York P3DHX12F08001 P4LBX20F19001 Assembly Notes, P3DHX Series Downflow Configuration Notes

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Table C-3: System and General Troubleshooting continued

Problem

Possible Cause

Remedy

 

 

 

Airflow blocked or dirty air fil-

Clean or replace air filter.

 

 

 

ter.

Supply

air

temperature

 

 

Check all dampers. Open closed dampers including registers in

too hot.

 

 

Insufficient airflow.

 

 

 

unused rooms. Check system temperature rise. If temperature

 

 

 

 

rise is too high, speed up blower fan.

 

 

 

Excess airflow.

Check system temperature rise. Slow down blower fan if neces-

Supply

air

temperature

sary.

 

too cool.

 

 

Excessive duct losses.

Check supply air ductwork. Seal leaky joints and seams. Insu-

 

 

 

late ductwork if necessary.

 

 

 

 

 

 

 

 

Increase differential between fan control "fan off" and "fan on"

Supply

air

temperature

Fan control "fan on" setting too

settings. (L4064B, L6064A fan / limit controls only, no adjust-

low.

ments available for L4064W fan / limit control). Register air de-

too cool

during first mo-

 

flectors may help.

ments of furnace cycle.

 

Excessive duct losses.

Check supply air ductwork. Seal leaky joints and seams. Insu-

 

 

 

 

 

 

late ductwork if necessary.

 

 

 

 

P4LBX20F19001 ASSEMBLY NOTES

The P4LBX20F19001 oil-fired furnace is shipped in two pieces; the furnace sec- tion and the blower section. These two sections must be assembled together at the installation site.

1.Remove the crating and packaging materials from each section. Re- move the flue pipe flange gasket packed with the furnace section. The flue pipe gasket will be lying loose on the floor of the furnace sec- tion.

2.Remove the shipping brace from the furnace section flue pipe flange and cabinet. Remove and save all of the screws from the flue pipe flange, and the ten screws from the rear edges of the furnace section cabi- net, (5 per side). The screws will be re-used.

3.Place the furnace section and blower section in close proximity. Route the wiring harness from the base of the furnace section through the plastic grommet in the blower section blower division panel.

4.Position and align the flue pipe flange gasket between the furnace section and blower section flue pipe flanges, and hold it in place with a pair of awls or similar tool.

5.Begin fastening the flue pipe flanges together from inside the blower sec- tion to the furnace section with the

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six ¼-20 x ¾ inch screws saved from the removal of the shipping brace. Start each screw carefully so as not to damage the flue pipe flange gasket. After all six screws have been started, and proper gas- ket alignment has been confirmed, tighten all six screws evenly.

6.Align the screw holes in the blower section blower division panel with the screw holes in the furnace sec- tion cabinet rear edge, from which the ten screws were removed. The screws are started from the inside of the blower section to the furnace section. Tighten all ten screws evenly.

7.In a similar manner, start four of the extra screws removed and saved from the furnace section flue pipe flange into the screw holes along the top of the two furnace sections.

8.Remove the blower motor electric wiring cover plate. Connect the black lead from the wiring harness to motor terminal L1, the white lead to motor terminal L2, and the green lead to the motor casing ground terminal. Position the wires in the motor casing indentations and re- install the blower motor electric wir- ing cover plate.

P3DHX SERIES DOWNFLOW CONFIGURATION NOTES

When the P3DHX12F08001 or P2DHX16F12001 are installed in the downflow configuration on a wooden floor, it should be mounted on a sub- base.

The sub-base provides a means of main- taining the supply air plenum clearance to combustibles, and a means of mating the supply air plenum to the furnace.

Model

Sub-base

 

 

 

 

P3DHX12F08001

1CB1312

 

 

P2DHX16F12001

1CB0316

If the furnace is to be installed on a wood floor over joists on 12 inch or 16 inch centers, framing modifications are nec- essary.

Rough Size Openings:

P3DHX12F08001: 21” x 21”.

P2DHX16F12001: 22½” x 22½”.

The edges of the rough size opening must be well supported by the joist fram- ing to take the weight of the furnace.

