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220674B.03.97
Installation Instructions
To b e l e f t w i t h t h e u s e r
120
G.C. No. 47 313 13
Fanned Flue Combination Boiler
This is a Cat I
appliance
2H
Hepworth Heating Ltd.,
Customer Services:
Nottingham Road, Belper, Derbyshire. DE56 1JT
Tel: (01773) 828100
General/Sales enquiries:
Fax: (01773) 828070
One Contact Total Service
Tel: (01773) 824141 Fax: (01773) 820569
Supplied By www.heating spares.co Tel. 0161 620 6677
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Summary of Contents for Glow-worm Swift flow 120
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Page 1: Installation Instructions
220674B.03.97 Installation Instructions To b e l e f t w i t h t h e u s e r G.C. No. 47 313 13 Fanned Flue Combination Boiler This is a Cat I appliance Hepworth Heating Ltd., Customer Services: Nottingham Road, Belper, Derbyshire. - Page 2 220674B Supplied By www.heating spares.co Tel. 0161 620 6677...
- Page 3 1 G e n e r a l 1.1 Important Notice 1.2 Sheet Metal Parts This boiler is for use on natural gas as distributed in the WARNING. When installing the boiler, care should be United Kingdom and Ireland (G20) and cannot be used taken to avoid any possibility of injury when handling on any other gas.
- Page 4 G e n e r a l 13 - Safety Valve Discharge 1 - Heat Exchanger 14 - Water Throttle 2 - Main Burner 15 - Mini Expansion Vessel 3 - Pilot Burner 16 - Flow Switch 4 - Automatic Air Vent 17 - Gas/Air Ratio Unit 5 - Expansion Vessel 18 - Multi-Functional Control...
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Page 5: Gas Supply
G e n e r a l 1.7 Gas Supply The gas installation must be in accordance with the rules in force in the countries of destination. The supply from the governed gas meter must be of adequate size to provide a steady inlet working pressure of 20mbar (8in wg) at the boiler. -
Page 6: Boiler Position
B o i l e r P o s i t i o n 2.1 Boiler Position The boiler must be installed in accordance with the rules in force of the countries of destination. The boiler is not suitable for outside installation. Any electrical switch or boiler control using mains electricity must be positioned so that it cannot be touched by a person using the bath or shower. -
Page 7: Flue Position And Length
F l u e a n d V e n t i l a t i o n Note. All flue assemblies are designed for internal WALL THICKNESS ‘X’: 75 to 590mm installation, given that there is sufficient clearances opposite to the flue for the installation of the flue. For a wall thickness up to 300mm, provided there is “X”... - Page 8 F l u e a n d V e n t i l a t i o n 3.4 Terminal Guard A terminal guard is required if persons could come into contact with the terminal or the terminal could be subject to damage.
- Page 9 H e a t i n g S y s t e m Btu/h x1000 ˚C ˚F FEET ACCEPTABLE DIFFERENTIAL RANGES 35 Litres/Min Gallons/Min FLOW RATE Diagram 4.1 4.1 General Notes 4.5 Expansion Vessel The boiler is for use in sealed water systems only. The boiler has an integral expansion vessel with a capacity of 8Litres (1.76gallons), with a charge pressure of 0.75bar.
- Page 10 H e a t i n g S y s t e m 4.6 Flow Rate 3-LITRE MAKE-UP A valve must be incorporated in the main flow or return DOMESTIC BOTTLE of the system, valve “A” shown in the flow in diagram WATER (if required) 4.2.
- Page 11 H e a t i n g S y s t e m 4.9 Filling Sealed Systems 0051M METHOD 1 COMBINED CHECK VALVE HEATING Provision for filling the system at a low level must be TEMPORARY AND VACUUM SYSTEM made. Three methods of filling are shown in diagram HOSE BREAKER 4.3.
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Page 12: Water Pressure
D o m e s t i c H o t W a t e r S y s t e m 5.1 General 5.3 “Hard” Water Areas The domestic hot water service must be in accordance In areas where the water is “hard”, that is, more than with the rules in force in the countries of destination. - Page 13 A p p l i a n c e a n d F l u e P r e p a r a t i o n 6.1 Unpacking FAN SECURING ELECTRICAL Remove the top carton and cut out the flue template from SCREWS PLUG the inner flap.
