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Negative Pressure
Operating Manual
6441 SE JOHNSON CREEK BLVD. PORTLAND, OR 97206 (503) 774--6000 SKUTT@SKUTT.COM
www.skutt.com
Revised 7/07/15
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2
Table of ConTenTs
ConTenTs
Introduction ........................................................................... 3
Setup ..................................................................................... 4
Standard EnvirovEnt 2 inStallation ....................................... 4
vEnt HolE CHart .......................................................................6
dual intakE kit .........................................................................9
vEnting 2 kilnS .........................................................................9
Custom Installations ............................................................. 9
vEnting oval kilnS & kilnS ovEr 12 CubiC FEEt .................10
additional duCting rEquirEmEntS .........................................10
uSing CEntral duCting ........................................................... 11
CEiling mounting .................................................................... 11
SidE mounting ......................................................................... 11
Operation .............................................................................. 12
Troubleshooting .................................................................... 13
Accessories ........................................................................... 14
Specications ........................................................................ 15
2
InTroduCTIon
Congratulations
Congratulation on your purchase of the newly designed EnviroVent 2. The EnviroVent 2 is a Downdraft Ventilation System designed to extract fumes from your electric kiln and vent them outdoors before they have a chance
to enter the room. Because it is a DownDraft Ventilation System the EnviroVent 2 also improves the ring atmosphere in the kiln while it is protecting you from the odorous fumes that can be emitted from certain clay bodies
and glazes when they are red. Here is what you get:
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• True Downdraft Venting
• Ability to Vent 2 Kilns
• Spring Loaded Plenum Cup
• Vent Up to 24 Cubic Foot Kiln
• Corrosion Resistant Ducting
• Mounts Away From Heat
• UL Listed Safe
• No Vibration to the Kiln
• Potential to Control With Kiln
How It Works
A designated number of holes are drilled in the lid and oor of the kiln either in the factory or on location. A
spring loaded plenum cup (see diagram on page 4) is placed under the kiln and tensioned between the oor of
the kiln and the oor under the kiln. The holes in the oor of the kiln are drilled in a tight pattern so the plenum
cup can cover them all. The other end of the cup is connected by 3” ducting to a fan which is generally mounted
on the wall. On the opposite end of the fan the air is ducted through the wall to the outside air.
The plenum cup has 3 additional holes from which it draws room temperature air to mix with the heated air from
the kiln. This serves 2 purposes. Since the kiln air is mixed with cooler room air the air coming out of the end of
the vent is never hotter than an average hair dryer. Secondly, the holes in the plenum cup are sized to reduce the
vacuum on the kiln chamber so only a small amount of air is moving through the kiln. This ensures the ring
time is not aected and the ware is not at risk.
Better Heat Uniformity
Most people are aware of the fact that heat rises. The EnviroVent 2 helps compensate for this rising heat by
creating a ow of air moving back down the kiln chamber. As the air moves in a downward direction it is also
deected by ware and shelves causing turbulence. This turbulence helps move heat to cooler areas of the kiln.
Better Kiln Atmosphere
When you are ring in an electric kiln you are ring in an Oxidation atmosphere. The EnviroVent 2 helps bring in
more oxygen and ush out fumes which can form a reduction atmosphere. A reduction atmosphere can be desirable in a gas or wood red kiln however it only causes problems in an electric kiln. Your elements will last longer,
your glazes will be clearer and brighter and you will help prevent glazes migrating between pieces.
Better Working Environment
Prior to the introduction of venting systems it was still necessary to vent the kiln. This was done by propping the
lid open with a wedge of brick until the kiln reached 1000 ˚F (538 ˚C). Not only was this inconvenient, it also radiated the fumes right into the room.
A Better Vent
A new benefit of the EnviroVent 2 is that it is now a Negative Pressure System. This means that since the motor
is pulling the air instead of pushing the air, if there is ever a hole in the ducting the fumes will not escape into the
room. Also since the motor is now mounted away from the kiln it is protected from the heat of the kiln and the
kiln is protected from possible vibration from the motor.
A unique feature that no other vent on the market has is that the plenum cup is spring loaded. The floor of your
kiln will have a tendency to cup when it heats up. This cupping can compromise the seal and reduce the pull of
air on other models. With the EnviroVent 2 the Spring Loaded Plenum Cup ensures a tight seal throughout the
entire firing.
