Page 2 - OIL-FIRED CENTRAL FURNACE; Installation, Operation, And Service Manual; read prior to installing the furnace.
OIL-FIRED CENTRAL FURNACE Installation, Operation, And Service Manual With Users Information Section Models: CHB68-112 CHC68-96 CLBF68-112 CLBR68-112 c WARNING : • Do NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. • Improper installati...
Page 3 - Contents
2 Contents SECTION PAGE Notice to the Installer .................................................................................................. 4 INSTALLATION GUIDELINES ...................................................................................... 5 Codes ...................................
Page 5 - Notice to the Installer; Installation of this oil-fired furnace
4 Notice to the Installer Installation of this oil-fired furnace must be performed by a qualified installer in accordance with all local codes and authorities having jurisdiction. In the absence of local governing codes, installation shall conform to these instructions and to the regulations of the ...
Page 6 - , across both ends of the casing and across the casing, near the
5 INSTALLATION GUIDELINES Codes All local codes and regulations take precedence over the instructions in this manual and shall be followed accordingly. In the absence of local codes, this installation must conform to these instructions and to the regulations of the National Fire Protection Associati...
Page 9 - always
8 Often, household chemicals contain chloride-bearing compounds. There are many compounds representative of this classification of chemicals. A few common examples are listed below. • Cleaning solvents • Varnish and paint removers • Bleaches • Fabric softeners • Water softener salt • Tile adhesives ...
Page 11 - Chimney Inspection; Chimney appears to be leaning to the side.; DO NOT install a manual damper in the chimney or vent connector.; The
10 Chimney Inspection The chimney, vent, or any passageway for the stack gases to flow to the outdoor atmosphere is a very important part of the heating system. No furnace, regardless of the efficiency of the design, can perform satisfactorily when the chimney to which it is connected is inadequate ...
Page 12 - Refer to Appendix D: Replacement Parts for sketches; not; be inserted beyond the inside wall; Draft Regulator
11 If desired, with the furnace flue elbow turned to the right, the standard furnace top front panel (p/n 52-17346-1) may be replaced with the top front panel from the rear flue lowboy model (p/n 52-17383-1). Refer to Appendix D: Replacement Parts for sketches of these parts. Contact your Crown dist...
Page 13 - Furthermore, the furnace blower compartment does not contain
12 Duct Work and Air Conditioning Design and installation of the duct system should follow the current guidelines of the Air Conditioning Contractors of America (ACCA) or the American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE). Refer to the Residential Duct Syste...
Page 14 - included). Connect the return air plenum to the filter rack
On the highboy furnace, it is necessary to cut the return air opening in the lower side, or rear, of the casing depending upon the needs of the specific installation, refer to Figure 3. Figure 3: Cutaway view of fan section of a typical highboy furnace. The side casings have each been pre-punched wi...
Page 15 - A room thermostat is; furnished with this furnace. However, a thermostat is required
14 Electrical Connections NOTICE: All field wiring must conform to local, state, and national installation codes. A disconnecting switch equipped with overcurrent protection rated at 15 A. (e.g. a time delay-type fuse or inverse time, circuit breaker) should be installed in the service line for shut...
Page 16 - be installed in a location where it is directly exposed to,; Combustion Chamber; NO other burners may be used in this application.
15 The room thermostat should be located on an interior wall in the natural circulating path of the room air. The thermostat should not be installed in a location where it is directly exposed to, • cold air infiltration, i.e. drafts from outside openings such as windows and doors, • air currents pro...
Page 18 - an insulating annulet (included with
Figure 4: Side view of correct burner insertion into combustion chamber 4) Push the burner flange gasket (included with the burner) on to the burner mounting plate threaded studs. Seat the gasket against the mounting plate. 5) Using fasteners supplied in the parts bag with each furnace, three (3) 5/...
Page 20 - When the furnace is installed in the horizontal configuration,; the oil burner
Horizontal / Counterflow Furnace Setup The horizontal / counterflow furnace is shipped from the factory upright for vertical installation (counterflow configuration). If the furnace is to be installed lying down on the right-hand or left-hand side (horizontal configuration), the positions of the oil...
Page 21 - the high limit
4) When the furnace is installed in the horizontal configuration, the high limit and fan control must also be located in the upper position on the casing when the furnace is placed in the final installed position, refer to Figure 7. If the control must be relocated, remove the cover of the control t...
Page 22 - To initially operate the furnace:
21 INITIAL OPERATION OF THE FURNACE Initial Burner Operation c WARNING: To avoid possible explosion, DO NOT attempt to light the burner if: • Oil has accumulated in the base of the combustion chamber. • The furnace is full of fuel vapors. • The combustion chamber is very hot. c CAUTION: The oil burn...
Page 24 - smoothly without excessive noise or smoke production.; Supply/Return Airflow and Air Temperature
10) Flue Gas Temperature – The flue gas temperature will vary depending on heat input rate, air temperature rise across the heat exchanger, and air flowrate through the furnace. To prevent excessive water vapor condensation from the flue gases, the gross flue gas temperature should not fall below 33...
