Atlantic Boilers MULTI-ELEC STANDARD 525 Technical Manual - Page 13

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3.5) Operation of the digital controller

Factory settings (primary heating circuit)

Flow temperature – 80degC

Maximum flow temperature setting – 95degC

Minimum flow temperature setting - 20degC

Time delay T1 – 30 seconds

Time delay T2 - 1 minute

Time delay T3 - 2 minutes

3.6) ALARM SIGNAL

On Alarm, light (7) shows and the following messages appear on (1)

< PFO > Lock-out or power cut

< HA >

High temperature lock-out

< LA >

Low temperature alarm

3.6 Information on the Control Panel

1. The Panel has a registration label

2. The wiring is capable of a maximum current of 23kA

3. Neutral panel wiring is not required

4. The Panel is protected by isolators, circuit breakers and fuses.

5. Earth wiring is essential

6. One week after commissioning, all connectors – on immersion

heaters and incoming electrical supplies – need to be checked.

This should be repeated annually.

7. Manufacturing tests include heat output and control circuitry

8. The boilers should not be installed or operated in corrosive,

explosive or humid atmosphere

9. Adequate natural ventilation is required. 550mm2 x kW free

area at high and low level is recommended

digital controller has numbers or message, touch settings

+ – touch raise settings, – touch lower settings