– 10 –
CONNECTION OF OTHER STEAM COOKING EQUIPMENT TO AN ELECTRIC OR GAS BOILER
Steam can be supplied to additional steam equipment from
the auxiliary steam port on the boiler, or Steam Line Connection
(Fig. 1). When additional equipment is added, appliance
efficiency will be affected. To be certain that you will be
operating at optimum efficiency, contact the Vulcan-Hart
sales representative in your area for steam boiler horsepower
calculations.
The connection point for the steam line to other equipment is
a
3
/
4" NPT tee (female) fitting (1.9 cm) on the left side of the boiler
near the top and towards the rear. Remove the
3
/4" NPT pipe
plug (Fig. 1) (
1.9 cm) and use the piping kit available from
Vulcan-Hart.
SEQUENTIAL STARTUP OF OTHER STEAM COOKING EQUIPMENT CONNECTED TO A BOILER
After the boiler is operating and producing steam, start the equipment that is farthest away until it is
preheated and up to temperature before starting the next piece of equipment. It is recommended that
all kettles be started before any compartment steamers. This will allow the larger equipment or the
equipment with greater steam requirements to be properly warmed up before smaller, nearer units
which require less steam. This will prevent the system from being overwhelmed by initial demand. For
configurations or recommendations, contact your Vulcan-Hart representative.
LOCATION — DIRECT CONNECTED STEAMERS
Position the steamer in its final location.
The recommended clearance for proper operation is 36" (
91.4 cm) at the front. The required clearance
from combustible or non-combustible construction is 0" at the sides and back. The recommended
clearance for service access is 18" (
45.7 cm) at the sides and back. Clearances less than 18" may
require removal of adjacent equipment during servicing at customer's expense.
An exhaust system should be located directly above the steamer to exhaust steam and heat generated
by the steamer.
IMPORTANT: Do not locate the steamer directly over a drain.
DIRECT STEAM CONNECTIONS
Provide dry steam to the inlets. If the steam is heavy with condensate, install a ball float trap before
the pressure regulator valve. To ensure rapid heatup of heavy, cold loads, the steam supply line must
be sized to provide the following:
1. To maintain steam at a pressure of 10 to 12 psi (
68.9 to 82.7 kPa).
2. A minimum flow rate of 40 pounds (
18.2 kg) of steam per hour per compartment for model VHX24D.
3. A minimum flow rate of 67 pounds (
30.4 kg) of steam per hour per compartment for model
VHX24D5.
4. A minimum flow rate of 34 pounds (
15.4 kg) of steam per hour per compartment for VHL series
steamers.
A pressure-reducing valve is furnished and set at 10 psi (
68.9 kPa). Additional steam kettles and kettle
modules can be interconnected to the steamer. Consult Vulcan-Hart for recommendations.
STEAM LINE CONNECTION
PL-41764-1
WATER
LEVEL
PROBE
HOUSING
Fig. 1
(28 pages)
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