GSW POWER VENTED GAS FIRED WATER HEATER Water Heater User Manual
Contents
1. 150 1 Maximum length of ducts in column A is 20 equivalent feet 6 1 meters 2 Maximum length of ducts in column B is 50 equivalent feet 15 2 meters All appliances refers to and includes those appliances using the same air source e g Water heater furnace boiler clothe dryer etc IN EXHAUST VENTING IMPORTANT READ THIS SECTION BEFORE PROCEEDING The Superflue series is designed to exhaust the products of combustion to the outdoors using a sealed vent pipe system Required materials and vent sizing are described in Table 2 Refer to figure 6 to determine the exhaust vent termination position Plan the layout from the vent terminal back to the water heater Take into consideration piping position elbows and support Venting nstructions 1 Refer to Figure 5 and Table 2 for vent pipe materials and sizing gt Use 45 elbows wherever possible gt Do not use 90 back to back elbows and do not use street elbows Maintain 6 150 mm of straight section between elbows Calculate Equivalent Vent Length before starting Do not exceed the values shown in Table 2 Example The water heater is located 12 feet 4 meters from the desired termination point To reach this you determine that you need 3 90 elbows plus about 15 feet 5 meters of 2 50 mm straight section From Table 2 it is seen that each 2 elbow 5 equivalent feet 15 meters Therefore this example uses 302. CAUTION BEWARE OF ANY CONCEALED WIRING OR PIPING INSIDE THE WALL Insert the vent pipe through this hole and secure into position Connect the vent pipe terminal elbow as shown in Figure 5 Seal around the vent pipe with caulking or silicone once the position is finalized Ensure that the Debris Rodent Screen is properly installed Power Vent Connection The plastic vent piping connects into the rubber coupling on the blower assembly See Figure 7 Lightly sand the end of the vent pipe to roughen the outside surface to provide a good mechanical connection with the rubber coupling Loosen the top clamp on the coupling and insert the end of the vent pipe a full 1 35 mm Check that there is no stress inthe vent pipe system caused by twisting or bending Do not use glue or sealant at this connection Tighten top clamp so that the vent pipe is firmly secured in the coupling and is gas tight Do not over tighten or cause distortion of the parts Check that the bottom of the coupling is firmly seated onthe blower outlet and that the bottom clamp is also secure Ensure that there is no movement of the clamped assembly once it is completed IV Water Pipe Connections W ater piping and fittings should be installed as shown in Figure 8 Close main water supply and drain the piping system where water heater is to be connected Water heater inlet and outlet are identified in the top cover see figure 8 W hen att
3. a neighbor s telephone Follow the gas supplier s instructions If you cannot contact your gas supplier call the fire department To start the water heater set the thermostat to the mid point arrow on the dial approximately 120 F 50 C and plug inthe power cord The system will start automatically The gas valve will first do an initial diagnostic to check that it is working properly Once proven the control will energize the blower assembly and power through the pressure and high temperature saf ety switches With pressure and temperature safety switches proven power is sent to the ignition system The ignitor will glow until it reaches optimum temperature Full glow takes approximately 15 seconds W ith ignitor proven the control will open the internal gas valve allowing gas to flow to the burner Main flame is established and envelops the flame sensor rod This rod monitors flame stability If the flame fails the system will shut down The heater will continue to operate until the water temperature reaches the thermostat setting At that time the burner will shut down while the blower continues to operate for a brief post purge sequence The water heater will remain off until the water temperature drops sufficiently to reactivate the system or the thermostat is set to a higher requirement TURNING WATER HEATER OFF 1 Turnthermostat to its lowest setting 2 Turn control switch to the OFF position 3 Turn g
4. in a baseboard hydronic loop will require a dedicated 120V circuit This must be provided and identified for this purpose 6 All piping between the water heater and the air handler or hydronic baseboard loop must be adequately insulated to reduce heat loss 7 If local jurisdiction require a back flow preventer in the cold water line an expansion tank of adequate size must be installed 8 To reduce the scald hazard potential a mixing valve must be installed INSTALLATION The installation of the water heater must follow sections I to X in this manual The heating mode may be one of the following options A A fan coil air handler B A hydronic baseboard finned tube loop In floor heating A Fan Coil see figure 13 The following is a list of requirements for the installation of the heating loop to the water heater 1 Install shut off valves and unions so that the water heater can be isolated from the heating module should servicing of the water heater become necessary 2 Install a drain valve at the lowest point of the heating loop so that water can be drained from the heating module without affecting the water heater 3 If the air handler does not have a venting means at the highest point of the piping arrangement install an air bleed at the highest point of the plumbing arrangement B Baseboard Radiator Heating see figure 13 The following is a list of requirements for the installation of the heating
