Alpha Alpha CombiMax 350 Installation And Servicing Instructions Download Page 9

9

Alpha CombiMax 350 and 600

4.4

FIT THE COMBIMAX - Figs. 7 and 8

1.

Locate the wall mounting frame over the top left hand panel of the combination boiler to ensure correct alignment.

2.

Drill five wall fixing holes (8 mm dia.) through the mounting frame (as shown in Fig. 7) and secure with the screws and
plugs provided.

3.

Hang the storage cylinder on the mounting frame, ensuring the top and bottom brackets on the store locate on the supports
on the frame (see Fig. 7). Pass the plastic security strap around the cylinder and secure in position (see Figs. 7 and 8).

4.

Connect the flexible hose to the expansion vessel and locate it in the space above the boiler to the rear, with the connection
to the left as shown in Fig. 8. Connect the expansion vessel hose to the connection on the top left hand side of the store.
CombiMax 600 only - Secure the vessel to the right side rear of the boiler frame with the two screws provided.

5.

Fit the side support bracket to the boiler in place of the boiler left hand side panel, securing at both top and bottom as
shown in Fig. 8 (remove the front screw from the top of the room sealed chamber to secure the top of the bracket).

6.

Fit the top support bracket (with two clips) to the top of the side support bracket and fit the bottom support bracket (with
four clips) to the bottom of the side support using the screws provided.

7.

Fit the left hand side panel, removed from the boiler, to the CombiMax by hooking the top of the panel over the brown trim
of the mounting frame and securing it at the bottom rear of the panel. Secure the panel to the top and bottom support
brackets using the screws provided.

Fig. 7

Fig. 8

4.5

FIT THE FLUE

Install the flue in accordance with the Installation instructions supplied with the boiler or flue.

4.6

CONNECT THE PIPEWORK - Fig. 9

1.

Thoroughly flush out all the water pipework.
Note: Ensure that all the plastic caps are removed from the boiler connections.

2.

Secure all the valves/fittings between the CombiMax and boiler as shown in Fig. 9. Use the washers supplied and ensure
the necessary fittings face the rear wall. Fit the union bends to the valves.

Notes: a. If soldering to the boiler union bends, ensure the bends are not connected to the valves, otherwise the internal

seals may be damaged.

b. Ensure the 22 mm isolating valve with the filter is fitted to the heating return connection as shown in Fig. 9.

c. Fit the pressure relief valve connection before the isolating valves.

3.

Connect the system pipework to the boiler.
Note: Do not forget that the heating system pressure relief valve discharge pipe must be routed clear of the boiler to a
drain in such a manner that it may be seen, but cannot cause injury to persons or property.

4.

Connect the discharge pipework from the temperature/pressure relief and expansion relief valves to the tundish supplied.
Note: This pipework must be installed as recommended in Unvented Hot Water Storage System, section 3.4.

Summary of Contents for Alpha CombiMax 350

Page 1: ...40 280 Range of Gas Fired Combination Boilers Building Regulations Certificate No ETC 03198 These instructions must be used in conjunction with the Installation instructions provided with the selected...

Page 2: ...te the hot water within the loop For full details contact Alpha Therm Ltd The CombiMax storage cylinder has the facility for fitting an electric immersion heater which must be obtained from Alpha Ther...

Page 3: ...r storage 50 C 350 model 600 model Reheat time for 70 of storage 350 model 600 model Min Clearances required for Servicing Top Bottom Sides Front Dimensions CombiMax Height 350 model Width 600 model W...

Page 4: ...r 5 DHW pump 6 Pressure reducing valve with filter and check valve 7 Drain point 8 DHW expansion relief valve 9 Store thermostat 10 DHW expansion vessel 11 Manual air vent 12 DHW temperature pressure...

Page 5: ...approximately 92 kg 350 model or 130 kg 600 model The CombiMax may be installed in any room or internal space although particular attention is drawn to the requirements of the current IEE WiringRegul...

Page 6: ...sistance created by each elbow or bend 0 8 m 1 0 m 1 4 m Maximum resistance allowed expressed as a length of straight pipe i e no elbows or bends up to 9 m up to 18 m up to 27 m Minimum size of discha...

Page 7: ...her with screws wall plugs and washers e Literature pack and DHW control knob label f Boiler conversion kit with restrictor spanner and boiler converted label 2 Unpack the boiler as per the Installati...

Page 8: ...Figs 5 and 6 as follows a Unscrew fitting A and discard the components A B and C as shown in Fig 5 Fig 5 Differential pressure sensor BEFORE modification b Screw fitting D supplied in the conversion...

Page 9: ...left hand side panel removed from the boiler to the CombiMax by hooking the top of the panel over the brown trim of the mounting frame and securing it at the bottom rear of the panel Secure the panel...

Page 10: ...ee Figs 9 and 10 and connect to the boiler terminal block via the grommet as shown in Fig 11 Refer to section 2 4 for connection details The boiler main terminal block can be removed by pulling it off...

Page 11: ...taps and allow water to flow until no air is present Turn off the taps Cover all electrical components beneath the CombiMax pump and then release the pump bleed screw until all the air has been vente...

Page 12: ...minutes and then the burner pressure will decrease slowly to its minimum until the hot water store reaches a temperature of approximately 56 C Check the burner pressure and that the burner goes out wh...

Page 13: ...biMax store Clean the filters within the pressure reducing valve and the mains water inlet valve 5 6 FINAL ASSEMBLY After completing the assembly of the boiler place the CombiMax front casing in posit...

Page 14: ...Refill the store refer to Commissioning section 5 1 8 4 DHW OUTLET THERMOSTAT See CombiMax Schematic illustration 1 Gain access as described in section 8 1 Ensure the electricity supply is isolated 2...

Page 15: ...water circuit by opening the mains water inlet valve 8 11 PRESSURE REDUCING VALVE CHECK VALVE See CombiMax Schematic illustration 1 Drain the CombiMax as described in section 8 2 2 Disconnect the unio...

Page 16: ...16 Alpha CombiMax 350 and 600 9 WIRING DIAGRAMS 9 1 COMBIMAX ILLUSTRATED WIRING DIAGRAM 9 2 COMBIMAX FUNCTIONAL FLOW WIRING DIAGRAM...

Page 17: ...stat TOD DHW expansion vessel 4 litre DHW expansion vessel 5 litre Temperature pressure relief valve 90 C 7 bar DHW outlet thermostat wax element Storage cylinder 35 litre Storage cylinder 60 litre Bo...

Page 18: ...mbiMax produced before February 1999 i e before Serial No A906 must not be fitted remote from the boiler 2 A CombiMax fitted remote has no casing Fig 13 Possible locations for the CombiMax in relation...

Page 19: ...IMUM CLEARANCES REQUIRED 12 5 WALL MOUNTING The wall mounting frame and security strap supplied are to be used to secure the CombiMax storage cylinder to the wall 12 6 CASING The casing components sup...

Page 20: ...er as shown in Fig 16 using 15 mm pipework The pipework supplied with the CombiMax can be utilised to provide the connections at the boiler and CombiMax 12 10 ELECTRICAL SUPPLY Connect the electrical...

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