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Page 40 / 146 00BNO9061-J
VARMAX - Installation, Use and Maintenance
5. COMMISSIONING
5.1. Unlocking the boiler
!
WARNING:
During commissioning, the unlocking of the boiler can only be achieved
if the hydraulic system is compliant with the recommendations
mentioned in the hydraulic diagrams (see section 8.3, page 54). The
person in charge of this operation must ensure such compliance.
Unlocking the temperature:
Modify parameter 2212 from 70° C to the desired value (Maximum 85°C).
Unlocking the power:
Increase the value of parameter 9529 up to the value of parameter 9530
(corresponding with the nominal power of the boiler).
!
WARNING:
Adjusting the boiler to operate using propane results in the
modi cation of parameter 9529; the boiler power locking function is
therefore no longer active.
MODELS
Parameter 9529 value 120 140 180 225 275 320 390 450
power locked 4610 5300 3180 3870 3360 3930 3440 3900
power unlocked 6490 7460 4410 5400 4620 5450 4810 5480
5.2. Pre-commissioning checks
For a cascade installation, check the hydraulic balance of the boilers.
Check that pressure when cold is at least 1 bar.
If this is a boiler room renovation, ensure that ushing and if necessary
silt removal from the installation have been correctly done (see
paragraph 1.5, page 7 of these instructions).
Check the ue-gas connections depending on the type of chimney (refer to
paragraph 4.9, page 24).
Check that the gas pressure and type are suitable for the products.
!
DANGER: It is forbidden to use water containing glycol.
!
WARNING:
If connecting CHIMNEY B23 or B23P, it is COMPULSORY to t the air
lter supplied with the boiler.
40


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