TANKLESS PRODUCT GUIDE

Transcription

1 TANKLESS PRODUCT GUIDE

2 SAVE ENERGY. Energy-efficient, plentiful, and endless supply of hot water. SAVE SPACE. Compact size and wall-mounted to free up valuable floor space. SAVE MONEY. The smart choice that will save you a substantial amount of energy. State has delivered innovative hot water solutions for more than 7 years. State s selection of residential and commercial tanktype, tankless, hybrid water heaters, boilers and storage tanks is unmatched for quality and diversity. Anywhere hot water is needed, State provides an energy-efficient solution with long-lasting value for years after installation. State stands behind its products and customers with world-class service, combining cutting-edge technology with committed people who take pride in being the very best. State is headquartered in Ashland City, Tennessee, home of the world s largest water heater factory. 1

3 TANKLESS ADVANTAGE HOW IT WORKS The Process: A hot water tap is opened. The opened tap allows water to flow through the water heater. An internal water flow sensor detects this flow. Upon flow detection, the flow sensor sends the activation signal to the computer board. The computer automatically ignites the burner. As water flows through the heat exchanger, it absorbs heat from the burner. By the time the water exits the heater, it has reached the designated set temperature. When the hot water tap is closed, the water heater automatically turns off. ENDLESS HOT WATER Heating water only as it s being used means you will never run out of hot water again. After the few seconds it takes for the water to reach the designated set temperature, our water heaters will continually provide a steady flow of hot water for as long as your application needs it. *State tankless water heaters provide endless hot water when sized appropriately for your home s needs. ENERGY CONSERVATION Provides you with continuous hot water in one of the most energyefficient ways possible. Conventional tank-type water heaters will heat and store a set volume of water, regardless of whether someone is using that hot water or not. Because our tankless water heaters only activate when hot water is being used, no standby energy losses are incurred, providing efficient heating while conserving energy. COMPACT SIZE On top of all this, a State tankless water heater takes up much less space than your conventional tanktype water heater or boiler. State s wall-mount design offers flexible installations freeing up valuable storage space. 2

4 SAFETY At State, we place the safety and reliability of our products above all else. By incorporating technologically advanced safety features into every model, we provide the assurance and peace of mind that can only come from an State quality product. Air-Fuel Ratio (AFR) Sensor State s unique AFR sensor monitors and maintains proper combustion at all times. Together with the onboard computer, this system will adjust the fan motor speed to ensure that air and fuel have a proper mixture ratio, minimizing emissions and maximizing efficiency. Additional Safety Features Freeze Protection: Every heater in State s tankless lineup has an internal freeze protection system, which is rated to protect the heaters when installed in sub-freezing conditions. This system works to keep water temperatures within the heat exchanger from falling below a certain level, preventing freeze damage. HEAT EXCHANGER IGNITER AFR FLAME SENSOR BURNER Hi-Limit Switch: Ensures that water temperatures do not exceed safe levels. Before the water temperature can even reach these unsafe levels, the hi-limit switch activates by disengaging the gas valves, effectively shutting down the water heater. PVC Venting: Indoor condensing models have a thermistor and hi-limit switch that monitor the exhaust temperature. If the exhaust temperature nears an unsafe limit, these features regulate combustion and can shut the heater down to protect the integrity of the PVC vent material. Overheat Cutoff Fuse: Ensures that there are no breaches in the heat exchanger drum. In cases where enough physical damage might have been done to the water heater to lead to a breach in the heat exchanger drum, the overheat cutoff fuse reacts by shutting down the water heater if the surface of the heat exchanger retains too much heat. 3

5 DURABILITY HEAT EXCHANGER WITH COMMERCIAL-GRADE COPPER Only State incorporates true commercial-grade heat exchangers in our tankless heaters (51, 51C, 51U, 54, 54P, CT-199 and 91 non-asme models). All aspects of the heat exchanger are designed to add the durability and reliability that is vital to any successful commercial organization or business. Commercial-Grade Copper Alloy Our commercial-grade copper is a heat-resistant copper alloy, with additive elements that make it much stronger and harder than the standard C122 copper used in most other heat exchangers. Our commercial-grade copper has 8 times the tensile strength of regular copper. Even at high temperatures, our commercial-grade copper maintains a fine grain and high strength. Commercial-grade copper provides resistance to the damaging effects of erosion that can cause heat exchangers to leak. Commercial-Grade Copper Tubing Drum Thickness During every ignition cycle, thermal expansion causes all heat exchangers to undergo heat stress. After the thousands of ON/OFF cycles typically seen in a commercial application, this heat stress can prove damaging. This is why the heat exchangers in our commercial and light commercial products utilize drums that are 25% thicker, ensuring the longevity of our products. A thicker drum creates less strain on the heat exchanger. A thinner drum strains more under heat stress A thicker drum creates less strain on the heat exchanger water water drum coil drum coil drum water drum coil 25% Thicker drum water drum coil 4

6 WATER VALVES Making true commercial-grade water heaters involves more than just redesigning our heat exchangers every internal component has to measure up to State s commercial standards. Just like our advanced heat exchangers, the longevity and functionality of components such as our water valves and flow sensors are also of great importance. Our commercial-grade water heaters (51 and 54), as well as our commercial water heaters (CT-199 and 91) feature a bypass and flow adjustment valve, which not only provide the optimal control and precision essential for commercial usage, but also offer the durability needed to handle tough, high-volume conditions. Stepper Motor Water Valves - 91 Models Bypass Valve - 51/U/C, CT-199 and 54 Models Flow Adjustment - 51/U/C, CT-199 and 54 Models 5

7 SECONDARY HEAT EXCHANGER 316L STAINLESS STEEL (CONDENSING MODELS ONLY) The secondary condensing heat exchanger is made of high-quality 316L stainless steel. This is where the rest of the heat transfer occurs. Due to the lower temperature acidic condensation occurs, and stainless steel is required in order to avoid corrosion. For condensing heat exchangers, it is more suitable to use 316L stainless steel because of the extreme environment (heat, acidic condensation, chloride) that the material is subjected to. Secondary HX-Stainless Steel 316L PRIMARY HEAT EXCHANGER: COPPER VS. STAINLESS STEEL Bypass Valve Drum Coil Primary HX Commerical-Grade Copper Heat transfers 25 times more readily through copper than stainless steel. Consequently, for the same amount of heat transfer, stainless steel heat exchangers need to be larger than copper heat exchangers, leading to a larger pressure loss. Flow Adjustment Valve At higher temperatures, it is the nature of stainless steel to become prone to a number of problems not usually experienced at room temperature. It is vulnerable to pitting corrosion and stress corrosion cracking (SCC). Hot Water Outlet Flow Sensor Cold Water Inlet Stainless steel is NOT better for durability because it is harder. Hardness causes the material to become brittle. Stainless steel will crack after numerous cycles of thermal expansion/contraction, especially with chloride in the water. Copper heat exchangers are less brittle and better suited for expansion/contraction without cracking. In a dual heat exchanger design, corrosion is not a big concern in the non-condensing primary heat exchanger because no condensation forms on the exterior of the pipes. Stainless steel is unnecessary for this stage. Note: 14, 24, and 34 condensing line units use C122 copper and do not have a bypass valve * Diagram represents 54 6

8 WATER FLOW Condensation can build up over time in any heat exchanger, causing damage and premature leaks. State's commercial models (91 series) include condensation reduction features that safeguard against these types of damaging effects. Better Water Pathway Design By redesigning and redirecting the flow of water, the temperature of the heat exchanger drum and finned coils stay elevated above dew point, making it much more difficult for condensation to build. Fin Pitch By widening the pitch of the heat exchanger fins, not only do we improve durability by reducing occurrences of blockage, we also maintain higher temperatures on the upper finned coils. Keeping these coils at elevated temperatures reduces the likelihood of condensation buildup. FIN Finned Coil (9%-95%of total heat absorbed) Drum Coil (5%-1% of total heat absorbed) No Condensation Buildup on Drum Coil Burner M Bypass Valve (91) Flow Sensor Hot Water Outlet (1% heat absorbed) Cold Water Inlet 7

9 BASIC SIZING GUIDELINES The flow rate capacity of tankless water heaters depends on the temperature difference between the desired output and incoming water temperature. The flow rate comparison chart and table shown here summarize the flow rate charts found in the specifications of each model. State water heaters are sized according to the peak flow rate requirements, worst-case temperature-rise scenarios, and types of applications. Once these factors have been determined, refer to either the flow rate comparison here or the flow rate charts found in each model s specifications. Select the appropriate water heater as well as the amount of water heaters required. Application designers/engineers can decide whether to size for full flow, expected flow, or utilize probability models such as the modified Hunter Curve. For large scale applications such as hotels, apartment complexes and large restaurants, Hunter Curves are commonly used to estimate the peak flow rate demand when given the total amount of fixture units within an application. It is up to the application designer/ engineer to determine the amount of fixture units within any given application. MATCH THE UNIT TO YOUR NEEDS Non-Condensing Units Warmer Climates 7 F Incoming Groundwater Temperature Cooler Climates 5 F Incoming Groundwater Temperature Capacity - Number of Shower Heads (Assuming the set point temperature is 12 F ) 11/ U/C 2.5 Showers 1.5 Showers 31/U/C 3.5 Showers 2.5 Showers 51/U/C 3.5 Showers 2.5 Showers Condensing Units Showers 1.5 Showers Showers 2.5 Showers 34 4 Showers 2.5 Showers 54P 4.5 Showers 3 Showers Commercial Units 91 7 Showers 5 Showers CT Showers 3 Showers 8

10 FLOW RATE GUIDE Temperature Rise vs. Gallons per Minute Temp Rise 11/U/C 31/U/C 51/U/C P CT Flow rate is determined by temperature rise. To determine your temperature rise, subtract the incoming water temperature from the set output temperature. All units are factory set to 12 F or 122 F but can be changed. EXAMPLE OF HUNTER CURVES FOR SIZING LARGE APPLICATIONS COMPARISON OF FLOW RATES VS. TEMPERATURE RISE Flow Rate (gpm) Gallons Per Minute Fixture Units Temperature Rise ( F) Restaurants Hospitals, Nursing Homes, Dormitories, Hotels & Motels Apartments & Houses Office Buildings & Schools 91 SERIES 51/51U/51C 54P and CT-199 Series 34 SERIES 24 SERIES 31/31U/31C 14 SERIES 11/11U/11C 9

11 SIMPLE TANKLESS SIZING TANKLESS MODELS GROUND WATER TEMPERATURE FACTOR The temperature of incoming ground water (cold water inlet temperature) varies greatly throughout the U.S. and also fluctuates with the changing of the seasons. The temperature of water as it enters the water heater will determine the amount of temperature rise required to achieve the desired hot water outlet temperature (12 F is recommended). The best way to measure incoming ground water temperature is to use a thermometer to measure cold water temperature during the coldest season of the year. To simplify the process, use this map to determine whether your installation location is in the Southern Zone, Central Zone or Northern Zone. PEAK HOT WATER DEMAND The next step is to determine how many gallons per minute of hot water will be required during the busiest usage period (peak demand). Consider all appliances and fixtures that use hot water, including lavatory faucets, kitchen faucets, washing machines, dishwashers, showers and bathtubs. Be sure to determine how many appliances and fixtures will be used at the same time (peak demand). AVERAGE GROUND WATER TEMPERATURE SOUTHERN ZONE Average Ground Water Temperature: 62 F to 77 F CENTRAL ZONE Average Ground Water Temperature: 52 F to 61 F NORTHERN ZONE Average Ground Water Temperature: 37 F to 51 F Remember, these are general recommendations. Your State Water Heater Specialist can review your family s needs in even greater detail to make sure the model you choose will always provide enough hot water to meet the demand. 1

12 11 SERIES The 11 Series is great for apartments, one bath homes in cold climates, condos and summer cabins. A remote control is included as a standard feature. NON-CONDENSING 11 Specifications Gas Consumption Input Inlet Gas Pressure** Model Number* Type Minimum UEF Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) (BTU/H) GTS-11-NI Natural 19,5 14, GTS-11-NE Natural 19,5 14, Model Number* 11 Temperature Settings GTS-11-NE Maximum GPM Hot/Cold Connections Gas Connection Dipswitches 113 F 122 F (default) 131 F 14 F With remote (max. distance 15 from heater, non-polarized 2 gauge wiring.) 99 F to 167 F (16 options), 122 F Default Factory Setting GTS-11-NI Clearances (in.) Top Bottom Side Front Approx Shipping Weight (lbs) GTS-11-NI 6.6 3/4" NPT 3/4" NPT GTS-11-NE 6.6 3/4" NPT 3/4" NPT *For propane models, change N to P **For propane models, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. Electric 12 V 73 W /.61 A (Operation) 6 W /.5 A (Standby) 111 W /.93 A (Freeze-Protection) ANSI Z CSA 4.3

13 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Low NOx Emissions 4 Category III Vent Flow Rate up to 6.6 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 14, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 1-3/4" (45mm) 13-3/4" (35mm) 1" (254mm) 4" (11 mm) 1-3/4" (45mm) 4" (12mm) 2-1/4" (56mm) 21-3/8" (544mm) 2-1/4" (52mm) 2-1/4" (57mm) 1-7/8" (47mm) COLD 3-1/8" (79mm) HOT 5-1/4" (133mm) 12V 1-3/8" (36mm) GAS 4-7/8" (124mm) 1" (26mm) 2-1/4" (56 mm) COLD 3-7/8" (98mm) GAS 4-7/8" (123mm) 12V 4-7/8" (124mm) HOT 7-3/4" (196mm) 11: Flow Rate vs. Temperature Rise 11: Pressure Loss Flow rate (gpm) Pressure Loss (psi) Head (ft) Temperature rise ( F) Flow Rate (gpm) 12

14 31 SERIES The 31 features a max flow rate of 8. gpm, providing enough hot water for a home with up to three showers at the same time. A remote control is included as a standard feature. NON-CONDENSING 13 Specifications Model Number* 31 Temperature Settings Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Dipswitches 113 F 122 F (default) 131 F 14 F With remote (max. distance 15 from heater, non-polarized 2 gauge wiring.) 99 F to 167 F (16 options), 122 F Default Factory Setting Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-31-NI Natural 11, 19, GTS-31-NE Natural 11, 19, Model Number* GTS-31-NE Maximum GPM Hot/Cold Connections Gas Connection GTS-31-NI Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. Electric 12 V 88 W /.73 A (Operation) 6 W /.5 A (Standby) 111 W /.93 A (Freeze-Protection) ANSI Z CSA 4.3 UEF Approx Shipping Weight (lbs) GTS-31-NI 8 3/4" NPT 3/4 NPT GTS-31-NE 8 3/4" NPT 3/4 NPT

15 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Low NOx Emissions 4 Category III Vent Flow Rate up to 8. GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 19, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 13-3/4" (35mm) 1" (254mm) 4" (11 mm) 1-3/4" (45mm) 1-3/4" (45mm) 4-3/8" (113mm) 21-3/8" (544mm) 2-1/4" (52mm) 1-3/8" (36mm) 19-3/8" (493mm) 1-5/8" (43mm) 1-7/8" (47mm) COLD 3-1/4" (84mm) HOT 5-1/4" (133mm) 12V 1-3/8" (36mm) GAS 4-7/8" (124mm) 1" (26mm) COLD 2-7/8" (71mm) 12VAC 3-7/8" (99mm) GAS 5-1/4" (135mm) HOT 6-1/2" (164mm) 9-1/2" (241mm) Flow rate (gpm) 31: Flow Rate vs. Temperature Rise 31: Pressure Loss Pressure Loss (psi) Head (ft) Temperature rise ( F) Flow Rate (gpm) 14

16 51 SERIES The 51 series is well suited for residential/commercial applications such as small restaurants and beauty salons. Utilizing commercial grade copper alloy for the heat exchanger tubing, the 51 series is also suitable for heavier residential usages such as combination space heating and domestic recirculation systems. A remote control is included as a standard feature. NON-CONDENSING 15 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-51-NI Natural 11, 199, GTS-51-NE Natural 11, 199, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-51-NI 1 3/4" NPT 3/4 NPT GTS-51-NE 1 3/4" NPT 3/4 NPT *For propane models, change N to P **For propane models, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 51 Temperature Settings GTS-51-NE Dipswitches 14 F 113 F 122 F (default) 14 F GTS-51-NI With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 176 F (15 options), 122 F Default Factory Setting Electric 12 V 9 W /.75 A 6 W /.5 A 111 W /.93 A (Freeze-Protection) ANSI Z CSA 4.3

17 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Low NOx Emissions 4 Category III Vent Flow Rate up to 1. GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi). 4 psi or above recommended for max. flow Easy-Link up to 4 heaters Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 13-3/4" (35mm) 1" (254mm) 4" (11 mm) 1-3/4" (45mm) 1-3/4" (45mm) 4-3/8" (113mm) 21-3/8" (544mm) 2-1/4" (52mm) 1-3/8" (36mm) 19-3/8" (493mm) 1-5/8" (43mm) 1-7/8" (47mm) COLD 3-1/4" (84mm) HOT 5-1/4" (133mm) 12V 1-3/8" (36mm) GAS 4-7/8" (124mm) 1" (26mm) COLD 2-7/8" (71mm) 12VAC 3-7/8" (99mm) GAS 5-1/4" (135mm) HOT 6-1/2" (164mm) 9-1/2" (241mm) 51: Flow Rate vs. vs. Temperature Rise Rise 51: Pressure Loss Flow Flow Rate rate (gpm) (gpm) Temperature rise ( F) Set temperature: 122 F or lower Set temperature: 131 F or higher Pressure Loss (psi) Flow Rate (gpm) Set temperature: 122 F or lower Set temperature: 131 F or higher Head (ft) 16

18 11C SERIES The 11C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. Great for apartments, one bath homes in cold climates, condos and summer cabins. NON-CONDENSING 17 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-11C-NI Natural 15, 14, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-11C-NI 6.6 3/4" NPT 3/4 NPT *Indoor models only. Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 11C Temperature Settings GTS-11C-NI Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F (9 options), 12 F Default Factory Setting Electric 12 V 53 W /.58 A (Operation) 2 W /.6 A (Standby) 99 W /.83 A (Freeze-Protection) ANSI Z CSA 4.3

