Glow-worm 30sxi - Testing Heating System; Testing Domestic Hot Water System; Completion; 13 Specific Adjustment

0020092785_02 - 05/10 - Glow-worm
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12.6 Testing heating system
• Ensure that the external controls and programmer are calling
for heat.
• Fully open all radiator valves, see chapter "Appliance
installation ►Recommendations before installing ►Heating
circuit design".
• Activate the C.H. function on the appliance's control panel.
• Balance the radiators as required to give the required system
differential.
• Turn off all radiators that can be shut off by the user and
check to see if less than the maximum differential allowed of
20°C can be achieved across ow and return.
i
Should the appliance require adjustment refer to
specic adjustment section overleaf.
• Allow the system to reach maximum temperature then switch
off the boiler by isolating from the electrical supply.
• Drain the entire system rapidly whilst hot, using the drain
taps at all the low points of the system. Fill and vent the
system as described previously in chapter "Commissioning
► Filling the CH system (Central heating)".
• Adjust the boiler temperature controls and any system
controls to their required settings.
12.7 Testingdomestichotwatersystem
• Check that the temperature obtained is compliant with the
setting on the appliance (Smart wiring centre only).
12.8 Completion
• Ensure that the magnetic lighting instruction label is placed
on the surface of the boiler casing.
GB: It is a requirement that the “Benchmark” Installation,
Commissioning and Service Record is completed and left with
the user.
IE: it is necessary to complete a “Declaration of Conformity” to
indicate compliance to I.S.813. An example of this is given in
the current edition of I.S.813.
13 Specicadjustment
13.1 Heating circuit adjustment
It may be necessary to adjust the by-pass to the design of the
system. The boiler is delivered pre-set open 1/2 turn (1).
1
Key
1 Screwforby-pass
• Depending on the design of the system the by-pass may
need further adjustment. It is adjusted clockwise to close and
anti-clockwise to open. This should be balanced to ensure
that it operates if the pump output is adjusted.
Output/pressure curve Ultracom
2
12sxi / 18 sxi
60
50
40
30
20
10
0
500 1000 1500
B
1 2 3 4
Key
A Availablepressurebetweenheatingowandreturn(kPa)
B Heatingcircuitowrate(l/h)
1 Speed min, bypass closed
2 Speed max, bypass closed
3 Speed max, bypass middle position
4 Speed max, bypass opened
Output/pressure curve Ultracom
2
30sxi
60
50
40
30
20
10
0
500 1000 1500
B
1 2 3 4
Key
A Availablepressurebetweenheatingowandreturn(kPa)
B Heatingcircuitowrate(l/h)
1 Speed min, bypass closed
2 Speed max, bypass closed
3 Speed max, bypass middle position
4 Speed max, bypass opened
INSTALLATION