Hood Control Panel (ECP) Option and Wiring Videos

Gas Valve Option

Video Transcript

0:00

hello my name is John elder and I work

0:01

for cast service this video will cover

0:04

the gas valve option that is available

0:05

in every hood control package this

0:08

option is normally turned off from the

0:10

factory but can easily be turned on

0:11

through the hood controls if an electric

0:13

gas valve is being used first let's look

0:16

at where to wire the gas valve every

0:18

hood control package has a gas terminal

0:21

so wiring is easy simply wire the two

0:23

wires from the gas valve one to the gas

0:26

terminal and the other to neutral or in

0:28

one terminal make sure that the valve is

0:31

rated for 120 volts AC as this is the

0:34

voltage that will be supplied to the gas

0:36

terminal when energized now that the

0:39

valve is wired let's take a look at how

0:40

to turn on the gas valve option this

0:43

programming process is applicable to

0:44

software versions 2.0 0 or higher for

0:48

older software versions refer to the

0:50

manual or contact tech support for

0:52

specific instructions to turn on the gas

0:54

valve option start by pressing the top

0:57

two buttons on the hood display the

0:59

display should change and save board

1:01

settings navigation is done with the up

1:04

down menu and inner buttons up and down

1:07

will scroll through menus and menu

1:08

options the inner button is used to

1:11

enter a menu and to enter menu options

1:14

the menu button will take you back one

1:16

menu level and eventually allow you to

1:19

save your changes

1:20

now that board settings is displayed

1:22

press the inner button and the display

1:25

will change and say options at this

1:27

point press either up or down until the

1:30

fire options menu appears press ENTER

1:33

and input the numerical password of one

1:35

two three four scroll through the menu

1:38

options until you reach the is gas valve

1:41

and abled option press ENTER and change

1:44

it from no to yes and then press the

1:47

inner button now press the menu button

1:49

several times until you're prompted to

1:51

save changes pressing the Save button

1:53

will save your changes and reboot the

1:55

system once the system reboots the top

1:58

right button will now say gas reset

2:01

pressing this button will energize the

2:03

gas terminal with 120 volts which in

2:05

turn energizes the gas valve the display

2:08

will also prompt you to check your

2:10

appliance pilot lights as the gas valve

2:12

should now be a

2:13

and gas is flowing

Hood Control Package Service Menus

Video Transcript

0:00

hello my name is John elder and I work

0:01

for cast service the purpose of this

0:03

video is to cover some of the basic

0:05

components in our hood control package

0:07

as well as some of the service menus

0:09

available in our latest software let's

0:11

start by looking at a hood control

0:13

package or electrical control package

0:15

the control package is usually mounted

0:17

in the utility cabinet at the end of the

0:19

hood but could be mounted on a wall

0:20

somewhere in the kitchen or even above

0:22

the drop ceiling remember to follow all

0:25

safe work practices when opening or

0:27

working in the control box keeping in

0:29

mind that there are several sources of

0:30

power feeding into the control package

0:32

these photos show some of the major

0:34

components contained in the control

0:36

package your control package will most

0:39

likely be different than the examples

0:40

here because all the control packages

0:42

are custom-built to the job specs I

0:44

won't cover every component in this

0:46

video but I do want to point out a few

0:48

things

0:49

there is one relay labeled re one that

0:52

will be energized all the time unless

0:53

the control packages in the fire mode

0:55

and if your fans are operated by a motor

0:59

starter which is a contactor and it

1:02

overload the overload will have a square

1:04

red and black button these are the tests

1:06

and reset buttons if you happen to have

1:09

an error message on your hood display

1:11

that says overload trip to zone 1

1:12

pressing the black button will reset the

1:15

overload now let's focus on the ECP mo3

1:19

and the service menus that are available

1:21

the first screen will say DC V which

1:24

stands for demand control ventilation

1:26

and below that there will be a number

1:28

which is the software version the board

1:30

is running under the screen there are

1:32

four buttons labeled menu up down and

1:34

enter if you press up or down buttons

1:36

you will be able to cycle through the

1:38

available menus the first menus

1:40

configuration this menus where all the

1:42

