Watts AERCO INN 2000 Installation, Operation And Maintenance Manual
Watts AERCO INN 2000 Installation, Operation And Maintenance Manual

Watts AERCO INN 2000 Installation, Operation And Maintenance Manual

Innovation water heaters with edge [ii] controller
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Installation, Operation and Maintenance Manual
Innovation Water Heaters
with Edge
Natural Gas and Propane Gas Modulating &
Condensing Water Heater
Models INN 2000 & INN 1600
WARNING: If the information in these instructions is not
followed exactly, a fire or explosion may result causing
property damage, personal injury, or death.
Do not store or use gasoline or other flammable vapors
and 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 electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
Disclaimer:
The information contained in this manual is subject to change without notice
from AERCO International, Inc. AERCO makes no warranty of any kind with
respect to this material, including, but not limited to, implied warranties of
merchantability and fitness for a particular application. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so the above
limitation may not apply. AERCO is not liable for errors appearing in this manual,
not for incidental or consequential damages occurring in connection with the
furnishing, performance, or use of these materials.
OMM-0175
3/20/2025
®
[ii] Controller
Heating and Hot Water Solutions
USA: T: (845) 580-
(800) 526-
-
-Fri, 8 am - 5 pm EST
© 2025 AERCO

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Summary of Contents for Watts AERCO INN 2000

  • Page 1 Installation, Operation and Maintenance Manual Innovation Water Heaters ® with Edge [ii] Controller Natural Gas and Propane Gas Modulating & Condensing Water Heater Models INN 2000 & INN 1600 WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.
  • Page 2 Innovation 1600-2000 - Installation, Operation and Maintenance 0 TABLE OF CONTENTS IMPORTANT Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in death, serious personal injury, property damage, or damage to the equipment. Keep this Manual for future reference.
  • Page 3: Table Of Contents

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 TABLE OF CONTENTS TABLE OF CONTENTS FOREWORD ........................5 SECTION 1: SAFETY PRECAUTIONS ..................8 1.1 WARNINGS & CAUTIONS ....................8 1.2 EMERGENCY SHUTDOWN ....................9 1.3 PROLONGED SHUTDOWN ....................9 1.4 IMPORTANT REQUIREMENTS FOR MASSACHUSETTS INSTALLATIONS....10 SECTION 2: INSTALLATION ....................
  • Page 4 Innovation 1600-2000 - Installation, Operation and Maintenance 0 TABLE OF CONTENTS 6.12 SAFETY PRESSURE RELIEF VALVE TEST ..............64 SECTION 7: MAINTENANCE ....................65 7.1 MAINTENANCE SCHEDULE ....................65 7.2 WATER QUALITY GUIDELINES ..................66 7.3 IGNITER-INJECTOR ......................66 7.4 FLAME DETECTOR ......................67 7.5 O SENSOR MAINTENANCE .....................67 7.6 SAFETY DEVICE TESTING ....................68 7.7 BURNER INSPECTION ......................68...
  • Page 5: Foreword

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 FOREWORD FOREWORD The Innovation 1600-2000 modulating and condensing water heater represents a true industry advance to meet the needs of today's energy and environmental concerns. Designed for use with natural gas or propane gas in any closed loop hydronic system, the Innovation modulating capability relates energy input directly to fluctuating system loads.
  • Page 6 Innovation 1600-2000 - Installation, Operation and Maintenance 0 FOREWORD Technical Terminology Meanings A (Amp) Ampere ADDR Address AGND Analog Ground ALRM Alarm ANSI American National Standards Institute ASME American Society of Mechanical Engineers Auxiliary Building Automation System, often used interchangeably with EMS Symbol rate, or the number of distinct symbol changes (signaling events) transmitted Baud Rate per second.
  • Page 7 Innovation 1600-2000 - Installation, Operation and Maintenance 0 FOREWORD Technical Terminology Meanings 1000 BTUs per Hour Modbus® A serial, half-duplex data transmission protocol developed by AEG Modicon NC (N.C.) Normally Closed NO (N.O.) Normally Open Nitrogen Oxide National Pipe Thread Oxygen O.D.
  • Page 8: Section 1: Safety Precautions

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 1: SAFETY PRECAUTIONS SECTION 1: SAFETY PRECAUTIONS 1.1 Warnings & Cautions Installers and operating personnel MUST observe all safety regulations at all times. The following warnings and cautions are general and must be given the same attention as specific precautions included in these instructions.
  • Page 9: Emergency Shutdown

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 1: SAFETY PRECAUTIONS 1.2 Emergency Shutdown If overheating occurs or the gas supply fails to shut off, close the manual shutoff valve (Figure 1-1) on the outside of the unit. NOTE: The Installer must identify and indicate the location of the emergency shutdown manual gas valve to operating personnel.
  • Page 10: Important Requirements For Massachusetts Installations

