VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised March 2019)
, Page
23.
CONTROLLER OPERATION
USER INTERFACE
The control of the boiler is ensured by a controller
TM171PFE03 from the Schneider Electric
company. The LCD display of the controller
provides an interface for configuring and
displaying the boiler parameters and status.
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 reading and modifying 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 internal buzzer and
activate an external alarm signal
when an alarm
condition occurs causing the boiler to fail.
Figure 9 : Illustration of the display
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
BIE
Boiler in Bi-Energy mode
VoltMax Boiler : On
Auxiliary boiler : On
Boost
mode : On
Warm Weather Shut Down
: On
Alarm symbol
An alarm is active
The boiler is in lock out mode
HL
High temperature limit condition at
the boiler outlet
LL
Low temperature limit conditions
(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
The internal clock battery level is low
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 calculated by
the boiler
PRESS.
Pressure inside the boiler
STAGE
Status of active stage
