PennBarry DX06R Installation Manual

Operation & Maintenance Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product de­scribed. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury
and/or property damage! Retain instructions for future reference.

Domex, Centrifugal Roof, Direct & Belt Drive Exhausters

Description

PennBarry roof-mounted ventilators are belt-driven centrifugal exhausters designed to
meet air delivery requirements where steady exhaust is needed under moderate static
pressure. Housings are of spun aluminum construction with built-in bird screen. Ventila­tors are furnished with self-aligning, pre-lubricated, ball bearing pillow blocks, spark
proof aluminum wheels, and aluminum backdraft damper.

Receiving and Handling

PennBarry fans are carefully inspected be­fore leaving the factory. When the unit is
received, inspect the carton for any signs
of tampering. Inspect the unit for any dam­age that may have occurred dur-ing transit
and check for loose, missing or damaged
parts. Mishandled units can void the war­ranty provisions. If units are damaged in
transit, it is the responsibility of the receiver
to make all claims against the carrier. Pen­nBarry is not responsible for damages in­curred during shipment.

Avoid severe jarring and/or dropping.
Handle units with care to prevent damage

to components or nishes. If the unit is

scratched due to mishandling, the protec­tive coating may be damaged. Incorrect
lifting may damage the fan and void the
warranty.

Storage

Long-term storage requires special atten­tion. Store units on a level, solid surface,
preferably indoors. If outside storage is
necessary, protect the units against mois­ture and dirt by encasing the cartons in
plastic or in some similar weatherproof
material. Periodically inspect units and
rotate wheels to spread bearing lubricant.
Failure to rotate wheels results in reduced
bearing life and may void the manufactur­er’s warranty. If the unit will be stored for
an extended time, remove belts. Belts
which remain under tension in a stationary
position for extended periods are like-ly to
have a reduced operating life.

Unpacking

Place the carton in an upright position and
remove the staples or use a sharp (knife
edge) tool to carefully cut or scribe the
sealing tape on both sides at the top of the

carton. Open carton aps. Remove any
cardboard and wooden ller pieces, as

well as loose components or accessories
shipped with the unit.

Carefully remove the unit from the carton.
Inspect the unit for any damage that may
have occurred during transit and check for
loose, missing or damaged parts.

Installation

!

NOTE

Zones, unit must be installed per
instructions on page 4.

INSTALLING MOTORS

In some instances, large frame motors

may be shipped loose and require eld

mounting. If so, carefully review motor
mounting installation procedures per Fig­ure 1, Figure 2 and Figure 3.

INSTALLING THE DAMPERS:
ROOF MOUNTING

When required, install dampers prior to
mounting the unit on the curb or frame.
Secure dampers to the inside of the roof
opening (preferred) or curb without undue
twisting, which may distort the damper
frame. Damper frame must be reasonably
level on all sides. Check for free opera­tion. If dampers are motor operated type,
ascertain that proper voltage is impressed
on motor terminals.

POSITIONING AND RUNNING POWER
LINES: ROOF MOUNTING Power is nor-

mally brought from within the building
through proper conduit lines and placed
inside one corner of the curb. Feed power
line through the clearance hole provided
in the damper, if furnished, and in turn
through the ventilator to the discon-nect
switch, if furnished, and motor.

For Installation in high
velocity Hurricane

Figure 1: Motor Installation Procedures

1401 North Plano Road, Richardson, Texas 75081
Phone: [phone] | Fax: [phone]

Figure 2: Motor Installation Procedures Figure 3: Motor Installation Procedures

Type 2 Type 3 Type 1

PENNBARRY 1

Operation & Maintenance Manual Domex, Centrifugal Roof, Direct & Belt Drive Exhausters

When power lines are brought up to the
unit, provide a generous amount of slack
to allow for motor adjustments and to per­mit movement of motor for belt tension ad­justments. Ground motor adequately and
securely. Protect power lines from sharp
objects. Do not kink power line or permit it
to contact hot surfaces, chemi-cals, grease
or oil. Use only UL recog-nized electrical
parts, rated for proper voltage, load and
environment. Check motor name plate.

ANCHORING AND SECURING THE
VENTILATOR: ROOF MOUNTING

Whenever possible, anchor the fan by fas­tening through the vertical portion of the
mounting ange. The type, size and num­ber of fasteners depends upon the unit size
and curb construction. If code or specica­tion prescribes fastening through the top

(vertical portion) of the mounting ange,

use neoprene or lead washers under the
head of each fastener.

Guy down large units installed in areas

subject to high winds or unusual eld con-

ditions. If the installer removes any venti­lator parts to facilitate installation or elec­trical connections, reassemble all parts by
replacing all spacers, washers, nuts, bolts,
fasteners and components exactly as they
were found prior to removal. Draw all fas­teners tight and secure. Fasteners should
be protected against corrosion.

