Greenheck HBTR & HCDR Series (469619) - Manual (Page 2)

Installation Guidelines -
Failure to follow instructions will void all warranties
The basic intent of a proper installation is to secure the heavy duty/industrial control damper into the opening in such a
manner as to prevent distortion and disruption of damper operation. The following items will aid in completing the damper
installation in a timely and effective manner.
SAFETY DANGER !
Electrical input may be needed for
this equipment. This work should be
performed by a qualified electrician.
Electrical Guidelines
SAFETY CAUTION !
Verify power requirements before wiring
actuator. Greenheck is not responsible
for any damage to, or failure of the unit
caused by incorrect field wiring.
Electrical and/or pneumatic connections to damper actuators should be made in accordance with wiring and piping
diagrams developed in compliance with applicable codes, ordinances and regulations.
Damper Maintenance
Greenheck's dampers are designed to be trouble free and hassle free under normal operation. Dampers are to be installed
square and straight so as to prevent binding during operation. The following annual damper maintenance suggestions will
help to insure proper damper operation and increase the life expectancy of the damper.
Foreign Matter Over the course of time, dirt and grime may collect on damper surfaces. The damper surfaces
should be cleaned to prevent hindrance to airflow.
Moving Parts Make sure that parts such as linkage, bearings, blades, etc. that are intended to move freely,
can do so. Lubricating these components can prevent possible rusting and unnecessary friction
increase. Use only a molybdenum spray oil or similar graphite based oil on sleeve bearings as
regular lubricating oil will attract dirt.
Bearings. Synthetic, oil impregnated, carbon sleeve, and ball bearings (without grease fittings)
do not require lubrication. Ball bearings with grease fittings should be lubricated as follows:
Maximum Duct Temperature Lubricant Minimum Frequency
250° F 121° C
NLG1 Grade 2 lithium
12-hydrostearate grease
twice a year
600° F 316° C
Hi temperature synthetic,
Mobillith SHC100 or equal
four times a year
1) Dampers are supplied standard without mounting
holes. Drill or punch as required. If mounting holes are
supplied, use appropiate gasketing between mating
flanges. Closed cell sponge rubber, solid rubber,
maximum 60 durometer, or fiberglass drop warp tape
is recommended. For HBTR series, the seal between
the mating ductwork and the dampers flanges should
be tested to ensure a bubble tight seal is achieved.
If damper is replacing existing damper, clean mating
surfaces prior to installing new damper.
2) Allow minimum of half of the blade diameter, upstream
or downstream, in the duct for blade rotation.
3) Damper can be mounted vertically or horizontally with
axle horizontal. A split shaft collar must be added to
shaft to resist the blade weight if axle centerline is other
than horizontal.
4) Isolate damper from high vibratory loadings.
5) If any NEMA electrical enclosure is supplied, use
appropriate electrical connections so as to maintain the
NEMA rating.
Do’s
1) Use damper lifting lugs as provided.
2) Install all mounting bolts before tightening. Tighten in
even and staggered pattern to evenly compress flange
gasketing.
3) Mating flange must be flat and in the same plane.
4) Verify that damper does not strike mating ductwork or
internal ductwork reinforcing when blade is in the open
position.
5) Provide expansion joints upstream/downstream for
angled ductwork so damper is not subjected to thermal/
wind load forces off the centerline of damper.
Dont’s
1) Do not lift damper with chain/strap with blade propped
open and with chain/strap through frame as this could
damage blade seal.
2) Do not use actuator, linkage, or axles as lifting point.
3) Do not use prybar to match frame holes to mating
ductwork as frame can be warped or pulled out-of-
round by excessive force.
4) Do not tighten mounting bolts by starting at one point
and “walking” around the damper as uneven flange
compression can result.