Gas Pressure; High Altitude Adjustment - Jøtul GF 100 DV II, GF 200 DV II Installation And Operation Instructions Manual

GF 100 DV II Nordic QT
GF 200 DV II Lillehammer

Gas Pressure

Correct gas pressure is essential for efficient and safe
operation. It is important that the correct pressure is
established at the time of the installation. Proper gas
pressure provides a consistent flow of gas to the appli-
ance and is instrumental in checking for gas leaks.
Pressure Test: Attach a manometer to the appropri-
ate test point on the valve. See fig. 24. The gauge connec-
tions are located on the front of the valve under the On/
Off/Pilot- knob. Gauge connections are identified by:
E - for Inlet or Supply Pressure (the amount of gas
coming to the valve.)
A - for Manifold Pressure (the amount of gas that is
coming out of the valve to the burner.)
ALWAYS TEST PRESSURES WITH VALVE CONTROL KNOB
SET ON HIGH.
NECESSARY INLET GAS PRESSURES
(inches water column)
NATURAL GAS
PROPANE
The appliance and its appliance main gas valve must
be disconnected from the gas supply piping system
during any pressure testing on that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply
line by closing its individual manual gas shut-off valve
(gas cock) during any pressure testing of the gas supply
piping system that is equal to or less than pressures of
1/2 psig (3.5 kPa).
MANIFOLD PRESSURES
(inches water column)
NATURAL GAS
PROPANE
E
A
Figure 24. Pressure test points.
18
MIN MAX
5.0 7.0
12.0 14.5
MIN MAX
1.2 3.8
2.9 11.0

High Altitude Adjustment

The decreased atmospheric pressure of higher altitudes
affects heat value of gaseous fuels. Most gas suppliers
derate the gas intended for use at elevations above 2000
feet. Check with your gas supplier before performing
derate adjustment to the burner.
The GF 100 DV II Nordic QT does not require adjustment
for elevations up to 4500 ft. DO NOT DERATE.
The GF 200 DV II Lillehammer may be adjusted for
altitude over 2000 ft. (610 - 1371 m). Check with your
gas supplier and, if necessary, install High Altitude
Adjustment Kit 155808 for Natural Gas, or Kit 155809
for Propane.
See the chart below for appropriate orifice sizes and
part numbers.
IN THE U.S:
THE DERATING KIT MUST BE INSTALLED BY AN
AUTHORIZED SERVICE TECHNICIAN IN ACCOR-
DANCE WITH THE MANUFACTURER'S INSTRUC-
TIONS AND ALL CODES AND REQUIREMENTS
OF THE AUTHORITY HAVING JURISDICTION.
THE INFORMATION LABEL MUST BE FILLED
OUT BY THE INSTALLER AND APPLIED TO THE
APPLIANCE AT THE TIME OF THE CONVERSION.
THE QUALIFIED SERVICE AGENCY PERFORM-
ING THIS WORK ASSUMES RESPONSIBILITY
FOR THIS DERATING.
IN CANADA,
THIS UNIT HAS BEEN TESTED FOR INSTALLA-
TION 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.
For high altitude installations, consult your local gas
distributor or the authority having jurisdiction for proper
rating methods. If the appliance is converted for high
altitude, the Conversion Label, supplied with the kit,
must be filled out by the installer and applied to the
appliance at the time of the conversion. See fig. 25.