Instruction manual GWV 59

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10 Shutting down

10.1 Introduction

This chapter describes:
•Shutting the installation down for a brief period
("OFF mode");
•Isolating the appliance from the mains;
•Shutting the appliance and storage tank down for
a long period.

10.2 Shutting the installation down for a

brief period ("OFF mode")

To shut the installation down for a brief period, you
must activate the frost protection.
You can use the frost protection to prevent water
freezing in the appliance.
Activate the frost protection as follows:
1. Press the button to select the main menu.
2. Use and to position the cursor in fro nt of
OFF
.
Confirm with .
The frost protection cuts in if the water temperature
drops below 5°C. The text
FROST
will then appear on
line one of the display. The appliance heats the water
to 20°C (Tset) and drops back to the
OFF
mode.
Note
These values of 5°C and 20°C cannot be adjusted.

10.3 Isolating the appliance from the mains

The appliance should only be isolated from mains
power in the correct way. The correct procedure is as
follows:
1. Activate the
MENU
with .
2. Position the cursor in front of
OFF
.
3. Confirm
OFF
with .
Caution
Failure to wait until the fan stops purging can
cause damage to the appliance.
4. Wait until the fan has stopped. The icon then
goes out.
5. Switch the appliance OFF (position 0) using the
ON/OFF switch on the control panel.
6. Isolate the appliance from the power supply by
setting the isolator between the appliance and the
mains power supply to position 0.

10.4 Shutting the appliance and storage

tank down for a long period

Drain the appliance and storage tank if you are
shutting the installation down for a longer period of
time. Proceed as follows:
1. Isolate the appliance from the power
supply (10.3 "Isolating the appliance from the
mains").
2. Shut off the gas supply.
3. Close the stop valve in the hot water pipe.
4. Close the supply valve of the protected cold supply
setup.
5. Open the drain valve
6. Open the air valves to the appliance and storage
tank so that the water can run out of them
completely.
OFF
13:45 Thursday 6ÉC
FROST PROTECTION
ACTIVATED
MENU
»OFF
^ ON
È WEEK PROGRAM
GENESIS
IMD-
05
11 R1