NuAire NU-5800, Operation And Maintenance Manual

Page: 29 / 48

OM0211 Page 29 of 48
Rev 3 March 2013
Temperature Control Diagnostics
1. Safety Relay
This function shows the current state of the safety relay. LCD display will show “On” or “Off”
corresponding to the relay condition. On for closed or set or yes.
2. Chamber Temperature Sensor
This function shows on LCD the current values, calibrated (displayed) and not calibrated of the
temperature sensor controlling the chamber temperature.
3. Safety Temperature Sensor
This function shows on LCD the current values, calibrated and not calibrated of the Safety
temperature sensor located in the chamber.
4. Chamber Heater Triac Control (0%, 50%, and 100%)
This function allows the jacket heater to be turned on at different percentages 0, 50,100)
5. Door Heater
This function shows on LCD the current state of the door heater. This function also allows the door
heater to be turned on at different percentages (0, 50, and 100 percent). The LCD display will show
phase firing percentage chosen default is 0%.
6. Perimeter Heater
This function shows the current state of the perimeter heater. This function also allows the
perimeter heater to be turned on at different percentages (0, 50, and 100 percent). The LCD display
will indicate percentage of phase firing chosen default is 0%.
CO2 Control Diagnostics
1. CO2 Sensor
This function shows the current CO2 sensor reading.
The value comes in as a ppm number which can then be easily displayed as a percentage number
2. CO
2
Inject Valve
This function shows on LCD the current state of the CO2 inject valve. LCD will show “ON” or “OFF”
corresponding to the valve condition. On for open or set or yes.
3. CO2 Sensor Bay Heater Triac Condition
This function shows on LCD the current state of the CO
2
Heater triac. LCD will show 0, 50, and 100
percent corresponding to the relay position. The triac can be toggled to each percent of phase firing
manually.
4. CO2 Sensor Bay Temperature Sensor
This sensor shows the sensor bay temperature in degrees C
5. Air inject Solenoid
This function shows on LCD the current state of the Air Inject Solenoid.
LCD will show “ON” or “OFF” corresponding to the solenoid position.
Default is off-solenoid activates when the button is touched
6. Blocking Solenoid
This function shows on LCD the current state of the Blocking Solenoid.
Default is off – solenoid activates when the button is touched.
General Control Diagnostics
1. Power Supply Reg12 VDC
This function will display on the LCD screen the current value (+12.xx) of the reg12 VDC
power supply.
2. Power Supply Reg5 VDC
This function will display on LCD screen the current value (+5.00) of the reg5 VDC power
supply.
3. Chamber Air Inject Solenoid
This function shows on LCD the current state of the Air Inject Solenoid. LCD will show “ON” or “OFF”
corresponding to the solenoid position. Default is off-solenoid activates when the button is touched
4. Remote Alarm Relay
This function shows on LCD the current state of the remote alarm relay. The LCD display will show
“ON” or “OFF” corresponding to the relay condition and its Normally Open (NO0 pair of contacts
5. Air Pump Triac
This function shows on LCD the current state of the Air Pump Triac. LCD will show “ON” or “OFF”
corresponding to the relay position. The triac can be manually turned On and Off.