Technical data

Installation, user and maintenance manual – GAHP-GS/WS

The appliance switches oﬀ: the water in the plant, returning from use, becomes •

progressively cooler, until it reaches a temperature of 38°C = 40°C - 2°.

The appliance switches on again, and the plant water heats up again.•

The cycle is repeated.•

The following procedure illustrates in detail how to conﬁgure the parameters on the elec-

tronic board inside the appliance.

If the procedures for how to access the knob and menus are not familiar, see paragraphs

"Display and knob" and "How to access the menus" and following.

To set the parameters of menu 3:

You will need: the appliance on and access to the electrical panel, see "Display and

knob".

Access menu 3. The display shows the ﬁrst parameter of the menu, number 73.

Turn the knob clockwise to scroll through the parameters: 3.73, 3.75, 3.76, 3.160, 1.

3.161, 3.162; lastly the letter E is shown.

Press the knob when a parameter is displayed to select it, or when E is displayed to 2.

exit the menu.

For example, to set parameter 161 (hot water set-point), proceed as follows:3.

· Select the parameter: turn the knob until the display shows 3.161;

· Press the knob to access the value of the parameter; the display shows the previ-

ously set value, which ﬂashes, for example 40.0 °C;

· Turn the knob to modify the value of the parameter;

· Press the knob to conﬁrm the value selected; the display shows the current pa-

rameter again, 3.161. The new value for this parameter has been set.

If other parameters are to be modiﬁed, proceed as described previously, and then 4.

exit from the menu by pressing the knob on the letter E.

To exit the menu, turn the knob clockwise until E is displayed, then press it to conﬁrm. For

details regarding the codes displayed by the appliance during operation, see Paragraph

9.1 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING → 82.

5.9 SAFETY VALVE DISCHARGE ROUTING

Standard EN378-3 requires that potential leaks of refrigerant be discharged outside the

machine room.

To meet this requirement, the appliance has an outlet on its top panel (detail Q of Figure

3.1 Size → 15) to which a pipe can be ﬁtted to route the refrigerant vented by the safety

valve on the sealed circuit out of the machine room.

DO NOT ﬁt any check equipment (valve, etc.) between outlet Q (Figure 3.1 Size → 15) and

the external discharge of the evacuation pipe. The manufacturer does not accept any

contractual or extra-contractual liability for any damage caused by improper use of the

said pipe.

The missing right installation of the canalization of the security valve might cause dan-

gerous situations inside the installation room. The unit can be switched-on only if the

right canalitation is installed, as indicated in the following.

Install the pipe as instructed below.