Dover GROEN AH-20, Руководство оператора и по обслуживанию

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HOT HOT
SURFACE SURFACE S
OM/SM-AH-CE
20
5.2.2 To Shut Down Kettle 1. Low-water cutoff relay that will shut off
1. Turn the thermostat dial to the Off water level is corrected.
position.
2. Switch the On/Off switch to the Off about 27 PSIG and shut down the
position. burners until jacket pressure is
3. For a prolonged shut down follow steps
1 and 2, and turn the gas and electricity
3. Pop safety valve, which will release
supplies off. steam if the jacket pressure exceeds 30
5.2.3 Filling the Kettle
Prior to operation of the unit, clean out the kettle Safety Valve installation and operation.
pan thoroughly, using hot water and detergent.
Kettle Capacities: the thermostat switch opens, stopping the signal
Model Capacity
AH-20 75.7 Liters
AH-40 151.4 Liters
AH-60 227.1 Liters
AH-80 302.8 Liters
Note that these are maximum capacities. Groen
recommends that no more than 80% of the
maximum capacity be used during operation.
5.2.4 Users Thermostat
The thermostat provides automatic control of the
Kettle Jacket temperature at selected settings to
a maximum of 134° C.
5.2.5 Sequence of Operation
The following "sequence of operation" outline is
provided to help the user understand the
functioning of the unit.
When the operator sets the desired temperature
on the thermostat dial, the thermostat switch
closes and sends a signal which (1) starts the
spark and (2) opens the automatic valve for the
burners. The spark ignites the burner on low
flow. The flame completes a circuit at the
sensing probe and sends a signal that causes
the spark to shut off and the automatic valve to
open to full flow once a flame has been
detected. If a flame is not detected within 15
seconds the gas is automatically cut off and the
appliance is locked out. The unit can only be re-
lit once the reset button has been pressed.
In addition to the lockout timer, safety features
include:
the gas supply to all burners until the
2. High pressure switch, set to open at
decreased.
PSIG.
See detailed Instructions on Page 8 pertaining to
When the kettle reaches the set temperature,
to the gas control valve and causing the valve to
shut off all gas flow. When the kettle cools below
the set temperature, the thermostat switch
closes and starts another heating cycle. On-off
cycling continues and maintains the kettle at the
desired temperature.
5.2.6 To Empty Kettle
Turn the handle on the tangent draw off valve
anti-clockwise. After approximately 3½ turns the
valve handle can be pulled forward and full flow
achieved. To close the tangent draw off valve,
push the valve handle inward until the threads
on the valve stem engage. Turn the handle
clockwise until the valve is closed. Do not over
tighten the valve since over-tightening may
damage the valve seat.
WARNING
WHEN EMPTYING THE KETTLE BE
CAREFUL TO KEEP HOT CONTENTS FROM
SPILLING. AVOID DIRECT SKIN CONTACT.
ENSURE PEOPLE ARE KEPT AWAY FROM
THE KETTLE WHEN EMPTYING IT.
5.2.7 Power Failure
If power to the unit fails, do not attempt to
operate the appliance until the electricity supply
is reestablished.
When the power comes back on, follow the
steps in Paragraph 5.2.1 (Initial Kettle Lighting
and Operational Readiness Check.)