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8. HEATING 

SYSTEM

8.1 

The installation must comply with all relevant national and local regulations.

 

All components of the system must be suitable for a working pressure of 3 bar and temperature of 110°C. Extra 
care should be taken in making all connections so that the risk of leakage is minimised.

NOTE:

 

a.   The method of filling, refilling, topping up or flushing sealed primary hot water circuits from the  
 

mains via a temporary hose connection is only allowed if acceptable to the local water authority.

 

b.   Antifreeze fluid, corrosion and scale inhibitor fluids suitable for use with boilers having stainless  
 

steel heat exchangers may be used in the central heating system.

8.2 EXPANSION 

VESSEL: 

The integral expansion vessel is pre-charged to a pressure of between 0.5 and 1.0 bar. 

This should be checked before the water system is filled. Table 3 show the water system volume that is acceptable 
for this vessel. If the system water volume is larger then an additional vessel must be fitted to the system. BS 5449 
and BS 6798 gives further details regarding expansion vessel sizing and sealed systems. See Table 3.

8.3 PRESSURE 

GAUGE:

 

The appliance has two components that monitor pressure. Firstly there is a mechanical 

pressure gauge on the CH flow outlet, this allows the heating system to be pre-plumbed and filled with a visual 
check on the pressure. The second is an electronic device used by the microprocessor control to monitor the 
system pressure and block the heat input, should there be a lack of pressure.

8.4 PRESSURE 

RELIEF 

VALVE:

 

The pressure relief valve protects the system from over pressurisation. It is set to be 

fully open at 3 bar, however it will start to open at approximately 2.7 bar. It should not be used to flush the system. 
Using no less than 15mm diameter copper pipe, the discharge pipe must be extended to a safe place outside the 
building. The discharge position must be visible, not onto a public access area or above any window or entrance. 
The pipe must have a continuous fall and discharge to a safe place. It is possible that boiling water and/or steam 
could be discharged if the safety valve operates.

8.5 FILLING 

LOOP:

 The g

roup set incorporates a filling loop that temporarily connects the DHW supply to the CH 

system. This is used to fill the CH system on installation and whenever the water pressure has been removed for 
system modifications, etc. The filling loop complies with the water supply (water fittings) regulations 1999 Section 
G24.1 and G24.2. After filling the system the hose should be disconnected and stored in a safe place for future use. 

8.6 PIPEWORK 

SIZING: 

In order to keep the noise of the system to a minimum, the velocity of water should be kept 

below 1.5m/s and it should be noted that the appliance is designed to operate with a temperature differential of 
20

˚

C between flow and return. The maximum flow rates are 0.3 kg/s  which, through a 22mm pipe, gives velocities 

of 1.00m/s. Therefore, the recommended minimum pipe size for the main carcass is 22mm.

8.7  

DOMESTIC HOT WATER SYSTEM REQUIREMENTS

 

The DHW service must be in accordance with BS 5546 & BS 6700.

8.7.1 

Domestic hot water circuits and their components, must be in accordance with the relevant standards 
and water supply regulations. Further guidance/recommendations can be found in building regulations 
G17 to 24 and R17 to 24.

8.7.2 

The maximum domestic cold water supply pressure allowable for this appliance is 5 bar. If the supply 
pressure exceeds this, a pressure-reducing valve must be installed in the supply to the appliance.

8.7.3 

If the water to the property is “hard”, more than 200ppm of salts, then a scale inhibitor should be fitted. 
Such products are available from Salamander.

 

NOTE:

 The system must not be filled with ‘softened’ water. The cold water filling position should be before 

any softening product.

8.7.4 

In areas of low mains water pressures the domestic hot water regulator may be removed from the DHW 
flow turbine cartridge. The boiler will require the flow rate to be set to obtain a temperature rise of 35°C at 
the tap furthest from the boiler.

8.7.5  

The boilers are suitable for connection to most types of washing machine and dishwasher appliances.

8.7.6.   When connecting to suitable showers, ensure that:

a.  

The cold inlet to the boiler is fitted with an approved anti-vacuum or syphon non-return valve.

b.  

Hot and cold water supplies to the shower are of equal pressure.

 

IMPORTANT:

 

Provision must be made to accommodate the expansion of DHW contained within the 

appliance. If the DHW inlet contains a back flow prevention device or non-return valve, e.g. A water 
meter, then a mini expansion vessel should be fitted between the device and the boiler in the cold inlet 
pipe.

Содержание Quantec HR28C ErP

Страница 1: ...E R V E N T I L AT I O N INSTALLATION COMMISSIONING SERVICING INSTRUCTIONS QUANTEC HR28C ErP High Efficiency Boiler with Passive Flue Gas Heat Recovery Quantec HR28C ErP G C No 47 416 11 These instru...

Страница 2: ...tions 4 4 Safety Gas Information 4 General Safety Information Handling the Unit Operating the Appliance Electrical Supply Gas Supply 5 Fiche ErP Technical Data 5 Technical Data Performance Data 6 Prep...

