Table of Contents
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TRANSIT SCREW
MAIN POWER SUPPLY
CABLE ENTRY
LIFTING AND PLUMBING
ACCESS EACH SIDE
EXTERNAL CONTROLS
(AND IMMERSION
HEATER CABLE ENTRY)
PLUMBING ACCESS
EACH SIDE
140
The code of practice for the installation, commissioning
& servicing of central heating systems
BAXI POTTERTON
BROWNEDGE ROAD
BAMBER BRIDGE
PRESTON PR5 6SN
(Technical Helpline) TEL 0870 606 0955
(Service) TEL 0870 606 0933 FAX 0870 606 0966
(Spares) TEL 0870 6060454
"Powermax" is a trademark of Baxi Group Ltd
Publication No. P443 - 12/05
AUTO VENT ACCESS
TOP PANEL
FRONT PANEL
(2 SCREWS)
PLINTH
(4 SCREWS)
(2 SCREWS)
Guide to Panel Removal
Guide to panel removal
Auto vent access
Top panel
Main power supply
cable entry
External controls
cable entry
Lifting and plumbing
access each side
155x x
Upper front panel and
retaining screw
Lower front panel
(2 screws)
Plinth (4 screws)
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Related Manuals for PowerMax OV 140 P Series
Summary of Contents for PowerMax OV 140 P Series
- Page 1 (Technical Helpline) TEL 0870 606 0955 (Service) TEL 0870 606 0933 FAX 0870 606 0966 (Spares) TEL 0870 6060454 External controls cable entry “Powermax” is a trademark of Baxi Group Ltd Lifting and plumbing access each side Plinth (4 screws) Publication No. P443 - 12/05...
- Page 2 I N S T R U C T I O N S TO BE LEFT WITH BOILER - READ THESE INSTRUCTIONS BEFORE INSTALLING OR LIGHTING THE BOILER 140 and 155 x x POWERMAX OPEN VENT MODELS : OV 140 P OV 155x P WITH FITTED PUMP...
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Page 3: Table Of Contents
Specification for low pressure gas Specification for installation of gas hot Document G3. The above requirements do not pipework in domestic premises water supplies apply to a Powermax installed as part of an open BS5440:Part 1:1999 BS5449:1990 vented system. Specification for installation of flues Specification for forced circulation hot... -
Page 4: Natural Gas Supply
BLENDING VALVE including airing cupboards, are given in BS6798. Specific COLD MAIN requirements for Powermax installations are given below. The compartment must be ventilated at high and low level in accordance with BS5440:Part 2 and Section 7 3. NATURAL GAS SUPPLY of these instructions. -
Page 5: Flueing Options
(25in When combustion air is drawn from a roof space or The efficient operation of Powermax will naturally give rise to compartment or duct, that area must be effectively sealed from condensation in the flue gases and pluming will be visible the remainder of the dwelling. - Page 6 P231/232/233 P234 Typical routeing of To connect the Powermax to the vertical terminal a kit Part No. extended balanced flue P246 is required. This contains a range of extension air/flue pipes and bends to enable the terminal to be sited up to 2.5m from the appliance.
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Page 7: Ventilation Requirements
7. VENTILATION REQUIREMENTS 9. INSTALLING THE APPLIANCE a When the appliance is installed in a room or habitable Guidance on where to locate the appliance is given in Sections internal space, there are no specific ventilation requirements. 5, 6 and 7. In some instances it will be advantageous to b When the appliance is installed in a compartment it is pre-plumb pipework or to pre-fix terminal, air/flue pipes and duct. - Page 8 Measure and cut flue pipes with a hacksaw to a length Optional immersion heater as illustrated in fig 9.5. Measure the wall thickness and add 10mm to the flue pipe and 120mm to the air inlet Refer to page 23 for detailed wiring instructions. pipe from datums ‘AA’.
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Page 9: Electrical Connection To The Appliance
27, connect the switched wire to terminal 28 and the neutral to N3. To provide time to control for models without the built-in programmer, we recommend using the Powermax ‘Diadem’ analogue programmer kit P4230. To install Fig. 10.4 Terminal block remove the slave plug –... -
Page 11: Water Supply / Primary System
22mm OD (copper) or 25mm OD (Blue MDPE) will provide an adequate flow rate to the system. Powermax is not recommended for use where the prevailing mains pressure is below 1.0 bar. - Page 12 To ensure that the correct amount of inhibitor is used add the satisfactory for 5 radiator systems. The table below indicates volume of the Powermax thermal store to your radiator and the size of vessel required for systems of different water pipework calculations as shown.
