IN1233
Edition 2
Installation Servicing Instructions
29
TDA Thermodual Installation Manual
10.2 EW1
Extension
Board
Return probe
57
56
55
54
53
52
51
50
61
60
59
58
Version M 16
PE
N
N
PE
L
L
N
PE
N
PE
Cl
Op
Mo
t.
v
alve
boiler re
turn
Multi-
output
MAIN
S
Mandatory item (to be connected by installer)
Optional item (to be connected by installer if utilised by system)
The boiler requires a separate spur and supply line with a 13 amp fuse.
Fuse characteristics of the boiler are 10A type B.
Connect power to both the main control board into connection number 27 and the EW1
Extension Board connection number 58.
10.3 Power
Supply
