BRADFORD WHITE EVERHOT TANKLESS GAS WATER HEATER FOR INTERIOR INSTALLATION IGI-180R AND IGI-180C MODEL SERIES WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death Ambler, PA 19002 Tech.
SECTION I: IMPORTANT INFORMATION READ CAREFULLY This gas-fired water heater is design certified by CSA International under the American National Standard, Z21.10.3 (as indicated on the rating plate) and CAN/CGA 4.3-M (as indicated on the rating plate) available from CSA Standards Association, 178 Rexdale Blvd., Etobicoke, Ontario, Canada M9W 1R3. This water heater must be installed in accordance with local codes.
DANGER DO NOT store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. Failure to properly install the vent and air intake (if applicable) system could result in property damage, personal injury, or death. DO NOT install any damaged venting system components. If damage is evident then please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts.
WARNING DO NOT tamper with or alter the water heater and/or controls. DO NOT operate water heater with jumpered or absent controls or safety devices. DO NOT operate water heater if any external part has been under water. Immediately call a qualified service agency to inspect the appliance and to replace any part of the control system including gas controls, which has been under water. DO NOT attempt to use this water heater with any gas other than the type listed on the rating plate.
WARNING Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, closets and areas below ground level will serve as pockets for accumulation of leaking gas. Before lighting, smell all around the appliance area for gas. Be sure to smell next to the floor. IF YOU SMELL GAS: DO NOT try to light any appliance. DO NOT touch any electric switch; do not use any telephone in your building.
SECTION II: SPECIFICATIONS Model No. IGI-180R-10N IGI-180R-10X IGI-180C-5N IGI-180C-5X Model No. IGI-180R-10N IGI-180R-10X IGI-180C-5N IGI-180C-5X Max. Input Rating Btu/hr. 180,000 Max. Input Rating kW/hr. 52.7 Min. Input Rating Btu/hr. 15,000 Min. Input Rating kW/hr. 4.4 Max. Flow Rate @ Degree Temperature Rise Temp Rise 40F 60F 80F 100F 120F 140F Flow Rate Gal/Min. 7.2 4.5 3.3 2.6 2.2 1.6 First Hour Supply Gal/Hr. 432 270 198 156 132 96 Max.
EVERHOT IGI Model Series Dimensions Figure 1 7
SPECIFICATIONS Dimensions (Inches) Clearances from Combustible Materials: Maximum/Minimum Gas Input Rating, Btu/hr.
SECTION III: GENERAL INFORMATION FEATURES The Bradford White EVERHOT IGI series tankless water heater is a high output, high efficiency appliance, which heats the water continuously as hot water is being drawn for use. Unlike tank type storage water heaters, this water heater does not store hot water. The burner operates whenever there is a demand for hot water and is off when the hot water flow stops.
SECTION IV: INSTALLATION INSTRUCTIONS WARNING INSTALLATION OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED PLUMBER. PLUMBING, AIR SUPPLY, VENTING, GAS SUPPLY AND ELECTRICAL WORK ARE REQUIRED. DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT CERTAIN OF THE FOLLOWING: Liquefied petroleum gases/propane gas and natural gas have an odorant added by the gas supplier that aids in detection of the gas. Most people recognize this odor as a “sulfur” or “rotten egg” smell.
WARNING Residential models are suitable for potable water heating only. DO NOT use a residential model water heater for space heating or combination space WARNING heating/domestic water heating. Commercial models may be used for space heating or combination space heating/domestic water heating. Refer to the instructions for space heating in this Installation and Operating Instruction Manual. This water heater is not suitable for use in pool or spa applications.
SECTION V: WATER CONNECTIONS WARNING Failure to install and maintain a new, listed pressure relief valve will release the manufacturer from any claim, which might result from excessive temperature and pressures. Keep clear of the pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash. WARNING DO NOT reverse the inlet and outlet (cold and hot water) connections on the water heater.
