HIGH EFFICIENCY OIL FIRED LOWBOY FURNACES ON HEAT EXCHANGER ON PARTS

A high efficiency basement style furnace designed with front or rear flue. Featuring variable firing rates to allow a wide range of heating capacities. Olsen lowboy furnaces are equipped with multi-speed direct drive blower motors (ex- cept BCL190) and factory installed air conditioning controls. The heat exchang- er has a rear breach configuration, with rear flue outlet that allows the furnace to replace older, less efficient lowboy models without extensive re-routing of flue pipes or modifications to the chimney. BML & BCL models are rear flue. BFL models are front flue.

CAT. NO. MFG. NO.

3H602 3H602 3H602 3H602 3H603 3H603 3H603 3H603

3H603F 3H603F 3H603F 3H603F 3H604 3H604

3H604F 3H604F 1H118C 1H118C

BML 80B BCL 120S

CAPACITY BTUH OUTPUT 59,500 76,500 87,000 98,000 79,000 90,000

BFL 120S

101,000 117,000 79,000 90,000

BCL145S BFL145S BCL190** ( 2 pcs.)

101,000 117,000 128,000 143,000 128,000 143,000 168,000 188,000

MFG. NO.

BML 80B BCL 120S BFL 120S BCL145S BFL145S

BCL190** ( 2 pcs.) A.F.U.E.% FLOW RATE CFM @ .50” E.S.P.

85.0 84.1 83.1 82.3 84.1 84.1 83.4 83.4 84.1 84.1 83.4 80.0 80.0 83.0 80.0 83.0 78.9 78.0

** These models have exposed burners, others are enclosed.

VOLTAGE MAX. FUSE AMPS DIMENSIONS H x W x D DUCT CONNECTIONS SUPPLY

115 115 115 115 115 115

15 15 15 15 15 15

32 x 22 x 51-1/2” 41 x 22 x 51-1/2” 41 x 22 x 51-1/2” 41 x 22 x 51-1/2 41 x 22 x 51-1/2” 56 x 26 x 49”

20-1/2 x 18-5/8” 20-1/2 x 18-5/8” 20-1/2 x 18-5/8” 20 1/2 x 18-5/8” 20 1/2 x 18-5/8” 24 x 22”

DUCT CONNECTIONS RETURN

20-1/2 x 18-5/8” 20 1/2 x 18-5/8” 20 1/2 x 18-5/8” 20 1/2 x 18-5/8” 20 1/2 x 18-5/8” 24 x 22”

FLUE SIZE WEIGHT

5” 6” 6” 6” 6” 7”

210 280 280 280 280 390

0.50 gph 0.65 gph 0.75 gph 0.85 gph 0.65 gph 0.75 gph 0.85 gph 1.00 gph 0.65 gph 0.75 gph 0.85 gph 1.00 gph 1.10 gph 1.20 gph 1.10 gph 1.20 gph 1.50 gph 1.65gph

1346 FILTER SIZE 20 x 20 x 1”

BLOWER MOTOR H/P 1/2

BLOWER MOTOR SPEEDS 4

EACH 1585 20 x 25 x 1” 1/2 4 1585 20 x 25 x 1” 1/2 4 1585 1585 1532 20 x 25 x 1” 20 x 25 x 1” 1/2 1/2 20 x 25 x 1” (2) 3/4 4 4 1(belt-drive)

$2,513.27 $2,513.27 $2,513.27 $2,513.27 $2,628.93 $2,628.93 $2,628.93 $2,628.93 $2,663.61 $2,663.61 $2,663.61 $2,663.61 $3,195.04 $3,195.04 $3,238.08 $3,238.08 $4,815.34 $4,815.34

BCF/BFL/BML

CAD CELLS

Cadmium sulfide cells (Cad Cells) are one of the most dependable items used in flame sensing. It is a simple devise that reacts according to the laws of physics. Simply put, cadmium sulfide is an electrical conductor and when exposed to light, it’s resis- tance changes. A “Cad Cell”, as we know it, is simply a specific sized metal surface coated with a specific amount of cadmium sulfide, with a plastic cover, and two metal stubs protruding thru the plastic cover to allow connection to both sides of the cadmium sulfide coating.

As the cad cell is exposed to light the ohmic resistance thru the cadmium sulfide drops. As we increase the light intensity, the ohmic resistance drops proportionally. Since the quantity of cadmium sulfide is specific when used in cad cells, we can deter- mine an approximate ohmic resistance we should read thru the cell between the two protruding metal stubs. When the cad cell is not exposed to light, the ohmic resistance should be in excess of 50,000 ohms. When the cad cell is exposed to normal light from a 75, or 100 watt service bulb, the resistance should drop below 10,000 ohms.

The next time you find a primary cad cell control that is malfunctioning, or acting erratically, you can easily check the cad cell before replacing the control.

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AIR CONDITIONING & HEATING EQUIPMENT