Robur GAHP-AR S, Инструкция по установке, эксплуатации и обслуживанию

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Maintenance
Installation, use and maintenance manual – Gitié ARAY
39
7
Signals in normal operation
▶
During normal operation, water temperature values alter-
nate on the display: output, input and the difference be-
tween the two.
Signals in the event of fault
In the event of fault the display blinks indicating an operational
code (first letter on the display: "E" = error, or "U" = warning).
The display rotates after the values of the outlet water tempera-
ture, the inlet and the difference between them.
If multiple events are active, they are shown in sequence, or-
dered by increasing code number.
If warning or error events are active, the left green symbol,
shown together with water temperature data, blinks.
If it is a permanent error or warning the appliance stops.
(Table 8.1 p. 40 and Table 8.2 p. 42).
7.5 RESTARTING A LOCKED-DOWN UNIT
Fault signals on the display
In the event of locked-down appliance, an operational code
flashes on the display (first green figure on the left, letter "U" =
warning or "E" = error).
▶
To restart the appliance you must know and perform the
procedure concerning the issue signalled and identified by
the code (Paragraph 8.1
p. 40).
▶
Only act if you are familiar with the issue and with the pro-
cedure (technical expertise and professional qualifications
might be required).
▶
If you do not know the code, the problem, or the procedure,
or you do not have sufficient skills, and in any case of doubt,
contact the TAC.
Locked-down appliance
An external intervention (reset or repair) is required due to an
appliance fault or problem with the system.
▶
A reset may be enough for a temporary and provisional fault.
▶
For a fault or breakdown, alert the maintenance technician
or TAC.
Reset
There are two options for resetting a fault:
(1) If the appliance is connected to a DDC you may act through
the control device, as described in the relevant manual.
(2) You may act directly from the board as described below (if
the appliance is controlled with external enable, this is the only
option).
How to perform reset from the S61 and AY10 boards
To perform the reset directly from the board:
1. Access Menu 2 under Parameter "_20", (for AY00-120
units) or Parameter "__0" (for GAHP-AR units) to re-
set flame lock-out (Error E_12), or Parameter "_21" (for
AY00-120 units) or "__1" (for GAHP-AR units) for any
other generic reset, turning and pressing the knob;
"2._20"/"2.__21" or "2.__0"/"2.__1" must be displayed
(procedure Paragraph 5.2
p. 35).
2. Press the knob to display the flashing reset request (e.g.
"reS1" to reset flame block).
3. Press the knob again (the second time) to perform the
reset; the reset request stops flashing, then "2._XX" is dis-
played again (e.g. "2._20"). The reset operation has been
performed.
4. Exit menu 2 and the menu list, by selecting and pressing
letter "E" twice, and go back to the normal display of de-
tected temperature data.
7.6
PERIODS OF INACTIVITY
Avoid emptying the installation
Emptying the system may cause damage due to corro-
sion of the water pipes.
Deactivate the system in winter
Should you intend to stop the appliance in the winter
season, ensure at least one of the following conditions:
1. antifreeze function active (Paragraph 3.5 p. 26)
2. sufficient anti-icing glycol (Paragraph 3.6 p. 27)
Prolonged periods of inactivity
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Should you foresee to leave the appliance inactive for a long
period of time, disconnect it from the electrical and gas
mains. These operations must be performed by qualified
personnel.
How to deactivate the appliance for long periods of
time
1. Switch the appliance off (Paragraph 6.2 p. 36).
2. Only when the appliance is completely off, power it off
with the main switch/disconnector switch (Detail GS in
Figure 4.2 p. 31).
3. Close the gas valve.
4. If necessary, add water with glycol (if the appliance is
disconnected from the power and gas mains, the active
anti-icing protection is missing, Paragraph 3.5 p. 26).
How to reactivate the appliance after long periods of
inactivity
Before reactivating the appliance, the operator/mainte-
nance technician of the system must first of all:
„
Check whether any maintenance operations are re-
quired (contact the TAC; see Paragraphs 7.2 p. 37 and
7.3 p. 38).
„
Check content and quality of the water in the system, and
if necessary top it up (Paragraphs 3.8
p. 28, 3.7 p. 27
and 3.6 p. 27).
„
Ensure the flue gas exhaust duct is not obstructed, and
that the condensate drain is clean.
After completing the above checks:
1. Open the gas valve and ensure there are no leaks; should
gas smell be noticed, close the gas valve again, do not
switch any electrical devices on and request intervention
by qualified personnel.
2. Power on with the main power supply switch (GS, Figure
4.2
p. 31).
3. Switch on the appliance by means of the provided
control device (DDC or external request, Paragraph
4.4 p. 31).