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Page 14: Functional Flow Diagrams
140 / 155x Functional Flow Diagram 1 P Model with remote programmer connected NB: Water level switch is omitted on Open Vent models. 140 / 155x Functional Flow Diagram 2 CP model with built-in programmer... -
Page 15: Commissioning
12. COMMISSIONING Fig. 12.1 WARNING: DO NOT ATTEMPT TO START THIS APPLIANCE UNLESS THE THERMAL STORE (PRIMARY CIRCUIT) HAS BEEN FILLED WITH WATER Sealed Primary System With no water pressure on the system , check and if necessary adjust expansion vessel pressure to 0.6 to 0.7 bar (8 to 10 psi) N.B. - Page 16 Advise that the appliance should be serviced regularly. d Explain that the correct MAINS BURNER LOCK POWERMAX operating position for the 3-way switch is the down TIMED position which enables HOT WATER and HEATING to be obtained when required. The up Fig.
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Page 17: Servicing Instructions
Ensure the test point is FULLY GASTIGHT. Do not substitute 28mm (1 ") diameter brush. Remove sump ensuring it any other screw for the special Powermax screw is clear of gauze in flue collector. Vacuum away deposits (Part No. P690). - Page 18 Fig. 13.1 Component Exchange Procedures Fig. 13.3 ELECTRODE GAP 3.0 to 3.5 mm General Notes Isolate gas and electricity supplies. To gain access remove front panel and top cover as described in section 9 and fig 9.1. Components are replaced in reverse order unless otherwise stated.
- Page 19 Carefully replace the new capillary tubing and phial, DHW heat exchanger (H/E) ensuring the latter is retained with the spring clip. Hold thermostat in position and replace retaining nut. The H/E, blending valve, flow-switch tee and the strainer fitting Reconnect leads. can be removed from the boiler as a sub-assembly for ease of Programmer Fig.12.2...
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Page 20: Short List Of Spare Parts
SHORT LIST OF SPARE PARTS 16/34 86/88 79/92 Part Old Part Description Number Number Number Number 40/96/101 P656 Service Gasket Set E39 647 P512 Rocker Switch (on-off position) Arco C1400 AB 387 154 P513 Rocker Switch (3 position) Arco-electric C1420 AB 387 155 P4231 Programmer –... -
Page 21: Installing An Extended Balanced Flue
17. INSTALLATION INSTRUCTIONS FOR EXTENDED BALANCED FLUE SYSTEMS Note: If air/flue pipes run horizontally leftwards, align Installing Terminal Assembly bends and fit the first pipe length to the left, before securing clamp with 70mm long screw. Note: The flue terminal must be installed horizontally. Move appliance to its final position. - Page 22 Assembling Air/Flue Pipes Fig. 17.5 Protective outer duct Any route can be taken by the air/flue pipes Note: THE FLUE PIPES MUST BE ASSEMBLED WITH THE PLAIN END OF PIPE (OR BEND) NEAREST THE APPLIANCE AND THE FEMALE SOCKET END FURTHEST FROM APPLIANCE.
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Page 23: List Of Extended Flue Components
IMPORTANT – NOTICE TO INSTALLERS Description Part No: Air/Flue pipe 3.0m P300 socketed one end The sockets in Powermax Air/Flue pipes Air/Flue pipe 2.0m P354 socketed one end are manufactured to close tolerances to Air/Flue pipe 1.5m P355 socketed one end enable secure joints to be made with Air/Flue pipe 1.0m... -
Page 24: Optional Immersion Heater
WIRING REGULATIONS AND BE WIRED THROUGH A Should the immersion heater require replacement use only the DOUBLE POLE ISOLATING SWITCH OR A SUITABLE Powermax spare part P3223. CONTROLLER. THE HEATER MUST BE FULLY IMMERSED AND NOT BE SWITCHED ON DRY. SECURE CABLE GRIP USING ONLY SCREWS PROVIDED.
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Questions and answers
What should the pressure show on the boiler pressure guage
The recommended pressure reading on the PowerMax OV 140 P Series boiler is approximately 3.8 to 4.4 mbar for the 140 model. For the 155x model, the recommended range is 4.8 to 5.5 mbar.
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