Bulletin Number: DF 110113
Topic: Soot Accumulation on Direct Fired Vaporizers
Product: Algas-SDI Direct Fired Vaporizers
Models: 40/40H & 80/40H Manufactured between August 2011 and October 2013
Purpose: Identify units affected and Corrective Action to prevent soot accumulation
In August 2011 and January 2012, Algas-SDI implemented design changes to the direct fired vaporizers which may prevent adequate airflow for proper combustion on the 40/40H and 80/40H under some operating conditions. As a result, we have received a small percentage of reports of vaporizers accumulating soot, mainly on the top cover of the vaporizer and the upper louvers of the door.
Models affected are limited to the 40/40H and 80/40H and were manufactured between August of 2011 and October of 2013. The affected serial number range for each model is:
40/40H: Serial numbers: A12A20003069 - A13J20003626
80/40H: Serial number: A12A40005939 - A13J40007351
Through rigorous testing, we have identified the corrective action necessary to prevent future soot build up requires an upgrade to the burner that includes a new burner jet orifice size (#69). Burner retrofit kit part numbers are;
40/40H Burner retrofit kit p/n: 45000
80/40H Burner retrofit kit p/n: 45008
If you experience trouble with a unit that falls within the serial number ranges listed above, please contact your local distributor or Algas-SDI with the serial number of the vaporizer. Upon submission of the serial number a burner retrofit kit and instructions for proper cleaning of the vaporizer will be provided to upgrade the vaporizer.
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Bulletin Number: DF 110213
Topic: Product Upgrade - Burner Jet Orifice Change
Product: Algas -SDI Direct Fired Vaporizers
Models: 40/40H, 80/40H and 120/60H: Beginning Serial numbers: 40/40H - A13J20003627; 80/40H - A13J40007352; 120/60H - A13J60002719
Purpose: Notice of product upgrade to improve overall performance of the direct fired vaporizer
To improve the overall performance of the direct fired vaporizers, Algas-SDI has implemented a change to the burner jet orifice on the 40/40H, 80/40H and 120/60H. The new burner jet orifice is a #69 orifice.
The new burner jet orifice is paired with an additional upgrade to the components on the main burner supply line. A tee with a pressure port has been added to the main burner supply line at the outlet of the thermostat enabling the end user to properly set the pressure required for proper operation and combustion of the new burner.
Vaporizers manufactured after November of 2013 (see beginning serial numbers above) are equipped at the factory with #69 burner jet orifices and the new pressure port.
Proper pressure settings for the units equipped with #69 jets are shown below.
|
Model
|
Regulator Gas Pressure
|
Thermostat Port Pressure
|
Burner Pressure
|
|
40/40H
|
11" w.c.
|
10" w.c.
|
9" w.c.
|
|
80/40H
|
10" w.c.
|
9" w.c.
|
7" w.c.
|
|
120/60H
|
18" w.c.
|
14" w.c.
|
12" w.c.
|
Units manufactured from October 2002 equipped with #66 burner jet orifices can be upgraded with the new burner jet orifice and pressure port by purchasing a burner retrofit kit. If you would like to upgrade your existing unit contact your distributor for price and availability, applicable burner retrofit kit part numbers are:
40/40H Burner retrofit kit p/n: 45000
80/40H & 120/60H Burner retrofit kit p/n: 45008
For additional information, contact Algas-SDI Technical Service & Global Support Center at (1.206.762.4357), email: OrderDeskLPG@algas-sdi.com
or sales@algas-sdi.com.
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