A.O. Smith 300 Series Скачать руководство пользователя страница 37 | Manualshive

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37

Note:

Whenever the external control opens the set of dry contacts

used, water heating operation is disabled. Whenever the

external control closes the set of dry contacts used, water

heating operation is enabled. A diagonal line and circle

appears over the thermometer icon on the UIM when water

heating operation is disabled. See Table 11 on page 42.

Note:

Ensure the water heater is protected from freezing

temperatures when water heating operation is disabled.

Damage to the water heater caused by freezing temperatures

is not covered under the limited warranty. See the Residential

Water Heater Limited Warranty supplied with this water

heater.

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Содержание 300 Series

Страница 1: ...ler service agency or the gas supplier Thank you for buying this energy efficient water heater We appreciate your confidence in our products POWER VENT POWER DIRECT VENT GAS MODELS WITH DIRECT SPARK I...

Страница 2: ...ture Protection 26 Installation Sequence 26 Vertical Vent Terminal Installation 26 Flat Roof Installation 26 Sidewall Termination direct vent Clearances 28 Sidewall Termination Clearances Other Than D...

Страница 3: ...imminently hazardous situation which if not avoided will result in injury or death This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety message...

Страница 4: ...stem operation This water heater must be connected to a grounded permanent wiring system or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grou...

Страница 5: ...e beyond the 1 2 adaptor above the adaptor This must be true for the entire length of the drain line including the exit into an appropriate drain Condensate lines must be free and clear of debris and...

Страница 6: ...fter servicing Failure to follow these instructions can result in personal injury or death Fire Hazard Do not install water heater on carpeted floor Do not operate water heater if exposed to flooding...

Страница 7: ...nstaller with a reference It is essential that all venting water piping gas piping and wiring be installed as shown Particular attention should be given to the installation of thermometers at the loca...

Страница 8: ...In Dimensions Units A B C D E F G H I 50G Inches 66 75 49 25 22 00 15 75 3 00 8 00 8 00 62 00 65 00 cm 169 5 125 09 55 88 40 00 7 62 20 32 20 32 157 48 165 1 75G Inches 65 25 45 64 27 75 16 00 3 71 8...

Страница 9: ...ol Valve open All models Maximum Supply Pressure 14 inches W C 3 48kPa Minimum Supply Pressure for Natural Gas 3 50 87kPa Minimum Supply Pressure for Propane Gas 8 00 1 99kPa Minimum pressure must be...

Страница 10: ...Gallon Unit 1 Central Control Board CCB Enclosure 2 Blocked Intake Switch 3 Blocked Outlet Switch 4 Blower Assembly 5 Burner Assembly 6 Flame Sensor 7 Igniter Assembly 8 Junction Box 9 Gas Control Va...

Страница 11: ...Control Board CCB Enclosure 2 Blocked Intake Switch 3 Blocked Outlet Switch 4 Blower Assembly 5 Burner Assembly 6 Flame Sensor 7 Igniter Assembly 8 Junction Box 9 Gas Control Valve Assembly 10 UIM use...

Страница 12: ...the unit Ensure the screen on intake air connection has been removed on direct vent installations See Figure 18 page 25 Also verify the intake air pipe length does not exceed the maximum allowed as sh...

Страница 13: ...ke air piping when installed will remain within the maximum equivalent lengths allowed See Venting Installation page 23 10 Do not locate the water heater where noise such as the Combustion Blower duri...

Страница 14: ...re pressure relief valve Do not cover the instruction manual Keep it on the side of the water heater or nearby for future reference Do obtain new warning and instruction labels from the manufacturer f...

Страница 15: ...ater and the risk of fire or explosion may result It can also create a risk of asphyxiation LOUVERS AND GRILLES The free areas of the fresh air openings in the instructions that follow do not take in...

Страница 16: ...nstalled in the enclosure When ducts are used they shall be of the same cross sectional area as the free area of the openings to which they connect The minimum dimension of rectangular air ducts shall...

Страница 17: ...ufacturer s instructions for installation of the valves Before changing the factory setting on the thermostat read the Temperature Regulation section in this manual Water temperature over 125 F 52 C c...

Страница 18: ...minute 5 minutes 131 55 5 seconds 25 seconds 140 60 2 seconds 5 seconds 149 65 1 second 2 seconds 154 67 8 instantaneous 1 second U S Government Memorandum C P S C Peter L Armstrong Sept 15 1978 GAS S...

Страница 19: ...the gas control valve to help prevent dirt and foreign materials from entering the gas control valve Aremovable connection of proper size between the manual shut off valve and control valve to permit...