configuration parameters are set and

1:44

will be covered in a later video the

1:46

next menu option is date and time if you

1:49

press ENTER the board will display the

1:51

current date and time that was

1:52

programmed if you press up or down again

1:55

you would have the option to change the

1:56

time zone should you need to the next

1:59

menu option is system bypass this

2:02

function is for emergency situations

2:03

like the display on the front of the

2:05

hood not working or the fans not

2:07

responding or turning on at all

2:09

if you press ENTER and turn this

2:11

function on all the

2:13

check on the control board will be

2:14

bypassed and the system will turn on all

2:16

the lights and run all the fans at high

2:18

speed continuously until this function

2:21

is turned back off the display will also

2:23

show that the hoods are on by system

2:27

bypass the next menu fan monitoring may

2:30

or may not be available this menu will

2:33

give you information about the speed the

2:35

Control Board is telling the VFD to run

2:37

as well as information from the VFD on

2:39

amp draw press enter to select the fan

2:42

frequency or via or VFD amps then press

2:46

up or down to cycle through the drives

2:48

the next menu is false this menu will

2:51

show you a list of board faults that

2:52

have occurred with a time and date stamp

2:54

press ENTER to view the faults you can

2:57

also have an option to clear the fault

2:59

history by selecting clear faults the

3:02

last menus temperatures entering this

3:04

menu will allow you to cycle through

3:05

each temperature probe and read the

3:07

real-time temperature readings which is

3:09

helpful when troubleshooting hood

3:11

performance issues

Hood Control Package Start-Up

Video Transcript

0:00

hello everyone it's john elder again

0:01

with another service video for you

0:03

today we're going to be talking about

0:04

how to safely power up a control package

0:06

either a wall mounted package like you

0:08

have here

0:09

or if your package is mounted in the

0:10

hood and the utility cabinet doesn't

0:12

matter

0:13

follow some of these safe precautions

0:15

you should be able to safely power up

0:16

and minimize the possibility of damaging

0:19

equipment

0:20

be sure to follow all safe work

0:22

practices especially the use of ppe

0:24

all circuits should be de-energized

0:26

prior to any wiring or service

0:28

remember many of our controls will have

0:29

more than one circuit that will need to

0:31

be turned off

0:32

after de-energizing the circuit verify

0:35

that the circuit is dead

0:36

then lock out and tag the breaker

0:40

let's start by looking at an example of

0:41

a hood control package

0:43

every job is custom built so variations

0:45

are almost endless

0:46

but there are some common components

0:48

which we will review today

0:50

in every control package you'll find an

0:51

hmi and a circuit board

0:53

the hmi is typically located on the

0:55

front of the exhaust hood

0:57

but in some cases it may be mounted on

0:59

the door of the control package

1:01

if needed the hmi can be mounted in a

1:03

two gang box on the wall for better

1:05

access

1:07

other common components may include

1:09

contactors

1:10

variable frequency drives cellular

1:12

modules relays and power supplies

1:15

the key to truly understanding the

1:16

control packages by referring to the

1:18

wiring diagram attached to the door

1:20

this diagram is not a typical diagram

1:22

but rather it's specific to the job

1:25

and is invaluable to making sure that

1:27

everything gets wired correctly

1:29

let me take a moment to explain how the

1:30

diagram reads because it's slightly

1:32

different than most

1:34

i call this a point-to-point diagram

1:35

because it shows you wiring from the

1:37

power source to the terminal in the

1:39

control package

1:40

or from the control package to the

1:42

switch fan or component

1:44

for example here's the wiring for an

1:46

exhaust fan being controlled by vfd

1:49

you see here the high voltage wiring

1:51

comes from the breaker in the building's

1:53

breaker panel

1:54

to terminals l1 l2 and l3 in the control

1:57

package

1:58

these terminals are located here then

2:01

if you look at the wiring diagram again

2:04

you see the high voltage wire from the

2:05

vfd to the exhaust fan

2:08

or from terminals u1 v1 w1

2:12

located here to the disconnect on the

2:14

fan

2:15

the remainder of the diagram reads the

2:16

same solid lines are factory wired for

2:19

you and dashed lines will require field

2:21

wiring

2:22

one specific note on wiring ec motors to

2:25

our circuit board

2:26

is note that the p terminals shown here

2:29

