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Grant Combi 90 V3 User, Installation & Servicing Instructions

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See also: User, Installation and Servicing Instructions , Installer and User Manual
Part No. IRL 005 Rev: 0 Jan 07
USER, INSTALLATION
and

SERVICING INSTRUCTIONS

Outdoor Combi 90 V3
Combi Max
Outdoor Condensing Combi 26 and 36
For use with Kerosene or Gas Oil (Condensing Combi Kerosene only)
After installing the boiler leave these instructions with the User
This appliance is deemed a controlled service and specific regional statutory
requirements may be applicable

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Summary of Contents for Grant Combi 90 V3

  • Page 1: Servicing Instructions

    Part No. IRL 005 Rev: 0 Jan 07 USER, INSTALLATION SERVICING INSTRUCTIONS Outdoor Combi 90 V3 Combi Max Outdoor Condensing Combi 26 and 36 For use with Kerosene or Gas Oil (Condensing Combi Kerosene only) After installing the boiler leave these instructions with the User...

  • Page 2: Table Of Contents

    LIST OF CONTENTS Section Subject Page Outdoor Combi V3 and Combi Max user instructions Outdoor Condensing Combi user instructions Outdoor Combi 90 V3, Combi Max and Condensing Combi User instructions Technical information General boiler information Boiler installation Fill and vent the system...

  • Page 3: Outdoor Combi V3 And Combi Max User Instructions

    1 - OUTDOOR COMBI 90 V3 and COMBI MAX USER INSTRUCTIONS About your Combi V3 or Combi Max Boiler Useful tips Your Grant Combi boiler is fully automatic when the To ensure that the hot water performance is not boiler On/Off switch is set to ON, and will provide...

  • Page 4: Outdoor Condensing Combi User Instructions

    3 Boiler heating thermostat - Controls the temperature of the water leaving the boiler to the central heating system. Operation of this control does not affect the temperature of the hot water flowing to the taps. Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 5: Outdoor Combi 90 V3, Combi Max And Condensing Combi User Instructions

    3 - OUTDOOR COMBI 90 V3, COMBI MAX & CONDENSING COMBI USER INSTRUCTIONS Fig. A - Boiler controls (Outdoor Combi 90 V3 and Combi MAX) Fig. B - Boiler controls (Outdoor Condensing Combi) Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 6 3 - OUTDOOR COMBI 90 V3, COMBI MAX & CONDENSING COMBI USER INSTRUCTIONS 8 If the heating system water pressure falls below 0.2 bar the boiler low pressure cut-out switch will activate and an 1 Ensure that - There is sufficient fuel in the supply tank and Lighting your boiler (see Fig.
  • Page 7 3 - OUTDOOR COMBI 90 V3, COMBI MAX & CONDENSING COMBI USER INSTRUCTIONS The boiler is fitted with a safety valve to release excess pressure 4 Overheat thermostat - Your boiler is fitted with a safety from the system. If water or steam is emitted from the end of the...

  • Page 8: Technical Information

    4 – BOILER TECHNICAL INFORMATION Boiler technical data - Outdoor Combi 90 V3 and Outdoor Combi Max boilers Boiler water content litre Model Combi 90 V3 Combi Max * Weight (dry) Max. heat input (Kerosene) 27.6 36.8 Btu/h 94 200...
  • Page 9 Oil connection 1/4" BSP Male (on end of flexible fuel line) * Weight includes burner but excludes flue ** Based on expansion vessel charge and initial cold system pressure of 0.5 bar Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 10 1.00/80˚EH 0 - 1 3.10 51.5 12.0 Outdoor Combi 90 V3 & Outdoor Combi MAX Boilers using Class D gas oil - High level flue only Combi 90 V3 (Riello RDB1 burner) Heat Output Net Heat Input Net eff. *...
  • Page 11 When this test point is used please note the following: 1 . The test point is for CO and smoke readings only. 2. The temperature and efficiency readings must be taken from the flue terminal. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 12 Installer to investigate the cause. Water schematic of boiler - Outdoor Combi 90 V3 and Outdoor Combi Max Fig. 2 Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 13 4 – BOILER TECHNICAL INFORMATION Boiler dimension - Outdoor Condensing Combi Fig. 3 4.10 Water schematic of boiler - Outdoor Condensing Combi Fig. 4 Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 14: General Boiler Information

