HARGASSNER Classic 22 - Page 48

48 HARGASSNER Heating technology for Biomass A 4952 Weng OÖ Tel.: +43/7723/5274-0 Fax: +43/7723/5274-5 office@hargassner.at
III
. No. G5d Parallel operation circuit 1+2
• No (without valve)
• No (valve available)
• Yes
. No. G5e Differential controller switch-over circuit 2
 Set from which temperature difference (circuit 1) on the lower-level circuit 2 is switched over
 Range: 1 - 20 °C
. No. G5f Differential controller switch-over circuit 2
 Set from which temperature (circuit 1) on the lower-level circuit 2 is switched
over
. No. G5g Differential controller Time delay for switch-over
 Setting the time delay for switch-over
. No. G6 External heat boiler
 Specify whether differential control of the external heat boiler should be car-
ried out using the mixer or the pump.
. No. G6a Differential controller Mixer run time
 Set the external heat boiler's mixer run time
 Range: 10 - 300 Sec.
. No. G6b Differential controller Return temperature
 Set the external heat boiler's return temperature
 Observe manufacturer's instructions
. No. G6c Differential controller Warning Return temperature
 Set below which return temperature of the external heat boiler a warning is
issued
 Observe manufacturer's instructions
. No. G6d Differential controller Time for warning
 Set how long the return temperature of the external heat boiler has to be
below the set value for a warning to be issued.
. No. G6e Differential sensor S2 External heat boiler
 Set which sensor should be used for differential control
• Accumulator sensor top / mid. / bott.
• Accumulator sensor middle top / middle bottom
• HWT sensor A
. No. G6f Differential controller Superelevation Heat source
 Set from which temperature superelevation the differential controller is to
become active
 Range: 1 - 50 °C
. No. G6g Differential controller Switch difference
 Set from which temperature difference between the two sensors being used
must be switched
 Range: 1 - 50 °C
. No. G7 Differential controller Safety circuit
 If the preset temperature is reached at the parametrised sensor, all the out-
puts on the differential controller board will be switched off.
 Range: 80 - 105 °C
 If 95 °C is exceeded at a sensor (excluding S1), then differential control will
be deactivated to prevent damage to the pumps
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No (without valve)
No. G5d Parallel operation circuit 1+2
No (valve available)
Yes
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Switch over to circuit 2 if difference to
circuit 1 small than
Default: 4 °C
No. G5e Differential controller
4 °C
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Switch over to circuit 2 if circuit 1
over
Default: 60 °C
No. G5f Differential controller
60°C
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Time delay for switch over to
circuit 2
Default: 1 min.
No. G5g Differential controller
1 Min
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with return mixer
No. G6 External heat boiler
Pump only
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Mixer runtime
Default 120 Sec.
No. G6a Differential controller
120 Sec
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Observe return temperature of heat source
acc. to manufacturer
Default: 60 °C
No. G6b Differential controller
60 °C
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Warning if return temperature not
reached
Default: 50 °C
No. G6c Differential controller
50 °C
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Time for warning
Default: 60 min.
No. G6d Differential controller
60 Min
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Acc. sensor top
No. G6e Diff. sensor S2
Acc. sensor mid
Acc. sensor bottom
Acc. sensor TPMO
Acc. sensor TPMU
HWT sensor A
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Superelevation of heat source
(External heat boiler)
Default: 10 °C
No. G6f Differential controller
10 °C
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Switch difference (External heat boiler)
Default: 5 °C
No. G6g Differential controller
5 °C
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Safety circuit at heat source (Sensor S1)
Default: 95 °C
No. G7 Differential controller
95 °C