are polarity sensitive

2:31

so double check this before applying

2:33

power

2:34

reversing polarity will damage the

2:36

terminals okay so once

2:38

you understand how to read the wiring

2:40

diagram go ahead and complete all the

2:42

field wiring to all the components that

2:43

are needed

2:44

but don't apply power there's a few

2:46

things we need to do to this control

2:48

package to set it up so that you can

2:49

safely apply

2:50

power if you follow these precautions

2:52

it's going to save you a lot of

2:53

headaches

2:54

if by chance something got miswired so

2:57

first if your control package has vfds

2:59

what you want to do is we want to unplug

3:01

these

3:01

just quick disconnects here this is the

3:03

load power from the vfd to the fan

3:06

what this does is it protects the vfd

3:08

should you get it mis-wired

3:10

if you mix up line and load here when

3:13

you turn on the breaker it's going to

3:14

short the vfd instantly it's going to

3:16

have to be replaced

3:17

with these quick disconnects unplugged

3:19

when you turn on the breaker one of two

3:21

things is going to happen

3:22

either the vfd is going to power up

3:24

normally at that point you know you have

3:26

everything right

3:27

you can plug these back in you're good

3:28

to go or

3:30

when you turn on the breaker if the vfd

3:32

do not power up as

3:33

expected then you know you have line and

3:36

load backwards

3:36

and this needs to be corrected before

3:39

you can go any further so turn the

3:41

breaker off

3:42

correct this wiring and then with these

3:45

unplugged

3:46

turn the breaker on just to be sure

3:48

again we're saving these vfds

3:50

from shorting out once you've verified

3:53

all wiring is correct you can apply

3:55

power to the control package

3:56

here a few situations that you may

3:58

observe once power

4:00

is applied and you try to run the fans

4:03

first if you power up the circuit board

4:05

but do not power up the vfds

4:07

the hmi will show you a modbus

4:09

communication fault

4:11

that simply means that the circuit board

4:13

can't see the vfd because it's not

4:15

powered up

4:15

and able to communicate if you have a

4:18

fan mounted vfd

4:19

it will have to be powered up and a cat5

4:22

communication cable

4:23

run from the control package in order to

4:25

communicate

4:27

another common issue that comes up

4:28

happens when you try to run the fan for

4:30

the first time

4:32

you may receive a modbus fault number 8

4:34

which is an overload fault

4:36

the first thing to check is fan rotation

4:40

fan rotation must be verified visually

4:42

because if backwards the fan will still

4:44

move air in the correct direction but

4:46

it'll only move half as much

4:48

and the amp draw will be considerably

4:49

higher

4:51

to change rotation swap any two legs of

4:54

power between the vfd and the fan

4:57

if rotation is correct the overload is

4:59

more than likely because the fan has not

5:02

been balanced and are simply running too

5:04

fast

5:05

another issue may see is when the hmi

5:08

reads fire

5:09

and the exhaust fans are running the

5:11

most common issue is that the fire

5:13

system microswitch has not been wired to

5:15

the terminals c1 and ar1

5:18

or was wired normally open rather than

5:20

normally closed

5:22

the last most common issue is the hdmi

5:24

showing missing temp sensors

5:26

this simply means that the circuit board

5:28

has been programmed for a specific

5:30

number of temp

5:31

sensors and is not detecting all of them

5:33

verify all your sensors got wired to the

5:35

terminals again the wiring diagram will

5:38

show you the number of sensors required

5:40

for your specific job

5:42

now that you have more information on

5:43

how to safely start up a control package

5:45

i hope your install will be less

5:47

troublesome

5:48

and less stressful if you have any

5:50

questions on this product or any of our

5:51

products feel free to call or email

5:54

thanks for watching

How to Wire an Electronically Commutated Motor (ECM) to a Hood Package

Video Transcript

0:01

hello everyone

0:03

with the growing popularity of ec motors

0:05

or electrically commutated motors

0:07

for their power output and their energy

0:09

savings these motors are becoming more

0:11

and more popular and are being used more

0:13

and more in hood ventilation

0:14

applications

0:15

the most common motors are fractionally

0:17

horsepower motors but the

0:18

availability of larger motors is

0:20

increasing there are several

0:22

options for controlling these motors but

0:24

in this video i'm only going to cover

0:25

one of those and that's wiring our ec

0:27

motor to one of our hood control

