High Altitude Adjustment - Jøtul Katahdin GI 450 DV II Installation And Operation Instructions Manual

139177_Rev_C July 11, 2010

High Altitude Adjustment

When installing this appliance at altitude above 2000
feet, it is necessary to compensate for the thinner air
(less volume of air per cubic foot). Higher altitudes affect
the atmospheric pressure and heat value of gaseous
fuels. The lower oxygen content in the air and the lower
gas viscosity require the use of a different orifice to
achieve efficient, clean combustion at the burner tube.
In the U.S.
THE DE-RATING KIT MUST BE INSTALLED BY AN AUTHO-
RIZED SERVICE TECHNICIAN IN ACCORDANCE WITH THE
MANUFACTURER'S INSTRUCTIONS AND ALL CODES AND
REQUIREMENTS OF THE AUTHORITY HAVING JURISDIC-
TION. THE INFORMATION STICKER MUST BE FILLED OUT
BY THE INSTALLER AND APPLIED TO THE APPLIANCE AT
THE TIME OF THE CONVERSION. THE QUALIFIED SERVICE
AGENCY PERFORMING THIS WORK ASSUMES RESPONSI-
BILITY FOR THIS DE-RATING.
In Canada
This unit has been tested for installation at high alti-
tudes in accordance with Canadian test standard CAN/
CGA-2.17. THE DE-RATING SHALL BE CARRIED OUT IN
ACCORDANCE WITH THE REQUIREMENTS OF THE PRO-
VINCIAL AUTHORITIES HAVING JURISDICTION AND IN
ACCORDANCE WITH THE REQUIREMENTS OF THE CAN1-
B-149.1 AND .2 INSTALLATION CODE.
High Altitude Installations:
2000 ft. to 4500 ft. installations (or 610 m - 1370 m)
See Table 1.
For high altitude installations consult the local gas
distributor or the authority having jurisdiction for proper
rating methods. If the installer must convert the unit to
adjust for varying altitudes, the information label must
be completed by the installer and applied to the appli-
ance at the time of the conversion. See fig. 18.
Derating procedure
1. Install the appropriate orifice per the High Altitude
Chart.
2. Remove the burner tube to expose the main burner
orifice.
3. Use a 1/2" deep well socket or open end wrench to
remove the orifice and replace with the appropriate
one from the high altitude adjustment kit.
4. Attach the high altitude conversion sticker provided
to the rating plate on the appliance. See figure 14.
5. It may be necessary to adjust the air shutter on the
burner tube. See the Flame Picture / Air Shutter Ad-
justment on the next page for more details.
18
ORIFICE
GAS TYPE
SIZE
NATURAL
#31
GAS
#52
PROPANE
NATURAL
#32
GAS
1.55 mm
PROPANE
Table 1. High Altitude Orifice Chart.
THIS APPLIANCE HAS BEEN CONVERTED FOR USE
AT AN ALTITUDE OF ______________________
Orifice Size: _______ Manifold Press: ________
Input, BTU/Hr: ________ Fuel Type: _________
Date of Conversion: ______ / _______ / ______
Figure 18. High Altitude Conversion Notice Label
JØTUL
ELEVATION
PART NO.
0 - 2000'
045026
(0 - 619m)
0 - 2000'
045025
(0 - 619m)
2001'- 4500'
045024
(611 - 1170m)
2001'- 4500'
220048
(611 - 1170m)