Dover Unified Brands Groen HyperSteam HY-6G, Operator'S Manual

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8 OM-HY/6G(CE)
Installation
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.
3. 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.
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. Injector Diameters
GAS INPUT RATE BTU/HR & 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 40,905
BTU/hr
12 KW
40,905
BTU/hr
12 KW
Total:
Both
Cavities 81,900
BTU/hr
24 KW
81,900
BTU/hr
24 KW
G20 NATURAL GAS G31 PROPANE GAS
mBar Inch W.C. mBar Inch W.C.
9.25 3.7 26.25 10.5
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