The Fluid System - JEM Glaciator X-Stream User Manual

HEAVY FOG GLACIATOR

THE FLUID SYSTEM

The Heavy Fog Glaciator uses a 5L (1.3 US Gal.) container to give
approximately 1.5 hours of continuous operation at full output. This will vary
with power supply voltage, which will determine the maximum continuous
output level. For longer run times, the remote fluid system can be used.
The machine control system uses a 'Pump Ramping' technique to allow
continuous operation with moderate input power requirements. When the
output level is set to maximum, the machine will give maximum output until
the heat exchanger has used its energy reserves. The control system will
then override the output level setting and reduce the pump speed to match
the output to the available input power. This ensures that the output will be
continuous, although at a reduced level.
Continuous operation gives rise to the possibility of pump damage if the
machine runs out of fluid. This is overcome in the Heavy Fog Glaciator by
using an electronic fluid sensing system, ensuring that the pump is shut
down when the fluid level is too low. The Left-hand display will show a Lo Flu
message to warn the user that the machine is shut down due to lack of fluid.
Variations in pump performance due to supply frequency differences
(50/60Hz), are compensated for automatically. Supply voltage changes will
also affect the pump performance, and can be catered for by using the
Supply Voltage menu (SuP) on the right-hand display unit. Using the Menu
key, select the SuP menu and press enter. Now adjust the voltage to match
the local power supply voltage (valid range is 200 - 250V). Press the enter
key to store the new setting in non-volatile memory. The pumps will now run
at the optimum level for the conditions.
Remember that the type of fluid used will play a large part in determining the
resulting effect. The list of fluids inside the front cover of this handbook
shows the main fluids compatible with this machine. Choose a fluid suitable
for the venue and type of effect you want to create. Generally, use the
standard B2 fluid, but for longer lasting effects, contact a distributor for
advice on using another fluid grade.
When operating the machine for long periods, there will always be a build-up
of condensation in the evaporator unit. This will drain into the drip tray, which
should be emptied regularly. For installation, an optional drain hose can be
fitted.
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USER
GUIDE
LOCAL/REMOTE FLUID SYSTEM
The Local / Remote fluid system used on the Glaciator gives users the
flexibility of using either the built-in 5L container (with sensor), or a remote
supply. The remote supply can be up to 100m away from the machine if a
suitable slave pump is used at the reservoir.
An output, which is active when the machine is firing, is provided on the 9-
way D-type connector (pins 8 & 9). This signal can be combined with the
signal from a pressure switch, to control the remote pump which must have
a maximum output pressure of 3 bar.
These contacts are voltage free, and allow the remote pump to be active
only when the machine is fired. Since the contacts are voltage free, they can
be connected in parallel with the signals from other Glaciators which share
the same fluid supply. This forms a 'wired or' function, which enables the
pump when any/ all machines are operated. The output must not be used to
control mains (line/net) voltages directly.
To select between local or remote fluid, open the door of the fluid
compartment and operate the toggle switch mounted in the top of the
compartment side panel. The local fluid sensor will be disabled when in
remote mode, but the remote system can shut the machine down by using
pin 5 of the interface connector (9-way D-type). This allows a remote system
to be constructed which includes a fluid sensor, thus preventing the system
from running dry.
The input on pin 5 must be pulled low, relative to the ground on pin 6.
Ground isolation should be provided between the two systems, by using
relays or opto-isolators.
The remote fluid connection is a 6mm 'push fit' style pneumatic fitting, and
should be used with nylon or PTFE tubing having a
When using a remote slave pump, the suction line must be fitted with a
suitable filter such as Martin part number 26480020.
The most suitable type of pump, is a diaphragm unit similar to 'FloJet' style
2100, which includes a pressure switch. To prevent the liquid being forced
through the internal pumps, t
machine should be 3 bar (44psi)
For distances to the reservoir of less than 6m, a slave pump is not required.
To prime the pumping system, the 'Ice' switch should be set to OFF, to allow
the machine to run the pumps at maximum output. Alternatively, wait until
the refrigeration system cools to below -10, at which point the pump ramping
system will become inactive, and maximum output will be available.
Note: All pressures are quoted as gauge pressure.
HEAVY FOG GLACIATOR
10 bar pressure rating
he maximum pressure in the feed line to the
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USER
GUIDE
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