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3.1

internal compartment without the need for purpose 
made combustion ventilation. However, if the boiler is 
installed in a compartment it is recommended that the 
compartment is ventilated for cooling purposes. A 
functional diagram of the boiler’s principal 
components is given as figure 1. A functional diagram 
of the boiler’s principal components  is  given as 
VENTILATION section in user manual 
 
3.2 

       Range rated from 25kW and 28kW the Capriz 25/
Capriz 28 heat output can be focused to match the
designed heating systems adjustments.   
 
3.3 An electronic control unit, consisting of a PCB, 
which includes ignition module, provides direct burner 
ignition and flame supervision along with continuous 
modulation of the burner’s gas supply. 
 
3.4 An interface unit, which includes boiler adjustment 
potentiometers and fault display provides easy service 
ability to the boiler. 
 
3.5 Heat transfer to the boiler’s primary hydraulic 
circuit is obtained via a primary, gas to water heat 
exchanger contained within a hermetically sealed 
combustion chamber. A 230 volt, duel speed fan 
expels the products of combustion from the 
combustion chamber to outside air via an associated 
flue system. The fan  is  activated at the beginning of 
each ignition cycle and its operation monitored by 
means of negative and positive sensing points 
connected to an air pressure switch. 
 
3.6 A secondary heat exchanger allows the 
instantaneous transferral of heat from the primary 
hydraulic circuit to water destined for domestic hot 
water use. The secondary heat exchanger is sized so 
as to minimise thermal shock and is protected against 
the build up of lime scale by limiting the D.H.W. outlet 
water temperature to a maximum of 64°C. 
 
3.7 An integral pump located in the boilers main 
hydraulic circuit circulates water through the primary 
heat exchanger to either the central heating circuit or 
D.H.W. heat exchanger, depending on the demand. In 
the  event of reduced or interrupted water circulation 
in the central heating circuit, a system by-pass should 
be fitted as far away from the boiler as possible.   
Note:  It is no longer permissible to utilise  
a non-thermostatic controlled radiator as a by-pass. 
 
 
 

 
3.8 Room temperature can be controlled by the use of an 
external room thermostat or temperature regulator.  
Note connection of the room thermostat is dependant on 
the operating voltage of the thermostat.  See section 9.4 
& 9.5 for details 
 
3.9 The boiler boiler’s control panel incorporates an LED 
display, which indicates the state of operation and fault 
defect codes. 
 
 
 

 

4.1

4.2

 Using the operating switch the boiler can be set to 

operate  either  on domestic  hot  water only or 
domestic hot water and heating.  

       Note: Domestic hot water demand draws preference 

over heating. During heating periods the boiler will 
automatically revert back to heating mode, after  
a  draw off of hot water, but there will be a 45sec 
delay if the No.3 dipswitch is set to the OFF position.  
See figure 21. 
 
 

Depending on demand water is either diverted via 

the three port valve to the secondary water-to-water 
heat exchanger for domestic hot water or directly to 
the heating system.  Schematic diagrams showing 
the flow within the boiler’s central heating hydraulic 
circuit figure 2a and D.H.W. hydraulic circuit figure 
2b are given.

3. Boiler Characteristics 

4. Operation

CENTRAL HEATING HYDRAULIC CIRCUIT

Figure 2a

Page 7

       The Capriz 25 / 28 is a fan flued, wall- mounted
condensing type combination boiler that supplies both
central heating and mains fed domestic hot water.Being
room sealed the boiler may be installed in any room or

07

Содержание capriz 25

Страница 1: ...capriz 25 capriz 28 Installation Servicing User Instructions www heatline co uk Condensing Wall Mounted Combination Boiler...

Страница 2: ...quality materials enabling reliability and optimum performance HeatlineTM is committed to the continual development of their appliances to ensure their customers benefit from the latest advances in co...

Страница 3: ...e G 8 3 1 s n o i t c e n n o C l a c i r t c e l E 9 5 1 n o i t a l l a t s n I r e l i o B 0 1 6 1 y l p p u S s a G 1 1 7 1 m e t s y S e h t g n i l l i F 2 1 7 1 s n o i t c n u F l e n a P l o...

