Technical data

Installation, user and maintenance manual – GAHP-GS/WS
25
In case of winter saesonal switch-off or long period of stopping, we suggest to not emp-
ty the hydraulic circuit: in that case possible oxidation process can occur.This oxidation
process could damage both the hydraulic system and also the Robur heat pump.It’s im-
portant to verify that no leakages occur in the hydraulic circuit that may empty part of
the system. The above recommendation is necessary in order to avoid to fill continuously
with water that may imply the additional introduction of oxygen and the consequent
dilution of the used inhibitor, for ex glycol. In case of precence of glycol, Robur advices to
use inhibited glycol. Galvanized pipes are not recommended, as they are not compatible
with glycol.
You will need: the appliance disconnected from the electricity/gas supply
open the plant gas supply valve to the appliance and make sure that there is no 1.
smell of gas (indicating possible leaks);
if you smell gas, close the gas valve again immediately without operating any oth-
er electrical device and, from a safe place, request the assistance of professionally
qualified personnel.
If no smell of gas is detected, connect the appliance to the electricity supply mains 2.
via the external circuit breaker provided by the installation technician in the ap-
propriate panel (set the "GS" circuit breaker to the "ON" position, see Figure 6.6
Electrical wiring diagram → 50);
power up the CCP (if present) or DDC (if present);3.
check that the hydraulic circuit is charged;4.
check that the condensate siphon is NOT empty or blocked (see Paragraph 5.5 5.
CONDENSATE DISCHARGE → 31);
check that inlet/outlet ducts are correctly connected and NOT obstructed.6.
switch on the appliance by means of the on/off command (or DDC if present and 7.
in control mode, or via CCP, if present).