Hydraulic Connections; Water Treatment - REMEHA Gas 120 ACE Series Installation And Service Manual

Fig.19
12
12
(1)
5.5

Hydraulic connections

Tab.19 Installation water specifications
Degree of acidity (untreated
water)
Degree of acidity (treated wa­
ter)
Conductivity at 25°C
Chlorides
Other components
Total water hardness
(1) Flow temperature less than 90°C — Maximum hardness: 1.50 mmol/l
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12. Level the boiler using the adjustable feet.
(1) Factory setting: 30 mm, adjustment range: 20 to 40 mm
MW-6000773-01
5.5.1
In many cases, the boiler and the heating system can be filled with mains
water, without treating the water.
The water in the installation must comply with following specifications:
pH
pH
μS/cm
mg/litre
mg/litre
°f
°dH
mmol/litre
(1)
Caution
The rear castor wheels must no longer be in contact with the
ground.

Water treatment

Caution
Do not add any chemical products to the heating water without
first consulting a water treatment specialist. For example:
antifreeze, water softeners, products to increase or reduce the pH
value, chemical additives and/or inhibitors. These may cause
faults in the boiler and damage the heat exchanger.
Important
Flush the installation with at least 3 times the volume of water
contained in the heating system.
Flush the DHW circuit with at least 20 times its volume of water.
Initial commissioning
6.5 - 8.5
7.0 - 9.0
≤ 500
≤ 50
< 1
5 - 35
2.8 - 20.0
0.5 - 3.5
5 Installation
Concentration (top up)
6.5 - 8.5
7.0 - 9.0
≤ 500
≤ 50
< 1
≤ 15
≤ 8.5
< 1.5
Gas 120 ACE 27