User Manuals: QHT RIVA FP Gas Boiler

Manuals and User Guides for QHT RIVA FP Gas Boiler. We have 1 QHT RIVA FP Gas Boiler manual available for free PDF download: Service Instructions Manual

QHT RIVA FP Service Instructions Manual

QHT RIVA FP Service Instructions Manual (52 pages)

WALL HUNG GAS BOILER FOR CENTRAL HEATING SUPPLY

Brand: QHT | Category: Boiler | Size: 10 MB

Table of Contents

Table of Contents

4
- Overall View
  6
- Hydraulic Diagram
  6
- Electrical Diagram
  7
- Gas Adjustment Data
  8
- Fault Finding
  9
- Circuit Voltages
  10
- Operation Lights
  11
- Start up Checks
  11
- Gas Conversion
  12
Table of Contents

14
- General Access and Emptying the Hydraulic Circuits
  
  17
  - Access to the Sealed Chamber
    17
  - Body Panels
    17
  - Control Panel
    17
  - Emptying the Primary Circuit
    17
- Primary Heat Exchanger
  
  19
  - Nomenclature
    17
  - Cleaning
    19
- Pump
  
  21
  - Function
    19
  - Removal
    19
  - Checks
    21
- Three Way Diverter Valve
  
  23
  - Anti-Frost System
    25
  - Checking the Temperature
    25
  - Checks
    25
- Control P.C.b. 11.62
  
  25
  - Dip-Switch Selectors
    25
  - Function
    25
  - Ignition Gas Pressure Adjustment
    25
  - Max C.h. Power Regulation
    25
  - Operation Lights
    25
  - Selection and Adjustment Devices
    25
  - Hydraulic Parts Checking System
    29
- Fan and Air Pressure Device 11.61
  
  32
  - Checks
    32
- Full Sequence Ignition Device S4567A-1019
  
  33
  - Checks
    33
  - Function
    33
  - Ignition and Control Sequence
    33
- Modulating Gas Valve
  
  35
  - Removal
    33
  - Adjustment
    35
  - Checks
    35
  - Function
    35
  - Nomenclature
    35
  - Removal of the Gas Valve
    35
- Primary Circuit Flow Switch
  
  37
  - Checks
    37
  - Function
    37
  - Removal
    37
  - Checks
    40
  - Function
    40
  - Removal
    40
- Fan, Venturi Device and Air Pressure Switch
  
  43
  - Removal of the C.h. Expansion Vessel
    40
  - Removal of the D.h.w. Expansion Vessel
    40
  - Removal of the Temperature-Pressure Gauge
    40
  - Checks
    43
  - Function
    43
  - Removal of the Fan
    43
- Ignition and Detection Electrodes, Burner and Injectors
  
  45
  - Checks
    45
  - Function
    45
  - Removal
    45
- Safety Thermostat
  
  47
  - Checks
    47
  - Function
    47
  - Removal
    47
- Electric Resistances
  
  49
  - Fan Resistance
    49
- Short Spare Parts List
  
  50
  - Gas Valve Resistance
    49
  - Pump Resistance
    49
  - Temperature Probe NTC Resistance
    49

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