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WarmFlow Utility U70HE User Manual

High efficiency condensing boilers
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Boiler Manual
Incorporating:
High Efficiency
Condensing Boilers
For use with kerosene only
Models covered by this manual:
U-Series
Utility
Utility Pumped
Utility System
Utility Combi
K-Series
Kabin Pak
Kabin Pak Pumped
Kabin Pak System
Kabin Pak Combi
Leave this manuaL with the end user
Guarantee Registration
User Instructions
Installation Instructions
Service Instructions
Service Record
U70HE
U90HE
UP70HE
UP90HE
US70HE
US90HE
UC70HE
UC90HE
K70HE
K90HE
KP70HE
KP90HE
KS70HE
KS90HE
KC70HE
KC90HE
U120HE
U150HE
UP120HE
UP150HE
US120HE
K120HE
K150HE
KP120HE
KP150HE
KS120HE

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Summary of Contents for WarmFlow Utility U70HE

  • Page 1 Boiler Manual Incorporating: Guarantee Registration User Instructions Installation Instructions Service Instructions Service Record High Efficiency Condensing Boilers For use with kerosene only Models covered by this manual: U-Series Utility U70HE U90HE U120HE U150HE Utility Pumped UP70HE UP90HE UP120HE UP150HE Utility System US70HE US90HE US120HE...
  • Page 2 Warmflow or an OFTEC registered technician. NI Customers Only Warmflow Engineering Service division (NI) provides an excellent back-up service, operating a team of OFTEC trained engineers who can meet all the servicing, commissioning and breakdown requirements for your appliance.

  • Page 3: Table Of Contents

    Contents Page User Instructions ..................................2 Condensing Boiler Installation Requirements ........................4 Condensing Combi Boiler Pre-Installation Requirements....................5 1.0 General Information Introduction ..............................6 General Requirements .............................6 Combi General Requirements ..........................7 Baffle Positioning .............................8 Components ..............................9 2.0 Technical Details Combi Sequence of Operation Flow Chart ....................8 Dimensions ..............................9 Flue Options, Components & Dimensions......................24 Condensate Disposal ............................27 Technical Data ...............................28 3.0 Electricity Supply & Wiring Details...

  • Page 4: User Instructions

    If the only reset the burner twice in succession. If the only reset the burner twice in succession. If the burner continues to lockout contact Warmflow or burner continues to lockout contact Warmflow or burner continues to lockout contact Warmflow or your service engineer.
  • Page 5 These switches can be replaced by the optional two channel digital programmer, instructions for use are provided in the main boiler handbook. This boiler must be serviced annually. Contact Warmflow for further details. In the event of a breakdown please contact your commissioning engineer who should then contact our service department whilst at your home, to report the fault.

  • Page 6: Condensing Boiler Installation Requirements

    CONDENSING BOILER INSTALLATION REQUIREMENTS The Warmflow condensing boiler can be fitted to most installations using standard practices and techniques. There are however a number of considerations that must be taken into account. All existing systems must be properly flushed to remove any sediment/ sludge in order to prevent any blockage or reduction in efficiency of the boiler.

  • Page 7: Condensing Combi Boiler Pre-Installation Requirements

    Where the mains water pressure is supplied via a borehole pump and accumulator the pressure variation must not affect the thermostatic mixer valve. Contact Warmflow for further details. The hardness of the mains water supply. Systems with hard water must be fitted with a suitable chemical scale preventer (eg Fernox Quantomat or Combimate).

  • Page 8: General Information

    Regulations Section 6, Part F Northern Ireland and Part L Republic of Ireland. Warmflow oil fired condensing boilers are designed to burn Class C2 (28 sec redwood) kerosene only and to be used on a fully pumped system, and are suitable for connection to sealed heating systems.

  • Page 9: Combi General Requirements

    1.3 Combi General Requirements The boiler will have a DHW priority when both domestic hot water (DHW) and central heating (CH) are selected. So if the flow switch is closed or the heat store has not been satisfied the entire output of the boiler is directed to DHW before the boiler will switch over to CH.