The sub-base may support the supply air plenum. Fold a ¾ inch, 90° flange, then drop the supply air plenum through the sub-base opening. The flanges will rest on the sub-base, and the furnace placed on the flange will lock the plenum into place.

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Contents Installation Manual ContentsHeat Loss IntroductionLocation of Unit DOWN-FLOW Installation Horizontal Installation NON-SUSPENDED InstallationSuspended Installation AIR ConditioningCombustion AIR Chimney VentingCommon Chimney Problems Draft Regulator ControlPiping Installation Minimum Chimney Base Temperatures FOIL Tank Electrical ConnectionsCirculating AIR Blower Neutral Wire normally the white wire is Never Moved to ADJust the Blower Speed Procedure OIL BurnerBurner Electrodes OIL Burner SET-UPStack Temperature Furnace Installation SET-UPSmoke Test Note Maintenance and Service Operating InstructionsTable A-1 Beckett OIL Burner SET-UP BTU/HrDelavan Pressure Rate PlateTable A-3 Belt Drive Blower SET-UP Table A-2 Direct Drive Blower SET-UPOutput Motor Blower SET-UP Cooling Capacity Furnace Table A-4 Direct Drive Blower Characteristics Table A-5 Belt Drive Blower CharacteristicsFurnace Motor Temp CFM Blower Rise Speed Model FLAGeneral Dimensions P2LBX16F14501 General Dimensions P4LBX20F19001 General Dimensions P3DHX12F08001 General Dimensions P2DHX16F12001 Page Page R7184 Detailed Sequence of Operation Thermostat calls for heatOperation R8184N Notes R7184 LED Diagnostic LightPreliminary Steps Table C-2 R7184 Troubleshooting But Control locks out and starts Before Oil Table C-3 System and General Troubleshooting Problem Possible Cause RemedyLow oil pump pressure Check stack temperature. Stack temperatures will normally P4LBX20F19001 Assembly Notes P3DHX Series Downflow Configuration NotesP3DHX12F08001 Vestibule KIT Repair Part List P3DHX12F08001A Repair Part List P2DHX16F12001A Repair Part List P2LBX16F14501A Repair Part List P4LB Series Replacement Part Contact Information Page Unitary 5005 Norman Products York Group Drive 73069

P4LBX20F19001, P2DHX16F12001, P3DHX12F08001, P2LBX16F14501 specifications

The York P2LBX16F14501, P3DHX12F08001, P2DHX16F12001, and P4LBX20F19001 are high-performance HVAC units designed to meet diverse heating and cooling needs in both residential and commercial environments. These models are notable for their energy efficiency, advanced technologies, and user-friendly features.

The York P2LBX16F14501 is particularly known for its advanced inverter-driven scroll compressors that offer precise temperature control, enhanced efficiency, and significant noise reduction. This model is equipped with a multi-speed blower that helps maintain consistent airflow while ensuring optimum comfort levels. Its compact design allows for flexible installation options, making it suitable for various applications.

In contrast, the York P3DHX12F08001 focuses on delivering robust heating solutions, incorporating a variable-speed fan motor designed for improved energy savings and optimal performance. This unit excels in environments with fluctuating temperature demands, providing reliable heating without sacrificing energy efficiency. With built-in diagnostics, maintenance becomes more manageable, allowing for timely interventions to prevent excessive downtime.

The York P2DHX16F12001 stands out with its dual-fuel capability, allowing users to seamlessly switch between gas and electric sources depending on the prevailing energy costs. This versatility not only ensures year-round comfort but also offers substantial savings on energy bills. The model's high SEER (Seasonal Energy Efficiency Ratio) rating is indicative of its capability to deliver cooling efficiently during peak summer months.

Lastly, the York P4LBX20F19001 is designed for larger spaces, featuring a higher capacity that makes it ideal for commercial applications. This unit leverages advanced refrigerant technologies, enabling it to operate effectively across a wider range of temperatures. Its intelligent control systems can be integrated with building management systems, providing real-time monitoring and remote access to ensure peak operational efficiency.

All four models share a commitment to sustainable design and longevity, integrating modern materials that enhance durability and reduce the environmental footprint. Each unit is engineered with user comfort and energy efficiency in mind, representing York's dedication to innovation and quality in the HVAC industry.