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Worcester-Bosch GREENSPRING CWi47 Manual

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Commissioning
GREENSPRING CWi47 – 6 720 646 322 (2015/04)
▶ Loosen screw inside left test point fitting (do not remove)
and connect gas pressure gauge tube to test point.
Fig. 55 Gas pressure test point (left test point)
Static Pressure Test
▶ Turn gas supply back on.
▶ Record static gas pressure reading in Table 16.
Operating Pressure Test
▶ Press ON/OFF button to turn off the appliance.
▶ Press and hold "Program" button and press ON/OFF button
to turn appliance ON (Fig.
56).
Fig. 56 Gas setup mode
▶ As soon as '188' is displayed, release "Program" button
, and the display reads P2.
▶ Press or until P1 appears.
For inlet gas pressure adjustment see values in Table 17:
▶ Turn on high volume of hot water flow (at least 15 l/m) and
burner will light. If heater display reverts to P2, open more
hot water draw off points to allow sufficient flow. Press
until P1 reappears on the display.
▶ Operate all other gas appliances on same gas supply at
maximum output.
▶ Record lowest operating gas pressure reading in Table 16.
Gas pressures lower than 20 mbar for Natural Gas or 27-
30/37 mbar for LPG will result in reduced temperature rise
to the hot water being used, reduced hot water volume,
possible error code faults and must be corrected.
Check gas pipes dimensions.
Static Gas Pressure Reading
Pressure: ___________________ Date: ___________
Operating Gas Pressure Reading
Pressure: ___________________ Date: ___________
Table 16
6720608920-16.1AL
NOTE: While in this mode, the appliance will
run constantly at maximum output and allow
maximum water flow.
Gas type NG Propane
mbar 20 37
Table 17
6720608920-17.1AL
+
+
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