PG PLUS-25/30/35/40 & 45 Gas Fired Combination Heaters Category IV Vented Appliance - Input from 100,000 to 199,000 Btu/hr - NOTICE Warranty Registration Card must be filled out by the customer and mailed within thirty (30) days of installation in order to gain warranty coverage. When receiving the Delta Performance unit, any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.
Table of Contents PRODUCT AND SAFETY INFORMATION Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Product Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Operating Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Code Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents U-Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-16 Domestic Drain Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Multiple Units Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Storage Tank Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 TR/Smart Series Application . . . . . . . . . . . . . . . . .
Table of Contents SECTION VII - GAS PIPING Gas Supply Piping Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Natural Gas Pipe Sizing -Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Natural Gas Supply Pressure Requirements. . . . . . . . . . . . . . . . . . . 38 Propane Gas Pipe Sizing - Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Propane Gas Supply Pressure Requirements . . . . . . . . . . . . . . . . . .
Table of Contents SECTION XI - START-UP PROCEDURES Final Checks Before Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 PERFORMANCE PLUS Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 If PERFORMANCE PLUS Does Not Start Correctly . . . . . . . . . . . . . . . . . 51 Check the PERFORMANCE PLUS and System . . . . . . . . . . . . . . . . . . . . . 51 Start-Up / Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Inspection of Ignition Electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Check Ignition Wiring and Ground Wiring . . . . . . . . . . . . . . . . . . . 61 Check Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Check Thermostat Limit Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Perform Start-Up and Checkout Procedure . . . . . . . . . . . . . . . . . . . 61 Check Burner Flame . . . . . . . . . . . . . . . . . . .
Product & Safety Information The following terms are used throughout this manual to bring attention to the presence of potential hazards or to important information concerning the product. DANGER NOTICE Indicates the presence of a hazardous situation which, if ignored, will result in death, serious injury or substantial property damage. Indicates special instructions on installation, operation or maintenance, which are important to equipment but not related to personal injury hazards.
Product & Safety Information WARNING . Protection must be taken against excessive temperature and pressure! Bacteria can develop in the domestic water system if certain minimum water temperatures are not maintained. TO PROTECT AGAINST EXCESSIVE TEMPERATURE AND PRESSURE DANGER Water temperature over 125ºF can cause s e v e re burns instantly or death fro m scalds. • • Children, disabled and elderly are at highest risk of being scalded. - Never leave them unattended in or near shower, bathtub or sink.
Product & Safety Information DANGER WARNING Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system which has been under water. Should overheating occur or the gas supply fails to shut off, turn OFF the manual gas control valve external to the appliance.
Product & Safety Information OPERATING RESTRICTIONS • Maximum working pressure for inner (domestic water) tank is 150 psig. • Maximum working pressure for outer (primary water) tank is 45 psig. • Inner tank has factory installed Temperature & Pressure Relief Valve with an AGA rating of 100,000 Btu/hr for PG-25 and 200,000 Btu/hr for PG30/35/40/45.
Pre-Installation Items SECTION I - Pre-Installation Items This product must be installed in accordance to the following: The PERFORMANCE PLUS should be installed in a location so that any water leaking from the tank or piping connections or relief valves will not cause damage to the area surrounding the unit or any lower floors in the structure. • All applicable local, state, national and provincial codes, ordinances, regulations and laws. - • The National Fuel Gas Code NFPA54/ ANSI Z332.
Pre-Installation Items Installer should provide a solid brick or concrete foundation pad, at least 2 inches above the floor level if: BEST PRACTICES To provide serviceability to the unit it is recommended that the following clearances be maintained: - There is a potential for the floor to become flooded. The height of the foundation should be such to sufficiently elevate the unit. - The floor is dirt, sand, gravel or other loose material. Top and vent hood area - 36 inches.
Combustion Air and Venting SECTION II - Combustion Air and Venting Potential contaminating products Combustion Air Contamination WARNING If the PERFORMANCE PLUS combustion air inlet is located in any area likely to cause or contain contamination, or if products, which would contaminate the air cannot be removed, the combustion air must be repiped and terminated to an outside location.
