15
CAUTION: Connect a safety ground and follow the National Electrical Code!
Figure 7: Fan and Cooling Wiring
Notes:
• The fans connect in standard order (meaning factory labeled) in the RBU-27 SE.
• Cool 1 (Platinum Relay) and Cool 2 (Platinum Relay) connect from the Platinum Extension Box to Fan 15 and Fan 16
terminals in the RBU-27 SE.
• Avoid using 120 volt motors (Cool 1 and 2) if possible. They stress Platinum relays more than 240 volt motors. If you
do use 120 volt motors, derate from 2 HP UL about 50%.