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It is important that the boiler is initially 

filled and started for the first time using 

the method shown in 2.3.3 section e). 

This procedure should also be used 

when refilling after draining a boiler.

The boiler must be installed in a fixed 

location and only by specialized and 

qualified person in compliance with all 

instructions contained in this manual. 

The installation of this boiler must 

be in accordance with the relevant 

requirements of the current Gas Safety 

(installation and use), the local building 

regulations, and and I.E.E. wiring 

regulations.

 

Detailled recommendations 

for air supply are given in BS5440:2. 

The following notes are for general 

guidance: it is not necessary to have a 

purpose provided air vent in the room 

or compartment in which the appliance 

is installed.

2.1 ANTI-FREEZE 

FUNCTION

The boilers are equipped with anti-freeze 

function which activates the pump and 

the burner when the temperature of the 

water contained inside the appliance 

drops to below value PAR 10. The anti-

freeze function can only operate if:

– the boiler is correctly connected to 

the gas and electricity supply circuits;

–  the boiler is switched on;

–  the boiler ignition is not locked out;

–  the essential components of the boiler 

are all in working order.

In these conditions the boiler is protected 

against frost down to an environmental 

temperature of -5°C.

ATTENTION: In the case of installation 

in a place where the temperature drops 

below 0°C, the connection pipes must 

be protected. 

2.2 

FIXING THE WALL

   

MOUNTING BRACKET (fig. 4)

–  Mark the position of the two wall 

mounting bracket fixing holes and the 

flue/air duct hole on the appropriate 

wall(s).

–  Drill the two fixing holes using a 10 

mm masonry drill and fit the plastic 

plugs provided.

–  Accurately measure the wall thickness, 

and note this dimension for later use.

–  Secure the wall mounting bracket in 

position using the screws provided. 

Ensure that it is the correct way up, 

as indicated in fig. 4.

2.3 

CONNECTING UP SYSTEM

Before connecting the boiler it is 

recommended that the system be 

flushed in accordance to BS 7593, to 

eliminate any foreign bodies that may be 

detrimental to the operating efficiency 

of the appliance. When connecting up 

the boiler the clearances in fig 1 should 

be respected. 

The boiler is supplied with a valve pack 

part number 5184817A. The boiler can be 

filled and pressure tested prior to any 

electrical supply being connected with 

the use of the analogue pressure gauge.

A safety valve set at 3 bar is fitted to the 

appliance, the discharge pipe provided 

should be extended to terminate safely 

away from the appliance and where 

a discharge would not cause damage 

to persons or property but would be 

detected. The pipe should be a minimum 

of 15 mm Ø and should be able to 

withstand boiling water, any should 

avoid sharp corners or upward pipe 

runs where water may be retained.

Gas Connection

The gas connection must be made 

using seamless steel or copper pipe. 

Where the piping has to pass through 

walls, a suitable insulating sleeve must 

be provided. When sizing gas piping, 

from the meter to the boiler, take into 

account both the volume flow rates 

(consumption) in m

3

/h and the relative 

density of the gas in question. The 

sections of the piping making up the 

system must be such as to guarantee 

a supply of gas sufficient to cover the 

maximum demand, limiting pressure 

loss between the gas meter and any 

apparatus being used to not greater 

than 1.0 mbar for family II gases (natural 

gas). An adhesive data badge is sited 

inside the front panel; it contains all the 

technical data identifying the boiler and 

the type of gas for which the boiler is 

arranged.

2.3.1  Connection of condensation 

 water 

trap 

To ensure safe disposal of the condensate 

produced by the flue gases, reference 

should be made to BS6798:2009. 

The boiler incorporates a condensate 

trap which has a seal of 75 mm, therefore 

no additional trap is required. The 

advised method of connection to the 

condensate trap is by using 20 mm 

overflow pipe with a socket attached to 

cover the condensate trap connection. 

The condensate should ideally be 

discharged internally into an internal 

waste pipe(washing machine/sink 

waste) or a soil pipe to avoid the risk 

of freezing. 

External pipe runs should be avoided, but 

if it is necessary, the pipework should be 

at least 32mm and protected from the risc 

of freezing with a waterproof insulation 

and the length kept to a minimum and 

not exceeding 3 m. termination should 

be into an external gully or purpose 

made soakaway.

NOTE: All pipework must have a 

continuous fall from the boiler and must 

be resistant to corrosion by condensate, 

copper or steel is NOT suitable. 

It should be noted that the connection 

of a condensate pipe to a drain may 

be subject to local building control 

requirements.

2.3.2  Dealing with condensate

See APPENDIX A for guidance on the 

disposal of condensate.

