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)
| MIN | MAX |
NATURAL GAS | 5.0 | 7.0 |
PROPANE | 12.0 | 14.5 |
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
MANIFOLD PRESSURES (inches water column)
| MIN | MAX |
NATURAL GAS | 1.2 | 3.8 |
PROPANE | 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
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.
EA
Figure 24. Pressure test points.
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