27
-
N
R
E
N
L
N
E
L
-
N
R
E
N
L
N
E
L
L
N
N
L
L
N
E
FIGURE 21: AMPTEC DOUBLE BOILER WIRING
SECOND
BOILER
SUPPL
Y
DOUBLE POLE
ISOLA
TION
SWITCH
FIRST
BOILER
SUPPY
DOUBLE POLE
ISOLA
TION
SWITCH
BOILER CONTROL
SIGNAL
DEMAND
240 volts
NEUTRAL
CONTROL PUMP
SUPPL
Y
FIRST
AMPTEC BOILER
SECOND
AMPTEC BOILER
CONTROL PUMP
SUPPL
Y
EARTH PLUS
CASE EARTH
EARTH PLUS
CASE EARTH
RL2
HEA
TRAE SADIA
PAR
T NUMBER
96 970 135
PERMANENT
LIVE SUPPLY
240v
FUSE
NEUTRAL
EARTH
CAP
ACITOR
0.47uF 240v AC
A1
A2
COIL
14
12
11
CAP
ACITOR
0.47uF 240v AC
NORMALL
Y
OPEN
CONT
ACT
NORMALL
Y
OPEN
CONT
ACT
COIL
A1
A2
14
12
11
PUMP