Domestic Hot Water System - Glow-worm COMPACT 100e Instructions For Use Installation And Servicing

ADDITIONAL
EXPANSION
VESSEL
(if required)
RETURN
HEATING
CIRCUIT
'A'
FLOW
CONTROL
VALVE
5.1 General
The domestic hot water service must be in accordance with the
rules in force in the countries of destination.
5.2 Water Pressure
For the minimum and maximum working pressures of the
domestic hot water circuit of the boiler refer to diagram 1.2.
If the cold water supply pressure exceeds the maximum, a
governor must be fitted in the supply to the boiler to reduce the
pressure to within the limits given.
221894A
4 Heating System
DOMESTIC
WATER
BOILER
OPTIONAL FILLING
KIT AVAILABLE
No. 457120
FILLING
POINT
DRAIN
POINT
Diagram 4.2

5 Domestic Hot Water System

ALTERNATIVE METHODS OF FILLING
METHOD 1
TEMPORARY
HOSE
HOSE
UNIONS
SUPPLY STOP
SUPPLY
VALVE
PIPE
METHOD 2
TEMPORARY
HOSE
HOSE
UNIONS
SUPPLY STOP
VALVE
SUPPLY
PIPE
METHOD 3
CISTERN
OVERFLOW
SERVICING
VALVE
SUPPLY
STOP VALVE
SUPPLY
PIPE
5.3 "Hard" Water Areas
In areas where the water is "hard", more than 200mg/litre, it is
recommended that a proprietary scale reducer is fitted in the
cold water supply to the boiler. Consult the local water company
for additional advice.
A double check valve assembly must be fitted upstream of the
scale reducer. For the relative position of the scale reducer and
pressure reducing valve, if required, refer to the manufacturer's
instructions.
12
COMBINED
CHECK VALVE
HEATING
AND VACUUM
SYSTEM
BREAKER
SERVICING
VALVE
HEATING
DOUBLE CHECK
SYSTEM
VALVE ASSEMBLY
SERVICING
VALVE
HEATING
PRESSURE SYSTEM
REDUCING
VALVE
HOSE
DOUBLE CHECK
UNIONS
VALVE ASSEMBLY
Diagram 4.3