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INSTALLATION & MAINTENANCE MANUAL
POWER VT PLUS WATER HEATER
MODELS (40, 50, 75, 90, 100) LX 125 A-PVIF
MODELS (50, 75, 90, 100) LX (250, 300) A-PVIF
Installation and service must be performed by a qualified service installer, service agency or the gas supplier.
IMPORTANT: THIS MANUAL CONTAINS INFORMATION REQUIRED FOR INSTALLATION, OPERATION AND
MAINTENANCE OF THIS EQUIPMENT. READ AND FOLLOW THE INFORMATION IN THIS MANUAL AND ALL OTHER
PROVIDED INSTRUCTIONS, LABELS AND MARKINGS
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TABLE OF CONTENTS 1. Safety Considerations 2. Standard Features and Equipment 2.1 Performance 2.2 Pressure Vessel 2.3 Heat Exchanger 2.4 Code and Standards 2.5 Burner, Operating Controls & Safeties 2.6 Warranty and Service Policy (see warranty and service policy for details) 2.7 Miscellaneous 3. Product Descriptions 4. Water Heater Installation 4.1 Checking Equipment Before You Install 4.2 Codes 4.3 Electrical Requirements 4.4 Handling and Location 4.5 Service Clea
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10. Operating and Safety Controls 10.1 Temperature and Pressure Relief Valve(s) 10.2 Operating Temperature Control 10.3 High Water Temperature Limit Control 10.4 Cathodic Protection 10.5 Electronic Low Water Cut-off (optional) 11. TEMPTRAC Electronic Controller Panel 11.1 Principal of Operation 11.2 Upper LED Readout 11.3 Lower LED Readout 11.4 Control Buttons 11.5 To View the Setpoint 11.6 To Change the Setpoint 11.7 To Change Other Parameters 11.8 LED Display Alarm
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1 SAFETY CONSIDERATIONS WARNING: If the information in the supplied manual(s) is not followed exactly, a fire, explosion or exposure to hazardous materials may result, causing property damage, personal injury or loss of life. FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electric switch; do not use any phone in
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IMPORTANT SAFETY NOTE It takes only 5 seconds of skin contact with 140°F water to cause a second degree burn! You must protect against high water temperatures at all lavatories, tubs, showers and other points of hot water contact. Accidental scalding from high water temperatures is a greater risk in some types of installations. Some examples are: HOMES FOR THE MENTALLY HANDICAPPED HOMES FOR THE PHYSICALLY HANDICAPPED HOSPITALS AND NURSING HOMES ELDER CARE FACILITIES AND RES
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2 STANDARD FEATURES AND EQUIPMENT 2.1 Performance 98% thermal efficiency at full fire from 40° to 140°F Up to 99% thermal efficiency with modulation < 20 ppm NOx (399 to 900 MBH) Ducts direct combustion air up to 100 equivalent feet through 6-inch diameter material (requires UL approved vent cap, see optional equipment list) Vents up to 100 equivalent feet through 6-inch diameter material 2.2 Pressure Vessel AquaPLEX tank (unlined duplex alloy) Storage tank ASME st
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3 PRODUCT DESCRIPTION Component, Controls and Connection Locations (Locations May Vary) 125 SERIES 7 PV500-44U 06/12
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250 SERIES 8 PV500-44U 06/12
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300 SERIES 9 PV500-44U 06/12
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4 WATER HEATER INSTALLATION 4.1 Checking Equipment Before You Install Inspect the unit completely upon receipt from the freight carrier before signing the bill of lading. Inspect the appliance and all accompanying parts for signs of impact or mishandling. Verify the total number of pieces shown on packing slips with those actually received. Contact the freight carrier immediately if any damage or shortage is detected. 4.2 Codes The equipment must be installed in accordance with those
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8. Do not install on carpet or other combustible floor coverings. If installation over a combustible floor is required, follow these guidelines: Use a base of hollow clay tile or concrete blocks from 8" to 12" thick and extending 24" beyond the sides. Place the blocks in line so that the holes line up horizontally to provide a clear passage through the blocks. Install 1/2” fireproof millboard with a 20-gage sheet metal cover over the block base. Center the unit on the base.
