Glycol Heating Fluid - Alde Compact 3020 Instructions D'utilisation

1.11 GLYCOL HEATING FLUID

NOTICE
Always ensure that the level of glycol is
correct in the heating system.
CAUTION
OBSERVERA
The heating system comes installed with glycol
heating fluid. If the fluid is drained for any reason, you
ATTENTION
must replace it before operating the heating system.
VOORZICHTIG
Your warranty may be voided and the heating system
may be damaged if you attempt to start it with little or
no glycol heating fluid.
Regularly check the fluid level in the expansion tank. The markings on the side indicate the maximum and minimum
fluid level (see figure 6). The level should be about 0.5 in (1 cm) above the minimum indicator in a cold tank. Please
see the directions below for filling the heating system.
Do not mix different types of glycol; this can lead to coagulation of the glycol fluid.
The heating system must be filled with a mixture of water and glycol. Use only high quality ready-mixed glycol (with in-
hibitor) intended for aluminum heating systems. The glycol must be labeled "GRAS" (Generally Recognized As Safe).
Contact Alde for a list of approved glycol suppliers.
If you are using concentrated glycol, the mixture should consist of 60% distilled water and 40% glycol. If the heating
system will be exposed to temperatures below -15 °F (-25 °C), the glycol content must be increased but not to more
than 50%.
Any containers used for the glycol must be spotlessly clean and the pipes in the heating system must be free of
contamination. This will help inhibit the growth of bacteria in the system. The glycol content should be checked at the
expansion tank using a pH tester before topping up with new liquid to help ensure that the concentration of glycol in
the mixture is not too high.
If the fluid level falls for reasons other than evaporation, please check all joints, drain cocks and bleeder screws for
leakage, including the bleeder located at the end of the convector.
WARNING
POISONING HAZARD
VARNING
Be sure to thoroughly clean up any puddles of leaked
glycol. Rinse the area with water and wipe up the ex-
AVERTISSEMENT
cess. The recommended glycol product is considered
WARNUNG
nontoxic, but we still recommend that you use care to
help prevent accidental ingestion by children or pets.
ADVARSEL
VAROITUS
1.12 FILLING THE HEATING SYSTEM WITH GLYCOL FLUID
ADVERTENCIA
AVVERTENZA
NOTICE
WAARSCHUWING
Any containers used to carry the fluid must be spot-
lessly clean and the pipes in the system must be free
of contamination. This will help inhibit the growth of
bacteria in the system.
Fill the heating system through the expansion tank, either manually or using the Alde filling pump, which both tops up
and bleeds the system. To purchase a filling pump, contact your Alde dealer. For manual filling, remove the nut
(figure 6) from the tank. Slowly pour the glycol mixture into the tank. Bleed the heating system (see directions on page
13). Top up with more liquid if the level has fallen after bleeding. Bleed a newly filled heating system regularly during
the first days the heating system is in operation.
12
Figure 6. Expansion tank
NOTICE
The glycol mixture should be changed every second
year to help ensure maximum corrosion inhibitor
effectiveness
Nut for filling
Min. level of fluid
in a cold system