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 1: SAFETY PRECAUTIONS 1.4 Important Requirements for Massachusetts Installations Extracted Information From 248 CMR 5.08 (2) Installations within the Commonwealth of Massachusetts must conform to the following requirements: • Water Heater must be installed by a plumber or a gas fitter licensed within the Commonwealth of Massachusetts. •...
  • Page 11: Section 2: Installation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION SECTION 2: INSTALLATION 2.1 Receiving The Unit Each Innovation Water Heater is shipped as a single, crated unit. The shipping weight for the Innovation 1600-2000 is approximately 1,850 lbs. (839 kg). The unit must be moved with proper rigging equipment for safety and to avoid damage.
  • Page 12 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.3.1 Installation Clearances The unit must be installed with the prescribed clearances for service as shown in Figure 2-1. The minimum required clearance dimensions are listed below for all models. If Local Building Codes require additional clearances, those codes shall take precedence.
  • Page 13 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Figure 2-2: Innovation Zero-Side Clearance Kit (P/N# 58079-1) ⚠ W A R N I N G ! Keep unit area clear and free from all combustible materials and flammable vapors or liquids. FOR MASSACHUSETTS ONLY: For Massachusetts installations, the unit must be installed by a plumber or gas-fitter licensed within the Commonwealth of Massachusetts.
  • Page 14 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Figure 2-3: Anchor Bolt Locations 2.3.3 Housekeeping Pad Requirements To ensure proper condensate drainage, the unit must be installed on a level concrete assembly is located over the pad, as shown below. The minimum thickness of the concrete pad depends on two factors: •...
  • Page 15: Lifting Provisions

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Water Heater Condensate Housekeeping Trap Neutralizer Support Figure 2-4: Condensate Neutralizer Tank Installation 2.4 Lifting Provisions ⚠ W A R N I N G ! DO NOT attempt to lift or move Water Heater using the gas train or blower. Three lifting lugs are attached to the top of the heat exchanger, as shown below.
  • Page 16: Piping Connections

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.5 Piping Connections Make sure the mating surfaces are thoroughly clean, before connecting the hot water outlet and return-water inlets to building piping. Innovation Water Heaters have the following inlets and outlets: •...
  • Page 17: Recirculation Pump

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.5.1 Internal Recirculation Water Loop The internal Recirculation Water Loop assembly is located at the rear of the unit (Figure 2-6). This assembly contains a recirculation pump that connects the upper hot water outlet to the lower (cold) water inlet to heat exchanger.
  • Page 18 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.5.2 Test Hose Connection A test hose must connect from the drain valve on the hot water outlet to the floor drain. This is required for startup and testing. The test hose diameter should be a minimum of 3/4" (1.9 cm). WATER OUTLET DRAIN VALVE...
  • Page 19: Temperature And Pressure Relief Valve Installation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.5.4 Sequencing Isolation Valve Innovation 1600-2000 Water Heaters with Water Heater Management (WHM) will arrive with the actuator-controlled Sequencing Isolation Valve, packed separately within the shipping container. If installation is required, see Section 2.13: Sequencing Isolation Valve Installation .
  • Page 20 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION NOTE: The following guidelines must be observed to ensure proper condensate drainage: • Condensate trap inlet must be level with or lower than the exhaust manifold drain port. • The base of the condensate trap must be supported to ensure that it is level (horizontal). •...
  • Page 21: Gas Supply Piping

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.8 Gas Supply Piping ⚠ W A R N I N G ! Never use matches, candles, flames, or other sources of ignition to check for gas leaks. C A U T I O N ! Many of the soaps used for gas pipe leak testing are corrosive to metals.
  • Page 22 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.8.2 External Gas Supply Regulator An external gas pressure regulator is required on the gas inlet piping under most conditions (see, below). Regulators must conform to the specifications in the following table: INN 2000/1600 Lock-Up Regulator Sizing Required Volume /HR)
  • Page 23: Ac Electrical Power Wiring

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.8.3 Massachusetts Installations Only For Massachusetts installations, a mandatory external gas supply regulator must be positioned as shown in Figure 2-12. The gas supply regulator must be properly vented outdoors. 2.8.4 Manual Gas Shutoff Valve A manual shut-off valve must be installed in the gas line upstream from the unit, as shown.
  • Page 24: Field Control Wiring I/O Board

