background image

 

2.5"

(FROM FRONT OF HOOD)

TYPICAL HANGER ROD

BRACKET ISOMETRIC

HOOD

2.25"

TOP OF

2.5

HANGER BRACKET
OFFSET 1/2" FROM
EDGE OF HOOD

Ø 17/32"

PRE DRILLED HOLE,

ACCEPTS UP TO
1/2" Ø  ROD

HANGER ROD

HANGER ROD NUT

Standard  

Dynaflow MJ hood Specification 

The unit casing shall be a minimum 18 GA. stainless steel, with No. 4 finish on all exposed surfaces. The hood shall include UL/ULC 
listed grease filters mounted in an integral stainless steel rack inclined at 45 degrees. The filter rack shall include a full length stainless 
steel grease gutter and grease cup.  
The MJ blowers provides ceiling return air to the MJ plenum which discharges out the bottom of the plenum through a s/s perforated 
plate along the length of the MJ plenum. The return air is directed through the MJ plenum towards the appliances. MJ blower(s) mounted 
on top of the plenum shall be complete with adjustable Triacs, washable filters and wired to a common J-box on top of the hood. A 
fusible link fire damper is located below each MJ blower.  
The hood shall have ______ incandescent/fluorescent/recessed/incandescent/LED lights evenly spaced along the length of the hood.  
Optional Sideflow right and/or left MJ blower assemblies are available. 

 
 

Dynaflow Installation 

The Dynaflow hoods are hung from 4 or more hanging brackets 
(depending on the model) mounted on top of the hoods as 
indicated on the engineering drawings.   The engineering 
drawings indicate number and location of the hanger bracket.  

All hanger brackets shown on the Spring Air Systems 
drawings must be used to support the hood.  Spring Air 
Systems assumes no responsibility for the field installation 
of the any hood. 

 
A typical schematic is shown to the right with recommend 
method on installing the hanger rods to the hanger brackets.  
The size of the hanger rods, washers and nuts must be 
determined by a structural engineer based on hood weight and 
site conditions.  All hood weight is shown on the Spring Air 
Systems section view drawing. The hanger rods must be size to 
safely hold the weight of the hood from the structure above.  
The structure above must be designed to hold the weight of the 
hood.  Structural engineers will be required to determine what is 
acceptable.  The hanger bracket diagram indicates how the rod 
is attached to the hood.  All hanger rods must be installed 
perpendicular to the roof of the hood. 

MJ BLOWER

MJ BLOWER

FOUR (4)HANGER

BRACKET LOCATION

MJ DYNAFLOW PLAN VIEW

APPLIANCE

2.5"

(FROM FRONT OF HOOD)

TYPICAL HANGER ROD

BRACKET ISOMETRIC

HOOD

2.25"

TOP OF

2.5

HANGER BRACKET
OFFSET 1/2" FROM
EDGE OF HOOD

Ø 17/32"

PRE DRILLED HOLE,
ACCEPTS UP TO
1/2" Ø  ROD

HANGER ROD

HANGER ROD NUT

HANGER ROD BY INSTALLER

MJ DYNAFLOW HANGER BRACKET SECTION VIEW

 

 
 
 
 

Wall mounted Dynaflow model FN-B-MJ Hood in Plan and Section View showing hanger rod locations. 

Figure 7

Hanger Rod Schematic 

Figure 6 

Содержание Dynaflow

Страница 1: ...Dynaflow Hood Installation and Maintenance Manual ___________________________ Spring Air Systems Inc Oakville Ontario Phone 905 338 2999 Fax 905 338 0179 info springairsystems com 2010 Revision 1 0...

Страница 2: ...osition 9 Grease Filter for Dynaflow Hoods 10 MJ Blower assembly for all MJ hoods 13 Dynaflow Maintenance Schedule 14 Trouble Shooting and Cleaning 15 Measuring Exhaust Air flow with VE HE EC and Sa F...

Страница 3: ...ranges on single row wall mounted island double row cooking or island single row cooking equipment lineups The hood is ceiling hung with a maximum mounting height of 87 2209 mm from the lower front e...

Страница 4: ...raction Efficiency Cascade baffles for Enviro applications and reducing grease discharge from buildings EC Easy Clean Teflon standard grease extraction efficiency baffles for hot heavy grease laden ap...

Страница 5: ...apture and chef comfort within the commercial kitchen Standard Dynaflow MB hood Specification The unit casing shall be a minimum 18 GA stainless steel with No 4 finish on all exposed surfaces The hood...

Страница 6: ...ANOPY END VIEW MESH FILTERS RHEOSTAT SIDEFLOW DISCHARGE HOOD CANOPY FRONT RIGHT VIEW S S PERFORATED DISCHARGE FRONTFLOW MJ PLENUM FIRE DAMPER MJ BLOWER MESH FILTERS RHEOSTAT S S PERFORATED DISCHARGE S...

