Thermor IAV 75 2 Notice page 17

WORKING PRINCIPLE WITH BOOSTER PUMP: Supply a pump (optional kit) the aquastat diverter valve, which is fitted in series, is put in the pocket as the bulb of the tripolar
electric thermostat controlling the electrical power. Make an electrical connection between the aquastat and the booster pump control. The recommended setting for the aquastat is 65°C
(factory setting) and of the tripolar electric thermostat controlling the electrical supply on maximum i.e. 65°C.
Connection in series: Where several appliances are connected in series, ensure that the safety units are capable of accepting high temperatures.
ELECTRICAL CONNECTION(SEE THE TABLE OF DIAGRAMS PAGE AND REFER TO THE RELEVANT DIAGRAMS)
The water heater can be connected and powered only by a single-phase 220/240V AC or a three-phase 400V mains supply according to model. Connect the water heater via a fixed duct with
a cross section of 2.5 mm . For that, use standard channeling (fixed or fluted conduit) to the calibrated receptacle in the cover. For appliances supplied with a cable or a plug (prohibited in
2
France),connect directly. The earth wire of the cable must be connected to earth or lead the earth wire to the terminal provided indicated by the symbol :
This connection is absolutely necessary for safety reasons. The green/yellow earth lead must be longer than the two live wires. Installation must include upstream of the appliance, an all-
pole cut-out device (contact opening at least 3 mm: fuse, breaker switch). Where the water pipes are are made of insulating material, the electrical contacts must be protected by a 30 mA
earth-leakage breaker conforming to the standards in force. Adapt the connection to the power supply. (see diagrams A1 to F2 and table p. 4)
Thermal circuit breaker: All our mixed products are equipped with a thermostat with thermal circuit breaker with manual resetting which cuts off the power supply to the water heater in
case of overheating.
Warning: If the safety trips a) switch off the power before taking any further action, b) remove the cover, c) check the electrical connections, d) reset the thermal circuit breaker. If
the circuit breaker keeps tripping, replace the thermostat. Never short circuit the safety cut out or the thermostat. Connect the power supply only via the terminal.
ELECTRICAL CONNECTION. - Optional kits: For the installation and electrical connection of the kits refer to the instruction included with each package. (electrical kit, pump kit)
When using a tank for a solar system take not of local legislation. (E.g.: prohibited in Spain)
FOR ACI MODEL WITH CONNECTION OF THE CATHODIC PROTECTION
No other action is required (internal connections are already made).
A 3 solid core power cable form the appliance powering your anti-corrosion protection (ACI) system is ready to be connected to the bridging terminal, with power on 24/24
hours.
After switching on the appliance, check that the green ACI indicator LED on the cover flashes no later than 15 minutes after the appliance is switched on.
S E T
WARNING: Never switch on the water heater without water.
The secondary circuit must be filled. Before switching on, open the hot water taps, vent the pipes of air and fill the appliance.

Fill the primary circuit (circuit connected to the boiler) Open the water tap, unscrew the air vent to purge air introduced by the filing operation. For an installation fitted with a booster

pump, switch it on for a moment or two to speed up de-gassing. Check that the system is full of water, either by checking the level of water in the open header tank, or by opening the vent at
the top of the installation.
Check the watertightness of the pipework and the door seal below the cover. In case of a leak, tighten slightly. Check that the water safety devices are working and fill the drain . Switch

on the appliance. After 15 – 30 minutes, depending on the capacity of the appliance, water should drip from the drain hole. This phenomenon is due to water expansion and is
normal. Check the watertightness of the joints and the seal. During heating and depending on water quality, room-sealed water heaters can produce a boiling noise; this is normal and does
not indicate any defect on the appliance.
To avoid the development of bacteria (legionella...) ensure that a temperature of 60°C is reached every day. The thermostat is set at the factory at the stop (65°C+- 5°C ).
IMPORTANT : If steam or boiling water emerges continuously from a supply tap or a drain valve, switch off the electricity to the water heater or boilerand call a professional plumbing
contractor.
YOUR APPLIANCE IS IN WORKING ORDER
A) IN WINTER: Without electric kit: The domestic water is heated by the primary circuit (thermal exchange). The aquastat diverter valve controls the starting of the booster pump and
allows the primary fluid to circulate; it can also be connected to the heating system pump.
B ) IN SUMMER OR IN MID-SEASON:
Cut the power supply linking the pump control thermostat. Turn the switch on the electric panel feeding the thermostat connected to the power supply.
Push the switch "Summer/Winter" found on the electrical cover of the heat exchanger tank.
If you do not have an electric kit, hot water will be produce by the primary circuit (thermal exchange) - same for winter.
U P / O
If you have an electric kit, the boiler being disconnected , domestic hot water will be produce by the electric current.
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