- Page 14 A p p l i a n c e a n d F l u e P r e p a r a t i o n 6.2 Marking 130 Dia. MIN. CLEARANCE The boiler mounting frame is the same width as the boiler case.
- Page 15 F l u e P r e p a r a t i o n 7.1 Flue Length For a rear flue, measure the distance from the outside "X" wall face to the boiler mounting wall. Check that the BOILER OUTSIDE flue length will be suitable, see diagram 3.1 for a MOUNTING...
- Page 16 F l u e P r e p a r a t i o n 7.5 Wall Thickness up to 300mm AIR DUCT/ TERMINAL FOAM Fit the self adhesive seal provided in the loose items SEAL pack around the air duct/terminal at the position shown in diagram 7.4.
- Page 17 G a s a n d W a t e r C o n n e c t i o n s 8.1 Gas Connection ‘NOTCH’ MARKING POSITION OF BOILER SAFETY VALVE DISCHARGE MOUNTING The gas supply can be connected from below or through FRAME the wall at the rear of the boiler, see diagram 8.1 for position.
- Page 18 E l e c t r i c a l C o n n e c t i o n s INTEGRAL CLOCK TO BOILER EXTERNAL CLOCK TO BOILER RED LINK. 5 POLE CONNECTOR ON 5 POLE CONNECTOR ON REMOVE WHEN MOUNTING FRAME MOUNTING FRAME CONNECTING ANY...
- Page 19 E l e c t r i c a l C o n n e c t i o n s 9.1 Supply Cable Connection The boiler requires a permanent mains supply through an RED LINK isolator which must also isolate any heating system Remove when controls, see diagram 9.1.
- Page 20 B o i l e r F i x i n g 10.1 Mounting the Boiler FLUE ELBOW/ After installing the flue, boiler mounting frame, gas, AIR DUCT domestic and heating systems, making the electrical connections and preparing the flue components, continue SECURING SCREW (4) as below:...
- Page 21 B o i l e r F i x i n g 10.6 Discharge Pipe Fit the short discharge pipe to the safety valve using the nut and olive supplied loose, see diagram 10.6. Remove the control housing cover front securing screw Extend the discharge, refer to Section 8.3.
- Page 22 C o m m i s s i o n i n g 11.1 Filling Domestic Water Circuit PIEZO Check that the boiler is isolated from the electrical CONTROL BUTTON “E” KNOB “D” supply, at the external isolator. Fully open the domestic water supply stop cock or valve in the supply to the boiler.
- Page 23 C o m m i s s i o n i n g 11.3 Preparation for Lighting MULTI-FUNCTIONAL Isolate the boiler from the mains electrical supply at the CONTROL external isolator. Test for soundness and purge air from the gas supply in accordance with the rules in force in the countries of destination.
- Page 24 C o m m i s s i o n i n g 11.5 Burner Pressure - Hot Water. DOMESTIC HOT WATER Switch on the electrical supply, the pump and fan will THROTTLE operate for about 30 seconds, then the fan will reduce speed and the pump stop.
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Page 25: Temperature Settings
C o m m i s s i o n i n g 11.7 Domestic Water Flow Rate 11.9 Temperature Settings Fully open the largest domestic hot water draw off tap. The domestic hot water outlet and central heating flow temperatures are factory preset and sealed. - Page 26 C o m m i s s i o n i n g 11.11 Completion The user control door is designed for left or right hand hinging. If required the hinge can be moved to the other side to that supplied, as follows: Remove the hinge pin bracket securing screw then remove the hinge pin retaining bracket and holding the HINGE PIN RETAINING...
- Page 27 Substances Harmful to Health. The adhesives and sealants used in this appliance are cured and give no known hazard in this state. INSULATION PADS/CERAMIC FIBRE These can cause irritation to skin, eyes and the respiratory tract. If you have a history of skin complaint you may be susceptible to irritation. High dust levels are usual only if the material is broken.
- Page 28 Because of our constant endeavour for improvement details may vary slightly from those in the instructions. 220674B Supplied By www.heating spares.co Tel. 0161 620 6677...
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