2.3.3  Requirements for sealed water

  

systems (fig. 5)

The heating system design should be 

based on the following information:

a) The available pump head is given in 

fig. 14.

b) The burner starts if the system 

pressure is sufficient to operate the 

pressure switch.

c) The appliance is equipped with an 

internal by-pass that operates with 

system heads (H) greater than 3 

m. The maximum flow through 

the by-pass is about 300 l/h. If 

thermostatic radiator valves are to 

be installed, at least one radiator 

should be without a thermostatic 

valve (usually the bathroom radiator 

or the radiator in the room containing 

2 INSTALLATION

10

1

2

3

4

KEY

1  Wall mounting bracket

2  Plastic wall plug (2 Off)

3  Woodscrew (2 Off)

4  Washer (2 Off)

Fig. 4

Summary of Contents for COMFORT 30

Page 1: ...VICING INSTRUCTIONS ENSURE THAT THESE INSTRUCTIONS ARE LEFT FOR THE USER AFTER COMPLETION OF THE BENCHMARK SECTION PLEASE READ THE IMPORTANT NOTICE WITHIN THIS GUIDE REGARDING YOUR BOILER WARRANTY UK...

Page 2: ...any surfaces carpets or floorings Use a suitable container to catch any water that escapes when removing the protective caps from the connections SAFE HANDLING IMPORTANT NOTICE For the first year all...

Page 3: ......

Page 4: ...standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety efficiency and performance Benchmark is managed a...

Page 5: ...ter and the correct pressure showing on the pressure gauge Is the Auto Air Vent open Has the pump been rotated manually Is the gas supply working pressure correct Is the boiler wired correctly See ins...

Page 6: ...tured and sold by do not contain any banned materials or substances ie they comply with ISO9000 2000 1 DESCRIPTION OF THE BOILER 65 65 60 70 M U G E R M U G E R 125 15 450 60 100 139 183 50 39 30 10 6...

Page 7: ...he heating expansion vessel bar 1 0 D H W setting range C 10 60 D H W flow rate EN 625 l min 13 4 Continuous D H W flow rate t 30 C l min 14 4 Minimum D H W flow rate l min 2 2 D H W pressure min max...

Page 8: ...elease vent 11 D H W flow switch 12 Water inlet filter 14 Pressure relief valve 15 Water pressure switch 16 Automatic bypass 17 Drain vent 18 Expansion vessel 19 Condensate drain trap 21 D H W isolati...

Page 9: ...ain trap 3 C H sensor SM 4 Safety thermostat 5 Ignition electrode 7 Primary exchanger 8 Air release vent 9 Limit stat 10 Exhaust temperature sensor 11 Smoke chamber 12 Expansion vessel 13 Air inlet 14...

Page 10: ...pe should be a minimum of 15 mm and should be able to withstand boiling water any should avoid sharp corners or upward pipe runs where water may be retained Gas Connection The gas connection must be m...

Page 11: ...ucts for the flushing and final treatment of the system water This is particularly important in hard water areas Artificially softened water must not be used to fill the heating system It is important...

Page 12: ...external perimeter walls of the building To provide some indications of possible solutions Table 4 gives the minimum distances to be observed with reference to the type of building shown in fig 9 120...

Page 13: ...inal is fitted within 850 mm 34 in of a plas tic or painted gutter or 450 mm 18 in of painted eaves an aluminium shield at least 1 500 mm 59 in long must be fitted to the underside of the painted surf...

Page 14: ...s valve coil VD Divertor valve SM C H sensor TS Safety thermostat TFU Thermal fuse TL Limit stat FL D H W flow switch SF Exhaust temperature sensor PA Water pressure switch TA Room thermostat SE Exter...

Page 15: ...re than two seconds to enter standby RESET is only available if a re settable error is signalled D H W SET Press the key to display the D H W temperature value set HEATING SET Press the key to display...

Page 16: ...0 PAR 14 C 1 20 14 Maximum heating temperature PAR 13 80 C 1 80 15 Maximum heating power 30 99 1 99 16 Post circulation time 0 99 10 sec 1 03 17 Pump heating activation delay 0 99 10 sec 1 01 18 Re ig...

Page 17: ...hich guarantees reaction in the case of accidental extinction or lack of gas within one second 3 6 1 Functioning cycle Burner ignition should occur within 10 seconds of the opening of the gas valve If...

Page 18: ...100 485 200 480 300 471 400 462 500 445 600 423 700 391 800 352 900 300 1050 222 iQE COMFORT 30 Fig 15 Fig 14 KEY 1 Condensate drain trap 2 Diverter valve 3 D H W exchanger 4 Gas valve 5 D H W flow s...

Page 19: ...this value using or Exit the parameters section by pressing The table below gives the values to set when the supply gas is changed 4 2 2 Calibrating the gas valve pressures See 4 8 1 This can only be...