0:29

packages

0:30

be sure to follow all safe work

0:32

practices especially the use of ppe

0:34

all circuits should be de-energized

0:36

prior to any wiring or service

0:38

remember many of our controls will have

0:40

more than one circuit that will need to

0:41

be turned off after de-energizing the

0:43

circuit

0:44

verify that the circuit is dead then

0:46

lock out and tag the breaker

0:51

it's important to check the equipment on

0:52

the job site as well as the job site

0:54

schematics to see what type of equipment

0:56

you have and how it's going to be

0:57

controlled because there's several ways

0:59

to control an ec

1:00

motor the first is a controller mounted

1:02

on the fan itself which may control the

1:04

motor when power is applied

1:06

or controlled remotely the second way we

1:09

control ec motors is through a hood

1:11

control

1:12

package this video will only cover

1:14

wiring the ec motor to the circuit board

1:16

in the hood control package

1:18

in this scenario the high voltage power

1:20

will be applied to the fan all the time

1:23

and only the low voltage signal power

1:25

will be controlled

1:26

before we get to the wiring specifics

1:28

let's look at how an ec motor works

1:31

the motor receives high voltage power

1:33

just like a traditional motor

1:35

however in many cases the power is

1:36

present at the motor all the time and

1:38

fed directly from a breaker in the

1:40

building breaker panel

1:42

in order to run the motor must receive a

1:44

pulse width modulation or pwm signal

1:47

supplied by a fan motor controller or in

1:49

this case directly from the circuit

1:51

board in our hood controls

1:53

this low voltage signal is fed to the

1:55

motor control module

1:57

located on the motor which in turn

1:59

provides a soft start and controls the

2:01

motor speed

2:02

now let's look at how to wire a fan to

2:04

our hood control package

2:06

start by wiring the high voltage for the

2:08

motor straight to the breaker

2:10

so the fan will have standing power all

2:11

the time

2:13

then locate the low voltage wires in the

2:15

j box of the fan

2:17

and wire these with twisted shielded

2:19

pair to the hood control package

2:21

and land them on the correct p terminals

2:24

let's look at a real life example of how

2:26

this gets wired

2:28

looking at the job schematic we see the

2:30

high voltage listed here for each fan

2:33

and the low voltage listed here for each

2:35

fan

2:36

now let's take a detailed look at the

2:38

low voltage wiring

2:40

locate the low voltage wiring on the fan

2:42

and run that down to the hood control

2:44

package

2:45

these wires will be terminated on the

2:46

hood control package on the p

2:48

terminals located here note that the low

2:51

voltage wiring is polarity sensitive

2:54

if you get the polarity wrong and apply

2:56

power the corresponding p

2:58

terminals will be shorted there are four

3:00

sets of p

3:01

terminals and it's critical to get the

3:02

correct fan on the correct terminals by

3:05

matching the fan number to the schematic

3:08

matching the fan to the correct

3:09

terminals is critical to air balancing

3:12

and proper fan operation in a fire

3:13

condition

3:15

once wiring is complete apply power and

3:17

turn on the fans to test the fan

3:19

operation

3:21

if you have any questions on this or any

3:22

of our products feel free to call or

3:24

3:25

thanks for watching

3:33

you

Overload Tripped Fault

Video Transcript

0:00

hello everyone it's john elder again

0:01

with another service video

0:03

today i'm going to talk to you about a

0:05

common problem that we see here on the

0:06

hood display and that's a fault that

0:08

says overload trip to zone one or zone

0:10

two

0:11

um talk to you about what causes that

0:12

fault and how to reset it so don't go

0:14

away i'll be right back

0:16

remember to observe all safe work

0:18

practices and use the proper ppe

0:21

this video requires work in the hood

0:23

control package so it's recommended that

0:25

the power be turned off to all circuits

0:27

before any work is performed

0:29

note the hood control package will have

0:30

multiple circuits that should be

0:32

de-energized

0:34

let's start by talking about the fault

0:35

and what causes it

0:37

in some of our hood control packages we

0:39

use devices called contactors

0:41

to control the fan motors and depending

0:43

on the type of motor being used we may

0:45

also add an overload to provide a higher

0:48

level of protection

0:50

just to note that when a contactor and

0:51

overload are combined it's sometimes

0:53

called a motor starter

0:55

it's the overload that when triggered

0:57

will stop the flow of electricity to the

