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Subject to change without notice.  Printed in U.S.A.
Copyright

by Unitary Products Group 1999. All rights reserved.

035-14289-000-A-1101

Code:  EBY, L, F

Supersedes: 035-14289-A-000-300

5005 York
Drive

Norman
OK
73069

Unitary
Products
Group

Summary of Contents for P*DHX12F0801

Page 1: ...ency or the oil supplier P HB UPFLOW INSTALLATION INSTRUCTION OIL FIRED WARM AIR FURNACES Supersedes 035 14289 000 A 300 035 14289 000 A 1101 CAUTION THIS PRODUCT MUST BE INSTALLED IN STRICT COM PLIANCE WITH THE ENCLOSED INSTALLATION IN STRUCTIONS AND ANY APPLICABLE LOCAL STATE AND NATIONAL CODES INCLUDING BUT NOT LIM ITED TO BUILDING ELECTRICAL AND ME CHANICAL CODES WARNING IMPROPER INSTALLATION ...

Page 2: ...ns provided the results obtained are in substantial agreement with and not less than those obtained using the procedure described in the manual LOCATION OF UNIT The furnace should be located such that the flue connection to the chimney is short direct and consists of as few elbows as possible When possible the unit should be centralized with re spect to the supply and return air duct work A centra...

Page 3: ...6F12001 are factory shipped for downflow installation Downflow If the furnace is to be installed in a downflow application a com bustible floor base must be used either 1CB0312 or 1CB0316 Refer to Figure 1 Horizontal For applying the furnace in a horizontal left or horizontal right application follow these steps 1 Rotate the furnace 90 degrees to the desired position 2 Remove three nuts and washer...

Page 4: ...SUPPLY AIR RETURN AIR P DHX12F08001 51 22 31 1 4 19 19 18 18 5 P DHX16F12001 62 22 1 4 22 1 4 20 1 2 20 1 2 18 18 6 LOWBOY SUPPLY AIR RETURN AIR P LBX12F08001 31 22 43 20 1 2 18 5 8 20 1 2 18 5 8 5 REAR P LBX16F12001 41 22 52 1 2 20 1 2 18 5 8 20 1 2 18 5 8 6 REAR P LBX16F14501 41 22 52 1 2 20 1 2 18 5 8 20 1 2 18 5 8 6 REAR P LBX20F19001 56 26 49 24 22 24 22 7 REAR TABLE 2 UNIT DIMENSIONS C E K H...

Page 5: ... 2 1 2 3 1200 P DHX16F12001 140 120 1 0 80 1 1593 12 0 15 14 11 x 10 1 2 1 20 x 20 3 3 1 2 4 1600 LOWBOY P LBX12F08001 91 80 65 85 1 1717 12 0 15 14 12 x 9 1 2 1 20 x 20 2 2 1 2 3 3 1 2 4 1200 P LBX16F12001 140 120 1 0 83 4 1585 12 0 15 14 12 x12 1 2 1 20 x 25 3 3 1 2 4 1600 P LBX16F14501 168 145 1 20 83 5 1585 12 0 15 14 12 x 12 1 2 1 20 x 25 3 3 1 2 4 1600 P LBX20F19001 231 190 1 65 78 0 2135 12...

Page 6: ...emperature sensitive fan switch is actuated by a helical bi metal sensing element enclosed in a metal guard and controls the circulating air blower This provides a delay between the burner ignition and blower start up to eliminate ex cessive flow of cold air when the blower comes on Blower shutdown is also delayed to remove any residual heat from the heat exchanger and improve the annual efficienc...

Page 7: ...e lift on a single line system is 8 ft Lift should be measured from the bottom outlet of the tank to the inlet of the burner Sizing a single line system is complex because of the difficulty estimating the pressure drop through each fitting bend and component in the line In general keep single line systems short as possible If the furnace is to be installed in a sus pended position a two pipe syste...

Page 8: ... amping of the direct drive blower motor Selecting a lower blower speed may cor rect this problem Direct drive blower speeds are adjusted by changing the hot wires to the motor winding connections Please refer to wiring diagram on Page 12 or the wiring diagram label affixed to the furnace THE NEUTRAL WIRE normally the white wire IS NEVER MOVED TO ADJUST THE BLOWER SPEED It is possible and acceptab...

Page 9: ...nd debris with a wire han dled brush and an industrial vacuum cleaner Before replacing the clean out covers inspect the gaskets If the gaskets are broken remove the remnants and replace with new gaskets Snug the cleanout covers DO NOT OVER TORQUE THE CLEAN OUT NUTS Replace the inner front panel clean out covers NOTE A radiator clean out assembly inadvertently dropped into the interior of the furna...

Page 10: ...URNER SET UP The burner air supply is adjusted to maintain the fuel to air ratio to obtain ideal combustion conditions Alack of air causes soft and sooty flames resulting in soot build up throughout the heat exchanger passages Excess combustion air causes a bright roaring fire and high stack temperatures resulting in poor fuel efficiency Preparations Drill a 1 4 test port in the venting ideally at...

Page 11: ...e flue gases are above the range the blower may require speeding up Stack temperature varies directly with the system temperature rise System temperature rise is the difference between the furnace outlet temperature and the furnace inlet temperature as measured in the vicinity of the connection between the plenum take offs and the trunk ducts Typical temperature rise values range between 65 F and ...

Page 12: ...H 1752 1691 1659 1593 1525 MED HIGH 1454 1454 1417 1379 1300 MED LOW 975 944 912 879 844 LOW 631 593 552 515 486 P LBX12F08001 HIGH 1917 1885 1820 1717 1608 MED HIGH 1590 1608 1590 1532 1430 MED LOW 1096 1096 1096 1068 1039 LOW 696 647 692 647 598 P LBX16F12001 P LBX16F14501 HIGH 1810 1740 1675 1585 1480 MED HIGH 1570 1540 1495 1445 1348 MED LOW 1090 1080 1070 1065 1036 LOW 710 700 690 665 614 P L...

Page 13: ...Unitary Products Group 13 035 14289 000 Rev A 0701 WIRING DIAGRAM ALL MODELS ...

Page 14: ...f necessary Ensure that erratic pressure readings are not caused by defective fuel oil lines Air getting into fuel oil lines or fuel oil line dirty clogged or in some manner defective Check oil lines Replace any compression fittings found with high quality flared fittings Check for any signs of oil leaks An oil leak is a potential source of air or contaminants Defective burner motor Check burner m...

Page 15: ...ure Adjust the oil burner combustion air band and draft regulator to gain the highest CO2 possible with a Bacharach No 1 smoke Heat exchanger partially clogged Check for soot build up in heat exchanger flue passages especially in the outer radiator Furnace will not warm home to desired tempera ture Air flow blocked by dirty air filter Clean or replace air filter Thermostat adjustments or location ...

Page 16: ...nge without notice Printed in U S A Copyright by Unitary Products Group 1999 All rights reserved 035 14289 000 A 1101 Code EBY L F Supersedes 035 14289 A 000 300 5005 York Drive Norman OK 73069 Unitary Products Group ...

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