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 SECTION  1: SAFETY PRECAUTIONS  

 

   

 

 SECTION  1: 

  SAFETY PRECAUTIONS 

 

 1.1  Warnings & Cautions 

Installers and operating personnel MUST, at all times, observe all safety regulations. The following 
warnings and cautions are general and must be given the same attention as specific precautions included 
in these instructions.  In addition to all the requirements included in this AERCO Instruction Manual, the 
installation of units MUST conform with local building codes, or, in the absence of local codes, ANSI Z223.1 
(National Fuel Gas Code Publication No. NFPA-54) for gas-fired boilers. Where applicable, the equipment 
shall be installed in accordance with the current Installation Code for Gas Burning Appliances and 
Equipment, and applicable State regulations for the class, which should be carefully followed in all cases. 
Authorities having jurisdiction should be consulted before installations are made. 

See section 1.4 for information regarding installation within the Commonwealth of Massachusetts. 

This manual is an integral part of the product. It must be maintained in a safe place in legible condition and 

given to the user by the installer for future reference. 

 

●  

Do NOT under any circumstances use matches, candles, flames, or other sources of ignition to check for 

gas leaks. Failure to heed this warning may result in property damage, death or serious injury. 

●   Fluids under pressure may cause injury to personnel or damage to equipment when released. Be sure to 

shut off all incoming and outgoing water shutoff valves. Carefully decrease all trapped pressures to zero 
before performing maintenance. 

●  Shut off all gas and electrical inputs to unit before performing any maintenance. 

●  The exhaust vent pipe of the unit operates under a positive pressure and therefore must be completely 

sealed to prevent leakage of combustion products into living spaces. 

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⚡ ⚡

●   

Electrical voltages up to 480 VAC and 24 volts AC may be used in this equipment. Therefore, to operate 

safely the cover on the unit

’s power box (located behind the front panel door) must be installed at all 

times, except during maintenance and servicing. 

●  A single-pole (120 VAC units) or three-pole (220+ VAC units) switch must be installed on the unit’s 

electrical supply line. The switch must be easily accessible to quickly disconnect electrical service. Do not 
affix switch to unit sheet metal enclosures.  

 

Many soaps used for gas pipe leak testing are corrosive to metals. The piping must be rinsed thoroughly 
with clean water after leak checks have been completed. 

 

DO NOT use this boiler if any part has been under water. Call a qualified service technician to inspect and 
replace any part that has been under water. 

 

Observe the CAUTION LABEL on the exhaust manifold regarding installation of vent starter, vent increaser, 
stack guard sensor, barometric damper and condensate trap. See sections 2.7 and 2.11 for details. 
Remove this label from the exhaust manifold before installation of the vent starter.  

 

 

 

 

Содержание AERCO CFR 3000

Страница 1: ...OMM 0163_A...

Страница 2: ...stallation Instructions 11 2 8 GAS SUPPLY PIPING 12 2 8 1 Gas Supply Specifications 12 2 8 2 External Gas Supply Regulator 12 2 8 3 Massachusetts Installations 13 2 8 4 Manual Gas Shutoff Valve 13 2 9...

Страница 3: ...f the boiler is a function of the unit s firing rate valve position and return water temperature When installed and operated in accordance with these instructions theCFR3000complies withtheBay Area Ai...

Страница 4: ...jury Fluidsunderpressuremaycauseinjurytopersonnelordamagetoequipmentwhenreleased Besureto shutoffallincomingandoutgoingwatershutoffvalves Carefullydecreasealltrappedpressurestozero before performing m...

Страница 5: ...cy shutdown switch or circuit breaker will immediately shut off the fuel For boilers monitored and or operated from a continuously occupied control room provide an emergency shutdown switch in the con...

Страница 6: ...er unpacking make a close inspection of the unit to ensure that there is no evidence of damage not indicated by the Tip N Tell indicator The freight carrier should be notified immediately if any damag...

