Danfoss VLT HVAC Drive FC-102P45KT4 [6/10] Notice

Mounting the Pressure Tubes

PTU 025 has 5 mm (0.2 in) tube connection taps. Attach high-pressure input tubes to the taps labeled H +, and the low-pressure

tubes on the L - taps. To prevent clogging of sensors, attach tubes to all connection taps. See Illustration 1.7.

Illustration 1.7 Mounting Pressure Tubes

NOTICE

Put a tube connection on all pressure transmitter taps to minimize the amount of dirt entering the unit. The minimum tube

length is 80 mm (3.1 in). If a sensor uses the surrounding pressure level, cut the tube at a place farther than the tube relief

plate.