19 Specifications Installations are simple and flexible with contractorpreferred concentric venting Long venting runs up to 43 feet and operates in altitudes up to 1,1 feet Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 6.6 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Meets Ultra-Low NOx requirements Dimensions Top view 5-7/16 (137.7 mm) Top view 5-7/16 (137.7 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 14, btu/h, 15 psi) 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 13-3/4 (35 mm) 13-3/4 (35 mm) 1-1/2 (266.5 mm) 1-1/2 (266.5 mm) 5-7/16 (137.7 mm) 5-7/16 (137.7 mm) 1. (25.5 mm) 1. (25.5 mm) 2-1/2 (52 mm) 2-1/2 (52 mm) 19-1/2 (495.7 mm) 19-1/2 (495.7 mm) Front view Front view Side view Side view Flow rate (gpm) /8 (162.3 mm) Cold /8 (42. mm) C: Flow Rate vs. Temperature Rise 11C: Pressure Loss. 4-1/4 (17.8 mm) 6-3/8 (162.3 mm) 4-1/4 (17.8 mm) 5-11/16 (145 mm) 7-9/16 (192.3 mm) Cold 1-5/8 (42.12 mm) VAC 2-1/4 (57 mm) 12 VAC 2-1/4 (57 mm) Bottom viewbottom view /16 (145 mm) 7-9/16 (192.3 mm) Hot 4-1/8 (15.4 mm) Hot 4-1/8 (15.4 Gas mm) 4-13/16 (122.1) Gas 4-13/16 (122.1) Temperature rise ( F) Pressure Loss (psi) Flow Rate (gpm) Head (ft) 18

20 31C SERIES The 31C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. It generates a max flow rate of 8. gpm, providing enough hot water to run three showers at the same time. NON-CONDENSING 19 Specifications Model Number* Type Gas Consumption Input Inlet Gas Pressure** Minimum Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) (BTU/H) GTS-31C-NI Natural 15, 19, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *Indoor models only. Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. ANSI Z CSA 4.3 UEF Approx Shipping Weight (lbs) GTS-31C-NI 8 3/4" NPT 3/4 NPT C Temperature Settings GTS-31C-NI Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F (9 options), 12 F Default Factory Setting Electric 12 V 71 W /.81 A (Operation) 2 W /.6 A (Standby) 99 W /.83 A (Freeze-Protection)

21 Specifications Installations are simple and flexible with contractorpreferred concentric venting Long venting runs up to 43 feet and operates in altitudes up to 1,1 feet Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 8. GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition. Meets Ultra-Low NOx requirements Dimensions Top view 5-7/16 (137.7 mm) Top view 5-7/16 (137.7 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 19, btu/h, 15 psi) 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 13-3/4 (35 mm) 13-3/4 (35 mm) 1-1/2 (266.5 mm) 1-1/2 (266.5 mm) 5-7/16 (137.7 mm) 5-7/16 (137.7 mm) 1. (25.5 mm) 1. (25.5 mm) 2-1/2 (52 mm) 2-1/2 (52 mm) 19-1/2 (495.7 mm) 19-1/2 (495.7 mm) Front view Front view Side view Side view Flow rate (gpm) /8 (162.3 mm) /4 (17.8 mm) 6-3/8 (162.3 mm) 4-1/4 (17.8 mm) 5-11/16 (145 mm) 7-9/16 (192.3 mm) 5-11/16 (145 mm) 31C: Flow Rate Rate vs. Temperature vs. Temperature Rise Rise 31C: Pressure Loss Loss 7-9/16 (192.3 mm) Cold /8 (42. mm) Cold 1-5/8 (42.12 mm) VAC 2-1/4 (57 mm) 12 VAC 42-1/4 (57 mm) 3. Hot 4-1/8 (15.4 mm) Hot 4-1/8 (15.4 Gas mm) 4-13/16 (122.1) Gas 4-13/16 (122.1) 2. Pressure Loss Loss (psi) (psi) Head Head (ft) (ft) Temperature rise rise ( F) ( F) Bottom viewbottom view Flow Rate (gpm)

22 51C SERIES The 51C Simplicity Series is fuel convertible out of the box and easily installs using contractor preferred concentric venting. It is well suited for residential/commercial applications such as small restaurants and beauty salons. Utilizing commercial grade copper alloy for the heat exchanger tubing, the 51C series is also suitable for heavier residential usages such as combination space heating and domestic recirculation systems. NON-CONDENSING 21 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-51C-NI Natural 15, 199, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-51C-NI 1 3/4" NPT 3/4 NPT *Indoor models only. Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 51C Temperature Settings GTS-51C-NI Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 16 F (13 options), 12 F Default Factory Setting Electric 12 V 72 W /.85 A (Operation) 3 W /.7 A (Standby) 1 W /.83 A (Freeze-Protection) ANSI Z CSA 4.3

23 Specifications Installations are simple and flexible with contractorpreferred concentric venting Long venting runs up to 43 feet and operates in altitudes up to 1,1 feet Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 1 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition. Meets Ultra-Low NOx requirements Dimensions Top view 5-7/16 (137.7 mm) Top view 5-7/16 (137.7 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi) 4 psi or above recommended for max. flow Easy-Link up to 4 heaters or connect up to 2 heaters with a Multi-Unit Controller Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 13-3/4 (35 mm) 13-3/4 (35 mm) 1-1/2 (266.5 mm) 1-1/2 (266.5 mm) 5-7/16 (137.7 mm) 5-7/16 (137.7 mm) 1. (25.5 mm) 1. (25.5 mm) 2-1/2 (52 mm) 2-1/2 (52 mm) 19-1/2 (495.7 mm) 19-1/2 (495.7 mm) Front view Front view Side view Side view Flow rate (gpm) /8 (162.3 mm) C: Flow Rate vs. Temperature Rise 51C: Pressure Loss Loss 4-1/4 (17.8 mm) 6-3/8 (162.3 mm) 4-1/4 (17.8 mm) 5-11/16 (145 mm) 7-9/16 (192.3 mm) Cold 1-5/8 (42. mm) Cold 1-5/8 (42.12 mm) VAC 2-1/4 (57 mm) 12 VAC 2-1/4 3 (57 mm) Bottom viewbottom view Set temperature: 125 F (52 C) or lower Temperature rise ( F) Set temperature: 13 F (55 C) or higher 5-11/16 (145 mm) 7-9/16 (192.3 mm) Hot 4-1/8 (15.4 mm) Hot 4-1/8 (15.4 Gas mm) 4-13/16 (122.1) Gas 4-13/16 (122.1) Pressure Pressure Loss Loss (psi) (psi) Flow Rate (gpm) Set temperature: 125 F (52 C) or lower Set temperature: 13 F (55 C) or higher Set Temperature 125 F (52 C) or higher, maximum flow rate is limited to 8. gpm Head (ft) 22

24 11U SERIES The 11U Series is great for apartments, one bath homes in cold climates, condos and summer cabins. Indoor models include an integrated temperature controller. A remote control is included as a standard for outdoor models. Complies with SCAQMD Rule and other air quality management districts with similar NOx Emission requirements of 14 ng/j or 2 PPM. NON-CONDENSING 23 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-11U-I Natural 15, 14, GTS-11U-E Natural 15, 14, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-11U-I 6.6 3/4" NPT 3/4 NPT GTS-11U-E 6.6 3/4" NPT 3/4 NPT *Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 11U Temperature Settings GTS-11U-I Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F (9 options), 12 F Default Factory Setting GTS-11U-E Electric 12 V 54 W /.64 A (Operation) 2 W /.6 A (Standby) 96 W /.82 A (Freeze-Protection) ANSI Z CSA 4.3

25 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions 4 Category III Vent Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 6.6 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Dimensions AT-KJr3U/K5U/D3U-IN AT-KJr3U/K5U/D3U-IN 13-3/4" (35 mm) 13-3/4" (35 mm) 1" (254 mm) 1" (254 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 14, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 4-3/8" (113mm) 3-5/8"(93 mm) 3-5/8"(93 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 1-3/8" (36 mm) 1-3/8" (36 mm) 2-1/4" (58 mm) 19-3/8" (493 mm) 1-7/8" (47 mm) 1-7/8" HOT (474-5/8" mm) (116 mm) HOT 4-5/8" (116 mm) 12 VAC 1-5/8" (4 mm) 12 VAC 1-5/8" COLD (4 mm) 1-5/8" (41 mm) COLD 1-5/8" (41 GAS mm) 5" (127 mm) GAS 5" (127 mm) 1" (26 mm) 12 VAC 3" (75 mm) GAS 5-1/4" (135 mm) COLD 6" (153 mm) HOT 6" (153 mm) 1" (256 mm) 13-1/8" (334 mm) Flow rate (gpm) Flow rate (gpm) HOT 5"(127mm) 11U: Flow Rate vs. Temperature Rise 11U: Pressure Loss 12VAC 1-7/8" (49 mm) GAS 4-1/4" (19 mm) Pressure Loss (psi) COLD 5" (127 mm) /8" (113 mm) 5-1/8" (13 mm) Head (ft). 2 Temperature rise ( F) Flow Rate (gpm)

