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Other documents for this product include: 

TAG-0072 GF-146-E Electrical Power Guide 
TAG-0073 GF-146-G Gas Supply Guide 
TAG-0074 GF-146-P Piping Application Guide 
TAG-0075 GF-146-V Venting Guide 
 

IMPORTANT! 

This manual

 MUST

 be used in conjunction with User 

Manual  GF-146  for  the  startup,  operation,  and 
maintenance of the AM Series Boiler used in the pool 
heating system.  

 

.  

 

 

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. AERCO International 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-0111_B:

  

  GF-146-P   

   10/29/2019 

Operation & Maintenance Manual 

 
 

AM Series Pool Heater 

 

Natural Gas and Propane Gas 
Modulating Condensing Pool 
Heating System 

 

 

AM 399P 

 

AM 500P 

 

AM 750P 

 

AM 1000P 

 

Summary of Contents for Aerco AM 1000P

Page 1: ...s 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 AERCO International is not liable for errors appearing in this manual not for incidental or consequential damages occurring in connection with the furnishing perf...

Page 2: ...NCES TO COMBUSTIBLE MATERIAL 19 3 7 TRANSPORTING THE AM SERIES POOL HEATER 19 SECTION 4 INSTALLATION VENT AND AIR 22 4 1 VENT AND COMBUSTION AIR PIPING 22 4 2 PREVENTION OF COMBUSTION AIR CONTAMINATION 22 SECTION 5 INSTALLATION PIPING 24 5 1 BOILER WATER INLET AND OUTLET PIPING 24 5 2 WATER QUALITY 24 5 3 SYSTEM PIPING METHODS 24 5 4 FREEZE PROTECTION 25 5 5 SAFETY RELIEF VALVE 26 5 6 CONDENSATE D...

Page 3: ...ns 38 7 1 4 MODBUS Interface Connections Boilers and Water Heaters 38 7 2 ELECTRICAL CONNECTIONS BOILERS ONLY 39 7 2 1 Pool Flow Switch Connections 39 7 2 2 Pool Water High Limit Switch Connections 40 SECTION 8 UNIT STARTUP 40 SECTION 9 OPERATION 40 SECTION 10 BOILER MAINTENANCE 40 SECTION 11 BOILER TECHNICAL DATA 41 SECTION 12 BOILER PARTS DRAWINGS LISTS 41 SECTION 13 SYSTEM PART DRAWINGS AND LIS...

Page 4: ...own 8 1 to 20 1 depending on unit Low NOx Emission 20ppm Direct or Conventional Vent with PVC CPVC Polypropylene or AL29 4C materials Concentric Vent Capability Common Vent Capability Side wall common venting with no additional check valve Small Doorway Size Footprint Superior Reliability Minimal Maintenance Easy Front Access for Serviceability Zero Side Clearance Supports Integration to BAS Syste...

Page 5: ... Failure to comply with provisions warnings and cautions provided in this manual can lead to extensive property damage and or personal injury or death In the event of a breakdown and or malfunction of the boiler used in this system turn off the unit and do not make any attempt to repair it The boiler must be serviced exclusively by a Qualified installer using original spare parts Failure to comply ...

Page 6: ...ing compounds in the boiler system Gaskets and seals in the system may be damaged This can result in substantial property damage The manufacturer declines all liability contractual or otherwise warranty included for any damage to people animals property or this same appliance caused by Incorrect installation or failure to comply with this or any other instruction provided by the manufacturer Failu...

Page 7: ...AM Series Pool Heater User Manual CHAPTER 1 GENERAL INFORMATION OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 7 of 47 OFF OFF ...

Page 8: ...ersonnel Figure 1 1 Manual Gas Shutoff Valve IMPORTANT FOR MASSACHUSETTS INSTALLATIONS Boiler Installations within the Commonwealth of Massachusetts must conform to the following requirements Boiler must be installed by a plumber or a gas fitter who is licensed within the Commonwealth of Massachusetts Prior to unit operation the complete gas train and all connections must be leak tested using a no...

Page 9: ...ser Manual GF 146 Figure 2 1 shows the exterior appearance of an AM Series Pool heating system as it comes factory configured and installed on a skid The AM Series Pool Heater comes in four functionally sized models the 399 500 750 and 1000 Figure 2 2 shows the boilers available Figure 2 1 AM Series Pool Heating System AM 750P 1000P Shown Figure 2 2 Boiler Models Used in AM Series Pool Heating Sys...