  • Page 10: Baffle Positioning

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  • Page 11: Components

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  • Page 14 1.5.4 U-Series Utility – System (USHE) – Key Components 1. Pumped (UPHE) Boiler Assembly 2. System Kit (SK1) 3. Pressure Gauge 4. Expansion Vessel 5. Filling Loop 6. Heating Flow Connection 7. Heating Return Connection 1.5.5 U-Series Utility – Combi (UCHE) – Key Components 1. Heat Exchanger 2. Heat Store 3. Condensing Unit 4. Service Door 5. Pipework Assembly 6. Plate Heat Exchanger 7. Twin Head Pump 8. Condensate Trap 9. Service Door 10. Service Door Cover 11. Control Panel 12. Expansion Vessel 13. Riello RDB 2.2 Burner 14. Heat Exchanger Baffles Page 2...
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  • Page 18 1.5.9 K-Series Kabin Pak – System (KSHE) – Key Components 1. Pumped (KPHE) Boiler Assembly 2. System Kit (SK1) 3. Pressure Gauge 4. Expansion Vessel 5. Filling Loop 6. Heating Flow Connection 7. Heating Return Connection 1.5.10 K-Series Kabin Pak – Combi (KCHE) – Key Components 1. Heat Exchanger 2. Heat Store 3. Condensing Unit 4. Service Door 5. Pipework Assembly 6. Plate Heat Exchanger 7. Twin Head Pump 8. Condensate Trap 9. Service Door 10. Service Door Cover 11. Control Panel 12. Expansion Vessel 13. Riello RDB 2.2 Burner 14. Heat Exchanger Baffles Page 6...
  • Page 19 1.5.11 Combi Control Panel Layout Control Mains On High Limit Tripped Burner Lockout Thermostat Lamp (Green) Lamp (Yellow) Lamp (Red) High Limit Thermostat Reset HW On/Off CH On/Off (Underneath) Switch Switch 1.5.12 Combi Pipe Layout (UCHE & KCHE Models) Page 7...

  • Page 20: Technical Details

    2.0 Technical Details 2.1 Combi Sequence of Operation Flow Chart Power Timer Calling For Heat Selected Flow Switch Closed DHW Tank DHW Pump Stat Satisfied Only Runs Pump Overrun HW Limit Burner Stat Satisfied Selected Stat Satisfied Stops DHW Pump CH Pump Boiler Limit Press Only Runs Only Runs Stat Tripped Reset Button...

  • Page 21: Dimensions

    2.2 Dimensions 2.2.1 U-Series Utility (UHE, UPHE & USHE Models up to 120HE)              U120HE DIMS MODEL 600 413 865 766 134 666 86 50 687 21 104 226 47 41 390 104 54 91 718 812 600 413 865 766 134 666 86 50 687 21 104 226 47 41 390 104 54...
  • Page 22 2.2.3 U-Series Utility (UCHE Models)              UCHE DIMS MODEL 600 595 865 766 134 388 207 666 47 226 42 94 718 91 54 104 390 71 104 197 Page 20...
  • Page 23 2.2.4 K-Series Kabin Pak (KHE, KPHE & KSHE Models up to 120HE)            K120HE DIMS MODEL 700 413 900 210 705 700 413 900 210 705 700 413 900 210 705 2.2.5 K-Series Kabin Pak Base Tray (KHE, KPHE & KSHE Models up to 120HE)     FRONT K120HE BASETRAY DIMS ...
  • Page 24 2.2.6 K-Series Kabin Pak (150HE Models)            K150HE DIMS MODEL 1155 K150HE 595 997 876 1155 93 155 850 100 100 320 122 630 120 KP150HE 595 997 876 1155 93 155 850 100 100 320 122 630 120 2.2.7 K-Series Kabin Pak Base Tray (150HE Models) ...
  • Page 25 2.2.8 K-Series Kabin Pak (KCHE Models)            MODEL KCHE DIMS 700 600 900 770 210 396 209 92 161 52 50 705 117 67 67 415 65 2.2.9 K-Series Kabin Pak Base Tray (KCHE Models)      FRONT KCHE BASETRAY DIMS ...

  • Page 26: Flue Options, Components & Dimensions

    2.3 Flue Options, Components & Dimensions The use of any flue system other than that supplied or recommended by the manufacturer will invalidate the warranty. 2.3.1 HE Low Level Balanced Flue Kit (FBF) Comprising the following four main components. 2.3.2 Plume Management Kit Plume Management Kits are available for our range of appliances. Please refer to the Installation Instructions supplied with the kits.
  • Page 27 2.3.3 Warmflow HE Boiler Flue Components: 80/125 Ø Note: 1. Flue fitting kit required. 2. If terminal is less than 2 metres above ground level terminal guard must be fitted. 3. Extension pipes and flue adaptor lengths quoted are effective lengths and not the actual length of the piece. 4. All dimensions in mm unless otherwise stated. Page 25...
  • Page 28 2.3.4 Vertical & High Level Terminal Options BOILER TOTAL EQUIVALENT FLUE LENGTH (m) OUTPUT Vertical Balanced Flue High/Low Level Balanced Flue (kW) Note: 1. All flues can utilise any combination of bends, straights, adaptors and terminals. 2. Ensure flue is arranged such that it falls continuously towards the boiler. 3. The Low Level, High Level and Vertical Balanced Flue Systems can use any combination of flue extension pieces up to the maximum equivalent length depending upon boiler output as illustrated in the above table. Page 26...

