35(6(17$7,21
The boiler THR 10-100 has the following compo-
nents under its cover:
- Two 50 kW modules, each equipped with the fol-
lowing:
• a boiler shell featuring:
. a high performance condensing heat ex-
changer made from tubular fins,
• a premixed burner with a heat resistant stain-
less steel grate,
• a variable-speed fan (230 V AC - 50 Hz - 39 V
DC) controlled by the regulator,
• a 24 Volt gas valve unit with dual air pressure
valve control,
• a heating circulator,
•“overheat” safety cut-out with manual reset
(100 °C),
• a water pressure sensor,
•“flue gas overheat” safety cut-out with manual
reset (85 °C),
• a condensate siphon trap,
• a 230 V power transformer,
• a 24 V ignition transformer,
• an automatic bleed,
• a centrifugal degasser,
• a-3 channel motorised selector valve
1
,
- an LGM box (module management). It features:
• two LGMs,
• two LGM control panels each featuring:
. flame ionization monitoring,
. on/off switch,
. heating setting potentiometer,
. domestic hot water setting potentiometer,
. Summer/Winter potentiometer,
. operating sequence or fault display,
. flame indicator,
. alarm indicator,
. display of water pressure in the heating
network,
. reset button in the event of a failure or an
alarm,
. three A, B and C buttons reserved for the
heating engineer (specific functions),
- an RVA box for managing the cascade and multi-
circuits featuring:
• a series B RVA 47.320 regulator,
• two OCI 12 interfaces,
- an outside sensor QAC 31,
- two heating flow-return temperature sensors
QAD 21,
237,216
- RVA 46 regulator making it possible to control the
flow temperature of a heating circuit (with a mixer
valve or with a circulating pump) according to cli-
matic conditions with or without room influence.
(Two RVA 46 regulators can be integrated into
the RVA box of the THR 10-100).
1. THR 10-100 CS model only.
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