MHS Boilers Alpha Jetstream MD, Инструкция по установке и эксплуатации

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After assembly of all sections, apply compression tools for the block. Before loosening
fit upper and lower staybolts (7,8) using M12 nuts (9) and washers (10).
5. Fit studs M12x45 (20) to return and flow connections of the rear section.
Do not use excessive force to tighten the nuts up on the staybolts, from 48 to 54 Nm
(35 - 40 lbf/ft) torque is recommended.
Hydraulic test Fit plugs (147) to top and bottom of front section. Fit 1/8" plug (109) supplied in boiler
block into 1/8" hole on top of the rear section (with control panel this hole is not used).
For 1/2" and 3/8" instrument tappings on top of the rear section, use
1/2" and 3/8" pockets for bulbs supplied with standard control panel or suitable plugs.
Use hydraulic test apparatus for the boiler. Fit bottom test flange with two globe valves
and test gasket to return connection. Fit blank flange and the other test gasket to flow
connection as shown for MD boiler in the following figure.
Connect a hydraulic test set to one of the globe valves on test flange fitted to return
connection. Fill the boiler with water by connecting the other valve on test flange to the
water circuit. Meanwhile, release the air left in the boiler via bulb pocket holes on top of
the rear section. When water comes out of the holes, refit the bulb pockets . Turn the
valve connected to circuit off and turn the other valve connected to the hydraulic test set
on. Pressurise the boiler via the pump on the test set until the pressure gauge
reaches the test pressure.
Hydrostatic test should be carried out at a pressure of 1.5 x P; where, P is the
maximum operating pressure of boiler. Duration of test should be at least 30 minutes.
The hydrostatic test must always be carried out before boiler being jacketed or heat
insulated, and connected to the heating circuit.
After hydrostatic test, "Boiler Assembly Certificate" should be filled in and signed by the
erector/installer. In order for warranty terms of boiler to be valid, make sure
that this certificate is completed, signed, and sent to MHS. We recommend that you
ask for a copy of assembly certificate from erector/installer.
ASSEMBLY INSTRUCTIONS