Technical pages 27-33
Power HT-A 430-650 kW
• Aluminium-Silicon exchanger with glass wool insulation: high annual efficiency, reliability and long life • Modulation ratio (1:5) • Digital control panel with back-lighted LCD display and advanced electronics to manage single and cascade installations • Easy to transport and to install (compact width-only 762 mm) • Low noise and emissions • Integrated management of solar collectors • Pump not included inside the boiler (see suggested pumps at the bottom of the page)
Outputs from 430 to 650 kW Hydraulic system Hydraulic connections on the top side Sticking pump check system Flow and return NTC sensors Premixed low-emissions burner
Thermoregulation system Built-in climatic regulation (outdoor sensor included) Mixed zones systems (high and low temperatures) zone controllers as optional Cascade system installation option (up to 16 boilers) NTC sensor for DHW cylinder control option Heating and DHW scheduler integrated in the control panel
Control system Full electronic anti-frost device Electronic thermometer Flow over-temperature thermostat
Power HT-A 1.430 Power HT-A 1.500 Power HT-A 1.570 Power HT-A 1.650 Product code
LSX
41143060
41150060
41157060
41165060
Nominal heat output
kW
400
470
540
610
Maximum heating heat output 80/60°C
kW
392,8
462
531,4
601
Maximum heating heat output 50/30°C
kW
422,4
498,2
574,6
651,5
Minimum heat output 80/60°C
kW
77
91
105
119
Minimum heat output 50/30°C
kW
84,8
99,8
115
130,4
Energetic efficiency 92/42/CEE
Average efficiency (DIN 4702-T8)
%
109,4
109,3
109,2
109,1
Nominal efficiency 80/60°C
%
98,2
98,3
98,4
98,5
Nominal efficiency 50/30°C
%
105,6
106
106,4
106,8
5
5
5
5
Minimum working temperature
°C
-5
-5
-5
-5
Heating system max pressure
bar
6
6
6
6
lt
73
84
97
106 60 (Ø250)
NOx Class (EN 483)
Water content Flue ducts max length
m
60 (Ø250)
60 (Ø250)
60 (Ø250)
Maximum flue mass flow rate
kg/s
0,188
0,22
0,253
0,286
Minimum flue mass flow rate
kg/s
0,038
0,044
0,05
0,057
Maximum flue temperature
°C
60
60
60
60
Dimensions (h x w x d)*
mm
1526x762x1882
1526x762x2192
1526x762x2192
1526x762x2192
Net weight
kg
540
598
636
674
Gas type Power consumption Suggested pumps
Natural Gas / LPG W
463
583
790
750
Magna 3 65-100**
Magna 3 65-120**
Magna 3 65-120**
Magna 3 80-100**
(*) Flue ducts and hydraulic pipes included (**) In case of Grundfos Magna modulating pump installation a signal converter (230V / 0-10V KPM) must be ordered (code LXO 00061010)
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