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SINGLE WATER PIPING SINGLE STORAGE WATER HEATER WITH SUPPLEMENTAL STORAGE TANK 12 PV500-44U 06/12
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TWO WATER HEATERS WITH REVERSE RETURN PIPING 6 CONDENSATE DRAIN, TRAP & DISPOSAL The POWER VT PLUS water heater is designed to produce significant amounts of condensate because of its high efficiency. Condensate occurs naturally when water vapor in combustion gases is cooled below the dew point. Two 3/4” NPT drain connections are provided. A trap with three inches of standing water below the bottom of the heater (3” above the base of the I-Beam skids), and no higher than the bottom o
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Condensate Piping and Trap with Optional Condensate Neutralizer 6.1 Condensate Neutralization System (optional) Although only slightly acidic (3-5 PH), condensate can be routed through an optional Condensate Neutralization System (see image below) to become pH neutral allowing for disposal into any drain or sewer system without concern for corrosion. Condensate slowly flows through a neutralization bath filled with renewable crushed limestone becoming neutralized thus avoiding chemica
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7 GAS SUPPLY AND PIPING Verify that the type of gas specified on rating plate is supplied to the unit. This unit is orificed for operation up to 2000 feet altitude. Appliance Btuh output derates 4% per 1000 feet elevation above sea level. Consult Factory for installations above 2000 feet elevation. 7.1 Gas Train and Controls Certification NOTE: The gas train and controls assembly provided on this unit have been tested under the applicable American National Standard to comply with safet
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Use this corrected total distance from the meter for determining the suggested pipe size in the “Single Unit Installation Suggested Gas Pipe Size” table. SINGLE UNIT INSTALLATION SUGGESTED PIPE SIZE Maximum Capacity for Natural Gas* Equivalent Feet MBTU/HR Based on 0.5" W.C. Pressure Drop** From Meter 1-1/4" 1-1/2" 2" 2½" 3" 4" 25 860 1320 2475 3900 7000 - 40 660 990 1900 3000 5300 - 60 - 810 1520 2400 4300 - 80 - 690 1300 2050 3700 - 100 - 620 1150 1850 3250 6700 125 - - 1020 165
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7.7 Gas Connection 1. Safe operation of unit requires adequate gas supply with the required static and dynamic (flow) pressures. Actual piping selection depends on many variables that must be carefully considered by the gas piping system designer. Do not select gas pipe sizes based only on the supplied tables. These tables are for use by the gas piping system designer as a reference in checking pipe size selections. 2. Gas pipe size may be larger than heater connection. 3. Installation of
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8.2 Maximum Allowed Remote Combustion Air Inlet Length (Equivalent Length) A vertical or horizontal remote air inlet system can be connected to this appliance without modification. The maximum length of field supplied single wall pipe, such as galvanized ventilation pipe, is shown in the chart below titled Maximum Air Inlet Duct Equivalent Length. Use metal tape or RTV sealant to seal each pipe joint. Maximum Air Inlet Duct Equivalent Length Duct Size 6” Duct 7” Duct 8” Duct 9” Duct Max
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Vertical Remote Air Horizontal Remote Air 8.5 Remote Air Consideration for Combined Remote Air Ducting Each water heater MUST have separate intake piping. Consult factory for common air intake pipe sizing. 9 VENTING 9.1 Venting the Power VT Plus “SANI” models: Power VT Plus models with “SANI” in the model number are designed for operation only with stainless steel venting listed by UL, ULC, ETL or CSA for Category IV, positive pressure, gas appliance venting. Installation requir
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WARNING: Do not vent this water heater into an existing or traditional gas vent or chimney or combine the vent with any other appliance. Such venting could result in failure of the venting system and/or exposure to carbon monoxide which can result in property damage, personal injury or death. 9.3 Maximum Category IV Vent Length (Equivalent Length) A vertical or horizontal remote Category IV vent system must be used with this appliance. The maximum length of field supplied Category IV ven
