Alpha Technologies AlphaCell SMU - Manual (Page 14)

745-680-B9-001 14
8.0 Installation
About the site:
Maintain a distance of at least 20" (508mm) between the battery and electrical switches and
outlets.
Do not expose the battery to organic solvents and corrosive gasses.
Maintain a distance of at least 7.87" (200mm) between batteries and battery groups to provide
proper ventilation.
Create a pathway at least 47.24" (1200mm) wide next to each battery group for access during
routine maintenance.
Verify that the maximum weight capacity of the fl oor is not exceeded.
The ideal operating temperature is 77ºF (25ºC). If possible, install air-conditioning or forced
ventilation to keep temperatures between 59ºF (15ºC) and 95ºF (30ºC). •
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Tools needed:
• Socket and wrench sets
• Torque wrench
Procedure:
1. Check the cells and frame modules for damage. Do not install damaged cells.
2. Remove the retaining bars and the cells from the frame modules.
3. Fasten the two channel bars to one module with M8x30 bolts, nuts, fl at washers, and lock
washers. The bigger diameter holes on the channel bars should face down for anchoring to the
fl oor. The channel bars can be mounted with their open side facing either in or out depending on
installation and maintenance convenience.
4. Fasten the second frame module to the top of the fi rst with four M8x20 bolts, nuts, fl at washers,
and lock washers. Continue stacking and fastening together modules. Alpha recommends
stacking no more than four modules. However, the system can accommodate up to six. If
applicable, blot parallel stacks to each other with two bolts, one in the front and one in the back,
on each row.
5. Torque all nuts to 130 in/lb. (15N/m).
6. Fasten the two lead terminals to the top module. One terminal can be fastened to each side of the
module or both can be fastened to the same side.
7. Starting with the bottom module (to prevent tipping), slide the battery cells into the assembled
frame. Orient the positive and negative poles of the batteries as shown in Fig 8-3.
8. Fasten the retaining bars to the modules to secure the cells.
9. Connect the cells using the fl exible connectors according to color and polarity (red=positive;
blue=negative), as shown in Figures 8-2 and 8-3. Torque all connections to 130 in/lb. (15N/m).
10. Check the voltage and polarity of the battery string with a voltameter.
11. Connect the positive poles of the cell at one end of the string to the positive terminal. Connect the
negative poles of the cell on the other end of the string to the negative terminal (see Fig. 8-3).
12. Install the plastic terminal covers to the terminals and the cover plate to the top of the top module.
CAUTION!
All the cells in the system must be of the same capacity. Alpha recommends the cells be close in
age.
CAUTION!
Take care not to create a short circuit when connecting the battery string to the lead terminals.