Страница 3: ...order to maintain the DHW calorifier in a heated condition This only occurs if pre heat is in the ON period When there is a demand for CH the heating system is supplied at the selected temperature of...

Страница 4: ...ng of water based heating systems BS 5546 Installation of gas hot water supplies for domestic purposes 2nd Family Gases BS 6798 Installation of gas fired hot water boilers of rated input not exceeding...

Страница 5: ...4 4 1 Ensure the mains supply voltage frequency number of phases and power rating comply with details on the rating label 4 4 2 All wiring must be in accordance with the appropriate standards The equ...

Страница 6: ...output and low temperature regime 1 98 8 AUXILLARY ELECTRICITY CONSUMPTION At full load elmax 0 068 kW At part load elmin 0 048 kW In standby mode PSB 0 002 kW OTHER ITEMS Standby heat loss PSB 0 099...

Страница 7: ...ssel 73lts Electrical supply 230V 50Hz Electrical rating 100W External fuse rating 3A Expansion vessel capacity 8 litres Expansion vessel initial charge pressure 1 0 bar Heating system minimum pressur...

Страница 8: ...n the condensate drainage system MUST be made of plastic no other materials may be used IMPORTANT Any external runs must be in accordance with BS 6798 The drain outlet on the boiler is sized for stand...

Страница 9: ...ctrical installations and I S 813 6 2 4 TIMBER FRAME BUILDINGS When installed in a timber frame building guidance should be taken from the gas industry publication IGE UP 7 Guide for Gas Installations...

Страница 10: ...321 123 212 183 780 321mm FIGURE 4 QUANTEC COMBI DIMENSIONS FIGURE 5 FLUE CLEARANCES KITCHEN LAYOUT TOP VIEW TABLE 3 EXPANSION VESSEL REQUIREMENTS Vessel charge and initial system pressure bar bar 0...

Страница 11: ...supply to the CH system This is used to fill the CH system on installation and whenever the water pressure has been removed for system modifications etc The filling loop complies with the water suppl...

Страница 12: ...DHW INLET CH RETURN GAS INLET DHW OUTLET PLATE TO PLATE HEAT EXCHANGER DIVERTER VALVE FILLING LOOP FLOW THERMISTOR RETURN THERMISTOR DHW FLOW RESTRICTOR DHW COLD INLET FILTER DHW FLOW TURBINE DRAIN TA...

Страница 13: ...for a one man lift as detailed in the Manual Handling Operations 1992 Regulations 9 2 1 It should be noted this appliance could contain sharp edges and care MUST be taken when handling 9 2 2 Screw the...

Страница 14: ...and the Building Regulations If no specific instructions are given reference should be made to the relevant codes of practice THESE RELEVANT STANDARDS SHOULD BE FOLLOWED BS 5440 1 Flues and ventilatio...

Страница 15: ...eaves 200mm F Below balconies 200mm G From a vertical drain pipe or soil pipe 150mm H From an internal or external corner Greater than 450mm protrusion 300mm H From an internal or external corner Grea...

Страница 16: ...le from Johnson Starley The distance between the guard and the nearest part of the terminal must not be less than 50 mm 10 7 6 The flue MUST NOT be installed under a car port 10 8 PLUME TERMINAL OUTLE...

Страница 17: ...ical 1000 0020740 16 Plume Management Kit Black 1 Horizontal Vertical 1000 0020730 17 1000mm Extension Flue 60mm Black 1 Horizontal Vertical 1000 0020740 18 90 Elbow 60mm Black 1 Horizontal Vertical 1...

Страница 18: ...l template Label Ref 1000 2217950 3 500mm Pitched Roof Weather Collar 500mm 1140mm Flat Roof Weather Collar 20 to 50 Ridge Terminal Ridge Terminal Clamps Flue Extensions Vertical Appliance Adaptor Adj...

Страница 19: ...in between the locating pips on the end of the terminal 2 NO OUTSIDE ACCESS 2 1 If no access is available from outside the building drill a 125mm diameter hole 2 2 Mount the wall bracket and the boil...

Страница 20: ...e trace heating manufacturer and any specific recommendations regarding pipe diameter insulation etc should be followed All other relevant guidance on condensate drainage pipe installation should also...

Страница 21: ...vided in hardware pack 12 4 5 Connect wires to terminal block 12 4 6 Swing the control box back up into the operating condition and re fit the front panel ensuring a good seal is made 12 5 THERMOSTATS...

Страница 22: ...www johnsonandstarley co uk 22 13 WIRING DIAGRAM FIGURE 22 WIRING DIAGRAM COLOUR Red RD Brown BN White WH Grey GY Yellow YE Pink PK Black BK Violet VT Orange OG Green Yellow GNYE Blue BU...

Страница 23: ...bar When reached closed the isolation valves 14 5 5 Disconnect the left hand filling loop retain the top hat washer and using the blanking caps cap off the connection and the end of the filling loop...

