Meridian Boiler

Meridian Boiler
MERIDIAN INSTRUCTIONS
Control Panel
1
2
3
4
5
1.3
1.4
1.2
1.1
1.5
1
Function mode selector
2
Domestic hot water temperature (do not touch)
3
Heating temperature (do not touch)
4
Display screen
5
System pressure
1.1
Off
1.2
Heating and domestic hot water mode
1.3
Heating only mode
1.4
Reset (hold 2 seconds, turn back to 1.2 or 1.3 as applicable)
1.5
Serving (do not touch)
MERIDIAN INSTRUCTIONS
Display Screen
During normal operation the digits in 4.1 indicate the flow temperature value.
4.1
Temperature reading /Fault Code
4.2
Used only for “Service”
4.3
“Reset” request
4.4
Selector on “Summer”
4.5
Heating request
4.6
Selector switch on “Winter”
4.77
Sanitary hot water request (if tank present)
4.8
Request for intervention/ resetting
4.9
Activation of service function (for support service only)
4.10
Activation of anti– freeze function
4.11
Burner start up
MERIDIAN INSTRUCTIONS
Fault Finding
Code
Fault
Type of Block
F1
No start-up or no flame detected
Manual resetting is required
F2
Safety thermostat intervenes
Manual resetting is required
F5
Faulty supply sensor
It automatically resets if fault disappears
F7
Fault on flue gas sensor resistance
Fixed with automatic reset - signalling for
24 hours
F8
Faulty external probe
It automatically resets if fault disappears
F11
Hydraulic pressure <0,5 bar into
heat exchanger
It automatically resets if fault disappears
F12
Faulty tank probe (sonda bollitore)
It automatically resets if fault disappears
F16
Faulty fan
It automatically resets if fault disappears
F27
Hydraulic pressure <0,5 bar into
heat exchanger
It automatically resets if fault disappears
When error codes F1 and F2 are displayed the boiler can be reset by turning the function
mode selector (1) to the reset position (1.4) for two seconds and then returned to the relevant
heating position, either 1.2 for heating and hot water or 1.3 for heating only.
If the block persists, contact Hicks Hydronics.
A block with the F10 code can be caused by lack of water in the system or by blocked or
faulty circulator. In the first case, check that the system load pressure on the boiler pressure
gauge (5) is approximately 1÷1.3 bar, in the second case, call Hicks Hydronics.
For all remaining block codes that do not reset even after the switching off the boiler and then
switching it on again, contact Hicks Hydronics.
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