Страница 4: ...rdance with these instructions and all the regulations currently in force Read these instructions carefully before installing or using the appliance Manual Handling As this appliance is heavy it is re...

Страница 5: ...e Store the appliance upright as indicated on the box The Signs on B The sign of approval the Capriz 25 Capriz 28 boilers have been certified by IMQ Italy ox LOW VOLTAGE ROOM THERMOSTAT This picture s...

Страница 6: ...s BS 5440 Flues and Ventilation for gas appliances of rated input not exceeding 70kW Part 1 Flues BS 5440 Flues and Ventilation for gas appliances of rated input not exceeding 70kW Part 2 Air Supply B...

Страница 7: ...5 0 8 3 1 5 0 8 Domestic water supply pressure Bar PMS Min 8 0 25 8 0 25 Expansion Vessel Capacity Litres 7 Expansion Vessel Pre charge Pressure bar 1 Domestic Water Supply Output at 30 C T Lt min 11...

Страница 8: ...ode 18 Heating Circuit Pressure Safety Valve 19 Secondary Heat Exchanger Plate H E 20 Automatic Air Vent 21 Water Pressure Switch Sensor 22 Pump 23 Gas Valve 24 D H W Flow Sensor 25 Filter Valve Below...

Страница 9: ...maximum of 64 C 3 7 An integral pump located in the boilers main hydraulic circuit circulates water through the primary heat exchanger to either the central heating circuit or D H W heat exchanger dep...

Страница 10: ...st during the installation In particular do not allow debris to enter the top of the boiler where the flue connection is made This may cause the fan outlet to get blocked or combustion chamber to fill...

Страница 11: ...ged operation of the boiler is expected at temperatures below 60 C a by pass must be installed on the boiler outlet in order to prevent condensation forming inside the combustion chamber Failure to co...

Страница 12: ...ive condensation occurring within the boiler flue the boiler should wherever possible be sited to ensure the shortest possible flue run is utilised 6 8 For compartment installation the requirements of...

Страница 13: ...m o r F L 0 0 5 1 l l a w e m a s e h t n o l a n i m r e t a m o r f y l l a c i t r e V M 0 0 3 l l a w e m a s e h t n o l a n i m r e t a m o r f y l l a t n o z i r o H N P 0 0 6 l a n i m r e t...

Страница 14: ...e less than 1 m the restrictor air diaphragm figure 6 must be fitted on the combination boiler Please find the information sheet for the installation of restrictor given with documentation group The d...

Страница 15: ...rcuit board as indicated in Figure 8 Cut the existing link and connect the wires into the thermostat circuit 9 6 Ensure that the polarity of the mains connection is correct as reversed polarity may ca...

Страница 16: ...AL HEATING SENSOR THREE WAY VALVE PUMP FAN PRINTED CIRCUIT BOARD L E N 230V 50Hz PERMANENT MAINS SUPPLY FUSED AT 3A 24V ROOM THERMOSTAT CONNECTION low voltage 24V TIME CLOCK low voltage 230V ROOM THER...

Страница 17: ...00 B 169 C 60 100 10 4 When cutting the flue hole it is recommended that a 105mm diameter core drill is used where both internal and external access for the flue installation is available Where only i...

Страница 18: ...ate trap by turning anti clockwise and fill it with approximately 50 cc water re connecting it to the boiler Figure 16 10 18 Connect the condensate drainage pipe to the drainage system Figure 16 Note...

Страница 19: ...l control unit monitors and adjusts both the boiler s hydraulic circuit and D H W water outlet temperatures by means of sensors located on the Central heating and D H W flow outlets The sensors electr...

Страница 20: ...bank of dip switches to allow adjustment to its pre set parameters These are situated on the rear of the control panel The potentiometers can easily be accessed by removing the cover on the rear of co...

