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LAARS 9600 CB - Installation, Operation and Maintenance Instructions User Manual

Page 16

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Page 16

LAARS Heating Systems

Figure 20. Ladder diagram.

NOTE: CB-M2-250 includes Differential Pressure Switch in series with Operating Control, Safety Limit

and Exhaust TCO.

Caution

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation.

Verify proper operation after operation servicing.

Attention

Au moment de l’entretien des commandes, étiquetez
tous les fils avant de les débrancher. Les erreurs de
câblage peuvent nuire au bon fonctionnement et être
dangereuses.

S’assurer que l’appareil fonctionne adéquatement une
fois l’entretien terminé.

h.

Clean combustion coil with a wire brush.

i.

Remove burner, inspect and clean, if necessary.

j.

Reassembly is done in reverse order.

k.

If a low water cutoff is installed, inspect it
annually.