Commercial High Efficiency Water Heater USE & CARE MANUAL WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR DESIGN CER TIFIED ! ® ! Recognize this symbol as an Indication of Important Safety Information! ! NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance of it should be performed by a qualified, licensed service personnel.
READ THE SAFETY INFORMATION TABLE OF CONTENTS Your safety and the safety of others are very important. There are many important safety messages in this manual and on your appliance. Always read and obey all safety messages. Safety Information Safety Precautions. . . . . . . . . . . . . . . . . . . 3-4 ! Introduction Local Installation Regulations. . . . . . . . . . . 5 Water Heater Location. . . . . . . . . . . . . . . . . . 5 This is the safety alert symbol.
! General Safety Precautions To meet commercial water use needs, the temperature on this water heater is adjustable up to 185°F (85° C). However, water temperatures over 125°F (52° C) can cause severe burns instantly or death from scalds. This is the preferred starting point for setting the control for supplying general purpose hot water.
! General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. Pay particular attention to the following General Safety Precautions. Failure to follow these warnings could result in a fire or explosion, causing property damage, bodily injury or death . Should you have any problems understanding the instructions in this manual, STOP, and get help from a qualified installer or service technician or the gas supplier.
Introduction E. CORROSIVE ATMOSPHERES — The heater should not be installed near an air supply containing halogenated hydrocarbons. For example, the air in beauty shops, dry cleaning establishments, photo processing labs, and storage areas for liquid and powdered bleaches or swim pool chemicals often contain such hydrocarbons. The air there may be safe to breathe, but when it passes through a gas flame, corrosive elements are released that will shorten the life of any gas burning appliance.
Installation WATER CONNECTIONS — This water heater may be connected individually, in multiples with others, or with an external hot water storage tank. Inlet water connections are made to the lower coupling on the heater, and outlet water connections are made to the upper coupling. Each water heater is supplied with the necessary components (Diffuser tubes) to make the water connections that will ensure proper performance. The components are supplied in a bag attached to the water heater.
Installation Plastic Cap Figure 1 - Condensate Trap INSTALLATION OF A CONDENSATE NEUTRALIZER AND PUMP (Not Supplied) CONDENSATE LINE CONDENSATE LINE WITH PUMP TO DRAIN TO DRAIN Condensate line must be pitched down at least 1/4" per foot to properly drain. If this cannot be done or a very long length of condensate hose is used, you must increase the condensate hose to a minimum of 1" ID and place a tee in the line after the condensate neutralizer, to properly reduce vacuum lock in the drain line. 6.
Installation Figure 2. — Typical Installation Drawing.
Installation 7. VENTING — NOTE: This unit can be vented either as a Direct Vent or Power Vent configuration. Refer to Figure 3, for connecting the vent pipe to the water heater. These models can be vented either as a Direct Vent or as a Power Vent water heater. NOTICE: This unit can be vented using only the following recommended pipe material. Use only 2, 3- or 4-inch diameter pipe. Refer to local codes for restrictions on the use of PVC, CPVC or ABS pipe and fittings.
Installation air for combustion. Check to be sure the intake and exhaust terminals are not obstructed, especially during periods of below freezing weather. NOTICE: Stir the solvent cement frequently while using. Use a natural bristle brush or the dauber supplied with the can. The proper brush size is one inch. All intake and exhaust venting components must have the same diameter size. Do not use a different size on the intake and exhaust venting.
Installation Minimum and Maximum Vent Lengths Note: Vent pipe size should not be mixed for venting these units. Use same size pipe fo all venting of the unit. NOTICE: Vent terminals need to be mounted horizontally a minimum of 24 inches (center to center) horizontally apart and a maximum of 36 inches apart (center to center) See Figure 12 for venting multiple units. Power Vent Power Direct Vent Vent Pipe Size ( In. ) Vent Pipe Size ( In. ) 2 Model 3 2 4 Maximum Vent Length for Inlet or Outlet ( ft.