2. In order to service the water heater in the event the heat exchanger needs to be flushed of lime deposits, tee fittings with shut off valves and service connections to hoses should be installed. Also install a shut off valve to the hot water supply to isolate the service tee fittings. A plumbing installation kit, which includes these fittings and a pressure relief valve, is available from your supplier. Refer to the piping diagrams (fig. 2-5) in Section V, “Water Connections”. 3.
Recommended Piping for a Basic Installation Figure 2 14
Recommended Piping for a Circulation System Figure 3 15
Recommended Piping for Power Failure Freeze Protection As long as electrical power and gas are supplied to the EVERHOT water heater, freeze protection is provided to the heat exchanger and piping inside the water heater with ambient temperatures as cold as -30F (-34C), when protected from direct wind exposure. In the event of a power failure with ambient temperatures below freezing, the water heater must be drained of all water to prevent freeze damage.
Recommended Piping for Back-up Storage System For hotels, motels, and other high flow applications Figure 5 Note: The Primary Circulator for the water heating loop must be sized for 21 GPM @ 35 Ft. Head.
PRESSURE RELIEF VALVE – WARNING Keep clear of the pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash.
COMBINATION WATER HEATING AND SPACE HEATING APPLICATIONS – COMMERCIAL MODELS ONLY Commercial models may be used for space heating or combination space heating/potable water heating applications provided the following requirements and recommended piping diagrams are carefully followed. WARNING The following instructions must be carefully followed to assure safe and reliable operation of the water heater. All piping components connected to this water heater must be suitable for use with potable water.
SECTION VI: VENTING WARNING The venting system must be properly installed. Failure to properly install the vent system could result in property damage, personal injury, or death. DO NOT install damaged venting system components. If damage is evident then please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts. Use only the vent terminals and vent/air intake components available for venting this water heater.
VENT/AIR INTAKE TERMINAL LOCATIONS Direct Vent Terminal Location Plan the vent system layout so that proper clearances are maintained from plumbing and wiring. Before the vent is installed, determine the vent pipe termination location as shown below in the Vent Terminal Location illustration.
Vent pipes serving power vented appliances are classified by building codes as “vent connectors”. Required clearances from combustible materials must be provided in accordance with information in this manual under LOCATION OF WATER HEATER and CLEARANCES, and with National Fuel Gas Code and local codes. Venting Table – Examples of Maximum Venting Distances with Various Elbow Combinations Maximum Straight Pipe Distance 35 Ft. (10.7 m) 29 Ft. (8.8 m) 23 Ft. (7.0 m) 17 Ft. (5.2 m) 33.5 Ft. (10.2 m) 32 Ft. (9.
If the vent termination height above the water heater exceeds 5 feet (1.5 m), then a condensate collector (available from your Bradford White supplier) will be required within 5 feet of the vent connection of the water heater to collect condensate from the vent pipe. The condensate collector has a ¾” outside diameter male plastic tube for connecting to ¾” CPVC pipe to be routed to a suitable drain.
Horizontal Direct Vent using standard vent kit components: Figure 8 For installations on interior walls, venting components may be purchased from your Bradford White supplier to extend the venting distance using extension tubes and elbows. Use the formula and venting table shown previously in this installation manual to calculate the total equivalent distance of vent pipe. Do not exceed the maximum of 41 equivalent feet (12.5 m). If the height of the vent pipe is extended 5 feet (1.
Vertical Direct Vent Installations The EVERHOT IGI series water heater can also be installed to vent vertically through the roof using a vertical discharge adaptor, optional vent extension tubes, a condensate collector, a roof terminal, and a universal lead tile. In addition to the total equivalent feet limit of 41 feet (12.5 m), the maximum height of the venting system is limited to 21 feet (6.4 m). A condensate collector is required on all vertical venting heights over 5 feet (1.5 m).
