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Manual     2100-392
Page      21

COUNTERFLOW MODELS  –  FILTER
LOCATIONS

Counterflow models normally have filters installed in
the return air plenum above the furnace unless a
common return air/filter grille is used.

The electrical switch should be turned “off” before the
front door to furnace is removed.  After removing the
front door, remove the left side filter door in the upper
section of the furnace.  Refer to Figure 14 for proper
filter locations.

Figure 13 shows a typical installation of a 20 x 25 x 1
filter rack.  The same 14 x 23 cutout is required in the
furnace side, and the bottom of the filter rack is aligned
over the bottom of the 14 x 23 cutout.  The top of the
filter rack rises approximately 6 inches above the top of
the cutout.  The 3 inch depth of the filter rack provides
ample spacing between furnace side and leaving edge of
filter for the entire filter surface to be effective.

To remove filter from the filter rack (see Figures 12 &
13), remove the filter access cover and grasp the end of
the filter.

This filter is the high velocity type foam filter which
may be washed and used over and over.  Do not replace
it with a fiberglass disposable filter of the same size.

To replace filter, reverse the above procedure.

FIGURE  14

FILTER LOCATIONS FOR COUNTERFLOW MODELS

MIS-1341

Summary of Contents for FC085D36D

Page 1: ...RY OR DEATH FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE IMPORTANT NOTICE THIS FURNACE IS NOT INTENDED FOR USE AS A...

Page 2: ...ons 3 Figure 2 Hi Boy Models Dimensions 4 Figure 3 Counterflow Models Dimensions 5 Figure 4 Typical Installation Requirement Front Flue 7 Figure 5 Typical Single Inside Tank Installation 8 Figure 6 Pr...

Page 3: ...Calculation for ACCA Manual J Residential Winter and Summer Air Conditioning Duct Design for Residential ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection FOR MORE INFORMATION...

Page 4: ...of the furnace dry and reduce rusting An oil burner must have a generous supply of combustion air to operate properly The flow of combustion and ventilating air must not be obstructed from reaching th...

Page 5: ...a i D H J e z i S o N d e s U D 6 3 D 5 8 0 F L F D 6 3 D 5 8 0 R L F 3 2 3 2 4 1 7 4 4 1 7 4 4 1 0 4 4 1 0 4 0 2 x 2 2 0 2 x 2 2 6 1 x 2 2 6 1 x 2 2 t n o r F r a e R 6 6 4 3 4 1 5 1 x 0 2 x 6 1 1 x...

Page 6: ...C s g n i n e p O m u n e l P G a i D e u l F A h t d i W B h t p e D C t h g i e H E x D y l p p u S H x F 2 n r u t e R 1 e z i S r e t l i F D 6 3 D 5 8 0 H F D 8 4 D 0 1 1 H F D 0 6 D 0 1 1 H F 3...

Page 7: ...P G a i D e u l F A h t d i W B h t p e D C t h g i e H E x D 2 n r u t e R H x F y l p p u S 1 e z i S r e t l i F D 6 3 D 5 8 0 C F 3 2 2 1 9 2 6 5 0 2 x 2 2 9 1 x 8 1 6 0 2 x 0 1 0 2 x 5 1 j Washab...

Page 8: ...be handled by a duct s sealed to the furnace casing and terminating outside the space containing the furnace This is to prevent drawing possible hazardous combustion products into the circulated air...

Page 9: ...F L F 1 0 6 5 1 1 3 7 1 3 1 6 5 7 1 7 1 5 1 5 1 D 6 3 D 5 8 0 R L F 1 0 6 5 1 1 3 7 1 3 1 6 5 7 1 7 1 5 1 5 1 D 8 4 D 0 1 1 F L F 1 0 6 5 1 1 2 2 1 2 1 5 0 1 7 1 7 1 6 1 0 2 D 8 4 D 0 1 1 R L F 1 0 6...

Page 10: ...ls of the highest quality The controls consist of a high voltage Beckett solid state igniter a Beckett CleanCut oil pump with an integral solenoid valve and a Beckett R7184B primary control These cont...

Page 11: ...14 000 volt spark instead of a 10 000 volt spark of the iron core BECKETT R7184B PRIMARY CONTROL The R7184B Interrupted Electronic Oil Primary is a line voltage safety rated interrupted ignition oil...

Page 12: ...On any given call for heat the control will allow three ignition trials After the three trials the control will go into a soft lockout mode The LED will flash 2 seconds on and 2 seconds off when in th...

Page 13: ...es of taking the smoke tests and measuring the CO2 or O2 and flue gas temperature 7 The burner air adjustment shutters are factory set to the recommended start up settings as shown in Table 9 These se...