    Alternatively a remote programmer, located in a convenient position for the User, can be connected to the boiler to control If a high-level flue system is used, the Outdoor Combi 90 V3 the operating times of both the central heating and domestic hot and Combi Max models can be adapted for use on Class D gas water.
  • Page 15 5 - GENERAL BOILER INFORMATION Regulations to comply with Some Regional statutory requirements may deem this Installation of a Grant Combi boiler must be in accordance with appliance to be a 'controlled service'. Where this is the the following recommendations:-...
  • Page 16 Head A Maximum pipe run (m) 10mm OD pipe 12mm OD pipe Fig. 5 - Single pipe system Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 17 (omitting the non-return valve) as shown in Fig. 7. Refer to the manufacturers instructions supplied with the Tiger Loop. The Tiger Loop must be mounted vertically. Fig. 7 - Tiger loop system Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 18 By-pass screw using an hexagonal key. Fig. 9 - RDB pump Oil inlet connection Pressure adjuster Return connection Vacuum gauge connection By-pass screw Solenoid Pressure gauge connection Supply to nozzle Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 19 To prevent internal corrosion of the boiler water jacket, the return water temperature must be maintained above 55˚C for the Combi 90 V3 and Combi Max and 40˚C for the Condensing Combi. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 20 Horizontally from a terminal on the same wall Directly below an opening, air brick, window etc. From a vertical drain pipe or soil pipe From an internal corner M From an oil storage tank (not shown) 1800 Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 21 8 The mains water connection to the boiler must be the first harmful effects of scale. connection from the mains supply. Problems caused by the build-up of limescale are not covered under the terms of the warranty. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 22 85˚C 6 Provision should be made to replace water lost from the for the Combi 90 V3 and Combi Max and 75˚C for the system. This may be done manually (where allowed by the Condensing Combi models.
  • Page 23 See Fig. 13. A short length of flexible pipe is supplied connected to the outlet of the trap. The end of this flexible pipe should be connected to the condensate discharge pipe. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 24 OFF. shower, etc.) the water flow operates the diverter valve and in Combi 90 V3 and Combi Max - If the Grant TCR programmer turn the flow switches. The pump starts and the primary water...
  • Page 25 The boiler should not be allowed to operate with return the atmosphere through the flue. temperatures of less than 40˚C when the system is up to operating temperature. Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 26: Boiler Installation

    The terminal has been factory lubricated. Take care not to dislodge or damage the red seals. Fig. 15 Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 27 Up to 1.5 l/h of condensate can be produced in a conventional flue system. Combi 90 V3 and Combi Max only - When using gas oil the flue must terminate a minimum of 2 metres above outside ground level.
  • Page 28 6 - BOILER INSTALLATION Fig. 16 - Outdoor high level flue (Green system) Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 29 1 The pipework connections are housed within the insulated Combi 90 V3 and Combi MAX - see Figs. 1 and 17 compartment at the rear end of the boiler casing (opposite end to the burner). These connections are accessed by removing the rear and top panels of the enclosure.
  • Page 30 A second drain tap is fitted on the primary store of the Condensing Combi boilers. 2 Carefully manoeuvre the boiler into position. Complete the water connections. Fig. 18 - Outdoor Condensing Combi Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 31 Note: The terminal numbers are marked on the top cover of the plug. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 32 Measure a maximum of 350 mm of cable between the plug and the cable clamp below the control panel and tighten the Pipe thermostat connection Grant Outdoor Combi boilers are supplied with a factory fitted cable clamp to secure the cable. pre-set frost protection thermostat. In order to prevent...
  • Page 33 Remove the factory fitted air inlet spigot adaptor (item 6, above) from the air intake on the top right hand side of the burner and fit the grey plastic air inlet grille in its place. Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 34: Fill And Vent The System

    Fill the system 1 To vent the boiler - The Combi 90 V3 and Combi Max Water may be released from the system by manually boilers are fitted with a single automatic air vent on the top operating the safety valve until the system design pressure of the boiler.

  • Page 35: Commissioning

    8 - COMMISSIONING Fig. 21 - Boiler controls (Outdoor Combi 90 V3 and Combi MAX) Fig. 22 - Boiler controls (Outdoor Condensing Combi) 1 Check that the water system has been vented and pressurised, and there are no leaks. It is important that the following commissioning procedure 2 Check that all fuel line valves are open.
  • Page 36 The boiler pump in the adjusting the radiator lock shield valves. Start with the Combi 90 V3 and Combi Max or the Hot Water pump in the radiator nearest the boiler and adjust the valves to achieve Condensing Combi will operate and the burner should light the required temperature drop across each radiator.

