User`s manual

15
decrease flow rates. Contact Allegro Technical Services (800 622-3530 or email
[e-mail] for more information.
Q: Can I use two blowers, one to ventilate and another to extract air, in the same space?
A: Yes, when used with ducting this will help concentrate the exchange of fresh air in a specific area of a
given space, but will not significantly increase the overall air exchange.
Q: Will the blower output decrease if I add additional ducting?
A: Yes, the output will decrease with any addition of ducting or addition of bends in the ducting.
Q: Are the reductions in output directly related to the length in ducting?
A: No, there are several variables that will affect the total output of the blower. The biggest drop in output
will occur after the first addition of ducting, thereafter the reductions are smaller. The same holds true for
the number of bends.
Q: What is the maximum temperature the ducting can withstand?
A: The maximum working temperature for standard ducting is 180°F and Statically Conductive ducting
250° F.
Q: Can I use the 12” or 16" Blower with 8" ducting?
A: Yes, the optional Adaptor Reducer, P/N 9509-03 (12”) can be used only with the 9509-50 High Output
blower. The P/N: 9600-50 (16”), can only be used with the Standard 16" blower (P/N 9515) and the 16"
Explosion Proof blower (P/N 9516-01). It is not recommended for the High Output blower 9516.
Q: Can you draw air with all Allegro blowers?
A: Yes, you can relocate the flange on the 9515 & -01 (16") and 9525 & -01 (20”) Axial blowers. It is not
recommended for the High Output 9516 (16”) or 9525-50 (20”). You may install an optional inlet adapter
on the 8" Axial blowers. The Plastic and Metal COM-PAX-IALS have an inlet and outlet port, the canister
can attach to either side of blower for suction or ventilation. The ducting can attach to the inlet or outlet
port for extraction or ventilation on the 8” and 12” and all centrifugal blowers.
Q: Can a blower be placed vertically above a manhole?
A: Yes, if it is supported safely with proper ingress/egress, vibration, movement, and weight mitigated.
Q: Why is my blower tripping the circuit breaker?
A: Two main factors can cause this:
1) Ensure there is proper current to the blower.
a) Check circuit breaker, it must be of appropriate amperage (load).
b) Check the voltage on the panel and the blower.
c) Check for condition of electrical cord and/or extension cord, as well as extension cord
gauge and length.
2) Check for proper fan operation.
a) Ensure the fan is not rubbing against the housing.
b) Check for foreign material build-up inside housing. This might prevent fan from
turning.
c) Check for any rust on shaft or damaged fan blades.
Q: Can I convert my AC (115V) powered blower into DC (12V) powered blower?
A: No, the motors can not be used for both applications or converted. There are many AC to DC inverters
on the market that can be purchased, which will let you adapt an AC blower (115V) to your car’s battery
(12V) for power.
Q: Do you have parts listings on your website?
A: Parts are located at each product page (if applicable) or for all Parts Listing, in the tab on the lower
navigation bar.
For more information and assistance on Allegro Products, check the website @ http://www.allegrosafety.com/, contact Allegro
Technical Service Department at [phone], or email [e-mail].