Webastoto HL 90 Service Manual download pdf (Page 17)

HL 90

6 Functional Checkouts

601

6 Functional Checkouts

6.1 General

This section describes the tests and adjustments on

the heater in installed and removed condition to prove its

serviceability.

WARNING

The heater must not be operated in closed areas like

garages or workshops not provided with exhaust

ventilation facilities.

6.2 Adjustments

6.2.1 Adjustment of CO

Contents

The HL90 heater does not require a CO

adjustment.

6.3 Components Testing

CAUTION

For individual components checks the electrical

connections on the control unit must be disconnected.

6.3.1 Temperature Limiter Resistance Check

With the reset pin pressed check temperature limiter for

electrical continuity.

6.3.2 Flame Sensor Resistance Check

The check is to be performed with an ohmmeter.

NOTE

The resistance is to be checked alternately on the

connector (reversed polarity).

No light for flame sensor (photo transistor)

• resistance 5 kΩ

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 39 40

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Webastoto HL 90 Service Manual Page 17