0:59

motor

0:59

and create the overload fault the

1:02

overload is triggered when the circuit

1:03

has too many amps

1:05

loses one phase of power or there's a

1:07

high voltage imbalance

1:09

which frequently happens when there is a

1:11

power outage or a low voltage situation

1:14

in the building due to things like

1:15

construction or thunderstorms

1:17

the other possibility is a bad wire

1:19

connection or a motor

1:21

which will require further

1:22

troubleshooting by a qualified service

1:24

person

1:25

once triggered the overload must be

1:27

reset manually which is what i'm going

1:28

to cover next

1:31

first we have to locate the hood control

1:33

package let me show you two different

1:34

packages we have on display here in

1:36

denver

1:38

the most common place to find a control

1:39

package is in the utility cabinet at the

1:41

end of the hood

1:42

along with the fire system lift up on

1:45

the door and pull outward to remove

1:48

there should be a gray control box

1:49

inside which contain the overloads

1:52

the other less common location for the

1:54

control package would be a wall mounted

1:56

one like this one here

1:57

the concept is the same though and the

1:59

overloads will be found inside

2:03

now let's open the control panel and

2:04

find the contactors and overloads

2:06

or motor starters remember it's

2:08

recommended to turn off all the power

2:10

to the panel before working inside the

2:13

door only needs a flathead screwdriver

2:15

to open

2:16

unless it was ordered with a key lock

2:18

once the door is open

2:20

you're looking for the contactor and

2:21

overload pictured here

2:23

the overload can be identified by the

2:25

two square buttons

2:27

one red and one black the red button is

2:29

a test button

2:30

and the black button is the reset button

2:33

if you have multiple overloads and don't

2:35

know which one is tripped there's a trip

2:36

indicator on the overload

2:38

or you can just press the black button

2:40

on each overload

2:42

if the overload's not tripped nothing

2:43

will happen

2:45

but if the overload is tripped you'll

2:47

hear a click and the fan

2:48

motor should start once the power is

2:50

restored

2:52

if the overload trips again right away

2:54

it's time to call a qualified service

2:56

technician to further troubleshoot the

2:58

problem

2:59

thank you for watching and i hope this

3:00

video gets you back up and running

3:02

quickly

Shunt Trip Breaker Wiring

Video Transcript

0:00

hello my name is John elder and I work

0:01

for cast service the purpose of this

0:03

video is to show you how to wire a shunt

0:05

trip breaker to one of our hood control

0:07

packages to control power to the

0:09

appliances under the hood during a fire

0:11

situation explain the differences

0:13

between a shunt trip breaker and a GFI

0:16

breaker as well as an alternative to

0:18

using a shunt trip breaker let's start

0:21

by identifying a shunt trip breaker a

0:23

shunt ER breaker contains an electric

0:26

coil and a plunger that when the coil is

0:28

energized the plungers operated and the

0:30

breaker is tripped mechanically the

0:33

breaker can be identified by having two

0:35

wires or terminals on the side where 120

0:38

volts gets applied to energize the coil

0:40

and operate the plunger it's important

0:44

to note that the shunt trip breakers are

0:46

different than GFI breakers GFI breakers

0:49

only have one pigtail wire usually white

0:51

that would get wired to the neutral bar

0:54

in the breaker panel and trips

0:55

electrically when a short is detected

0:57

note a GFI breaker cannot be wired to a

1:00

hood control package and operate because

1:03

the control package does not create a

1:05

short rather it sends out 120 volts to

1:08

energize a coil so remember breaker

1:11

selection is critical for proper

1:13

performance now let's look at a hood

1:16

control package on the right hand side

1:19

you'll find the terminal blocks find the

1:21

two terminals labeled st and n1 these

1:25

are going to be the terminals that will

1:27

provide power to the coil on the shunt

1:29

trip breaker wire the shunt trip breaker

1:31

coil to these terminals and when the

1:33

hood goes into the fire mode the

1:35

controls will energize terminal St with

1:38

120 volts the preferred method to

1:42

controlling the power to the appliances

1:44

under the hood during a fire is to use a

1:46

shunt trip breaker however in some cases

1:49

for whatever reason shunt trip breakers

1:51

are not available a contactor can be

1:53

used the coil voltage for the contactor

1:56

would come from terminals a R 1 and N 1

1:59

this will provide 120 volt control power

