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L&L VENT-SURE DOWNDRAFT KILN VENT INSTRUCTIONS

ventsure-instruct.pdf 

REV: 8/1/2017 

Page 10

©

 

2017  

 

L&L Kiln Mfg, Inc.  505 Sharptown Rd, Swedesboro NJ 08085  856.294.0077   F:856.294.0070   [email protected]   hotkilns.com   

MOTOR SPECIFICATIONS

120 VOLT MOTOR

PSC Blower, Type:Forward Curve, Direct Drive
Wheel Dia. (In.):3-15/16,Wheel Width (In.):2-1/2
CFM @ 0.000-In. SP:146, CFM @ 0.100-In. SP:140, CFM 

@ 0.200-In. SP:126, CFM @ 0.300-In. SP:124. CFM @ 

0.400-In. SP:120, CFM @ 0.500-In. SP:110,
Voltage:115, Hz:50/60, Phase:1, Full Load Amps:0.75, 

RPM:3100
Bearing Type:Ball, Motor Type:Permanent Split Capacitor, 

Motor Enclosure:Open, Motor Insulation:Class B, Thermal 

Protection:Auto
Lead Length (In.):13, Conduit Box:Yes,
Ambient Temp. (Deg. F):104, Max. Inlet Temp. (Deg. F):104
Inlet Dia. (In.):3-1/8, Outlet Height (In.):2-3/16, Outlet 

Width (In.):3-1/4, Overall Height (In.):5-3/4, Overall Width 

(In.):6-5/16, Overall Depth (In.):5-3/8, Mounting:All Position, 

Housing Finish:Gray Enamel, Housing Material:Rolled Steel
Agency Compliance:UL Recognized US and Canada 

(E47479)

220-240 VOLT MOTOR

Item-PSC Blower,Type-Forward Curve, Direct Drive
Wheel Dia. (In.):3-3/4, Wheel Width (In.):1-7/8
CFM @ 0.000-In. SP:133,CFM @ 0.100-In. SP:128, CFM 

@ 0.200-In. SP:126, CFM @ 0.300-In. SP:119, CFM @ 

0.400-In. SP:112, CFM @ 0.500-In. SP:105, 
Voltage:230, Hz:50/60, Phase:1
Full Load Amps:0.33, RPM:2880
Bearing Type:Ball, Motor Type:Permanent Split Capacitor, 

Motor Enclosure:Open, Motor Insulation:Class B, Thermal 

Protection:Auto, Lead Length (In.):13, Conduit Box:Yes, 

Ambient Temp. (Deg. F):104, Max. Inlet Temp. (Deg. F):104
Inlet Dia. (In.):3-1/4, Outlet Height (In.):2-1/2, Outlet Width 

(In.)2-9/16, Overall Height (In.)6-9/16, Overall Width (In.):5-

5/8, Overall Depth (In.):6-9/16
Mounting:All Position, Housing Finish:Gray Enamel, 

Housing Material:Rolled Steel
The Vent-Sure vent is c-MET-us listed in both the US and 

Canada for use with L&L listed kilns. UL 499, CSA C22.2, 

No. 122, CSA C22. Listing No E112742.

PARTS

Prices of all parts are listed at: 

hotkilns.com/parts
Complete Vent-Sure Kiln Vent System

M-V-VENT/00 ................................................................. (see web)
VENT-SURE Vent. 120 Volt. Complete System as described 

above and on our separate Vent-Sure brochure. This includes the 

motor, an 8 foot cord with a rocker type On/Off switch mounted 

in line in the cord, the inlet duct attached to the motor,  the wall 

mounting bracket, a 90 deg elbow for mounting on the end of the 

outlet pipe (to keep rain water out), the Bypass Collection Box 

for attaching to the kiln stand or kiln side along with mounting 

hardware for mounting to an L&L kiln stand and one section of 15 

foot flexible aluminum duct with hose clamps. 
M-V-VENT/41 ................................................................. (see web)
VENT-SURE Vent. 220-240 Volt. Typically used in non-US instal-

lations.

You can also purchase individual parts to suit your 

own configuration or as replacements:

Below shows the vent system blower assembly with the motor, 

cord and switch set, 3” inlet duct to hold the flexible duct, 12” 

duct to go through a wall and 90 Degree elbow. 

M-V-FANK/00..................................................................(see web)
Complete blower assembly. Pictured above ^
M-V-FAN0/00 ................................................................. (see web) 

Fan/Blower Motor for Vent-Sure. 120 Volts. This is just the motor 

with no attached brackets or inlets. Cord is not included.
M-V-FAN0/41 ................................................................. (see web) 

Fan/Blower Motor for Vent-Sure. 220-240 Volts. This is just the 

motor with no attached brackets or inlets. Cord is not included.
M-V-BRKT/00 ................................................................. (see web) 

Steel plate onto which the motor mounts. Includes 4” x 12” outlet 

pipe and output mounting plate.
M-V-INLT/00 ....................................................................(see web) 

Motor Inlet Duct. This is the piece of duct that attaches to the inlet 

of the motor. The expandable aluminum duct fits onto this. 

