Robur K18 Hybrigas, Installation, Use And Maintenance Manual, Page: 46 / 60

Normal operation
46
6
6 NORMAL OPERATION
This section is for the end user.
6.1 WARNINGS
General warnings
Prior to using the appliance carefully read the warnings
in Chapter III.1 p. 4, providing important information
on regulations and on safety.
First start-up by TAC
First start-up may exclusively be carried out by a Robur
TAC (Chapter 5
p. 38).
Never power the appliance off while it is running
NEVER power the appliance off while it is running (ex-
cept in the event of danger, Chapter III.1 p. 4), since
the appliance or system might be damaged.
6.2 SWITCH ON AND OFF
Routine switching on/off
The appliance may be exclusively switched on/off using
proper control device (OQLT019, OCDS007 or external
request).
Do not Switch On/Off with the power supply switch
Do not switch the appliance on/off with the power sup-
ply switch. This may be harmful and dangerous for the
appliance and for the system.
Inspections before switching on
Before switching on the appliance, ensue that:
▶
gas cock open;
▶
appliance electrical power supply (main switch GS ON, Fig-
ure 4.2 p. 35);
▶
OQLT019 or OCDS007 power supply (if present);
▶
K18 Hybrigas on, that is the boiler module display on (detail
G Figure 1.3 p. 10) and heat pump module display on (de-
tail I Figure 1.3
p. 10);
▶
water circuit ready and filled.
How to switch on/off
▶
If the appliance is controlled by the OQLT019 controller (sys-
tem 1, see Paragraph 1.8
p. 21), refer to the relevant man-
ual.
▶
Se l'apparecchio è comandato dal cronotermostato
OCDS007 o da un consenso esterno (es. termostato, orolo-
gio, pulsante, ... con contatto pulito NA), (sistemi (2) e (3) ve-
di Paragrafo 1.8
p. 21), l'apparecchio viene acceso/spento
dalle posizioni ON/OFF del dispositivo di controllo esterno.
After switching on with the control, in normal operating condi-
tions, the appliance starts/stops automatically according to the
user's thermal needs, supplying hot water at the programmed
temperature.
Although the external request is in the "ON" position, this
does not mean the appliance will start immediately, but
it will only start when there are actual service demands.
6.3
MESSAGES ON THE HEAT PUMP DISPLAY
4 digit display
The GHP10 board of the appliance (Paragraph 1.6 p. 20) is
equipped with a 4-digit display (detail A Figure 1.14
p. 20), vis-
ible through the sight glass (reference I Figure 1.3
p. 10).
▶
When the appliance is powered, all the LEDs switch on for 3
sec, then the central hyphens of the four digits are switched
on, and lastly the GHP10 board name is displayed in two sub-
sequent stages (GHP during the first stage and 10 during the
second).
▶
After 5 sec, the appliance is ready to operate.
Signals in normal operation
▶
During normal operation, water temperature values alter-
nate on the display: output,input and the difference be-
tween the two.
Events reporting
In case one or more events occur, the display shows up the three
event types, indicated by first green character:
▶
“I” for information;
▶
“u” for warning;
▶
“E” for errors.
The other three red digits represent a numeric event code.
Info events are shown steadily while warnings and errors blink.
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.
For details about information, errors and warnings codes see Ta-
bles 8.1
p. 54 and 8.2 p. 54.
Menu navigation
Once the menu list has been accessed (see Paragraph
6.4
p. 46), the display shows:
▶
first green digit on the left: indicates menu number (eg. "0.",
"1.", "2.", ... "8.");
▶
the last three red digits on the right, indicate a parameter
code or value, among those included in the selected menu
(e.g. "__6" "_20", "161").
(e.g. menu+parameter "1.__6", "2._20", "3.161").
6.4
ON-BOARD ELECTRONIC CONTROLS
– MENUS AND PARAMETERS OF THE
GHP10 BOARD
Selection keys
One of the following actions may be done with the GHP10 board
selection keys (references B, C and D in Figure1.14
p. 20):
▶
Enter the menu list (by pressing the key the first time).
▶
Scroll the menu list, or a series of parameters in a menu (by
pressing keys
, ).