BOILER CONNECTIONS
F | 5 |
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| CAUTION: ISOLATE TH E MAI NS GAS |
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| SUPPLY BEFORE STARTING ANY WORK |
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| AND OBSERVE ALL RELEVANT SAFETY |
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| PRECAUTIONS. |
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| GAS AND WATER CONNECTIONS: |
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| A - CH flow (22mm), B - CH return (22mm), |
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| C - Gas inlet (22mm), D - Mains water inlet |
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| (15mm), E - DHW outlet (15mm) |
| A | E | 5. Lower the control panel into the service |
| position by removing the screw (F) from the | ||
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| B | retaining bracket. |
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| 6. Make connections to the heating system. |
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| Connect the gas supply to the boiler gas |
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| cock 22mm compression. |
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| Connect mains water in and DHW out. |
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| 7. Connect the expansion vessel flexible |
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| pipe to the hydraulic manifold situated left of |
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| the pump. It is necessary to remove and |
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| discard the gray plastic blanking plug (G) |
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| from the pressure vessel connection at the |
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| hydraulic manifold before securing the |
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| expansion vessel flexible pipe (H) in place |
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| with the wire retaining clip ( I ) . |
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| 8. Connect the pressure relief drain pipe to |
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| H | 15mm compression joint (J) using the |
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| compression nut and olive supplied in the |
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| hardware literature pack. |
INSTALLATION
7
GI
J
6
C
D
H
A E C D B
22mm 15mm 22mm 15mm 22mm
I 
H
22
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
BOILER CONNECTIONS