Страница 7: ...ounted on top of the hoods as indicated on the engineering drawings The engineering drawings indicate number and location of the hanger bracket All hanger brackets shown on the Spring Air Systems draw...

Страница 8: ...hood straight up Do not remove the lifting device until the hood is secure After the hood is securely hung the exhaust and supply ductwork can be connected Welding the Exhaust Duct to the Hood Exhaust...

Страница 9: ...er blade stops and seals The second drawing shows the damper as the fusible link has been removed The damper will rotate clockwise against the damper bar weight and close The complete assembly is part...

Страница 10: ...ers up over 32 long SPRING WELDED TO DUCT COLLAR PIN WELDED TO FIRE DAMPER BLADE S S FUSIBLE LINK CABLE FUSIBLE LINK CABLE BLOCK LEGEND SPRING SPRING UNDERSIDE OF TOP OF HOOD FIRE DAMPER SHAFT EXHAUST...

Страница 11: ...mbly from the damper pin The fire damper will close and the complete assembly will hang loose from the spring Loosen the set screw on the adjustable block and pull the stainless steel cable through th...

Страница 12: ...s carried out inside the Cartridge Filter not on any visible surface The Cartridge Filter is always aesthetic pleasing because the smooth stainless steel surface does not collect oil or grease The Car...

Страница 13: ...e inner surfaces with hot water and detergent After cleaning just close the Cascade lock the handles together and put them back in the hood filter rack EC Easy Clean Teflon Filters for Heavy Grease Ap...

Страница 14: ...removal device to minimize the entrance of these sparks and embers into the grease removal device and into the hood and duct system NFPA 211 CHAPTER 1 11 2 B STATES b The arrestor screen shall have he...

Страница 15: ...ed on the switch MTG plate The return air from above the hood enters the washable filters travels through the tangential blowers and discharges into the MJ plenum through a fusible line fire damper Ea...

Страница 16: ...rease trough Remove the grease cup and clean if necessary SIX MONTHS 1 Check the exhaust fan belts for alignment tightness and wear Adjust and or replace 2 If the hood has an exhaust duct collar fire...

Страница 17: ...ripped Inspect the magnetic starter or VFD overload 4 Exhaust fan disconnect open on the roof 5 Exhaust fan breaker open at the breaker panel 6 Exhaust fan motor or fuse or breaker blown 7 FD type Dyn...

Страница 18: ...measure the total CFM or average velocity of each filter Hold the instrument perpendicular to the face of each filter The Velometer should be within 1 of the filter face for best results Once the each...

Страница 19: ...t perpendicular to the open filter slot at the bottom of the filter Place the hot wire anemometer directly in the filter slot Take one reading at the bottom of each slot as shown in Figure 25 below Ca...

Страница 20: ...2 578 900 333 416 520 650 1000 370 462 578 723 1100 407 509 636 795 1200 444 555 694 867 1300 481 601 752 939 1400 518 647 809 1012 1500 555 694 867 1084 1600 592 740 925 1156 1700 629 786 983 1228 18...

Страница 21: ...394 493 616 770 1000 438 547 684 855 1100 482 602 753 941 1200 525 657 821 1026 1300 569 712 889 1112 1400 613 766 958 1197 1500 657 821 1026 1283 1600 701 876 1095 1368 1700 744 931 1163 1454 1800 7...

Страница 22: ...ing is for the heaviest appliance and the Closed setting is for the lightest appliances To adjust the setting to match the appliance A Loosen the two wing nuts located in the middle of the air inlet B...

Страница 23: ...21 Chart No 4...

Страница 24: ...s less air to the Chef Region and turning the Comfort Tuning Dial towards the blue dot provides more air to the Chef Region To measure the Appliance Region air velocity rotate the Comfort Tuning Dial...

Страница 25: ...rect velocity as indicated in Chart No 4 is achieved C Adjusting the air velocity to the Chef Region The amount of air directed to the Chef Region is a personal decision When commissioning an MB hood...

Страница 26: ...w to convert the average velocity reading per grille to CFM Hood Appliances VS Appliance Region Face Velocity Average Velocity fpm MBFront41x 6 CFM MBFront33x06 CFM 50 69 55 75 104 83 100 138 110 125...

Страница 27: ...portions the volume of air to the chef Turning the Comfort Tuning Dial towards the red dot provides less air to the Chef Region and turning the Comfort Tuning Dial towards the blue dot provides more a...

Страница 28: ...we recommend the following Heavy Appliances Charbroilers Woks Rotate the Comfort Tuning Dial towards the blue dot three 3 rotations clockwise Medium Appliances Griddles and Ranges Rotate the Comfort...

Отзывы: