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CONVERSION GGT
Instructions are for conversion from Natural Gas to Propane (L.P.) on all GGT models .
The conversion should be done before connecting the unit to the gas supply.
1. Remove the knobs and front panel.
2. Remove the supply tubes that go between the thermostats and the orifice bracket.
3. Change the orifices to the size recommended for propane (L.P.). For units with a pilot safety valve
you must also change the pilot orifice to the other pilot orifice supplied.
4. Replace the supply tubes between the thermostat and the orifice bracket.
5. Replace the front panel and knobs.
6. Before installing the regulator, remove the cap. With the brass portion of the cap up, you can read
(NAT) on the plastic insert. Snap the insert out of the cap, flip it over and snap back in place. You can
now read (L.P.).
7. Continue with the installation.
CONVERSION GGM
Instructions are for conversion from Natural Gas to Propane (L.P.) on all GGM models .
The conversion should be done before connecting the unit to the gas supply.
1. Remove the knobs and front panel.
2. Remove the orifice fittings from the valve. Change the orifices to the size recommended for propane
(L.P.). For units with a pilot safety valve you must also change the pilot orifice to the other pilot orifice
supplied.
3. Replace the orifice fittings into the valve.
4. Remove cap, invert the insert and replace cap. NOTE: Markings on insert
5. Continue with the installation.
GGT CALIBRATION PROBE LOCATION
6.422
10.645
GGT-18
GGT-24
10.645
6.925
10.000
GGT-36
10.645
7.925
10.000
10.000
GGT-48
10.645
7.844
10.000
12.000
10.000