26 31U SERIES The 31U features a max flow rate of 8. gpm providing enough hot water to run three showers at the same time. Indoor models include an integrated temperature controller. A remote control is included as a standard for outdoor models. Complies with SCAQMD Rule and other air quality management districts with similar NOx Emission requirements of 14 ng/j or 2 PPM. NON-CONDENSING 25 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-31U-I Natural 15, 19, GTS-31U-E Natural 15, 19, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-31U-I 8 3/4" NPT 3/4 NPT GTS-31U-E 8 3/4" NPT 3/4 NPT *Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 31U Temperature Settings GTS-31U-I Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F (9 options), 12 F Default Factory Setting GTS-31U-E Electric 12 V 79 W /.99 A (Operation) 2 W /.6 A (Standby) 96 W /.82 A (Freeze-Protection) ANSI Z CSA 4.3

27 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions 4 Category III Vent Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 8 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Dimensions AT-KJr3U/K5U/D3U-IN AT-KJr3U/K5U/D3U-IN 13-3/4" (35 mm) 13-3/4" (35 mm) 1" (254 mm) 1" (254 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 19, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 4-3/8" (113mm) 3-5/8"(93 mm) 3-5/8"(93 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 1-3/8" (36 mm) 1-3/8" (36 mm) 2-1/4" (58 mm) 19-3/8" (493 mm) 1-7/8" (47 mm) 1-7/8" HOT (474-5/8" mm) (116 mm) HOT 4-5/8" (116 mm) 12 VAC 1-5/8" (4 mm) 12 VAC 1-5/8" COLD (4 mm) 1-5/8" (41 mm) COLD 1-5/8" (41 GAS mm) 5" (127 mm) GAS 5" (127 mm) 1" (26 mm) 12 VAC 3" (75 mm) GAS 5-1/4" (135 mm) COLD 6" (153 mm) HOT 6" (153 mm) 1" (256 mm) 13-1/8" (334 mm) Flow rate (gpm) HOT 5"(127mm) 12VAC 1-7/8" (49 mm) GAS 4-1/4" (19 mm) COLD 5" (127 mm) /8" (13 mm) 31U: Flow Rate vs. Temperature Rise 31U: Pressure Loss Pressure Loss (psi) 4-3/8" (113 mm) Head (ft). 2 Temperature rise ( F) Flow Rate (gpm)

28 51U SERIES The 51U series is well suited for residential/commercial applications such as small restaurants and beauty salons. Indoor models include an integrated temperature controller. A remote control is included as a standard feature for outdoor models. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the 51U series is also suitable for heavier-residential usages such as combination space heating and domestic recirculation systems. NON-CONDENSING 27 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-51U-I Natural 15, 199, GTS-51U-E Natural 15, 199, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-51U-I 1 3/4" NPT 3/4 NPT GTS-51U-E 1 3/4" NPT 3/4 NPT *Units are field convertible from natural gas to propane with supplied conversion kit. **For propane, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 51U Temperature Settings GTS-51U-I Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 12 gauge wiring.) 1 F to 16 F (13 options), 12 F Default Factory Setting GTS-51U-E Electric 12 V 82 W / 1.2 A (Operation) 3 W /.7 A (Standby) 97 W /.82 A (Freeze-Protection) ANSI Z CSA 4.3

29 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions 4 Category III Vent Gas convertible from natural gas to propane using the included conversion kit Flow Rate up to 1 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Easy-Link up to 4 heaters or connect up to 2 heaters with a Multi-Unit Controller Dimensions AT-KJr3U/K5U/D3U-IN AT-KJr3U/K5U/D3U-IN 13-3/4" (35 mm) 13-3/4" (35 mm) 1" (254 mm) 1" (254 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) 1-3/4" (45 mm) Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 4-3/8" (113mm) 3-5/8"(93 mm) 3-5/8"(93 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 21-1/2" (545 mm) 2-1/2" (52 mm) 1-3/8" (36 mm) 1-3/8" (36 mm) 2-1/4" (58 mm) 19-3/8" (493 mm) 1-7/8" (47 mm) 1-7/8" HOT (474-5/8" mm) (116 mm) HOT 4-5/8" (116 mm) 12 VAC 1-5/8" (4 mm) 12 VAC 1-5/8" COLD (4 mm) 1-5/8" (41 mm) COLD 1-5/8" (41 GAS mm) 5" (127 mm) GAS 5" (127 mm) 1" (26 mm) 12 VAC 3" (75 mm) GAS 5-1/4" (135 mm) COLD 6" (153 mm) HOT 6" (153 mm) 1" (256 mm) 13-1/8" (334 mm) Flow rate (gpm) HOT 5"(127mm) Set temperature: 125 F (52 C) or lower Set temperature: 13 F (55 C) or higher Set Temperature 13 F (55 C) or higher, maximum flow rate is limited to 8. gpm. 12VAC 1-7/8" (49 mm) GAS 4-1/4" (19 mm) COLD 5" (127 mm) U: Pressure Loss /8" (13 mm) 51U: Flow Rate vs. Temperature Rise 51U: Pressure Loss Temperature rise ( F) Pressure Loss (psi) 4-3/8" (113 mm) Flow Rate (gpm) Set temperature: 125 F (52 C) or lower Set temperature: 13 F (55 C) or higher Set Temperature 125 F (52 C) or higher, maximum flow rate is limited to 8. gpm Head (ft) 28

30 14 SERIES The 14 Series is a high efficiency, ultra-low NOx condensing model with up to.91 Uniform Energy Factor, allowing for the use of 3 or 4 PVC venting or Category IV stainless steel. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. GTS-14-NIH GTS-14-NEH Specifications CONDENSING 29 Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-14-NIH Natural 15, 12, GTS-14-NEH Natural 15, 12, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front UEF Approx Shipping Weight (lbs) GTS-14-NIH 6.6 3/4" NPT 1/2" NPT GTS-14-NEH 6.6 3/4" NPT 1/2" NPT *For propane models, change N to P **For propane models, minimum fire is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. 14 Temperature Settings Dipswitches 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 12 gauge wiring.) 1 F to 14 F with 5 F intervals (9 options), 12 F Default Factory Setting Electric 12 V 54 W /.7 A (Operation) 3 W /.5 A (Standby) 224 W / 2 A (Freeze-Protection) ANSI Z CSA 4.3

31 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Flow Rate up to 6.6 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 12, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions INDOOR MODEL INDOOR MODEL Front view Side view 13-7/8" (352mm) 1" (254mm) 6-1/4" (158.5mm) 4" (12mm) 4" (12mm) 13-7/8" (352mm) 1" (254mm) 6-1/4" (158.5mm) 4" (12mm) 4" (12mm) 1-13/16" (274.6mm) 1-5/16" (262.2mm) 6" (152.1mm) /16" (64.8mm) 2-3/4" (7.2mm) 24" (69.4mm) 22-7/8 (58mm) 24" (69.4mm) 22-7/8 (58mm) Hot 4-3/4" (121.1mm) Condensate drain port 5-1/16" (129.1mm) Hot 4-3/4" (121.1mm) Cold 1/2" (13.3mm) 12VAC 3-1/16" (77mm) 5-3/8" (137mm) Condensate drain port 5-1/16" (129.1mm) 7-1/16" (18mm) Gas 4/1/2" (113.7mm) 5-3/8" (137mm) 7-1/16" (18mm) Cold 1/2" (13.3mm) 12VAC 3-1/16" (77mm) Gas 4/1/2" (113.7mm) 1" (25.5mm) Condensate drain port 3-1/4" (82.1mm) Gas 4-1/8" (15.4mm) Hot 6-1/2" (164.6mm) Cold 7" (178.5mm) 12VAC 7-3/4" (196.5mm) Flow rate (gpm) Bo om view Bo om view Top view 14: Flow Rate vs. Temperature Rise 14: Pressure Loss Condensate drain port 3-1/4" (82.8mm) 35 1/2" (13.3mm) 3 4-3/4" (121.1mm) 3-1/16" (77mm) 5-1/16" (129.1mm) 4-1/2" (113.7mm) Temperature rise ( F) HOT 6-1/2" (165.3mm) Pressure Loss (psi) /16" (16.1mm) 2 GAS /16" (179.2mm) COLD 7-3/4" (197.2mm) 12VAC 6" (152.1mm) Top view 13-5/16" (338.1mm) 2-5/16" (58.4mm) 6-1/4" (158.5mm) Flow Rate (gpm) Head (ft) 3

32 24 SERIES The 24 series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3 PVC venting and has clearance to combustibles. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. GTS-24-NIH GTS-24-NEH Specifications CONDENSING 31 Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-24-NIH Natural 15, 16, GTS-24-NEH Natural 15, 16, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum fire rate is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. UEF Approx Shipping Weight (lbs) GTS-24-NIH 6.6 3/4" NPT 3/4" NPT GTS-24-NEH 6.6 3/4" NPT 3/4" NPT Temperature Settings Built In / without remote 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F with 5 F intervals (9 options), 12 F Default Factory Setting Electric 12 V 73 W /.61 A (Operation) 3 W /.3 A (Standby) 174 W / 1.5 A (Freeze-Protection) ANSI Z CSA 4.3