Combustion Air and Venting Combustion Air Requirements NOTICE The PERFORMANCE PLUS can use inside air if no contaminants are present in the area of installation. If contaminants are likely to be present in the area of installation, outside air must be piped directly to the unit as referenced in Section VI Venting and Combustion Air Piping. The air openings must be sized to handle the requirements of all appliances and air movers (exhaust fans, etc.) contained in the same space using the same air supply.
Combustion Air and Venting - Combining spaces on the same story. Each opening shall have a minimum free area of 1 sq. in./1000 Btu/hr of the total input rating of all gas utilization equipment in the space, but not less than 100 sq. inches. One opening shall commence within 12 inches of the top, and one opening shall commence within 12 inches of the bottom of the enclosure. - Combining spaces in different stories.
Combustion Air and Venting Combination of Indoor and Outdoor Combustion Air Indoor Openings: Where used, openings connecting the interior spaces shall comply with the Indoor Combustion Air section on page 8. Outdoor Opening(s) Location. Outdoor opening(s) shall be located in accordance with the Outdoor Combustion Air section. Outdoor Opening(s) Size. Outdoor opening(s) shall be calculated in accordance with the following: Fig.
Combustion Air and Venting Removal of an Existing Boiler f rom a Common Vent System 4. Place in operation the first appliance being inspected that is connected to the common vent system. The remaining appliances should not be in operation. Follow the appliance’s lighting instructions and adjust the thermostat to allow the appliance to operate continuously.
Unit Preparation SECTION III - Unit Preparation 3. On the outlet flange of the circulator pipe install a 1” NPT nipple and shut-off valve. Use pipe dope sparingly to allow removal of the fittings upon completion of the test. Handling Instructions The PERFORMANCE PLUS is generally easier to handle and maneuver once removed from the shipping carton and pallet.
Unit Preparation Completion of Hydrostatic Test and Draining WARNING 1. Disconnect the fill hose from the fresh water source and direct the hose to a suitable place of drainage. Do not leave the unit unattended while pressurized. A cold water fill could expand and cause excessive pressure, resulting in severe personal injury, death or substantial property damage. 7. Ensure constant gauge pressure has been maintained throughout the 10 minute test. Check for leaks at all fitting joints. Repair if found.
Domestic Piping SECTION IV - Domestic Piping CAUTION General Piping Requirements • All plumbing must meet or exceed all local, state and national plumbing codes. • Use pipe dope or tape suitable for potable water. • Use isolation valves to isolate system components. • The Temperature / Pressure relief valve is not intended for constant duty, such as relief of pressure due to normal thermal expansion.
Domestic Piping The installer must install discharge piping onto the T&P relief valve. The discharge piping must be: • Made of material serviceable for temperatures of 250ºF or greater. • Directed so that any hot water discharge flows away from all persons. • Directed to a suitable place of drainage. • Installed as to allow complete draining of the T&P relief valve and the discharge piping. • WARNING DO NOT install any valves between the T&P relief valve and the discharge piping.
Domestic Piping 3. Solder the U-Tube Assembly onto the adapter. (See Fig. 5) Multiple Units Installation For applications using multiple units the domestic piping should be piped using a balanced manifold arrangement. 4. Once the adapter has suff i c i e n t l y cooled, re-insert the check valve assembly making sure of orientation and reconnect onto the mixing valve.
Domestic Piping TR/SMART Series Application The primary piping to the TR/SMART Series tank must comply with the piping methods details in SECTION V - Primary Piping or with other recognized piping methods. For applications requiring large volumes of domestic hot water over an extended period, the installer may include a Triangle Tube TR/SMART Indirect Water Heater in conjunction with the PERFORMANCE PLUS. (See Fig.
Domestic Piping Fig. 7: Fig. 8: 1. 2. 3. 4. Note: All shut off valves shown in this figure must be closed when siphon draining the PERFORMANCE PLUS PERFORMANCE PLUS With Recirculation Multiple Units Installation With Recirculation Mixing valve with check valve Flow check valve Shut off valve Backflow preventer or pressure reducing valve* 6. 7. 8. 9.
