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8
AWR-MTD2-XE
EN 11/2010
WATER CONNECTIONS
I A
Warnings
- The choice and installation of components is the responsi-
bility of the installer who should follow good working prac-
tice and current legislation.
Before connecting the pipes make sure that these:
- do not contain stones, sand, rust, scale or any foreign
objects that may damage the system.
- wash the system with clean water
Water connection dimensions
Components
The following components should be installed for correct
installation of the unit:
1. Two pressure gauges with a suitable scale (inlet and out-
let);
2. Two vibration damper joints (inlet and outlet).
3. Shut-off valves at the inlet and outlet.
4. A flow switch at the unit outlet on the system circuit
(compulsory). The flow switch must be calibrated by the
installer to a value equal to 70% of rated flow.
5. Two thermometers (inlet and outlet);
6. An inlet filter (compulsory) as close as possible to the
unit and positioned to allow easy access for scheduled
maintenance (both on the system circuit and domestic
hot water circuit).
7. All the pipes must be insulated with suitable material to
prevent the formation of condensate and heat loss.
The insulating material must be a vapour barrier.
Make sure that the control and shut off devices protrude
from the insulation.
8. At the lowest points in the system, install drain valves for
easy emptying.
9. At the highest points in the system, install automatic or
manual air vent valves.
10. The unit is fitted as standard with an expansion vessel;
make sure this is correctly sized for the water content of
the system and the expected operating temperature, oth-
erwise install an additional expansion vessel.
D
100
B
C
528.5
563.5
A
A = C
D
E
B
85
35
328
85
0011-0051
SAFETY VALVE
DISCHARGE
UNIT VENT
WATER INLET
WATER OUTLET
SYSTEM FILL G1/2
0061-0091
SYSTEM FILL G1/2
WATER OUTLET
WATER INLET
UNIT VENT
SAFETY VALVE DISCHARGE
OPENING FOR CONDENSATE DRAIN CONNECTION
Dimensions
0011
0025
0031
0041
0051
0061
0091
A
mm
61,5
61,5
61,5
61,5
61,5
90,5
90,5
B
mm
617
617
617
717,5
717,5
575
770
C
mm
57
57
57
57
57
90,5
90,5
D
mm
454,5
454,5
454,5
549,5
549,5
120
120
E
mm
-
-
-
-
-
560
551
Water in fittings
Ø
1"
1"
1"
1" 1/4
1" 1/4
1" 1/4
1" 1/4
Water out fittings
Ø
1"
1"
1"
1" 1/4
1" 1/4
1" 1/4
1" 1/4
Содержание AWR-MTD2-XE
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