5. near the water heater A union is recommended for ease of service e Totrap dirt or foreign material in the gas supply a dirt drip leg shall be installed in the piping Apply joint compound pipe dope to the male ends of the threads before joining pipe sections Use only compounds that are compatible with natural gas and propane fuels To prevent damage to the gas valve do not over tighten Purging Caution A Gas line purging is required to eliminate air from the piping system Purging should be performed by persons experienced in this type of gas service Do not purge in confined areas or space where ignition may occur To avoid risk of fire or explosion ensure the area is well ventilated and all sources of ignition are de activated Contact your local gas authority for local requirements IMPORTANT Disconnect the water heater from the gas piping during any high pressure testing above 0 5 p s i Performa leak test at normal gas pressure on all fittings after all connections have been made and the gas has been turned on Soap test all connections of the gas system bubbles indicate leaks Gas Pressure GSW Water Heating Company recommends that the gas supply pressure aS measured on the inlet side of the water heater control be set at 7 0 inches water column for natural gas and 11 0 inches water column for propane gas Electrical Supply A three wire cord and plug is provided with this water heater The plug shall be conne
6. to an adjacent floor drain shall be provided This heater may be installed in a closet or alcove and is certified for operation on a combustible floor WARNING A Do not install directly on carpet nstead place the water heater on a metal or wood panel extending a minimum of 3 75 mm from all sides In alcoves or closets cover the carpet completely Ensure that this panel is capable of supporting the weight of this heater when filled with water FAILURE TO PROPERLY INSTALL THIS HEATER MAY RESULT IN A FIRE HAZARD II AIR REQUIREMENTS General gt An adequate air supply shall be provided for combustion and ventilation of this water heater An insufficient supply can result in poor combustion and possible sooting of the burner combustion chamber or flue passageway This may present a potential fire hazard or could create a serious health hazard by producing carbon monoxide W here an exhaust fan or any other air consuming appliance Eg Clothes dryer furnace etc is installed in the same space as the water heater sufficient air openings must be available to provide fresh air when all appliances are operating simultaneously The area in which the heater is located is classified as either an unconfined space or a confined space An unconfined space is defined as a space having a volume not less than 50 cubic feet per 1000 BTU hour 4 8 cubic meters per kilowatt of combined input rating of all appliances using th
7. ANODE UNDER CAP 16 NIPPLE 17 DIPTUBE 18 T amp P VALVE 19 DRIPTUBE 20 BAFFLE ASSEMBLY 21 CONTROL VALVE WHC 22 CONTROL VALVE COVER WHC 23 INNER GAS DOOR 24 OUTER GAS DOOR 25 DRAIN VALVE 26 FLARE TUBE GAS SUPPLY 27 IGNITER ASSEMBLY 28 FLAME SENSOR 29 IGNITER BRACKET 30 ORIFICE 31 AIR SHUTTER 32 CAST IRON BURNER 33 SHEET METAL BURNER 34 HEATING SYSTEM SUPPLY optional 35 HEATING SYSTEM RETURN optional OWNER SUPPLIED DRAIN PAN IF REQUIRED CAST IRON BURNER ASSEMBLY SHEET METAL BURNER ASSEMBLY I Introduction We thank you for choosing a GSW J ohn Wood Water Heater Your satisfaction with this product is very important to us This gas fired water heater has been developed to produce potable hot water and may also be used in combination with space heating applications The Superflue IM series is designed to vent the products of combustion flue gases horizontally through an exterior wall or vertically through the roof using an integrated blower assembly and plastic piping without the need for a conventional chimney I mportant Consumer No
