Vibration Reduction; Water System - Gree D Serie Manual Del Usuario

D Series Modular Air-cooled Scroll Chillers Owner's Manual

4.5 Vibration Reduction

The unit shall be securely attached to the foundation through the mounting hole by following
the steps below.
(1) Be sure the planeness of the concrete foundation is within ±3mm and the foundation shall
be covered by a rubber pad.
(2) Lift the unit until to the height where it is available to install the spring shock absorber.
(3) Remove screws fixing the spring shock absorber.
(4) Place the unit on the spring shock absorber and align the bolt holes of the spring shock
absorber with the mounting holes on the base of the unit.
(5) Tighten screws removed in step 2.
(6) Adjust the height of the spring shock absorber and make sure the deflection is equal all
round the spring shock absorber.
(7) Tighten the locking screws.

4.6 Water System

Considerations stated below shall be taken carfelly for the water system.
(1) Each water inlet and outlet should be labeled properly to avoid misconnection.
(2) A flexible connector should be used at the chilled water outlet to reduce vibration
transmission.
(3) A manometer, a thermometer and a gate valve shall be installed at the chilled water inlet /
outlet. Moreover, a drain valve shall be installed at the outlet and an air release valve shall
be installed at the inlet. At the highest point of the water system, another release valve
shall be installed, while at the lowest point of the water system, another drain valve shall be
installed to facilitate drainage.
(4) The water inlet/outlet pipe should be tightly insulated to reduce heat loss and dewing.
When pipes are exposed under 0℃ , a electric heater shall be installed.
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