Eternal GU145 Series Installation And Operation Manual Download

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NOTE:

In all cases you may be able to clear the Error Message simply by turning the hot water tap OFF, then ON

again. If this does not clear the Error Message, try pushing the ON/OFF button OFF, then ON again. If the Error
Message still remains, contact our service center or your nearest service agent and arrange for a service call.

1-866-946-1096

7am-7pm CST, Monday through Friday

DIAGNOSTICS

Summary of Contents for GU145 Series

Page 1: ...maintained Failure to follow these instructions exactly could result in a re or explosion serious bodily injury and or property damage Do not store or use gasoline or other ammable vapors and liquids...

Page 2: ...entric Vent Kit Outdoor Vent Kit Installation P25 Vent Pipe Installation Terminator Position P26 Gas Supply Piping P27 LP Conversion P28 Water Supply Connection P29 Condensate Piping P30 Temperature a...

Page 3: ...3 Included Accessories Optional Accessories 0 75mm 2C Wire Hole Plug 1pcs Self Tapping Screw 5 32 x 5 8 2pcs Cap 2pcs Philips Head Screw M8x15 4pcs...

Page 4: ...jection Metal Fiber Infrared Gas Valve System Dual Stage Negative Pressure Full Modulation Air Ratio Internal Piping Material Standard Copper S Option 316L SS M Option 316L SS MCU Reserve Tank Under 2...

Page 5: ...5 Dimensions GU145 S 508 11 12 21 22 1145 S GU195 S M 508 11 12 21 22 1195 S M...

Page 6: ...6 Parts Diagram for Model GU145 S 508 11 12 21 22 1145 S GU195 S M 508 11 12 21 22 1195 S M...

Page 7: ...7 Parts Diagram for Model GU145 S 508 11 12 21 22 1145 S...

Page 8: ...ollar Packing 13 Rubber Foot 14 Drain Valve Assembly 15 Main Power Cord 16 Handle 17 Condensing Nipple 18 Plug 19 Mesh Screen 20 Outdoor Venting Cap Optional 21 Trap Cleaner Assembly 22 Radial Blower...

Page 9: ...9 Parts Diagram for Model GU195 S 508 11 12 21 22 1195 S Parts Diagram for Model GU195 M 508 11 12 21 22 1195 M...

Page 10: ...lve Cash Acme 11 Vent Collar 12 Vent Collar Packing 13 Rubber Foot 14 Drain Valve Assembly 15 Main Power Cord 16 Handle 17 Condensing Nipple 18 Plug 19 Mesh Screen 20 Outdoor Venting Cap Optional 21 T...

Page 11: ...matically lights the burner Do not try to light the burner by hand Smell all around the water heater area for evidence of leaking gas Be sure to smell next to the oor because LP gas is heavier than ai...

Page 12: ...through an outside wall or through the roof using 3 vent piping the total vent run cannot exceed 95 feet with one 90 elbow If more elbows are required the venting distance must be reduced 5 feet for...

Page 13: ...n When this occurs the trap must be cleaned CLEAN OUT OF TRAP The condensate trap must be lled with water prior to using the water heater Fill 3 0 oz water through exhaust collar per gure 1 Eternal wa...

Page 14: ...ng should give a minimum free area of one square inch per 15 000 Btu hour of the total input ratings of all appliances in the enclosed area When combustion air is supplied from inside the building eac...

Page 15: ...of the appliance Locate the water heater in an open unroofed area and maintain the above minimum clearances from combustible materials Exhaust Ventilation Do not have the ue terminal pointing toward...

Page 16: ...nstallation of water heaters in manufactured homes mobile homes and Recreational Park Trailers In the absence of such a standard the water heater should be installed in accordance with the latest edit...

Page 17: ...f the framing is not standard or installing on an uneven surface fasten 3 4 plywood to the stud wall and then attach the wall bracket Hang the unit on the mounted wall bracket and secure bottom of the...

Page 18: ...must be elevated at least 6 off the floor This mounting clearance provides access for clearing any possible debris or accumulated water seepage that can occur below the unit Install the unit on Eterna...

Page 19: ...n vent with the vent pipe of any other water heater or appliance NOTICE VENTING GUIDELINES This water heater must be properly vented for removal of exhaust gases to the outside atmosphere Correct inst...

Page 20: ...to the intake collar for future serviceability Reduce the maximum allowable length for each elbow used as follows 45 degree elbow Deduct 2 feet 90 degree elbow Deduct 5 feet How To Con gure Unit For P...

Page 21: ...xisting vent piping or chimney The total vertical and horizontal runs cannot exceed the maximum length with a maximum number of 90 degree elbows as speci ed in the table of page 20 Eternal can be vent...

Page 22: ...pipe Vent pipe must exit exterior wall horizontally only Place the 1 2 metal mesh screen inside the terminal tting and connect it as shown to the vent pipe on the exterior of the building Seal any op...

Page 23: ...lly vented but next unit vent ternination must be at least 12 inches away from the first unit It is important that vent terminatiion to avoid recirculation of flue gases Concentric Multivent Terminati...

Page 24: ...The connection for the flue gas and air intake system can be positioned on the right as well as on the left side of multi control units Direct Vent Sealed Vent Multi Units With Common Vent POWER VENT...