Страница 20: ...ater when connected to copper pipe See Figure 14 page 20 also Figure 14 Water Pipe Connections Figure 14 show the typical attachment of the water piping to the water heater The water heater is equippe...

Страница 21: ...floor drain or other safe place Shall not have any valve or other obstruction between the temperature pressure relief valve and the drain Burn hazard Hot water discharge Keep clear of Temperature Pres...

Страница 22: ...ent to obtain the proper setup and instructions before lighting Failure to implement the proper setup will result in improper and inefficient operation of the appliance resulting in production of incr...

Страница 23: ...f CSA B149 1 Natural Gas and Propane Installation Code which requires the vent system components be certified to ULC S636 Approved vent pipe materials that must be used ULC S636 PVC CPVC ULC S636 Poly...

Страница 24: ...the vent manufacturer to adapt to its vent system In order to be in full compliance with UL 1738 or ULC S636 and to meet the requirements of the water heater manufacturer you must use the metal joint...

Страница 25: ...rk both the inside and outside wall Align the holes by drilling a hole through the center of the template from the inside through to the outside The template can now be positioned on the outside wall...

Страница 26: ...SIDE WALLS Drill a pilot hole approximately one quarter inch outside of the marked circle This pilot hole is used as a starting point for a saws all or sabre saw blade Cut around the marked circle st...

Страница 27: ...27 Figure 21 Vertical Vent Termination Separation Clearance Figure 22 Pitched Roof Vertical Vent Termination Snow Clearances Figure 23 Flat Roof Vertical Intake Clearance from Nearby Structures...

Страница 28: ...5 ft 4 6 m Clearance in accordance with local installation codes and the require ments of the gas supplier Termination Clearances for Sidewall Direct Vent Type of Clearance Canadian Installations 1 US...

Страница 29: ...hin a height 15 ft 4 6 m Clearance in accordance with local installation codes and the require ments of the gas supplier Termination Clearances for Sidewall Direct Vent Type of Clearance Canadian Inst...

Страница 30: ...12 MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL Figure 27 Direct Vent Roof Vent Concentric 24 minimum separation Exhaust must be at same level or above intake terminal Snorkelingisallowedto...

Страница 31: ...ermination kit A Cement Y concentric fitting to larger diameter kit pipe See Figure 33 B Cement rain cap to smaller diameter kit pipe See Figure 33 STAINLESS STEEL SCREW AND NUT Figure 32 Securing Rai...

Страница 32: ...re 30 page 31 Note Instead of cementing the smaller pipe to the rain cap a field supplied stainless steel screw may be used to secure the 2 components together when field disassembly is desired for cl...

Страница 33: ...odes or the current edition of the Natural Gas and Propane Installation Code CSA B149 1 1 Once the proper location has been determined cut 2 holes in the wall large enough to accommodate the pipe Pipe...

Страница 34: ...t Vent Air Termination Vent Exhaust Figure 41 Multiple Low Profile Vent Termination Configuration Table 8 Low Profile Termination Kits Dimensions AOS Kit Number IPEX Part Number Description Pipe Outsi...

Страница 35: ...itable building drain or external to the building See Figure 42 Note In cold climates it is recommended the condensate drain be terminated at a suitable drain inside the building 7 Ensure the condensa...

Страница 36: ...with Integral GFCI protection as defined in NFPA 70 CSA C22 1 and UL 943 Read the requirements for the Power Supply on page 17 before connecting power ENABLE DISABLE CIRCUIT The water heaters covered...

Страница 37: ...line and circle appears over the thermometer icon on the UIM when water heating operation is disabled See Table 11 on page 42 Note Ensure the water heater is protected from freezing temperatures when...

Страница 38: ...ere is a local code or state law requiring a certain water temperature at the point of use then special precautions must be taken Burn Hazard To reduce the risk of unusually hot water reaching the fix...

Страница 39: ...eater for high temperature applications to raise the outlet temperature from the larger primary water heater to the desired point of use temperature Contact your local distributor or call the technica...

Страница 40: ...the unit make sure the switch is set to Enable See Features and Components page 10 for location of these and all water heater components POWER SUPPLY BOARD TRANSFORMER CCB BOARD Figure 44 Control Syst...

Страница 41: ...ed by the control system or when the Enable Disable switch on front panel is in disable position Display will read Status Water Heating Disabled Note When water heater is in disabled mode a text messa...

Страница 42: ...heater must be cycled off and on at the breaker to reset the control system Note Cycling power will not reset the control system if the condition that caused the Fault has not been corrected CONTROL S...

Страница 43: ...t the highest setting which produces an acceptable hot water supply Set the Operating Set Point to the lowest setting which produces an acceptable hot water supply for most efficient use Temperatures...