Страница 21: ...the designed central heating system requirements Figure 23 16 1 A hydraulically operated primary pressure sensor monitors water pressure or water shortage in the primary hydraulic circuit and will swi...

Страница 22: ...s LED ON Create demand Bar LED Flashing Is 240 Vac present at pin X15 on PCB Fan running at full speed LED ON Does pump run now Check low water pressure switch cables connections clean or replace as r...

Страница 23: ...ut Check burner injectors gas pressures probe Check gas valve gas supply and pressu res Check ignition and ionisation probes for correct position damage Go to Chart 5 Go to Chart 5 Replace PCB Check r...

Страница 24: ...ir retaining hooks Figure 26 Release the side panels by removing the screws on the upper and lower sides Figure 27 Remove the panels by swinging them out and lifting them up 18 6 Remove the combustion...

Страница 25: ...key into the outlet and remove the sump by turning anti clockwise Clean the sump using a dilute solution of bleach Apply a little silicone grease to the O ring and replace the sump so that the O ring...

Страница 26: ...it seals before re filling the boiler 19 3 For replacement of the following components it will be necessary to remove the boiler casing panels as described in Section 17 19 4 Domestic hot water sensor...

Страница 27: ...ctors and tighten ensuring that the injector size marked on each injector is the same as stated in the Technical Data section for the type of gas being used Replace the burner bar and re fit the burne...

Страница 28: ...the pump body Remove the motor as described above Remove the secondary water to water heat exchanger as detailed in 19 12 Remove the expansion vessel pipe by removing the clip on the pump body Remove...

Страница 29: ...ensuring all washers are fitted Replace damaged washers as necessary Open the isolating valves on the flow and return connections refill vent and re pressurise the system ensuring all joints are sound...

Страница 30: ...ler is turned off Disconnect the electrical connections to gas valve modulating coil Release the connection from gas valve and manifold inlet retaining the washers for use on reassembly Figure 47 Rele...

Страница 31: ...kwise to increase Anti clockwise to decrease Re connect the lead of gas valve coil After adjustment refit plastic cap on gas valve adjuster and remove gauge and leak test pressure test point 19 16 Exp...

Страница 32: ...ring all joints are sound 19 19 Hydroblock Drain the boiler s hydraulic circuit as detailed in 19 2 Remove the secondary heat exchanger as described in 19 12 Remove the pump assembly as described in 1...

Страница 33: ...connection from the boiler Either pop out the filter with a screw driver or disconnect the filter housing from the bottom of the hydroblock using a 24mm spanner Pop out the filter and clean or replace...

Страница 34: ...the gas circuit for soundness and the correct operation of the boiler 20 Gas Type Conversion Warning Gas conversion must be carried out by a competent person as defined in the Gas Safety and Use Regu...

Страница 35: ...003202166 12 SECONDARY HEAT EXCHANGER 24 kW SECONDARY HEAT EXCHANGER 30 kW 3003200026 3003200025 3003200183 3003200176 3003200177 3003202174 D R A C E C A F R E T N I 3 1 2 5 1 0 0 2 3 0 0 3 R O S N E...

Страница 36: ...www heatline co uk 25 28 Condensing Wall Mounted Combination Boiler User Instructions 34...

Страница 37: ...nce should not be used until fault has been rectified by a competent person VENTILATION On installation the boiler must be installed with minimum clearances of 50mm each side 200mm above 300mm below w...

Страница 38: ...run after shut down for a short while to dissipate any excess heat within the boiler ACCESS TO THE BOILER CONTROLS The boiler controls are sited at the bottom of the boiler s front case figure 1 BOIL...

Страница 39: ...ure of the boiler water falls below 6 o C When the temperature reaches 15 o C the boiler will shut down Note This device works irrespective of any room thermostat setting and will protect the boiler b...

Страница 40: ...Page 38 3005114697 38...

Страница 41: ...3003202303 01 Page 39 39...

Страница 42: ...Heatline Nottingham Road Belper Derbyshire DE56 1JT Tel 01773 596 099 Fax 01773 828 123 Email sales heatline co uk www heatline co uk...

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