Installation HORIZONTAL VENT INSTALLATION – Once the vent terminal location has been determined, make a hole through the exterior wall to accommodate the vent pipe. Vent pipe must exit exterior wall horizontally only (See Figure 5). Insert a small length of vent pipe through the wall and connect the coupling as shown in Figure 5. Connect terminal as shown to the vent pipe on the exterior of the building. Seal any opening around the vent pipe or fittings with mortar or silicone caulk as shown in Figure 5.
Installation Figure - 7- Typical Horizontal Direct Vent System every 3' mAX.
Installation Figure 8. Typical Vertical Direct Vent System Installation Notice: Intake and exhaust terminals must be on the same outside wall. straight exhaust terminal 24" Min. support bracket 90° intake terminal 24" Above anticipated. snow level. water heater floor Through The Wall Venting With Low Ground Clearance: When venting cannot exit through the wall at a height greater than or equal to 12” (30.
Installation Figure 10 G v H A D E V C B B OPE C V L F I v X X v B LE RAB OPE M v ED FIX ED S CLO v ED FIX ED S CLO v E RABL B v A K J B V Vent Terminal Area Where Terminal is NOT Permitted X Air Supply Inlet Horizontal Vent Terminal Location for Power Direct Vent The following information should be used for determining the proper location of the vent terminal for direct vent water heaters.
Installation pening, the pipe should be installed with a slight upward slope of ¼” per foot. The vent system must be supported every 5 feet of vertical run and every 3 feet of horizontal run of vent pipe length. POWER VENT INSTALLATION: Power venting is where the indoor air is used and the exhaust is vented to the outside. Venting may be run horizontally through an outside wall or vertically through a roof through using either 2" (5.1 cm), 3" (7.6 cm) or 4" (10.2 cm) diameter PVC, ABS or CPVC.
Installation Figure 11 G v H A D E V C B B C V L I v X B v A K X v B LE RAB OPE F M v ED FIX ED S CLO v ED FIX ED S CLO v E RABL OPE J B V Vent Terminal Area Where Terminal is NOT Permitted X Air Supply Inlet Horizontal Vent Terminal Location for Power Vent The following information should be used for determining the proper location of the vent terminal for direct vent water heaters.
Installation Figure 12: Multiple Unit Venting NOTICE: All spacing is horiziontal. Do not stack kits vertically. 24" Min, between heater vents 24" to 36" Heater #1 24" to 36" Heater #2 Exhaust Intake Exhaust Intake Example of 2 Units' Vents. 24" to 36" Heater #1 Intake 24" Min, between heater vents Exhaust 24" to 36" Heater #2 Intake 36" Minimum Exhaust 24" to 36" Heater #3 Intake 24" Min, between heater vents Exhaust 24" to 36" Heater #4 Intake Exhaust Example of 4 Units' Vent.
Installation CONCENTRIC VENT TERMINAL INSTALLATION: PROCEDURE Improper installation, adjustment, service, or maintenance can cause property damage, personal injury, or death. Consult a qualified installer, service agency, or the gas supplier for information or assistance. ! CAUTION DO NOT operate this water heater with the rain cap removed or recirculation of combustion products may occur. Water may also collect inside larger combustion-air pipe and flow to the burner assembly.
Installation Figure 15 - Rain Cap to Small Vent Pipe Assembly NOTICE Ensure termination height is above the roof surface or anticipated snow level. Figure 16. If assembly is too short to meet height requirements, the two pipes supplied in the kit may be replaced by using the same diameter pipe. DO NOT extend the overall dimension by more than 60 inches. See Fig. 15. Install concentric Y fitting and pipe assembly through the structure’s hole and field-supplied roof boot/flashing.
Installation NOTICE: Position termination where vent vapors will not damage plants/shrubs or air conditioning equipment. Install concentric Y fitting and pipe assembly through the structure’s hole and field-supplied roof boot/flashing. Do not allow insulation or other materials to accumulate inside pipe assembly when installing through the hole. Install rain cap and small diameter pipe assembly in concentric Y fitting and large pipe assembly.
Installation Check List A. Water Heater Location ❑ Soap and water solution used to check all connections and ❑ Close to area of vent. ❑ Indoors and protected from freezing temperatures. ❑ P roper clearance from combustible surfaces observed and water fittings for possible gas leak. ❑ Gas Company inspected installation (if required). heater not installed on carpeted floor. D. Relief Valve ❑ Air supply free of corrosive elements and flammable vapors.
