4. An installation as claimed in claim 2, wherein said first gas turbine is provided with a stop diaphragm having a respective sixth switch, operating at an emergency closure of the respective gas turbine and having two normally open contacts and one normally closed contact, the first normally...
the main or dead counterweight for counterbalancing a portion of the weight of the door, the door being shown as it appears when in closed position as it rests against the lintel; Fig. 7 is a simplified schematic wiring diagram for the motor, brake, limit switch, slack cable switch and ...
Mounting both the NTC thermistor probe and high-limit switch to the heat chamber Fabricating an enclosure for the circuit boards Installing the components and interconnecting wiring to the furnace The success of this design is due in large part to the Ametherm NTC th...
white is neutral, and green/copper is ground. You make the connection right inside the junction box built into the furnace, although you’ll want to mount a switch somewhere in the circuit so you
26 3.12 ELECTRICAL ELEMENT INSTALLATION – WOOD-ELECTRIC MAX CADDY (OPTIONAL) The high limit control is a manual reset thermostatic sensor that is located inside the electrical unit. The electric unit must be connected as shown on the diagram (see WIRING DIAGRAM). The connections must conform to...
Considering that the motor is operating in either direction and that the furnace for some reason is rotated too far, then the cam member 73 will open the contacts of the limit switch 76 to 2S deenergize operating coil 80 of the contactor 77, whereupon it opens and disconnects the motor ...
A limit control switch 42 is connected in series with the primary winding 43 of a control transformer 44 across the power supply leads L1 and L2. Switches 40 and 42 comprise thermostatic switches sensing the temperature of the air heated by the heat exchanger 14. Switch 40 closes to ...
Fig. 4 is a wiring diagram. In the drawing, the reference numeral I denotes the front wall of a furnace which has a combustion chamber 2 in which fuel is to be ignited by a flame travelling through the igniter pipe 3 to a point suitably located within the furnace. In the case of ...
of the rigid lead unit 16 and switch construction 13 of this invention. Also, it can be seen that the electrical furnace construction 10 of this invention provides for a high limit control of the heater unit 12 because of the unique bimetal member 89 of the sequencing switch construction 13...
An overall schematic diagram is shown in FIG. 6. Aside from blocks that are clearly labelled, FIG. 6 discloses a first timer line 62 and a second timer line 63 is connected to timer 82. A selector switch 64 enables selection between the furnace contact 65 and the air conditioner contact...