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.9.2 Electrical Power Panel Internal Components Remove the front panel to access the main Power Panel. Run the electrical service through the opening above the Power Panel and make the connections to the Power Breaker in accordance with the Power Panel cover label.
  • Page 25 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION I/O BOARD SPARK MONITOR POWER HARNESS FROM SHELL 63232 HARNESS 63216-2 CONNECTOR J24 CONNECTOR J9 40 PIN RIBBON I/O HARNESS 63220 LOW WATER CUTOFF JUMPER 30 PIN RIBBON I/O HARNESS 63221 CONNECTOR J1 CONNECTOR J2 CONNECTOR J8...
  • Page 26 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Connector Strip J3 Terminals Pin # Name Description Outside Temp + Reserved for future use. Outside Temp - Shield Connection to the shield from any cable. Connection to the Supply Header temperature sensor (2 wire sensor P/N 24410C, or 4 wire sensor P/N 61058C) for: Supply Header + •...
  • Page 27 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Connector Strip J5 Terminals Pin # Name Description • Spare Analog In 3 - Swing V1 feedback • Spare Analog In 1 + Swing V2 Feedback • Spare Analog In 1 - VS Pump Feedback (Variable Speed Pump Feedback) •...
  • Page 28: Flue Gas Vent Installation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Connector Strip J7 Terminals Pin # Name Description Connection to an auxiliary device enable/disable signal, such as: • • Tank Pump 2 System Pump V2/Spare 1 Relay N.O. • • Summer Pump Pump 2 •...
  • Page 29 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 3. Set parameter to match your vent material: PVC, CPVC, Polypro or Stainless Steel. This sets the exhaust temperature limits. Note, PVC is not allowed in Massachusetts. Because the unit is capable of discharging low temperature exhaust gases, the flue must be pitched back towards the unit a minimum of 1/4"...
  • Page 30: Combustion Air

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION 2.12 Combustion Air Innovation Venting and Combustion Air Design Guide, must TAG-0102 be consulted before any inlet air venting is designed or installed. Air supply is a direct requirement of ANSI 223.1, NFPA-54, CSA B149.1 and local codes.
  • Page 31: Water Heater Pump Relay

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION The implementation of WHM, and the installation and use of this valve, is optional. However, when WHM is implemented, use of this valve is strongly recommended. Installation consists of installing the Sequencing Valve in the hot water outlet pipe, and then connecting it to the pre-wired connector on the shell harness, as described below.
  • Page 32: Next Steps

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 2: INSTALLATION Figure 2-20: Water Heater Pump Relay The Pump Off Delay feature allows the user to keep the pump running for up to 30 minutes after the Water Heater has shut down and the demand is satisfied. To enable this feature, go to Main Menu →...
  • Page 33: Section 3: Edge Controller Operation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 3: EDGE CONTROLLER OPERATION SECTION 3: EDGE CONTROLLER OPERATION This section provides a brief outline of how to gain access to the Water Heater s Edge Controller functionality. Full instructions for using the Edge [ii] Controller to setup, configure and Innovation 1600-2000 Water Heaters are included in the Edge [ii] Controller Manual (OMM-0177).
  • Page 34: Login And Password Entry

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 3: EDGE CONTROLLER OPERATION 3.1 Login And Password Entry The Edge Controller has multiple levels of password protection. Level Password Description No password The default. Many parameters are visible but “Read Only.” Allows for routine maintenance by AERCO trained technicians.
  • Page 35: Section 4: Start Sequence

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE SECTION 4: START SEQUENCE The information in this section provides a guide to starting the Innovation Water Heater using the Edge Controller. It is imperative that the initial startup of this unit be performed by factory trained personnel.
  • Page 36 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE HIGH GAS PRESSURE MANUAL SWITCH SHUT-OFF LOW GAS VALVE SSOV PRESSURE SWITCH Figure 4-1: SSOV Location 3. The Auxiliary Delay occurs for a configurable length of time and the Delayed Interlocks are closed.
  • Page 37 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE BLOWER PROOF SWITCH BLOCKED INLET SWITCH Figure 4-3: Blocked Inlet and Blower Proof Switch Purging 6. On the Ignition Sequence screen, the indicator turns grey while purging is Purge Timer underway and Figure 4-4: Ignition Sequence Screen Purging...
  • Page 38: Start/Stop Levels

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE TO BLOWER STEPPER MOTOR IGNITION VALVE POSITION DIAL AT 25% to 35% AIR IN Figure 4-5: Air/Fuel Valve in Ignition Position 8. Up to 4 seconds are allowed for ignition to be detected. The ignition circuit is turned off one second after flame is detected.
  • Page 39: Start/Stop Levels Air/Fuel & Energy Input

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE 4.3 Start/Stop Levels Air/Fuel & Energy Input The tables below show the relationship between the energy input and Air/Fuel Valve position for Natural Gas. INN 2000 Air/Fuel Valve Position NATURAL GAS Valve Position Air/Fuel Valve...
  • Page 40 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 4: START SEQUENCE The tables below show the relationship between the energy input and Air/Fuel Valve position for Propane gas. INN 2000 Air/Fuel Valve Position PROPANE Valve Position Air/Fuel Valve Energy Input Water Heater Energy on Controller Position (% Open)
  • Page 41: Section 5: Initial Start-Up

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP SECTION 5: INITIAL START-UP 5.1 Initial Start-Up Requirements • Complete installation instructions SECTION 2:, including gas supply piping, vent installation and condensate drain piping. Starting a unit without the proper piping, venting, or electrical systems can be dangerous and may void the product warranty.
  • Page 42: Tools & Instruments For Combustion Calibration

