Controls – Schreiber Chillers 15MEDAC email User Manual
Page 11
overhead pipes and overflowing the reservoir. A water supply and hose should be
plumbed to the chiller for filling.
Each pump has a shut off valve between the tank and pump suction, and a pressure
relief bypass valve, set at 45psig, installed on the discharge and return to manage the
flow. There is a common discharge pressure gauge for pumps. A strainer and cleanout
valve is installed for refrigeration system.
CONTROLS
The chiller enclosure is a single enclosure with two compartments. The upper section
houses the controller and pilot lamps. The lower section contains the main disconnect
(non-fused) and all of the high voltage components. The upper section can be opened
for an operator to check the control panel. The lower door is interlocked to disconnect.
The main controller has a built in 4 x20 LCD display. The remote terminal can be wall
mounted indoor. It is connected to the controller via a 6-conductor data cable. The
cable has phone jack style connections and150’ of the cable is provided. The remote
terminal receives its power from the main controller; therefore, no additional power
supply is required
The controller has one digital input available for remote on/off. There are option BAS
gateways for TCP/IP, MODBUS, BAC-Net, and LON-works.