OSO DGC 200 Installation Manual page 7

OSO Delta HP VIP cylinders can
be fitted with all types of boilers.
Standard Heat pumps operate
using room and cylinder
thermostats. Please follow upper
diagram:
'Wiring for Standard Heat Pump'.
Thermistor controlled Heat
Pumps
Many popular Heat
Pumps now use a thermistor
principle. A thermistor
temperature sensor is supplied
with the Heat Pumpto attach to
the cylinder. Temperature
information is relayed back to the
Heat Pump control system.
A Pocket is provided (see below
to secure the sensor on the Delta
HP VIP cylinder. The probe is run
through a channel from base of
cylinder to the immersion housing
and housed there in a pocket. The
thermistor cable should be
secured using the supplied
clamps in the bottom opening of
the channel. The supplied
motorised valve must be used in
accordance with Building
Regulation G3. This is wired from
the supplied cylinder thermostat,
wired as high limit stat.
Please follow lower diagram:
'Wiring for Thermistor Controlled
Heat Pump'.
Probe position
Using Cylinder Thermostat as
high limit stat only - coil the
grey temperature probe wire
inside thermostat box and insert
black probe into thermostat
pocket of cylinder then turn dial
on front to number 5
S Plan Wiring
Wiring for Standard Heat pump
Zone Valve (Htg)
(not supplied)
V4043H
G Br B1 O
1
Isolated Mains L N E
Supply From
1 2
Fused Spur
1 2 3
L N E 4
ST6400
Programmer
Wiring with Heat pump differential controller
Zone Valve (Htg)
(not supplied)
V4043H
G Br
1
Isolated Mains L N E
Supply From
1 2
Fused Spur
1 2 3
L N E 4
ST6400
Programmer
Channel
running
from
Piping
base of
Diagram
cylinder
Heat pump
Room
thermostat
T6360B
1 3 2
G/Y
2 3 2
3 4 5 6
3
HTG HW
ON ON
Room
thermostat
T6360B
B1 O
G/Y 1 3 2
2 3 2
3 4 5 6
3
HTG HW
ON ON
2-port valve
(supplied)
Automatic
bypass
OSO Cylinder
Zone Valve (DHW)
Thermostat
(supplied)
(supplied)
N C NC NO V4043H
G Br Bl
1 2
1
7 8 9 10
2 3 2 3
L N E L N E
Heat Pump Pump
OSO Cylinder
Thermostat
(supplied) Wired as
Zone Valve (DHW)
high limit stat
(supplied)
C NC NO
N
V4043H
G Br Bl
1 2
1
Thermistor wire
7 8 9 10
Connected to
Heat Pump control
system
2 3 2 3
L N E L N E
Pump
Heat pump differential controler
Zone valve
(not supplied)
Radiators/
UFH
Pump
flow
O G/Y
2 3
G/Y
O
2 3
7