33 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Flow Rate up to 6.6 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 16, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 4" (12 mm) Female 17-3/4" (45 mm) 7" (18 mm) 4" (11 mm) 4" (12 mm) Female 11-1/4" (285 mm) 11-1/4" (285 mm) 5-3/4" (147 mm) 5-3/4" (147 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 22-1/22" (57 mm) 22-1/22" (57 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) 1-3/4" (272mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) 1-3/4" (272mm) HOT 4-3/4" (12 mm) Drain port 6-3/4" (17 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 1/2 (13 mm) 1/2 (13 mm) GAS 5-1/8" (131 mm) GAS 5-1/8" (131 mm) HOT 5-1/2" (14 mm) HOT 5-1/2" (14 mm) Drain port 6" (152 mm) COLD 6-3/4" (172 mm) Drain port 6" (152 mm) COLD 6-3/4" (172 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 12 VAC 6-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) 7-7/8" (199 mm) Flow Flow Rate rate (gpm) (gpm) Condensate drain port 7-1/2" (189 mm) 24H: HOT Flow 4-3/4" Rate (12 vs. Temperature mm) Rise GAS 5-7/8" (147 mm) 1 12 VAC 3" (77 mm) : Flow Rate vs. Temperature Rise 24: Pressure Loss HOT 5-1/2" (14 mm) 12 VAC 6-7/8" (174 mm) GAS 5-1/8" (131 mm) COLD 6-3/4" (172 mm) Condensate drain port 7-7/8" (199 mm) 5-3/4" (147 mm) 3 2 COLD 5/8" (17 mm) Pressure Loss (psi) Pressure Loss (psi) 24H: Pressure Loss Temperature Rise ( F) Temperature rise ( F) Flow Rate (gpm) /8" (448 mm) /4" (159 mm) Head (ft) Head (ft) 32

34 34 SERIES The 34 series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3 PVC venting and has clearance to combustibles. Indoor models are certified up to 1,1 ft. altitude. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. GTS-34-NIH GTS-34-NEH Specifications CONDENSING 33 Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-34-NIH Natural 15, 18, GTS-34-NEH Natural 15, 18, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum fire rate is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. UEF Approx Shipping Weight (lbs) GTS-34-NIH 8 3/4" NPT 3/4" NPT GTS-34-NEH 8 3/4" NPT 3/4" NPT Temperature Settings Built In / without remote 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F with 5 F intervals (9 options), 12 F Default Factory Setting Electric 12 V 78 W /.65 A (Operation) 3 W /.3 A (Standby) 174 W / 1.5 A (Freeze-Protection) ANSI Z CSA 4.3

35 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Flow Rate up to 8 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 18, btu/h, 15 psi). 4 psi or above recommended for max. flow Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 4" (12 mm) Female 17-3/4" (45 mm) 17-3/4" (45 mm) 7" (18 mm) 4" (11 mm) 7" (18 4" mm) (12 mm) 4" (11 mm) 4" (12 mm) Female 4" (12 mm) Female Female 11-1/4" (285 mm) 5-3/4" (147 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 22-1/22" (57 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) 1-3/4" (272mm) HOT 4-3/4" (12 mm) Drain port 6-3/4" (17 mm) HOT 4-3/4" (12 mm) Drain port COLD 5/8" (17 mm) 6-3/4" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 1/2 (13 mm) GAS 5-1/8" (131 mm) HOT 5-1/2" (14 mm) Drain port 6" (152 mm) COLD 6-3/4" (172 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) Flow rate (gpm) Flow Rate (gpm) HOT 4-3/4" (12 mm) 34H: Flow Rate vs. Temperature Rise HOT 5-1/2" (14 mm) 12 VAC 6-7/8" (174 mm) GAS 5-1/8" (131 mm) COLD 6-3/4" (172 mm) 3. COLD 5/8" (17 mm) Temperature Rise ( F) Temperature rise ( F) Condensate drain port 7-1/2" (189 mm) GAS 5-7/8" (147 mm) 12 VAC 3" (77 mm) 34H: Pressure Loss 34: Flow Rate vs. Temperature Rise 34: Pressure Loss Condensate drain port Pressure 7-7/8" Loss Loss (199 (psi) (psi) mm) /8" (448 mm) /4" (159 mm) /4" (147 mm) Flow Rate (gpm) Flow Rate (gpm) Head (ft) Head (ft) 34

36 54 SERIES Complies with Ultra-Low NOx regulations. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the 54 is also suitable for heavier residential usages such as combination space heating and domestic recirculation systems. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. Indoor models are certified up to 1,1 ft. altitude. GTS-54-NIH GTS-54-NEH Specifications CONDENSING 35 Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) GTS-54-NIH Natural 15, 199, GTS-54-NEH Natural 15, 199, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum fire rate is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. UEF Approx Shipping Weight (lbs) GTS-54-NIH 1 3/4" NPT 3/4" NPT GTS-54-NEH 1 3/4" NPT 3/4" NPT Temperature Settings Built In / without remote 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 16 F with 5 F intervals (13 options), 12 F Default Factory Setting Electric 12 V 89 W /.74 A (Operation) 4 W /.4 A (Standby) 175 W / 1.5 A (Freeze-Protection) ANSI Z CSA 4.3

37 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Flow Rate up to 1 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi). 4 psi or above recommended for max. flow Easy-Link up to 4 heaters or connect up to 2 heaters with a Multi-Unit Controller Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 4" (12 mm) Female 17-3/4" (45 mm) 17-3/4" (45 mm) 7" (18 mm) 4" (11 mm) 7" (18 4" mm) (12 mm) 4" (11 mm) 4" (12 mm) Female 4" (12 mm) Female Female 11-1/4" (285 mm) 5-3/4" (147 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 22-1/22" (57 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) 1-3/4" (272mm) HOT 4-3/4" (12 mm) Drain port 6-3/4" (17 mm) HOT 4-3/4" (12 mm) Drain port COLD 5/8" (17 mm) 6-3/4" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 1/2 (13 mm) GAS 5-1/8" (131 mm) HOT 5-1/2" (14 mm) Drain port 6" (152 mm) COLD 6-3/4" (172 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) Flow rate (gpm) Flow rate (gpm) HOT 4-3/4" (12 mm) 54H: Flow Rate vs. Temperature Rise 2 4 HOT 5-1/2" (14 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 7-1/2" (189 mm) GAS 5-7/8" (147 mm) 54H: Pressure Loss 12 VAC 3" (77 mm) 54: Flow Rate vs. Temperature Rise 54: Pressure Loss Temperature rise ( F) GAS 5-1/8" (131 mm) COLD 5/8" (17 mm) Set temperature: 125 F or lower Set temperature: 13 F or higher 5 45 COLD 6-3/4" (172 mm) Pressure Loss Loss (psi) (psi) Condensate drain port 7-7/8" (199 mm) /4" (147 mm) 17-5/8" (448 mm) 6-1/4" (159 mm) Flow Rate (gpm) Set temperature: 125 F or lower Set temperature: 13 F or higher Head (ft) Head (ft) 36

38 54P SERIES The 54P Series integrates a recirculation pump to provide instant hot water in residential applications with dedicated recirculation lines. The pump is easily controlled with a simple user interface and multiple pump settings allow you to customize pump operation to meet your needs while maximizing heater efficiency. Indoor models have an integrated temperature and pump controller and outdoor models include a remote control as a standard feature. GTS-54P-NI GTS-54P-NE Specifications CONDENSING 37 Model Number* Type Gas Consumption Input Minimum (BTU/H) Inlet Gas Pressure** Maximum (BTU/H) Minimum (in. W.C.) Maximum (in. W.C.) GTS-54P-NI Natural 15, 199, GTS-54P-NE Natural 15, 199, Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum fire is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. UEF Approx Shipping Weight (lbs) GTS-54P-NI 1 3/4" NPT 3/4" NPT GTS-54P-NE 1 3/4" NPT 3/4" NPT P Temperature Settings Built In / without remote 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 14 F with 5 F intervals (9 options), 12 F Default Factory Setting Electric 12 V 1.9 W / 1.34 A (Operation) 5 W /.1 A (Standby) 192 W / 1.6 A (Freeze-Protection) ANSI Z CSA 4.3

