Lennox SLO183UFV Series Скачать руководство пользователя

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have flue pipe as short and direct as possible. Where two
or more appliances vent into a common flue, the area of
the common flue should be at least equal to the area of the
largest flue or vent connector, plus 50% of the area of any
additional flues or vent connectors. Install a barometric
draft control (provided) and flue pipe according to instruc-
tions packed with control.

Inspect flue pipe annually. Clean soot or ash from flue pipe,
if necessary. If pipe is rusted, replace.

Barometric Draft Control Installation

Install the provided barometric draft control in the flue pipe

at least 12 inches

beyond the furnace flue outlet to pro-

vide space for flue gas sampling. The barometric draft con-
trol may be installed in either vertical or horizontal sections
of the flue pipe; however, it should be positioned

no more

than 18"

beyond the furnace flue outlet. Follow the instruc-

tions packed with the barometric draft control.

Alternate Side Flue Connections

The vent pipe may exit the top or sides of the cabinet. A
hole is provided in the top cap for top exit. For side exit, lo-
cate the center hole punched in the side of the cabinet. See
unit dimensions on page 2. Using it as the center point,
cut a 6 inch (152 mm) round hole in the cabinet’s side.

Install the barometric draft control within 18 inches of
the furnace flue outlet.

Attach the provided finishing

plate to cover rough edges.

ÏÏÏÏÏÏÏÏ

1" (25 mm) min

Figure 6

COMBUSTIBLE

MATERIAL

Radiation Shield Installation

SLO183UFV UNIT

(TOP)

SLO183UFV UNIT

(FRONT)

RADIATION

SHIELDS

FLUE

PIPE

UNIT

CABINET

NOTE 1−Radiation shields must be constructed of 24 gauge sheet
metal

minimum

NOTE 2−Radiation shields required when A is less than 9" (229 mm).

NOTE 3−Radiation shields should extend from the top of the unit to
the top of the flue pipe.

NON−

COMBUSTIBLE

SPACERS

RADIATION SHIELDS

(SEE NOTE 1)

7" (178

mm) min

12" (305 mm) min

SEE

NOTE

SEE

NOTE 2

Supply & Return Air Plenums

Secure return air plenum to unit using sheet metal screws.

NOTE − The following are suggested procedures that should
be followed when installing the supply air plenum.

1. Use sealing strips of fiberglass.
2. In all cases, the plenum should be secured to furnace or

evaporator cabinet with sheet metal screws.

3. Install supply and return air ducts as desired.

Oil Supply Line Sizing

Ensure that the restrictions of the piping system, plus any
lift involved, do not exceed the capability of the oil pump.
Use the following guidelines when determining whether to
use a single−or two−stage oil pump.

One−Pipe System

When using a one−pipe system (see figure 7), even with
the oil tank that is above the burner and a vacuum of 6"
(152 mm) Hg or less, a single−stage fuel pump with a sup-
ply line and no return line should be adequate.

Manual bleeding of the fuel pump is required on initial start
up. Failure to bleed air from the oil pump could result in an
air lock/oil starvation condition.

NOTE − As an extra precaution, cycle heating on and off
ten times after bleeding air from the oil pump. This will elim-
inate air in the gun assembly.

Figure 7

Oil Piping − One-Pipe System

ÓÓÓÓÓÓÓÓÓÓÓÓ

AIR VENT

FILL PIPE

OIL

TANK

FUEL PUMP

AUX
FILTER

SHUT−OFF
VALVE

8 ft (2.4 m)

Maximum

One Pipe Lift

To determine the correct tubing size for piping, refer to table 3
.

Table 3

One−Pipe Oil Line Sizing

Line Length

Pipe Diameter (OD Tubing)

0−50’ (15 m)

3/8" (10 mm)

51−100’ (15 m)

1/2" (12 mm)

Two−Pipe System

When using a two−pipe system (see figure 8) with the oil
tank below the level of the burner, use a single−stage fuel
pump in lift conditions of up to 10 feet (3 m) and/or a vacu-
um of 10" (254 mm) Hg or less. Use a two−stage fuel pump