Space Ray DK Series - Manual (Page 10)

Form #43219010
Sept 2012
5. This appliance is equipped with a snap-opening, combination
gas valve. The maximum supply pressure to the appliance is
14” W.C. or 1/2 P.S.I. If the line pressure is more than the
maximum supply pressure, then use a line regulator as
indicated in the following illustration, or a line regulator which
corresponds to the supply pressure.
6. If a second stage regulator is used and gas seeps through it, the
redundant combination gas valve is designed to lock out.
Pressure build-up in the supply lines prior to the heater must be
released before proper heater operation.
7. After all gas connections have been made, make sure the heater
and all gas outlets are turned off before the main gas supply is turned on. Turn the gas pressure on and check
for leaks. To check for leaks, apply a soapsuds solution to all connections and joints or check by one of the
methods listed in Appendix D of the National Fuel Gas Code, ANSI Z223.1-(latest edition).
9
Certified connections are
recommended to be installed as
shown, in one plane, and without
sharp bends, kinks or twists. The gas
take off from the supply line must be
parallel to the burner gas inlet
connection.
If the maximum supply pressure is less
than ½ psig, a second stage regulator
is not required.