1. Manuals
  2. Brands
  3. Alpha Manuals
  4. Boiler
  5. Alpha CombiMax 350
  6. Installation and servicing instructions

Alpha CombiMax 350 Installation And Servicing Instructions

Unvented hot water store for use with the alpha 240/280 range of gas fired combination boilers
Hide thumbs Also See for Alpha CombiMax 350:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instructions for Using

Installation and Servicing

Instructions
Alpha CombiMax 350 and 600
Unvented Hot Water Store
for use with the
Alpha 240/280 Range of Gas Fired Combination Boilers
For Technical help or for Service call ...
ALPHA HELPLINE
Tel: 0870 3001 964
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
These instructions must be used in conjunction with the Installation instructions provided
with the selected combination boiler.
Building Regulations
Certificate No. ETC 03198
Leave these instructions with the User

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Alpha CombiMax 350 and is the answer not in the manual?

Questions and answers

Related Manuals for Alpha Alpha CombiMax 350

Summary of Contents for Alpha Alpha CombiMax 350

  • Page 1: Installation And Servicing

    Instructions Alpha CombiMax 350 and 600 Unvented Hot Water Store for use with the Alpha 240/280 Range of Gas Fired Combination Boilers For Technical help or for Service call ... ALPHA HELPLINE Tel: 0870 3001 964 Nepicar House, London Road,...

  • Page 2: Table Of Contents

    12 Appendix 1 (remote location) ..... 18 INTRODUCTION The CombiMax is a wall mounted unvented secondary hot water storage cylinder for use with the Alpha 240/280 range of gas fired combination boilers. Two models are available - the CombiMax 350 with a 35 litre capacity and the CombiMax 600 with a 60 litre capacity.

  • Page 3: Technical Data

    230/240 V ~ 50 Hz Supply 230/240 V ~ 50 Hz External Fuse External Fuse 10 A Power Consumption 90 W Power Consumption 2 kW ELECTRICAL CONNECTIONS Note: This Appliance Must Be Earthed Boiler terminal block CombiMax terminal block Alpha CombiMax 350 and 600...
  • Page 4 13. DHW outlet thermostat 6. Pressure reducing valve with filter and check valve 14. Storage cylinder 7. Drain point 15 Boiler flow control regulator 8. DHW expansion relief valve 16 Non return valve 17 Immersion heater boss Alpha CombiMax 350 and 600...

  • Page 5: Installation Information

    Wiring external to the boiler must be in accordance with the current IEE Wiring Regulations (BS 7671). Note: If an immersion heater is to be fitted, this must be supplied by Alpha Therm Ltd. and be installed as per the instructions supplied with the kit.
  • Page 6 300 mm 500 mm max. minimum from appliance 100 mm max. 70 mm min. 300 mm Ground level minimum Gulley if Metal discharge pipe (D2) from available tundish with continuous fall Fig. 1a Alpha CombiMax 350 and 600...
  • Page 7 Literature pack and DHW control knob label. Boiler conversion kit with restrictor, spanner and boiler converted label. Unpack the boiler as per the Installation instructions supplied with the boiler. CLEARANCES REQUIRED - Fig. 2 Fig. 2 Alpha CombiMax 350 and 600...
  • Page 8 Re-assemble the differential pressure sensor into the boiler in reverse order. Note: After converting the boiler, fit the label supplied in the conversion kit to the inside of the hinged cover so that it can be seen when the cover is lowered. Alpha CombiMax 350 and 600...
  • Page 9 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. Alpha CombiMax 350 and 600...
  • Page 10 Connect the clock cable to the 'Ext Prog' terminals N, L and S/L ensuring the cable is secured using the clamping bush supplied. If a secondary circulation kit and/or an Alpha immersion heater is fitted, refer to the instructions supplied with the kit.
  • Page 11 Alpha 240P and Alpha 280P Pilot and Burner Viewing Window Clock (if fitted) THERMOSTAT THERMOSTAT SELECTOR Domestic Indicator Central Selector System Heating Hot Water Switch Control Neons Pressure Thermostat Thermostat Gauge set at maximum Fig. 12a Alpha CombiMax 350 and 600...
  • Page 12 56°C. Check the burner pressure and that the burner goes out when the store is satisfied. Central heating mode The boiler will not operate in the central heating mode until the CombiMax store is satisfied. Alpha CombiMax 350 and 600...

  • Page 13: Routine Servicing

    Inspect and clean, if required, the filter and cartridge in the pressure reducing valve and cartridge in the expansion relief valve fitted to the store. Check the charge in the domestic hot water expansion vessel and re-pressurise if necessary. Check the charge only when the pressure in the mains supply is zero. Alpha CombiMax 350 and 600...

  • Page 14: Component Replacement

    Remove the outlet thermostat as described in section 8.4. Disconnect the valve pipework unions and remove the valve from the store. Re-assemble in reverse order with a new valve. Refill the store (refer to Commissioning, section 5.1). Alpha CombiMax 350 and 600...
  • Page 15 10. Cut and release the plastic security strap and lift the cylinder upwards to disengage it from the mounting frame. Pull the cylinder forward and remove it. 11. Re-assemble in reverse order with a new cylinder, using new seals and new plastic security strap supplied. 12. Refill the store (refer to Commissioning, section 5.1). Alpha CombiMax 350 and 600...

  • Page 16: Wiring Diagrams

    WIRING DIAGRAMS COMBIMAX ILLUSTRATED WIRING DIAGRAM COMBIMAX FUNCTIONAL FLOW WIRING DIAGRAM Alpha CombiMax 350 and 600...

  • Page 17: Short Parts List

    Storage cylinder - 35 litre 0001077 Item 14 Storage cylinder - 60 litre 0001107 Item 15 Boiler flow control regulator Both 0001059 Item 16 Non return valve Both 0001048 Tundish Both 0001044 11 FAULT FINDING Alpha CombiMax 350 and 600...

  • Page 18: Appendix 1 (Remote Location)

    12 APPENDIX 1 12.1 INTRODUCTION The Alpha CombiMax has been designed to fit onto the left hand side of an Alpha 240/280 boiler. However, it is now possible (using a CombiMax 350 or 600 produced after February 1999, i.e. from Serial No. A906) to install it up to a distance of 1 metre from the boiler in the positions shown in Fig.
  • Page 19 The casing components supplied with the CombiMax cannot be used when it is fitted in a remote location from the boiler. 12.7 DHW EXPANSION VESSEL Fit the expansion vessel near the top of the storage cylinder using the flexible hose supplied. See Fig. 15. Alpha CombiMax 350 and 600...

  • Page 20: Filling Loop

    With the CombiMax in a remote location from the boiler, the filling loop facility supplied with the boiler cannot be used as designed. The filling loop should be discarded and its connections on the cold mains inlet valve (CombiMax) and heating return valve (boiler) sealed, using ½" BSP threaded caps (not applicable to Alpha 240X). See Fig. 16. 12.9 CONNECTING PIPEWORK The boiler and CombiMax must be connected together as shown in Fig.

This manual is also suitable for:

Combimax 600

Table of Contents