39 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Integrated recirculation pump Flow Rate up to 1 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi). 4 psi or 54P above Indoor recommended (AT-H3P-DV) 54P for Indoor max. (AT-H3P-DV) flow Easy-Link with up to 3 other 54 heaters Warranty 15-year limited warranty on heat exchanger in residential applications. 5-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions Φ 4" (12 mm) Female 17-3/4" (45 mm) 15" (381 mm) 7" (18 mm) Φ 4" (12 mm) Female Φ 4" (12 mm) Female 17-3/4" (45 mm) 15" (381 mm) 7" (18 mm) 11-1/4" (285 mm) Φ 4" (12 mm) Female 5-3/4" (147 mm) 11-1/4" (285 mm) 5-3/4" (147 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) COLD 5/8" (17 mm) RETURN 3-1/8" (79 mm) 12 VAC 3" (77 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 1/2 (13 mm) RETURN 4-5/8" (117 mm) GAS 5-1/8" (131 mm) Drain port 6-1/4" (159 mm) HOT 6-1/2" (164 mm) COLD 6-3/4" (172 mm) 12 VAC 3-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) 1/2 (13 mm) RETURN 4-5/8" (117 mm) GAS 5-1/8" (131 mm) Drain port 6-1/4" (159 mm) HOT 6-1/2" (164 mm) COLD 6-3/4" (172 mm) 12 VAC 3-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) Flow rate (gpm) HOT 6-1/2" (164 mm) Drain port 6-1/4" (159 mm) RETURN 4-5/8" (117 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) HOT 6-1/2" (164 mm) Drain port 6-1/4" (159 mm) RETURN 4-5/8" (117 mm) GAS 5-1/8" (131 mm) COLD 6-3/4" (172 mm) 12 VAC 3-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) 17-5/8" (448 mm) 54P: Flow Rate vs. Temperature Rise 17-5/8" (44854P: mm) Pressure Loss RETURN 3-1/8" (79 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) Temperature rise ( F) 5-3/4" (147 mm) Set temperature: 125 F or lower Set temperature: 13 F or higher GAS 5-1/8" (131 mm) COLD 6-3/4" (172 mm) 12 VAC 3-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) 3 GAS 5-3/4" (147 mm) Condensate drain port 256-1/4" (159 mm) 7-1/2" (189 mm) Pressure Loss (psi) /4" (147 mm) 6-1/4" (159 mm) Flow Rate (gpm) Set temperature: 125 F or lower Set temperature: 13 F or higher Head (ft) 38

40 91 SERIES The 91 Series, specifically designed for heavy-duty applications, is the largest State tankless heater yet and the most powerful (14.5 GPM max) in the tankless industry. The 91 Series is suitable for commercial applications (hotels, restaurants, government, convalescent homes, etc.) that require high demand and the most durable of heaters. Along with commercial-grade copper alloy, the 91 Series is the only commercial unit in the industry that offers a dual-combustion system, providing redundancy for added reliability. GTS-91-NIE COMMERCIAL 39 Specifications Model Number* Type Gas Consumption Input Minimum Maximum (BTU/H) (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) Thermal Efficiency GTS-91-NIE Natural 15, 38, % Model Number* Connections Clearances (in.) Approx Shipping Water Gas Top Bottom Side Front Weight (lbs) GTS-91-NIE 1" NPT 1" NPT 12*** *** 113 For ASME version, use model number ATIO-91-A(N/P) *For propane models, change N to P **For propane models, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. ***If installed outdoors, top clearance is 36 and front clearance is Temperature Settings Built In / without remote 11 F, 115 F, 12 F (default), 135 F, 145 F, 155 F, 165 F, 185 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 175 F with 5 F intervals (16 options), 12 F Default Factory Setting Electric 12 VAC 175 W / 1.48 A (Operation) 16 W /.13 A (Standby) 271 W / 2.26 A (Freeze-Protection) ANSI Z CSA 4.3

41 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Low NOx Emissions Flow Rate up to 14.5 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 38, btu/h, 15 psi). Easy-Link up to 4 heaters or connect up to 1 heaters with a Multi-Unit Controller Warranty 6-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details 4 psi or above recommended for max. flow Dimensions 91: Flow Rate vs. Temperature Rise 91: Pressure Loss 91: Flow Rate vs. Temperature Rise 91: Pressure Loss Flow rate (gpm) Pressure Loss (psi) Head (ft) Temperature rise ( F) Set temperature: 145 F or lower Set temperature: 15 F or higher Flow Rate (gpm) Set temperature: 145 F or lower Set temperature: 15 F or higher 4

42 CT-199 SERIES The CT-199 is well suited for commercial applications such as small restaurants and beauty salons. Complies with Ultra-Low NOx regulations. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the CT-199 is also suitable for combination space heating and domestic recirculation systems. Indoor models have an integrated temperature controller and outdoor models include a remote control as a standard feature. Indoor models are certified up to 1,1 ft. altitude. SCT-199I-N SCT-199O-N COMMERCIAL 41 Specifications Model Number* Type Gas Consumption Input Minimum (BTU/H) Maximum (BTU/H) Inlet Gas Pressure** Minimum (in. W.C.) Maximum (in. W.C.) Thermal Efficiency SCT-199I-N Natural 15, 199, %.93 SCT-199O-N Natural 15, 199, %.95 Model Number* Maximum GPM Hot/Cold Connections Gas Connection Clearances (in.) Top Bottom Side Front *For propane models, change N to P **For propane models, minimum fire rate is 13, BTU/H, minimum inlet gas pressure is 8. in. W.C. and maximum inlet gas pressure is 14. in. W.C. UEF Approx Shipping Weight (lbs) SCT-199I-N 1 3/4" NPT 3/4" NPT SCT-199O-N 1 3/4" NPT 3/4" NPT CT-199 Temperature Settings Built In / without remote 12 F (default) 14 F With remote (max. distance 4 from heater, non-polarized 2 gauge wiring.) 1 F to 185 F with 5 F intervals (16 options), 12 F Default Factory Setting Electric 12 V 89 W /.74 A (Operation) 4 W /.4 A (Standby) 175 W / 1.5 A (Freeze-Protection) ANSI Z CSA 4.3

43 Specifications Indoor and Outdoor Installation Options Power Vent or Power Direct Vent Design Ultra-Low NOx Emissions Flow Rate up to 1 GPM Values based on factory testing..4 GPM required for continuous fire after initial ignition Water Pressure: psi Pressure Only Relief Valve Requires (Min 199, btu/h, 15 psi). 4 psi or above recommended for max. flow Easy-Link up to 4 heaters or connect up to 2 heaters with a Multi-Unit Controller 96% thermal efficiency Warranty 6-year limited warranty on heat exchanger in commercial applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions 4" (12 mm) Female 17-3/4" (45 mm) 17-3/4" (45 mm) 7" (18 mm) 4" (11 mm) 7" (18 4" mm) (12 mm) 4" (11 mm) 4" (12 mm) Female 4" (12 mm) Female Female 11-1/4" (285 mm) 5-3/4" (147 mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 24-7/8" (631 mm) 23-5/8" (6 mm) 6-1/4" (159mm) 22-1/22" (57 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) 1-3/4" (272mm) HOT 4-3/4" (12 mm) Drain port 6-3/4" (17 mm) HOT 4-3/4" (12 mm) Drain port COLD 5/8" (17 mm) 6-3/4" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) COLD 5/8" (17 mm) 12 VAC 3" (77 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 1/2 (13 mm) GAS 5-1/8" (131 mm) HOT 5-1/2" (14 mm) Drain port 6" (152 mm) COLD 6-3/4" (172 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 7-7/8" (199 mm) Flow rate (gpm) Flow rate (gpm) HOT 4-3/4" (12 mm) CT-199: Flow Rate vs. Temperature Rise CT-199: Flow Rate vs. Temperature Rise 2 4 Temperature rise ( F) HOT 5-1/2" (14 mm) 12 VAC 6-7/8" (174 mm) Condensate drain port 7-1/2" (189 mm) GAS 5-7/8" (147 mm) CT-199: Pressure Loss 12 VAC 3" (77 mm) GAS 5-1/8" (131 mm) COLD 5/8" (17 mm) Set temperature: 125 F or lower Set temperature: 13 F or higher COLD 6-3/4" (172 mm) Pressure Condensate Loss Loss (psi) (psi) drain port 7-7/8" (199 mm) CT-199: Pressure Loss 5-3/4" (147 mm) 17-5/8" (448 mm) 6-1/4" (159 mm) Flow Rate (gpm) Set temperature: 125 F or lower Set temperature: 13 F or higher Head (ft) Head (ft) 42

44 COMMERCIAL TANKLESS RACK SYSTEM Commercial tankless rack systems allow the power of tankless technology to be customized with unprecedented flexibility. State offers wall mount, free standing and backto-back configurations with easy options to integrate storage when needed. For jobs that require more than six units, custom solutions are available. Installation is easier than ever as the rack systems are constructed from a light weight frame and just three connections for hot water, cold water and gas. Commercial rack systems are expandable with up to 1,194, BTU on a single system. The rack system is designed so that individual units can be isolated for maintenance without shutting down the entire rack to provide non-stop operation. 43

