Coolair MNBCDD36J Скачать руководство пользователя страница 9 | Manualshive

Страница: 9 / 12

Coolair MNBCDD36J Скачать руководство пользователя страница 9

AUTO BELT TENSIONER BELT TENSION INSTRUCTIONS

Figure 19 — Motor/Pulley, Tensioner, Disc
and Belt for Model MNBCDD. (The
Tensioner is located on the opposite
upright for Model MNEFDD)

Figure 20 — Tensioner and Belt Showing Tension
Alignment Marks

Blades removed for clarity of detail

For the MNBCDD model, the Auto Belt Tensioner comes from the factory mounted and preset for
adequate belt tension. If further tensioning is required, loosen the 3/8” bolt holding the tensioner to the
tensioner bracket. Then, using a 15/16” wrench, rotate the tensioner assembly such that the alignment
mark is between mark 1 and 2 on the idler arm (see Figure 21). Re-tighten the 3/8” bolt. Turn the blade
assembly by hand to insure free rotation.

Do Not Over Tension The Belt

. This will cause premature

belt and bearing failure. To check that the belt tension is not too high, place a finger midway between
the fan pulley and motor pulley and push inward about 1/2”. The force required to do this

is not

to

exceed 5 pounds.

If an Auto Belt Tensioner is ordered for use with a Model MNEFDD fan, use the instructions included in
the ABT packaging for proper installation and use.

NOTE: The Auto Belt Tightener comes standard with Model MNBCDD, and is an optional accessory for
Model MNEFDD.

Front

View

Mark 2

Mark 1

Alignment mark

Page 9

«
...
7
8
9
10
11
...
»

Содержание MNBCDD36J

Страница 1: ... MNBCDD36K MNEFDD36J MNEFDD36K MNBCDD36J RM MNBCDD36K RM MNEFDD36J RM MNEFDD36K RM UNPACKING Inspect the fan for signs of shipping damage It is the responsibility of the customer to report any shipping damage to the freight carrier WHAT SHOULD YOU FIND Fan 4 Housing Sheets Damper Door Assembly Cone 4 cone panels and 4 cone gussets Rear Housing Guard Front Cone Guard and Hardware Package Figure 1 4...

Страница 2: ...RAMING FRAME CONSTRUCTION RECOMMENDED MINIMUM SPACING IS 12 POST CONSTRUCTION Page 2 Figure 2 DD36 44 3 4 SQ I D DD36 RM 40 3 4 SQ I D Spacing Figure 3 4 x 4 Post DD36 44 3 4 SQ I D DD36 RM 40 3 4 SQ I D ...

Страница 3: ...lts from the outside in and thread the nuts on the inside This process should be repeated for the two remaining sheets After the fourth sheet has been fastened to the third it should also be fastened to the first completing the housing Next lift the housing into place in the wall opening Using the 4 overlapping corner holes and the 3 individual holes in each sheet flange fasten the housing to the ...

Страница 4: ...he motor base remains level 3 The motor pulley should be placed on the motor shaft with the set screw side of the pulley toward the motor Using a long straight bar check the alignment of the motor pulley and the fan hub pulley If necessary loosen the motor pulley set screw and or the motor mounting bolts and adjust as necessary Re tighten pulley set screw and motor mounting bolts IMPORTANT Motor b...

Страница 5: ...he cone so that the larger diameter is up Using four 1 4 flat washers insert four 1 4 X 2 3 4 Guard Stud Bolts into the overlapping holes on the edge of the cone panels from the outside in Place a Guard Spacer over each Guard Stud Bolt Next place a 1 4 whiz lock nut on each Guard Stud Bolt and tighten securely creating the guard studs as shown in Figures 8 9 Now tighten ALL of the 1 4 cone hardwar...

Страница 6: ...e First invert the cone again so that the guard end is on the ground Take the damper door assembly making sure the doors open downward and insert it at an angle into the cone as shown in Figure 11 The end with the door restraining cable should be opposite the drain hole in the cone Once the entire ring assembly has been placed inside the cone level the ring and align the pre drilled ring holes wit...

Страница 7: ...o check for proper damper operation open the doors fully and allow them to close If either door fails to close properly 1 make sure the door rods are aligned exactly vertically If necessary rotate the cone door assembly slightly on the fan orifice until both door rods are vertical 2 make sure the top of the door assembly is leaning 0 5 2 toward the building To do this place a level on each of the ...

Страница 8: ... side of the fan orifice it will be necessary to loosen the two 2 3 8 bolts that secure the blade assembly s hexagonal shaft to the fan x braces center the blade assembly and tighten the bolts to 25 30 ft lbs torque If the blades rub in the fan orifice at the top or bottom it will be necessary to loosen the four 4 3 8 bolts that secure the fan x braces to the fan uprights center the blade assembly...

Страница 9: ...y such that the alignment mark is between mark 1 and 2 on the idler arm see Figure 21 Re tighten the 3 8 bolt Turn the blade assembly by hand to insure free rotation Do Not Over Tension The Belt This will cause premature belt and bearing failure To check that the belt tension is not too high place a finger midway between the fan pulley and motor pulley and push inward about 1 2 The force required ...

Страница 10: ...nd cone See Figure 21 WARNING Protect Fan and Cone from Snow and Ice Buildup WARNING Fan and or cone damage caused by this type of external source WILL NOT be covered by AMERICAN COOLAIR warranties Figure 21 During winter months you may not need to operate all of your fans It is advisable to seal up those fans which will not be used during the colder months to minimize heat loss as well as condens...

Страница 11: ... bearing failure may be induced The damper door assembly should be wiped clean so that the doors will pivot freely open completely and close securely The interior sides of the fan wall housing doors should be washed properly after disinfecting the house to prevent rusting We recommend using Simple Green detergent or a similar product CHECK FASTENERS Inspect all fasteners on the fan This is a very ...

Страница 12: ... USE UNLESS ELECTRICAL WIRING COMPLIES WITH ALL APPLICABLE CODES DO NOT WIRE WITHOUT PROVIDING FOR A POWER SOURCE DISCONNECT AT THE FAN ITSELF DO NOT SERVICE EXCEPT BY A QUALIFIED MAINTENANCE TECHNICIAN AND ONLY AFTER DISCONNECTING THE POWER SOURCE FAILURE TO OBSERVE THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH WARNING CAUTION FARM PRODUCTS DIVISION MEMBER OF AMCA AMERICAN COOLAIR CORPO...

Отзывы:

Нет отзывов