Page 20: ...maximum Hi and at minimum Lo power From that moment the boiler will start working in heating mode at maximum power with cut off at 80 C and re ignition at 70 C Before activating the chimney sweep fun...

Page 21: ...ct combustion having first checked That the boiler has been installed in accordance with these instructions The integrity of the flue system and the flue seals The integrity of the boiler combustion c...

Page 22: ...nnect the fan wiring Remove the four nuts securing the burner to the heat exchanger Carefully lift out the burner Check seals and replace if necessary Replace in reverse order Test for gas tightness 4...

Page 23: ...Fitted Not required 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 use...

Page 24: ...in rate Where Possible CO ppm AND CO Comments Signature SERVICE 04 Date Engineer name Company name Telephone No Gas safe register No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm...

Page 25: ...leads from L to E if meter reads other than infinity there is a fault which should be isolated A detailed continuity check is required to trace the faulty component IMPORTANT These series of checks a...

Page 26: ...obtained a flue gas analysis must be done See section 4 2 2 9 Press the button to return the boiler to minimum output Lo will be displayed 10 Check the analyzer CO2 Ratio and compare to values reporte...

Page 27: ...ER PRESSURE SWITCH Isolate boiler Remove cover Isolate flow and return valves Drain boiler using drain vent Remove clip below the switch Disconnect the wiring Lift switch upwards Refit in reverse orde...

Page 28: ...28 7 EXPLODED VIEWS...

Page 29: ...29...

Page 30: ...ring 2031 24 6278812 Air gas hose upper side 25 6226465 O ring diam 183 83x2 62 26 6174809 Gasket for ignition electrode 27 6221644 Ignition electrode 28 6221645 Ionisation electrode 29 6174816 Gasket...

Page 31: ...42 Spring clip 89 6226640 Spring clip 90 6119357 Brass cap 91 6226641 Spring clip 92 6040215 Pressure relief valve 3 bar 93 6226472 ORing 17 86x2 62 94 6272331 Circulating pump 95 6013182 Automatic ai...

Page 32: ...the possibility that UK weather patterns will show more extremes in future due to the effects of global climate change the following guidance updates previous recommendations on condensate drainage p...

Page 33: ...n be removed using a proprietary condensate pump of a specification recommended by the boiler or pump manufacturer The pump outlet should discharge to a suitable internal foul water discharge point su...

Page 34: ...ion then the connection method shown in Figure 4 should be used together with the measures on insulation etc as described above and shown in the diagram When a rain water downpipe is used as the termi...

Page 35: ...for householders on remedial actions which can be taken if a condensate drainage pipe freezes This may result in requests for alteration to condensate drainage pipework in which case the guidance abov...

Page 36: ...rnal soil and vent stack Key 1 Boiler 2 Visible air break 3 75 mm trap 4 Visible air break and trap not required if there is a trap with a minimum condensate seal of 75 mm incorporated into the boiler...

Page 37: ...red if there is a trap with a minimum condensate seal of 75 mm incorporated into the boiler In this case the 100 mm is measured to the trap in the boiler 5 Sink basin bath or shower 6 Open end of cond...

Page 38: ...isible air break at plug hole 3 75 mm sink basin bath or shower waste trap 4 Sink basin bath or shower with integral overflow 5 Open end of condensate drainage pipe direct into gully 25 mm min below g...

Page 39: ...39 IND GUIDE INST 10 11 HHIC REF T11 0027BRev8 Figure 3 Connection of a condensate pump typical method NB manufacturer s detailed instructions should be followed...

Page 40: ...nimum up to three storeys 2 Visible air break 8 Minimum internal diameter 19 mm 3 75 mm trap 9 Pipe size transition point 4 Visible air break and trap not required if there is a trap with a minimum co...

Page 41: ...drain Key 1 Condensate discharge pipe from boiler 7 Air gap 2 Pipe size transition point 8 68 mm PVCu strap on fitting 3 Water weather proof insulation 9 Minimum internal diameter 19 mm 4 43 mm 90 ma...

Page 42: ...required if there is a trap with a minimum condensate seal of 38 mm incorporated into the boiler 5 External length of pipe 3 m maximum 6 Open end of condensate drainage pipe direct into gully 25 mm m...

Page 43: ...above or below ground level End cut at 45 3 Diameter 100 mm minimum plastic tube 4 Bottom of tube sealed 5 Limestone chippings 6 Two rows of three 12 mm holes at 25 mm centres 50 mm from bottom of tub...

Page 44: ...to the boiler Is O2 less than or equal to 20 6 and CO2 less than 0 2 VERIFY FLUE INTEGRITY Analyser readings indicate that combustion products and inlet air must be mixing Further investigation of th...

Page 45: ...NOTES...

Page 46: ...NOTES...

Page 47: ......

Page 48: ...iqe co uk Trade House BA22 8RT Phone 0800 0152252...

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