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Monobloc Outdoor Unit Installation Manual
7.4 Minimum water loop volume
This volume is required to obtain temperature stability and precision:-
Application
RUA-CP
1701H*
2101H*
Air Conditioning
L
52.2
65.1
Heating or DHW application
L
102.6
126.6
To achieve the minimum water volume, it may be necessary to add a storage tank to the circuit.This tank should
be equipped with baffles to allow mixing of the fluid (water or brine). Please refer to the examples below:
7.5 Maximum water loop volume
Units supplied with the optional hydronic module incorporate an 8L expansion tank that limits the water loop
volume. The table below gives the maximum loop volume for pure water or ethylene glycol with various
concentrations.
If the total system volume is higher than the values given above, the installer must add another expansion tank,
suitable for the additional volume.
Static pressure
bar g
1.0
1.5
2.0
2.5
3
Fresh water
L
250
200
150
100
50
Ethylene glycol 10%
L
190.5
150
109
68.5
28
Ethylene glycol 20%
L
137
110
82.5
55
28
Ethylene glycol 30%
L
112
90
67.5
45
23
Ethylene glycol 40%
L
95
76
57
38
19
Good
Good
Bad
Bad
Содержание Estia RUA-CP1701H
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