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4
4
seTup
Standard EnvirovEnt 2 inStallation
This section of the manual covers standard installations of The EnviroVent 2 on a single top loading, multi-sided,
electric kiln with a chamber size under 12 cubic feet. A Dual Intake Kit is available for venting a single kiln over
12 cubic feet or two kilns with chamber volumes each at or under 12 cubic feet. The maximum chamber volume
that can be vented with one motor is 24 cubic feet. For instructions on venting two kilns, kilns greater than 12
cubic feet and other custom installations consult the Custom Installations section of this manual.
As with any change in ring routine, we recommend that you closely follow all instructions and monitor your rings with witness cone groups on each shelf of your kiln both before and after you install the EnviroVent 2. If you
have any questions, please contact your supplier.
EnviroVent 2 Contents
Blower Motor w/6 ft. Power Cord w/In-line Switch
Floor Mount Plate
8” x 12” Mounting Plate
8 ft. x 3” Flexible Aluminum Duct
Spring Loaded Plenum Cup Assembly
Cast Plenum Cup
Fiber Gasket
Plenum Stand w/Base
Plenum Spring
Blower Inlet Tube
Blower Discharge Tube
3” to 4” Connector
Blower
W/Motor
Rain
Hood
Cut as
Necessary
3 1/8" Cutout
in Wall
Operating Manual
Mounting Hardware
4 - #10 x 1 ½” Sheet Metal Screws
4 - 8-32 x ¼” Screws
4 - 8-32 Lock Washers
4 - 8-32 Hex Nuts
4 - 1/8” x 2” Toggle Bolts
1 - 1/4” twist drill
1 - 3/16” twist drill
2 - Hose Clamps
Envirovent 2
Typical Installation
3" x 8" Discharge Tube
Hose
Clamp
115 volt
Cordset
w/Switch
3" Diameter
Flex
Tube
Plenum
Cup
Cup Stand
Hose
Clamp
With Spring
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seTup
StEp 1 - prEparation
• Unplug the kiln
• At the time of purchase it is possible to order the kiln factory drilled. If your kiln has already been drilled for
the EnviroVent 2 by Skutt, you may skip to Step 6.
• Before drilling the holes in the kiln it will be necessary to empty all of the ware and shelving from the chamber.
• Nearly every Skutt kiln uses a 8” high stand. The EnviroVent 2 is designed to t under this 8” stand. If your
stand is lower you can either shim the legs until it is 8” o the ground or replace it with a correctly sized Skutt
Stand. If your stand is higher than 8” you can shim the plenum cup up so the bottom of the base is 8” from
the bottom of the kiln or replace the stand with one with 8” clearance.
• If your kiln has been previously drilled for an EnviroVent or any vent other than an EnviroVent 2, it will be
necessary to patch the existing holes before drilling new ones. Failing to patch incorrect holes in the kiln
oor could cause the vent not to perform as designed. It is usually not necessary to patch holes in the lid
unless they are drilled further than an inch away from the kiln wall. The amount of air vented is regulated by
the holes in the oor so additional holes in the lid will not aect performance but could aect your ability to
test the vent. See the Testing section of this manual. If you nd that you need to patch holes in the lid follow
the instructions below.
5
Patching Existing Holes
• Disassemble the kiln to allow full access to the kiln oor. (This will need to be done to remove an existing
EnviroVent anyhow).
• Cover one end of the openings to existing holes with tape.
• Use Skutt Sairset (part# 0290) to ll the holes through the uncovered opening. Use a paper clip or element pin
to help ll the hole. When you can’t get any more in the hole use a spackling knife to clean up the excess cement.
• Turn the kiln oor over, remove the tape, and ll any voids with Sairset.
• Re-assemble the kiln and allow the patch to dry for 1 hour before turning on the vent.
StEp 2 - dEtErmining thE numbEr, SizE and location of vEnt holES
Use the Vent Hole Chart and Location Diagrams to determine the number, size and location of the holes for your
particular kiln. The chart and diagrams are based on standard multi-sided top loading electric kilns greater than
1 cubic feet in size. If you are planning on venting a kiln smaller than 1.1 cubic feet please contact Skutt for hole
drilling instructions.