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 5.2 Tools & Instruments for Combustion Calibration To properly perform combustion calibration, the proper instruments and tools must be used and correctly attached to the unit. The following sections outline the necessary tools and instrumentation as well as their installation.
  • Page 43: Combustion Calibration

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 5.2.3 Accessing The Analyzer Probe Port If necessary, adjust the stop on the combustion analyzer probe to extend mid-way into the flue gas flow. DO NOT install probe. BUILDING RECIRCULATION WATER INLET COLD WATER INLET...
  • Page 44 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP W A R N I N G : Combustion calibration and O Trim can both alter the calibration voltage to the blower and thus interfere with each other. If O Trim is enabled and a change is made to any calibration point during combustion calibration you must make a corresponding change to the O Target, O...
  • Page 45 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP Figure 5-6: Choose NOx Requirement 9. The main Manual Combustion Calibration screen appears. It provides two methods to • Method 1: Toggle through the pre-set calibration points till you reach the desired valve position, then press Go to go to that point (left image below).
  • Page 46 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 14. With the valve position still at 100%, insert the combustion analyzer probe into the exhaust manifold probe opening (see Section 5.2.3) and allow enough time for the combustion analyzer reading to stabilize. ) reading to the O value in the Reading column.
  • Page 47 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP NATURAL GAS Final Valve Positions for INN 2000 Standard NOx Valve Position 5.6% ± 0.2% ≤20 ppm <100 ppm 5.6% ± 0.2% ≤20 ppm <100 ppm 5.6% ± 0.2% ≤20 ppm <100 ppm 5.6% ±...
  • Page 48: Over-Temperature Limit Switches

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP NOTE: If NOx readings exceed the above values, increase O up to 1% higher than the listed calibration range in the table. Record the increased O value on the Combustion Calibration sheet. 23.
  • Page 49 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP Figure 5-8: Over-Temperature Limit Switches 5.4.1 Adjusting The Automatic Reset Limit Switch Temperature 1. Power unit ON and remove the front panel to expose the Over-Temperature Limit switches. 3. Press the SET button again. The current setting stored in memory is displayed. 4.
  • Page 50: Temperature Control Calibration

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 5.4.3 Changing The Readout Between Fahrenheit And Celsius 1. Press and hold both the Increase and Decrease arrows at the same time for about 4 seconds. The display shows the temperature in Celsius and °F changes to °C. 2.
  • Page 51 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP • • Network 0-5 V 5.5.2 Minimum Load Adjustment With the unit in operation, check the temperature control at minimum load as described below. 1. Go to: Advanced Setup → Performance → Temperature Control → FFWD Settings. Figure 5-12: FFWD Settings Screen 2.
  • Page 52: Modes Of Operation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 8. Repeat step 7 as needed until the temperature is stabilized within 2-3 °F (1.1 to 1.65 °C) of 9. Set the Outlet Feedback parameter back to Yes. 10. If the outlet temperature does not maintain setpoint after a reasonable amount of time and adjustment, contact your local AERCO representative.
  • Page 53 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 5: INITIAL START-UP 3. Set the Setpoint to the desired value, adjustable from 60°F to 170°F (15.6°C to 76.7°C). 4. Set the Setpoint Low Limit, adjustable from 40°F to 245°F (4.4°C to 118.3°C) and Setpoint High Limit (40°F to 220°F, 4.4°C to 104.4°C) to the desired values.
  • Page 54: Section 6: Safety Device Testing

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING SECTION 6: SAFETY DEVICE TESTING 6.1 Testing Safety Devices Periodic safety device testing is required to ensure that the control system and safety devices are operating properly. The Water Heater control system comprehensively monitors all combustion-related safety devices before, during and after the start sequence.
  • Page 55: Low Gas Pressure Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 6.2 Low Gas Pressure Test To simulate a low gas pressure fault: 1. Remove the front panel from the Water Heater to access the gas train components. 2. Make sure the 1/4" ball valve located at the inlet side of the SSOV is closed. 3.
  • Page 56: High Gas Pressure Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 6.3 High Gas Pressure Test To simulate a high gas pressure fault, refer to Figure 6-4 and perform the following steps: 1. Close the 1/4" ball valve located at the High Gas Pressure switch. 2.
  • Page 57: Low Water Level Fault Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING Figure 6-3: High Gas Pressure Switch Figure 6-4: HIGH Gas Pressure Test Components 6.4 Low Water Level Fault Test Enable/Disable switch to Disable. 2. Close the water shut-off valves in the supply and return piping to the unit. 3.
  • Page 58: Water Temperature Fault Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 11. After shell is full press LOW WATER LEVEL RESET to reset the low water cutoff. 12. Press CLEAR to reset the FAULT LED and clear the displayed error message. 13.
  • Page 59: Interlock Tests

