5D51 Series UNIVERSAL

FAN AND LIMIT CONTROL

Single element type --- regulates fan or blower operation and acts as high limit safety control.

Snap-Action switches give positive “on-off” contact action. Dial has individual pointers for quick adjustments of cut-in and cut-out settings.

Has manual fan switch. Fan range 50-265°F with a 15-50° adjust- able differential. Limit range 100-300°F with a 25°F fixed dif- ferential.

CAT. NO. MFG. NO. INSERTION EACH 5G084

5D51-78 11” $130.17

ELECTRICAL SAFETY NOTE Always shut off the power to any system being serviced!

This sound like common sense. But service techs are often rushed or reasons specific to a job can create a dangerous and life-threatening situation. Potential problems include:

a. The power on-off switch breaks the neutral wire, not the hot wire.

b. The switch is not functional and the power remains. c. The service person believes the contactor on the outdoor unit is open and no voltage is applied. In fact, the contactor may only break one leg of the power and the second leg is not broken.

24A34 Series

STACK-ON ELECTRIC HEAT SEQUENCERS

24 volt control of single or multiple stage

electric heating elements. Direct replacement for most Honeywell, Klixon, MARS, Gemline and Texas Instruments sequencers used as original equipment.

CAT. NO. MFG. NO. TIMINGS SWITCH EACH 3C111 3C112 3C113 3C114 3C115 3C116 3C118 3C120

24A34-1 24A34-2 24A34-3 24A34-4 24A34-5 24A34-6 24A34-14 24A34-15

1 1 1 1 2 2 4 1

1 1 2 2 3 4 5 1

$19.16 $29.85 $24.29 $22.39 $39.43 $49.45 $66.31 $26.10

d. The contact on one leg of a multiple pole contactor is welded shut and power flows thru the welded contacts, even though the contactor is in the open position. e. It is the knowledge that they are only working on the low voltage side of the system and the service person believes they will not come in contact with high voltage.

f. The line voltage is fed from a separate power source and the second power source is overlooked.

Always locate the power source and shut the power down. Al- ways confirm all power to the equipment is off with a reliable meter before attempting service. It only takes approximately 1/10th of an AMP to cause violent muscle contractions and severe pain. It only takes 1/5th of an amp to cause convul- sions and death.

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CONTROLS