MOTOR INSTALLATION PROCEDURES

1. Install motor pulley assembly (bracket if
provided - type 3) with hardware pro­vided through holes in motor mount­ing plate/frame. Keep driven pulley
and drive pulley in line. (Do not tighten
hardware).

2. Install belt over drive and driven pul­leys, pull up on motor mounting plate/
bracket until belt is tight. Tighten motor
plate hardware.

3. Wire motor or plug harness connec-tor
(from motor if equipped) into terminal
socket at end of junction box. Unit is
now ready to test to check for smooth
operation.

4. See belt adjustment label, and Fig.
4, for more details.

5. Check for proper wheel rotation.

Start-Up and Operation

Carefully inspect the unit before start-up.
All motor bearings should be properly lu­bricated and all fasteners should be se­curely tightened. Rotate centrifugal wheel
by hand to insure free movement.

Before placing hand

on centrifugal wheel
or belts, lock out power source.) Check all
set-screws and keys. Tighten when neces­sary.

Check condition of belts and the amount
of tension prior to start-up. DO NOT over­tighten, as bearing damage will occur.

Recommended belt tension should per-

mit deection of 1/64” per inch of span.

Exercise extreme care when adjusting
belts as not to misalign the pulleys. Any
misalignment will cause a sharp reduction
in belt life and produce squeaky, annoying
noises. On units equipped with two groove
pulleys, adjust all belts with equal tension.
Belts must be adjusted after approximate­ly 40 hours of operation.

Figure 4: Pulley Alignment & Tension

WRONG WRONG CORRECT

Not to exceed 1/64” per inch of span

Whenever belts

are removed or
installed, never force belts over pulleys

without loosening motor rst to relieve

belt tension.

Make sure inlets and approaches to the
unit are free from obstruction. To assure
maximum air movement, make sure ade­quate supply air is available to ventilated
space.

Before putting fan into operation, com­plete the following check list:
a. Turn off and LOCK OUT the power
source.

b. Make sure installation is in

accordance with manufacturer’s in­structions.

c. Check and tighten all fasteners.

d. Spin centrifugal wheel to see

if rotation is free.

e. Check all set-screws and keys:

tighten if necessary.

f. Torqued set screws have a colored

Torque Seal mark indicating the cor­rect torque has been applied.

g. Check belt or direct drive coupling

for alignment (use recommended
belt tension gauges).

h. Check belt for proper

sheave selection.

i. Make sure there is no foreign or

loose material in ductwork leading to
and from fan or in the fan itself.

j. Properly secure all safety guards.

k. Secure all access doors to fan

and ductwork.

l. Check line voltage with

motor nameplate.

m. Check wiring.

(On single phase mo-

tors, the terminal
block must be set up in accordance with
the nameplate instructions and/or wiring
diagram. This set up must match the line
voltage. If the motor is multi-speed or
multi-voltage, the winding leads must be
grouped and connected as shown on the
motor wiring diagram. The line voltage
must correspond with proper grouping
of motor leads. The wiring diagram must
be followed explicitly or serious motor or
starter damage will occur.) Don’t operate
at RPM higher than catalog.

The ventilator has been checked at the fac­tory prior to shipment for mechanical noises.
If mechanical noises should develop:
a. Check rotating components
for adequate clearance (wheel align-ment pr
cedures are on page 7) and direction of rota­tion. CCW looking from drive side.
b. Check proper belt tension and pulley
alignment.
c. Check installation and anchoring.
d. Check fan bearings.

Switch on electrical supply and allow fan to
reach full speed.

Check carefully for Correct rotation of the
centrifugal wheel.

Incorrect rotation

overloads motor
severely and results in serious motor dam­age. To change rotation of three phase
units, interchange any 2 of the 3 line leads.
On single phase units, change the terminal
block set-up following the wiring diagram on
the motor.

1401 North Plano Road, Richardson, Texas 75081
Phone: [phone] | Fax: [phone]

PENNBARRY 2

Domex, Centrifugal Roof, Direct & Belt Drive Exhausters

Operation & Maintenance Manual

2. Check motor and bearing
temperatures for excessive heat.

Use care when touch-ing

the exterior of an oper­ating motor. Modern motors normally run
hot. They are designed to operate at higher
temperatures. This is a normal con-dition
but they may be hot enough to be painful or
injurious to the touch.

If any problem is indicated, TURN OFF
POWER TO UNIT IMMEDIATELY. Lock
out the electrical supply, check carefully
for the cause of the trouble and correct
as needed. Even if the fan appears to be
operating satisfactorily, shut down after a
brief period and check all fasteners, set­screws and keys for tightness.

