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Telaire Ventostat™ 8000 Series

Troubleshooting

See Table 3 below for symptoms and remedies.

Table 3:  Symptoms and Remedies

Symptom

Remedy

LCD Display is blank 

after the 2 minute 
warmup period (8002 
and 8008 models)

Note:

Follow the Remedy Steps in 
numerical order.

1.

Remove the sensor from the wiring 
plate and check the voltage on pins 1 
and 2 of the 2-pin terminal block. The 
voltage should be: 18-30 VAC RMS or 

18 - 42 VDC

2.

Ensure that the sensor pins that connect 
to the 2-pin terminal block are not 
broken, bent, or damaged.

3.

If the LCD display is still blank after 

replacing the sensor on the mounting 
plate, call 

GE Telaire

 or your 

distributor/dealer for a return 

authorization number.

Green light is not 
illuminated (8001 
and 8008 models) 

after the two minute 
warmup period.

1.

Remove the sensor from the wiring 
plate and check the voltage on pins 1 
and 2 of the 2-pin terminal block. The 

voltage should be: 18-30 VAC RMS or 
18 - 42 VDC.

2.

Ensure that the two pins on the sensor 
that connect to the 2-pin terminal block 

are not broken, bent, or damaged.

3.

If the green light is still not illuminated 
after replacing the sensor on the 
mounting plate, try verifying the sensor 

operation using the 

UIP

 8000 computer 

interface or checking the output signal 
on the building automation system.

4.

If there is no output signal, call 

GE 

Telaire

 or your distributor/dealer for a 

return authorization number

.

Suspect the sensor is 

out of calibration.

1.

Compare the sensor reading to a 

GE 

Telaire

 7001 hand-held CO

2

 monitor.

2.

Take another sensor from the building 
and replace the suspect sensor to see if 

the readings are similar.

3.

Connect the sensor outdoors (if 
possible). The readings should be 
between 

350 and 450 ppm

.

4.

Connect the sensor to nitrogen gas from 

a Model 2075 calibration kit. The 
reading should be close to zero.

5.

If the sensor still proves to be out of 
calibration, calibrate the sensor 

according to the instructions included in 
your calibration kit, or call for a Return 
Authorization (RA) number before 

returning the sensor to

 GE Telaire 

for 

factory calibration.

Relay does not 
actuate at the proper 

setpoint.

1.

Using the LCD menu or the 

UIP

 

8000

 

computer interface, verify that the relay 

setpoint is correct.

2.

Return the sensor to normal operating 
mode, and breathe into the sensor to 
raise the 

ppm

 value above the relay 

setpoint.

3.

If the relay does not actuate at the 
proper setpoint, call 

GE Telaire

 or your 

distributor/dealer for a Return 

Authorization (RA) number.

Table 3:  Symptoms and Remedies (cont.)

Symptom

Remedy

Содержание Telaire Ventostat 8001

Страница 1: ...controller on the base by aligning the top clips and then securing to the bottom clips as shown in Figure 1 View B above A snap sound will indicate that the sensor is secure The sensor will now have power A 2 minute warm up will take place After 2 minutes the sensor will stabilize and display the Normal Mode current CO2 readings 5 At this point one of nine preset programs or one custom channel can...

Страница 2: ...ure is weatherproof for measuring outside air CO2 con centrations It also includes heat stabilizers Model 1505 Harsh Environment Enclosure For extreme envi ronments where the sensor might be subjected to condensation or water spray such as those found in greenhouses or breweries NEMA 3R rated Figure 3 Accessory Enclosures Typical Wiring Diagrams The typical wiring diagrams appear in Figure 4 throu...

Страница 3: ...ntrations drop to outside levels while the building is unoccupied Generally a building must be regularly unoccupied for 4 hours or more for this self calibration system to operate properly Under these conditions the ABC Logic feature should maintain sensor calibration over the lifetime of the sensor The ABC Logic feature should be turned OFF where a building is continuously occupied 24 hours per d...

Страница 4: ...o initially introduce more ventilation to the space as concentrations are at the lower level of the control range The exponential output is particu larly useful for areas of potential high occupancy and high air volume where significant time may be required for CO2 levels to build up Potential applications include arenas gyms auditoriums and large con ference areas Examples of both types of output...

Страница 5: ... Settings The non standard custom settings can be changed at any time after the sensor is powered up The seven settings variables are PPM Range Scale proportional or exponential Output V or mA Output Range V Output Range mA Relay Setpoint Relay Hysteresis The Altitude and ABC Logic features can be changed without entering into the Non Standard NONSTD menu 1 After 2 minute warmup period press CLEAR...

Страница 6: ...ying the sensor operation using the UIP 8000 computer interface or checking the output signal on the building automation system 4 If there is no output signal call GE Telaire or your distributor dealer for a return authorization number Suspect the sensor is out of calibration 1 Compare the sensor reading to a GE Telaire 7001 hand held CO2 monitor 2 Take another sensor from the building and replace...

Страница 7: ...lly Closed wire either way gold bifurcated 2A max 24VAC Adjustable setpoint factory set at 1000 ppm 50 ppm hysteresis Wiring 18 28 AWG stranded copper wire only 2 wires each for power analog output relay Digital I O RS 232 interface for use with optional PC software and cable in UIP kit 2072 Warranty Repairs GE Sensing will repair Telaire product that fails to meet the terms provided for in the Re...

Страница 8: ......

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