4
2.4)
Type of ignition
The HGC series is available with two types of ignition:
a.
A constantly burning pilot;
b.
An intermittent pilot, that functions on demand.
2.5) Modulation
The HGC series is equipped with a 2-stage gas valve
that reduces the input by 50%. This staging is possible
by using an external control (dry contact), provided by
the installer.
2.6) Flow
switch
All HGC boilers are equipped with a factory installed
flow switch. This flow switch is located on the heat
exchanger manifold and is factory wired.
WARNING
It is compulsory to have the flow switch
functional at all times. If the flow switch is
defective, it must be changed before
attempting to restart the unit (never use a
jumper to by-pass the flow switch contact).
This may void your warranty.
If it is necessary to replace the flow switch, use the
“Watts #FS10-C-SS” model. When replacing, the blade
length varies depending on the unit capacity. Thus, for
models
“HGC-0404 to HGC-0909” the blade must be
3 1/4" (82.6 mm) long from the holding screw center
line to the blade end, while on models “HGC-1010 to
HGC-1515” the blade must be 1 3/4" (44.5 mm) long.
Note:
Leave the blade already installed on the
flow
switch, add the necessary blade to reach the desired
length or cut the blade if needed.
We recommend that you have a qualified
technician install your appliance.
3) DELIVERY
Check your unit carefully upon delivery for any evidence
of damage that may have occurred during shipping and
handling. Make sure that the information on the boiler
rating plate matches your needs and your invoice. Any
claims against the shipper for damages or lost parts
must be made without delay.
4) INSTALLATION
Your unit must be installed according to the regulations
established by competent authorities. Consult the latest
edition of the Installation codes CAN/CGA B149.1 or
B149.2 for current guidelines.
4.1) Location
The unit must be installed in a clean and dry area, as
close as possible to the chimney or power vent
.
WARNING
Any excessive accumulation of dust around
the boiler must not be tolerated, especially
construction related dust such as dry plaster
dust and insulation fibres.
Non observance of this Warning may cause
the warranty to become null and void.
These particles of dust tend to be sucked in by the
burners and clog them leading to possible severe soot
formation.
WARNING
This unit must be installed on a non-
combustible floor and cannot be installed
directly on carpet or wooden floor.