Ensbury LT 70 - 580
We reserve the right to make changes to dimensions and construction
14
edition 12.2020
Hamworthy Heating Limited – Dorset BH17 ONF
5. Boiler control panel
5.1. Description
Ensbury LT boilers require the use of a control panel equipped with a regulator to avoid condensation in the heater
(NAVISTEM B2000 control panel with RVS 63 regulator or equivalent system).
The RVS 63 heating regulator enables management of the operation of the burner, heating circuits and domestic
hot water production.
It has digital logic to protect the boiler against cold starting and manage the flow of return water in relation to its
temperature by acting on the three-way valves of the heating circuit or to the boiler's insulation valve.
NAVISTEM B2000 control panels are supplied ready to be connected.
The regulators must be set according
to the recommendations in the instructions provided in the control panel to protect the boiler against
condensation.
Settings must also be adapted to comply with the system's hydraulic configuration (circuits for
heating, domestic hot water, etc.). The steel sheet housing is ready to be mounted on top of the boiler cover.
The electrical diagram is attached to the control panel.
5.2. Basic equipment NAVISTEM B1000 and B2000
-
Burner ON / OFF switch
-
6.3 A H 250VAC fuse for burner
-
6.3 A H 250VAC fuse(s) for regulator(s)
-
Safety thermostat
-
Regulating thermostat for 1
st
and 2
nd
speed (2
nd
speed inactive for a NAVISTEM B2000 panel with RVS 63
regulator)
-
Overheat indicator
-
Burner safety indicator
-
External fault indicator
-
Water thermometer
5.3. Additional equipment
-
Timer and pulse counter speeds 1 and 2
-
Dry contacts module / overheating fault, burner fault, burner operation at speed 1, burner operation at speed
2, external fault indicators
-
Dry contacts module and burner reset
-
Three-phase burner power supply
-
RVS 46 additional heating regulator (management of a mixer valve circuit)
5.4. Heating regulators
RVS 46 regulator (optional on the NAVISTEM B2000 control panel)
Regulator not included in the basic panel (sold as additional equipment):
-
Slave heating regulator to control a mixer valve heating circuit
-
Return temperature mixer valve protection: protection against condensation in the steel heater when the
RVS 63 outputs are already used to manage two heating circuits.
RVS 63 regulator (included as standard with NAVISTEM B2000 control panel)
Regulator enabling:
-
a burner to be run at one speed, two speeds or modulating
-
Running a direct heating circuit
-
Running two heating circuits or one heating circuit and a mixer valve protecting the heater in return
temperature
-
Running domestic hot water preparation
-
Achieve a tile effect with one or more other boilers equipped with a SIEMENS regulator (LPB
communication bus).
5.5. Cable set
On request, a set of cables with standardized 7 and 4 pin connectors (DIN 4791) can be supplied with the control
panel, as well as the connection cable to defer burner failures. The burners used should be equipped with suitable
connectors.
Summary of Contents for Ensbury LT 70
Page 2: ......
