Aerco Modulex MLX Series Technical Instructions Download

Page: 1 / 12

AERCO International, Inc.

•

100 Oritani Dr.

•

Blauvelt, New York 10913

•

Phone: 800-526-0288

Page | 47

TID-0027_0A

TECHNICAL INSTRUCTIONS

MLX-303

Fireside Maintenance Kit

Kit 58019-07

MLX-454

Fireside Maintenance Kit

Kit 58019-08

MLX-606

Fireside Maintenance Kit

Kit 58019-09

MLX-757

Fireside Maintenance Kit

Kit 58019-10

MLX-909

Fireside Maintenance Kit

Kit 58019-11

MLX-1060

Fireside Maintenance Kit

Kit 58019-12

NOTE

For Modulex 12-Month maintenance

instructions (Annual Inspection), see

Document TID-0026

Procedure:

Modulex

Fireside (24-Month)

Maintenance

Applies to Modulex Boiler Models:

•

MLX-303

•

MLX-454

•

MLX-606

•

MLX-757

•

MLX-909

•

MLX-1060

Description of Document:

A Fireside Inspection (24-month
maintenance) consists of an inspection
and maintenance to the burner modules,
flue collector, spark igniter, and flame
detector.

Modulex MLX Series Boiler

Modulex Fireside (24-Month) Maintenance Kit

Revised: 05/19/2011

Modulex Models and Associated Fireside Maintenance Kit P/Ns

Summary of Contents for Modulex MLX Series

Page 1: ...Maintenance Kit Kit 58019 12 NOTE For Modulex 12 Month maintenance instructions Annual Inspection see Document TID 0026 Procedure Modulex Fireside 24 Month Maintenance Applies to Modulex Boiler Models MLX 303 MLX 454 MLX 606 MLX 757 MLX 909 MLX 1060 Description of Document A Fireside Inspection 24 month maintenance consists of an inspection and maintenance to the burner modules flue collector spar...

Page 2: ...otice 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 Nor for incidental or consequential damages occurring in connection with the furnishing performance or use of this materi...

Page 3: ...he cover and at the end of these instructions REQUIRED Tasks Inspect igniter and flame sensor replace Igniter P N 95251245 Detector P N 95251246 Check flame detection circuitry See paragraph 1 3 Inspect and clean burner modules clean if needed see Section 1 4 Inspect flue collector clean if needed see Section 1 5 Wash heat exchanger clean if needed Inspect air filters replace if needed AERCO P N 9...

Page 4: ...ess to the spark igniter and flame detector for each heat module of the boiler see Figure 1 6 Refer to Figure 2 and Figure 3 and locate the installed locations of the igniters and flame detectors These Figures show a Modulex MLX 757 containing five 5 igniters and five 5 flame detectors NOTE The cover is secured with spring clips and pins to front back and side panels of the unit In addition two 2 ...

Page 5: ...AL GAS 4 7 to 5 3 9 1 to 8 8 100 ppm PROPANE 4 4 to 5 0 10 7 to 10 4 100 ppm Note that a reduction of airflow at the input may indicate the burners need cleaning but first check the flue outlet and the air intake for any physical obstruction If there is no obstruction then proceed with the maintenance procedures starting with unit disassembly per Instruction 1 4 1 on the next page Replacing the Sp...

Page 6: ...ttached with clips to the underside of the top cover Use care when disconnecting these ground wire clips Note that all lugs have capture spring clips that are released by pressing a small nub under the lug body 4 Remove the front panel from the boiler to provide access to the fan assembly cover Figure 4 5 Remove the screws from the various locations on the fan assembly cover A sampling of screw lo...

Page 7: ...side support panel and affix with one of the two screws previously removed 11 Lift up the fan group L by rotating it on the gas manifold axis and keep it up by inserting the support rods I attached to the frame in the holes M Figure 10 12 Access the condensate tray N Figure 11 and remove the cleaning plate O from the side opposite from the flue collector depends on which side it was originally ins...

Page 8: ...nternational Inc 100 Oritani Dr Blauvelt New York 10913 Phone 800 526 0288 Technical Instruction Document TID 0027_0A Figure 12 Fan Assembly Lifted to Access Burner Modules Figure 11 Accessing Condensate Tray Figure 10 Fan Assy L Support Rod I and Holes M Burner Modules ...

Page 9: ...lly running the cutter down three sides of the burner The photos in Figure 14 show the 1 cutter being run along the shorter front edge 2 along right long edge and 3 along left long edge 3 Next remove the burner by carefully rotating it upward ONLY along the left or right long edge axis 4 in Figure 14 Take care to avoid deforming the burner module as it is removed INSTRUCTION 1 4 2 NOTE Before remo...

Page 10: ...ter jet to wash the chamber out Use care to avoid wetting the electrical wiring 3 Inspect the flue duct and flue collector During this operation ensure that the condensate drain pipe is free of blockage so water does not accumulate in the tray Clean out the condensate tray of any scale or ash collected from cleaning the combustion chamber INSTRUCTION 1 4 3 Unit Reassembly After Maintenance 1 The b...

Page 11: ...ange You will need to use a 7mm socket wrench with universal joint and extender to reach and remove the nuts and bolts 3 Disconnect exhaust connector and exhaust connector gasket from the flue collector by removing the four 4 M5 20 bolts and washers shown in Figure 15 4 Inspect and then clean the flue collector using a water jet or wet cloth 5 Following inspection and cleaning refer to Figure 15 t...

Page 12: ...TID 0026_99 MLX 303 Fireside Maintenance Kit Kit 58019 07 MLX 454 Fireside Maintenance Kit Kit 58019 08 MLX 606 Fireside Maintenance Kit Kit 58019 09 MLX 757 Fireside Maintenance Kit Kit 58019 10 MLX 909 Fireside Maintenance Kit Kit 58019 11 MLX 1060 Fireside Maintenance Kit Kit 58019 12 AERCO International Inc 2011 Modulex Models and Associated Fireside Maintenance Kit P Ns ...

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