24
3-90-233R24_11/13
Installation
draft Test Procedure
After the venting is completed, the firebox draft will need to
be checked and possibly adjusted. After removing the plug
bolt from the draft hole (3/16” hex key wrench) shown in Fig.
9, insert the draft meter tube. The hopper lid must be latched
during this test. (It is recommended that the draft meter have
a scale of 0 to 1” WC.)
Turn the feed adjuster to “Test”. This will start the combustion
blower and allow you to check and record the High Draft
______ - IWC date _______ The maximum draft allowed is
-.9” Water Column (-224 Pa). There is no adjustment for the
High Draft,
other than re-positioning the combustion blower
fan blade on its shaft, or a change in the venting configuration.
After the first 60 seconds the “Test” mode lowers the
combustion blower voltage to the Low Burn voltage. During
this lowered voltage cycle, the
low draft must be checked
and adjusted if necessary. The recommended low draft setting
should be between -.45 and -.55 IWC. Depending on the
amount of vertical rise, it may not be possible to get a low
draft reading in this range.
In this case, re-positioning the fan
blade further on the motor shaft may be helpful.
There is a low draft voltage adjustment screw located through
the small hole to the right of the Igniter Light. See Fig. 10
.
Adjusted Low Draft is __________ -IWC. To increase the
draft in higher altitudes, High Altitude kit # 1-00-232059 may
be needed.
don’t forget to turn the feed adjuster off of “Test”, and
reinstall the draft test plug bolt into the boiler.
Fig. 9
“Test”
low draft
Adjustment Pot
Fig. 10
draft
Testing Port
High altitude kit #1-00-232059.
Install this ring to increase draft in higher altitude
installation locations.
CAUTION
!
hot while In Operation. do Not Touch. keep Children,
Clothing And Furniture Away. Contact may Cause Skin
burns. See Nameplate And Instructions.
keep doors Closed during Operation.
WARNING
!
do Not Store Fuel or Other Combustible material
within Installation Clearance Area.
WARNING
!
risk of Fire - do Not Operate with the Flue draft
Exceeding -.9” Water Column (-224 Pa).
WARNING
!
