AAF International PRU - Manual (Page 4)

* Substitute PRU for RU when the unit is a Pressurization and Recirculation Unit.
** In the case of the Pressurization and Recirculation Unit, the nominal delivered airflow is a combination of pressurization and recirculation airflow controlled via an in-built damper.
RU* - 500V – 2P – HD– F – HD – 2P – 6F
1.3.2 continued
12" high x 24" wide x 12" deep Type HD cassette ships in two halves.
The gas-phase chemical filter cassette typically supplied with the RU
is as follows: 1.3.3 Particulate Filters
Prefilters and After-filters - Particulate prefilters and after-filters will
typically be AAF PerfectPleat
® pleated filters. Depending on the size
of the Recirculation Unit (RU) ordered, 24" high x 24" wide x 2" deep
full size filters or 12" high x 24" wide x 2" deep half size filters may be
supplied. PerfectPleat 2" deep filters are packaged 12 to a carton.
High Efficiency Filters – High efficiency filters will typically be AAF
M-Pak pleated filters. Depending on the size of the Recirculation Unit
(RU) ordered, 24" high x 24" wide x 6" deep full size filters or 12"
high x 24" wide x 6" deep half size filters may be supplied. M-Pak
filters are packaged two to a carton.
Note that other optional or special filter arrangements may be supplied,
depending on the requirements of the project. Check the purchase
order and the AAF submittal drawing(s) for details.
1.4 Product Model Designations
The product models are designated as shown in Table 1:
Table 1: Typical Model Numbers
Recirculation Unit (RU) Pressurization and Nominal Delivered Full Product Description
Recirculation Unit (PRU) Airflow (CFM) **
RU500V PRU500V 500 RU*-500V-2P-HD-F-HD-2P-6F
RU1000V PRU1000V 1000 RU*-1000V-2P-HD-F-HD-2P-6F
RU2000V PRU2000V 2000 RU*-2000V-2P-HD-F-HD-2P-6F
RU4000V PRU4000V 4000 RU*-4000V-2P-HD-F-HD-2P-6F
The full product description is defined below:
1.5 Product Drawings
Details of some standard RU filter systems are shown on the
following AAF drawings:
Model AAF Drawing Number
RU500V 114D-3025889
RU1000V 114D-3025855
RU2000V 114D-3025897
Copies of the appropriate drawings will have been supplied as part of
the AAF submittals in response to the purchase order. Obtain and
review the drawing(s) before proceeding with the installation of the filter
system. The RU filter system drawings include the following details:
– Overall filter system dimensions
– Shipping weights
– Operating weights
4
Supports a 6" deep particulate final filter
Supports a 2" deep particulate after-filter
Second gas-phase chemical filter bank, supports Type HD cassettes
Fan
First gas-phase chemical filter bank, supports Type HD cassettes
Supports a 2" deep particulate prefilter
Nominally rated to deliver 500 CFM in a vertical airflow orientation
Recirculation Unit (RU)