ROBUA G Series, Инструкция по установке, эксплуатации и обслуживанию

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First start-up
Installation, use and maintenance manual – G gas unit heater
27
5
instead of the provided control device.
▶
Appliance defects or faults caused during transport or
installation.
▶
Gas smell.
▶
Non-compliant mains gas pressure.
▶
Non-compliant flue gas exhaust.
▶
All situations that may involve operation abnormali-
ties or are potentially hazardous.
5.1.3
Non-compliant system and corrective
actions
Should the TAC find any non conformities, the user/install-
er is bound to perform any corrective procedures required
by the TAC.
After performing the remedial actions (the installer's re-
sponsibility), if the TAC deems that safety and conformity
conditions are in place, first start-up may be effected.
5.2
COMBUSTION PARAMETERS CHECK
Paragraph reserved exclusively to TACs.
The gas unit heater is supplied with the gas valve
already calibrated with respect to the fuel indi-
cated on the sticker next to the gas connection.
Therefore, during the commissioning, only the CO
2
value must be checked and, only if the check is not
successful, or after a gas changeover, the complete
check procedure must be carried out.
The CO
2
value should be checked with the thermo-
formed door closed, while the gas valve should be
adjusted with the thermoformed door open.
If a differential pressure gauge is used, it is neces-
sary to connect the pressure intake A of the gas
valve to the + (positive) port of the pressure gauge.
Figure 5.1 p. 27
1. If the appliance is running, switch it off with the appli-
cable control system.
2. Connect a pressure gauge to offset pressure fitting (A),
after having first removed or loosed the sealing screw.
3. Turn the appliance on to level 3 (maximum power) and
wait for the time necessary to complete the flame sta-
bilisation phase (about 2 minutes).
4.
Use the key on the chronothermostat to set the
minimum capacity/flow rate (level 1).
5.
Using the IP key, enter the INFO menu and with the OK
key select the RPM string and check that the blower
speed at level 1 (minimum output) corresponds to the
value indicated in Table 5.1
p. 27.
6.
Turn the offset adjustment screw until the nominal
offset pressure value shown in the following Tables is
obtained, with a tolerance of ±1 Pa.
7.
Ensure the CO
2
value is between values indicated in
column "Minimal heat input" of the following Tables,
depending on the model and the gas type used.
Otherwise set CO
2
percentage reading by acting on
the offset adjustment screw.
Check the burner, which must not have reddened
areas.
8.
Disconnect the pressure gauge and tighten the seal-
ing screw of the pressure intake (A).
9.
Close the door and use the remote control to set level
3 (maximum power/flow rate).
10.
Wait for the time necessary to complete the flame sta-
bilisation phase (at least 5 minutes).
11.
Ensure the CO
2
value is between values indicated in
column "Nominal heat input" of the following Tables,
depending on the model and the gas type used.
If the check is successful:
12.
Stop manual forcing of the power level.
If the check is not successful:
13.
Repeat steps 3 to 7 (excluding step 6) to reactivate the
minimum power operation; check again and, if neces-
sary, correct the CO
2
value in such conditions by actu-
ating the offset adjustment screw.
14.
Repeat step 12 to complete the procedure.
Check that the static and dynamic supply gas
pressure values, with the gas unit heater running
at maximum power, correspond to what is shown
in Table 3.1
p. 17 (with low supply gas pressure
values the CO
2
value will also be at minimum
values).
Table 5.1 Blower speed
Model
Blower speed at level 1
minimum power (rpm)
Blower speed at level 3
maximum power (rpm)
G30 1900 3500 ± 150
G45 1700 4850 ± 150
G60 2000 5650 ± 150
G100 2050 6000 ± 150
Figure 5.1
Gas valve
A Offset pressure intake
B
Gas mains pressure intake
C Offset adjustment screw
A
C
B