Страница 44: ...These settings should only be used if hot water supply temperature varies greatly from the Operating Set Point setting The Tank Probe Offset is used to calibrate control system temperature sensing Thi...

Страница 45: ...dependent upon the operational state of the water heater Top of Menu Heater Status HELP BACK Status Standby ECO Contact Closed Blocked Inlet PS Closed Blocked Outlet PS Closed Igniter On No Gas Valve...

Страница 46: ...asing the Differential setting to avoid short cycling and excessive component wear See Operating Set Point and Differential Adjustment page 43 This historical data can also be used to assist facilitie...

Страница 47: ...e Slidebar to navigate the menu This menu contains a running total of how many times each Fault condition has occurred since the water heater was first installed Note Historical data is stored in the...

Страница 48: ...ent Contact Info 000 000 0000 Press the and Buttons to change the setting from No to Yes and press ACCEPT to save the new setting Note The Access Code at the bottom of the Service Contact Information...

Страница 49: ...ve for minimum and maximum fire rate Calibration Speed Used by service agents to adjust blower speed to minimum fire rate if required Note Calibration mode will reset back to No when the contact infor...

Страница 50: ...ons will cause a reaction between this rod and the water The most common complaint associated with the anode rod is one of a rotten egg smell in the hot water The smell is a result of four factors whi...

Страница 51: ...uence Of Operation page 57 Ensure the water heater is properly grounded Flame sensing requires an adequate earth ground If the water heater is not properly grounded it will cause ignition failure Be c...

Страница 52: ...I A D N A R E T A W H T I W D E L L I F E B T S U M M E T S Y S E R I T N E G N I T A R E P O E R O F E B A B C D h t i w d e p p i u q e s i t I t o l i p a e v a h t o n s e o d e c n a i l p p a s...

Страница 53: ...igerants swimming pool chemicals calcium and sodium chloride waxes bleach and process chemicals are typical compounds which are potentially corrosive If after inspection of the vent system you found s...

Страница 54: ...ny leaks and immediately correct any if found 7 Restart the water heater as directed in this manual New Unused Anode Rod Partially Consumed Anode Rod Fully Depleded Anode Rod Figure 46 Anode Rod Deple...

Страница 55: ...an 8 Close the water heater drain valve when flushing is completed 9 Remove the drain hose 10 Fill the water heater See Filling the Water Heater page 50 11 Turn on the electrical supply to place the w...

Страница 56: ...ocks the air intake fitting or air intake terminal To ensure continued good performance keep the area around the water heater clean and free from lint and debris Sweep the floor around the water heate...

Страница 57: ...The temperature pressure relief valve may be leaking at the tank fitting E Water from a drain valve may be due to the valve being slightly opened F The drain valve may be leaking at the tank fitting G...

Страница 58: ...ion of various water heater components described in this section 1 When the control system is first powered during boot up it will display water heater model information during initialization After a...

Страница 59: ...erating Set Point minus Differential setting a heating cycle is activated Spark Ignition Transformer is energized 24 V Gas Valve is energized gas flows to Main Burner Is flame sensed at the Main Burne...

Страница 60: ...is still hot Allow the water heater to cool and always use gloves when handling the main burner The combustion chamber and burner sleeve and housing become very hot during operation CAUTION If the Mai...

Страница 61: ...imately 20 seconds and then back on Keep in mind if the condition that caused the Fault has not been corrected the control system will continue to lock out DIAGNOSTIC CHECKS Turn off power to the wate...

Страница 62: ...causes high wind conditions and excessive negative air pressure in building ADVANCED BACK 0 days 0 hr 0 min ago Error Code A8 1201 Blocked Exhaust Restriction in exhaust pipe Check exhaust pipe and te...

Страница 63: ...d anode is free of contamination between the anode top and surrounding metal i e solder loctite WD40 Confirm proper electrical ground to the water heater Inspect powered anode clean replace as needed...

Страница 64: ...Pump Common Pump NO AUX NO AUX Common AUX NC PE CCB J5 Blower Logic 1 White Brown 2 White Blue 4 White Orange 5 White Green 24Vureg PWM Signal Speed f back Dgnd Green Yellow CCB J14 Limit String 1 Bl...

Страница 65: ...UT 11 12 1 J16 J5 J3 J13 J4 J17 J10 J9 J14 J15 J1 J6 J12 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 7 7 8 8 8 9 9 7 10 8 Figure...

Страница 66: ...66 NOTES NOTES...

Страница 67: ...67 NOTES NOTES...

Страница 68: ...68 Copyright 2020 All rights reserved...

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