Mamiya C28, C32, C24 manual Installation, Fitting the Flue System

Page 16

INSTALLATION

INSTALLATION

11 FITTING THE FLUE SYSTEM

The minimum and maximum equivalent length for

co---axial pipes ø 60---100 and ø 80---125 mm are given in Table 7 for mini HE C24 and mini HE C28 and in Table 8 for mini HE C32 .

The minimum and maximum equivalent length for ø 80

mmtwin pipe systems are given in Table 9 for mini HE

C24 and mini HE C28 and in Table 10 for mini HE C32.

Cut the flue duct at the same level of the air duct edge.

Cut this end

Groove

For roof flue systems having a flue length greater than 3m and all twin pipe systems, a condensate drain kit must be fitted at the lowest point in the system. See the list of optional extras (frame 9) for available drain kits.

Refer to the assembly instructions contained within the chosen flue kit packaging for the correct assembly and installation.

The horizontal sections of flue pipes must have a slope not less than 1.5 deg. (25 mm per metre) towards the boiler.

In the flue kit of pack B the flue pipe is angled within the air duct therefore the air duct must be horizontally installed.

If one or more extensions need to be used they must be adequately supported so that there is no sag in the flue pipe and a minimum fall of 1.5 deg. (25 mm per metre) over the whole length towards the boiler is ensured.

Table 7 mini HE C24, mini HE C28

 

 

 

 

 

 

 

 

 

 

Minimum

Maximum

 

 

 

 

 

 

Co

---axial 60---

100

0.3 (11.8”)

2.7

(8’ 10”)

 

 

 

 

 

 

Co

---axial 80---

125

0.5 (19.7”)

8.5

(27’ 10”)

 

 

 

 

 

 

 

Table 8 mini HE C32

 

 

 

 

 

 

 

 

 

 

Minimum

Maximum

 

 

 

 

 

 

Co

---axial 60---

100

0.3 (11.8”)

1.8

(5’ 11”)

 

 

 

 

 

 

Co

---axial 80---

125

0.5 (19.7”)

6.0

(19’ 8”)

 

 

 

 

 

Co---

axial Flue kits.

 

 

 

Horizontal.

For calculation of total flue length, the distance MUST be measured from the centreline of the concentric elbow to the end of the terminal.

Vertical outlet

For calculation of total flue length, the distance MUST be measured from the centreline of the outlet connector at the boiler top panel to the end of the terminal grille.

For each additional 45û and 90û flue bend used, the maximum permissible length of flue system must be reduced by 1 m or 1,5 m respectively.

Cutting lengths of flue and air ducts

Horizontal Concentric

Air duct

 

 

Wall thickness + 125 mm

Rear Outlet

 

Wall thickness + 160 mm

Rear outlet+Stand---off

 

Wall thickness + Gap +62 mm

Side Outlet --- RH

 

Wall thickness + Gap +208 mm

Side Outlet --- LH

 

 

Twin pipe flue kits

For calculation of total flue length, the distance MUST be measured from the centreline of the flue duct/air duct connection to the end of the flue outlet grille/air inlet duct.

For each additional 45û M&F and 90û M&F flue bend used, the maximum permissible length of flue system must be reduced by 0,9m or 1,65m respectively.

The restrictor to be used and the lengths of allowable equivalent flue outlet / air inlet ducts are indicated in Table 9 for mini HE C24, mini HE C28, in Table 10 for mini HE C32 and in the following graph.

The restrictor size is marked on its body.

N.B.: The air intake and the flue outlet must not terminate on opposite sides of the building.

Air intake adapter

Restrictor

Gasket

Table 9mini HE C24, mini HE C28

Equivalent pipe length

Restrictor

(air duct + flue duct)

 

 

 

Between 1 (39“) and 15 m (49’ 2”)

ø 50 mm

 

 

More than 15 m (49’ 2”) up to 30 m (98’ 5”)

ø 55 mm

 

 

Measure the wall thickness and, when using a side outlet, the

Table 10mini HE C32

 

gap between the inner wall and the boiler side casing.

 

 

Use the following chart to calculate the cutting length of air

Equivalent pipe length

Restrictor

duct.

