STOKVIS ENERGY SYSTEMS ECONOFLAME R40, Руководство по установке

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Controls
Basic controls and connections
Control by building management system
Boiler enable signal
Temperature or capacity setpoint
19
Basic controls and connections
The standard version of the R40 is
equipped with a LMS14 boiler manage-
ment unit. This controller controls both
the burner safety operation and the
temperature regulation of the boiler.
The LMS14 includes the following
func tions:

Weather compensation (with optional
outdoor sensor)

Connection possibility for external
gas valve and/or room fan. See
chap ter "Accessories" for combinations
with an OK/Alarm contact

Master/Slave cascade control (with
optional BUS communication
modu les).
When additional control of sec o ndary
heating zones or cascade systems are
required, the R40 can be extended with
different additional controls.
Explanati on of these controls can be
found in the next sections.

Electronic high limit thermostat

Electronic flue gas temperature limiter

Primary boiler pump control (via
re lay)

Primary sanitary hot water pump
control
(use of relay necessary when > 1A)

Interlock input

Lockout input

OK/Alarm output signal

Boiler enable signal

0-10VDC temperature or capacity
setpoint (programmable)

Temperature control central heating
via PID controller

Temperature control sanitary hot
wa ter (hot water priority)
Control by building management
system
The R40 can be connected to a
buil ding management system. This
can be done by using (one of) the
following connections:
0
20
40
60
80
100
0 2 4 6 8 10
[V]
[ºC]
Boiler enable signal, terminals X6-7
and X6-8 (volt free)
The boiler enable signal is provided
with a jumper from the factory. When
connecting to a (volt free!!!) external
sig nal, the jumper must be removed.
Temperature or capacity setpoint,
terminals X6-1 and X6-2 (0-10VDC)
The R40 can be controlled via a
tempe rature or capacity setpoint.
The signal values are programmable,
from the factory the contact is
program med for temperature setpoint
with set tings as shown in the graphic.
When controlling the boiler via a
ca pacity setpoint, it’s highly recommen-
ded to control the primary boiler pump
with the internal pump control of the
LMS14 boiler controller. The mini mum
flow rate through the boiler must
be respected at all times. The
nomi nal
∆
T is 20K and should be at
least within 15K-25K at full load to
secure a safe boiler operation.