Contents
General Information (G)
PHOTON range ..........................................4
Using this manual .......................................4
Warranty ....................................................4
Important notice to installers ......................5
Health and safety ....................................... 6
Uncrating / preparation ...............................7
Technical Data (TD)
Technical data .............................................8
Dimension Diagrams ...................................9
Dimension Tables ........................................11
Unit Dimensions ..........................................11
Combustion air, flue and gas connections ...11
Clearance distances ....................................11
Installation (I)
Heater location ...........................................12
Hanging the heater ..................................... 12
Combustion air supply / flue arrangement ...12
Type B appliances ........................................ 14
Type C appliances .......................................15
Gas connection ........................................... 17
Electrical supply and connections ................18
Thermostat controls ....................................19
Wiring connections .....................................20
Commissioning and Operation (C)
Pre-start checks ........................................... 21
Start up ......................................................21
Air / gas ratio controls .................................22
Gas valve adjustment ..................................22
Gas conversion ...........................................23
Commissioning checks ...............................23
Commissioning - handover .........................24
Operation ...................................................26
Maintenance and Servicing (MS)
Model 10-20 component layout ..................29
Model 25-70 component layout ..................30
Model 100 component layout .....................31
Model 120 component layout .....................32
Maintenance schedule ................................33
Heat exchanger maintenance .....................33
Replacement of gas valve ............................33
Venturi cleaning and replacement ...............35
Combustion fan cleaning and replacement .36
Burner cleaning and replacement ...............36
Burner chamber / tube insulation check and
replacement ................................................ 37
Replacement of burner probes ....................38
Replacement of LC1 and LC3 safety
thermostats (models 25-120) ......................40
Replacement of LC1 and LC3 safety
thermostats (models 10-20) ........................40
Replacement of ignition controller ..............41
Replacement of ignition transformer ...........41
Replacement of lockout circuit board ..........41
Replacement of fan relay ............................41
Replacement of air circulation fan ...............41
Flue and combustion air ..............................41
Fan motor and fan maintenance .................42
Unit operation ............................................42
Fault Finding (FF)
Fault finding ...............................................43
Spare Parts (SP)
Spare parts. ................................................45
ErP Table (ErP)
ErP table - G20 ...........................................47
ErP table - G25 ...........................................48
ErP table - G25.3 ........................................49
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