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING should start flashing, and a High-Water Temp Switch Open fault message should be displayed. It should not be possible to restart the unit. 4. Repeat Step 2 to return to the Automatic Reset switch; but press Up arrow to return to its original setting.
  • Page 60: Flame Fault Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 6.7 Flame Fault Test Flame faults can occur during ignition or while the unit is already running. To simulate each of these fault conditions, proceed as follows: Enable/Disable switch to Disable. 2.
  • Page 61 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 3. Use a Phillips head screw drive to remove the front cover from the switch to reveal the switch setting indicator dial (0.6 in the figure below) . Figure 6-8: Blower Proof Switch 4.
  • Page 62: Ssov Proof Of Closure Switch Check

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING 6. When the Controller gets into the ignition phase, it will show Ignition Trial . At that point attach the alligator clip (Figure 6-9) to any bare metal surface or ground. The Controller Flame Proven displays and begins to ramp up to 100% fire rate.
  • Page 63: Check Ignition Switch Open During Ignition

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING Figure 6-10: Air/Fuel Valve Cover Location 6.11 Check Ignition Switch Open During Ignition The Ignition switch (and the Purge switch) is located on the Air/Fuel Valve. To check the switch, proceed as follows: Enable/Disable switch to Disable.
  • Page 64: Safety Pressure Relief Valve Test

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 6: SAFETY DEVICE TESTING Figure 6-11: Air/Fuel Purge and Ignition Locations 6.12 Safety Pressure Relief Valve Test Test the safety Pressure Relief Valve in accordance with ASME Water Heater and Pressure Vessel Code, Section VI. OMM-0175 3/20/2025 433-5654 (ext.
  • Page 65: Section 7: Maintenance

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE SECTION 7: MAINTENANCE 7.1 Maintenance Schedule All Innovation Water Heaters require regular routine maintenance to keep up efficiency and reliability. For best operation and life of the unit, the following routine maintenance procedures should be performed in the time periods specified in the table below.
  • Page 66: Water Quality Guidelines

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE 7.2 Water Quality Guidelines To keep your water heater operating efficiently it is critical to make sure the chemical composition of incoming water is not harmful to the heater. To prevent corrosion, fouling, and other harmful effects on the heater, the following water quality guidelines should be adhered to: Water Quality Guidelines Total Dissolved Solids:...
  • Page 67: Flame Detector

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Figure 7-2: Igniter-Injector Orientation 7.4 Flame Detector The Innovation Flame Detector (kit P/N 24356-1) is located on the burner plate at the top of the unit (see Figure 7-1). The flame detector should be inspected every 12 months and replaced every 24 months, or sooner if damaged or warped.
  • Page 68: Safety Device Testing

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Lean O Sensor Maintenance 1. Set the Enable/Disable switch on the Edge Controller to Disabled. 2. Remove the top enclosure cover from the unit. 3. Disconnect O sensor lead wire by pushing the release tab and pulling connector apart. 4.
  • Page 69: Waterside Inspection And Cleaning

    7.8.1 Waterside Inspection-Cleaning Schedule For units at sites with hard water (>3.5 grains/gal, >59.9 mg/L), AERCO recommends use of ® Watts OneFlow anti-scaling system (note, this system does not protect against orthophosphates, which can also cause scale deposits). AERCO requires exchanger be inspected per the schedule below.
  • Page 70 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Figure 7-5: NPT Inspection Port Locations 7.8.3 Waterside Heat Exchanger Cleaning If the inspection of the waterside components revealed sediment and/or scale buildup, complete the instructions below to flush the shell with a cleaning solution. To clean the heat exchanger, AERCO recommends using a cleaning solution of Rydlyme Chemical Descaler (or equivalent) and clean water.
  • Page 71 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Hose Connection Upper Drain Valve Back-Flow Preventer Pump Circulation Bucket Cold Water In Lower Drain Valve Figure 7-6: Sample Heat Exchanger Cleaning Set-Up 7.8.3.2 Cleaning Procedure Instructions 1. Prepare a cleaning solution of Rydlyme Chemical Descaler and clean water according to the full volume of water that the heat exchanger holds.
  • Page 72: Condensate Drain Trap

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE 7.8.3.3 Testing Cleaning Effectiveness There are two methods of testing the effectiveness of the cleaning solution during cleaning: the calcium carbonate spot test of the circulating solution and the charting of a trend in the pH of the cleaning solution.
  • Page 73: Air Filter Cleaning And Replacement

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Figure 7-8: Condensate Trap and Neutralizer 7.10 Air Filter Cleaning and Replacement The Water Heater Cleaned every 12 months, and Replaced after 24 months if it shows signs of deterioration. However, if still in good condition you can order a 24 Month Maintenance kit with air filter cleaning kit.
  • Page 74: Shutting Water Heater Down For Extended Period (1+ Year)

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE 7.11 Shutting Water Heater Down for Extended Period (1+ Year) 1. Set Enable/Disable switch on the front panel to the Disable position. 2. Disconnect AC power from the unit. 3. Close the water supply and return valves to isolate Water Heater. 4.
  • Page 75: Recommended Spare Parts