Domestic Piping Fig. 9 : PERFORMANCE PLUS with Storage Tank Fig. 10: PERFORMANCE PLUS with TR/SMART Indirect Water Heater 1. 2. 3. 4. Mixing valve with check valve Flow check valve Shut off valve Backflow preventer or pressure reducing valve* 6. 7. 8. 9.
Primary Piping SECTION V - Primary Piping NOTICE General Piping Requirements To prevent potential outer tank failures the primary system piping must be a “closed” loop system to avoid any oxygen contamination of the boiler water. Low Water Cutoff Device - The PERFORMANCE PLUS is equipped with a factory installed pressure switch style Low Water Cut Off device. - The minimum operating system pressure allowable with this device is 10 psig.
Primary Piping For proper operation of the expansion tank and system, remove the factory installed automatic air vent from the PERFORMANCE PLUS and plug the connection. (See Item 10, Fig. 46 page 68) System Piping - Zone Circulators Connect the PERFORMANCE PLUS to the system piping as shown in Fig. 12 page 24 when zoning with zone circulators. The circulator supplied with the PERFORMANCE PLUS should not be used for a heat zone. It must supply only the primary loop.
Primary Piping System Piping - Radiant Heating with Mixing Valve personal injury, death or substantial property damage. Connect the PERFORMANCE PLUS to the system piping as shown with a radiant system using a thermostatic mixing valve as shown in Fig. 14 page 25. The primary / secondary piping ensures sufficient return temperature to the PERFORMANCE PLUS. Size the system piping and circulator to provide the flow needed for the radiant system. To control the zone circulators reference Figure 34, page 45.
Primary Piping Near Appliance Piping Fig. 11 : Near Appliance Primary Piping with a Diaphragm Type Expansion Tank Fig. 11A : Near Appliance Primary Piping with Closed Type Expansion Tank Fig. 11B : Near Appliance Primary Piping with Diaphragm - Type Expansion Tank (Alternate Circulator Location) 1. Appliance Circulator 2. Shut Off valve 3. Expansion tank 4. Auto fill valve 5. Tank fitting 6. Automatic air vent 23 7. Air Separator 8.
Primary Piping • Size primary manifold for total flow of all circulators • Size each circulator to individual circuit requirements • Install balancing valves to adjust flow to distribute heat to all zones • Install balancing valves to adjust flow to distribute heat to all zones Fig. 12: Primary piping - Zoning with Circulators Fig. 13: Primary Piping - Zoning with Zone Valves 1. 2. 3. 4. Appliance circulator Shut-off valves Flow check valve Zone valve 5. System purge valve 6.
Primary Piping Note: Adjust system temperature valve to establish maximum supply/return temperature differential of 30ºF and a minimum 130ºF return water temperature to the PERFORMANCE PLUS Fig. 14: Primary Piping - Low Temperature Radiant System Fig. 15: Primary Piping - Multi Temperature System 1. 2. 3. 4. Circulator Shut Off valves Flow check valve Zone valve 5. 6. 7. 8.
Primary Piping 26
Venting and Combustion Air Installation SECTION VI - Venting and Combustion Air Installation 2. The installer must consider the following when determining the location of the vent termination: - Locate the vent termination where flue vapors will not damage surrounding shrubs, plants or air conditioning equipment or be objectionable to the homeowner. - The flue products will form a noticeable plume as they condense in colder air.
Venting and Combustion Air Installation Category IV Vent Termination Clearances NOTICE Maintain the following clearances to the vent termination: - At least 6 feet from adjacent walls - No closer than 5 feet below roof overhangs - At least 7 feet above any public walkways - At least 3 feet above any forced air intake (does not include the combustion air inlet) within 10 feet.
Venting and Combustion Air Installation - Must maintain 4 feet of clearance below and horizontally from doors and windows. See dimension A Fig. 17. applications using the Horizontal Wall Thimble kit . See Fig. 23 page 35 If the venting application is a vertical direct or non-direct vent application: - The vent must terminate at least 3 feet above the roof and at least 2 feet higher than any portion of the building within 10 feet. a.