Page 25: ...ccur and may cause intermittent operation WARNING Outdoor Vent Kit Philips Head Screw M4xL8x6pcs Intake louvers Exhaust Installations must be made with a vent pipe system certi ed to ULC S636 The rst...

Page 26: ...Clearance to each side of center line extended above meter regulator assembly 3 feet within a height 15 feet above the meter regulator assembly I Clearance to service regulator vent outlet 3 feet J C...

Page 27: ...inish and it would not be able to reach maximum performance Size gas piping system correctly following ANSI Z223 1 NFPA 54 or by local code Based on 0 60 specific gravity for natural gas at 0 5 W C pr...

Page 28: ...13 w c maximum pressure Contact the local propane gas supplier for recommended sizing of piping tanks and 100 lockup gas regulator NOTICE 5 Reassemble front panel and apply LP label Prior to start up...

Page 29: ...ING Close water supply shut off valve to the unit rst Connect garden hose to the draining valve located on the lower leftsider of the unit Open the valve by using a at head screw driver to drain water...

Page 30: ...nearest drain is above the water heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 2 GPH from the water heater Horizontal runs must be slop...

Page 31: ...te Internal Pump Control Function Step 1 Push 1 switch of group 2 like below gure Step 1 Unplug power cord of unit Step 2 Make the hole on right side of panel and get rid of burr Step 3 Insert the pum...

Page 32: ...A battery back up may be used to supply hot water during periods of power outages We recommend a computer grade UPS uninterruptable power supply with at least 600VA rating for extened coverage Ground...

Page 33: ...ng 5 screws 3 Open one of the pre cut holes on either side panels of the unit and insert the hole plug 1 Open the main controller PCB cover by removing 1 screw 2 Run wire from the PCB to where the rem...

Page 34: ...of the remote display by loosening 2 screws Secure the Remote controller to the Wall Anchors using the included Mounting Screw 2 pcs and replace the cover to hide the mounting hardware Remote Display...

Page 35: ...NBUS Protocol ensures good communication between units Alternate Host Firing distributes wear and tear across all units every 24 hours Redundancy program allows remaining units to work when a units br...

Page 36: ...power outlet 1 Make sure dip switch 4 to ON position Group 1 No 4 2 Make sure dip switch 6 7 8 OFF position Group 2 No 6 7 8 3 When this switch is on CAN Control Area Network engine is enable and all...

Page 37: ...Installation Operating as a single unit Eternal consumes less than 1A current and the power supplied to unit can be on as low as 2A capacity However when multiple Eternals are used together power sup...

Page 38: ...tion System with an Eternal Water Heater Single Eternal with Storage Back up These diagrams are for reference as basic guides Each installation should be engineered properly and compliant to Local and...

Page 39: ...culation with 2 Units manifold Single Eternal with pre heater i e Solar These diagrams are for reference as basic guides Each installation should be engineered properly and compliant to Local and Stat...

Page 40: ...m with Multiple Units Connection Multiple Units Connection with Storage Back Up These diagrams are for reference as basic guides Each installation should be engineered properly and compliant to Local...

Page 41: ...stat pump and set at 20 F below Eternal temperature setting If unit is not controlling pump by internal relay Size the pump to provide a minimum of 5 0GPM through the system at 10ft of head plus pipin...

Page 42: ...s piped so that its outlet will be farthest from the hot water supply line NOTICE Reverse return system In above drawing there is no path of least resistance water flow will be adequate in each unit R...

Page 43: ...inlet water tubing size 3 4 inches Has a combined T P relief valve been installed Does this valve have a discharge line installed and is it piped to a free owing drain Have all the plumbing connection...

Page 44: ...pening the nearest hot water faucet Allow water to run until a constant ow is obtained This will let air out of the water heater and piping Open a hot water tap to check that water will ow to that tap...

Page 45: ...re setting is only adjustable when the burner is not in use The maximum water temperature setting can be limited by DIP switches This manual setting overrides adjustable temperature settings on the fr...

Page 46: ...st the water temperature Press the either the Hotter up or Cooler down temperature setting button with the unit ON temperature setting is only adjustable when the burner is not in use To lock the cont...

Page 47: ...pection A visual inspection should be made on the venting system at least once a year Clean Up The ue outlet and the air intake hole on the top of the water heater should be checked Clean as needed to...

Page 48: ...48 DIAGNOSTICS Before calling for service review the following diagnostic steps rst for saving time and money...

Page 49: ...wn operation continuously If an error occurs a message will flash on the digital monitor of the front panel This assists with diagnosing the error and may enable you to overcome a problem without a se...

Page 50: ...p OFF then ON again If this does not clear the Error Message try pushing the ON OFF button OFF then ON again If the Error Message still remains contact our service center or your nearest service agent...

Page 51: ...to the water heater Turn the water heater on and open multiple taps to force unit into high re check gas supply pressure at the test port with a manometer with unit in high re Turn the water heater ON...

Page 52: ...52 Wiring and Connection Diagram Wiring Diagram MODEL GU145 S 508 11 12 21 22 1145 S GU195 S 508 11 12 21 22 1195 S...

Page 53: ...53 Wiring and Connection Diagram Wiring Diagram MODEL GU195 M 508 11 12 21 22 1195 M...

Page 54: ...licable codes must be followed or property damage severe injury or death can result Failure to use a licensed plumber or contractor follow venting plumbing and building codes or follow installation in...

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