State Water Heaters GPH-90N - Manuals

6 www.statewaterheaters.com Thank You for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service.Abbreviations Found In This Instruction Manual:• CSA - Canadian Standards Association• ANSI - American National Standards Institute• NFPA - Nati...

www.statewaterheaters.com 9 Capacity, Gas and Electrical Characteristics Model Approx. Capacity Input Gas Type Gas Supply Pressure Manifold Pressure Electrical Characteristics U.S. Gals. Litres BTU/hr Max. in. WC (kPa) Min. in. WC (kPa) in. WC (kPa) Volts/Hz Amperes GPH-90N 25 94.6 100,000 Nat. 14.0...

www.statewaterheaters.com 13 HANDLE INSTALLATION For ease of handling and carrying, plugs are provided in the side of the shroud that can be removed and pipe handles inserted (see Figure 4).• Remove plastic plugs from shroud side panels.• Screw a short length of 3/4” NPT pipe into the sides of the w...

14 www.statewaterheaters.com When installing the heater, consideration must be given to proper location. Location selected should be as close to the wall as practicable and as centralized with the water piping system as possible. FIGURE 5 Minimum clearances between the water heater and combustible c...

www.statewaterheaters.com 15 Screws Screws TopCasing (Front) FIGURE 7 Screws FIGURE 8 FIGURE 9 After the heater has been positioned and the earthquake straps have been installed, re-assemble the shroud in the reverse order.

18 www.statewaterheaters.com 6. L o u v e r s a n d G r i l l e s : I n c a l c u l a t i n g f r e e a r e a , consideration should be given to the blocking effect of louvers, grilles or screens protecting openings. Screens used should not be smaller than 1/4 in. (0.64cm) mesh. If the free area thr...

www.statewaterheaters.com 19 limited warranty. Thermal expansion can also cause intermittent temperature-pressure relief valve operation: water discharged from the valve due to excessive pressure build up. The temperature-pressure relief valve is not intended for the constant relief of thermal expan...

20 www.statewaterheaters.com The temperature-pressure relief valve must be installed directly into the fi tting of the water heater designed for the relief valve. Must terminate a maximum of 6 in. (15cm) above a fl oor drain or external to the building. In cold climates, it is recommended that the d...

www.statewaterheaters.com 21 GAS PIPING Make sure gas supplied is same type listed on model rating plate. The inlet gas pressure must not exceed 14 in. WC (3.5 kPa) for natural and propane gas (L.P.). The minimum inlet gas pressure shown on rating plate is that which will permit fi ring at rated inp...

22 www.statewaterheaters.com a sediment trap) must be incorporated in the piping. The drip leg must be readily accessible. Install in accordance with the “Gas Piping” section. Refer to the current edition of the National Fuel Gas Code (ANSI Z223.1/NFPA 54). GAS LINE PURGING Air may be present in the...

24 www.statewaterheaters.com Vent piping must slope up from heater to termination a minimum of 1/8 in. (0.3cm) rise per 4 ft. (1.2m) of vent piping TERMINATION ELBOW RODENT SCREEN (INSTALL INTO ELBOW) GROUND LEVEL OR MAXIMUM SNOW LINE* STRAP 6 in. (15cm) MIN. 90° ELBOW Example for calculating equiva...

www.statewaterheaters.com 25 CONDENSATE This water heater is a condensing unit and requires a drain to be located in close proximity to allow the condensate to drain safely. The condensate drains from the unit at the exhaust tee located at the bottom of the unit (see Figure 22). Condensate from this...

26 www.statewaterheaters.com SEQUENCE OF INSTALLATIONS Cut a length of PVC pipe about 3.5 in. (9cm) longer than the wall thickness at the opening. Glue the vent terminal to this section of pipe. Slide the wall plate over the pipe to stop against the vent terminal. Place a bead of caulking (not suppl...