Страница 24: ...CH RETURN CH DRAIN POINT ITEM DESCRIPTION ITEM DESCRIPTION A CH Central heating flow Black handle E CH Central heating return Black handle B DHW Domestic hot water outlet F Filling loop isolation val...

Страница 25: ...ed 15 6 4 Reset the boiler see paragraph 15 3 The boiler will repeat its ignition sequence If reset occurs 5 times within 15 minutes then F 15 will be shown If power is removed this will be reset 15 6...

Страница 26: ...icity supplies to the boiler and drain down to complete the flushing process NOTE A flushing solution should be used during the flushing procedure Flushing solutions Fernox Superfloc Sentinel X300 new...

Страница 27: ...cedure and if unable to re pressurise or if the pressure continues to drop a registered local heating installer should be consulted 16 10 Explain Boiler reset procedure 16 11 After installation and co...

Страница 28: ...of gas fired boilers of rated input not exceeding 70kW net advises that The person carrying out a combustion measurement should have been assessed as competent in the use of a flue gas analyser and t...

Страница 29: ...rse order 17 9 CONDENSATE TRAP Refer to paragraph 17 5 17 9 1 Unscrew the 2 pipes and pull off the third pipe 17 9 2 Remove the trap and clean by removing the cleaning plug Flush out any deposits with...

Страница 30: ...urner 19 3 7 Refit in reverse order 19 3 8 Check the operation of the boiler See Section 15 18 4 FLOW RETURN THERMISTOR SENSORS 19 4 1 Refer to paragraph 17 5 19 4 2 Unclip the thermistor sensor from...

Страница 31: ...THE APPLIANCE SYSTEM 18 11 CENTRAL HEATING CIRCUIT 18 11 1 Refer to paragraph 17 5 See Figure 25 18 11 2 Close all the CH water isolating valves A and E on the boiler inlet 18 11 3 To drain the prima...

Страница 32: ...18 17 DHW PLATE HEAT EXCHANGER 18 17 1 Refer to paragraph 17 5 See Figure 47 18 17 2 Drain the boiler See paragraph 18 11 and 18 12 18 17 3 Remove the fan See paragraph 17 6 18 17 4 Remove 2 allen scr...

Страница 33: ...w regulator 18 20 5 Replace and refit in reverse order 18 20 6 Refill the boiler See paragraph 12 4 18 20 7 Check operation of the boiler See Section 15 18 21 EXPANSION VESSEL RECHARGING 18 21 1 Refer...

Страница 34: ...ng and integrity of the internal boiler wiring is working OK Check condition of the Flame Sensor Electrode and replace if necessary Is approx 24 VDC supply available at the gas valve Check that the pu...

Страница 35: ...ation valves check as supply then reset boiler Check and replace wiring as necessary Replace the Flow Return Sensor Secure Sensors and reset Replace Sensor Check pump is rotating Remove the return the...

Страница 36: ...ons Replace DHW sensor Correct the wiring Is the water system pressure under 2 8bar Is the wiring securely connected to sensor Is the boiler a system type with heat recovery Does the resistance of the...

Страница 37: ...position Are the timer and room thermostat switched on Is there 24V at A see diagram YES NO YES NO NO YES YES YES YES YES Is the hot cold pipework crossed Replace the PCB Is the wiring connected betw...

Страница 38: ...to 9 way connector on PCB X5 Replace PCB NO NO NO Fill and vent the system and open all isolation valves check as supply then reset boiler Replace the flue thermistor Secure to PCB Is the boiler CH s...

Страница 39: ...1000 1508630 J21 243 9 M5 Screws 4 1000 3003330 J21 244 10 M5 Nuts 4 1000 3003820 J21 238 11 Ignition Detection Electrode 1 1000 0711785 J21 229 12 Electrode Gasket 1 1000 2501270 H38 677 13 M4 x 8 T...

Страница 40: ...00 0525555 J21 268 28 15mm O Ring 1 29 Clip 1 30 Pressure Sensor Harness 1 1000 0526945 J21 278 31 DHW Temperature Sensor 1 1000 0302195 J21 267 32 Flow Return Temperature Sensor 1 1000 0526515 J24 70...

Страница 41: ...to the customer any remedial or improvement work identi ed during the course of commissioning or servicing work Refer to the manufacturer s helpline where assistance is needed Report product faults an...

Страница 42: ...uired Thermostatic radiator valves Fitted Not required Automatic bypass to system Fitted Not required Boiler interlock Provided ALL SYSTEMS s instructions Yes What system cleaner was used What inhibit...

Страница 43: ...Company name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 06 Date Engineer name Company name Telephone No Gas...

Страница 44: ...y co uk Reception Customer Service 01604 762881 Fax 01604 767408 Johnson Starley Dravo Division Industrial H V Sales 01604 707022 sales johnsonandstarley co uk www dravo co uk Anniversary 1922 2012 In...

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