Glow-worm Clearly Hybrid - Universal Module System - Manual (Page 19)

0020096317_01 - 02/11 - Glow-worm
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Key
1 Systempro control unit
2 Domestic hot water cylinder
2.1 Domestic hot water NTC
2.2 Domestic hot water thermostat
3 Boiler
4 Non-return valve (recommended to prevent burner ignition triggered
by thermo-siphoning)
5 Domestic hot water cylinder 2 port valve
6 Boiler circuit 2 port valve
A Heating circuit return
B Heating circuit fl ow
C Cold water supply
D Domestic hot water fl ow
E Boiler circuit fl ow
F Boiler circuit return
G Heat pump circuit fl ow
H Heat pump circuit return
I Heat pump circuit safety valve discharge
Application conditions
- The Systempro control unit manages the Domestic Hot Water
cylinder (only with diagram no 10).
- The maximum working pressure of the domestic hot water
circuit is 10 bar. If the cold water supply pressure exceeds this,
then a pressure-reducing valve must be fi tted in the supply to
the boiler.
- In areas where the water is ‘hard’ (i.e. more than 200 mg/L
of calcium carbonate), it is recommended that the hot water
setting is reduced and that a scale reducer is fi tted, refer to the
manufacturer’s instructions or consult the local water company
for additional advice.
e
Use 0.75 mm² section cables for the electrical
connections to the control unit.
Control unit settings
Description of main settings Setting
Installation option: Domestic Hot Water cylinder On
The type of tank
NTC sensor (1NTC)
or
Thermostat (1Therm)
INTRODUCTION
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