Page 10: ... excess oxygen A modulating gas valve and variable speed fan meter the natural gas and air input respectively Each module has a dedicated isolation valve on the inlet side of the module on the rear of the unit The table below shows the pool flow rates for each model as well as the water connection sizes AM Series Pool Heating System General Specifications Model Modules Turndown Ratio Pool Water Ma...

Page 11: ...111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 11 of 47 Figure 2 3a AM 399P 500P Pool Heater Connection Dimensions NOTE These drawings and or dimensions are subject to change Please refer to latest drawings revisions on the AERCO website ...

Page 12: ...111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 12 of 47 Figure 2 3b AM 750P 1000P Pool Heater Connection Dimensions NOTE These drawings and or dimensions are subject to change Please refer to latest drawings revisions on the AERCO website ...

Page 13: ...perates with an Inverse Efficiency Curve with known Part Load Value Efficiencies There are five 5 modes in which the AM boiler may be set each one adjusting this performance according to specific requirements The AM Series boiler s operates in the control modes listed below Internal Setpoint Indoor Outdoor Reset 0 to 10VDC Temperature Setpoint Network Temperature Setpoint A description of each sel...

Page 14: ...ce with BACnet Lonworks and N2 shall utilize an optional AERCO Communications Gateway to act as a MODBUS interface translator between the BAS the communications The AERCO Communications Gateway is comprised of a microprocessor based control utilizing the MODBUS protocol to communicate with the boilers Non volatile backup of all point mappings and programs are internally provided as standard Connec...

Page 15: ...AM Series Pool Heater User Manual CHAPTER 2 FUNCTION SPECIFICATIONS OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 15 of 47 This Page Is Intentionally Blank ...

Page 16: ...for removal of unburned gas This appliance is not designed for direct outdoor installation If installed outside of the structure it must be sheltered so it is protected from rain wind sun and frost NEVER place this appliance in a location that would subject it to temperatures at or near freezing or excessively high temperature Failure to properly locate this unit can result in premature failure Th...

Page 17: ...flammable materials or liquids in the immediate vicinity of the boiler 3 4 Closet and Alcove Installation This heater is approved for the installation in an alcove or closet within compliance of the guidelines pertaining to clearance venting and ventilation openings as per this manual and the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CAN CSA B149 1 Natural Gas and Propane Installation Code ...

Page 18: ...88 Mon Fri 8 am 5 pm EST Page 18 of 47 Figure 3 1a Recommended Minimum Service Clearances AM 399 AM 500 Figure 3 1b Recommended Minimum Service Clearances AM 750 AM 1000 32 20 REAR FRONT Or per piping of Heat Exchanger 24 24 12 24 24 12 32 20 REAR FRONT Or per piping of Heat Exchanger TOP VIEW TOP VIEW SIDE VIEW SIDE VIEW ...

Page 19: ...cturer s instructions The vent system must conform to all manufacturer s recommendations and shall utilize UL listed stainless steel AL 29 4C Polypropylene PVC or CPVC Positive Pressure venting materials The vent must be sized in accordance with AERCO s recommendations 3 7 Transporting the AM Series Pool Heater After removing the shipping carton from the unit ensure the following when transporting...

Page 20: ...using a fork lift inserted into the skid at front green arrows or at the sides yellow arrows as indicated by in Figure 3 2 Figure 3 2 Transporting the AM Series Pool Heater CAUTION DO NOT use the lifting lugs on the AM boiler itself to lift the entire AM assembly They are to be used ONLY in the maintenance or replacement of the boiler unit Shipping Weights Model Approx Weight lbs AM 399P 920 AM 50...

Page 21: ...AM Series Pool Heater User Manual SECTION 3 INSTALLATION SITE OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 21 of 47 This Page Is Intentionally Blank ...

Page 22: ...r for installation using room combustion air When room combustion air is considered see Chapter 6 Vent and air may be vented vertically through the roof or out a side wall unless otherwise specified You may use any of the vent air piping methods covered in Chapter 6 Be sure to locate the unit such that the vent and air piping can be routed through the building and properly terminated The vent air p...

Page 23: ...AM Series Pool Heater User Manual SECTION 4 INSTALLATION VENT AND AIR OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 23 of 47 This Page Is Intentionally Blank ...

Page 24: ...s must be less than 200 ppm total dissolved solids TDS Artificial Softness Do NOT use artificially softened water Artificial softening agents generally use salt which creates a chloride water chemistry a major contributor to the corrosion of the types of metals used in hydronic systems Elevated salt levels also contribute to higher conductivity levels another undesirable characteristic in hydronic...