Operation Before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the water heater resulting in property damage, bodily injury, or death. Should you have any problems reading or following the instructions in this manual, STOP, and get help from a qualified person.
Operation SAFETY PRECAUTIONS A. Do turn off manual gas shut-off valve if water heater has been subjected to over heating, fire, flood, physical damage or if gas supply fails to shut off. B. Do Not turn on water heater unless it is filled with water. C. Do Not turn on water heater if cold water supply shut-off valve is closed. D. Do Not store or use gasoline or other flammable vapors and liquids, such as adhesives or paint thinner, in vicinity of this or any other appliance.
User Interface Overview of the functionality provided by each button of the user interface. OK: To confirm storage of adjustments to system settings. HELP: Access to heater information in the event of a system fault. MENU: To enter user menu mode for access to Temperatures, Heater Status, and Heater Information. DISPLAY WINDOW: Provides information as changes are made to control. UP/DN: To navigate through heater menus for adjustment of settings.
User Interface Temperature Adjustment : Enter Menu Mode by pressing the “MENU” button on the LCD interface screen, see Figure 11. Press the UP or DN button to move the arrow to the Temperatures header. Press OK to enter the Temperatures submenu, see Figure 12. Figure 12 Menu Mode Water Temperature Setting Figure 13 Temperatures Menu Press the MENU button to return to MAIN MENU screen. To adjust the water temperature set point, press the OK button.
Maintenance Cleaning should be performed if the scale has accumulated above the drain valve opening. A wet-dry shop vac with a nozzle fashioned from 1” and/or 3/4” polyethylene pipe makes a good tool for scraping and removing scale. Properly maintained, this water heater will provide years of dependable, trouble free service. It is strongly suggested that a regular routine maintenance program be established and followed by the owner.
Before You Call For Service… Troubleshooting Tips Save time and money! Review the charts on the following pages first and you may not need to call for service. If the screen on the display is flashing, the burner did not light. To reset the ignition sequence, press the "HELP" button and then the "OK" button (see Display screen at left). On initial startup, it might be necessary to clear the "flashing" screen two or three times, to make sure that the gas has made its way to the burner.
Before You Call For Service… Troubleshooting Tips Save time and money! Review the charts on the following pages first and you may not need to call for service. Problem Possible Cause What To Do Unable to light the main burner Gas Control Problem. Contact a qualified service technician. Incorrect wiring polarity. Make sure that the electrical supply line is wired properly. Unit or Electrical supply line not properly grounded. Verify that Electrical Supply line and unit have proper ground connection.
Replacement Parts Instructions For Placing a Parts Order All parts orders should include: CAUTION: For your safety DO NOT attempt repair of gas piping, gas control burner, vent connectors or other safety devices. Refer repairs to qualified service personnel. ! The model and serial number of the water heater from the rating plate. Specify type of gas (natural or LP) as marked on the rating plate. Part description (as noted below) and number of parts desired.
Wiring and Schematic Diagrams L PK PK AIR FLOW PROVING SWITCH BK BK EXTERNAL DISPLAY TEMPERATURE PROBE BK J5 J5 YL YL J5 J5 BR BR SAFETY LIMIT (ECO) RD RD J12 J5 J5 BK BLOCKED INTAKE/EXHAUST SWITCHES FLUE J16 J16 J13 YL J13 YL J13 J1 ARGUS LINE/ PC CONNECTION BL J5 J5 PROGRAMMING HEADER ON OFF J9 J13 J14 ARGUS LINE BUS POWER BK W J13 S4 J18 J18 GN GN J9 J9 J5 J5 PROGRAMMING JUMPER N IONIZATION YL J13 IGNITION SPARK IGNITER CABLE 1K OR RETURN T2 BURNER AIR FLOW PROV
How to Obtain Service Assistance 1. Should you have any questions about your new water heater, or if it requires adjustment, repair, or routine maintenance, it is suggested that you first contact your installer, plumbing contractor or previously agreed upon service agency. In the event that the firm has moved, or is unavailable, refer to the telephone directory commercial listings or local utility for qualified service assistance.