The Vent Hole Chart refers to the number of “sides” a kiln has to determine the chamber width. This number
refers to the number of brick used to form the circumference in a round or oval shaped kiln. This measurement is
fairly standard between brands. Some kilns with 3” brick have smaller diameters but will not change the number
or size of the holes drilled.
Kilns that are square or rectangular with multiple bricks per side will not t this rule. For these kilns nd out the
total cubic feet of the kiln and use the closest value in the chart.
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vEnt holE chart
Kiln Chamber
Depth
Drill This Many
Holes In Slab
Drill This Many
Holes In Lid
Drill Size Kiln Cubic Feet
714 and GlazeTech 1 2 3/16” 1.1 thru 1.4
Eight Sided
14” 1 2 3/16” 2
18” and 22” 1 2 3/16” 2.3 thru 3.2
27” 2 3 3/16” 3.5 thru 3.9
Ten Sided
14” 2 3 3/16” 3.5
18” 2 3 3/16” 4.2 thru 4.6
27” and 22” 3 3 3/16” 5.3 thru 7.0
Twelve Sided
14” 1 2 1/4” 5
18” 1 2 1/4” 6.6
27” and 22” 2 3 1/4” 8.1 thru 9.9
31” 2 3 1/4” 11.6
StEp 3 - drilling holES in thE kiln floor
• Locate and mark the center of the kiln oor.
• Use Diagram #1 as a guide to drill the appropriate hole(s) in the kiln
oor. Important: The holes in the oor must t within a 1 1/2”
diameter circle at the center of the oor.
• Use an electric drill with the correct size bit. Drill slowly, keeping
the drill straight. Precision and care are important to avoid drilling
an oversize hole or chipping of the oor underside.
StEp 4 - drilling holES in thE kiln lid
• Measure the thickness of the kiln sidewall re brick and add 1” to
this measurement. This will be the distance from the outside edge
of the kiln that your holes will be drilled.
• Space the holes evenly around the kiln lid but no closer to the edge
than the distance above. Because the holes introduce room temperature air into your kiln, they must not be clustered together or
directly above the thermocouple. Refer to diagram #2 for proper
hole location and spacing.
• Drill the holes in the lid using the same method as used for the
oor.
6
Placement of holes in kiln floor
Diagram #1
"
1.5
2 Holes
Placement of holes in kiln lid
Diagram #2
2 Holes
1.5
3 Holes
3 Holes
"
4"4"
• Vacuum out any brick dust from inside your kiln caused during the drilling.
StEp 5 - inStalling thE plEnum cup and Spring Stand
• Using gloves to protect your hands, stretch the ex tubing to the proper length for
your installation. Stretch out the last 3” of tubing on each end of the duct to ensure
they are wide enought to t over their connections. Be careful not to collapse the
open end of the ex tubing. You should be able to stretch the ex tubing 6 ft. to 8 ft.
• Attach the length of 3” diameter aluminum ex tubing to the 3” sleeve on the plenum cup and secure with the hose clamp.
• Place the spring over the plenum cup stand post and insert the 7/16” stand post
into the small hole in the bottom of the aluminum plenum cup. Refer to the installation drawing if necessary. When properly assembled the plenum stand should be
spring loaded into the bottom of the plenum cup.
• Place the plenum cup and stand under the holes drilled in the kiln oor by rotating the cup horizontally, compressing the spring to permit cup rotation to vertical
and releasing the spring tension. Ensure that the plenum cup is centered under the
holes in the kiln’s oor.
StEp 6 - inStalling thE blowEr and motor aSSEmbly
seTup
7
• Locate a spot on the wall to mount the blower assembly and discharge tube. Important: Choose a spot that is close enough for the aluminum ex tubing to reach.
Remember that most kilns must be a minimum of 18” from the wall. If possible,
locate a spot that allows you to mount the vertical edge of the mounting plate into
a wall stud or ceiling joist. If you need to go further then the ducting will allow
consult the Custom Installation section of this manual.
• Drill a 3 1/8” clearance hole in the wall or ceiling to accept the 3” diameter discharge pipe. Be sure to check for wires and pipes in the wall prior to drilling.
