Utility and utility system condensing oil boiler range (12 pages)
Summary of Contents for Grant VortexBlue VTXBF21
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Grant UK VortexBlue Internal, Internal System, External, Combi and External Combi Blue Flame Oil Boiler Range Supplementary User, Installation and Servicing Instructions UK | DOC 0108 | Rev 2.5 | June 2018...
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This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improvement. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK) Limited, the author or others involved in its publication.
Contents User Instructions Commissioning VortexBlue Internal, Internal General System Boilers and External Modules Ignition Electrode Setting VortexBlue Combi Boilers (Internal and Air Damper Adjustment External models) Air Adjuster Disc - 15-21 model only Control Panels Servicing Introduction General Update to Main Installation Instructions General Burner Low NOx Technology...
Mains power to the boiler is switched on water cylinder fitted). DEMAND Demand for heating (and/or hot water) from the For guidance on how to use your Grant VortexBlue Internal boiler (or heating system controls. Internal System boiler) please refer to the User Instructions for the OVERHEAT Boiler overheat thermostat has operated and Grant Vortex Internal boiler.
1.3 Control Panels Figure 1-1: VortexBlue Internal Control Panel Figure 1-2: VortexBlue Internal System Control Panel Figure 1-3: VortexBlue External Module Control Panel User Instructions Page 05...
This is a 'momentary' or non-latching switch that cannot be lef t set to 'ON'. The boiler will automatically revert to normal The new Grant VortexBlue range of high efficiency low NOx oil fired operation when 15 minutes have elapsed since it was last boilers consists of 15 models including Internal, Internal System operated.
3 Technical Data 3.1 Boiler Technical Data 3.1.1 Internal, Internal System and Ex ternal Table 3-1: Internal, Internal System and External Technical Data Internal and Internal System Ex ternal Units 15-21 21-26 26-36 15-21 21-26 26-36 Output (Kerosene) 51,200 - 71,700 - 88,700 - 51,200 -...
* Factory settings: 15-21 - 21kW, 21-26 - 26kW, 26-36 - 31.5kW, Combi 36 - 31.5kW When setting the 15-21 to 15kW, the burner air adjuster disc (Grant UK product code: RBS215) must be fitted and positioned to disc setting B. Refer to Section 6.4.
3.4 Boiler Dimensions All dimensions in the following diagrams are in millimetres. Safety valve Cold fill PLAN VIEW Flow - 22mm push-fit Flue centre line Flue spigot Alternative condensate drain outlets FRONT VIEW RIGHT SIDE VIEW LEFT SIDE VIEW Figure 3-4: VortexBlue Internal 21, Internal 26, Internal System 21 and Internal System 26 dimensions PLAN VIEW Safety valve Flow - 28mm push-fit...
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3 pre-cut holes 76 mm dia. in base of boiler enclosure Plan View 21 and 26kW: A = 804 1005 36kW: A = 824 Pre-cut hole for side flue exit if required 4 pre-cut holes 50 mm dia. both sides Figure 3-6: VortexBlue External 21, External 26 and External 36 dimensions PLAN VIEW INTERNAL DRAIN...
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PLAN VIEW INTERNAL DRAIN TRAP EXIT (LEFTSIDE PANEL ONLY) RIGHT SIDE VIEW REAR VIEW LEFT SIDE VIEW Figure 3-8: VortexBlue Internal Combi 36 dimensions 2 pre-cut holes in base of boiler enclosure Side flue exit if required 115mm dia. Combi 21e, 26e Combi 36e Plan View Pre-cut hole 75 x 150mm in...
This will not be covered by the boiler product guarantee. radiator. There is no facility in the Grant VortexBlue Internal and Internal Where the frost thermostat is installed outside the house (to protect System boilers for the fitting of a plug-in timer or programmer.
There is no facility in the Grant VortexBlue External Module for the drop down to gain access to the top of the panel. fitting of a plug-in timer or programmer.
6.4 Air Adjuster Disc – 15-21 models only If the 15-21 boiler is to be down-rated to the minimum output of 15kW, an air adjuster disc (Grant UK product code: RBS215) must be fitted as described below. This disc is NOT supplied with the boiler but is available free-of- charge by contacting Grant UK.
7 Servicing 7.1 General To service the boiler and burner follow the procedure given in the Section 11 of the Vortex boiler (or Vortex Combi boiler) Installation Instructions supplied with the boiler. Section 7: Servicing Page 23...
MUST be fit ted. Refer to Section 10 (spare parts). All Grant VortexBlue boilers are fitted with a Riello RDB BLU blue flame burner. This has been designed to operate with reduced NOx emissions that meet the forthcoming European Ecodesign emissions regulations.
8.3 Digital Control Box 8.3.2 Operating Status Indication From start up the operating status of the burner is displayed via the The digital control box fitted to this burner has several different reset push-button indicator LED on the control box. Refer to Table features compared to the more commonly used 'analogue' control 8-3.
8.3.5 Removal of Control Box 8.4 Burner Operation 8.4.1 Burner Operating Times WARNING Table 8-6: Burner operating times Value Symbol Description Before removing the control box from the burner, or opening (seconds) the control box cover, isolate the electrical supply to the Standby: the burner is waiting for a heat request boiler.
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8.4.3 Spark Ignition Duration 8.4.6 Post Purge Function The 'pre-ignition' spark time starts 2 seconds before the oil valve This function allows air flow through the burner for a pre-set time opens (the start of the 5 second 'safety time' period). after the burner flame is switched off (on the loss of demand for the burner to fire).
9 Fault Finding 9.1 Burner Fault Indication Whenever a burner lockout occurs the cause is displayed via the reset push button indicator LED on the control box. The colour, sequence and speed of the indicator LED flashes identify the specific lockout type and the possible causes are listed in Table 9-1. Table 9-1: Burner fault indication Lockout description Lockout time...
Internal 26, Internal 36, Internal Internal Internal System 21, Description System 26 System 36 Riello product code Grant UK product code Ex ternal 21 Combi 26 Combi 36 Combi 21 Gasket - refer to item 34 ü ü ü 4-pin connector ü...
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