45 MULTI- UNIT SYSTEMS State tankless water heaters have the capability to link multiple heaters together to act as a system. The primary heater is rotated to ensure even operation of all heaters. The 51/U/C, 54, CT-199, and 91 models can Easy-Link up to four units using included communication cables. For even larger applications the 51U (series 2), 51C, 54, CT-199, and 91 models also feature the Multi-Unit System, allowing a greater number of units to work together as an integrated system using a Multi- Unit System Controller. The Multi-Unit System can control up to twenty 51U (series 2), 51C, 54, and CT-199 or up to ten 91 heaters. Unit Comparison 51 Series 51U/C Series 54/CT-199 Series 91 Series Easy-Link (No Controller Necessary) Up to 4 units Up to 4 units Up to 4 units Up to 4 units Maximum input (BTU/h) 796, 796, 796, 1,52, Multi-UNIT* N/A Up to 2 units Up to 2 units Up to 1 units Maximum input (BTU/h) N/A 3,98, 3,98, 3,8, *Requires Multi-Unit Controller: COMMON VENTING The State common venting system utilizes fewer unique components so you can design your venting based on project requirements. More design flexibility Fewer wall penetrations Able to use schedule 4 PVC on intake and exhaust Heaters don t de-rate when common vented Design doesn t override redundancy benefits 44

46 RESIDENTIAL COMBI BOILERS DOMESTIC HOT WATER AND SPACE HEATING HOW IT WORKS: A hot water tap is opened causing incoming potable water to flow through the flat plate heat exchanger. Heated boiler water, supplied from the fire tube heat exchanger, flows through a diverter valve and into the flat plate heat exchanger where it prioritizes heating the incoming domestic water to the designated set point temperature. The integrated boiler pump circulates boiler water through the fire tube heat exchanger to keep it at set point temperature. When there is a call for space heating, the diverter valve directs the heated boiler water into the external space heating loop. MORE HOT WATER The ProLine XE Combi Boiler provides up to 74% more heating capacity than other combi boilers. For domestic hot water (DHW), it is also sized large enough to provide 2.6 gpm (11 model) to 4.8 gpm (199 model) at a 77 F temperature rise. ENERGY CONSERVATION With a 1:1 turndown ratio, the ProLine XE combi boiler has the ability to modulate combustion to maximize efficiency and prevent short cycling when there are small heating demands. COMPACT SIZE The ProLine XE combi boiler combines space heating and domestic hot water (DHW) in one appliance, providing a space saving choice for builders and specifying engineers. 45

47 COMBI BOILER FLOW RATE GUIDE TEMPERATURE RISE VS. GALLONS PER MINUTE Temperature Rise 4 F 45 F 5 F 55 F 6 F 65 F 7 F 75 F 8 F 85 F 9 F 95 F 1 F 11 model model model INNOVATIVE DESIGN Fire tube heat exchanger with a higher rated MAWP of 5 psi reduces unit pressure drop. The easy access front panel can be removed without tools to simplify service. EASY INSTALLATION AND SERVICEABILITY The LCD display is simple to navigate, providing diagnostic and system information in real words, not codes. The first time you turn on the combi boiler, you ll be lead through our Set Up Wizard for quick and easy programing. COMPACT SIZE The Preheat Function uses an integrated recirculation pump to ensure that the domestic hot water reaches its target temperature faster.the Air Handler Interlock prevents cool air delivery while the boiler is in domestic hot water mode to increase user comfort. 46

48 PROLINE XE COMBI BOILER The ProLine XE combi boiler is designed for residential domestic hot water and space heating applications. It s made with durable commercial-grade materials such as a stainless steel fire tube, brass connections and a brazed stainless steel flat plate heat exchanger. Designed with the contractor in mind, an easy-to-remove cover and advanced Set-Up Wizard make the ProLine XE combi boiler simple to install and maintain. COMBI BOILER 47 Specifications Model Number* *S Models can operate up to 4,5. For high altitude (3, - 9,6 ), change S to H. For liquid propane (LP), change N to P. For LP, minimum supply pressure is 8. in. W.C. Indoor installation only. Temperature Settings Gas Consumption Input Minimum BTU/H Maximum BTU/H Space Heating: 6 F 19 F, Default 185 F DHW: 6 F 19 F, Default 15 F Minimum in. W.C. Electric 12 V 24V controls 2.2 Amps Maximum in. W.C. AFUE% Heating Net AHRI Rating Capacity BTU/H BTU/H SCB-11S-N 11, 11, , 89, SCB-15S-N 15, 15, , 121, SCB-199S-N 19, , , 161, Model Number* GPM at 77 F Rise Space Heating Water Connections DHW Gas Connection Approx. Shipping Weight (lbs) SCB-11S-N NPT 3/4 NPT 1/2 NPT 139 SCB-15S-N NPT 3/4 NPT 1/2 NPT 142 SCB-199S-N NPT 3/4 NPT 1/2 NPT 159 ANSI Z21.13 CSA 4.9

49 Specifications Indoor Installation Only Meets Ultra-Low NOx requirements Modulating burner with 1:1 turndown ratio Power Direct Vent Design DHW flow rate up to 4.8 gpm at 77 F temperature rise 5 PSI max pressure (boiler); 15 PSI max pressure (DHW) Warranty 1-year limited warranty on heat exchanger in residential applications. 5-year warranty on all parts. Refer to StateWaterHeaters.com for further warranty details Dimensions FRONT BOTTOM 17-1/4 8-3/4 12-3/ /4 14-3/4 3-1/2 2-3/4 6-1/ /4 2-3/4 6-1/2 2-3/4 32-1/2 13-1/ /2 1-1/ /2 2-3/4 TOP 11 Models TOP Models Flow rate (gpm) Combi Boiler: Flow Rate vs. Temperature Rise Pressure Loss (psi) Combi Boiler: Pressure Loss Loss Head (ft) Delta T ( F) SCB-199 SCB-15 SCB-11 Flow Rate (gpm) 48

50 TANKLESS APPLICATION DIAGRAMS State tankless water heaters can be used in a wide variety of applications. Whether used in recirculation systems, in conjunction with storage tanks or with heating applications, our commercial units are built to provide continuous hot water when sized appropriately for your home s needs. *Local codes dictate proper compliance. Legend Basic Installation (excluding 54P) Pump Shut Off / Isolation Valves Pressure Relief Valve Air Vent Aquastat Hot Water to Fixtures Hot Water Return Gas Supply Cold Water Supply Check Valve Full Port Ball Valve Expansion Tank 1. Recirculation pump shall be sized for 2-4 gpm per activated heater (4-8 gpm for 91) 2. Recirculation pump shall be controlled by an aquastat. The minimum suggested differential should be 1 F 3. For installations without recirculation, remove the check valves, pump, and aquastat. 54P Basic Installation (54P only) All application diagrams shown are concept drawings only. These diagrams are only to be used as basic guides. It is up to the application designer to properly design the plumbing layout and correctly size all components within an application (pumps, piping, storage tanks, water heaters, etc.). All national and local codes must be followed and will dictate proper compliance. 49

51 MULTIPLE UNITS Multiple Units with Easy-Link Hot Water to Fixtures Gas Supply Hot Water Return Cold Water Supply Expansion Tank 1. Recirculation pump shall be sized for 2-4 gpm per activated heater (4-8 gpm for 91) 2. Recirculation pump shall be controlled by an aquastat. The minimum suggested differential should be 1 F 3. The automatic air should be installed at the highest location of the system in accordance with the manufacturer s instructions. Multiple Unit with the Multi-Unit Controller Gas Supply Hot Water to Fixtures Hot Water Return Cold Water Supply Expansion Tank 1. Recirculation pump shall be sized for 2-4 gpm per activated heater (4-8 gpm for 91) 2. Recirculation pump shall be controlled by an aquastat. The minimum suggested differential should be 1 F 3. The automatic air should be installed at the highest location of the system in accordance with the manufacturer s instructions. All application diagrams shown are concept drawings only. These diagrams are only to be used as basic guides. It is up to the application designer to properly design the plumbing layout and correctly size all components within an application (pumps, piping, storage tanks, water heaters, etc.). All national and local codes must be followed and will dictate proper compliance. 5

52 MULTI-UNITS Multiple Unit with Storage Hot Water to Fixtures Gas Supply T-1 P-2 T-2 Hot Water Return Cold Water Supply Expansion Tank P-1 1. Tank circulation pump, P-1, should be controlled by tank aquastat, T Tank aquastat, T-1, should be set 2 F below water heater set temperature. 3. Pump P-1 should be sized to provide flow necessary to heat the storage tank. Refer to the water heater s spec sheet for pressure drop curves. All application diagrams shown are concept drawings only. These diagrams are only to be used as basic guides. It is up to the application designer to properly design the plumbing layout and correctly size all components within an application (pumps, piping, storage tanks, water heaters, etc.). All national and local codes must be followed and will dictate proper compliance. 51

53 SOLAR TANKLESS BACK UP COLLECTOR SENSOR TANKLESS WATER HEATER H C TEMPERED HOT WATER SOLAR COLLECTOR GAS SUPPLY T HOT WATER RETURN FIELD SUPPLIED PUMP AQUASTAT TANKLESS SUPPLY LINE TANK SENSOR SOLAR CONTROL COLD WATER INLET STORAGE TANK NOTES: 1. Ensure field supplied tank aquastat is in top 1/3 section of the tank. 2. Set tank aquastat 1 F lower than tankless unit set point. 3. Ensure the hot water return from the tankless unit is connected to the hot water outlet from the solar tank as shown in the drawing. 4. The supply line to the tankless unit may be made at the element fitting (after element is removed) with a /2 NPSH fitting and gasket. 5. Field supplied pump must provide > 3 GPM flow through tankless backup loop - contact pump manufacturer for sizing assistance. All application diagrams shown are concept drawings only. These diagrams are only to be used as basic guides. It is up to the application designer to properly design the plumbing layout and correctly size all components within an application (pumps, piping, storage tanks, water heaters, etc.). All national and local codes must be followed and will dictate proper compliance. 52

