DESCRIPTION
The REGENCY 4 Modulek series appliances are gas fired cast iron sectional boilers whose fea-
tures are high efficiency and low emissions.
The heat exchanger comprises:
- one front section
- a variable number of intermediate sections
- one rear section
connected to each other by means of biconical nipples.
The boiler is fitted with two multi-bar atmospheric gas burners (front and rear) made in stainless
steel, for operation with natural gas or LPG.
A motor-driven damper fitted before the draught diverter helps to reduce heat losses through the
chimney when the burner is switched off.
When Regency 4 Modulek series boilers operate in two stage mode, the damper runs accordingly
in three different situations:
when both burners are switched off, the damper shuts down the chimney, avoiding heat
losses through the chimney;
with one firing burner, the damper partially closes to avoid eccessive secondary air from
passing through the boiler
with both firing burners, the chimney remains completely open .
The control panel provides a selector to choose which of the two gas burners should run, thus
allowing boiler operation at minimum output and equal use of both burners.
To operate in the “ON-OFF” mode (i.e. firing both front and rear burners) the user should push the
relevant button on control panel (see § 1.6.2 for details).
NOMINAL HEAT OUTPUT
Model kW Btu/h
REGENCY 4 MODULEK/152 152.8 521,353
REGENCY 4 MODULEK/169 169.7 579,016
REGENCY 4 MODULEK/186 186.7 637,020
REGENCY 4 MODULEK/203 203.6 694,683
REGENCY 4 MODULEK/220 220.3 751,663
REGENCY 4 MODULEK/237 237.8 811,373
REGENCY 4 MODULEK/255 255.2 870,742
REGENCY 4 MODULEK/272 272.4 929,428
1
1.1 GENERAL REMARKS
1.2 BOILER MODELS
1
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