Johnson Controls YORK YVAM 0350, Operation & Maintenance Manual

Page: 144 / 162

Figure 56: Control panel temperature control device locations
Callout Component
A Fans
B Control panel cooler thermostat control
C Control panel heater thermostat control
Figure 57: Control panel heater thermostat options
Testing the OptiView control panel cooler
About this task:
The OptiView panel has a cooler in it that removes heat from the panel to prevent overheating.
When the chiller power is energized, the control panel cooler operates the onboard cooling fans
regardless of the operating status of the cooler. To test that the cooler operates correctly, you
can adjust the control panel cooler thermostat knob. The value can be set to lower the required
temperature for the commissioning test.
1. To operate the cooler, set the value of the control panel cooler thermostat knob to a
temperature lower than ambient. See Figure 56.
2. When the cooler is running, check for cool air flowing from the top of the cooler unit.
3. After confirming operation, set the thermostat back to 90°F (32.2°C).
YVAM Control Center 144