

Страница 45: ...copper heat exchanger to remove lime scale or calcium buildup Damage caused by lime or scale buildup is not covered under the water heater s warranty Specific flushing instructions can be found in the...

Страница 46: ...Internal view of tank anode rod inside tank cold feed inside tank circulation pump feed line back into tank Bottom pan of tank 46...

Страница 47: ...Supply valve F Cold Water Supply G Thermal Expansion Tank H 4 B Vent I Combustion Air Screen J Operation Unit Temperature Control K Outlet Receptacle L Drain Pan M Temperature Pressure Relief Valve D...

Страница 48: ...2 units Drip pans MUST be installed under each water heater per local or State code 48 Pictures are for illustration Purposes only Parallel Piping recommended method Cold water in Hot water out Series...

Страница 49: ...Component Description 49...

Страница 50: ...Component Description 50...

Страница 51: ...he procedure Air Screen Inspection Detection and Cleaning in the operation installation manual If the error code continues to flash after cleaning the air filter review the items under Code 10 or cont...

Страница 52: ...meter or cylinder Ensure the appliance is properly grounded Licensed professional only Ensure gas type and pressure is correct Ensure gas line meter and or regulator is sized properly Bleed all air f...

Страница 53: ...or the Natural Gas and Propane Installation Code CSA B149 1 Verify dip switches are set properly Check power supply for loose connections Check power supply for proper voltage and voltage drops Ensure...

Страница 54: ...ions in air flow around the unit and vent termination Licensed professional only Check gas type of unit and ensure it matches the gas type being used Ensure dip switches are set to the proper position...

Страница 55: ...used is correct for the unit 30 FV sensor flammable vapor Licensed professional only Check sensor wiring for damage Measure resistance of sensor Replace sensor 31 Burner Sensor 32 Heat exchanger outg...

Страница 56: ...1 Combustion fan Licensed professional only Ensure fan will turn freely Check wiring harness to motor for damage and or loose connections Measure resistance to motor winding 63 Circulation flow rate h...

Страница 57: ...or any foreign material blocking flame at flame rod Measure micro amp output of sensor circuit with flame present Replace flame rod Replace PCB 73 Burner sensor circuit Licensed professional only Chec...

Страница 58: ...ded by the built in circulation pump no code or operation could be the result of the pump not turning on The issue could be the pump is not being commanded to turn on If the tank thermistor is faulty...

Страница 59: ...is included with the water heater contains specific information for diagnostic service points voltage and resistance readings Layout of wiring and connection points on the wiring diagram correspond di...

Страница 60: ...ostat timer or an on demand recirculation system is not incorporated A system that incorporates a continuous recirculation due to timer settings excessive heat loss of the loop or aquastat thermostat...

Страница 61: ...RH180 FAQ 61...

Страница 62: ...ncy is compliant but the Btu for a tank must be less than 75 000 to qualify as a residential water heater 5 What happens if the demand is great enough to deplete the tank If demand is 3 gpm or less th...

Страница 63: ...this would drain the entire tank which would not be viable 10 Are there any high altitude stipulations Installation are permitted up to 5 400 ft only Installations between 2 001 and 5 400 feet requir...

Страница 64: ...RH180 Residential Applications 64...

Страница 65: ...ree 40 gallon tank water heaters 2 gas 1 electric servicing a 5 000 sq ft home The gas units were common vented with a furnace No change to the existing vent was required to install the RH180 The RH18...

Страница 66: ...40 gallon gas tank water heater common vented with existing furnace No change to existing vent was required beyond junction point Before After Before After Installations 66...

Страница 67: ...No change to existing vent beyond junction point Before After Before After Installations 67 40 gallon gas tank water heater common vented with furnace...

Страница 68: ...Before After 40 gallon gas natural tank Venting was changed to 4 using the same roof flashing and penetration Before After Installations 68...

Страница 69: ...Two 40 gallon tank water heaters replaced with one RH180 freeing up valuable storage space Before After Before After Installations 69...

Страница 70: ...70 This concludes the RH180 Water Heater Training Program Level II Installation Fundamentals 401102 12 2013...

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