Summary of Contents for M-V-VENT/00

Page 1: ...to understand in order to operate your L L kiln ventilation system safely and effectively USEFUL WEB LINKS See this video on how to install a vent hotkilns com install vent sure See this video on how to drill holes for a vent hotkilns com drilling holes vent sure vent system TABLE OF CONTENTS 1 READ THE INSTRUCTIONS 1 USEFUL WEB LINKS 1 CHECKING SHIPMENT 2 WHAT IS INCLUDED WITH VENT 2 IMPORTANT CA...

Page 2: ...h built into the motor DO NOT place anything in the blower motor while powered Serious injury and or damage to the motor could result INSTALLATION TIP BEFORE STARTING NOTE Attach the Bypass Box to the stand and the aluminum duct to the Bypass Box before installing the kiln on the stand because it can be hard to do this when the kiln is on top of the stand CHECKING SHIPMENT Your ventilation system ...

Page 3: ...KE CERTAIN KILN POWER IS OFF BEFORE PROCEEDING WITH INSTALLATION Step 1 Turn Off Kiln Power This is critical for safety reasons Step 2 Drill Holes if needed Before mounting the Bypass Box you should drill the vent holes Note if you bought the vent system with a new kiln it should be pre drilled The easiest way to drill the vent holes is to place the stand upside down on the kiln bottom center it a...

Page 4: ... or wall with the outlet of the vent pointing up This is useful when you want to use an existing penetration in a wall that won t support the vent like a window or when you want to have the vent go out of a roof or into a central vent system Step 6 Connect Flexible Duct Attach blower system to bypass collection box by stretching the flexible aluminum duct carefully it can extend up to 15 feet and ...

Page 5: ...ow of exhaust a larger flow control opening reduces the flow of exhaust fumes from the kiln and a smaller flow control opening increases the exhaust ADJUSTING THE BYPASS SYSTEM The sliding adjuster allows you to fine adjust the amount of venting that is done to your kiln It is easy to adjust but hard to know just how to adjust it The problem is that there are many factors that contribute to the am...

Page 6: ...duct Replace if necessary Check for corrosion especially if you are using clay with a high content of sulfur phosphorus or fluorine Check for wax or carbon build up if you are using a wax resist process or a high carbon content clay We recommend unmounting the fan and blowing out the squirrel cage with compressed air every two years or so especially if you are in a very dusty or if you have it mou...

Page 7: ...ol a vent an alarm or other atmospheric control Output 4 can be programmed to be on or off during each segment of a Vary Fire program Output 4 is off during Easy Fire programs FREQUENTLY ASKED QUESTIONS How do I know if the system is working See our comments under Adjusting the Bypass Valve How hot does the duct get during the firing Not very for two reasons One is that the Vent Sure does not draw...

Page 8: ...cubic foot kiln firing an 85 pound load on Fast Glaze program to cone 8 took 70 KW hours with a vent on and 62 KW hours without a vent At 8 cents per KW hour that would be a cost of 0 64 more for the firing The vent was on the whole time Will the cold air entering the kiln damage the product No The amount of air coming in is too small unless you drill holes in the lid which is not normally recomme...

Page 9: ...d to vent don t waste heat and energy by venting more than you need EXTERNAL VENTING External venting is safer and surer than venting to the inside of your kiln room with a filter REMOTE MOUNTING OF MOTOR The vent blower motor is mounted to a wall plate with a 12 length of exhaust pipe that mounts on the wall see photo This keeps the heat of the kiln away from the motor for longer motor life and k...

Page 10: ... All Position Housing Finish Gray Enamel Housing Material Rolled Steel The Vent Sure vent is c MET us listed in both the US and Canada for use with L L listed kilns UL 499 CSA C22 2 No 122 CSA C22 Listing No E112742 PARTS Prices of all parts are listed at hotkilns com parts Complete Vent Sure Kiln Vent System M V VENT 00 see web VENT SURE Vent 120 Volt Complete System as described above and on our...

Page 11: ...ration to be mounted to any L L kiln stand It can also be mounted to the side of other kilns typically on the bottom section Bypass Collection Box M V MULT 00 see web Mult Mounting Bracket Comes with six 6 sets of 1 4 20 bolts nuts and lock washers for mounting this to the Wall mount bracket M V VENT BK This special Multi Mounting Bracket will allow you to mount the vent on the floor or wall with ...

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