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 7: MAINTENANCE Recommended Periodic Testing ITEM FREQUENCY ACTION BY REMARKS Low water level cut off Weekly Operator See Section 6.4: Low Water Level Fault Test. and alarm Perform a slow drain test in accordance with ASME Water Slow drain test Semi-Annually Operator Heater and Pressure Vessel Code, Section IV.
  • Page 76: Section 8: Water Heater Management

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT SECTION 8: WATER HEATER MANAGEMENT The on-board Water-Heater Management system (WHM) feature is integrated in the Edge Controller, designed to stage and coordinate multiple Innovation Water Heaters while maximizing operational efficiency.
  • Page 77: Whm Principles Of Operation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.2 WHM Principles of Operation The WHM system communicates with the plant Water Heaters via a RS485 network utilizing Modbus RTU protocol (8-bit, 9600 baud, no parity). Multiple baud rates (9600, 19200, 38400, 57600) options are available in WHM Cascade menu.
  • Page 78 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.3.3 Temperature Sensor Calibration optimal performance. Complete the following to calibrate the temperature sensors. Figure 8-2: Temperature Sensors Screen 1. Go to: Main Menu → Calibration → Input/Output → Temperature Sensors. 2.
  • Page 79: Whm Status Displays

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.3.7 High Temperature Governor The High Temperature Governor is a feature that aggressively prevents the outlet temperature of the system PID and Feed-Forward control methodology and independently modulates the Valve Position (Fire Rate) if the outlet temperature dangerously approaches the Temperature Hi Limit parameter.
  • Page 80: Whm Parameters

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT The following messages may appear on this screen: FAILSAFE ACTIVE The Client Failsafe Mode has been activated All Heaters On All available heaters are ignited All Heaters Off All available heaters are off Enabling First The first heater is allowed to ignite and its valve is opened...
  • Page 81 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT WHM Cascade → Cascade Comm Parameters Menu Item Available Choices or Limits Default Display Minimum Maximum Unit Address The address in the WHM Cascade of the current unit. Address WHM Manager only: The minimum address in the WHM cascade Address...
  • Page 82 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT WHM CLIENT SCREEN WHM MANAGER SCREEN Figure 8-5: Cascade Communication Screens WHM Cascade → Application Configuration Parameters Available Choices or Limits Default Menu Item Display Minimum Maximum Read Only Application Specifies the application for the entire WHM Cascade.
  • Page 83 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Operating Controls → Sequencing Control Parameters Available Choices or Limits Menu Item Display Default Minimum Maximum 100% Next On Valve Pos The valve position that triggers the next unit to come on line. 100% Next Off Valve Pos The valve position that triggers the next unit to come off line.
  • Page 84 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Operating Controls → Valve Configuration Parameters Available Choices or Limits Menu Item Display Default Minimum Maximum Aout 2 Read Only Select Output Select the output you want to configure. Current Read Only Output Signal Type...
  • Page 85: Whm Hardware Installation & Set-Up Instructions

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Figure 8-10: Operating Controls: Lead/Lag Control Screen 8.7 WHM Hardware Installation & Set-Up Instructions The following sections provide the basic installation and set-up instructions for implementing a Water Heater Management System (WHM) to control up to 16 Innovation Water Heaters. 8.7.1 Installation Notes Multi-unit configurations require a sequencing valve.
  • Page 86 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Figure 8-11: Typical Daisy-Chain Modbus/RS485 Network NOTE: WHM Manager does t necessarily have to be on either end of the Daisy-Chain loop. Any one of the Edge WHM units included in the Modbus network can be the Manager. However, it is recommended that you decide which unit will be the Manager and which will be the last unit on the daisy-chain prior to performing the wiring connections.
  • Page 87 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.7.4 Control And Power Wiring Control and power wiring connections to the Sequencing Valves associated with each Edge WHM unit is accomplished by ensuring that the 5-pin Molex connectors on the units are connected to the corresponding connectors on the valves.
  • Page 88 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Figure 8-13: WHM Network Wiring Diagram OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 88 of 128...
  • Page 89: Whm Programming & Start-Up

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.8 WHM Programming & Start-Up All required hardware installation and network wiring must be completed before configuring the WHM parameters into the WHM Manager and Client units. In addition, the required menu entries must be determined based on the descriptions in the previous sections.
  • Page 90 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 5. Go to: Advanced Setup → WHM Cascade → Operating Controls → Sequencing Control. The Next On Valve Pos parameter specifies the valve position that will trigger the next unit to come on line, and the Next Off Valve Pos parameter specifies the valve position that will trigger the next unit go off-line.
  • Page 91: Troubleshooting

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT 8.9 Troubleshooting TABLE 8.9: WHM Troubleshooting FAULT INDICATION PROBABLE CAUSE CORRECTIVE ACTION Manager LEDs are Two Edge Controllers Check the WHM Mode entries in the units flashing on 2 have their WHM Mode which have their displays flashing.
  • Page 92 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 8: WATER HEATER MANAGEMENT Figure 8-16: Actuator PC Board Components NOTE: DO NOT press Auto-Stroke (Reset) button. Doing so may alter actuator calibration. Depress and hold brass clutch button to manually rotate valve. C A U T I O N ! Power must be removed from the Actuator prior to attempting to manual override.
  • Page 93: Section 9: O 2 Trim Operation

