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2.1)
ADJUSTMENTS AND START-UP
CAUTION
The boiler must be filled with water and all air
purged from the system, before turning on the
power.
CAUTION
If the power is turned on before the boiler is filled
with water, the elements will become seriously
damaged.
1.
With the help of a small screwdriver, adjust the boiler
temperature screw, located on the control board, to between
o
o
o
"90
F-140
F-200
F" (see Figure 3, note 4);
2.
To check whether all the elements are functional, regardless of
the outside temperature, move the modulation jumper from
terminal "M M" to "M", thereby by -passing the exterior sensor;
3.
Check if the jumper "NUMBER OF ELEMENTS" is in the
proper position. Refer to Table 2 to determine the position of
the jumper, based on the power rating;
4.
Turn on the power;
5.
Set the thermostat in the house to 85
should start-up and the elements should start sequentially, one
by one, at approximately 15 second intervals. The pilot lights
provide a visual check of the operation of the boiler:
- 3 pilots on at 9 to 15Kw ;
- 4 pilots on at 18 to 20Kw ;
- 6 pilots on at 24Kw ;
6.
The circulator stays on for as long as there is a call for heat;
7.
As soon as the demand for heat is met or the assigned
temperature is reached, the elements stop sequentially, one by
one, at 1 second intervals between each;
8.
If an exterior modulating sensor is installed, reposition the
modulating jumper "M M" to the position "M" to put the
modulating function into operation.
TABLE 2
Number of
Power (kW)
Elements
9, 15, 18, 20
2, 3 et 4
24
SECTION 2
OPERATION
o
o
F (30
C). The circulator
Jumper
Position
#4
6
#6
2.2)
CHECKING THE CONTROLS
Operational Controls
After having made sure that the boiler is completely filled with water
and that there is no call for heat, turn on the power to the unit.
By observing the temperature indicator, allow the water temperature
o
o
to rise to 140
F (60
C). Then, turn the electronic Limit Control
o
counter clockwise to 90
F (32
sequentially, one by one, at 1 second intervals between each. Now,
readjust to the desired temperature, lower than the mechanical Limit
Control.
Mechanical High Limit Control
Use the same procedure as outlined in the preceding paragraph, but
now on the mechanical aquastat, located at the bottom right of the
control panel. This time the elements will all disengage at the same
time. Then, readjust to the maximum of the calibration.
Modulation Control
Turn off the power to the electric boiler. Place the jumper "M M" on
the electronic board to the position "M". In this way, the total output
of the boiler is governed by the evaluation of the outside
temperature, as indicated in Table 3. The purpose of this feature is
to considerably reduce the number of heating cycles. The shut-down
sequence of the elements, based on the temperature, is described
in Table 4.
2.3)
BCEH DUAL-ENERGY INSTALLATION
In order to obtain a special rate (DT rate) from your hydro-electric
power supplier on residential applications, your HYDRA boiler can
be hooked-up to an existing oil heater.
Contact your Hydro office to find out if your property is eligible to
receive this rate and how to go about obtaining it.
BCEH dual-energy controls are specially designed to Hydro
standards. The BCEH control selects the least expensive energy
source, either oil or electricity, based on outside temperature or a
signal from Hydro.
The BCEH dual-energy control will start-up the oil burner when the
contact in the outdoor dual-energy sensor closes (due to a drop in
temperature or other signal), even if the thermostat in the house is
not calling for heat. It will stop when the temperature in the boiler
reaches its target on the Limit Control. Only in such a case is an
anti-gravity valve (flow check valve) or are motorized zone valves
required.
A three-way, motorized valve will direct the water flow either to the
oil fired heater or to your electric HYDRA boiler, depending on the
signal received from the outdoor dual-energy sensor.
Refer to Figures 5 and 6 for installation instructions.
o
C). The elements will stop
5
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