Rockwell Automation FANM FanMaster Energy Saving Package User Manual

Page 33

Advertising

FanMaster Installation

2-15

Allen-Bradley® FanMaster™ Energy Saving Package Installation Manual -

Publication FANM-IN001B-EN-P – December, 2009 PN-65329

14. If the existing fan motor starter provides an auxiliary open or closed

contact when the relay is energized, normal operation of the existing
control system may not be possible without this contact. Therefore,
disconnect the wires from the fan motor started contact and connect it to
the appropriate auxiliary contact terminals provided in the FanMaster
enclosure. The FanMaster auxiliary contacts actuate when the drive is
on and turning the fan. Refer to the schematic diagram,

Figure B.4 on

page B-5

, for details.

15. If using constant ventilation mode, continue with step

16 on page 2-17

The FanMaster damper control override commands the damper to close
periodically in order to reduce the amount of outside air provided to the
AHU to further reduce costs associated with cooling and heating. The
damper override contact (at terminals 119 and 120 on TB2 in the
FanMaster enclosure) can be used to operate contact relay CR3 in the
FanMaster enclosure or a customer supplied interposing relay or
solenoid to close the damper when the output is turned on. Using the
damper override contact output to energize CR3 and wiring the existing
damper control or power signals through the normally closed contact on
CR3 will close the damper when the output is on.

Make the following connections for all installations. Refer to the
schematic diagrams in

Figure B.2 on page B-3

and

Figure B.4 on

page B-5

for details:

a. Install a jumper wire between terminals 1 and 152 on TB2 in the

FanMaster enclosure.

b. Install a jumper wire between terminals 151 and 119 on TB2.

Install a jumper wire between terminals 120 and N on TB2.

d. Complete one of the following sets of steps below based on your

installation: