York P4LBX20F19001 OIL Tank, Piping Installation, Electrical Connections, Oil Lines

Table 3: Minimum Chimney Base

Temperatures (°F)

Nozzle		Chimney Height (ft.)
	11		20	28	36
Chimney Thermal Resistance < R6
0.50	300		400	535	725
0.65	275		340	430	535
0.75	260		320	380	475
0.85	250		300	355	430
1.00	245		300	355	430
1.10	245		290	345	400
1.20	240		275	320	365
1.50	240		275	320	365
1.65	235		270	300	345
Nozzle		Chimney Height (ft.)
	11		20	28	36
Chimney Thermal Resistance > R6
0.50	185		200	220	250
0.65	175		185	205	220
0.75	175		185	195	210
0.85	165		185	195	205
1.00	165		185	195	205
1.10	165		185	195	205
1.20	165		180	190	200
1.50	165		175	185	195
1.65	165		175	180	190

<- less than, > - greater than

OIL TANK

Oil storage tanks must be selected and installed in compliance with applicable codes; in the United States, NFPA 31, Standard for the Installation of Oil Burn- ing Equipment, Chapter 2. and in Can- ada, CAN/CSA-B139, Installation Code for Oil Burning Equipment, Section 6. Observe all local codes and by-laws.

In general, the oil tank must be properly supported and remain stable in both empty and full condition. The oil tank must be fitted with vent and supply pipes to the outdoors. Refer to the above- mentioned codes for sizing. The vent pipe must be no less than 1¼ inches I.P.S., and terminate with an appropriate vent cap in a location where it will not be blocked. The fill pipe must be no less than 2 inches I.P.S., and terminate with an appropriate cap in a location where debris will not enter the fill pipe during oil delivery.

If located indoors, the tank should nor- mally be in the lowest level, (cellar, basement, etc.). It must be equipped with a shut-off valve at the tank outlet used for the oil supply. The oil tank must be located as to not block the furnace / room exit pathway. Observe all clear- ances specified in the above-mentioned codes.

PIPING INSTALLATION

In the United States, NFPA 31, Standard for the Installation of Oil Burning Equip- ment, Chapter 2.

In Canada, the entire fuel system should be installed in accordance with the re- quirements of CAN/CSA B139, and local regulations. Use only approved fuel oil tanks piping, fittings and oil filters.

Ensure that all fittings used in a copper oil line system are high quality flare fit- tings. Do not use compression fittings.

Do not use Teflon tape on any fittings.

Pressurized or gravity feed installations must not exceed 3 PSIG. Pressures greater than 10 PSIG may cause dam- age to the shaft seal. If the height of the oil stored in a tank above the oil burner exceeds 11½ feet, it may be necessary to use a pressure-regulating device ap- proved for this purpose.

The furnace may be installed with a one- pipe system with gravity feed or lift. The maximum allowable lift on a single line system is 8 feet. 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 compo- nent in the line. In general, keep single line systems short as possible. 2-stage oil pumps are not available for either the P*HMX or P*LBX furnaces. The following chart shows the allowable line lengths (horizontal + vertical) for single and two- line oil piping systems. All distances are in feet.

Table 4: Oil Lines

Copper Tubing Oil Line Length (Feet)

Single-Pipe Two-Pipe

Lift
	⅜”		⅜”
(Feet)		½” OD		½” OD
	OD		OD
0	53	100	68	100
1	49	100	65	100
2	45	100	63	100
3	41	100	60	100
4	37	100	58	100

Continue

5	33	100	55	100
6	29	100	53	100
7	25	99	50	100
8	21	83	48	100
9	17	68	45	100
10	13	52	42	100
12	- - -	- - -	37	100
14	- - -	- - -	32	100
16	- - -	- - -	27	100
18	- - -	- - -	22	88

In retrofit applications, where an existing oil line system is in place, a vacuum check will help determine the efficacy of the existing oil line system The vacuum in a system should not exceed 6” Hg. for a single pipe system, nor 12” Hg. for a two-pipe system.

NOTE: The oil burner requires the use of a bypass plug when converting from single-pipe to two-pipe oil piping sys- tems. See burner manufacturer’s instruc- tions.

All fuel systems should include an oil filter between the fuel oil storage tank and the oil burner. For best results, in- stall the oil filter as close to the burner as possible. When using an indoor oil tank, the oil filter may be installed at the tank downstream from the shut-off valve. If firing the furnace under the 0.65 gph rate, a 7 to 10 micron line filter should be installed as close to the oil burner as possible.

ELECTRICAL CONNECTIONS

The furnace is listed by the Canadian Standards Association (CSA). All models except for the P4LBX20F19001 are fac- tory wired and require minimal field wir- ing. The P4LBX20F19001 model is pre- wired except for the wiring connections to the blower motor. The wires from the furnace section are routed through the grommet in the blower section blower division panel, and then connected to the blower motor. In the United States, the wiring must be in accordance with the National Fire Protection Association NFPA-70, National Electrical Code, and with local codes and regulations. In Can- ada, all field wiring should conform to CAN/CSA C22.1 Canadian Electrical Code, Part 1, and by local codes, where they prevail.

The furnace should be wired to a sepa- rate and dedicated circuit in the main electrical panel; however, accessory equipment such as electronic air clean-

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