2:03

to energize the contactor coil until the

2:06

hood controls go into the fire mode at

2:08

which time the 120 volts will be removed

2:11

and the contactor will be D energized

Temp Sensor Wiring - Video 1

Video Transcript

0:00

hello my name is John elder and I work

0:03

for cast service purpose of this video

0:05

is going to show you how to wire up the

0:07

temp probes to our hood control package

0:08

how to identify the probes assignment

0:11

and its physical location before we get

0:13

started remember to follow all safe work

0:15

practices including the use of PPE be

0:19

sure to turn off all sources of

0:20

electrical power to the control package

0:22

remembering that many of our control

0:24

packages have multiple sources of power

0:26

we'll have 120 volt control circuit and

0:28

three-phase power for your VFDs or your

0:31

fans remember after turning off power

0:33

the VFDs may take several seconds to

0:35

fully power down now let's take a moment

0:38

to look at the wiring diagram and help

0:39

identify the probes if you look here on

0:42

the diagram in this example we have

0:43

three probes probe number one is the

0:46

room temperature probe 2 is the hood one

0:48

riser one and the third probe is shipped

0:51

loose for field install looking deeper

0:54

you can see we wire from the hood

0:56

control panel to the kitchen temp sensor

0:58

from terminals T 1 a and B 2 the room

1:01

temp sensor with 18 to Thurman stat wire

1:04

then from the hood controls to the duct

1:06

sensor t 2 a and B to hood 1 exhaust

1:09

riser 1 and then from hood controls to

1:12

duck sensor t 3 a and B to whatever

1:15

sensor was shipped loose in this

1:17

instance if you had more sensors they

1:20

would just be listed further on down T 3

1:22

T 4 T 5 and so on

1:24

now let's locate the terminals in the

1:26

control package if you look at the

1:28

circuit board on the top right corner

1:30

next to the battery you'll have a

1:32

terminal block there with yellow

1:33

stickers on it this one is marked room

1:35

hood 1 and hood 2 because we have three

1:38

probes in this example so the room

1:40

sensor would get wired again with 18 to

1:43

thermal stat wire two terminals T 1 and

1:45

T 1 a and T 1 B the hood probe would get

1:50

wired again with 18 - 2 T 2 a and B and

1:53

then so on and so on T 3 T 4 T 5 all the

1:58

way up to T 8 you would just continue to

2:01

wire these with 18 to thermal stat wire

2:04

on the appropriate terminals depending

2:07

on the location and the assignment

2:09

now let's look at the temp probes

2:12

themselves if you notice the temporal on

2:14

the right is the room temp sensor this

2:17

sensor should be mounted in the kitchen

2:19

on a wall and give an average

2:21

temperature of a room you want to make

2:23

sure you don't hang it on an outside

2:24

wall that's going to be cold all the

2:26

time or on a cooler wall it'll be cold

2:28

or an exterior wall that's gonna be hot

2:30

all the time or above the nice machine

2:32

it just needs to give a good average

2:34

temperature of the room the probe on the

2:36

left is an example of all of our

2:39

temperature probes these probes can be

2:40

located in the exhaust risers in the

2:42

hood they could be located in the supply

2:44

plenum they could be located in the

2:47

smaller AC portion of the supply plenum

2:50

these are located they're going to be

2:52

factory installed with a J box above and

2:54

you just can locate those again you run

2:56

it with a teen to Thurman stat wire and

2:58

land them on the appropriate terminals

Temp Sensor Wiring - Video 2

Video Transcript

0:01

welcome back everybody to another

0:03

service video

0:04

this video is going to talk about wiring

0:05

temp sensors in a hood control package

0:07

and the importance of getting it exactly

0:09

right

0:10

be sure to follow all safe work

0:11

practices especially the use of ppe

0:14

all circuits should be de-energized

0:15

prior to any wiring or service

0:17

remember many of our controls will have

0:19

more than one circuit that will need to

0:21

be turned off

0:22

after de-energizing the circuit verify

0:24

that the circuit is dead

0:26

then lock out and tag the breaker

0:30

i think it'd be helpful to start by

0:32

identifying the parts of a hood control

0:34

package

0:34

the first is the hood itself temp

0:37

sensors are going to be mounted in the

0:38

exhaust risers

0:39

or in the hood itself near a light

0:42

fixture the second portion is the psp or

0:45

perforated supply plenum

0:47

that's the large supply plenum that's in

0:50

front of the hood that delivers

0:51

dedicated makeup air down the front of

0:53

the hood

0:54

and that will have a temp sensor located