8. GSW WATER HEATING COMPANY TD S JN 599 HILL ST WEST FERGUS ONTARIO N1M 2X1 CANADA SUPERFLUE POWER VENTED GAS FIRED WATER HEATER INSTALLATION AND OPERATING INSTRUCTIONS Read these instructions WARNING If the information in these instructions is en 15 WE agadi se TITON to this manual For AN ART FO DO VEUSMEL GAC Sut a Do not touch any al ctrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department thoroughly before starting TABLE OF CONTENTS I a ici Il Air Requirement IB WO A A O A E PP EGO EE DO IV Water Piping 100 Plutarco lei a A A IN hReen herren ere E mamak aka VII Service And Maintenance VIII Combo Heating IX Troubleshooting X Warranty This Manual Applies to Electronic Ignition Power Vented Water Heater Check The Specific Venting Label On The Water Heater For Details PLEASE RETAIN THESE INSTRUCTIONS IN A SAFE LOCATION FOR FUTURE REFERENCE PART NO 50000 REV FF 06 99 REPLACEMENT PARTS LISTING CLEARANCE TO COMBUSTIBLES 1 TERMINATION ELBOW 2 PIPE LENGTH 3 PIPE COUPLING 4 PIPE ELBOW 90 5 RUBBER COUPLING 6 AIR TUBING 7 AIR SWITCH 8 JUNCTION BOX 9 JUNCTION BOX COVER 10 POWER CORD 11 BLOWER 12 BLOWER SUPPORT BRACKET 13 DRAFT DIVERTER 14 HIGH LIMIT SWITCH 15
9. TENANCE Condensation Water vapor in the flue gases can condense on the cooler surfaces of the water heater especially during the start of a cold tank during heavy use or if the water heater is undersized Condensation can also be produced in the vent piping if the vent piping becomes chilled e g going through unheated areas or if the dilution air is very cold Condensation may give the false impression that there is a tank leak as significant amounts can drip out of the bottom of the water heater Once the water heater is operating at normal temperatures tank condensation should disappear See venting section for dealing with condensation in the vent piping Cathodic Protection Anode gas supply These conditions must be corrected to prevent a possible safety hazard Your water heater has been supplied with an anode rod that protects the tank from corrosion As the rod works it slowly dissolves over time and must be replaced when it becomes totally consumed Depending on water conditions an anode can last from two to ten years As with any water heater it is good practice to check the anode annually to see if it needs replacing Figure 1 I tem No 15 To inspect or change an anode turnoff the water heater close the cold inlet supply valve opena hot water tap supplied by the heater drain the water heater enough to empty the piping system usinga 17 15 socket remove anode and inspect or replace as requ
10. The replacement control must be an identical model to the control which has been removed W ater Temperature is Too Hot Check that thermostat setting is not too high Water heaters used for dishwashers space heating or laundry facilities generally require higher temperatures than domestic use Install anti scald tempering valves as instructed in the saf ety warnings f the problem persists contact your dealer or gas supplier Hydrogen gas can be produced by water heaters in service but on standby for long periods of time generally two weeks or more See safety warnings inthe front of the manual Hydrogen gas is extremely flammable Use caution in opening faucets Tank Flushing Periodically monthly drain approximately 2 gallons 8 liters fromthe tank through the drain valve This will minimize sediment buildup on the tank bottom Caution WATER WILL BE HOT If scale removal is being considered contact your dealer for proper procedures DO NOT USE HYDROCHLORIC ACID HCL based cleaners Thoroughly flush after any chemical cleaning Vent Maintenance Inspect the venting system periodically minimum annually to make certain that the venting passageways vent terminal and blower assembly are free and unobstructed Check that the vent connections are free and unobstructed Check that the vent connections and vent joints are properly positioned and securely attached In areas that have a high level of airborne particles e
11. aching solder sweat fittings DO NOT APPLY HEAT DIRECTLY TO THE WATER HEATER NIPPLES or the plastic liners will be damaged Sweat adapters to the first section of the water piping before threading onto the water heater Install a manual shut off valve in the cold water supply line It is good plumbing practice to include unions at the hot and cold connections as shown Fig 8 IMPORTANT Before putting the water heater into service make sure that a properly rated and sized temperature and pressure relief valve is installed in the designated fitting in the water heater The relief pressure marked on the relief valve must not exceed that stated on the rating plate of the water heater IMPORTANT The relief valve must be connected to a discharge or drain pipe no smaller in size than the outlet of the relief valve This pipe must not be valved plugged allowed to freeze or be restricted in any way Terminate close to a drain of adequate capacity The relief valve is necessary to avoid excessive water pressure or water temperature from developing Such a condition could cause serious personal injury due to scalding or serious physical damage to the water heater This safety device shall be checked annually for proper operation Check local Codes W ith water piping installed check that a hot water faucet served by the water heater is open and that the heater drain valve is closed Open the cold water supply valve and fill the water
