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T e c h n i c a l N o t e b o o k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T e c h n i c a l T r a i n i n g
Code Parameter
Units Description
Factory
setting
Possible to
change?
d.11
Auxiliary heating pump status
(controlled by the option card)
0 = the pump is stopped
1 = The pump is requested
-
read only
d.13 Unused
d.16
Heating request by an ON/OFF
thermostat (connected to RT terminals
of connector X17)
-
0 = contact open (no request)
1 = contact closed (heating request in progress)
NB : if the contact is shunted, the display is always 1.
-
read only
d.17
Regulation type (outlet or return)
°C
0 = outlet
1 = return
-
yes
Regulation on the return is useful for low inertia heated floor installations (without buffer tank): this type of regulation avoids burner shut-off when the
temperature setting is reached too quickly.
When regulation on the return is activated, the burner control is modified: The burner is forced to minimum power for 5 minutes then power regulation
is authorised.
d.18 Pump operation
-
Operating mode:
0 = With burner ; the pump runs when the burner lights.
1 = Continuous with RT : the pump runs when the Roomstat
is in demand.
2 = permanent in winter : the pump run as long as boiler is
on winter mode.
1
yes
d.19 Pump speed
(Not adjustable on Gepard)
-
Operating mode:
0 = Burner lit; automatic speed in heating, max. in hot water,
min. when the burner is off.
1 = Min. speed in heating, max. in hot water
2 = Automatic speed in heating, max. in hot water
3 = Max. speed in heating and hot water
2
yes
Operation of automatic speed:
At each burner start in heating, the pump runs at reduced speed for at least 30 seconds. If the outlet/return temperature difference reaches 20K, the
pump goes to max. speed until the burner shuts down (even if the temperature difference reduces). The same cycle occurs at the next ignition.
d.20
Domestic Hot water max. temperature
setting
°C
The maximum recommended domestic hot water
temperature is 60°C. Select a value between 50°C and
60°C.
60
yes
Note: The domestic Hot water temperature setting is adjustable by the user between 38 and 60°C. Factory setting = 55°C.
d.21
Warmstart function : this parameter
indicate if the function is
enabled and
allowed
.
-
1 = function
enabled and allowed
0 = function not
disabled or not allowed
-
read only
d.22
Hot water request by thermostat, NTC or
flow detector.
-
0: no dhw demand
1: dhw demand ( tap, tank ntc or tank switch)
-
read only
d.23 Heating demand
-
0 = no heating demand
1 = heating demand in progress
-
read only
d.24
air pressure switch (for SE models)
ON: closed (position when fan run)
OFF: open (stand by position)
-
read only
d.25
Tank reheat request activated either by
the interface (in hot water mode) or an e
bus thermostat.
-
The product configuration either does or does not allow tank
reheating (Exacontrol 2009 with hot water programming):
0 = no authorisation for tank reheating
1 = authorisation for tank reheating
-
read only
The 2 following menus are displayed if an option card (not supplied) is installed on the appliance.
d.27
Relay 1 function
(This is one of the 2 relays fitted in the
option card)
-
Attributing a function to relay 1 of the option card:
1 = not applicable to this product
2 = additionnal heating pump
4 = kitchen hood
5 = external gas valve
6 = external error message
1
yes
The values with a green background are only accessible from the After-Sales menu (access code = 35)