GREENHECK DDF Directional Destratification Fans Instruction Manual
- May 15, 2024
- GREENHECK
Table of Contents
Document 486130
Model DDF
Directional Destratification Fans
DDF Directional Destratification Fans
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. 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 these instructions will result in voiding of the
product warranty and may result in personal injury and/or property damage.
Model DDF directional destratification fans provide improved comfort and reduced energy costs by efficiently mixing air from floor to ceiling to improve temperature uniformity. Fans are ideal for a variety of commercial, industrial and institutional applications, especially in buildings with high ceilings. Features include an aerodynamically optimized housing, high efficiency corrosion resistant propeller with aluminum blades, electronically commutated (EC) Vari-Green® motor, and 10 foot wiring pigtail with plug. Universal mounting bracket includes steel hanging cable and secondary steel safety cable with Gripple® installation hardware.
Important Safety Instructions
Read and save these instructions.
- Only mount fan to building structure.
- Read and follow all instructions, cautionary markings and make sure power source conforms to the requirement of the equipment.
- Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the Occupational Safety and Health Act (OSHA) in the United States, including fire rated construction. Ground motor in accordance with NEC Article 250 (grounding).
- Do not use an extension cord with this fan.
- Do not kink power cord or allow it to contact oil, grease, hot surfaces, sharp objects or chemicals. Replace worn or damaged cord immediately.
WARNING
Always disconnect, lock and tag power source before servicing. Failure to
disconnect power source can result in fire, shock or serious injury. Always
unplug the power cord.
Do not insert foreign objects in between rotating fan blades.
To reduce the risk of electric shock, do not expose to water or rain.
Do not use general purpose fans in flammable, explosive, chemical-laden, or
wet or rainy atmospheres. Do not attach fan to ductwork.
WARNING
To reduce the risk of fire, electrical shock, or injury to persons, observe
the following:
a. Use this unit only in the manner intended by the manufacturer. If you have
questions, contact the manufacturer.
b. Before servicing or cleaning unit, switch power off at service panel and
lock the service disconnecting the means to prevent power from being switched
on accidentally. When the service disconnecting means cannot be locked,
securely fasten a prominent warning device, such as a tag, to the service
panel.
c. Do not use this fan with any solid-state speed control device.
d. Do not use replacement parts that have not been recommended by the
manufacturer.
e. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards, including
frigerated construction.
f. When cutting or drilling into wall or ceiling, do not damage electrical
wiring and other hidden utilities.
Receiving
Upon receiving the product check to ensure all items are accounted for by
referencing the delivery receipt or packing list. Inspect each crate or carton
for shipping damage before accepting delivery. Alert the carrier of any damage
detected. The customer will make a notation of damage (or shortage of items)
on the delivery receipt and all copies of the bill of lading which is
countersigned by the delivering carrier. If damaged, immediately contact your
local representative. Any physical damage to the unit after acceptance is not
the responsibility of the manufacturer.
Unpacking
Verify that all required parts and the correct quantity of each item have been
received. If any items are missing, report shortages to your local
representative to arrange for obtaining missing parts. Due to availability of
transportation and truck space all items for the unit may not be shipped
together. Confirmation of shipment(s) must be limited to only items on the
bill of lading.
Storage
Fans are protected against damage during shipment. If the unit cannot be
installed and operated immediately, precautions need to be taken to prevent
deterioration of the unit during storage. The user assumes responsibility of
the fan and accessories while in storage. The manufacturer will not be
responsible for damage during storage. These suggestions are provided solely
as a convenience to the user.
Storage Environment
The ideal environment for the storage of fans and accessories is indoors,
above grade, in a low humidity atmosphere which is sealed to prevent the entry
of blowing dust, rain or snow. Temperatures should be evenly maintained
between 30° to 110°F (-1° to 43°C) (wide temperature swings may cause
condensation and “sweating” of metal parts). All accessories must be stored
indoors in a clean, dry atmosphere.
The unit should be stored at least 3-1/2 inches off the floor on wooden blocks
covered with moisture proof paper or polyethylene sheathing. Aisles between
parts and along all walls should be provided to permit air circulation and
space for inspection.
Inspection and Maintenance During Storage
While in storage, inspect fans once per month. Keep a record of inspection and
maintenance performed.
If moisture or dirt accumulations are found on parts, the source should be
located and eliminated. At each inspection, rotate the propeller by hand ten
to fifteen revolutions to distribute lubricant in motor.
Removing From Storage
As fans are removed from storage to be installed in their final location, they
should be protected and maintained in a similar fashion until the fan
equipment goes into operation.
