Exhaust Fan Interlock Wiring Diagram

Exhaust fan interlock wiring diagram. A ul listed electric duct heater will come w/ their own interlock control (usually dp or sail switch). To correct rotation of fans reverse any two leads from the 3 phase starter to the fan. Verify input power voltage before connecting to starters or contactors. Also two or more exhaust fans may be interlocked together so that they function simultaneously as the principal exhaust fan (abc 9.32.3.4.(3)).

Refer to the motor manufacturers data on the motor for wiring diagrams on. • temperature sensor(s) factory mounted in hood(s). Inst maint & wiring.qxd 5/03/2008 10:02 am page 7 Connect this black to the red in the switch box.

A wiring diagram is a simplified conventional photographic representation of an electric circuit. A dps across the mua fan should monitor the status of the fan, to shut down (interlock) the ef on a supply fan failure. I am wondering what wire guage to use and how i can interlock the bathroom fan with the furnace so when fan for bathroom is switched on, the furnace starts. The activation of the exhaust fan shall occur through an interlock with the cooking appliances, by means of heat sensors [emphasis added] or by means of other approved methods.

You need a 3 way switch for the exhaust fan 2 way for the ventilation switch. O belts must be correctly aligned and tensioned. Appliance wiring material is a classification of underwriters laboratories inc covering insulated wire and cable intended for internal wiring of appliances and equipment. Installation instructions for hazardous environment

However the fan must have sufficient capacity to provide 50% of the total ventilation requirements of the home (abc 9.32.3.4.(1)). The red wire from the 18/3 will go on the r terminal on the furnace and the no contact on the relay. While the ventilation switch is on, you can't turn the bathroom fan off by using the regular exhaust fan switch in the bathroom. Leave the existing black connected.

Installation diagrams inside the panel for details. Basically when the lab hood exhaust fan turns on the outside air unit needs to turn on via an interlocking mechanism. • exhaust and supply fans are interlocked and fire suppression system activated, supply fan(s) shut down and exhaust fan(s) continuous operation in fire (lights off in fire optional). • connect fan as detailed in the wiring diagram (section 11) • set the fan current limits as detailed in section 9.

The point is to have a manually operable ventilation switch. 1ø wiring diagrams ln e l1 l2 l3 s/c z2 u2 z1 u1 cap. Provide the following for exhaust fan systems. Other methods may also be acceptable.

The equipment is old so there is no type of control system. Exhaust fan interlock wiring diagram. You'll need a time delay off relay for the ef interlock so that the ef can run initially. Check voltage to ensure it matches the voltage stamped on the unit rating plate, and all wires are connected between unit

The diagram depicts one example of a proper method for interlocking the class 2 furnace fan control circuit with the power circuit of the principal exhaust fan. According to the fan currents + 2a. He is wanting to put new outside air units in the building and interlock them with some existing fume hood exhaust fans. Turning on any piece of cooking equipment under a hood will turn on the exhaust fan for that hood.

• exhaust and supply fan starters (3 phase) or contactors (1 phase). • the hood light wiring will also need to be wired to terminals, as indicated on the installation diagram. Interlock wiring diagram for exhaust fan and cooking equipment. • prewired with terminal strips and wiring diagrams.

A simple electrical interlocking control diagram is shown below. You turn it on, it starts a bathroom exhaust fan at the top of the house and the furnace blower at the same time. This is easy to do when the fan starter is in the auto position, the control system can power the damper actuator, and a damper end switch will close the auto control. Provide the following operational and interlock functions when the exhaust system is.

Turning off the last pi\൅ce of cooking equipment under a. Run a new cable (2 wire) from the 3 way switch box to the fan and connect only the black. Type i hood systems shall be designed and installed to automatically activate the exhaust fan whenever cooking operations occur. Collection of exhaust fan wiring diagram.

This will give you information as to how the unit operates. But i was told is the new code in alberta, canada. Electrical wiring and connections should be done in accordance with local ordinances and the national To ensure exhaust fans interlock switches are installed and wired to the control panel.

It's actually pretty useful for getting fresh. To interconnect the motor circuit in such a way, in which the second motor will not start until the first one run likewise the third one motor will not run unless the second one run and so on. Connect the power (black) to one lead of the timer and the black fan wire to the remaining timer lead. First i do not know the reason behind this since this bathroom fan exhaust to the outside (ducted to the outside).

• connect as detailed in wiring diagram (see section 11) gas valve: Remove the three way switch. And the switch must be centrally located (abc 9.32.3.4(4)). The green wire from the 18/3 will go on the g terminal on the furnace and depending what kind of relay you are using, will go on either a common terminal or on the other nc contact along with the black wire and then also jumpered to a no contact.

Exhaust fan interlock wiring diagram. Familiarize yourself with the sequence of operation and wiring diagrams.