Combustion Blower Dip Switch Settings for Vent Length Compensation Under 22 Feet (6.7 m): To assure optimum efficiency and reduced noise levels, the combustion blower switch has two dip switch settings. Dip switch number 1 (top dip switch) is shipped from the factory set to the OFF position to compensate for the maximum vent/air intake length. Depending upon the vent/air intake length of the installation, Dip Switch Number 1 may need to be adjusted to compensate for the venting system distance.
INSTALLATION OF VENTING SYSTEM COMPONENTS WARNING When installing the EVERHOT IGI model series direct vent water heaters, use only EVERHOT vent/air intake system kits and components. Installation and service must be performed by a qualified installer, service agency or the gas supplier. Installation must meet all state and local codes regarding installation and location of vent systems for direct vent appliances. In the absence of local codes, the National Fuel Gas Code, ANSI Z223.
WARNING Before installation inspect each vent component for damage and correct seal placement. Do not attempt to fix or install any damaged vent components. Condensate When the total vent system length is greater than 5 ft. (1,52 m), condensate will form which could damage the water heater. For vent lengths greater than 5 ft. (1,52 m), a condensate collector and trap must be installed.
General Installation Instructions Joint connection Figure 13 Vent connections others must be firmly pressed together so that the gaskets form an airtight seal. Coping with condensation Figure 14 Make sure that the sockets are pointed 1° upwards in order to keep the gaskets dry. (Except for the (short distance) standard horizontal discharge vent system without extensions. See Figure 34.
Condensate drain Every vent system should have a condensate collector unless installed with a total vent length of less than 5 ft. (1,52 m). To prevent condensate from draining back to the appliance, a condensate collector (B) and trap (C) should be installed. Attach condensate collector to the discharge adapter (A). The trap must be inspected annually for obstructions and water content in the trap.
WARNING Improper installations of vent system and components, or failure to follow all installation instructions, can result in property damage or serious injury.
Figure 26 8) condensate collector BWC p/n 239-44501-00 Figure 28 Figure 27 9) vent pipe clamp BWC p/n 239-44493-00 Figure 29 10) vertical discharge roof terminal BWC p/n 239-44494-00 Figure 30 12) flat roof flashing 11) pitch roof flashing (1/12) BWC p/n 239-44502-00 (8/12) BWC p/n 239-44503-00 (6/12) BWC p/n 239-44504-00 Figure 31 13) condensate trap kit BWC p/n 239-44492-00 32
Installation Instructions Everhot Horizontal Discharge Vent System Identify the vent location Figure 32 Steps: - Place horizontal discharge adapter on water heater - Mark position on wall - Or use template provided with water heater - Cut hole, covering the top of the water heater to prevent debris from entering Measure dimension to fit Figure 34 Figure 33 NOTICE Note: if the vent system is shorter than 5 ft.
Final installation of the vent system Figure 35 From the outside of the building, slide the wall discharge terminal through the vent wall passage. A supplied rubber wall plate can be installed on the exterior of the building. Slide the inner wall plate onto the terminal. If necessary apply silicon sealant to fill up spaces between vent terminal and the wall. Vent connections must be firmly pressed together so that the gaskets form an airtight seal.
Horizontal Vent System Installation examples Figure 36 35
Installation Instructions Everhot Vertical Discharge Vent System Figure 37 Identify the vent location Determine the location where the roof discharge terminal will be installed. Taking into account the angle of the roof, cut the hole with a dimension that allows the vertical discharge roof terminal to be installed. Cut to fit The terminal can be shortened by removing the components A+B+C, and then shortening both the inside and outside pipes with the same length X.
Mounting the vent system Figure 39 Vent connections must be firmly pressed together so that the gaskets form an airtightseal. Secure the system with the supplied vent pipe clamp or perforated hanger iron. NOTE When the total vent system length is greater than 5ft. (1,52 m), condensate will form which could damage the water heater. For vent lengths greater than 5ft. (1,52 m), a condensate collector and trap must be installed.