• Insert the discharge pipe through the 3 1/8” hole and fasten the mounting plate in
place using the supplied sheet metal screws or toggle bolts. Choose the proper fastener for your wall type of material. If you are using the toggle bolts you will need
to position the mounting plate and mark where the holes will be. Predrill the holes
for the toggle bolts using a 3/8” drill bit . The 3” metal discharge tube is supplied
at 8” in length. This tube may be trimmed shorter or added to in order to allow for
any installation.
• Attach the open end of the aluminum ex tube to the blower inlet ange using the
hose clamp provided. Check the plenum cup assembly to make sure it has not
shifted out of place.
• We recommend attaching a hood with a screen over the end of the discharge tube.
This will help prevent snow, rain or debris from entering into the discharge tube
or blocking the air ow. The screen is also important to prevent small animals and
insects from entering the tube. This item is not included with the kit but can usually
be found at local hardware stores.
floor mountEd vEntS
A bolt-on plate comes with your kit and allows you to place the vent motor on the oor when wall-mounting
is not possible. To install, just bolt the oor plate onto the bottom lip of the mounting plate using the hardware
included in the kit. This allows the motor to sit upright on the oor. Install ducting to the discharge tube and
vent it as you would a dryer making sure all joints are airtight. When the vent is oor mounted it is no longer a
negative pressure system.
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StEp 7 - tESting thE EnvirovEnt2 for propEr
opEration
• Check to make sure the plenum cup has not shifted
during installation. It should be perpendicular to
the oor and have a good seal to the bottom of the
kiln.
• Plug the EnviroVent2 power cord into a 110 - 120
volt outlet.
• Turn on the blower by activating the switch in the
power cord. Ensure that the blower motor starts
and operates normally. If the blower doesn’t start
or the sound of air passage is not evident, immediately unplug the blower and check for the cause of the malfunction.
• Close the lid of the kiln.
• Install all peep plugs.
• Ensure that no other kiln openings are left open except the drilled holes in the kiln lid.
• Test your new vent system by placing a lighted match directly over and level with one of the lid holes. The
ame from the match should be pulled into the kiln as a result of the draft. If you are unsure of the eect of
the draft, observe the action of the ame away from the hole and then move it over the hole. If the ame is
not pulled into the kiln, the kiln is not venting properly. See page 13 on Troubleshooting. Repeat this test
regularly to ensure continuing accurate operation.
tESting prEviouSly drillEd lidS
As mentioned earlier it may not be necessary to patch existing holes. If there are more holes, or holes with a
larger diameter than this manual recommends in your kiln lid, you may not be able to ame test it as previously
recommended. If a ame is not drawn through the lid try covering up some of the holes in the lid. If after covering all the holes in the lid you still cannot get a ame to draw down into the chamber, contact your distributor for
further instruction.
chEcking thE plEnum cup
The oor of a 12 sided kiln will ex up to 1/4” due to the uneven heating of the oor. The spring loaded action
of the EnviroVent2 will allow the plenum cup to rise and fall with the exing of the kiln oor. If the 3” aluminum
ex is kicked, bumped or otherwise dislodged, the position of the plenum cup may change. If this occurs, simply
look at the plenum cup to ensure it is positioned properly. To reposition the plenum cup simply push down on
the cup to release the spring pressure, reposition the cup and let go.
8
CusTom InsTallaTIons
dual intakE kit
A Dual Intake Kit is required when you are venting 2 kilns with one Envirovent 2 or a single kiln that
is greater than 12 cubic feet in volume.
Dual Intake Kit Contents
A Dual Intake Kit contains : an additional Spring Loaded Plenum Cup Assembly, 4 - Hose Clamps, 1- 3” Y Duct
Connector and 2 - 8’ x 3” Flexible Aluminum Duct Sections.
vEnting 2 kilnS
Envirovent 2
2-Kiln Installation
9
Aluminum
Cup
3" Dia
Flex
3" Dia
Flex
Tube
Tube
Y-Duct
Connector
Radiator
Clamps
Radiator
Clamp
Radiator
Clamp
Cup Stand
With Spring
Aluminum
Cup
Cup Stand
With Spring
Installation for Two Kilns
Follow the instructions for installing the EnviroVent 2. The only dierence will be that the 3” ducting from the
Plenum Cup Assemblies of the two units will attach to a Y-Duct connector and then up to the motor. Try and
keep the duct length between the plenum cup and the y-duct connector the same length for each kiln to ensure
equal air draw. See above diagram.