12. as supply valve OFF 4 If the blower is still running wait for it to stop 5 Unplug electrical cord Performance Checks 1 Burner Manifold Pressure The burner operates at a manifold gas pressure of 3 5 W C for natural gas and 10 0 W C for propane gas A _ N P T port is provided on the gas valve control for connection to a gauge to measure the pressure See Figure 11 The control valve has an internal pressure regulator Do not confuse the manifold pressure with the supply inlet pressure Return port plug upon completion of tests 2 Checking nput Never exceed input shown on the rating plate Ask your gas supplier for the heating value of the gas you are using Check the input by clocking the gas meter Make sure no other appliances are operating when the test is being done To ensure accuracy clock enough gas so that the time is greater than 60 seconds Use the following f ormula to check input Check that your gas pressures are as previously stated Input Gas Heating Value x Cubic Feet Meters clocked BTU Hour 7 Seconds clocked Gas Heating Value in BTU cubic feet or cubic meters 1 cubic meter 35 31 cubic feet 3 Checking burner flame Superflue W ater Heaters may use either a sheet metal or cast iron burner Access the burner by lifting off the outer gas door and sliding open the inner door located at the bottom of the water heater e for water heaters having a sheet metal burner and burning na
13. cted into an electrically grounded 120 VAC 60 Hz 12 Amps fused receptacle The electrical supply must meet the minimum provisions as stated in the National Electrical Code for U S customers and in the Canadian Electrical Code f or Canadian customers The electrical controls used inside the thermostat gas valve mounted on this water heater is polarity sensitive Ensure that the electrical supply is properly connected in the receptacle box Failure to connect properly will cause the unit not to function See Figure 10 HIGH LIMIT SWITCH G GREEN i N WHITE AIR PRESSURE L1 BLACK l l SWITCH 5 YELLOW i N JUNCTION BOX 222 IGNITER Ginna of FLAME SENSOR CONNECTOR IGNITER Es es E ET PRESSURE LIMIT GND SWITCH SWITCH i 1 3 5 7 s 6 L1 N GND 11 Important in locations where a sump pump failure flooding or exposure to water may be present a ground fault receptacle is recommended VI Lighting and Operating I nstructions WARNING READ BEFORE PROCEEDING If you do not understand and follow these instructions a fire or explosion may result This Superflue Water Heater is equipped with a
14. e space Adjacent open rooms may be included as part of the unconfined space There shall be no closeable doors between these rooms An example of this is an open basement A confined space is one smaller than described above Air shall be supplied through permanent openings as described in Figures 3 and 4 At no time shall an air opening have a dimension of less than 3 75 mm and at no time shall any top opening be lower than the top of the water heater For buildings that are not well sealed do not have tight fitting doors and windows natural air infiltration may provide suf ficient air required for combustion and ventilation For buildings using tight construction newer and renovated structures the air supply shall be introduced from the outdoors regardless of whether the space is confined or unconfined Combustion Air Supply Ducts Air supply ducts shall be of galvanized steel or equivalent corrosion resistant material A single air duct may not be substituted when required for upper and lower air openings Horizontal upper combustion air ducts shall not slope downward toward the air inlet Louvers and Grills Openings for air supply ducts must provide free unobstructed air movement Louver and grill openings must be sized to ensure that the FREE OPEN AREA is never less than the area of the air duct Air Requirements for Canadian Installations Canadian Codes allow for the use of a single air supply source Canadian cus
15. e latest edition of CAN CGA B149 1 B149 2 installation codes and or any local codes These shall be carefully followed in all cases Authorities having jurisdiction shall be consulted before installations are made All electrical connections shall be in accordance with the latest edition of the Canadian Electrical Code CSA C22 1 Part 1 U S Installations In addition to the installation instructions found in this manual the heater shall be installed in accordance with the latest edition of the National Fuel Code ANSI Z223 1 NFPA 54 and or any local codes These shall be carefully followed in all cases Authorities having jurisdiction shall be consulted before installations are made Important All supply equipment installation Approvals permits inspections etc are the responsibility of the owner of this water heater Consult your local authorities for regulations specific to your area Relief Valves T amp P All heaters must be installed with a proper temperature and pressure relief valve These valves must be certified as meeting the requirements for Relief Valves and Automatic Gas Shut Off Devices for Hot Water Supply Systems ANSI Z2122 in the United States When in Canada the Standard for Temperature Pressure Temperature and Pressure Relief and Vacuum Relief CAN 4 4 is required Backflow Prevention Certain jurisdictions may require the installation of a backflow device e g check valve in the water supply line S