Prior to fully assembling and installing the fan inspect the fan assembly to
make sure it is in working order.
- Check all fasteners and set screws on the fan, motor base, and accessories for tightness.
- Rotate the propeller by hand to ensure no parts are rubbing.
Typical Installation
WARNING
Installation and troubleshooting to be performed only by qualified person(s).
WARNING
Use only GFCI receptacles. Not for outdoor applications.
IMPORTANT: Only mount fan to building structure.
-
Remove the fan from its packaging.
-
Using a 3/8 inch socket, loosen the lower bolts on both sides of the fan’s handle so that the handle is able to pivot from side to side. Position the handle at the desired mounting angle, then re-tighten the bolts.
-
Using a 9/16 inch deep well socket, attach the eyebolt to the top of the fan handle.
-
Attach the beam clamp assembly to the ceiling structure. Use the quick connect link to mount the handle eyebolt on the fan to the beam clamp assembly.
-
Wrap the loose end of the factory-installed safety restraint cable around the mounting structure so that the cable is installed 45º to 60º from vertical. Do not allow the cable to come in contact with any sharp edges.
IMPORTANT: Safety restraint cable must be installed for proper function of the fan. Failure to install the safety retention cable will result in voiding of the fan warranty. -
Secure the safety restraint cable to the mounting structure using the provided No. 2 Gripple connector. Pull the loose end of the cable through the Gripple connector to tighten the cable. The cable should be pulled taut, leaving only a small amount of slack to ensure proper functioning.
NOTE: Safety restraint
cable will only feed through the Gripple connector in one direction (marked on
the Gripple connector with an arrow). If necessary, the safety cable can be
loosened by pressing the release button on the Gripple connector and pulling
the cable in the opposite direction of the arrow marked on the Gripple
connector. -
Cut or secure excess safety cable to ensure it does not interfere with fan operation.
-
Plug the factory-installed power cord into a 115V, 1 phase outlet. Secure any excess power cord to the fan’s handle and/or mounting structure.
Operation and Wiring
Balance Dial
The speed control dial (P/N 385806) is factory-installed in the 9-pin
connector on the motor. To increase speed, rotate the dial clockwise. To
decrease speed, rotate the dial counterclockwise. The motor will be off from
0-1.9V and will operate in the 2-10V range.
Maintenance
WARNING
Always disconnect, lock and tag power source before servicing. Failure to
disconnect power source can result in fire, shock or serious injury. Always
unplug the power cord.
IMPORTANT: When making repairs, use only authorized repair parts from the manufacturer.
- With a dry rag, periodically clean propeller, guard, and motor when excessive dirt and particles accumulate. Allow motor sufficient time to cool as it may be hot enough to cause injury.
- Check for unusual noises when fan is running.
- Periodically inspect and tighten all bolts.
Parts List
Each fan bears a manufacturer’s nameplate with the model number and serial number. This information will assist the local representative and the factory in providing service and replacement parts. Before taking any corrective action, make certain unit is not capable of operation during repairs.
Troubleshooting
WARNING
Before taking any corrective action, make certain unit is not hot to the touch
and capable of operation during repairs.
| PROBLEM | CAUSE | CORRECTIVE ACTION |
|---|---|---|
| Fan Inoperative | Blown fuse or open circuit breaker | Replace or repair |
| Defective motor or switch | Replace or repair | |
| Balance dial is loose or not installed | Ensure balance dial is fully plugged |
into 9-pin connector on motor
Fan Cycles On and Off| Thermal protector| Check for obstructions to airflow,
low or high voltage, excessive intake air temperatures above 140°F
Faulty wiring or balance dial| Replace or repair
Excessive Noise While Operating| Loose or damaged propeller| Tighten or
replace
Motor not secure| Tighten motor nuts
Insufficient Air Flow| Guard excessively dirty| Clean guard
Balance dial set too low| Rotate balance dial clockwise to increase fan speed
Propeller Rubbing| Improper location| Loosen (4) bolts connecting motor to
guard and reenter the propeller. 1/8 inch clearance from propeller to housing
is desired.
Maintenance Log
Date ___Time _ AM/PM
Notes: _____
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves
the right to change specifications without notice. Product warranties can be
found online at Greenheck.com, either on the specific
product page or in the literature section of the website at
Greenheck.com/Resources/Library/Literature.
Greenheck’s ARC submittal provides additional information describing the
equipment, fan performance, available accessories, and specification data.
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail:
gfcinfo@greenheck.com • Website:
www.greenheck.com
486130 • DDF Directional Destratification Fans, Rev. 1, July 2023
Copyright 2023 © Greenheck Fan Corporation