VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised June 2017)
, Page
34.
SECTION 4 : CONTROLLER OPERATION
4.1 USER INTERFACE
The control of the boiler is ensured by a
controller
TM171PFE03
of
the
company
Schneider Electric. The LCD display of the
controller provides an interface for configuring
and displaying the boiler parameters.
A communication module also allows you to
integrate the controller with an intelligent building
management system (BACnet protocol). It is
also equipped with an Ethernet connection.
Allowing the connection to the Internet network
of the building allowing to read and modify
locally or remotely the boiler setting. It can be
configured to send alarm messages via e-mail.
Icons will also display to indicate the
boiler’s
current operating status. Temperature can be
displayed in Celsius or Fahrenheit and text can
be set to either English or French.
The controller has a backlight function. It is also
equipped with three indicator lights (Green /
Yellow / Red). The green light indicates normal
operation of the unit; the yellow light indicates
that the controller has diagnosed and anomaly
which requires verification by a technician. The
red light indicates that the unit is currently in a
critical state (high temperature alarm) or in lock
out mode. More detail is provided in
Section 6:
Troubleshooting
. The controller can also be
configured to activate an audible alarm and
activate an external alarm signal
when an alarm
condition occurs causing the boiler to fail.
Figure 13 : Illustration of the display
4.1.1 SYMBOL DESCRIPTION
The main display shows most the boiler
operation status information. The explanation of
the main display is shown below.
Boiler operating mode
W1
Heating request 1 : On
W2
Heating request 2 : On
P1
Pump 1 : On
P2
Pump 2 : On
BIE
Boiler in Bi-Energy mode
VOLTMAX Boiler : On
Bi-energy operation with auxiliary
boiler
Boost mode : On
Warm Weather Shut Down : On
Alarm symbol
An alarm is active
The boiler is in lock out mode
HL
High limit temperature is reached
LL
Low limit (Lack of capacity)
P
Alarm due to a pressure problem
A
Alarm due to an electrical problem
F
Alarm due to a flow problem
Se
Alarm due to a sensor problem
Operating state of the boiler
T° SET-
POINT
Actual set-point temperature
T° BOILER
Water temperature at the
outlet of the boiler
CAP
(%)
Percentage of power used
according to boiler rated
power
T° EXT
Outdoor temperature
measured using the outdoor
sensor
KW ACT
Actual power used by the
boiler
PRESS.
Pressure inside the boiler
STAGE
Status of active stage