16. equivalent feet Important W hen using long runs of vent or when passing through cold or unheated areas condensation of the gases can develop Provision must be made for a condensate trap or drainage 2 Measure vent piping and cut to required lengths Pipes shall be cut at right angles and deburred to ensure a good fit Dry fit all vent pipes elbows and fittings before joining any parts with solvent cement Use only the recommended adhesive for ABS PVC or CPVC depending on your installation PARTS MUST FIT WITHOUT STRESS OR BENDING OF ANY SECTION and each connection must overlap a minimum of Y 15 mm Caution solvent cements for plastic piping are flammable Use only in well ventilated areas and keep away from all sources of ignition 4 Support the vent piping every 4 feet 1 2 meters to prevent stress or sagging DO NOT USE AN ELBOW AS A SUPPORT POINT Elbows are not designed to carry the weight of the venting system Use appropriate support straps and vibration isolators on a straight section IMPROPERLY SUPPORTED VENTING CAN POSE A SAFETY HAZARD For long runs of venting or when passing through cold or unheated areas condensation can develop Slope vent pipe to drain through termination outlet If vertical runs are used a condensate drain should be provided At the point where the vent pipe exits the building drill a 2 65 mm hole for 2 50 mm venting or a 3 95 mm hole for 3 75 mm venting See Figure 5
17. esult in serious bodily harm or death from asphyxiation MAKE SURE THE FLOW OF COMBUSTION AND VENTILATION AIR IS NOT RESTRICTED If this water heater has been exposed to flooding freezing fire or any unusual condition do not put it into operation until it has been inspected and approved by a qualified professional THESE CONDITIONS CAN RESULT IN UNSEEN INTERNAL DAMAGE and are not subject to warranty coverage Safety Warnings A gt There is a risk in using f uel burning appliances such as water heaters Areas that may not be suitable for water heater installation include those where flammable liquids gasoline solvents adhesives etc or engine driven equipment or vehicles are stored operated or repaired Due to the nature of air movement flammable vapors can be carried some distance from the point of storage The gas fired water heater pilot or main burner flame can ignite these vapors causing a flashback fire or explosion which may result in serious personal injury or death as well as severe property damage If installation in a garage or shed is the only option it is recommended that the water heater be elevated a minimum of 18 45 cm above the floor level This may reduce BUT NOT ELIMINATE the risk of flammable vapors being ignited Such installations must be protected from impact or physical damage caused from moving equipment or vehicles CHECK LOCAL CODES Exposure to air borne chemicals can cause severe corrosi
18. g lint sawdust process smoke etc nspection and cleaning may need to be done more frequently Relief Valve Check Inspect the relief valve annually to ensure proper operation This involves opening the valve to check that it is flowing freely and that there are no blockages Provide a bucket or drainage for the expelled water Lift the lever and let it snap shut The 15 water should stop instantly Warning WATER WILL BE HOT and water flow can be forceful If the valve does not function properly it must be replaced I n systems where the relief valve discharges periodically this may be due to thermal expansion or to a thermostat that is operating at too high a temperature na closed water system an expansion tank may be required Contact your local plumbing inspector For a malfunctioning thermostat contact your gas supplier Burner Maintenance Annually inspect the burner and combustion chamber area to ensure that no debris have fallen on the burner and that no foreign material has found its way into the combustion chamber Observe the flame for proper operation Sheet metal burners have no adjustment so contact your gas supplier if there is a problem ALWAYS KEEP THE AREA AROUND THE WATER HEATER CLEAR OF COMBUSTIBLE MATERIALS NEVER RESTRICT THE FLOW OF AIR TO THE WATER HEATER 16 VIII COMBINATION POTABLE WATER HEATING AND SPACE HEATING COMBO HEATING This section serves as a guide for the installation a
