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to the sunlight. These minor distortions will not affect the
operation of the tank.
e. Roofs. Tanks can be installed on roofs however
they may need to be spaced apart so that maximum
structural loading is not exceeded. Follow the instructions
of a structural engineer regarding the distribution of the
tank floor loading.
f. Service Access. Refer to
overhead clearances for each model tank. No service
access is required around the sides of the tank beyond
what is needed for proper headering.
3. TANK INSTALLATION
a. Insulation. All tank models are insulated at the
factory and are shipped with integral insulated bases
installed.
b. Moving the Tanks. The tanks are heavy even
when empty and two people, with help of a forklift or
crane, are generally required to move them. All standard
rigging procedures and safety rules for lifting heavy
objects should be followed at all times even if not
detailed in this manual.
i. "A" Model Tanks. All have forklift slots
incorporated into their bases to facilitate moving the
tanks. Forklifts must have forks or extensions at least 72
inches (1830 mm) in length. Forklift operators must take
care not to ram the tanks with their forks when picking the
tanks up. This type of handling could puncture or
otherwise damage the tanks.
When using a crane to move an "A" Model tank into
position put two 30 foot (9 m) long, 3-inch (75 mm) wide
"choker" straps — each 180º apart — around the
midsection of the tanks. As the crane starts to lift, the
straps will slide up about a foot (300 mm), tighten around
the tank, grip and then hold the tank. The tank can then be
maneuvered into position.
ii. "C" Model Tanks. These tanks consist of one,
two or three individual modules which have main headers
built into the cover. Models 1320C and 1500C tanks must
be rigged into position with a crane and a special rigging
bar available from CALMAC®. (A standard spreader bar
can be used on the Model 1190C and 1220C). When moved,
they must be lifted as a single unit. Each module is
equipped with 2 hoist rings. Normally, one rigging bar is
shipped with each job. Lifting hooks are provided and
packaged separately.
Insert the provided clevis pins through the
appropriate holes in the rigging bar, capturing the hooks
between the steel channels
Table
2). Lock the clevis pins in place by inserting a cotter
pin. Lifting cables should be attached to the rigging bar as
shown in
Figure 2
and
Figure 3
The rigging bar should be placed on top of the ice
tank unit and the lifting hooks secured to the tank hoist
rings.
IB-SVX186B-EN
Table 1
for the required
(Figure
2,
Figure 3
and
in accordance with
Table
If either the Model 1320C or Model 1500C Ice Bank
units must be temporarily set down, prior to its final
placement, it should be placed on a clean, flat and
reasonably level surface.
Note: Keeping the tanks level and preventing them from
swinging will assist in maintaining the required
uniform spacing between tanks.
4. PLUMBING PROCEDURES
a. General. There is no preferred inlet or outlet
header connection to the tank.
Flange manufacturers recommend that the 4 inch
flange bolts with washers be torqued to no more than 60
ft. lbs (81.4 Nm) and standard tightening pattern be used to
prevent leaks or damage to the flanges.
i. "A" Model Tanks. The connections on Model
'A' tanks are 2" flanges.
Note: The standard polyethylene heat exchanger is
limited to 90 Psi (620 kPa) internal pressure.
(Special orders to 125 Psi/862 kPa.) If system
pressures exceed these limits, a heat exchanger
must be used to isolate the storage tanks from the
higher pressure. A pressure relief valve must also
be installed in the system to assure that pressure
does not exceed 90 Psi (620 kPa) for standard heat
exchangers and 125 Psi (862 kPa) for special order
heat exchangers.
Table 2.
Lifting pin destinations
Model
1320
1500
ii. "C" Model Tanks. External pipes must be
located in such a way that the internal header pipes are not
pulled from their normal, at rest position. Using flange
bolts to pull tank flanges to system piping may cause
internal damage.
Models 1320C and 1500C have 4 inch flange
connections. Model 1190C tanks can be bolted directly to
each other at the 4 inch flange connection. See
and
Figure
4. However, do not connect more than three
Model 1190C tanks directly to each other without an
intermediate flexible connection that will allow 3/4 inch to
1 inch (20 to 25mm) of axial motion.
b. Flushing. All field constructed piping systems
should be flushed thoroughly, before filling with the
coolant, to remove weld slag, flux, debris etc. from the
piping. It is a good practice at this time to valve off all heat
exchange devices that are not protected by a strainer so
2.
that small passages do not become plugged. The Ice
Bank® tanks should also be valved off. It is a good practice
to carefully monitor the amount of water needed to initially
fill the system for flushing. This may be useful for
determining the volume of coolant required to fill the
system. Remember to add the Ice Bank heat exchanger,
Introduction
Pin # for lifting
Pin # for Tanks
cable
1,2,3,4
1,2,3,4,5,6
8,10
7,9
Figure 3
5
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