DC INVERTER MULTI VRF INSTALLATION
161
WARNING: The length of connection pipe must be 1m≤L≤1. 5m. The electronic
expansion valve sub-assembly must be connected to the indoor and outdoor unit in a
direction as marked. If connected in reverse direction, severe error will be caused to the
unit.
（2） Pipe connection: Tighten the nuts with your hands correctly. Then, use another spanner to
hold the pipe joint on machine side and use torque wrench to tighten securely.
（3） Cable connection of electronic expansion valve sub-assembly
① To avoid loosening and sagging down, please use strap (small) to fix the cable of electronic
expansion valve sub-assembly onto the pipe or other objects.
② When connecting the cable of electronic expansion valve sub-assembly, please take care to
prevent the cable from contact with the hot or humid objects.
（4） Final treatment: The section where the pipe is connected must be wrapped for thermal
insulation.
WARNING!
Please ensure the pipe is fully covered by sponge and not exposed in air. Condensing
water will be generated on the pipe if the thermal insulation is poor.
Rotate the spanner
Pipe on indoor unit side
Hold the spanner
Connect the mainboard
of indoor unit
Fix with strap
To Indoor
Unit
To Outdoor
Unit
Vertically
upward
To Indoor
Unit
To Outdoor
Unit
Vertically
upward
Thermal insulation sponge
Indoor unit
To Next Page
Loading...
Need help?
General