Page 14: ...securely 10 Measure the stack temperature Subtract the room temperature to obtain the net reading and use the Efficiency Chart Table 8 to determine the steady state efficiency FIGURE 6 PRESSURE GAUGE...

Page 15: ...5 7 9 3 7 6 2 7 7 1 1 6 4 8 8 0 7 8 5 5 8 1 4 8 7 2 8 3 1 8 9 9 7 5 8 7 0 7 7 6 5 7 2 4 7 8 2 7 4 1 7 0 1 1 7 0 8 8 5 6 8 0 5 8 5 3 8 0 2 8 5 0 8 0 9 7 5 7 7 0 6 7 5 4 7 0 3 7 5 1 7 0 0 7 3 0 1 TABLE...

Page 16: ...DE ADJUSTMENTS BURNER NOZZLE AND ELECTRODE ADJUSTMENTS Check nozzle size as to conformance to installation requirements Install nozzle by screwing into hexagon adapter Refer to recommended start up se...

Page 17: ...tal input rating of all appliances shall be provided TABLE 11 SQUARE FEET REQUIRED TO QUALIFY AS UNCONFINED SPACE l a t o T H U T B t u p n I e c a p S d e n i f n o c n U n I a e r A m u m i n i M t...

Page 18: ...BTU per hour 70 square inches per gallon per hour of total input of all appliances in the enclosure FIGURE 9 APPLIANCES LOCATED IN CONFINED SPACES ALL AIR FROM OUTDOORS NOTE Each air duct opening sha...

Page 19: ...e inches per gallon per hour of the total input rating of all appliances in the enclosure FIGURE 11 APPLIANCES LOCATED IN CONFINED SPACES ALL AIR FROM OUTDOORS INLET AIR FROM VENTILATED CRAWL SPACE AN...

Page 20: ...are designed to be controlled with any 24V heating or heating cooling thermostat The heat cool thermostats must be designed for independent heat cool transformer circuits to assure that the 24V transf...

Page 21: ...0 1 0 9 0 6 0 9 0 6 0 0 2 0 0 2 w o L w o L d e M 0 7 1 0 7 1 0 1 1 0 1 1 0 9 0 9 D 6 3 D 5 8 0 F L F 5 6 5 7 0 9 0 6 0 9 0 6 0 0 2 0 0 2 w o L d e M 0 3 2 0 3 2 0 4 1 0 4 1 0 1 1 0 1 1 D 8 4 D 0 1 1...

Page 22: ...counterflow models require a bracket installation and final filter location projects into return air plenum attachment for furnace See Figure 14 Refer to Figure 14 for Lo Boy models which have filters...

Page 23: ...uired in the furnace side and the bottom of the filter rack is aligned over the bottom of the 14 x 23 cutout The top of the filter rack rises approximately 6 inches above the top of the cutout The 3 i...

Page 24: ...is accessible from the rear of the furnace by removing the blower filter access door The electrical switch should be turned off prior to removing the access door Refer to Figure 15 below FIGURE 15 FI...

Page 25: ...e control Following is the method we recommend in checking the safety switch in this primary control A Flame Failure Simulate by shutting off oil supply manual valve while burner is on Within 9 second...

Page 26: ...ndependently from the mounting system to perform basic annual service and inspection The mounting system is completely adjustable so exact alignment between the burner tube and combustion chamber may...

Page 27: ...rom T T on primary control Remove 6 5 16 inch bolts from around front plate Next remove 2 5 16 inch nuts from upper right and left hand corners of the front plate Pull entire assembly straight back aw...

Page 28: ...er and will destroy the chamber Refer to the Cleaning of Furnace section for proper cleaning methods COMMON CAUSES OF TROUBLE CAUTION To avoid accidents always open main switch OFF position when servi...

Page 29: ...00 1200 1300 1400 0 0 1 0 2 0 3 0 4 0 5 External Static Pressure in Inches of Water CFM Standard Airflow HIGH MED LOW FH110D48D System Resistance Curves 800 1000 1200 1400 1600 1800 2000 0 0 1 0 2 0 3...

Page 30: ...ANCE CURVES FH110D60D System Resistance Curves 1000 1200 1400 1600 1800 2000 2200 2400 0 0 1 0 2 0 3 0 4 0 5 External Stactic Pressure in Inches of Water CFM Standard Airflow HIGH MED HIGH External St...

Page 31: ...0 1100 1200 1300 1400 1500 0 0 1 0 2 0 3 0 4 0 5 External Static Pressure in Inches of Water CFM Standard Airflow HIGH MED LOW FLF R110D48D System Resistance Curves 800 1000 1200 1400 1600 1800 2000 0...

Page 32: ...0 3 0 4 0 5 External Static Pressure in Inches of Water CFM Standard Airflow HIGH MED LOW FLR140D60D System Resistance Curves 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 0 0 05 0 1 0 15 0 2 0 2...

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