28 www.statewaterheaters.com FIGURE 28 A V E N T U S E D I N A S P E C I A L VENTING SYSTEM WITH POSITIVE VENT PRESSURE AND PASSING T H R O U G H A R O O F S H A L L EXTEND AT LEAST 450mm (18 in.) ABOVE THE HIGHEST POINT WHERE IT PASSES THROUGH THE ROOF SURFACE AND ANY OTHER OBSTRUCTION WITHIN A HOR...

www.statewaterheaters.com 33 OPERATING INSTRUCTIONS Changing the Standby StatusWhen the Standby Button is pressed, the Status changes to normal operation and all the LEDs on the display will light up for a period of 1 second to verify operation. The button can toggle the status between Normal operat...

www.statewaterheaters.com 35 WIRING DIAGRAM Obey local codes and electric utility requirements when y o u install or service the w ater heater . This appliance must be electrically grounded in accordance with local codes or , in the absence of local codes, with the National Code ANSI/NFP A No 70 (cu...

36 www.statewaterheaters.com LIGHTING INSTRUCTIONS 1. Set the thermostat to the lowest setting.2. Set the ON/OFF switch on the control panel to the “OFF” position. 3. Turn off all electrical power to the appliance if service is to be per formed. TO TURN OFF GAS TO APPLIANCE 1. STOP! Read the safety ...

www.statewaterheaters.com 37 HEAT CYCLE DEFINITIONS STATE DESCRIPTION Pre-purge If the heat engine initial call-for-heat is successful (all checks are passed), the combustion fan is energized. The fan is started at a high speed for several seconds and the system verifi es the fan speed. Input signal...

38 www.statewaterheaters.com TEMPERATURE REGULATION FIGURE 35 It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that the water temperatures be set for the lowest temperature which satisfi es your hot water needs. This will...

40 www.statewaterheaters.com Water Circulation PumpA circulation pump is integrated into the heat engine for the Hybrid application. The pump serves to push water through the heat engine at a rate that supports optimum recovery time and maximum heat output.The control provides 120Vac, 60Hz line powe...

www.statewaterheaters.com 41 Line Voltage MonitorT h e c o n t r o l m o n i t o r s t h e l i n e v o l t a g e p r o v i d e d t o the system. If the line voltage is too low, the system components may not operate properly. For diagnostic purposes, the display panel should indicate that the cause w...

42 www.statewaterheaters.com CONSTANT OUTPUT TEMPERATURE CONTROL While the temperature regulation in the previous section describes the features of temperature monitoring and regulation, your water heater goes beyond the on/off control implied there and implements a gas, air and water fl ow modulati...

www.statewaterheaters.com 43 HOUSEKEEPING Vacuum around base of water heater for dust, dirt, and lint on a regular basis. VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the venting system. You should look for: Obstructions which could cause improper venting. The...

44 www.statewaterheaters.com ANODE ROD REPLACEMENT To replace the anode: Turn off gas supply to the water heater.Shut off the water supply and open a nearby hot-water faucet to depressurize the water tank.Drain approximately 5 gallons (20 litres) of water from tank (Refer to “DRAINING THE TANK” for ...

www.statewaterheaters.com 45 Remove the fi lter:• Disconnect the electrical power to the water heater.• Close the shutoff valves on both the hot-water and cold-water lines. • Unlock the door by rotating the side lock counter- clockwise with a wide, slot screwdriver. • Pop the top and bottom door pin...

www.statewaterheaters.com 51 These guidelines should be utilized by a qualifi ed service agent. Problem Possible Cause(s) What to do NOT ENOUGH HOT WATER STANDBY button turned off. Press switch to turn heater on. No power at outlet. Repair service to outlet. Error Code being displayed Refer to “FAUL...

www.statewaterheaters.com 57 LIMITED RESIDENTIAL GAS WARRANTY THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY If the glass lined tank in this water heater shall prove upon examination by (the warrantor) to have leaked during the warranty period in normal residential use, due to natural corros...