PB Heat DE User Manual download pdf (Page 30)

A. SHUT-DOWN CAUSED BY PILOT

OUTAGE, PRESSURE SWITCH OR

FLAME ROLL-OUT SAFETY

SHUT-OFF SWITCH

In the event of a shut-down caused by a pilot outage,

action of the pressure switch or flame roll-out safety

shut-off switch effecting a shut-down of the main

burners:

a. Refer to the Operating Instructions in Figure 7.3 to

properly turn off the gas to the boiler.

b. Turn off all electric power to the boiler.

c. Call a qualified heating service organization or local

gas company and have the cause of the shut-down

investigated and corrected.

d. Refer to Operating Instructions to

re-start boiler.

B. TROUBLESHOOTING GUIDES

Use Table 8.2 to assist in determining causes and

providing corrective actions to boiler problems. Refer

also to Figure 8.2 to troubleshoot the Intermittent

Ignition System Control. These guides must be used

only by qualified service technicians. These individuals

must follow all applicable codes and regulations in repair

of any boiler problems.

C. MEASURING SUCTION PRESSURE

Refer to Table 8.1 for fan suction pressure required to

energize control circuit. Measure fan suction pressure as

shown in Figure 8.1. Note that as boiler operates,

suction pressure will decrease. Measure after 15 minutes

of boiler operation.

TROUBLESHOOTING

8. TROUBLESHOOTING

Should overheating occur or the gas supply fail to

shut off, do not turn off or disconnect the electrical

supply to the pump. This may aggravate the problem

and increase the likelihood of boiler damage. Instead,

shut off the gas supply at a location external to the

appliance.

CAUTION

Do not use this appliance if any part has been under

water. Improper or dangerous operation may result.

Immediately call a qualified service technician to

inspect the boiler and to replace any part of the

control system and any gas control which has been

under water.

WARNING

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and

dangerous operation. Verify proper operation after

servicing.

CAUTION

When servicing or replacing items that communicate

with the boiler water, be certain that:

●●

There is no pressure on the boiler.

●●

The boiler is not hot.

●●

The power is off.

When servicing the gas valve or pilot, be certain that:

●●

The gas is off.

●●

The electricity is off.

DANGER

Table 8.1: Fan Suction Pressure

DE-03

DE-04

DE-05

DE-06

Boiler Model

Suction Pressure

1.78

1.56

1.35

0.44

0.39

0.34

(In. w.c) (kPa)

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 42 43

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PB Heat DE User Manual Page 30

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