Robur K18 Hybrigas, Installation, Use And Maintenance Manual, Page: 40 / 60

First start-up
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5
Table 5.1
Gas valve setting table for K18 heat pump module
Gas
Gas network
pressure
Screw pre-adjustment Offset pressure Percentage CO
2
in fumes
Throttle Offset Minimum Minimal thermal capacity Nominal thermal capacity
Type mbar
turns turns
Pa % %
G20
See Table
3.3 p. 32
-6 ¾ -3 -10 8,50 (1) 9,00 (2)
(1) 8,3 ÷ 8,7.
(2) 8,8 ÷ 9,2.
Table 5.2
Display messages for chimney sweep function
Message Meaning Action
CS.LO / UAIt
Chimney sweep function is active at minimum capacity and the flame
is still not lit or lit at a different capacity than required.
Wait.
CS.LO / _GO_
Chimney sweep function is active at minimum capacity and the flame
is lit at the required capacity.
Run CO
2
reading (minimum capacity).
CS.HI / UAIt
Chimney sweep function is active at maximum capacity and the flame
is still not lit or lit at a different capacity than required.
Wait.
CS.HI / _GO_
Chimney sweep function is active at maximum capacity and the flame
is lit at the required capacity.
Run CO
2
reading (maximum capacity).
HI.t
The appliance has switched off because the maximum operating
temperature of the delivery and/or return water was exceeded.
Deactivate the function by pressing the key for 5 seconds and then
increase the thermal load before reactivating the function.
Err. The appliance switched off due to an anomaly (Warning or Error).
Deactivate the function by pressing the key for 5 seconds and then
intervene according to the operating codes shown on the display,
while referring to Section 8 p. 54. Once the problem is resolved,
reactivate the function.
Cod.x
(x = 0, 1, ..)
The appliance is temporarily running a special cycle that requires
specific control of the power that is not compatible with the execution
of the chimney sweep function.
In the rare event of one of these codes appearing, deactivate the func-
tion by pressing the key for 5 seconds and then contact Robur.
Figure 5.2
K18 heat pump module gas valve
A Gas mains pressure intake
B Offset pressure intake
C Offset adjustment screw
D Throttle adjustment screw
A
B
C
D
5.4 BOILER COMBUSTION PARAMETERS
CHECK
The CO
2
value should be checked with casing assem-
bled, while the gas valve should be adjusted with the
casing open.
To check and calibrate the CO
2
value of the boiler at minimum
and maximum heating power proceed as follows.
Minimum power
1. Access the P10 parameter by following the procedure de-
scribed in Paragraph 5.6
p. 44 and remain in edit mode
until the end of calibration (the maximum time before being
forced out of the edit mode is 7 minutes).
2. Activate the chimney sweep function by pressing for 7 sec-
onds the R key (detail 4 Figure 1.15 p. 21).