Pre-Start-Up Checks - Greenheck HVLS Series Installation, Operation And Maintenance Manual

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complies with the following specifications. Cable must
be twisted pair, shielded 26 ga. CAT-5e cable with a
drain wire and must be compliant with ISO 11801. Cable
must use shielded RJ45 connectors with a soldered
drain and wiring configuration must follow EIA/TIA
T568B wiring pinout. Individual CAT-5e cable lengths
must not exceed 200 ft. in order to prevent network
communication issues.
3. Connect the included right-angle adapter to the
CAT-5e communication cable.
4. Open the hinged screw covers on the front side
of the keypad control and remove the supplied
screws to separate the keypad control from the
recessed mounting junction box. Set screws aside.

Pre-Start-Up Checks

If one control will be used to operate multiple fans,
verify that the following fan networking steps have been
completed prior to control start-up. Otherwise, turn to
page 5 to continue with control operation.
Daisy-Chain Communication Wiring
For proper network communication, HVLS fans must be
daisy-chained together using the following instructions.
NOTE: All communication wiring must be installed
in compliance with NEC 800-52 or similar. All
communication wiring needs a minimum separation of
2 inches from high voltage unless installed in separate
raceways/conduit. When possible, maintain 24 inch of
separation.
1. Connect the first HVLS fan in the daisy-chain to
the control using the shielded, twisted pair CAT-5e
communication cable that was provided with the
HVLS fan. CAT-5e cable can be plugged into any
open receptacle on the RJ45 splitter located at the
top of the fan's downtube.
Fan Networking
If networking multiple fans to run using a single control
source, the dipswitch settings on each fan's VFD circuit
board may need to be adjusted using the following
instructions.
®
5. Route the male end of the right-angle adapter
through the cutout on the bottom of the recessed
mounting junction box.
6. Set the recessed mounting junction box in the wall
opening and secure to the wall using appropriate
fasteners (provided by others).
7. Plug the male end of the supplied, shielded CAT-5e
right-angle adapter into the keypad control.
8. Mount the keypad control to the recessed
mounting junction box using the screws set aside
in step 4.
NOTE: Keypad control is powered via shielded, twisted
pair CAT-5e communication cable from the HVLS fan(s).
No additional power source is required.
IMPORTANT: Touchscreen controls, temperature/
humidity sensors, and HVLS fans must be installed with
the supplied CAT-5e communication cable or shielded,
twisted pair CAT-5e (by others) that complies with the
following specifications. Cable must be twisted pair,
shielded 26 ga. CAT-5e cable with a drain wire and must
be compliant with ISO 11801. Cable must use shielded
RJ45 connectors with a soldered drain and wiring
configuration must follow EIA/TIA T568B wiring pinout.
Individual CAT-5e cable lengths must not exceed 200 ft.
in order to prevent network communication issues.
2. Plug an additional shielded, twisted pair CAT-
5e control cable into the 2-way RJ45 splitter
located at the top of the downtube on the first fan.
Connect the other end of this CAT-5e cable into the
2-way splitter on the next fan.
3. Repeat step 2 for subsequent fans until all fans in
the chain are connected in series, as shown in the
drawing below.
CONTROL
FAN 1
High Volume, Low Speed Keypad Control
FAN 2
DIPSWITCH 3
DIPSWITCH 2
3

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