Page 25: ...s toxic and can corrode gaskets and seals WARNING Never use non approved additives or toxic boiler treatment chemicals in the heating system Any additives introduced into the heating system must be recognized as safe Use only inhibited propylene glycol solutions which are specifically formulated for hydronic systems Ethylene glycol is toxic and can attack gaskets and seals used in hydronic systems ...

Page 26: ...ain to prevent injury in the event of pressure relief Each relief valve must have its own discharge piping be piped to within 12 of the ground and not be combined with any other piping all the way to the point of discharge into a drain Provide piping that is the same size as the safety relief valve outlet Figure 5 1 Discharge Piping for Boiler Relief Valves AM 1000 Boiler Shown SAFETY RELIEF VALVE...

Page 27: ...through pipe C Figure 4 8 and E Figure 4 9 and empties into the floor drain or drain pan F Figure 5 3 NOTE In newer units hose A Fig 5 2 attaches to a port at the bottom of flue rather than the side The condensation disposal system must slope the condensate tubing down and away from the boiler into a drain or drain pan See Figure 4 9 Condensate from the boiler will be slightly acidic around pH 4 T...

Page 28: ...rvice and maintenance 5 8 Pool Water Connections to the Heat Exchanger The supply and return water piping connection size to the indirect heat exchanger is 1 1 2 NPT for models AM 399P 500P and 2 NPT for models AM 750P 1000P The connections of the indirect heat exchanger to the Pool spa water piping connections is 3 NPT for models AM 399P 500P and 3 Flg for models AM 750P 1000P Attaching Pool Wate...

Page 29: ...w Piping Method A full flow system is recommended if the total system flow of the swimming pool or spa system is within five gallons per minute of the recommended system water flow as shown in the table below AM Series Pool Water Flowrates Model Pool Water Flowrate AM 399B 127 GPM AM 500B AM 750B 222 GPM AM 1000B An example of the configuration and necessary components for a full flow system are s...

Page 30: ...anger If pool or spa water system exceeds 95 F in temperature a bypass flow configuration is used to cool down the return flow in order to prevent tripping the high limit switch and to prevent water with temperatures over 115 F from entering the pool or spa system Multiple unit installations An example of the configuration and necessary components for a bypass flow system are shown in Figure 5 5b ...

Page 31: ...AM Series Pool Heater User Manual SECTION 5 INSTALLATION PIPING OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 31 of 47 ...

Page 32: ... regulators are recommended on every unit but not required NOTE For installation in Massachusetts an individual gas regulator is required on every unit regardless of incoming gas pressure 6 2 Natural Gas Pressure Requirements Each natural gas boiler requires a minimum gas pressure of 3 W C at gas flow rates indicated in the table below full load rated capacity For applications with gas supply pres...

Page 33: ...ation check the appliance and its gas connection for leaks a The appliance must be disconnected from the gas supply piping system during any pressure testing of that system at a test pressure in excess of 1 2 PSIG 3 5 kPa b The appliance must be isolated from the gas supply piping system by closing a manual shutoff valve during any pressure testing of the gas supply piping system at test pressures...

Page 34: ...5 400 600 1160 1840 3260 6640 70 N A 179 368 552 1060 1690 3000 6110 80 N A 167 343 514 989 1580 2790 5680 90 N A 157 322 482 928 1480 2610 5330 100 N A 148 304 455 877 1400 2470 5040 125 N A 131 269 403 777 1240 2190 4460 150 N A 119 244 366 704 1120 1980 4050 175 N A N A 224 336 648 1030 1820 3720 200 N A N A 209 313 602 960 1700 3460 250 N A N A 185 277 534 851 1500 3070 NOTE Maximum pipe capac...

Page 35: ... com for further information For installations at higher altitudes in the United States follow local codes or in the absence of local codes follow ANSI Z223 1 NFPA No 54 The National Fuel Gas Code and check and adjust the CO2 level following Section 8 7 6 10 Conversion from Natural gas to Propane Gas The gas conversion must be performed on each burner present inside the unit The gas conversion sha...

Page 36: ... pm EST Page 36 of 47 SECTION 7 INSTALLATION ELECTRICAL 7 1 Electrical Connections Boiler 7 1 1 Power Supply Cable Connection Provide and install a fused disconnect or service switch 15 amp recommended as required by prevailing codes To connect the electrical line voltage power supply cable refer to Figure 7 1 Figure 7 1 Line Voltage Connection ...

