Greenheck Vari-Green 309025, Installation, Operation And Maintenance Manual

Page: 17 / 92

Controls: Operation,
Wiring and Troubleshooting
Remote DiaifTouch Remote and
2-Speed Control
Other Vari-Greenl!>controls, such as the Constant
Pressure and Air Quality families of controls, have their
own manual that ship with the controller. They can also
be found on Greenheck.com. See table on page 9 for
document numbers.
2X4
JUNCTION
BOX
VARIOGR~.
GREW INDICATOR LIGHT
-POWER PRESEIH
TRANSFORMER
I-
COM--- -
12',----
"1----
I I D •• IOV
,
o
------- FIELD WIRING
------ rACTORv WIRINC
REMOTE DIAL/
TOUCH REMOTE
Remote DiallTouch Remote Assembly
I..
115/230 VAC INPUT
TO MATCH MOTOR NAlAE PLATE
Remote Dial
Installation Overview: The remote dial is provided
with the fan, shipped loose for remote installation.
It also includes a factory mounted 24 VDC transformer.
1. Disconnect power to the fan.
2. Identify where the remote dial will be mounted.
3. Mount a standard single-gang 2x4 junction box.
4. Run a 3-wire control cable from the remote dial
to the fan motor compartment. The maximum
distance from the fan to the remote dial is 100 feet.
If a greater distance is required, signal loss may
occur and cause the fan to operate erratically.
5. Connect control cable to transformer mounted
inside fan motor compartment. Connect control
cable to remote dial.
6. Secure remote dial to 2x4 junction box.
Touch Remote
Follow installation instructions above. After Power is
applied to the system, operate as follows:
1. Touch power button to turn fan on.
2. Touch UP/DOWN arrow to increase/decrease speed.
3. Subsequent touches of the power button will start
the countdown timer of 90, 60, 30 or 10 minutes.
4. LED's will turn off after a periods of inactivity.
5. To lock/unlock buttons, hold the UP and DOWN
arrows for 3 seconds. When locked, the power
button will light up red.
---------------
---------------
CAUTION
Even though the motor may not be operating,
high voltage power may still be present at the motor.
Make sure to disconnect power to the fan before
servicing.
Troubleshooting - Remote Dial Touch
Remote
Remote Dial does not adjust motor RPM
1. Check voltage to ensure the motor and transformer
are receiving the correct line voltage.
2. Check voltage at the remote dial. 24 VDC should
be present across the 24V and COM terminals.
0-10 VDC should be present across the 0-10Vand
COM terminals.
3. Verify all of the connections at the transformer and
make certain that they are secure.
4. Touch remote: Verify that the touch remote is
unlocked.
, ....• TenTIinal~i .•.
't/
.
"',
..Desired Voltage
"
24V-COM
24 VDC Nominal
0-10V-COM
0-10 VDC
(varieswith
dial
position)
l1J.