19. heater and piping system with water When an uninterrupted stream of water flows from the faucet the system is full Close faucet Check for leaks and repair as necessary 7 Connect a hose to the drain valve and connect to drain Open drain and let water run until clear to flush out any foreign matter that may have entered the system Once flushed close the drain valve and disconnect hose V Gas Service Gas piping and fitting shall be installed as shown in Figure 9 Check that a properly sized gas meter and regulator are available to service the water heater If other appliances are using the same meter and regulator ensure that the capacity of the meter and regulator matches that of the combined input of all appliances connected to it The gas control supplied with this water heater is designed for a maximum inlet pressure of 0 5 p s i 14 water column WARNING Exposure to a higher gas supply pressure may cause damage to the control resulting in explosion or fire Consult your local gas supplier and gas authorities DO NOT PUT INTO SERVICE IF OVER PRESSURIZATION HAS OCCURRED Use gas piping of adequate sizing to ensure full gas input All piping must comply with all local codes In the absence of local codes piping must comply with the rules stated by the applicable National Fuel Gas Codes Final connection to the water heater is made using 1 2 N P T pipe A manual gas shut off valve shall be installed in the gas line
20. ired e refill system with water and restore water heater to operation WARNINGA Operating a water heater without an actively working anode rod will void the warranty Hot Water Odour On occasion and depending on your location hot water may develop a strong odour This can be especially problematic in regions where the water contains some sulphur which results in hot water having a rotten egg smell If this occurs drain the system completely flush thoroughly and refill If the problem persists the anode rod may need to be changed from magnesium to one made of aluminum In certain cases chlorination and flushing of the water heater may be required Contact you dealer or water supplier Not Enough or No Hot Water Check that the water heater is operational Check that the thermostat is set high enough 14 Check that you have not just run out of hot water due to heavy demand If this is a routine problem it may indicate an under sized water heater Have your gas company check input rate and water heater operation The E C O may have tripped open LED indicator on constantly See E C O below Energy Cut off Control E C O This water heater is equipped with a control which has a built in E C O Energy Cut off The E C O will shut the gas off should the outlet water temperature exceed 2009 F If the E C O has tripped the entire gas control must be replaced For gas control replacement co
21. loop to the water heater 1 Install shut off valves and unions so that the water heater can be isolated from the heating module should servicing of the water heater become necessary 2 A drain valve must be installed at the lowest point of the heating loop so that water can be drained from the heating module without affecting the water heater 17 3 Install air bleed valves at the highest points to purge air from the system 18 19 20
22. n electric combination thermostat gas valve control and an ignition device that lights the burner DO NOT ATTEMPT TO LIGHT THIS WATER HEATER MANUALLY The control contains internal self diagnostic features and an external LED monitor light Figure 11 During operation a flashing LED indicates a burner or ignitor failure putting the system into a safety lockout condition This control uses three attempts at ignition before locking out To reset a system in lockout disconnect electrical power wait ten seconds and re energize If the system fails to re start see trouble shooting section A constant on LED indicates an unserviceable fault within the control and cannot be reset The complete control must be replaced 12 Initial Start Up IF W ith all gas valves closed and the power cord NOT plugged into an electrical outlet make sure that the water heater is filled with water and that the cold water supply valve is open Open the manual shut off valve in the gas supply line and turn the water heater s gas control switch to the ON position W ait for five minutes Smell around the water heater for any possible gas leak Check close to the floor and around the burner door area as some gases especially propane are heavier than air YOU SMELL GAS Do not try to operate the water heater or any other appliance Do not operate any electrical switch do not use a telephone Immediately call your gas supplier from
23. nd use of Combo heating systems utilizing a domestic water heater which has been specifically approved for such use It is written for those knowledgeable in the required trades and professionals involved in the design and installation of Combo Heating Systems It is the responsibility of the installer designer to follow all applicable codes to ensure the effectiveness and safety of the installation Caution A READ BEFORE PROCEEDING The following reguirements must be met for the installation of Combo Heating Systems 1 All components used for the distribution of water in the heating loop must be suitable for potable water These include all piping fittings solder and fluxes pumps for circulation of water valves etc 2 The water heater must not be connected to a hydronic heating system that has been used previously 3 No boiler treatment chemicals of any kind shall be introduced into the system 4 The Combo System components must be selected and sized to meet and maintain the total calculated demands for both domestic service hot water and space heating reguirement The sizing and installation must be performed in accordance with good engineering practice such as ASHRAE Handbooks HRAI Hydronics Institute Manuals CGA B149 NFPA 54 ANSI Z223 1 CSA F280 National Provincial Building Codes CSA C22 1 ANSI NFPA 70 CSA B51 and or codes having jurisdiction 5 The air handler fan coil and or the circulating pump
