Biasi GARDAM90F.28SR Manuals

Manuals and User Guides for Biasi GARDAM90F.28SR. We have 1 Biasi GARDAM90F.28SR manual available for free PDF download: Service Manual

Biasi GARDAM90F.28SR Service Manual

Biasi GARDAM90F.28SR Service Manual (37 pages)

Wall hung, fan flue, room sealed gas boiler

Brand: Biasi | Category: Boiler | Size: 4.14 MB

Table of Contents

Table of Contents
3
Overall Information
4
Overall View
4
Hydraulic Diagram
4
General Access and Emptying Hydraulic Circuits
5
Body Panels
5
Access to the Sealed Chamber
6
Emptying the Primary Circuit
6
Emptying the D.h.w. Circuit
6
Diagrams
7
Wiring Diagram M90F.24S M90F.28S M90F.32S
7
Wiring Diagram M90F.24SR, M90F.28SR
8
Circuit Voltages
9
Primary Heat Exchanger
12
Characteristics
12
Removal
12
Cleaning
12
H.w. Heat Exchanger
13
Function
13
Removal
14
Pump
14
Function
14
Checks
14
Three Way Diverter Valve
15
Function
15
Checks
15
Removal of the Diverter Group and Its Internal Parts
16
Function
17
Selection and Adjustment Devices
17
Checking the Temperature
18
Dip
18
Ignition Gas Pressure Adjustment
18
Ignition Gas Pressure Adjustment
19
Checks
20
Thermal Control in the
22
Mode
22
Thermal Control in the
23
Mode
23
Function
24
- Modulating Gas Valve
  24
- Nomenclature of the Parts
  24
- Adjustment
  24
- Checks
  25
- Removal of the Gas Valve
  25
- Primary Circuit Flow Switch
  26
- Function
  26
- Checks
  26
- Removal
  26
- Expansion Vessel and
  27
- Function
  27
- Checks
  27
- Removal of the Expansion Vessel
  27
- Removal of the Temperature
  27
- H.w. Flow Switch, Filter and Flow Limiter
  28
- Function
  28
- Nomenclature and Location of Parts
  28
- Checks
  28
- Removal of the Flow Switch Sensor
  28
- Removal of the Flow Switch Group
  29
- Flow Limiter
  29
- Temperature Probe
  30
- Function
  30
- Checks
  30
- Removal
  30
- Function
  31
- Removal
  31
- Checks
  32
- Ignition and Detection Electrodes
  32
- Function
  32
- Removal
  32
- Safety Thermostat
  34
- Function
  34
- Checks
  34
- Removal
  34
- Short Spare Parts List
  35

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