  • Page 29: Condensate Disposal

    2.4 Condensate Disposal The Warmflow high efficiency condensing boiler is supplied with a factory fitted, self sealing condensate trap. The trap has been fitted inside the boiler casing to the right hand side. The condensate drainage pipe within the boiler is a flexible plastic hose which can be trimmed to length.

  • Page 30: Technical Data

    2.5 Technical Data 2.5.1 U-Series Utility – Pre-Wired (UHE) MODEL U70HE U90HE U120HE U150HE 17.6 23.5 38.5 Nominal 4.7 27. 27. 32.7 Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 92,380 99,050 ,600 2,629 131,362 50,28 Nominal 5.3 18.4 24.4 46.8 62,600 83,175 102,400 136,139 Heat Input Btu/hr...
  • Page 31 2.5.2 U-Series Utility – Pumped (UPHE) MODEL UP70HE UP90HE UP120HE UP150HE 27. 32.7 38.5 Nominal 4.7 17.6 23.5 27. Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 92,380 99,050 ,600 2,629 131,362 50,28 46.8 Nominal 5.3 18.4 24.4 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175...
  • Page 32 2.5.3 U-Series Utility – System (USHE) MODEL US70HE US90HE US120HE Nominal 4.7 17.6 23.5 27. 27. 32.7 Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 99,050 92,380 ,600 Nominal 5.3 18.4 24.4 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175 95,550 95,550 102,400 6,000 Burner RDB 2.2 5-2...
  • Page 33 2.5.4 U-Series Utility – Combi (UCHE) MODEL UC70HE UC90HE Nominal 4.7 17.6 23.5 27. Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 Nominal 5.3 18.4 24.4 62,600 83,175 Heat Input Btu/hr 52,50 75,000 75,000 95,550 Burner RDB 2.2 5-2 RDB 2.2 2-26 Head TSH T2SH Secondary Air Damper...
  • Page 34 2.5.5 K-Series Kabin Pak – Pre-Wired (KHE) MODEL K70HE K90HE K120HE K150HE 38.5 Nominal 4.7 17.6 23.5 27. 27. 32.7 Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 92,380 99,050 ,600 2,629 131,362 50,28 Nominal 5.3 18.4 24.4 46.8 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175...
  • Page 35 2.5.6 K-Series Kabin Pak – Pumped (KPHE) MODEL KP70HE KP90HE KP120HE KP150HE 38.5 Nominal 4.7 17.6 23.5 27. 27. 32.7 Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 92,380 99,050 ,600 2,629 131,362 50,28 Nominal 5.3 18.4 24.4 46.8 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175...
  • Page 36 2.5.7 K-Series Kabin Pak – System (KSHE) MODEL KS70HE KS90HE KS120HE Nominal 4.7 17.6 23.5 27. 27. 32.7 Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 99,050 92,380 ,600 Nominal 5.3 18.4 24.4 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175 95,550 95,550 102,400 6,000 Burner RDB 2.2 5-2...
  • Page 37 2.5.8 K-Series Kabin Pak – Combi (KCHE) MODEL KC70HE KC90HE Nominal 4.7 17.6 23.5 27. Heat Output Btu/hr 50,000 60,000 7,650 7,650 80,000 92,380 Nominal 5.3 18.4 24.4 Heat Input Btu/hr 52,50 62,600 75,000 75,000 83,175 95,550 Burner RDB 2.2 5-2 RDB 2.2 2-26 Head TSH T2SH Secondary Air Damper...

  • Page 38: Electricity Supply & Wiring Details

    3.0 Electricity Supply & Wiring Details 220 – 240V. PH, 50 Hz The boiler/burner and other external electrical equipment should be wired with heat resistant cable via a fused double pole isolating switch which should be fitted with a 5 amp fuse. The appliance must be effectively earthed and all external wiring should comply with current IEE Regulations.