24. ntact your local gas utility or a qualified service Water Heater Makes Noise e During start up or under heavy use condensation can drip on the burner causing a sizzling noise as the water is evaporated This is normal and will stop once temperatures rise e Sediment sand or scale can accumulate resulting in rumbling noises Water heaters need to be flushed regularly to minimize buildup Severe accumulations more than 2 50 mm can cause premature failure of the water heater and will void the warranty Vent piping can vibrate if it is not supported properly Ensure hangers and vibration isolators are properly installed Discolored Water Water rich in iron or other minerals can produce red or brown staining Heating water generally worsens this situation e Black water can be an indication of organic contaminates in the water supply This can be problematic in areas where the water is obtained from surface or contaminated sources Organic particles can develop bacterial growth causing potential health hazards Contact your water supplier for proper filtration or water conditioning equipment For bacterial problems contact your local health authority See also Hot W ater Odor A sudden appearance of rusty water can indicate the anode rod has been depleted The remaining steel core wire may be corroding releasing iron particles into the water nspect and replace as necessary Extended Non Use technician
25. om gt Location of the outside vent terminal See Venting p 7 gt Routing and support of the vent piping Figure 5 page 8 gt How and where to obtain combustion and ventilation air supply See Air Requirements page 4 gt Position of water supply and placement of water piping for hot and cold water See Water Connections page 10 gt Access for gas supply electrical power floor drain and service See Gas Service pages 10 and 11 NOTICE A REVIEW SAFETY WARNINGS FOUND IN THE FRONT OF THIS MANUAL BEFORE PROCEEDING Location and Clearances Locate the water heater such that all controls are easily accessible We recommend that 24 0 6 m in front of the heater and 34 0 9 m above be maintained for serviceability Ensure that the water heater is level See Figure 1 Page 1 and Figure 2 page 4 This heater is designed to safely operate with the following minimum clearances to combustibles Front 2 50 mm Sides and Rear 1 25 mm Top 12 305 mm Plastic Vent Piping 0 0 0 mm Locate near a floor drain and in an area where leakage of the tank or water piping will not result in damaging adjacent areas or lower floors of the structure Where such a location is not available a suitable drain pan must be installed under this water heater This pan shall be 14 40 mm deep and a diameter that is a minimum of 2 50 mm greater than the diameter of the water heater A suitable pipe properly connected
26. on to the water heater and damage to the venting parts Air containing vapors from cleaning solvents pool chemicals refrigerator or air conditioning refrigerants laundry detergents or bleaches waxes spray can propellants dry Cleaning photo processing liquids calcium and sodium chloride softener salt or other process chemicals are typical of compounds which are potentially corrosive Products of this type should not be stored near the heater Air containing these chemicals should not be used as supply to the heater If necessary uncontaminated air shall be obtained from remote or outside sources HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER SYSTEM THIS CAN BE PROBLEMATIC IN SYSTEMS WITH LONG STANDBY PERIODS HYDROGEN GAS IS EXTREMELY FLAMMABLE To reduce the risk of injury under these conditions it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system If hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME THAT IT IS OPEN INSTALLATION INSTRUCTIONS NOTICE A Before installing this water heater consideration and planning must be given to the following details gt Heater location The vent blower can create air noise Do not install near sleeping area in a bedroom or bathro