  • Page 37: Boiler Handover

    'OFF', isolate the electricity supply and close the fuel supply valve. Allow the boiler to cool. The data label on the inside of the case side panel will indicate the fuel used and nozzle fitted. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 38 Note: If two flexible pipes are connected to the burner, identify (mark if necessary) which is the inlet and return if they are to be disconnected. Fig. 23 - Outdoor Condensing Combi components Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 39 22 mm condensate outlet. Replace the Check that the boiler condensate outlet is unobstructed. turbulators. Clean if necessary. IMPORTANT: The condensate trap and condensate outlet must be checked on every service and cleaned as necessary. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 40 (R/H side of burner) and remove the cover. Inspect the fan and housing and clean as necessary. Replace the cover and re-fit the plastic grille. IMPORTANT: The electrode settings given above MUST be observed Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 41: Boiler Components

    11 - BOILER COMPONENTS Fig. 30 - Combi 90 V3 and Combi Max components/connections A Cold water inlet isolating valve 1 Diverter valve - cold water inlet Main Components Connections C Lower pump union 2 Diverter valve -primary inlet D Upper pump union - isolating valve...
  • Page 42 Primary flow to plate heat exchanger Non return valve (x 2) Primary return to boiler Cold water inlet manifold Hot water flow to blending valve Hot water outlet from blending valve Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 43: Wiring Diagrams

    12 - WIRING DIAGRAMS 12.1 Control panel wiring diagram - Outdoor Combi 90 V3 and Combi Max Refer to Section 6. Note: If a single channel timer is used, a link must be fitted between terminals 2 and 3. If a room thermostat is fitted, it must be wired in series with the time control and the boiler terminal S/L 1.
  • Page 44 12 - WIRING DIAGRAMS 12.2 Functional flow wiring diagram - Outdoor Combi 90 V3 and Combi Max 12.3 Typical connection of external timer - Outdoor Combi 90 V3 and Combi Max only Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 45 Colour code: Br - Brown, R - Red, Bl - Blue, Y - Yellow, G/Y - Green/Yellow, Blk - Black, Or - Orange 12.5 Functional flow wiring diagram - Outdoor Condensing Combi Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 46 12 - WIRING DIAGRAMS 12.6 Typical connections of external timer - Outdoor Condensing Combi only 12.7 Connection of typical two - channel programmer - Outdoor Condensing Combi only Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 47: Fault Finding

    1 - COMBI V3, COMBI MAX & CONDENSING USER INSTRUCTIONS 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 48 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 49 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 50 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 51 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 52 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 53 13 - FAULT FINDING 13 - FAULT FINDING Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 54: Burner Spares

    3005788 Cover 3008649 11 Photocell 3008646 Control box assembly 3008652 12 Capacitor 4.5 gF 3002837 Solenoid lead 3008851 13 Seal kit 3008878 Cover 3008879 14 Needle valve 3007582 Air intake cover Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 55 14 - BURNER SPARE PARTS 14 - BURNER SPARE PARTS Burner Heads Outdoor Combi 90 V3, Combi Max and Condensing Combi...

  • Page 56: Health And Safety Information

    Take care to prevent clothing, especially underwear, from becoming contaminated with oil. Do not put oily rags or tools in pockets, especially trouser pockets. Have first-aid treatment at once for an injury, however slight. Do not inhale any vapours from mineral oils. Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 57 1 - COMBI V3, COMBI MAX & CONDENSING USER INSTRUCTIONS 16 - DECLARATION OF CONFORMITY We declare that the Grant Outdoor Combi Range of Oil Boilers equipped with Riello RDB burner approved to EN 267: 1991 satisfy the requirements of the following European Directives:...
  • Page 58 Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 59 Outdoor Combi 90 V3, Combi Max and Condensing Combi...
  • Page 60 All goods sold are subject to our official Conditions of Sale, a copy of which may be obtained on application. © Grant Engineering (Ireland) Limited 2006. No part of this manual may be reproduced by any means without prior written consent.

This manual is also suitable for:

Combi 26Combi maxCombi 36

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