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T30.30306.02
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1 - PRODUCT DESCRIPTION.................................................................................................................... 3 2 - DESIGNATION OF COMPONENTS ..................................................................................................... 4 3 - BOILER OPERATION..................................
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Model FCX oil fired boiler utilizes a sealed combus- A control panel assembly and all electrical con- tion system that operates at a temperature at which trols for operation of the boiler, including a wa- the flue products will condense. The flue products ter temperature thermometer in circuit 1 temperature is so low that the unit is suitable for use A manual water-mixing valve that can be mo- with PVC / Polypropylene flue pipes, which are offe- toriz
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21 20 19 18 17 22 14 3 24 1 2 View from above 17 18 19 21 22 2 1 16 26 25 3 15 4 14 7 5 23 13 20 6 12 8 8 9 11 10 Front view Rear view
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Circuit heating return or nd 2 circuit heating output st 1 circuit heating output Combustion air is drawn into the oil burner by the Water is circulated through the boiler heat exchan- burner fan through the air intake hose connected to ger and condenser circuits where it is heated by the the coaxial flue/combustion air intake separator combustion of the oil burner. Two independent wa- tube assembly. Heated air from combustion of the ter-heating circuits can b
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Ratings for Model FCX are provided in the following table: !" #$%& $ $# ' %(') "*+&'$'(%, Rated Output BTUH 76,000 Rated Input BTUH 81,250 Combustion Chamber Length Inches 8.98 Combustion Chamber Diameter Inches 11.5 Combustion Chamber Volume Cu. Inches 915 Combustion Prod. Circuit Volume Cu. Inches 3051 Flue Pressure Drop Inches H2O 0.10 Maximum Heating Service Pressure Psig 43.5 Max Heating circuit water temperature Deg. F 176 Water Overheat
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- To open Model FCX to access for installation, and/ or service, follow these steps : - Remove the control panel escutcheon molding A (2) by grasping it on both sides and pulling it outward towards you and up. The escutcheon will come free of the attachment clips leaving the con- 2 trol panel exposed. P - Remove the top cover of the unit (A) by lifting the cover at the front and rear to free the attachment clips, and then simply lift the cover straight up and
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Connection of the coaxial flue/combustion air piping "134 "431 % 5 "%& %' (& '(&$1 system is in the back of the unit to the separator #(%$1 " 1$'"
1"4(%,""! tube assembly. The combustion products are ven- ted from the boiler and condenser through the cen- ter of the coaxial tube, while the combustion air is supplied through the outside ring of the coaxial tube. Since Model FCX is a condensing boiler, flue pro- ducts exiting th
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1 7 (1 8('/*$4'$91 "+41(%, "134 "431 % ""!1$' "7 (%, ! %&
1"4 "1" ! %& "1" '34 A90.12172 Black N40.12165 25 - 45 deg Tile Tile N40.12166 35 - 55 deg Tile Tile Slate - N40.12167 35 - 55 deg Black Shingle "134 "431 % 5 "%& %' (&19"8 - joint fitting - 45 ° bend 90 ° bend ! %& "1" 3.15 inch 4.92 inch N40.28395 45 deg (80mm) (125mm) 3.15 inch 4.92 inch N40.28396 90 deg (80mm) (125mm) $)' %(%,&"11$ :"4'("%; (, ∅ !
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/00/ 34(&$1(%)'$11$'("% 6$#41 )< All flue-piping components must be assembled to provide an airtight flue/ combustion air system. The flue/combustion air system piping may be either horizontal or vertical or a combination of both, ob- Application of liquid soap over the flue pipes to be serving the following: joined will aid in assembly of the parts. The maximum unrestricted horizontal or verti- Typical installation examples appear in the illustra- cal flue length shall not be more
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/00/ 34(&$1(%)'$11$'("% 6$#41 ):&"%'; Options: - 1 90 deg concentric elbow Options: - 3 Concentric extensions - 1 90 deg concentric elbow - 2 45 deg concentric elbows - Concentric extensions - 1 concentric vertical terminal - 1 concentric vertical terminal - 1 sleeve tile roof flange - 1 sleeve tile roof flange - 1 roof plate - 1 roof plate #$6=> !': #;>> !': #; #$6=>!':#; ≤ !': #; >>!':#;
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/00/ 34(&$1(%)'$11$'("% 6$#41 ):&"%'; 90° elbow 90° elbow 45° elbow 45° elbow View from above View from above rear boiler rear boiler Options: Options: - 1 45 deg concentric elbow - 1 90 deg concentric elbow - 1 90 deg concentric elbow - 3 Concentric extensions - Concentric extensions - 3 45 deg concentric elbows - 1 concentric vertical terminal - 1 concentric vertical terminal - 1 sleeve tile roof flange - 1 sleeve tile roof flange - 1 roof plate - 1 roof plate
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/00/ 34(&$1(%)'$11$'("% 6$#41 ):&"%'; 90° elbow 45° elbow view from above rear boiler 1 in Options: - 1 45 deg concentric elbow - 2 90 deg concentric elbow - 1 concentric extension - 1 straight horizontal flue kit
Connection of the condensate drain piping system is to the back of the unit beneath the flue/combus- tion air separator tube assembly. The condensate drain tube provided in the unit is 1 - 19/32 inches (40 mm) O.D. to which the drain trap a
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Water circuit connections are made in the back of Isolation valves may be used in the various cir- the unit utilizing the four 1" male pipe thread cou- cuits to facilitate boiler maintenance without plings provided. Model FCX can be connected to va- having to completely drain each circuit. NE- rious comfort heating water systems as well as to a VER place an isolation valve between a pres- domestic hot water heating system if desired, obser- sure relie
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/00/ Various typical water circuits (cont)
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- Electrical power and control connections are made down caused by an unrelated electrical circuit fault, to pigtail leads that exit through a hole in the right the unit and any related electrical components rear of the unit (facing the front of the unit). should be connected to a separate branch circuit specifically dedicated for that purpo
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/00/ The hole in the right rear of the unit is a large flat Route the factory supplied main power pigtail leads oval. Mount a Listed 2 x 4 inch, "HandiBox" type through the connector from inside the unit and secu- junction box over the oval hole in such manner that re the connector clamp on the wires. part of the hole is left open. When installing the junc- Install a second cable or conduit connector in ano- tion box, center the box vertically over the oval hole ther knockout in the box
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- 2 Before starting normal operation of the boiler and freeze solution if appropriate. Open any shut- heating system, perform the following final installa- off valves in the system. tion procedures: Fill the condensate drain trap with water. Leak-check the flue/combustion air system to Leak-check the fuel oil supply system and minimize the likelihood of leakage. open any fuel shut-off valves. Leak-check the entire water system,
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- While the oil burner is adjusted at the factory, it is re- commended that the operating characteristics of the burner be determined at start-up and readjusted if necessary. Run the unit long enough at the burner maximum firing rate to make sure the burner has reached a stable maximum operating temperature. 7 THEN, check the burner and adjust as follows: Check to determine that the smoke spot number 6 does not exceed 0.5 with a Bacharach control
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It is recommend that the boiler and flue/combustion air system be inspected and maintained annually by a qualified technician.
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- To gain access to the inside of the unit, first remove plate by removing the screws in the rear and lifting. the control panel cover escutcheon by grasping it on Remove the control pa