54 VENTING DIAGRAMS (EXAMPLES) 4 Sidewall Termination 3 (Please check the wall thickness for proper installation) 2 1 Models 11/U, 31/U, 51/U 4 Combustible Sidewall Termination Qty. 4 Kit Part Number: " Sidewall Hood Terminator " Wall Thimble (4."-7.") " 9 degree Elbow " Female-Female Adaptor Models 11/U, 31/U, 51/U 4" Non-Combustible Sidewall Termination Kit Part Number: " Sidewall Hood Terminator " 9 degree Elbow " Female-Female Adaptor 1 Qty. 53

55 Up & Out Standard Installation Combustible Wall 4 Sidewall Termination (With Condensate Trap) 3 (Please check the wall thickness for proper installation) Models 11/U, 31/U, 51/U 4 Combustible Sidewall Termination (With Condensate Trap) Kit Part Number: " Sidewall Hood Terminator Wall Thimble ( ) Degree Elbow Universal Appliance Adaptor 1 Qty Models 11/U, 31/U, 51/U 4" Non-Combustible Sidewall Termination (With Condensate Trap) Kit Part Number: " Sidewall Hood Terminator " 9 degree Elbow " Universal Appliance Adaptor 1 Qty. 54

56 DIRECT VENT, CONCENTRIC SIDEWALL TERMINATION 11, 31, 51 Models 1 Models 11, 31, Sidewall Thickness Direct Vent, Concentric Termination Qty Concentric Intake/Exhaust Kit 1 3 Kit Part Number: Universal Appliance Adaptor 1 3 NA 3 Aluminum Flex Direct Vent Conversion Kit Sidewall Thickness Direct Vent, Concentric Termination Qty. 4 2 Kit Part Number: Concentric Intake/Exhaust Kit Universal Appliance Adaptor 1 3 NA 3 Aluminum Flex Direct Vent Conversion Kit 1 91 Model Model Sidewall Thickness Direct Vent, Concentric Termination Kit Part Number: Concentric Intake/Exhaust Kit Universal Appliance Adapter 1 3 NA 5 Aluminum Flex Direct Vent Conversion Kit Sidewall Thickness Direct Vent, Concentric Termination Qty. Kit Part Number: Concentric Intake/Exhaust Kit Universal Appliance Adaptor 1 3 NA 5 Aluminum Flex Direct Vent Conversion Kit 1 Qty. 55

57 Vertical Venting: Flat Roof Termination 4 Rooftop Termination Models 11/U, 31/U, 51/U 4 Flat Roof Termination Kit Part Number: Extreme Weather Rain Cap Storm Collar Flat Roof Flashing Vertical Firestop degree Elbow Universal Appliance Adaptor 1 7 Refer to Accessories Chart Straight Pipe TBD Qty Models 11/U, 31/U, 51/U 4 Angled Roof Termination Kit Part Number: Extreme Weather Rain Cap Storm Collar Angeled Roof Flashing Vertical Firestop degree Elbow Universal Appliance Adaptor 1 7 Refer to Accessories Chart Straight Pipe TBD Qty. 56

58 5 Sidewall Termination Model 91 5" Combustible Sidewall Termination Kit Part Number: " Sidewall Hood Terminator " Wall Thimble (4."-7.") " 9 degree Elbow " Female-Female Adaptor 1 Qty Model 91 5" Non-Combustible Sidewall Termination Kit Part Number: " Sidewall Hood Terminator " 9 degree Elbow " Female-Female Adaptor 1 Qty. 57

59 5 Sidewall Termination (With Condensate Traps) Model 91 5" Combustible Sidewall Termination (With Condensate Trap) Kit Part Number: " Sidewall Hood Terminator " Wall Thimble (4."-7.") " 9 degree Elbow " Universal Appliance Adaptor 1 Qty Model 91 5" Non-Combustible Sidewall Termination (With Condensate Trap) Kit Part Number: " Sidewall Hood Terminator " 9 degree Elbow " Universal Appliance Adaptor 1 Qty. 58

60 5 Rooftop Termination Model 91 5 Flat Roof Termination Kit Part Number: Extreme Weather Rain Cap Storm Collar Flat Roof Flashing Vertical Firestop degree Elbow Universal Appliance Adaptor 1 7 Refer to Accessories Chart Straight Pipe 1 Qty. TBD Model 91 Qty. 5 Angled Roof Termination Extreme Weather Rain Cap Storm Collar Kit Part Number: Angled Roof Flashing Vertical Firestop degree Elbow Universal Appliance Adaptor 1 7 Refer to Accessories Chart Straight Pipe TBD 59

61 CONCENTRIC VENT SERIES Horizontal Installa on 1 Horizontal Installation Models 11C, 31C, 51C 1 Standard Sidewall Kits* 2 Straight Pipe 3 Elbow (11.5") (21") (1") (19.5") (39") (45 ) (87 ) 4 Condensate Trap Condensate Collector *This kit includes one 87 elbow Horizontal Installa on

62 CONCENTRIC VENT SERIES Ver cal Installa on 2 1 Vertical Installation Models 11C, 31C, 51C 1 Roof Termination (38") Tile/Shingle Roof Flashing 3 Straight Pipe (1/12 to 6/12 pitch) (8/12 to 16/12 pitch) (6/12 to 12/12 pitch) (Flat Roof) (1") (19.5") (39") 4 Pipe Hangers Elbow (45 ) (87 ) 6 Condensate Trap Condensate Collector Ver cal Installa on

63 VENTING COMPONENTS Simple Leak-Proof Gasketed Connections No Sealant Required. High Quality Category III / IV Stainless Steel. Versatile Vertical and Horizontal Terminations. Convenient Vent Kits Available. UL Listed. All Connections have Heat-Resistant Rubber Gaskets. Nova Vent Part # DESCRIPTION Nova Vent Part # DESCRIPTION Straight Vent Pipe Backflow Preventer Straight pipe - 6 Length Straight pipe - 12 Length Straight pipe - 24 Length Straight pipe - 36 Length Straight pipe - 48 Length Backflow Preventer & F-F Adaptor 5 Back-flow Preventer & F-F Adaptor Straight pipe - 6 Length Straight pipe - 12 Length Straight pipe - 24 length Straight pipe - 36 Length Straight pipe - 48 Length Adjustable Vent Pipe Condensation Drain Horizontal Drain Tee Horizontal Drain Tee Vertical Drain Tee Adjustable Pipe (7-9.9 ) Vertical Drain Tee Adjustable Pipe (7-9.9 ) Elbow Degree Elbow Degree Elbow Degree Elbow Degree Elbow Support Support Strap (1 ) Support Strap (1 ) Wall Thimble Wall Thimble (4-7 ) Wall Thimble (5-1 ) Adaptor Wall thimble (4-7 ) Female-Female Adaptor Wall thimble (5-1 ) Female-Female Adaptor Universal Appliance Adaptor 3-in-1 (F-F adaptor, condensate drain, & back-flow preventer) 5 Universal Appliance Adaptor 3-in-1 (F-F adaptor, condensate drain, & back-flow preventer) 4 Sidewall Termination & Thimble Kit Sidewall Vent Terminator (Hood) and Wall Thimble (4-7 ) Sidewall Vent Terminator (Hood) and Wall Thimble (5-1 ) Note: 11/U, 14, 31/U, 51/U, 24, 34, 54 series are compatible with 4 components. 91 series is compatible with 5 components. 62

64 Nova Vent Part # DESCRIPTION Nova Vent Part # DESCRIPTION Termination Intake Hood (Galvanized) Termination Tee Termination Tee Exhaust Sidewall Vent Terminator (Hood) 5 Exhaust Sidewall Vent Terminator (Hood) Rain Cap Direct Vent, Concentric Sidewall Termination Kit Includes : DV Conversion Kit, Concentric Termination, Universal Adaptor 3-in-1, Aluminum Flex and Gear Clamp Extreme Weather Rain Cap Extreme Weather Rain Cap Concentric PVC Termination Firestop Firestop Firestop Roof Flashing to 1. 3 Intake, 4 Exhaust 12. to Intake, 4 Exhaust 5. to 1. 4 Intake, 4 Exhaust 12. to Intake, 4 Exhaust 5. to 1. 5 Intake, 5 Exhaust 12. to Intake, 5 Exhaust Flat Roof Flashing Flat Roof Flashing Angled Roof Flashing Angled Roof Flashing Storm Collar Storm Collar Storm Collar Direct Vent Conversion Kit Direct Vent Conversion Kit for Indoor models 11 / 31 / Direct Vent Conversion Kit for Model 91 Note: 11/U, 14, 31/U, 51/U, 24, 34, 54 series are compatible with 4 components. 91 series is compatible with 5 components. 63