Pressure Gauge Replacement; Prv Replacement - Ideal Heating LOGIC MAX SYSTEM2 S15 Installation & Servicing

3.18 PRESSURE GAUGE REPLACEMENT

Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Remove the boiler front (see section 3.2), lower the
control panel and remove the control box cover.
3. Ensuring there is no pressure in the system unclip the
C clip from the flow pipe port and remove the capillary
connection together with 'O' ring.
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3.19 PRV REPLACEMENT

Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Remove the trap and rubber pipe.
3. Pull out and remove the clip retaining the PRV.
4. Lift out the PRV/pipe assembly.
5. Remove the pipe and transfer to the new PRV.
6. Reassemble ensuring the retaining clip is correctly fitted.
Installation and Servicing
Section 3 - Servicing
4. Releasing the two retaining clips on the pressure gauge
ease the pressure gauge through the front of the control
panel.
5. Fit the new pressure gauge from the front of the lower
control panel ensuring correct orientation. Locate push fit
connection into flow pipe ensuring 'O' ring in place and
secure with the C clip.
6. Refill the boiler.
Refer to Section
2.17
7. Check the operation of the PRV by raising
the water pressure until the valve lifts. This
should occur within 0.3 bar of the preset lift
pressure.
8. Check no escape of water occurs except at
the discharge point
9. Release water from the system until the
minimum system design pressure is reached;
1.0 bar if the system is to be pre-pressurised.
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SCAN
for video
Refer to Section
2.17
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