27. tice A These instructions have been written for the proper installation safe operation and maintenance of this water heater It is your responsibility to ensure that your water heater is properly installed and cared for FAILURE TO FOLLOW THE INSTRUCTIONS IN THIS MANUAL MAY RESULT IN SERIOUS BODILY INJURY AND OR PROPERTY DAMAGE THOROUGHLY READ ALL INSTRUCTIONS bef ore you attempt to install or operate this heater Installation and service require trade knowledge in the area of plumbing electricity venting air supply and gas supply If you lack these skills or do not understand these instructions enlist the help of a qualified professional GSW Water Heating Company the manufacturer of this water heater cannot be held liable for those damages caused by improper installation sizing or failure to comply with these instructions Approvals This water heater has been certified for operation using natural gas or propane gas fuel by the Canadian Gas Association CGA and design certified by the American Gas Association Laboratories AGA through nternational Approval Services nc This heater is approved to provide potable hot water or when combined with a suit ably sized fan coil baseboard heater etc to provide both space heating and domestic hot water Installation Code Requirements Canadian Installations I n addition to the installation instructions found in this manual the heater shall be installed in accordance with th
28. tomers and authorities having jurisdiction may use the sizing listed in Table 1 Check Local Codes When using a single air supply the duct shall terminate within 1 foot 30 cm above and within 2 feet 60 cm horizontally from the burner level of the appliance having the largest input as shown in Figure 3 b c and d An opening shall be located neither more than 18 inches 450 CONFINED mm nor less than 6 inches 150 mm above floor level See NS Figure 3 b c and d y Two permanent openings shall be provided connecting the x confined space e g closet small room with the unconfined NT LOCATED IN lt space Each opening shall have a free area of one square inch per ROM OU TROORSF 1000 BTU hour input 5 5 cm kW of all appliances in the confined space The top opening shall commence within 12 30 cm of the top of space and the bottom opening shall commence within 12 30 cm of the bottom of the enclosure See Figure 3 a All exterior vent openings are to be clear of snow levels Table 1 Combined Input of All Required Acceptable Round Appliances in Confined Free Area Duct Size Diameter eT ee 25 000 8 4 50 000 15 12 GRADE A SSMBoSHnsen 75 000 23 11 70 5 125 ERAS VENTILATION TI TN e 100 000 30 14 90 4 100 5 125 18 A 125 000 37 18 120 5 125 6 150 24 150 000 45 22 140 5 125 6
29. tural gas a constant steady soft blue flame should be visible coming from the burner head e for water heaters having a sheet metal burner and burning propane gas the flame will be a constant steady blue with a brighter blue being visible right at the burner head The very ends of the flame may be tipped with yellow This is more noticeable on higher input units e Noisy hard blue flames flames lifting from the burner luminous or yellow stringy flames indicate an incorrect setup Check that the unit is using the correct gas This information 13 is on the rating plate and the label on the side of the gas valve control Poor flames can also be caused by incorrect gas pressures or burner orifice size inadequate or contaminated air arestriction in the venting system or dirt entering the e For units with cast iron burners the flame presentation should be the same as sheet metal burners Adjustment is possible on cast iron burners by changing the air shutter position on the burner inlet If the flame needs adjusting loosen the two screws and move the shutter See Figure 12 If it is too far open the flame will lift or will be noisy if it is closed too far the flame will be luminous and yellow Once proper flame is obtained tighten the screws to secure the air shutter NOTE gt There is no adjustment on sheet metal burners gt Always return the burner doors to their original position VID GENERAL OPERATION AND MAIN
30. uch a device will require the use of a system expansion tank of adequate size to control the thermal expansion generated during the heating cycle Consult your water supplier or local plumbing authority mportant The supply water meter may have a built in check valve device Contact your local water authority Safety Warnings A Water Heaters are heat producing appliances To avoid damage or injury no materials shall be stored against the heater and provision shall be made to prevent unauthorized contact e g children FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE COMBUSTIBLE OR CORROSIVE VAPORS OR LIQUIDS IN THE VICINITY OF THIS HEATER OR ANY OTHER APPLIANCE Hot water produced by this appliance can cause severe burns due to scalding The hazard is increased for young children the aged or the disabled where water temperatures exceed 125 F 52 C Use anti scald valves in the hot water system to reduce the risk of scalding at points of use such as lavatories sinks and bathing facilities Such precautions must be followed when this heater is operated in combination with dishwashing or space heating applications gt As with all fuel burning equipment this heater requires an adequate supply of air for combustion and ventilation An insufficient air supply can result in poor combustion or the recirculation of the exhaust flue gases Such a condition can cause sooting or present a fire hazard which may r
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