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10
Placement of holes in kiln floor
14 Sided Kiln
10
CusTom InsTallaTIons
vEnting oval kilnS & kilnS ovEr 12 cubic fEEt
On kilns over 12 cubic feet, and up to 24 cubic feet, you will need a Dual Intake Kit to vent the chamber using two
plenum cups. This is to ensure the proper amount of air is vented without overheating the ducting. For oval
kilns use the charts and diagrams below to drill the proper holes in the lid and slab. If the kiln is over 12 Cu. Ft,
follow the instructions for installing an Envirovent 2 with a Dual Intake Kit.
For other kilns between 12 and 24 cubic feet contact the manufacturer before installing the Envirovent 2.
Kiln Chamber
Depth
Drill This Many
Holes In Slab
Drill This Many
Holes In Lid
Drill Size Kiln Cubic Feet
Fourteen Sided
14” 3 4 3/16” 6.7
Sixteen Sided
27” 2 + 2 4 1/4” 18.5
Placement of holes in kiln floor
1.5"
10.5"
16 Sided Kiln
1.5"
10.5"
Placement of holes in kiln lid
11" 11"
4"
Placement of holes in kiln lid
11" 11"
additional ducting rEquirEmEntS
4"
An 8 ft. length of exible 3” diameter, aluminum ducting is supplied with your kit for installation. If the distance
from your kiln to the vent hole in the wall is greater than 2 ft. you may need additional ducting. This depends on
how high up the wall you are ducting and how much stretch you can get from your 3” exible ducting.
When additional ducting is required you have several options.
Option 1
You may purchase one or more 8 ft. extension kits from Skutt or a Skutt Distributor. The kit comes with one 8 ft.
length of 3” exible ducting, one 3” coupler, and two hose clamps. If you are going to vent the kiln further than
60 ft. or have 4 or more 90 degree bends, you will need to transition to 4” ducting no further than 8 ft. from the
plenum cup.
If it is necessary to step up to 4” ducting, we recommend you use PVC since it will not corrode and is relatively
inexpensive. A transition piece from 3” to 4” may be dicult to locate but is available through Skutt along with
the transition piece needed to go from the 4” PVC back down to the 3” motor mount. See the Accessories Section
for more details.
Option 2
If you prefer, you can transition directly from the 3” ducting to 4” PVC. Remember that you will need to purchase the transition pieces from Skutt.
10
CusTom InsTallaTIons
uSing cEntral ducting
If you have more than one EnviroVent 2, you may connect them to a central duct. If a central duct is
used, hook the individual vent ducts to that central line. It is recommended that the central duct be located outside the kiln room if possible to maintain a vacuum system inside the room.
To determine what size of central ducting to install, use the chart below.
Number of Vents 1 2 3 4 5 6
Central Ducting Size 4” 6” 8” 8” 10” 10”
The duct discharge may be horizontal or vertical with the exit located a minimum of four feet from any
opening (window or door) into the building. Provide a cover on the end of the discharge to prevent rain or snow
or small animals from entering the duct. For horizontal discharge, a apper or hood type dryer exhaust vent may
be used. For vertical discharge, a cap type shield that does not reduce the discharge may be used.
Additional Considerations
• The EnviroVent 2 should not be directly hooked-up to another vent system that is a powered system - that
would create additional draw on the EnviroVent 2 system.
• If using a central duct system with multiple EnviroVent 2 blowers and all EnviroVent 2 blowers are not going
to be on at the same time (Due to one or more kilns not being used), then it is recommended to install air-tight
dampers on the output side of each of the EnviroVent 2 blowers. They should be closed when that blower/s
is not in use, in order to prevent fumes from re-entering the room via the kiln blower/s that are not turned
on.
11
• In order to maintain a vacuum system inside the room, it is recommended to locate the blower as close as
practical to the exterior of the room or the exterior discharge point.