Venting and Combustion Air Installation Venting Option - Direct Vent / Vertical The installer should consider the following when choosing this vent option: In this vent application the PERFORMANCE PLUS is vented vertically through the roof or an unused chimney using the Triangle Tube Concentric Vertical Vent Kit. a. The vent system must contain a condensate trap located near the unit as shown in Fig. 21 page 34. b.
Venting and Combustion Air Installation Venting Option - Direct Vent / Horizontal e. For a zero clearance concentric termination of the vent and combustion air refer to the Horizontal Concentric, Horizontal Single Wall Vent or Horizontal Wall Thimble Kits. In this vent application the PERFORMANCE PLUS is vented horizontally through a wall using only approved 3-inch stainless steel vent material and using outside air for combustion.
Venting and Combustion Air Installation Excessive Horizontal Vent Runs WARNING If maintaining the 1/4 inch per foot pitch requirement creates clearance problems with structural obstacles, i.e. low ceilings, the installer may opt to installing the vent in a manner that pitches up to a high point from the unit and then pitches away from the high point to the vent termination.
Venting and Combustion Air Installation - NOTICE For each elbow included in the system, the maximum allowable linear length must be reduced as follows: The maximum equivalent length is the total length of the venting and the combustion air inlet combined. This includes termination fittings. • Each 90º elbow within the system is the equivalent of 10 linear feet. • Each 45º elbow within the system is the equivalent of 5 linear feet.
Venting and Combustion Air Installation Fig. 21: Standard Horizontal Venting Installation Fig. 22: Horizontal - Direct Vent Combination Fig. 22A: Concentric Horizontal Vent Installation Fig.
Venting and Combustion Air Installation Fig. 23: Location of Air Inlet Termination Fig. 24A: Vent Termination Combustible Wall Fig.
Venting and Combustion Air Installation 36
Gas Piping SECTION VII - Gas Piping WARNING Gas Supply Piping Connection Do not check for gas leaks with an open flame. Use a gas detection device or bubble test. Failure to check for gas leaks can cause severe personal injury, death or substantial property damage. NOTICE The gas supply piping must be installed in accordance to all applicable local, state and national codes and utility requirements. 5. Use pipe dope compatible with natural and propane gases.
Gas Piping NATURAL GAS 2. Install 100% lockup gas pressure regulator in the gas supply line if inlet pressure can exceed 13”w.c at any time. Adjust the lockup pressure regulator for 13”w.c maximum. Pipe Sizing - Natural Gas 1. Refer to Table 3 for pipe length and diameter requirements. Based on rated PERFORMANCE PLUS input (divide by 1,000 to obtain cubic feet per hour). - Table 3 is based on Natural Gas with a specific gravity of 0.60 and a pressure drop through the gas piping of 0.30”w.c..
Gas Piping PROPANE GAS WARNING Pipe Sizing - Propane Gas DO NOT adjust or attempt to measure gas valve outlet pressure. The gas valve is factory-set for the correct outlet pressure. This setting is suitable for natural gas and propane and requires no field adjustment. Attempts by the installer to adjust or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal i n j u ry, death or substantial pro p e rt y damage. 1.
Internal Wiring SECTION VIII - Internal Wiring General Requirements WARNING ELECTRICAL SHOCK HAZARD. For your safety, disconnect electrical power supply to the unit before servicing or making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death. NOTICE All electrical contacts shown in Figures 30 & 31 pages 41 & 42 do not have electrical power applied. Shown as “offshelf” condition. Fig.
Internal Wiring Fig.
Internal Wiring Fig.
External Wiring SECTION IX - External Wiring areas of draft, lighting fixtures and fireplaces. Installation Compliance 4. Set the thermostat anticipator (if applicable) as follows: All field wiring made during installation must comply with: - - National Electrical Code NFPA 70 and any other national, state, provincial or local codes or requirements. - Set for 0.2 amps when wired directly to the Room Thermostat Snap-set.
