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

Symptoms of incorrect gas pressure include:
Insufficient gas pressure:
• Small pilot flame which can result in insufficient
millivolts.
• Little variation in flame picture between HI and LO
settings.
• Insufficient gas to support more than one appliance
causing nuisance outages or gas surges.
Excessive gas pressure:
• Permanent damage to valve causing complete
appliance shut down.
• Too large a pilot flame resulting in over heating of
the power generator causing shut down.
• Sooting due to impingement and/or incorrect fuel to
air mix.

High Altitude Adjustment

When installing GI 450 Katahdin insert at high altitude
(above 2000'), 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 DERATING 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 ADHERED TO THE APPLIANCE AT
THE TIME OF THE CONVERSION. THE QUALIFIED SERVICE
AGENCY PERFORMING THIS WORK ASSUMES RESPONSI-
BILITY FOR THIS DERATING.
In Canada
This unit has been tested for installation at high
altitudes in accordance with Canadian test standard
CAN/CGA-2.17.THE DERATING SHALL BE CARRIED OUT
IN ACCORDANCE WITH THE REQUIREMENTS OF THE
PROVINCIAL AUTHORITIES HAVING JURISDICTION AND
IN ACCORDANCE WITH THE REQUIREMENTS OF THE
CAN1-B-149.1 AND .2 INSTALLATION CODE.
14
HIGH ALTITUDE INSTALLATIONS:
2000 ft. to 4500 ft. installations (or 610m - 1370m)
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 affixed to the
appliance at the time of the conversion. See fig. 14.
Derating procedure
1. To derate this unit, install the appropriate orifice per
the High Altitude Chart.
2. Remove the two ¼" hex head screws that hold the
burner tube/log support to the bottom of the insert.
3. Remove the burner tube/log support to expose the
main burner orifice.
4. Remove the orifice and replace with the appropriate
one from the high altitude kit.
5. .Be sure to attach the high altitude conversion sticker
provided with the kit to the rating plate on the
appliance. See figure 14.
6. It may be necessary to adjust the air shutter on the
burner tube. See the AIR SHUTTER/FLAME APPEAR-
ANCE section of this manual for more details.
This sticker (shown below) is included in all high
altitude kits and must be adhered to the insert
whenever it is converted for high altitude installa-
tions.
GAS ORIFICE
TYPE SIZE
NATURAL #31
GAS
#51
PROPANE
NATURAL
#32
GAS
PROPANE #52
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 14. High Altitude Conversion Notice Label
JØTUL
ELEVATION
PART NO.
0 - 2000'
045026
(0 - 619m)
0 - 2000'
045027
(0 - 619m)
2001'- 4500'
045024
(611 - 1170m)
2001'- 4500'
045025
(611 - 1170m)