BTH ULTRA Electric Boilers
Installation & Operation manual (Revision: June 2015)
18
.
The following tables show the values of the target
temperature that will be obtained in relation to the
outdoor temperature.
80F
27C
70F
21C
60F
15C
50F
10C
10F
-12C
40F
4C
30F
0C
20F
-7C
0F
-17C
-10F
-23C
-20F
-29C
110F/43C
120F/49C
130F/54C
Température ext. / Outdoor temperature
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STD
MAX
MIN
PLINTHES CHAUFFANTES À AILLETTES
FINNED-TUBE HOT WATER BASEBOARDS
140F/60C
150F/65C
160F/71C
170F/77C
180F/82C
190F/88C
80F
27C
70F
21C
60F
15C
50F
10C
10F
-12C
40F
4C
30F
0C
20F
-7C
0F
-17C
-10F
-23C
-20F
-29C
70F/21C
80F/27C
100F/-38C
90F/32C
110F/43C
120F/49C
130F/54C
Température ext. / Outdoor temperature
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STD
MAX
MIN
PLANCHER CHAUFFANT DANS BÉTON
RADIANT FLOOR IN CONCRETE
80F
27C
70F
21C
60F
15C
50F
10C
10F
-12C
40F
4C
30F
0C
20F
-7C
0F
-17C
-10F
-23C
-20F
-29C
100F/-38C
90F/32C
110F/43C
120F/49C
130F/54C
Température ext. / Outdoor temperature
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STD
MAX
MIN
PLANCHER CHAUFFANT ENTRE SOLIVES
RADIANT FLOOR BETWEEN JOISTS
140F/60C
80F/27C
80F
27C
70F
21C
60F
15C
50F
10C
10F
-12C
40F
4C
30F
0C
20F
-7C
0F
-17C
-10F
-23C
-20F
-29C
100F/-38C
90F/32C
110F/43C
120F/49C
130F/54C
Température ext. / Outdoor temperature
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STD
MAX
MIN
RADIATEURS EN FONTE
CAST IRON RADIATORS
140F/60C
150F/65C
160F/71C
170F/77C
4.6 PURGE DELAY OF THE PUMP
The controller offers the possibility to
stop the operation of the pump after an adjustable delay
once the heat demand has been completed.
The following choices are offered:
“OFF” The pump will stop immediately when the
heat demand has been satisfied. This selection
shall be selected on systems equipped with
motorised fast closing zone valves in order to
prevent noise from water hammering.
“15 sec to 60 min” delay where the pump will
be kept running to enable the pump to circulate
water into the system to equilibrate the heat in
all the building.
“ON” The pump is in continuous operation.
Required on particular heating distribution
systems.
4.7 AUTOMATIC HEATING
SHUT DOWN
When the outdoor sensor is installed and the unit then
operates in the “outdoor reset” mode, the controller
offers the user the possibility to automatically stop the
boiler when the outdoor temperature reaches an
adjustable value (0°F (-17°C) à 105°F (40°C). This
characteristic is especially interesting on the following
applications:
-Heating systems equipped with many thermostats
where the user wants to prevent the operation of the
unit if one of the thermostats has inadvertently been
activated.
-Heating systems where the owner supplies heat to a
lodger
-Systems connected to a geothermic heat pump where
we do not want the electric boiler to be operating unless
the outdoor temperature drops to a selected degree.
4.8 CONFIGURATION OF THE CONTROLLER
Since each type of heating distribution system is
designed to operate at water temperatures that are
particular to its operation, the proper configuration of
the operating parameters of this particular system is
important to maximize its performance.
In order to do this, the installer will first have to tell the
controller if the application is in Dual-energy with an
auxiliary boiler. The selection is made by selecting the
position “Elect.” Or “Bi-Energ” on the switch located at
the back of the controller. This selection will have to be
made before applying voltage to the unit. The default
setting is “Elect.”
