Heating Return; Heating Supply - Bosch Greenstar FS Series Installation And Maintenance Instructions For Contractors

Residential gas condensing boiler
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Key to figure 6 Heating boiler KBR.. -3A:
[1]
Pre-wired low voltage installer connection box
[2]
Pressure Relief Valve (PRV)
[3]
Condensate hose
[4]
Flue connector for twin pipe adaptor
[5]
Air/gas premix chamber
[6]
Pre-wired high voltage installer connection box
[7]
Additional supply temperature limiter
[8]
Not used
[9]
Manual air bleed
[10]
Connection of optional Low Water Cut Off (LWCO)
[11]
Flue gas temperature limiter
[12]
Cover for maximum gas adjuster
[13]
Gas valve
[14]
Gas connection
[15]
Heating return connection
[16]
Heating supply connection
[17]
Low Loss Header with flow sensor
[18]
Fan
[19]
Electrode set
[20]
Primary heat sensor
[21]
Maximum safety sensor
[22]
Inspection and clean out cover
[23]
Condensate collector
[24]
Boiler circulator
[25]
Drain cock
[26]
Condensate trap
[27]
Heatronic boiler control
[28]
ON/OFF switch
[29]
Burner on indicator
[30]
Service button
[31]
Emission test button
[32]
Boiler high limit dial
[33]
Mounting socket for outdoor reset control
[34]
DHW Setpoint Dial
[35]
Keypad lock button
[36]
ECO button
[37]
Reset button
[38]
Boiler water pressure gauge
[39]
Display
[40]
Gas valve minimum adjuster
[41]
Gas inlet pressure test point
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
Information about the appliance
11

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