Baltimore Aircoil Company
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External Access Options
(VT0 and VT1 Models Only)
VT0 and VT1 models can be furnished with ladders extending from the top of the unit to the base, as well as safety cages, safety gates and handrail packages to meet OSHA requirements.
NOTE: When these access options are employed, the tower must be equipped with steel drift eliminators.
Vibration Cutout Switch
Vibration Cutout Switch
A factory mounted vibration cutout switch is available to effectively protect against equipment failure due to excessive vibration of the mechanical equipment system. BAC can provide either a mechanical or solid-state electronic vibration cutout switch in a NEMA 4 enclosure to ensure reliable protection. Additional contacts can be provided on either switch type to activate an alarm.
Basin Heaters
Cooling towers exposed to below freezing ambient temperatures require protection to prevent freezing of the water in the cold water basin when the unit is idle. Factory installed electric immersion heaters, which maintain +40°F (4.4°C) water temperature, are a simple and inexpensive way of providing such protection.
Heater kW Data
| Model Numbers | 0°F (-17.8°C) Ambient Heaters | -20°F (-28.9°C) Ambient Heaters | ||
| Number of Heaters | kW per Heater | Number of Heaters | kW per Heater | |
| VTL-016-E to VTL-039-H | 1 | 2 | 1 | 2 |
| VTL-045-H to VTL-079-K | 1 | 3 | 1 | 4 |
| VTL-082-K to VTL-095-K | 1 | 4 | 1 | 5 |
| VTL-103-K to VTL-137-M | 1 | 5 | 1 | 7 |
| VTL-152-M to VTL-227-O | 1 | 7 | 1 | 9 |
| VTL-245-P to VTL-272-P | 1 | 9 | 1 | 12 |
| VT0-12-E to VT0-57-K | 1 | 2 | 1 | 2 |
| VT0-65-J to VT0-88-L | 1 | 2 | 1 | 3 |
| VT0-102-L to VT0-176-O | 1 | 3 | 1 | 5 |
| VT1-N209-P to VT1-N255-P | 1 | 5 | 1 | 7 |
| VT1-N301-Q to VT1-N395-R | 1 | 7 | 1 | 10 |
| VT1-N418-P to VT1-N510-P | 2 | 5 | 2 | 7 |
| VT1-275-P to VT1-415-R | 1 | 8 | 1 | 10 |
| VT1-416-O to VT1-600-P | 1 | 12 | 2 | 7 |
| VT1-550-P to VT1-830-R | 2 | 8 | 2 | 10 |
| VT1-825-P to VT1-1335-S | 3 | 8 | 3 | 10 |
Electric Water Level Control Package
Electric Water Level Control Package
The electric water level control replaces the standard mechanical makeup valve when more precise water level control is required. This package consists of a conductance-actuated level control mounted in the basin and a solenoid activated valve in the make-up water line. The valve is slow closing to minimize water hammer.
Extended Lubrication Lines
Extended lubrication lines with grease fittings located outside the fan section are available for lubrication of the fan shaft bearings.
High Temperature Fill
Optional high temperature fill materials are available to increase the maximum allowable entering water temperature to 170°F (76.7°C).
Bottom Screens (VT0 and VT1 Models Only)
Wire mesh screens are available factory-installed over the bottom openings to prevent unauthorized access.
Basin Sweeper Piping
Basin sweeper piping provides an effective method of preventing sediment from collecting in the cold water basin of the tower. A complete system, is provided in the tower basin for connection to side stream filtration equipment (by others).
Solid Bottom Panels
Factory-installed bottom panels are required when intake air is ducted to the unit.
Discharge Hoods
Discharge Hoods
Discharge hoods reduce the risk of recirculation in tight enclosures by increasing discharge air velocity, and can be used to elevate the tower discharge above adjacent walls to comply with layout guidelines.
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