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3.1 SYSTEM COMPONENTS
2
9
4
5
1.
Accumulator (Cold Water Storage)
2.
Unvented Cylinder
3.
Cylinder Thermostat (Indirect)
4.
Immersion Heater Thermostat
5.
Immersion Heater
6.
Expansion Relief Valve
7.
Pressure Reducing Valve
Note: All items numbered are supplied.
3.2 SPECIFICATIONS
3-2.1 Cylinder
Maximum Water Supply Pressure
Operating Pressure
.......................................................
Pressure and Temperature Relief Valve
Maximum Temperature
Cylinder Thermostat
............................
Recommended Setting
High Limit Thermostat
Immersion Heater
Voltage
..............................................................................
Power
.................................................................................
Motorised Valve
.............................................................
7
Option A
Hot Supply
14
9.
10. Tundish
12. Cold Main Shut Off Valve
14. Cylinder Drain Cock
15. Tee Connection
..........................
10 Bar/90°C
....
.....................................................
range 45°C to 75°C
50°C min - 70°C max
...................
fixed @ 85°C
.....................................
TYPICAL LAYOUT AND CONNECTIONS
12
6
10
3
D
F
Pressure Relief Valve & Temperature
Relief Valve
6.0 Bar
3-2.2 Accumulator
3.5 Bar
Membrane
Maximum pressure
75°C
Factory set pressure
3-2.3 Pipes
All pipes should be sized to suit application.
240v
3-2.4 Electrics
3kW
All systems are supplied for 240V SINGLE PHASE.
V4043H
8
TECHNICAL INFORMATION 3
The accumulator must be set at between 1 and 1.5
bar below the pressure reducing valve setting.
Minimum accumulator pressure 0.5 bar (7 PSI).
If there is an incoming pressure of 3.5 bar or over DO
NOT adjust the accumulator pressure. You should only
take air out of the accumulator and not pump it up on
installation.
3.1a SCHEMATIC LAYOUT
(Indirect unit)
G
H
15
Accumulator
A.
Water from system
B.
Accumulator Drain Cock
C.
Controlled action diaphragm
D.
Gas charge
E.
Gas charge valve
F.
Internal clench ring
G.
Threaded nut for pum stand installation
H.
Air flow design to reduce condensation
I.
Diffuser directs flow up and out
Butyl for wholesome water
.................................
.........................................................
.........................................................
E
1
A
C
J
B
10 Bar
2 Bar
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