Ariston microCombi Manuale di istruzioni per l'installazione - Pagina 12
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2.10 R
T
OOM
HERMOSTAT
C
ONNECTION
2.11
E
/S
LECTRICAL
D
IAGRAMS
L
:
EGEND
A
= Central Heating Temperature Adjustment
B
= Domestic Hot Water Temperature Adjustment
C
= Soft-light Adjustment
D
= Maximum Heating Adjustment
E
= Time Clock Connector
F
= On/Off Switch
G
= Fume Sensor L.E.D.
H
= Central Heating Selector
I
= Ignition Failure (Lockout) L.E.D.
J
= On/Off L.E.D.
K
= Reset Button
L
= Central Heating L.E.D.
M
= Transformer
N
= Circulation Pump Relay
O
= Fan Relay
P
= Gas Valve Relay
Q
= Spark Generator I.C.
To connect a room thermostat, it is necessary to:
1. - Open the control panel as indicated in section 3.3.
2.- Remove the link "A" from the terminal block on the reverse of the control panel.
3. - Insert the thermostat cable through the cable grommet and fasten it by means of the
cable-clamp provided.
4. - Then connect the thermostat wires to the terminal block.
5.- If a remote time clock is to be fitted, disconnect the integral time clock from the P.C.B.
6. - Using a volt-free switching time clock, connect the switching wires from the time clock
following points 1-4 above.
7. - If using an external time clock and room thermostat, these must be connected in
series as points 1-7 above.
Note: Only a two-wire type room thermostat can be used.
An anti-frost device is built-in to the appliances electronic regulation
system.
A
YSTEM
FO017A
FO016A
A01
=
Circulation Pump
A02
=
Fan
A03
=
Spark Generator/Gas Valve Supply
A04
=
Flame Detection Circuit
A05
=
Detection Electrode
A06
=
Main Circuit Temperature Probe
A07
=
Domestic Hot Water Temperature Probe
A08
=
D.H.W. Flow switch
A09
=
Pump Pressure Switch
A10
=
Modulator
A11
=
Air Pressure Switch
A12
=
Safety Thermostat
A13
=
External (Room) Thermostat
Colours:
Gry
=
Grey
Wh
=
White
Pnk
=
Pink
Brn
=
Brown
Bl
=
Blue
Blk
=
Black
Rd/Blk =
Red/Black
12