Page 25 - b. Remove the blower compartment access door.; Figure 8: Blower Motor Terminal Blocks and Wiring
One way to measure the temperature rise across the furnace is to insert temperature measuring devices (e.g. thermometers) into the return air duct and into the supply air duct about 12 inches from the furnace. After the furnace has been firing continually for over 20 minutes, read the temperature di...
Page 26 - Standard Fan Speed for 105 MBTUH Input Rate:; auxiliary high limit temperature control; located in the blower; Always replace the blower compartment access door when; Restore electrical power to the furnace.
25 Furnace Limit and Blower Controls All furnaces are equipped with a combined thermostatic high temperature limit and blower (fan) control. The high temperature limit is set such that it does not permit a supply (discharge) air temperature above 200ºF. The thermostatic fan control should be set so ...
Page 27 - equipped, the cooling system and the circulating air blower.
26 Room Thermostat Most room thermostats are equipped with user adjustable, or selectable, levels of heat anticipation. This feature helps to reduce the amount of room air temperature overshoot that occurs after a heating cycle. To adjust the heat anticipator, measure the electrical current output o...
Page 29 - Testing an electronic ignition
28 3) Confirm the room thermostat is wired correctly, set on the “HEAT” mode, and “calling for heat”. 4) For all primary controls, lockout can be confirmed by measuring voltage from the oil primary safety control to the burner motor. If none, depress the oil primary reset button. [On the Honeywell o...
Page 31 - ) Confirm there is 120 VAC at the blower motor terminal block.; is not; 20 VAC at the blower terminal block, measure the; is; 20 VAC at the blower terminal block, either the run; Symptom: Blower cycles on and off after the burner has shutdown.
30 6) Measure the draft at the point where the vent connector attaches to the heat exchanger flue pipe. With the burner operating, the stack draft should not exceed 0.05 in. W.G. If the stack draft has been adjusted above this value to give the proper overfire draft, the heat exchanger will require ...
Page 32 - Flame Sensor (“Cad Cell”) Checkout Procedure
31 Flame Sensor (“Cad Cell”) Checkout Procedure On the Honeywell oil primary control, to check the electrical resistance of the flame sensor (referred to as a cadmium sulfide photocell, or “cad cell”), depress the reset button on the oil primary safety control while the burner is firing. The oil pri...
Page 33 - the cad cell is an integral part of the oil
32 On the Riello 40-F3 burner only, the cad cell is an integral part of the oil primary control. If replacement of the cad cell is required, the entire primary control must be replaced. Replacement Parts Appendix D of this manual contains a list of replacement parts available for these furnaces.
Page 37 - Do not try to operate this or any other nearby appliance.
36 USERS INFORMATION c WARNING: • The area around the furnace should be kept free and clear of flammable vapors, liquids, and material, especially papers and rags. • NEVER burn garbage or refuse in the furnace. NEVER try to ignite oil by tossing burning papers or other material into the furnace. • T...
Page 39 - to promote mixing of the additive with the; Never block off or restrict the supply of air to the furnace.; On the highboy and lowboy furnace models,; Exterior Of Furnace:; The exterior of the furnace should be inspected for signs of
38 • Annually, have a bottom sample from the fuel oil tank taken for analysis. If present in excessive quantities, sludge and water should be removed. Fuel oil additives may be of benefit in helping to resolve some problems that are indicated by the analysis. In severe cases, tank cleaning may be re...
Page 41 - APPENDIX A: SOURCES FOR REFERENCED STANDARDS; Air Conditioning Contractors of America
40 APPENDIX A: SOURCES FOR REFERENCED STANDARDS 1. Air Conditioning Contractors of America 1712 New Hampshire Avenue, N.W. Washington, D.C. 20009 http://www.acca.org/ 2. American Society of Heating, Refrigeration, and Air-Conditioning Engineers, Inc. 1791 Tullie Circle N.E. Atlanta, Georgia 30329 ht...
Page 42 - APPENDIX B: ELECTRICAL DIAGRAMS
APPENDIX B: ELECTRICAL DIAGRAMS F or y our s a fety , r ead thi s i nfor m a ti o n b e for e o p e rat in g th is fu rnac e. W AR NI N G : Fa il u re t o f o llo w t h es e in s tru c tio ns m a y re s u lt in a f ir e or e x p los io n c a us in g pr op e rty d a m a g e , pe rs ona l inj u ry , o...
Page 44 - APPENDIX C: SPECIFICATION SHEETS
APPENDIX C: SPECIFICATION SHEETS M odelHeat Input Rate (BT UH): 140000 * 119,000 105,000 84,000 Nom inal T herm al Efficiency (% ):Heating Capacity (BT UH): 115000 * 98,000 87,000 70,000 Nom inal T em p. Rise (deg. F.):M inim um AFUE Rating (% ):G ross Heat Exchange Area (sq. ft.):Casing H eight (in...
Page 48 - Lowboy Front Flue Model
Page 49 - Lowboy Rear Flue Model
Page 50 - Horizontal/Counterflow Model