0:56

inside of it the second type is an ac

0:58

psp

0:59

or an air conditioned psp this has two

1:02

sections has a large sections

1:04

standard psp with a temp sensor but it

1:06

also has a small section that delivers

1:07

conditioned air into the kitchen

1:09

and it will also have a temp sensor

1:12

these

1:12

psp or ac psp are always shipped loose

1:15

so these sensors will always have to be

1:17

field wired

1:18

if you have multiple hoods you may have

1:20

some hood sensors that also have to be

1:22

field wired

1:23

if your system doesn't come with a psp

1:25

or an ac psp don't panic not every

1:27

system has it now

1:29

as you know from my other videos the

1:30

temp sensors get wired here to the t

1:32

terminals on the circuit board the

1:34

wiring diagram will show you which

1:36

sensors get wired where

1:37

so that when the system is complete

1:39

everything works the way it should

1:41

wiring the correct sensor to the correct

1:42

terminal is critical because they're

1:44

used to control the auto on function

1:46

as well as the fan speed in a demand

1:49

control ventilation or dcv system

1:51

in smaller systems where there is only

1:53

one exhaust fan and one supply fan

1:55

temp sensor wiring is pretty simple just

1:58

wire the temp sensors to the correct

1:59

terminals per the wiring diagram

2:02

in larger projects where there are

2:03

multiple hoods and fans it's critical to

2:05

wire the temp sensors to the correct

2:07

terminals

2:08

so the correct sensor will control the

2:10

correct fan

2:12

first let's look at the wiring diagram

2:14

each temp sensor is listed

2:15

on the diagram along with its location

2:18

the first sensor will always be the room

2:20

temp

2:20

sensor and will be wired to terminals t1

2:23

a and b

2:24

unless your system is using a wireless

2:26

sensor or a preset room temperature

2:29

there will be no wires on the t1

2:31

terminals

2:33

next will be the hood sensors in this

2:35

example we have three hood

2:36

sensors hood one riser one hood one

2:39

riser two

2:40

and hood two riser one the labels on

2:43

each hood will give you the hood number

2:45

and the riser on the left of the hood

2:47

when facing the hood is always riser 1

2:50

and riser 2 is always on the right just

2:53

match the correct sensor to the wiring

2:55

diagram

2:56

and to the correct t terminals and

2:58

terminate as always once the temp sensor

3:00

wiring is complete

3:01

it's recommended that you fully test the

3:04

functionality of the system to ensure

3:06

everything is running correctly

3:08

just a reminder only use a low

3:10

temperature heat source or a cold rag to

3:12

test the temp sensors

3:13

never use a torch or heat attempt sensor

3:15

for a long period of time

3:17

here's a hypothetical situation that

3:19

will emphasize the importance of making

3:21

sure you get the temp sensors wired to

3:22

the correct terminals

3:24

let's say you have a customer with two

3:26

exhaust hoods and two exhaust fans

3:28

one for each hood if you wire the temp

3:31

sensor in hood 2

3:32

to where the sensor for hood 1 should be

3:35

when you start your appliance under hood

3:37

3:38

like a solid fuel char broiler for

3:39

example the sensor will warm up

3:42

but the fan for hood 1 will speed up

3:45

if this happens you run the risk of

3:47

setting off the hood fire system because

3:48

you won't be moving enough air

3:50

and overheating will occur now imagine

3:53

your customer in this situation

3:55

he has a fire system discharge and the

3:57

cleanup involved

3:58

loss of product loss of sales from

4:00

having to close and so on

4:02

you don't want to be in that position of

4:03

telling the customer that something was

4:05

wired wrong

4:06

that's it it's that simple remember that

4:08

every job is custom built so there's no

4:10

two jobs alike

4:11

the wiring diagram on your job site is

4:14

critical to making sure that everything

4:15

gets wired and functions properly

4:17

if you have any questions about this or

4:19

any of our products feel free to call or

4:20

4:21

thanks for watching

4:28

you

Hood Control Panel (ECP) Option and Wiring Videos

Hood Control Panel (ECP) Option and Wiring Videos

Intro

Wiring

Programming

Intro

Hood Control Package

ECP MO3

Intro

Safety

Hood Control Package

Wiring Diagram

ECP Setup

VFDs

Applying Power

Closing

Intro

Safety

EC Motor Control Options

How an EC Motor Works

Wiring a Fan to a Hood Control Package

Closing

Intro

What Causes the Fault

What Causes the Overload

Locate the Hood Control Package

Introduction

Shunt Trip Breaker

Hood Control Package

Intro

Safety

Hood Control Package

Wiring Temp Sensors

Temp Sensor Importance

Closing