The furnace controlling thermo-electric switch has a heating resistor in series with a switching contact of a thermal timing switch in its rest position. A relay energisable across this switching contact controls by one of its switching contact the motor of a fuel pump. Its switching position ...
The present invention discloses a two stage furnace control. The control includes a gas valve, an ignitor, a low pressure switch, a high pressure switch and a control unit for enabling the inducer fan
If the relay isn’t opening, the blower/fan can’t start. In this case, you can troubleshoot by testing the relay.To do this, you’ll bypass the relay to see if the fan will run on the direct power from the battery. If the fan functions using direct power, then you know that ...
8665-5701Booster RelayAllBDA, ADA 7975-3771A/C RelayAllBDC, ADC 7956-5771Damper AssemblyAllBDA, ADA 7624A3591Upper Limit Switch (manual)AllAll 7990-3591Upper Limit Switch (auto)AllAll 7975-3281Fan SwitchAllBDC, ADC, BDA, ADA Below is a common parts list for the following furnace models:...
And a week later, here’s that tested circuit committed to a soldered board and installed. This shot shows the new fan relay and associated wiring at the lower right, the two added wire nuts where I needed to splice into the existing wiring, and the board attached to the frame...
The electric control system is composed of programmable controller PLC, man-machine interface system, thyristor voltage regulator, vacuum meter, voltmeter and ammeter, DC regulated power supply, air switch, contactor, relay, button, indicator light, etc., so as to real...
The electric control system is composed of programmable controller PLC, man-machine interface system, thyristor voltage regulator, vacuum meter, voltmeter and ammeter, DC regulated power supply, air switch, contactor, relay, button, indicator light, e...
a电气仿真、开关柜、继电保护、测量电气、电度表的接线 Electrical simulation, switch cabinet, relay protection, survey electricity, electric meter wiring[translate] a网速有点慢 Net fast a little slow[translate] a好的,去睡觉吧,我也睡了。亲爱的晚安 Good, sleeps, I also rested.Dear good night[trans...
Switch 1R-2 is closed to energize the outdoor fan motor 34. In the ordinary system, if TH-3 were open, due to residual furnace heat, a circuit could not be completed (through line 87, terminal 2, switch Q3, and terminal 7) to the compressor relay. However, in this system, switch ...
It is composed of fan, frequency converter, manual butterfly valve, low pressure switch, air, gas and liquid separator, etc. 4.2 The air supply adopts two air supply channels, and the fan power is 7.5kw. The fan adopts centralized control and interlocking control with the burn...