Vertical Vent System Installation examples Figure 40 38
Cut Line Template Figure 41 39
SECTION VII: GAS CONNECTIONS WARNING Connect this water heater only to the type of gas as shown on the rating plate. Use clean black iron pipe or equivalent material approved by local codes and ordinances. (Dirt and scale from the pipe can enter the gas valve and cause it to malfunction). The inlet gas line must have at least a 3 inch (7.62 cm) drip leg (sediment trap) installed as close to the water heater’s gas valve as possible.
GAS METER SIZE – NATURAL GAS ONLY Be sure that the gas meter has sufficient capacity to supply the full rated gas input of the water heater as well as the requirements of all other gas fired equipment supplied by the meter. If the gas meter is too small, ask the gas company to install a larger meter having adequate capacity.
4. Turn power on (after completing electrical connections – refer to Section VIII, “Electrical Connections”) and fully open a hot water tap. 5. Measure the gas pressures to see that these are within the specified limits below: Supply Pressure: Nat. Gas: Min.: 6”, Max.: 10.5” L.P. Gas: Min.: 10”, Max: 13.5” w.c. Manifold Pressure: Nat. Gas: 3.7” w.c. High Fire, 0.8” w.c. Low Fire L.P. Gas: 4.2” w.c. High Fire, 0.9” w.c. Low Fire 6. Turn off the hot water faucets.
Wiring Diagram Figure 42 WARNING DO NOT adjust any dipswitch settings on PC board except Dip Switch #1, if required, for vent length.
Wiring Diagram – Schematic Figure 43 44
TEMPERATURE CONTROLS The front panel temperature control allows the customer to set the hot water supply temperature and will display certain fault functions of the water heater if there is a malfunction. Residential models can also have the option of up to two remote temperature controls located near bathroom fixtures for convenient control of bath and shower temperatures. Residential Models: The Main Control is integrally mounted to project through the front panel of the water heater.
Before installing optional Remote Controls, determine the most convenient locations(s). When deciding on the best location for the remote controls, please consider the following items: 1. Place the controls out of reach of small children. 2. Avoid locations where the control(s) will become hot, such as over a radiator, register, or other heat sources. 3. Avoid direct sunlight. (The digital readout can be difficult to read in direct sunlight). 4.
8. Remove the plastic cover from the PCB and electrical connections. 9. Thread the cable through the access hole at the base of the water heater and connect the wires to the control terminals on the right hand side of the PCB. Refer to the control wiring illustration at the end of this section. 10. Secure the control cable using the clamp provided in the control compartment. 11. Replace the plastic cover over the PCB terminals and then replace the front control panel of the water heater.
NOTICE The default temperature setting displayed for commercial controls that will appear when the water heater is first connected to the electrical supply or in the event of a power interruption is 140F. In most situations, the Main Control on the water heater will suit the customer’s needs and reduce the installation time required. If a remotely located temperature control is desired, a Remote Control (23944509-00) may be purchased from your supplier.
SECTION IX: OPERATING INSTRUCTIONS WARNING Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and direct vent system.
LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. C. Use only your hand to operate the remote It is equipped with a direct ignition control keypad. Never use tools. If the device, which automatically lights remote keypad doesn’t work, do not try to the burner.
CAUTION In climates where below freezing temperatures may occur, the water heater must be drained when power is off to the water heater to prevent freeze damage to the heat exchanger. Drain solenoids are recommended to prevent freeze damage during power failures in cold climate regions. TURNING OFF THE WATER HEATER FOR AN EXTENDED PERIOD OF TIME If the EVERHOT water heater is to be turned off for an extended period of time, the following steps should be taken. 1.
2. To set the desired temperature on the control, all hot water faucets must be closed. If there are Remote Controls installed, press the “Priority” button on the control you want to change the setting on and the yellow “Priority” indicator light will glow. 3. Press the “H” or “C” button until the required temperature is displayed on the digital monitor. All residential controls have a maximum temperature setting of 160F. 4. To operate the water heater, simply turn any hot water tap on.
