IDEAL LOGIC+ Combi 30 Installation And Servicing

52
SERVICING
Ideal Logic + Combi - Installation and Servicing
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1. Refer to Frame 45.
2. Drain the heating system. Refer to Frame
59.
3. Unscrew the pressure gauge and discard.
4. Fit new pressure gauge, using suitable
jointing compound.
5. Rell the boiler. Refer to Frame 24.
6. Check operation of the boiler. Refer to
Frames 32-36.
60 PRESSURE GAUGE REPLACEMENT
59 DRAINING THE BOILER
DOMESTIC HOT WATER CIRCUIT
1. Refer to Frame 45.
2. Close all the DHW water isolating valves on the boiler inlet.
3. To drain the domestic hot water circuit: As there is no direct drain for
the domestic hot water circuit, depending on the location of the boiler, opening the lowest hot water tap may drain this circuit.
However it must be noted that some residual water will be experienced during replacement of components.
4. After replacing any component on the boiler, close tap, close the drain valve and open all system isolating valves (re-pressurise
as appropriate by re-connecting the lling loop, refer to Frame 24A) before proceeding to check operation of the boiler.
5. Disconnect lling loop. Refer to Frame 24A.
6. Check operation of the boiler. Refer to Frames 32-36.
CENTRAL HEATING CIRCUIT
1. Refer to Frame 45.
2. Close all the CH water isolating valves on the boiler inlet.
3. To drain the primary heat exchanger circuit: Open the drain valve and
attach a length of hose to the CH drain point.
4. After replacing any component on the boiler, remove the hose, close
the drain valve and open all system isolating valves (re-pressurise
as appropriate by re-connecting the lling loop, refer to Frame 24A)
before proceeding to check operation of the boiler.
5. Disconnect lling loop. Refer to Frame 24A.
6. Check operation of the boiler. Refer to Frames 32-36.
CH Circuit
Drain
CH
Flow
Gas CH
Return
DHW
Inlet
DHW
Outlet
Filling Loop
1. Refer to Frame 45.
2. Drain the boiler. Refer to Frame 59.
3. Remove the clip on return thermistor. Refer to frame 49.
4. Pull out and remove the clip (positioned behind the safety valve)
retaining the safety valve.
5. Undo the safety valve pipe compression tting positioned
outside the boiler casing.
6. Lift out the safety valve/pipe assembly.
7. Remove the safety valve pipe and transfer to the new safety
valve.
8. Reassemble in reverse order ensuring the retaining clip is
correctly tted, the pipe compression tting retightened and
return thermistor is re-clipped.
9. Rell the boiler. Check operation of the boiler. Refer to Frames
32-366.
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IDEAL LOGIC+ Combi 30 Specifications

General

Model	LOGIC+ Combi 30
Boiler Type	Combi
Central Heating Output	24.2 kW
Domestic Hot Water Output	30.3 kW
Efficiency Rating	94%
ErP Rating	A
Flow Rate	12.4 l/min
Dimensions	700x395x278 mm
Fuel Type	Natural Gas
Mounting	Wall Mounted
Warranty	7 years
Central Heating Pressure	3 Bar