During the rst eight (8) hours of opera-

tion, check the fan periodically for exces­sive vibration or noise. At this time, also
check motor input current and motor bear­ing temperatures to insure that they do not
exceed manufacturer’s recommenda-tions.
After eight hours of satisfactory operation,
shut down the fan and lock out the electri­cal power to check the following items and
adjust if necessary:
a. All set-screws, keys and fasteners.
b. Drive coupling alignment.
c. Belt alignment.
d. Belt tension.

Maintenance

Do not attempt maintenance on fan until
the electrical supply has been completely
disconnected. If a disconnect switch has
not been provided, remove all fuses from
the circuit and lock the fuse panel so they
cannot accidentally be replaced.
Lubrication is a primary maintenance
responsibility. Check all bearings periodi­cally. Inspect belts for tightness. If the fan
is installed in a corrosive or dirty atmos­phere, periodically clean the impeller, inlet
and other moving parts.

FAN SHAFT LUBRICATION

Fan shaft bearing pillow blocks are fur­nished in either the prelubricated sealed­for-life type or the greasable type depend­ing on what was ordered. The prelubricat-ed
type requires no servicing for 7 to 10 years
of normal use and the greasable type are
factory greased eliminating the need for
greasing initially. Follow the lubri-cating
schedule recommended by the fac-tory.
When required, apply grease while the
shaft is rotating. This practice should not
supersede any safety considerations.

Use low pressure grease

guns tend to blow out or unseat bearing
seals, leaving the bearing open to collect
grime, dust and foreign particles.

guns only. High pressure

LUBRICATION SCHEDULE

Always follow the bearing manufacturer’s
recommended lubrication schedule. If
none is available us the following general
schedule.

a. Under average conditions where ambi­ent temperatures do not exceed 120°F.,
lubrication is required 1 to 2 times a year.

b. Under dirt laden atmospheres or where
there is a temperature range of 120°F to
150°F, lubrication is required from 3 to 6
times a year.

c. Under extreme temperature conditions
and extremely dirty atmospheres, lubrica­tion should be at least once or twice a
month.

Table 1: Recommended Lubricants

Manufacturer Product Temp. Range

BP LG-#P-1

Gulf Gulfcrown EP-1

Imperial Oil Unirex EP-1

Shell Alvania R-1

BP

Gulf Gulfcrown EP-2

Imperial Oil Unirex EP-2

Shell Alvania R-3

Sun Oil Sun Prestige 42

Texaco Regal AFB2

Energrease,

MPMK11

Below 32° F

(0° C)

32° F to 150° F

(0° C to 66° C)

MOTOR LUBRICATION

In general, standard motors are furnished
with prelubricated, sealed-for-life ball bear­ings which require no lubrication for 7 to
10 years of normal service. Where motors
have been ordered with greasable bear­ings, these bearings are factory lubricated
and require no attention for one year under

normal conditions. If grease relief ttings

are provided, remove them when perform-

ing maintenance to allow grease to ow

out. Whenever possible, apply grease while
the motor is running. This practice should
not supersede any safety considerations.
DO NOT OVER GREASE, as most lubri­cants deteriorate motor windings, thereby
reducing motor life.

Hidden Danger

In addition to the normal dangers of rotat­ing machinery, fans present an additional
hazard in their ability to suck in not only air,
but loose material as well. Solid objects can
pass through the fan and be discharged
by the impeller as potentially dangerous
projectiles. Therefore, screen intake to
ductwork, whenever possible, to prevent the
accidental entrance of solid objects. Never
open access doors to a duct system with the
fan running.
When starting the fan for the rst time, com­pletely inspect the ductwork and inte-rior
of the fan (with power locked off), to make
certain there is no foreign material which
can be sucked into or blown through the
ductwork.

Guards

All fans have moving parts which require
guarding in the same way as other moving
machinery.

Where the fan is accessible to untrained per­sonnel or the general public, use maximum
safety guards, even at the cost of some
performance loss. Unprotected fans located

less than 7’ above the oor also require
guarding as specied in the Occupational

Safety and Health Act (OSHA).

PennBarry recommends the use of guards
on all exposed nonducted fans, ceiling and
wall mounted.

Centrifugal fans may be connected directly
to ductwork which will prevent contact with
the internal moving parts, but when the inlet
or outlet is exposed, install a suitable guard.

1401 North Plano Road, Richardson, Texas 75081
Phone: [phone] | Fax: [phone]

PENNBARRY 3

Operation & Maintenance Manual Domex, Centrifugal Roof, Direct & Belt Drive Exhausters

Typical Concrete Slab Roof Installation

Typical Steel Framed Roof Installation

Typical Wood Framed Roof Installation

Installation Notes: All four sides of curb and base are anchored identically.
Curb Notes: 18 gauge galvanized steel minimum, maximum height 18”

1401 North Plano Road, Richardson, Texas 75081
Phone: [phone] | Fax: [phone]

PENNBARRY 4