Document vVjaDRnN7krKEk5bxqEVEZYm

Air System Equipment outlets and Grilles The Pyle-National Company Multi-Vent Division 1363-78 N. Kostner Ave. Chicago 51, Illinois Sales Engineers and Agents in Principal Cities of U. S. and Canada < S A. Air Duct--recommended air velocity 1000 fpm. B. Four inch dia. clean cut hole in bot tom or sides of duct to receive duct collar. C. Four swinging anchor clips support panel on tee-runners of metal pan ceiling suspension. D. Any standard perforated 12 in. x 24 in. acoustical metal pan (with pad re moved), supplied by ceiling contractor, functions as a distribution plate in metal pan ceilings.* E. MVC Duct Collar. Snaps into 4 in. dia. hole. No tools required. F. MVH--Flexible and compressible, neoprene impregnated, fire-retardant, fiber-glass tubing permits variation in alignment between duct opening and panel. G. MVM--Modular Panel with adjust able perforated volume control valve. Seats in standard metal ceiling pan, plaster or tile perforated distribution plate. (See below.) H. Perforated distribution plate MVP, MVT or standard acoustical inetal pan to suit ceiling construction. S m-&.V ifi M i '-A*.!? M D. ADVANTAGES OF MULTI-VENT TYPE AIR DIFFUSER 1. Conditioned air is delivered straight down into the room at a comfortable low velocity. 2. Complete concealment when used with standard perforated metal pan ceil ings. 3. Complete freedom of partition move ment with no mechanical adjustment or relocation required because air gently drops straight down. 4. Eliminates dirt smudge on ceiling, usually found adjacent to conventional diffusers having horizontal high velocity distribution. 5. Exceptional performance with no drafts even when used on applications requiring 60 air changes per hour. Sect-l-C-Page-37 of the Multi-Vent Engineering Manual for Sound Level Data. 1454 Air System Equipment ouUets and Grille THE PYLE-NATIONAL COMPANY Multi-Vent Division MVM MODULAR PANEL ; SELECTION DATA Static pressure required in inches water gauge for duct applications at vari ous valve settings. Pres sures listed include distri bution plate, panel, valve and 12 in. length of 4 in. dia. tubing.* VALVE OPENED TO: CFMf BTU/ LIMIT HR M* H* H' H' 60 971 .138 .099 .087 .077 45 971 .076 .055 .048 .043 36 971 .048 .035 .031 .027 For plenum applications'consult factory t Refer to sound level chart when perforated acoustical ceiling pans are used for distribution TYPE-MVAR UNITARY MULTI-VENT PANEL 1. The Control Plate and Frame are in stalled in the bottom of the air supply duct of plenum or in a collar extending down through the ceiling. cleaning equipment, perforations will ' not clog. 2. The Pressure Displacement Air Valve is located in the center of the control plate. Its function is to control the volume of air admitted to the unit and to reduce both velocity and pressure of the incoming air. 3. The Perforated Plate spreads the de livery of the incoming air over a large area and further reduces the velocity which, in a typical installation, is only 30 to 50 ft per minute at 6 in. below the perforated plate. Even tvith relatively inefficient air Type MVAR Multi-Vent Panel for duct or plenum application* TYPE MVAR PANEL SELECTION DATA PANEL CATALOG No. MVAR-122-1 MVAR-123-2 MVAR-124-2 MVAR-125-3 MVAR-126-3 Wdth ft PANEL DIMENSIONS .c g < 12 2 3 14 3 4 15 5 16 6 COOLING OR COMBINATION HEATING <fc COOLING LIMITS PER PANEL CUBIC FEET PER MINUTE BTU/HR SENSIBLE HEAT 5 T/D 74 111 148 185 222 10* T/D 70 105 140 175 210 15* T/D 60 90 120 150 180 20* T/D 46 69 92 115 138 25* T/D 36 54 72 90 108 5* T/D 405 600 799 999 1199 10* T/D 756 1134 1512 1890 2268 15* T/D 972 1458 1944 2430 2916 20* T/D 994 1490 1987 2484 2981 25* T/D 972 1458 1944 2430 2916 MVAR-224-1 2 8 280 240 176 144 104 1512 2592 2851 3110 2808 MVAR-245-1 2 5 10 300 300 220 180 130 1620 3240 3564 3888 3510 MVAR-246-1 2 6 12 300 300 264 216 156 1620 3240 4277 4666 4212 MVAR-364-1 3 4 12 300 264 216 156 120 1620 2851 3499 3370 3240 MVAR-365-1 3 5 15 300 300 270 195 150 1620 3240 4374 4212 4050 M VAR-365-2 3 5 15 450 330 270 195 150 2430 3564 4374 4212 4050 MVAR-366-1 3 6 18 300 300 300 234 180 1620 3240 4860 5054 4860 MVAR-366-2 3 6 18 540 396 324 234 180 2916 4277 5249 5054 4860 1455