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CVHH-SVX001G-EN
panel to control the condenser pump.
Condenser Water Proof of Flow
When this circuit is installed properly and the
condenser pump is running and providing the required
minimum condenser water flow, this circuit will prove
the condenser water flow for the chiller controls. Proof
of condenser water flow is also required for the start
sequence will be allowed to proceed and a loss of
condenser water flow during chiller operation will
result in a chiller shut-down.
Refer to as-built schematics on the inside of the control
panel for field wiring. This is a dry binary input;
normally-open, closure for flow. Apply no external
power.
1. With factory-installed ifm efector
®
flow-sensing
devices, a secondary field-provided flow-sensing
device is optional. When a secondary flow-sensing
device is used, remove the factory jumper, and
install its contacts between 1X1-5 to 1K27-4; this
places the secondary flow sensing device in series
with the ifm efector
®
flow-sensing device.
2. For field-provided primary proof of flow devices,
connect the primary proof of flow device between
terminals 1X1-6 to 1K16-J2-2. The secondary field
provided flow sensing device is optional; however,
when it is present, it must be field-wired in series
with the primary proof of flow device.
Sensor Circuits
All sensors are factory-installed except the optional
outdoor air temperature sensor (refer to the following
figure for sensor locations). This sensor is required for
the outdoor air temperature type of chilled water reset.
Use the following guidelines to locate and mount the
outdoor air temperature sensor. Mount the sensor
probe where needed; however, mount the sensor
module in the control panel.
Содержание CVHH CenTraVac
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