(air duct + flue duct)

 

Mark the air duct making reference on the groove.

Between 1 (39“) and 24 m (78’ 9”)

ø 50 mm

 

 

16

mini HE --- Installation & Servicing

Page 15 Page 17
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Page 15 Page 17
Contents Installation and servicing Mini HE --- Installation & Servicing Document Amendments General Boiler DataPerformance Data --- Central Heating Domestic Hot WaterContents Benchmark Commissioning Checklist DetailsGeneral Boiler Water Connection Boiler ClearancesGAS Safety IntroductionOptional Extra Kits Safe HandlingFlue Installation Requirements GAS SupplySafe Handling of Substances Location of Boiler and Flue OutletWater Circulation System Water TreatmentAIR Supply Additional PumpsElectrical Supply RequirementsSize of expansion vessel Mini HE C24, mini HE C28Hydraulic Loss Remaining pump capacity General Boiler Control Interlocks Domestic HOT Water RequirementsGeneral Boiler Water Circuit Diagram Installation Installation Boiler AssemblyInstallation Unpacking Pack a contentsHardware pack contents Pack B contentsInstallation Fitting the Flue SystemRear Flue Assembly Refer to the following diagram for the model mini HE C32Twin Pipe Flue DuctWall Mounting Template rear flue Ring Installation Cutting the FlueFitting the Extension Kits Installation Fitting the Optional Roof Flue Roof Flue KIT CONTENTS/OPTIONSInstallation Flue Terminal Position Flue ArrangementAssembling the Roof Flue KIT Flue over 3 meters longInstallation Fitting the Wall Mounting Plate Fit the service valves, washers and tail pipes as shownMounting the Boiler ConnectionsSafety Valve Drain Condensate DrainLocate the gasket and flue turret on the top of the boiler Flues over 1 meter longIncoming mains wiring detail For external controls wiring see frameElectrical Connections Pictorial Wiring Installation Functional Flow Diagram Control pcbExternal Electrical Controls Electrical Connections for a Combi BoilerInstallation Initial Lighting Maximum valve setting To Adjust PressuresMinimum valve setting Anti Cycling Setting Commissioning and TestingElectrical Installation Gas InstallationGeneral Checks Installation GAS Conversion Handing OverServicing Servicing ScheduleServicing Removal of Outer and Inner Casing Servicing Burner Removal and Cleaning Cleaning the Heat ExchangerRE---ASSEMBLY Burner Pressure CheckServicing FAN and Venturi Removal and Cleaning Remove the fan by sliding it towards left see the arrowSpark and Detection Electrode Replacement Burner ReplacementBurner Injectors Replacement When replacing any componentServicing Overheat Thermostat Replacement Flue Temperature Probe ReplacementTemperature Probe Replacement Removal of CH temperature probeGAS Valve Replacement Expansion Vessel ReplacementVenturi Replacement Servicing FAN ReplacementAIR Pressure Switch Replacement Pump Replacement Complete Servicing Electronic CONTROL/IGNITION PCB Replacement Boiler mode setting Servicing CH Flow Switch Replacement CH Flow Switch Membrane ReplacementDHW Filter and Flow Limiter Replacement Servicing DHW Flow Switch ReplacementFlow limiter Servicing Primary Heat Exchanger Replacement Recuperator ReplacementServicing Diverter Valve Actuator Replacement Diverter Valve Internal Parts ReplacementServicing DHW Heat Exchanger Replacement CH Drain Cock ReplacementTo clean the condensate trap and drain Condensate Trap ReplacementTo replace the condensate trap Normal operation OFFFault Finding FindingFrom Fault finding Fault Finding Fault Refer back to page 52 of fault finding to continue Fault Finding From Burner mod. mini HE C28, mini HE C32 075535Fan mod. mini HE C28, mini HE C32 17398422 23 Installer Notification Guidelines GAS Boiler Commissioning Checklist Service Interval Record Technical Training Ideal boilersInstaller Water hot or Installer the contact fire not doesCorrectly Ignition at attempt Cleaning MaintenanceGAS of Escape Boiler the Light to Lights DiagnosticClearances Minimum

C28, C24, C32 specifications

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