AR83.70-W-1177A | Check emission level, adjust if necessary | 15.4.96 |
MODEL 375.1 with BODY 375.830 with CODE (H61) Webasto Air Top 2000 hot air auxiliary heater
MODEL 375.3 with BODY 375.810 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 375.4 with BODY 375.840 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 375.3 with BODY 375.820 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODEL 375.4 with BODY 375.860 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODELS 950, 952, 953, 954 with BODY 942.899 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODELS 950, 952, 953, 954 with BODY 940.899 with CODE (H61) "Webasto" Air Top 2000 hot air auxiliary heater
MODELS 970, 972, 974, 975, 976 with BODY 972.899 with CODE (H61) Webasto Air Top 2000 hot air auxiliary heater
MODEL 944 with BODY 944.899 with CODE (H61) Webasto Air Top 2000 hot air auxiliary heater
W83.70-0661-06
1 Control IC
2 Potentiometer
3 Cover
Danger! | Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit | Do not operate stationary heater, auxiliary heater or engine with heater booster in closed areas or when refueling. Allow heater unit to cool down after operation and wear protective gloves. | |
1 | Switch heater unit on | Allow heater to run for approx. 5 minutes until it reaches operating temperature under full-load operation. | |
2 | Measure emission level | ||
| |||
3 | Check intake and exhaust pipe as well as hot-air inlet and hot-air outlet for free passage, remove any insulating material | Perform step if the emission level is to be regulated. | |
4 | Remove cover (3) from the heater's upper segment | ||
5 | Set emission level on potentiometer (2) on the controller board (1) | Turn right: CO2 content is reduced Turn left: CO2 content increases If the setting range on the potentiometer is too small: Switch quickly through the setting range twice within a period of 5 seconds going from lock to lock and wait for the remaining time period to expire in the central position. After this the potentiometer's full setting range - shifted towards the first lock moved to - is available again. | |
6 | Switch heater unit off | ||
7 | Fit cover (3) and fasten in place |
Test values for heater unit
Number | Designation | Model 375.1 with body 375.830 | Model 375.3 with body 375.810 | Model 375.3 with body 375.820 | Model 375.4 with body 375.840 | |
BE83.70-N-1001-03A | Exhaust CO2 content | % by volume | 9.5...12 | 9.5...12 | 9.5...12 | 9.5...12 |
Test values for heater unit
Number | Designation | Model 375.4 with body 375.860 | Models 950, 952, 953, 954 with body 942.899 with (code H61) "Webasto" Air Top 2000 heater unit | Model 944 with body 944.899 | Models 970972, 974, 975, 976 with body 972.899 | |
BE83.70-N-1001-03A | Exhaust CO2 content | % by volume | 9.5...12 | 9.5...12 | 9.5...12 | 9.5...12 |
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