External Wiring 4 Wire Zone Valve 3 Wire Zone Valve *Use isolation relay on 3-wire zone valve with non-isolated end switch. Transformer and the PERFORMANCE PLUS control can burn out if isolation relay is not used. Fig.
External Wiring Fig. 34: Field wiring with zone circulators.
External Wiring Fig. 35: Typical Zone Relay Panel Wiring Fig.
Start-Up Preparations SECTION X - Start Up Preparation Check System Chemistry and Domestic NOTICE Water Any water conditioning system must be installed and maintained in accordance with the water c o n d i t i o n e r’s m a n u f a c t u re r’s specifications and within the operating guidelines of the PERFORMANCE PLUS. WARNING Do not use petroleum-base cleaning or sealing compounds in the primary system.
Start-Up Preparations Filling the Inner (Domestic) Tank and System NOTICE System water including additives must be practically non-toxic, having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Products. WARNING Proceed with filling instructions for the inner and outer tanks only after ensuring the water meets the requirements listed in this installation manual. Failure to comply could result in damage and improper operation of the unit.
Start-Up Preparations 3. Fill the outer tank to correct system pressure. Correct pressure will vary with each application. Check For Gas Leaks WARNING Prior to start-up and during initial operation, smell near the floor and around the unit for gas odorant or any unusual odor. Do not proceed with the start-up if there is any indication of a gas leak. Any leaks found must be repaired immediately. NOTICE Typical residential system fill pressure is 12 psi.
Start-Up Preparations Verify Correct Pressure Switch Check Thermostat Circuit 1. Remove the burner hood and verify the burner pressure switch setting. - Unplug the Room Thermostat Snap-set located on the rear of the unit. 2. Check and compare the color of the outline on the pressure switch label to Table 3 page 49. - Connect a voltmeter across the end terminals of the male half of the Room Thermostat Snap-set.
Start-Up Procedures SECTION XI - Start-Up Procedures 2. Read and follow the Operating Instructions outlined on page 52. Final Checks Before Start-up Verify the PERFORMANCE PLUS and the primary and domestic systems are full of water and all system components are correctly set for operation. If PERFORMANCE PLUS Does Not Start Correctly 1. Check for loose electrical connections, blown fuse or open service switch.
Start-Up Procedures FOR YOUR SAFETY READ BEFORE LIGHTING WARNING The following instructions must be followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance is equipped with an electronic ignition system. Do not attempt to light the burner by hand. B. BEFORE OPERATING, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
Start-Up Procedures WARNING WARNING Venting system must be sealed gas-tight to prevent flue gas spillage and potential carbon monoxide emissions, which will result in severe personal injury or death. A combustion test must be performed after any adjustments are made. Allow the unit to operate for approximately 10 minutes after adjustment before measuring any combustion levels. Failure to comply with these pro c e d u res could result in severe personal injury, death or substantial property damage.
Temperature Limits NOTICE SECTION XII - Temperature Limits To adjust the thermostat settings: DANGER Studies have indicated that dangerous bacteria can form in the potable water distribution system if certain minimum water temperatures are not maintained. For prevention of this, it is recommended that the Secondary Thermostat be set as shown in Figure 38 and maintained at 130ºF to 140ºF.
Temperature Limits Setting the Thermostatic Mixing Valve NOTICE To calibrate the outlet temperature , allow the water to run for approximately 2 minutes and measure the water with a thermometer. To adjust the valve setting, rotate the knob clockwise to decrease the water temperature or counter-clockwise to increase the water temperature. NOTICE The thermostatic mixing valve controls the outlet hot water temperature delivered to the faucets.
Check-Out Procedures SECTION XIII- Check-Out Procedures 13”w.c during non-flow conditions for natural and propane. NOTICE Perform the following check-out procedures as outlined and check off items as completed. When procedures are completed, the installer should complete the installation record on page 57. Check-out Procedures Both inner and outer tanks filled with water. Water chemistry checked and verified as outlined on page 47.
