7
EN
HEATING CONNECTION
Example of a basic circuit configuration
(see illustration G)
1. 3-way motorised mixing valve
2. Safety valve set to 3 bar with pressure gauge
3. Circulator
4. Non-return valve
5. System filling valve
6. Expansion tank
7. ACV 13 controller
(see controller kit page 7)
8. Central heating isolating valve
9. Drain cock
Hydraulic kit + ACV heating kit (see illustration F)
ACV offers an optional pre-assembled circulation kit comprising:
- a circulator.
- a 3-way manual motorisable valve.
- connecting pipes including a second optional circuit.
- two isolating valves.
- adapters for mounting safety valve with pressure gauge and filling
valve to right or left of expansion tank. The expansion tank is not
included.
HOT WATER CONNECTION
Pressure reducer
If the water mains pressure is greater than 6 bar, a pressure
reducer calibrated to 4.5 bar must be fitted.
Safety unit
The tank safety unit must be ACV approved and calibrated to 7 bar.
The valve discharge must be connected to the sewer drain.
Hot water expansion tank
Installing a hot water expansion tank avoids any risk of pressure
surges due to water-hammer or pressure variations.
Hot water circulation
If the tank is situated a long way from the point of use, then
installing a closed return circuit can provide a faster supply of hot
water always available.
Example of connection with thermostatic valve
(see illustration H)
1. Safety unit
2. Pressure reducer
3. Thermostatic mixing valve
4. Hot water circulator
5. Non-return valve
6. Hot water type expansion tank
7. Cold water feed valve
8. Drawoff tap
9. Drain cock
10. Bleed valve
11. Isolating valve
IMPORTANT
As a safety measure against burns, we strongly
recommend installing a thermostatic mixer.
Optional fittings available
CONTROLLER KITS
KIT 1: ACV 13.00 / Basic (see illustration C)
Basic kit for regulating flow temperature according to weather
conditions.
It comprises: temperature regulator with analogue timer, water
temperature detector (-30°/130°C), outside temperature detector
(-30°/50°C), 230V - 3 spindle servomotor SSY 319 and intermediate
socket.
KIT 2: ACV 13.00 / Standard (see illustration D)
Standard kit for regulating flow temperature according to weather
conditions.
It comprises: temperature regulator with analogue timer, water
temperature detector (-30°/130°C), outside temperature detector
(-30°/50°C), 230V - 3 spindle servomotor SQK 349 and intermediate
socket.
Wiring diagram of ACV controller kits
(see illustration E)
B2. Temperature probe
B9. Outside temperature probe
B5. Analogue/digital room thermostat
P1. Central heating pump
Y1/Y2/N. Mixer valve (SSY 319 or SQK 349)
bl. Blue N
n/z. Black Y2
br. Brown Y1
INSTALLATION
Safety unit Ø 3/4”
Pressure reducer Ø 3/4“
Thermostatic mixing valve Ø 3/4”
Expansion tank 5 litres