• If mounting a blower up high, you may want to have the receptacle that the blower plugs into hooked-up to a
conveniently located wall switch for turning the blower on and o.
cEiling mounting
Ceiling mounting should be treated the same as wall mounting. It may be necessary to mount a receptacle high
on the wall to plug in the EnviroVent 2. Since the in-line switch on the cord will not be accessible in some installations, it may be necessary to also install a switch to control that outlet. Remember to turn the toggle switch on.
The EnviroLink may also be used to turn the fan on/o. See the Accessories section for more information.
SidE mounting
On certain model kilns it is not possible to mount the vent cup under the kiln and it will be necessary to mount
the cup on the side of the kiln. In order to get the positive eects of Downdraft Ventilation, you will want to
mount it as low on the side of the kiln as possible. You will not need the plenum stand or plenum spring since
the plenum cup will be screwed into the side of the kiln. Don’t worry about the exposed hole at the bottom of the
cup.
To mount the cup you will need to drill 3 holes around the ange of the cup sized for the mounting screws you
are using. To nd the size and number of holes to drill on the side and top of the kiln, nd the closest chamber
size in the Vent Hole Chart and use those values. Once the cup is mounted the rest of the installation instructions
will be the same. Remember that it is always a good idea to consult with the Manufacturer of the kiln if it is a
brand other than Skutt.
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12
12
operaTIon
opEration
Loading the Kiln
The bottom kiln shelf needs to be supported at least one inch off the kiln oor to allow sufcient
air circulation. If the holes are blocked, venting cannot take place. If you are using half shelves, a slight
gap left between them will allow better air circulation in the kiln chamber. If you are loading ware near
the lid be sure not to place it directly under a vent hole. This may cause discoloration in glazes or thermal shocking.
Be sure to close the lid and plug all of the peep holes. You can open any peephole during the ring to
check the bending of witness cones and the progress of your ring. Do not prop the lid or leave any
peepholes open during a normal ring. To do so can cause fumes to enter the room and additional room
temperature air drawn into the kiln may affect the ring.
Important:KeepthekilnoorcleanandtheholesunobstructedfortheEnviroVent2to
continuedoingitsjobproperly.
Motor Operation
The EnviroVent 2 motor is equipped with an in-line toggle switch in the power cord. This switch
must be turned ON in order to ventilate your kiln and collect the fumes.
Leaving the motor in the on position during cooling will reduce the amount of time it takes to cool the
kiln to a temperature where you can safely handle your ware. Turning the motor off will not signicant-
ly affect the kilns ability to maintain temperature or perform a slow cooling therefore it is not necessary.
If you would like to be able to automatically control when the Envirovent 2 turns on and off, you can install an EnviroLink on KilnMaster and GlassMaster Kilns. See the Accessories section for more details.
Fresh Make-up Air
It is essential to have a source of fresh air to replace the air vented outdoors. The EnviroVent 2
fan moves 140 cubic feet per minute. Unless you know that the room ventilation can handle the total
volume of loss, leave a window or door slightly ajar for make-up air. Remember: do not exhaust fumes
near a fresh air intake.
Firing times
When the correct holes are drilled in your kiln, ring times should not be much longer than normal. If ring times are signicantly longer, see the Troubleshooting section for help.
12
TroubleshooTIng
troublEShooting
problem: VenT noT operaTIng
PossibleCause: No Power to the vent.
Solutions:
Check to see the vent is plugged in.
Check to make sure the in-line switch is on.
Check the power to the outlet. If there is no power to the outlet, check the circuit breaker.
problem: smell or odor ComIng from kIln area
PossibleCause: Air is not being pulled through the kiln slab.
Solutions:
Check to see that the holes are correctly drilled in the kiln slab.
Check to see that the holes are not blocked by debris in the chamber or a shelf placed on the slab.
Check to see that the plenum cup is aligned with the holes.
Check to see if there are holes or poor connections in the ducting.
Check to see if the exit duct is free of debris and has a clear passage to the outside.
13
problem: kIln slow To reaCh TemperaTure
PossibleCause: Too much air is being pulled into the kiln chamber.
Solutions:
Check to see the holes in the lid and slab are drilled to specication.
Check to see if the lid is closed during ring.
Check to see the all the peep plugs are in place.
problem: duCTIng Is geTTIng Too hoT
PossibleCause: Holes in slab are too large.
