2
Note:
1. If a flame signal is detected at the end of the pre-purge
period a lockout will occur.
2. If at the end of the safety period (6 sec) no flame is
detected the control will go to post-purge to remove the
unburned gas. After this, a re-ignition attempt is started
following the same cycle. The number of re-ignition
attempts is limited to 2 after which a lockout occurs.
3. The burner can only be on continuously for a period of
24 hours. After this the burner is switched off and a
restart sequence follows.
4. Sparking stops 2 seconds before the end of the ignition
period to allow for ionisation detection.
1.5.2
Heat Transfer Process
1) Burner input continues to increase until DHW water
temperature reaches the setpoint temperature.
2) Burner input may stabilize at a fixed rate where
demand equals input.
3) Burner input will decrease when DHW water
temperature approaches temperature setpoint.
1.5.3
End of Sequence
1) Setpoint temperature is satisfied.
2) Power to the gas valve is turned off.
3) Combustion air fan ramps to a stop over the factory
preprogrammed time period.
WARNING
To minimize the possibility of serious personal injury, fire or
damage to your appliance, never violate the following
safety rules.
DO NOT
Do not use this appliance if any part of it has been under
water. The possible damage to a flooded appliance can be
extensive and present numerous safety hazards. Any
appliance that has been under water must be replaced
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance. • Do not touch any electric
switch: do not use any phone in your building. •
Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions. • If you cannot reach
your gas supplier, call the fire department.
IMPORTANT
Consult and follow local Building and Fire Regulations and
other Safety Codes that apply to this installation. Contact
the local gas utility company to inspect and authorize all
gas and flue connections.
Installation and service must be performed by a
qualified technician/installer, and trained by Camus
Hydronics.
WARNING
Should overheating occur or the gas supply fails to shut off,
DO NOT turn off or disconnect the electrical supply to the
pump. Shut off the gas supply at a location external to the
appliance.
•
Boilers and water heaters are heat producing
appliances. To avoid damage or injury, do not store
materials against the appliance or the vent-air inlet
system. Use proper care to avoid unnecessary contact
(especially children) with the appliance and vent-air
inlet components.
•
Never cover appliance, lean anything against it, store
trash or debris near it, stand on it or in any way block
the flow of fresh air to appliance.
•
UNDER NO CIRCUMSTANCES may flammable
materials such as gasoline or paint thinner be used or
stored in the vicinity of this appliance, vent-air inlet
system or any location from which fumes could reach
the appliance or vent-air inlet system.
•
A gas appliance that draws combustion air from the
equipment room where it is installed must have a
supply of fresh air circulating around it during burner
operation for proper gas combustion and proper
venting.
1.6
INSTALLATION CODES
The equipment shall be installed in accordance with
those installation regulations enforced in the local area
where the installation is to be made. These shall be
carefully followed in all cases. Authorities having jurisdiction
shall be consulted before installations are made. In the
absence of such requirements, the installation shall
conform to the latest edition or current as amended of the
National Fuel Gas Code, ANSI Z223.1 and/or CAN/CGA-
B149 Installation Code. All electrical wiring must be done in
accordance with the requirements of the authority having
jurisdiction or, in the absence of such requirements, with
national electrical code, ANSI/NFPA70 and/or the Canadian
electrical code part 1 CSA C22.1. Where required by the
authority having jurisdiction, the installation must conform to
American Society of Mechanical Engineers Safety Code for
Controls and Safety Devices for Automatically Fired Boilers,
ASME CSD-1. All boilers must conform to the latest edition
of the ASME Boiler and Pressure Vessel Code, Section II.
Where required by the authority having jurisdiction, the
installation must comply with the CSA International,
CAN/CGA-B149 and/or local codes. This appliance meets
the safe lighting performance criteria with the gas manifold
and control assembly provided, as specified in the ANSI
standards for gas-fired units, ANSI Z21.10.3b-2008.
1.7
WARRANTY
•
Factory warranty (shipped with unit) does not
apply to units improperly installed or improperly
operated.
•
Factory warranty shall apply only when the
appliance is installed in accordance with local
plumbing and building codes, ordinances and
regulations, the printed instructions provided with it
and good industry practices.
•
Excessive water hardness causing a lime build-
up in the stainless steel coils or tubes is not a fault
of the appliance and is not covered by warranty.
Consult the factory for recommendations for use in
hard water areas.
(See Water Treatment and
Water Chemistry)
•
Using or storing corrosive chemicals in the
vicinity of this appliance will attack the stainless
steel jacket, the stainless steel venting, heat
exchanger coils, wiring and brass fittings and
voids warranty.
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