REMKO GPM - Manual (Page 36)

36
REMKO GPM
Unit without electronic
temperature regulation
With replacement of the gas valve,
the CO
2
and, if applicable, the
offset value must be adjusted.
- Start the burner and bring it to
"high output" after switching
on the fan by holding the reset
button on the rear side of the
unit depressed for 2-3 seconds.
High output mode is shown by a
single flash of the green LED on
the front of the unit.
After approx. two minutes connect
a flue gas analytical device and
read the CO
2
value.
Compare this value with the
information in the table "Gas
settings" for the type of gas in use.
- If the value lies beyond the
indicated range, use the
CO
2
regulating screw at the
Venturi tube.
When tightening the adjusting
screw the gas flow rate is reduced
and the CO
2
value along with it
When loosening, the CO
2
value
increases.
Then set the burner to "minimum
output" by pressing the reset
button again and holding it for 2-3
seconds.
The "minimum output" mode is
displayed by two quick flashes of
the green LED.
- Wait until the minimum output at
the burner has stabilised and check
that the CO
2
value is the same or
slightly below the CO
2
value of
the high flow rate (up to -0.3%).
With deviating values, use the
offset screw.
To change the values, unscrew the
metal plug and use the regulating
screw:
When loosening, the CO
2
value
decreases.
When tightening, it increases.
After any changes to the offset
regulation, the CO
2
value at high
output must be checked again
through the steps indicated above.
After these steps, set the burner to
"Normal" operation by pressing
the reset button again and holding
it for 2-3 seconds.
This mode is displayed through
the continuous illumination of the
green LED.
This also happens if the power
supply of the unit is switched off
and then on again.
Unit with electronic temperature
regulation
With replacement of the gas valve,
the CO
2
and, if applicable, the
offset value must be adjusted.
- Adjust the regulation parameter
of the sensor NTC1 ("REG SAN"
on the electronic temperature
regulation) higher than the value
measured by the sensor NTC1
("FLOW VL" on the electronic
temperature regulation).
- Switch on the burner. After
approximately two minutes after
starting, it goes to its highest
flow rate.
Connect a flue gas analytical
device and read the CO
2
value.
Compare this value with the "Gas
settings" (page 32) for the type of
gas in use.
- If the value lies beyond
the indicated range, use the
CO
2
regulating screw at the Venturi
tube.
When tightening, the gas flow
rate is reduced and the CO
2
value
along with it.
When loosening, the CO
2
value
increases.
Then, at minimum output, set the
burner to a value that lies below
the measured temperature by
adjusting the REG SAN value.
- Wait until the minimum output at
the burner has stabilised and check
that the CO
2
value is the same or
slightly below the CO
2
value of
the high flow rate (up to -0.3%).
With deviating values, use the
offset screw.
To change the values, unscrew the
metal plug and use the regulating
screw:
When loosening, the CO
2
value
decreases.
When tightening, it increases.
After any changes to the
offset regulation, the CO
2
value
at high output must be checked
again through the steps indicated
above.
Replacement of the gas valve and CO
2
and offset regulation
If the unit is not set to
"Normal" operation, the
control PCB automatically
resets the unit after 20
minutes.
NOTE