Страница 7: ...vice maintenance requirements must also be taken into consideration All piping must include ample provisions for expansion NOTE CFR units can be installed with zero side clearances in pairs only See A...

Страница 8: ...d separately away from the pad as shown below The minimum pad thickness without a Condensate Neutralizer tank is 4 inches 10 2 cm 1 If using an AERCO CondensateNeutralizerTank P N89030 youmustensureen...

Страница 9: ...eeping concrete pad required in the desired location Figure 2 4 Lifting Lug Locations 2 5 Supply And Return Piping When connecting the hot water outlet and cold water inlet to building piping make sur...

Страница 10: ...sthave provisionsforsuitablecondensatedrainageorcollection Thecondensatedrain port located on the exhaust manifold must be connected to the condensatetrap P N24789 Itsinletand outlet connections conta...

Страница 11: ...ondensatepiping DoNOTusecarbon copper PVC orpolypropylene If a floor drain is not available a condensate pump can be used to remove the condensate to an appropriate drain The maximum condensate flow r...

Страница 12: ...piping must be performed using a soap and water solution or suitable equivalent The gas piping used must meet all applicable codes 2 8 1 Gas Supply Specifications CFR Low NOx series boilers require st...

Страница 13: ...ions External AC powerconnections aremadetotheunit insidethePowerBoxonthefrontoftheunit Remove the front panel to access the Power Box which is mounted in the upper part of the unit Figure 2 9 Power B...

Страница 14: ...at it does not interfere with the removal of any unit covers inhibit service maintenance or prevent access between the unit and walls or another unit 2 10 Field Control Wiring I O Board Each unit is f...

Страница 15: ...nager units Required for the OUTDOOR RESET mode of operation To enable this mode go to the Controller s Main Menu Advanced Setup Unit Application Configuration and set SH Operating Mode to Outdoor Res...

Страница 16: ...6 Sensor Ground Ground connection for RTD Spare 1 7 NOT USED 8 NOT USED 9 NOT USED 10 DHW Temp Connect the DHW tank temperature or DHW Loop Supply Temperature sensor 11 Shield Connection to the shiel...

Страница 17: ...O Connection to a DHW Pump enable disable signal 4 DHW Pump Relay Com 5 V2 Spare 1 Relay N O Connection to an auxiliary device enable disable signal such as System Pump Pump 2 Louver Louver 2 Damper...

Страница 18: ...r 1 Go to Advanced Setup Unit Unit Settings Find the Vent Type parameter 2 Set this parameter to match your vent material Category I this sets the exhaust temp limits Horizontal vent runs slope upward...

Страница 19: ...To ensure the proper pressure range is maintained the CFR boiler requires a barometric damper to be installed immediately after the factory supplied starter piece see Figure 2 15 Do not use the applia...

Страница 20: ...17kW inputforeachunit Thefreeareamusttakeintoaccountrestrictions such as louvers and bird screens 2 12 1 Ducted Combustion Air For ducted combustion air installations the air ductwork must be attache...

Страница 21: ...seDelayappearsonlyifUnitMode inMainMenu AdvancedSetup BSTCascade Cascade Configuration equals BST Manager Once the system load is satisfied and all Client units have stopped firing the BST Manager ope...

Страница 22: ...elayed interlock 1241 Black 3 Remove and dispose of the cap with jumper wire attached 4 Plug the Molex connector into the sequencing isolation valve s connector 5 When the Sequencing Isolation Valve i...

Страница 23: ...APPENDIX A DIMENSIONAL AND CLEARANCE DRAWINGS APPENDIX A DIMENSIONAL AND CLEARANCE DRAWINGS CFR 3000 Dimension Drawing AP A 1093 rev A...

Страница 24: ...APPENDIX A DIMENSIONAL AND CLEARANCE DRAWINGS CFR 3000 Zero Side Clearance Drawing SD A 1283 rev A...

Страница 25: ...AERCO International Inc 2023...

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