Vanguard Heating GVB50P User Manual
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INSTALLING
HEATER
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CONNECTING TO GAS SUPPLY
The installer must supply an external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming gas pressure to between 11 and
14 inches of water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent pointing down as
shown in Figure 6. Pointing the vent down protects it from freezing rain or sleet.
incoming gas pressure. You must reduce incoming gas pressure to between 11 and
14 inches of water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent pointing down as
shown in Figure 6. Pointing the vent down protects it from freezing rain or sleet.
WARNING
A qualified service person must connect heater to gas
supply. Follow all local codes.
supply. Follow all local codes.
CAUTION
Never connect heater directly to the propane supply.
This heater requires an external regulator (not sup-
plied). Install the external regulator between the heater
and propane supply.
This heater requires an external regulator (not sup-
plied). Install the external regulator between the heater
and propane supply.
BULK PROPANE
TANK
VENT
External Regulator
Vent Pointing Down
Figure 6 - External Regulator with Vent Pointing Down
CAUTION
Use only new, black iron or steel pipe. Copper tubing
may be used in certain areas. Check your local codes.
Use pipe that is 1/2" in diameter or greater to allow
proper gas volume to heater. If pipe is too small, undue
loss of pressure will occur.
may be used in certain areas. Check your local codes.
Use pipe that is 1/2" in diameter or greater to allow
proper gas volume to heater. If pipe is too small, undue
loss of pressure will occur.
The gas supply line to your heater must be 1/2 inch in diameter or larger. If the
supply line branches to serve two or more heaters, the line from the branch back to
the external regulator must be doubled or tripled, etc., in size (depending upon the
number of heaters).
supply line branches to serve two or more heaters, the line from the branch back to
the external regulator must be doubled or tripled, etc., in size (depending upon the
number of heaters).
Example for 1/2 inch diameter supply line:
If the supply line
branches to serve two heaters, the line diameter from the branch back to the
external regulator must be at least 1 inch. If three heaters are served, the line
diameter from the branch back to the external regulator must be at least 1 1/2
inches.
external regulator must be at least 1 inch. If three heaters are served, the line
diameter from the branch back to the external regulator must be at least 1 1/2
inches.
Note:
If gas supply line total length exceeds forty feet, use a larger diameter pipe.
Use pipe that is the next size larger than the heater control valve fitting.
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