9
CONNECTION DIAGRAMS
BASIC CONNECTIONS
REMOTE HOLIDAY SWITCH
RECORDER OUTPUT FOR
TEMPERATURE INDICATION
MAXIMUM BOOST PLANT
SWITCHED BY R1
COMPENSATED BOOST PLANT
SWITCHED BY R1
DAY CONTROL OF
BOILER/PUMP
DAY CONTROL OF PUMP WHEN BOILER IS
ON CONTINUOUSLY THROUGHOUT DAY
(Frost protection - boiler and pump control).
TWO POSITION DAY CONTROL OF MAINS VOLTAGE
MOTORISED VALVE (Boiler/Pump on continuously
during day)
Slide Switch 'S' (see Fig.16)
R1 closes at optimum start or inside <Tn.
R1 opens at switch off time.
R2 makes 5-3 at occupancy time (boost termination).
R2 makes 5-4 at switch off time after inside temperature
cools to below Td.
R2 makes 5-3 if inside temperature >Td.
R2 makes 5-4 if inside temperature <Td.
(nominal differential 1
°
C).
1 & 2 - PLANT (Boiler/Pump)
3 - DAY
4 - BOOST
5 - COMMON
Fig.1
Voltage free outputs
WIRING PRECAUTIONS
Fig.2
The switch takes effect at
the next switch on time
HOLIDAY (Open)
AUTO (Closed)
Remove
link 6-7
Fig.3
RECORDER
0 to 10Vdc
RECORDER 0
to 100mV input
0V = 5
°
C, 10V = 25
°
C
CSC 4201
CSC 4202
CSC 5252
Fig.4
Set 'SVT' to 1
in Fine Tune
mode
CSC 4201
CSC 4202
CSC 5252
Fig.5
Set 'SVT' to 0
in Fine Tune
mode
Fig.6
PLANT (Boiler/Plant)
Voltage free output
WIRING
PRECAUTIONS
Fig.7
To pump
control circuit
To boiler
control circuit
WIRING
PRECAUTIONS
Fig.8
PLANT
(Boiler/Pump)
Voltage free
output
Mains actuator
WIRING
PRECAUTIONS
