21
Harrier GTE -
Installation & Servicing
INSTALLATION
29 HYDRAULIC TEST
1. Seal off the flow and return connections.
2. Fit a suitable supply line with valves and
union connection.
3. Fit a suitable valve to vent the boiler.
(Temporary only.)
har7007
2
1
3
1
har7010
4
6
5
7
8
9
10
bar
7,8
0
4. Fill the boiler then shut off the
supply water.
5. Shut off the inlet valve.
6. Close the vent valve.
7. Disconnect the supply water.
8. Connect the pressure system
water.
9. Open the fill valve.
10. Pressurise the boiler. Maintain
pressure for at least 10 minutes.
Any drop in pressure indicates a
leakage in the boiler body.
11. After successfully conducting the
test, release the pressure and
drain.
After assembling the boiler body, the installer must carry out a water tightness
test at a pressure equal to 1.3 times the operating pressure (that is 7.8 bar
minimum) for 10 minutes at least. The test must be done at room
temperature.
INST
ALLA
TION
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