  • Page 39: Combi Wiring Details

    3.3 Combi Wiring Details 3.3.1 Wiring Diagram Page 37...
  • Page 40 3.3.2 Wiring Schematic Page 38...
  • Page 41 3.3.3 Fitting a Room Thermostat to a Combi ROOM THERMOSTAT Remove the purple wire from no 5 and no 28 on the PCB and wire the thermostat as shown. The room thermostat should be located where it is not subjected to extraneous heat gains, direct sunlight or draughts. 3.3.4 Fitting Frost Protection to a Combi PIPE THERMOSTAT FROST THERMOSTAT...

  • Page 42: Installation Of A Combi Optional Programmer (Pc)

    3.4 Installation of a Warmflow Combi Optional Programmer (PC1) Disconnect the electrical supply. Drop down control box front (2 screws). Disconnect the 6 pin plug from the CH/HW on/off switched. With a sharp knife cut out the outline of the panel knockout through the facia label from the front of the panel.

  • Page 43: Remote Timers For Combis

    3.5 Remote Timers for Combis 3.5.1 Installation of a remote two channel programmer (option 1) Connecting the programmer in this manner will bypass the CH and HW on/ off switches on the boiler control panel. A separate connection to the boiler 3 pin mains plug is NOT required. Inside the boiler control panel, remove the purple and white wires connecting terminals 5 and 3 on the terminal block with terminals 9 and 28 on the PCB.

  • Page 44: Optional Programmer (Pu) For Non-Combi Models

    3.6 Optional Programmer (PU1) for Non-Combi Models 3.6.1 Programmer Control Box Wiring Diagram 3.6.2 General Requirements The optional programmer as supplied will supply power to the pump and burner via the central heating channel. When connecting to external controls, eg ‘Y’ plan or ‘S’ plan it will be necessary to remove the loop between 3 and 2 on the programmer terminal block.
  • Page 45 3.6.3 Programmer Installation Disconnect electrical supply. Drop down control box front (2 screws). Secure control box to the horizontal casing bracket (2 screws) and right hand side ( screw). Connect the thermostat, circulating pump and the mains supply to the leads on the rear of the control box.
  • Page 46 3.6.4 Honeywell ‘Y’ Plan – Independent CH & DHW (Fully Pumped Only) Note: Before fitting programmer remove loop between 3 and 2 on the terminal block. Page 44...
  • Page 47 3.6.5 Honeywell ‘S’ Plan – Independent CH & DHW (Fully Pumped Only) Note: Before fitting programmer remove loop between 3 and 2 on the terminal block. Page 45...

  • Page 48: Oil Supply

    4.0 Oil Supply Oil Tank Steel tanks constructed to BS799 : PART 5 should be painted on the outside only and mounted on piers to prevent corrosion. Plastic oil tanks are also available and can be suitable for installation at ground level. However, oil should never be stored in translucent plastic containers.

  • Page 49: Two Pipe System

    4.2 Two Pipe System Total Maximum Pipe Length (m) Head H(m) ID 8mm ID 10mm 4.3 De-aerator System For maximum pipe length and lift contact de-aerator manufacturer. Page 47...

  • Page 50: One Pipe Lift System

    4.4 One Pipe Lift System Note: The pump vacuum should not exceed a maximum of 0.4 bar. Above this gas is released from the oil thus leading to burner lock out. Total Maximum Pipe Length (m) Head H(m) ID 8mm ID 10mm Page 48...

  • Page 51: Flues

    5.0 Flues 5.1 Installation of Flues Page 49...
  • Page 52 5.1.1 Installation of a Balanced Flue (FBF) Make a suitable sized hole in the wall or ceiling for the flue. For the dimensions of the boiler, see the Dimensions Section of this manual. For the dimensions of the flue system, see the Flue Kits & Dimensions Section of this manual. Note: The cavities around the opening must be sealed and protected by a non- combustible sleeve.

  • Page 53: Conventional Flues

    Only proprietary flue systems designed specifically for use with oil-fired condensing boilers may be used. The flue system manufacturer’s installation instruction must be followed. For recommended conventional flue systems, contact Warmflow. 5.3 Low Level Balanced Flue Terminal Positions Attention should be given to the position of the flue discharge; we recommend the following guidelines be adopted. The flue should not discharge beneath opening windows or near other accesses to the building.
  • Page 54 MINIMUM DISTANCES TO TERMINALS IN MILLIMETRES AS MEASURED FROM THE TOP OF THE CHIMNEY OR THE RIM OF A LOW LEVEL DISCHARGE OPENING Directly below an opening, air brick, opening window etc. Horizontally to an opening, air brick, opening window etc. Below a gutter, eaves or balcony with protection. Below a gutter or a balcony without protection. From vertical sanitary pipework. From an internal or external corner or surface or boundary alongside the terminal.