Solutions:
Check to see the holes in the slab are drilled to specication.
problem: moTor Is VIbraTIng
PossibleCause:Squirrel cage in motor is imbalanced by debris sucked into the motor.
Solutions:
Blow out motor with compressed air. Be sure to clean area around motor intake.
Check all mounting screws to see if they are secure.
For all other problems contact your Skutt Distributor.
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14
14
aCCessorIes
accESSory itEmS
Dual Intake Kit
The Dual Intake Kit is used when you are venting 2 kilns that are each at or under 12 Cubic Feet or when you are
venting a single kiln between 12 and 24 Cubic Feet. The kit contains the following items:
• Two 8 ft. x 3” Flexible Aluminum Duct
• One Spring Loaded Plenum Cup Assembly
Cast Plenum Cup
Fiber Gasket
Plenum Stand w/Base
Plenum Spring
• Four Hose Clamps
• One Y Duct Connector
Extension Kit
The Extension Kit is used when you need additional ducting than what is provided with a standard Envirovent 2.
The kit contains the following items:
• One 8 ft. x 3” Flexible Aluminum Duct
• Two Hose Clamps
• One 3“ Connector
Individual Fittings
3” Connector 3” to 4” Connector 3” Y Duct Connector
EnviroLink
The EnviroLink is an accessory item that can be ordered for the EnviroVent
and Envirovent 2 that works in conjunction with the Skutt KilnMaster or
GlassMaster controller. It allows you to program the controller to automatically
turn the vent on and off throughout a ring program. You simply enter an on/off
setting for each segment of a Ramp and Hold program while you are programming
the kiln. There are preset “vent programs” that can be run in conjunction with a
ConeFire Mode program as well. If ordering for a kiln that is equipped with a Link
Board, be sure to order the EnviroLink for Link Board version.
14
speCIfICaTIons
Service
If your EnviroVent 2 requires service, contact your dealer, distributor or Skutt Ceramic Products, Inc. Warranty
information can be found on the warranty card included with your Envirovent 2.
Reference
The EnviroVent 2 is a UL listed accessory when used with the following Skutt UL listed kilns.
15
Models Voltage Phase
1227-3 240 or 208 volt
1227-3 240 or 208 volt 3 phase
1027-3 240 or 208 volt
1027-3 240 or 208 volt 3 phase
1027 240 or 208 volt
1027 240 or 208 volt 3 phase
1018-3 240 or 208 volt
1018 240 or 208 volt
818-3 240 or 208 volt
818 240 or 208 volt
714 240/208 volt
NOTE: All of the above kilns may have a prex of KM or KS.
KM1222-3 240 or 208 volt
KM1222-3 240 or 208 volt 3 phase
KM1022-3 240 or 208 volt
KM1022-3 240 or 208 volt 3 phase
KM1022 240 or 208 volt
KM1022 240 or 208 volt 3 phase
KM822-3 240 or 208 volt
KM822 240 or 208 volt
Models Voltage Phase
KS818P-3 240 or 208 volt
KS818P 240 or 208 volt
KM818-30A-3 240 or 208 volt
KM1218-3 240 or 208 volt
KM1218-3 240 or 208 volt 3 phase
KM1627-3-PK 240 or 208 volt 3 phase
KM1627-3-PK-LF 240 or 208 volt
KM1627-3-PK-LF 240 or 208 volt 3 phase
KM1231-3-PK 240 or 208 volt
KM1231-3-PK 240 or 208 volt 3 phase
KM1227-3-PK 240 or 208 volt
KM1227-3-PK 240 or 208 volt 3 phase
GM1227-3 240 or 208 volt
GM1227-3 240 or 208 volt 3 phase
GM1018 240 or 208 volt
GM818 240 or 208 volt
GM1414 240 or 208 volt
GM1414 240 or 208 volt 3 phase
GM1014 240 or 208 volt
GM814 240 or 208 volt
GM22CS 240 or 208 volt
GM22CS 240 or 208 volt 3 phase
Specications
Motor: 115 volt
1.4 amps
50/60 Hz
Heat exiting blower: 160 °F maximum
Blower: 140 cfm
Maximum kiln capacity for use with EnviroVent 2: 12 cubic feet (24 cubic feet with dual intake kit)
15
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