Commercial Models (See figure 49): 1. Commercial models have the control mounted on the front of water heater, which will allow the outlet water temperature to be adjusted from 96-185F. If a remotely located control is desired, install and wire a second control according to the instructions in the previous section, “Temperature Control Installation”. 2. All hot water faucets must be off to get the full range of temperature adjustment.
SCALDING Water temperature over 125°F can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded. Review this instruction manual before setting temperature at water heater. Feel water before bathing or showering. Temperature limiting valves are available. Figure 50 This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury.
FIRST AID FOR SCALDS 1. Remove all wet clothing quickly. Wet clothing retains the heat. 2. Apply cold water to burned area for 30 minutes to reduce the heat in the skin and prevent deeper burning. Never use butter, oils, or ointment to cover the burn. They may retain the heat. 3. Use a blanket to keep the scalded person warm. 4. Seek medical advice.
SECTION X: MAINTENANCE WARNING Always turn off the electrical power supply, the manual gas valve, and the manual water control valve whenever servicing this appliance. KEEP THE APPLIANCE AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND LIQUIDS. The EVERHOT water heater should be checked annually by a qualified technician. Regular maintenance will keep the water heater operating efficiently and help to assure reliable operation and a long service life. 1.
CAUTION Before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation. FLUSHING PROCEDURE FOR LIME SCALE REMOVAL FROM HEAT EXCHANGER The amount of calcium carbonate (lime) released from water is in direct proportion to water temperature and usage.
Lime Scale Flushing Diagram Figure 52 COMMON TROUBLESHOOTING COMMENTS ON THE OPERATION OF THE EVERHOT TANKLESS WATER HEATER Comment: I don’t have any hot water when I open the tap! Make sure the gas and electricity is turned on to the water heater. The remote temperature display should have the green light lit when a hot water tap is open and the water heater is operating. Make sure there are no error codes flashing on the display.
Schematic Diagram of Internal Parts Figure 53 59
SECTION XI: PARTS LIST Cabinet 1 Temperature Control Included. Note: Can purchase additional controls for remote locations.
Internal Components 61
Internal Components 62
Electrical Components 63
VENTING COMPONENTS PARTS LIST Number 001 002 003 004 005 006 007 008 100 101 102 103 104 105 106 107 108 109 110 110 111 112 113 114 115 116 117 118 119 120 121 122 125 126 Description Casing Assembly Wall Fitting Bracket Rubber Bushing Connection Reinforcement Panel Heat Protection Plate Front Panel Front Panel Gasket Front Panel Gasket – Side Gas Control Assembly Screw Gas Connection (3/4” NPT) Burner Unit Assembly Burner Case Front Burner Case Bottom Panel Burner Air Orifice Plate Bunsen Burners Burner
Number 127 128 129 130 131 132 135 136 137 138 139 140 141 142 145 400 401 402 403 404 405 406 407 408 409 410 411 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 Description Blower Mounting Bracket Blower Gasket Blower Motor Blower Venturi Inlet Plate Bellow Connecting Bracket/Intake Duct Combustion Chamber Bracket Side Air Inlet Box Assembly Bellows Connecting Bracket/Blower Bellows Bellows Clamping Ring Top Air Inlet Box Assembly Ex
Number 800 801 802 803 804 805 810 811 812 813 814 815 816 817 818 238-44958-00 239-44509-00 Description Screw Screw Washer Screw Screw Screw O-Ring O-Ring O-Ring O-Ring O-Ring O-Ring O-Ring O-Ring Gasket Installation and Operating Instructions Temperature Control (all models) Quantity 8 4 4 3 1 3 2 1 1 2 2 2 1 1 2 1 1 VENTING COMPONENTS Part # 239-44516-00 239-44506-00 239-46848-00 239-44500-00 239-44494-00 239-44501-00 239-44492-00 239-44502-00 239-44504-00 239-44503-00 239-44496-00 239-44497-00 239-44
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