Unified Brands HYPERSTEAM HY-6G(CE) - Manual (Page 7)

OM/SM-HY-6G(CE) 
OM/SM-HY-6G(CE)
7
Gas input is through a ½ inch B.S.P.T connection
at the left rear of the unit.
GAS INPUT RATE BTU/HR AND KW
HY-6G(CE)
Natural Gas
9.25 mBar
(3.7 in. W.C)
Propane Gas
26.25 mBar
(10.5 in. W.C.)
Individual
Steamer Cavity
40950 BTU/hr
12 KW
40950 BTU/hr
12 KW
Total
Both Cavities
81900 BTU/hr
24 KW
81900 BTU/hr
24 KW
Installation pipe work must be fitted in accordance with
IGE/UP/2.
The appliance governor is suitable for both natural and
propane gas without conversion. The governor is
incorporated in the gas control valve, which is inside the
control cabinet.
Connection to the gas supply can be completed with ½”
B.S.P.T. pipe. Although the immediate connection to the
appliance is ½” B.S.P.T., gas supply piping must be large
enough to provide 90,000 BTU/hour. Minimum supply
pressure must be 20 mBar for natural gas, or 37 mBar
for propane gas.
An isolating cock must be located close to the appliance
to allow shut down in an emergency, or for servicing.
The installation must be tested for gas soundness and
purged as specified in IGE/UP/1.
4.3.1 Gas Pressure Adjustment
Gas pressure has been set at the factory but should be
checked by connecting a manometer to the pressure tap
on the burner manifold. The adjusted gas pressures is
shown in the table below.
G20 Natural Gas G31 Propane Gas
mBar Inch W.C. mBar Inch W.C.
9.25 3.7 26.25 10.5
If necessary, the gas pressure may be readjusted as
described in the Service Manual.
NOTE: With reference to gas rate, pressure adjustments
and conversions, this appliance is CE-approved for use
with C20 natural gas and G31 propane gas in Ireland
and the United Kingdom.
Use of the appliance with non-approved gases in a listed
country, or use in other countries, will void CE
certification.
4.3.2 Injector Diameters
Natural Gas Propane Gas
Injector
Dia. (mm)
No. of
Injectors
Injector
Dia. (mm)
No. of
Injectors
Main
Burner
1.49 4 x 2 0.94 4 x 2
Standby
Burner
0.99 1 x 2 0.57 1 x 2
Pilot
Burner
0.60 1 0.25 1
4.3.3 Burner Air Adjustment
The unit is equipped with fixed aeration type burners
which have no provision for air inlet adjustment.
4.3.4 Equipotential Terminal
In accordance with national regulations, each unit is
fitted with an equipotential terminal.
4.4 Water Supply Connection
The HY-6G CE model is fitted for a 3/4 inch B.S.P.T.
cold water connection. The water supply must be
provided at a rate of not less than 2.7 liters (0.70
gallons) per minute. Pressure must be 2.0 to 4.0 Bar
(30 to 60 PSI) maximum.
Water quality minimums require totally dissolved
solids (T.D.S.) of 30 parts per million maximum, and
a water pH of 7.0 or greater. If the available water
supply fails to meet these requirements, water
treatment equipment must be provided to ensure
steamer reliability and operating life.