HALE SmartFOAM, Описание, установка и руководство по эксплуатации

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Page 40
SmartFOAM
system is ordered with the “no tank” option the
system installer must maintain NFPA compli-
ance. To be NFPA compliant, when flushing is
required, the system installer must provide
proper:
❑
Hoses
❑ Shut-off valves
❑
Check valves
❑
Reducer/regulator
❑
Connections for flushing water for the system
FOAM DISCHARGE DRAINS
Drains must be provided from foam capable discharge pip-
ing components to prevent freezing in cold weather. When
designing the drain system care must be taken to prevent
contamination of the water system with foam and the foam
concentrate with water. Some multiple drain systems that
allow individual drain lines to communicate also allow
foam to bypass the installed check valves causing contam-
ination of fire pump and the water or foam concentrate
storage tanks.
Hale offers an optional manual or air-operated 6-port drain
valve, Class1 Model MMD6 (p/n: 104961). The valve pro-
vides individual drains with a single control and is use for
applications where a single point for multiple drains is re-
quired. If a Hale MMD6 drain valve is not used, individual
drain lines and valves for foam capable discharge piping is
recommended.
APPARATUS DESIGN/BUILD FOR COLD
WEATHER (BELOW FREEZING) DUTY
If the end-user will use the fire apparatus in sub- freezing
temperatures, the onus is on the fire truck builder to build
into the apparatus design an appropriate ambient temper-
ature operating environment for the envelope where the
SmartFOAM system will be located. This routinely takes
on the form and function of mounting the SmartFOAM sys-
tem in a limited ventilation area that is served by an appro-
priate pump house auxiliary heater.
Simply, the fire truck builder must keep ambient air tem-
perature above 32°F (0°C) in the envelope around the
SmartFOAM hardware, including the base foam pump
unit, foam strainer, foam concentrate injection line, etc.
There are several best practices in the fire industry that
can be employed to meet this criteria and the fire truck
builder/designer can choose the best choice for their spe-
cific installation. Note that there must be ventilation availa-
ble to cool the area around the unit also, to prevent electric
motor overheating when the unit is operating in high tem-
perature ambient environments.
ELECTRICAL REQUIREMENTS
The system installer must provide the primary power wire
and a ground strap for the Hale SmartFOAM system.
Primary power must be supplied from the main apparatus
battery to the motor controller box on the foam pump and
motor assembly. The Hale SmartFOAM 2.1A and 1.7AHP
systems require a minimum of a 40 AMP electrical service.
The Hale SmartFOAM 3.3 and 5.0 systems require a mini-
mum of a 60 AMP electrical service. The Hale SmartFOAM
6.5 (12VDC) system requires a minimum of a 90 AMP elec-
trical service and the 6.5 (24VDC) system requires a mini-
mum of a 45 AMP electrical service.
For dual foam systems, the above minimum requirements
must be used to calculate the requirements for the units be-
ing installed. Primary electrical power must be supplied di-
rectly from the battery, the battery master disconnect switch,
or solenoids to the Hale SmartFOAM system. (Do NOT use
the chassis for the ground.)
IMPORTANT!
OTHER ELECTRICAL COMPONENTS MUST NOT BE
SUPPLIED FROM THIS WIRE. DO NOT CONNECT THE
PRIMER AND HALE SMARTFOAM USING THE SAME
POWER WIRE.
The primary power connection must be made so that power
is supplied to the Hale SmartFOAM when the main appa-
ratus electrical system is energized and the pump is in gear.
Use of a solenoid with a 150 AMP peak, 60 AMP continuous
rating (for the 6.5 12VDC system, use a solenoid with a 250
AMP peak, 90 AMP continuous rating)
is recommended.
Figure 14 shows the recommended wiring for these relays.
Notes: This ensures immediate operation when the opera-
tor places the apparatus in PUMP mode, and to prevent bat-
tery power drain when the apparatus is not running.
Make certain that the recommended wire gage is selected
for the primary power connection based on the run length
(
Table 6: Recommended Primary Power Cable Sizes ).
Use solder lugs on cable ends with a 5/16-in (8 mm) diame-
ter hole.
Table 6: Recommended Primary Power Cable Sizes
Models 1.7 and 2.1 Maximum length
8 AWG (9mm
2
) 6 ft (1.8M) or less
4 AWG (21mm
2
) 6 ft (1.8M) to 15 ft (4.6M)
0 AWG (54mm
2
) 15 ft (4.8M) to 30 ft (9.1M)
Models 3.3, 5.0, & 6.5-24V Maximum length
6 AWG (21mm
2
) 6 ft (1.8M) or less
2 AWG (34mm
2
) 6 ft (1.8M) to 15 ft (4.6M)
0 AWG (54mm
2
) 15 ft (4.8M) to 30 ft (9.1M)
Model 6.5-12V Maximum length
4 AWG (21mm
2
) 6 ft (1.8M) or less
0 AWG (54mm
2
) 6 ft (1.8M) to 15 ft (4.6M)
00 AWG (68mm
2
) 15 ft (4.8M) to 30 ft (9.1M)