Installation Record SECTION XIV - Installation Record 57
Maintenance Schedule SECTION XV - Maintenance Schedule Owner Maintenance Service Technician Daily: At least on an annual basis the following maintenance should be performed by a qualified service technician: • Check the area around the unit. • Check the combustion air inlet and ventilation openings for blockage. • Check the temperature/pressure gauge. General • Attend to any reported problems. • Inspect the interior of the combustion chamber; clean and vacuum if necessary.
Maintenance Procedures SECTION XVI - Maintenance Procedures Verify that air used for combustion is free of any contaminates. Refer to the list of potential materials listed on page 7 of this manual. If any of these products are in the room from which the unit takes its combustion air, they must be removed immediately or the combustion air intake must be relocated to another area.
Maintenance Procedures Check Combustion/ Ventilation Air Openings Inspect air vent and air separators in the system. Remove the caps on automatic air vents and briefly depress the valve stem to flush vent. Replace the cap when completed. Ensure vents do not leak, replace any leaking vents. Verify that all combustion air and ventilation openings to the mechanical room or building are open and unobstructed. Check the operation and wiring of any automatic ventilation dampers.
Maintenance Procedures Check Boiler Relief Valve Inspection of Ignition Electrode Inspect the relief valve and lift the lever to verify flow at least annually or as recommended on the warning tag of the valve. Remove the ignition electrode from the burner mounting plate. Remove any white oxides accumulated on the electrode using fine grit sandpaper or steel wool. If the electrode does not clean to a satisfactory condition, replace the ignitor.
Maintenance Procedures Check Burner Flame Flame Signal Inspect the burner flame through the observation port on the burner mounting plate. The flame signal should be at least 0.6µ Α. Refer to the PERFORMANCE PLUS Trouble-shooting Guide for information on checking the flame signal. If flame pattern is not fully blue and covers the entire burner surface, shut the unit down and allow it to cool thoroughly. Check the ignitor for fouling or damaged insulation if a low flame signal is read.
Replacement Parts SECTION XVII - Replacement Parts NOTICE Replacement Parts Refer to pages 64 and 67 for description and replacement part numbers. WARNING Replacement parts can be ordered and purchased through a local Triangle Tube distributor. When ordering parts, specify the Model Number and Serial Number. Include a description of the part and a replacement part number. Using modified or other manufacturer parts will not be covered by warranty and may damage or cause improper function of the unit.
Replacement Parts Fig. 40: Jacket Components Item Part No.
Replacement Parts Fig. 41: Control Panel Components Item Part No.
Replacement Parts Fig. 42: Electrical Panel Components Item Part No. 12A PGRKIT19 12B PGRKIT 19 13 PGRKIT18 Part No.
Replacement Parts Fig.
Specifications Fig. 44: Side View Fig. 45: Rear View Fig. 46: Top View 1. Primary circuit, ø 1” NPT 2. Primary circuit drain valve connection, ø 1/2” NPT 3. Domestic temperature/pressure relief valve (150 psi), ø 3/4” NPT 4. Primary circuit & pressure relief valve (30 psi), ø 1” NPT 5. Domestic cold water inlet, ø 3/4” NPT 6. Hot water outlet & secondary thermostat sensor, ø 3/4” NPT 7. Manual reset safety sensor & pressure indicator sensor, ø 3/4” NPT 8.
Specifications Table 6: Dimensional Data Type Input Nat. Gas Inner Tank Capacity Outer Tank Capacity Dimensions A B C Vent outlet size TP Valve (domestic) Domestic water Primary connection Drain Empty weight Heat exchanger surface Btu/hr Gal Gal Inches ø ø ø ø lb Sq. Ft. PG PLUS-25 100,000 17 20 PG PLUS-30 120,000 17 20 PG PLUS-35 140,000 17 20 PG PLUS-40 165,000 22 18 PG PLUS-45 199,000 22 18 59 54 54.5 3 3/4" 3/4" 1" 1/2" 345 17 59 54 54.5 3 3/4" 3/4" 1" 1/2" 345 17 59 54 54.
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