Page 37: ...s Pool Heater User Manual SECTION 7 INSTALLATION ELECTRICAL OMM 0111_B GF 146 P 10 29 2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 37 of 47 Figure 7 2 Pool Heater Boiler Electrical Connections ...

Page 38: ...here If the input voltage stays below 1 5V the heater stays OFF If the input voltage increases to between 1 5V and 2 0V the heater start to operate and the supply temperature stays at the value set for the Minimum CH setpoint parameter 3018 in the Factory menu per Appendix B in AM Series Manual GF 146 As the input voltage changes between 2V and 10V the supply temperature will change proportionally...

Page 39: ...r manual GF 146 2 Connect the leads of a two conductor cable with a minimum cross section of 18 AWG to your enable disable controller and run the cable to the boiler electrical junction box NOTE AERCO offers flow switch PN 64105 as an optional accessory when using this flow switch connect the cable leads to the COM and NO terminals of the switch refer to the pool design flow rates and follow insta...

Page 40: ...ures and follow installation instructions that comes with the high limit switch 3 Open the boiler electrical junction box cover and connect the leads of the cable to terminals R1 and R2 see Figure 7 2 SECTION 8 UNIT STARTUP WARNING The technician in charge of unit start up must refer to Section 8 of the AM Series User Manual GF 146 for start up information and instructions including combustion cal...

Page 41: ...SECTION 11 BOILER TECHNICAL DATA REFERENCE NOTE For all information regarding the technical data of the boiler refer to Section 12 of the AM Series User Manual GF 146 SECTION 12 BOILER PARTS DRAWINGS LISTS REFERENCE NOTE For all information regarding the detailed spare parts and lists for the boiler refer to Section 13 of the AM Series User Manual GF 146 ...

Page 42: ...System Parts Drawing and List Equipment List Models AM399P 016 AM500P 016 Item Part Description 1 Base 2 AM399B AM500B Boiler 3 0066605 Expansion Tank 4 99124 Pump 5 63063 Relay 6 N A Starter 7 16050265 001 Pool Heat Exchanger 8 92081 2 5 Circuit Setter 9 N A Thermal Unit 10 121700 Low Water Cutoff 11 0386425 Press Reducing Valve 12 61053 Water Return Temperature Sensor Not visible externally 2 1 ...

Page 43: ...ist Models AM399P 075 AM500P 075 Item Part Description 1 Base 2 AM399B AM500B Boiler 3 0066605 Expansion Tank 4 99126 Pump 5 63190 Relay 6 N A Starter 7 16050265 001 Pool Heat Exchanger 8 92081 2 5 Circuit Setter 9 N A Thermal Unit 10 121700 Low Water Cutoff 11 0386425 Press Reducing Valve 12 61053 Water Return Temperature Sensor Not visible externally ...

Page 44: ...g and List Equipment List Models AM750P 016 AM1000P 016 Item Part Description 1 Base 2 AM750B AM1000B Boiler 3 0066605 Expansion Tank 4 99124 Pump 5 63063 Relay 6 N A Starter 7 28567 Pool Heat Exchanger 8 92081 2 5 Circuit Setter 9 N A Thermal Unit 10 121700 Low Water Cutoff 11 0386425 Press Reducing Valve 12 61053 Water Return Temperature Sensor Not visible externally 2 1 3 4 7 10 11 8 12 6 ...

Page 45: ...uipment List Models AM750P 200 AM1000P 200 Item Part Description 1 Base 2 AM750B AM1000B Boiler 3 0066605 Expansion Tank 4 69231 Pump 5 N A Relay 6 63191 Starter 7 28567 Pool Heat Exchanger 8 92081 2 5 Circuit Setter 9 69272 30 Thermal Unit 10 121700 Low Water Cutoff 11 0386425 Press Reducing Valve 12 61053 Water Return Temperature Sensor Not visible externally Equipment List Models AM1000P 040 It...

Page 46: ...ts or workmanship All other boiler components carry an 18 month warranty against failure due to defective materials or workmanship If any part of skid package fails because of a manufacturing defect within one year from system startup date or 18 months from the ship date factory shall furnish from manufacturer s organizations without charge the required replacement part NOTE Refer to the AERCO web...

Page 47: ...2019 Technical Support 800 526 0288 Mon Fri 8 am 5 pm EST Page 47 of 47 Change Log DATE DESCRIPTION CHANGED BY 11 29 2018 Rev A Initial release 10 29 2019 Rev B Parts List Update Section 13 2 Wiring Update Section 7 Linley Thobourne AERCO International Inc 2018 ...

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