  • Page 55: Air Supply For Combustion & Ventilation

    6.0 Air Supply for Combustion & Ventilation (see BS5410) 6.1 Open Flue Boilers When the boiler is sited in a cellar where the only access for combustion and ventilation air is at high level then the combustion air should be ducted to low level. Combustion Air Supply Boiler in Room Boiler in Compartment 6.2 Balanced Flue Boilers – Boilers in a Compartment Air Supply for Ventilation...

  • Page 56: Installation Requirements

    7.0 Installation Requirements The boiler installation must be in compliance with BS540 : PART  and the Building Regulations. 7.1 General Requirements 7.1.1 Hearth The boiler has a hearth temperature of between 50°C and 85°C and should be stood on a rigid, non-porous, non-combustible base, which is not softened by warmth, to comply with the Building Regulations.

  • Page 57: Sealed Systems

    7.2 Sealed Systems 7.2.1 Expansion Vessel Refer to BS7074: PART  and BS5449 for details of expansion vessel sizing. The values given in the table below are for total system volumes which include the primary water capacity of the boiler which can be found in the Technical Data section of this manual.

  • Page 58: Combi Domestic Hot Water

    Although many of the DHW components are designed to resist lime scale formation, in areas of hard water it may still be necessary to fit an inline chemical water softener. For further information contact Warmflow and your local water company. 7.3.4 Flow Restrictor...

  • Page 59: Burners

    8.0 Burners 8.1 RDB Burner 1. Pump 5. Air Damper Adjustment Screw 2. Control Box 6. Air Tube Connection (Supplied with BF Kit) 3. Reset Button with Lock-Out Lamp 7. Pump Pressure Adjustment Screw 4. Flange with Insulating Gasket 8. Pressure Gauge Port 8.2 Oil Pump The burner is supplied for use with a one pipe system. For use on a two pipe system, it is necessary to remove the return port plug and fit a small by-pass plug as shown.

  • Page 60: Electrode Setting

    8.3 Electrode Setting When removing or replacing the nozzle, move the electrodes forward to avoid the risk of damage. The electrodes are slackened by unscrewing the brass post that passes from the electrode holder out of the side of the burner. When work is complete, ensure the electrodes are reset as shown and secured by tightening the brass post. 8.4 Burner Start-Up Cycle Normal Lock-out due to failure to light Thermostat Motor Ignition Transformer Valve Flame Lock-Out Lamp ~ 12s ~ 12s ~ 5s 8.5 Air Damper Adjustment The air damper is set in factory. This regulation is purely indicative. Each installation however, has its own working conditions: actual nozzle output;...

  • Page 61: Commissioning & Servicing

    9.2 Servicing 9.2.1 General Requirements It is recommended that the appliance is serviced annually by a Warmflow or an OFTEC registered service technician in accordance with the recommendations laid out in OFTEC’s technical information book 2 – ‘Pressure Jet Appliances –...

  • Page 62: Burner Fault Finding

    10.0 Burner Fault Finding 10.1 Riello RDB Page 60...

  • Page 63: Combi Fault Finding . Central Heating

    11.0 Combi Fault Finding 11.1 Central Heating Switch on power, set selectors for CH on and DHW off. Set all controls to call for heat. Check all valves are open and Does the Do radiators pump is working, check pressure, burner fire? get hot? check all air is vented.

  • Page 64: Domestic Hot Water

    11.2 Domestic Hot Water Switch on power, set selectors to CH off and DHW on. Is there continuity Is DHW pump Check wiring, replace across connection 20 working? tank thermostat. and 21 on the PCB? Is there continuity Check wiring, replace across 25 and 27? relay, replace PCB.