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION SECTION 9: O TRIM OPERATION Advanced combustion control systems need to maintain precise air/fuel ratios to maximize efficiency. Gas Water Heaters often deviate from the ideal air-fuel ratio due to environmental variations such as humidity, atmospheric pressure, filter dust loading, delivered gas energy content and other factors.
  • Page 94: O 2 Sensor Calibration

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION Figure 9-2 shows how the controller would react to an O % reading above the upper limit. It will reduce the blower voltage (BV) until the O % reading is within the Target Range, provided the BV adjustments are within the limits for that fire rate.
  • Page 95: Trim Menu Values And Defaults

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION Figure 9-3: O Sensor Calibration Screen 9.3 Trim Menu Values and Defaults Trim screens, available from Main Menu → Advanced Setup → There are three O Performance → O Trim.
  • Page 96 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION Figure 9-5: O Trim Parameters Screen • Trim Status: Displays the current status of O Trim operation. Figure 9-6: O Trim Status Screen Edge Controller Manual For more information, see the (OMM-0161), Section 6.6.1.
  • Page 97 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION INN 2000/ O Trim Values MENU ITEM Minimum Maximum Default Settle Time 120 Sec 20 Sec Trim Gain 0.250 Max Tries 5.6% 5.6% 5.8% Target 5.6% 5.6% (must be between O Upper &...
  • Page 98 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION (must be at 2.5% 5.5% 5.1% least 1% lower 5.1% than O Upper) 2.5% 5.5% 5.1% 5.1% 100% 2.5% 5.5% 5.1% 5.5% 8.5% 6.1% 5.5% 8.5% 6.1% Upper 5.5% 8.5% 6.1%...
  • Page 99: Calibration Point

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION INN 1600 O Trim Values (Propane) MENU ITEM Minimum Maximum Default Settle Time 120 Sec 20 Sec Trim Gain 0.250 Max Tries 5.5% 5.5% Target 5.5% 5.5% (must be between O 5.5% Upper &...
  • Page 100 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION INN 1600 O Trim Adjustment Range (Natural Gas) BLOWER VOLTAGE (Volts) CALIBRATION POINT Minimum Maximum Default 2.20 3.20 2.50 3.20 4.30 3.60 3.60 4.90 4.10 3.70 5.30 4.50 4.10 5.60 4.85...
  • Page 101: Trim Maintenance And Troubleshooting

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION Trim Maintenance and Troubleshooting The O Trim system depends on the O sensor. It is recommended that you inspect the oxygen sensor for accuracy every 12 months by comparing it to a sensor reading from a properly calibrated flue analyzer.
  • Page 102 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 9: O2 TRIM OPERATION The Edge Controller displays following statuses in the O Trim Status parameter on the Advanced Setup → Performance → O Trim → O Trim Status screen. Trim Operation Interruption Errors Status Messages Description Action...
  • Page 103: Section 10: Troubleshooting

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING SECTION 10: TROUBLESHOOTING 10.1 Introduction This section is intended to aid service/maintenance personnel in isolating the cause of a fault in your Innovation Water Heater. The troubleshooting procedures below are presented in tabular form on the following pages.
  • Page 104 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Blower stopped running due Check combustion blower for signs of excessive heat to thermal or current or high current drain that may trip thermal or overload.
  • Page 105 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Inspect the inlet to the combustion blower including Blocked blower inlet or inlet any ductwork leading up to the combustion blower ductwork. for signs of blockage.
  • Page 106: Heat Demand

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Direct drive signal is not Check I/O Box to ensure signal is hooked up. present: • Hook up if not installed. • Not yet installed.
  • Page 107 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Relay is activated when not Defective relay. Replace IGST Board. in Demand. Check combustion calibration using procedures in Poor combustion calibration. Section 5.4: Combustion Calibration of this guide. HIGH EXHAUST Carboned heat exchanger If exhaust temperature is greater than 200°F...
  • Page 108 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Start the unit. The Air/Fuel Valve should rotate to the purge (open) position. If the valve does not rotate at all or does not rotate fully open, check the Air/Fuel Valve not rotating.
  • Page 109 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Check transformer wiring, in AC Power Box, against Incorrect power supply the power box transformer wiring diagram to transformer wiring. ensure it is wired correctly. Measure gas pressure upstream of the SSOV Incorrect supply gas Actuator(s) with the unit firing.
  • Page 110 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action Measure for 24 VAC from each side of the switch to No voltage present at ground. If 24 VAC is not present, refer fault to switch.
  • Page 111 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Innovation Troubleshooting Procedures Fault Probable Causes Corrective Action SSOV FAULT SSOV switch closed for 15 Replace actuator. DURING RUN seconds during run. SSOV relay failed on IGST Press CLEAR button and restart unit. If fault board.
  • Page 112: Additional Faults Without Specific Fault Messages

    Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING 10.2 Additional Faults Without Specific Fault Messages Refer to Table 12.2 to troubleshoot faults which may occur without a specific fault message being displayed. TABLE 12.2: Water Heater Troubleshooting with No Fault Message Displayed Observed Probable Causes Corrective Action...
  • Page 113 Innovation 1600-2000 - Installation, Operation and Maintenance SECTION 10: TROUBLESHOOTING Figure 10-2: Intake Manifold and Components Figure 10-3: SSOV Actuator with Gas Pressure Adjustment (SKP25) OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 113 of 128...
  • Page 114: Appendix A Dimensions And Clearance

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX A DIMENSIONS AND CLEARANCE APPENDIX A DIMENSIONS AND CLEARANCE Innovation Dimensions (INN 2000 & INN 1600) OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 114 of 128...
  • Page 115 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX A DIMENSIONS AND CLEARANCE Innovation Clearances (INN 2000 & INN 1600) OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 115 of 128...
  • Page 116: Appendix Bwiring Diagrams

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX B WIRING DIAGRAMS APPENDIX B WIRING DIAGRAMS Innovation 2000 Drawing Number: 68106 rev C Sheet 1 of 4 OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 116 of 128...
  • Page 117 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX B WIRING DIAGRAMS Innovation 2000 Drawing Number: 68106 rev C Sheet 2 of 4 OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 117 of 128...
  • Page 118 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX B WIRING DIAGRAMS Innovation 2000 Drawing Number: 68106 rev C Sheet 3 of 4 OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 118 of 128...
  • Page 119 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX B WIRING DIAGRAMS Innovation 2000 Drawing Number: 68106 rev C Sheet 4 of 4 OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 119 of 128...
  • Page 120: Appendix C Innovation2000/1600 Parts List

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST APPENDIX C INNOVATION2000/1600 PARTS LIST Item # Part # Description EXHAUST MANIFOLD 39237 Exhaust Manifold 81165 Exhaust Manifold Seal 9-22 Pipe Plug - Exhaust Manifold 92094 Drain Valve: 3/4 “ GAS TRAIN ASSEMBLIES (See full diagram below) 22362 INN 2000/1600 Standard Gas Train...
  • Page 121: Enclosure Panels

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST Item # Qty Part # Description Temperature Sensor, Dual 61056 Thermocouple 122843  Low Water Cutoff 64081 ECU (for O Sensor) 59178 Vent: Air 1/8 NPT 123863 Valve: Ball 1/8"...
  • Page 122 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST POWER PANEL WITH COVERS REMOVED POWER PANEL P/N 69315-7 Item # Qty Part # Description 30170 Power Panel 69141 DIN Rail End Stop 65213 Terminal Block, Yellow 65194 Terminal Block, Red 65247...
  • Page 123 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST Innovation Spare Parts Kits Part # Description 123540 Ball Valve, External 2” 24441 Condensate Trap 92605-5 T&P Relief Valve, pressure setting 150 psi, temperature setting 210°F 24786 8”...
  • Page 124 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST Innovation 2000 Standard Gas Train – NATURAL GAS P/N 22362C Item Part # Description Item Part # Description Gas Pressure Switch, 1-20 123542 Flange 2" 125# 2" NPT 60032 W.C.
  • Page 125 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST Innovation 2000 Recirculation Loop P/N 22384C Item Qty Part # Description 69371 Circulator Pump 95037 Flange, Taco 97174 Reducing Tee, 1½” to ¾” NPT 92060 ¾” Drain Valve 92125-1.5 Ball Valve, Full Port 1.5”...
  • Page 126 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX C Innovation2000/1600 PARTS LIST Innovation 2000 Burner Assembly P/N 26024C Item Qty Part # Description 46063 Burner 81185 Burner Release Gasket: Lower 81180 Burner Gasket 81173 Release Gasket 43091 Blower Plenum 81048 Gasket: Flame Rod Low NO 24356-1...
  • Page 127: Appendix D Temperature Sensor Resistance/Voltage

    Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX D TEMPERATURE SENSOR RESISTANCE/VOLTAGE APPENDIX D TEMPERATURE SENSOR RESISTANCE/VOLTAGE Innovation units have PT-1000 temperature sensors by default. However, users are allowed to change to the older, Balco sensors. PT-1000 Temperature Sensor Resistance Chart Temperature Sensor Resistance (Ohms) °F...
  • Page 128 Innovation 1600-2000 - Installation, Operation and Maintenance 0 APPENDIX D TEMPERATURE SENSOR RESISTANCE/VOLTAGE © AERCO International, Inc., 2025 OMM-0175 3/20/2025 433-5654 (ext. 3) -Fri, 8 am - 5 pm EST Page 128 of 128...

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