Raypak XPAK 120, Installation & Operating Instructions Manual

Page: 45 / 68

45
Fig. 46 Fig. 47
DHW mode Heating mode
Fig. 48 Fig. 49
Fig. 50
Fig. 51 Fig. 52
Fig. 53 Fig. 54
Fig. 55
Fig. 56
Fig. 57
Closed
position
B green indicator LED
boiler status
Open
position
D red indicator LED fault
For AL41 faults
If the pressure on the water gauge located on the control panel is
less than 7 psi (0.5 bar), proceed as follows:
- Turn the function selector to
(Fig. 54)
- Fill the system until the pressure indicated on the water gauge
lies between 14-21 psi (1-1.5 bar) (Fig. 45 pos. A)
- Move the function selector to the desired position.
In case of frequent pressure drops, call your local Service
Technician.
For alarm AL91
The boiler has an internal self diagnostic system that can advise
if it is necessary to clean the main heat exchanger (alarm code
AL91) after 2500 hours of working in particular conditions. After
the heat exchanger cleaning (using the cleaning kit – Raypak Part
No. 013142F) it is necessary to reset the hour meter with the
following instructions:
Switch off the electric supply to the boiler
Remove the knob of the main selector
Switch on the boiler while pressing the CO button for at least 4
seconds (Fig. 59). To check if the counter has been reset, switch
OFF and ON the boiler main supply, after the lighting of all the
segments of the display, the value of the counter will appear.
NOTICE
The reset counter procedure must be carry on after every heat
exchanger deep cleaning and in any case after heat exchanger
replacement.
NOTICE
To check the hours of the counter, switch off the main supply, than
switch on. After the lighting of all the elements of the display, a
number will appear: multiply for 100 to get the hours (18 = 1800
hours, 01 = 100 hours)
Code
AL10
AL20
AL21
AL29
AL60
AL71
AL73
AL28
AL26
AL79
AL41
AL40
AL34
AL52
AL55
AL91
Description of alarm
Ignition attempts finished (no flame/condensate present)
Limit thermostat fault, blocked flue switch, flue thermostat
Low temperature thermostat/condensate pump safety
device fault
Flue sensor over temperature lock out
Water tank probe fault
Delivery probe fault (open/short circuit)
Return probe fault (open/short circuit)
Return/delivery probe differential fault
Return over temperature
Delivery over temperature / return-delivery probe
differential fault
System water pressure low
System water pressure low (after 10 minutes)
Fan tacho fault
Generic electronic fault
No boiler mode configuration fault (corresponding jumper
absent)
The main heat exchanger need to be cleaned –
call the Raypak technical service
Status
Block
Block
Block
Block
Block
Stop
Stop
Block
Block
Block
Stop
Block
Block
Block
Block
Advice