  • Page 65: Optional Boiler Mounted Digital Timer

    12.0 Optional Boiler Mounted Digital Timer 12.1 Operating Instructions 12.1.1 After Installation When you first install the Cr2032 battery (by removing the clear plastic strip from the rear of the timer) you must press the ‘RESET’ button, the LCD display will display fully for 3 seconds. Then LCD display will change to ‘5:2d’. You can press DAY button to select ‘7d’, ‘24H’...
  • Page 66 12.1.2 Built in Programme For convenience, the timer module has a built in programme, however, it can be easily adjusted (see section 2.5 To Change the Programmes). The timer offers 3 options for both CH and HW programme period. OFF: Off all the time. AUTO: To run your time schedule for period one or two or three each day.
  • Page 67 12.1.5 To Set Programme Period Press and hold DAY button and press MIN until the correct programme period is displayed. Set Day Programme Period 1 On/Off Mon – Fri Mon – Fri Time Schedule Time Schedule Switching CH/CH1 HW/CH2 CH/CH1 HW/CH2 PERIOD  ON 06:30 06:30 07:30 07:30 PERIOD  OFF 22:30 22:30 22:30 22:30 Set Day Programme Period 2 On/Off Mon – Fri...
  • Page 68 12.1.8 Manual Select Press SELECT to toggle through ON / AUTO / OFF modes as indicated by the timer status. ON mode turns on the timer. OFF mode turns off the timer. AUTO mode runs the set programme. 12.1.9 Manual Select This function is only applicable when your timer is set on AUTO mode. You can temporarily override the normal switching times by pressing the ADV key.

  • Page 69: Spares

    13.0 Spares 13.1 RDB 2.2 Spares 2908126 (5) - 05/2008 No CODE 3514157 3514257 3514557 DESCRIPTION No CODE 3514157 3514257 3514557 DESCRIPTION 3005787 • • • Gasket 5 3000439 • • • Pump Seal 3006384 • • • Flange 6 3020475 • •...

  • Page 70: Rdb 3.2 Spares

    13.2 RDB 3.2 Spares No CODE 3748941 DESCRIPTION No CODE 3748941 DESCRIPTION 3005795 • Gasket 8 3003602 • Connector 3008637 • Flange 9 3005720 • Flexible Oil Line 300574 • End Ring 20 3008964 • Motor 300573 • Diffuser Disc 2 3000443 •...

  • Page 71: Pipe Spares

    13.3 Pipe Spares Utility Pumped & System Models - UP70HE, UP90HE, UP20HE, US70HE, US90HE & US20HE Pump Flow Pipe (22mm) 3015 From Boiler to Pump (22mm) 3017 Expansion Vessel Pressure Hose 3020 Kabin Pak Pumped & System Models - KP70HE, KP90HE, KP20HE, KS70HE, KS90HE & KS20HE Pump Flow Pipe (22mm) 3015 From Boiler to Pump (22mm)
  • Page 72 13.3 Pipe Spares cont’d Utility and Kabin Pak Combi Models - UC70HE, UC90HE, KC70HE & KC90HE From Boiler to Gate Valve From Gate CH Flow from Pump 3097 Valve to Pump 3100 3098 From Plate Heat Expansion Vessel Exchanger to Boiler Pressure Hose Return 3096 3020 From Heat Store to Plate From Flowswitch to Mixing From Plate Heat Heat Exchanger Valve & Plate Heat Exchanger Exchanger to Mixing Valve 1997 1992 1994 DHW Flow from Mixing Valve From Strainer to Flowswitch & Filling Loop 3101 3099 Page 70...

  • Page 73: Short Parts List - Boiler

    13.4 Short Parts List – Boiler Part Description Code Flow Switch 476 Tank & Boiler Control Thermostat 23 Boiler Limit Thermostat (Combi Models) Tank Limit Thermostat 226 Pump Overrun Thermostat 308 Plate Heat Exchanger Twin Head Pump 230 5/60 Pump (for replacement head) 3 Pole Relay 827 Auto Air Vent C/W Check Valve Pressure Relief Valve...

  • Page 74: Your Guarantee, Terms & Conditions

    Warmflow against defective parts and faulty workmanship, for period of 2 months Warmflow will accept no liability for the from the date of installation, providing the cost of repairs resulting from incorrect boiler is installed and commissioned in...

  • Page 75: Commissioning/Service Record

    Boiler Serial No |__|__|__|__|__|__|__|__| In order that your boiler gives you many years of economical trouble free use and to validate the warranty, this boiler must be commissioned upon installation and serviced annually. Contact Warmflow for an approved engineer within your area.
  • Page 76 Notes Page 74...
  • Page 77 Notes Page 75...
  • Page 78 Notes Page 76...

  • Page 79: Product Details

    |__|__|__|__|__|__|__|__|__|__|__|__|__| |__|__|__|__|__|__|__|__|__|__|__|__|__| Your details will be used by Warmflow Engineering to provide customer services, information about extended warranties and for other marketing purposes. We will disclose your information to our service providers and agents for these purposes. Your details may also be used by other third parties for other marketing purposes. We and the third parties may contact you by mail, email or telephone.

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