Regulated Gas Supply Pressures for DynaMax Boilers &
Water Heaters
A stable gas supply pressure is important to avoid rough
starts with machines like the DynaMax which use a 1 to 1
ratio control valve for internal gas pressure regulation.
Camus requires that all DynaMax models be supplied with
no more than 1 PSI supply pressure. This means that lockup
pressure must not exceed 1 PSI.
It is paramount that maximum lockup pressure be confirmed
before any attempt is made to start up the appliance.
Operating the DynaMax at lockup pressures exceeding 1
PSI is not recommended and could lead to delayed ignitions
and damage to the appliance.
PART 4 WATER CONNECTION
• Check all applicable local heating, plumbing and
building safety codes before proceeding.
• If the appliance is installed above radiation level it must
be provided with a low water cut-off device at the time of
appliance installation (available from Camus). Some
local codes require the installation of a low water cut-off
on all systems.
• Before connecting DynaMax to piping in a closed loop
system, flush system thoroughly and refill with clean
water and add chemical treatment to bring pH to 8.0 to
8.5 range.
• A pressure relief valve is supplied with each DynaMax.
The relief valve must be mounted in a vertical position
and piped to the floor in a manner acceptable to the
enforcing authority.
• Be sure to provide unions and gate valves at inlet and
outlet to the appliance so that it can be easily isolated
for service.
• On combination heaters a flow setter valve at the
appliance outlet facilitates setting of the desired outlet
temperature at high fire. Refer to Section 12.9 Domestic
Hot Water with Plate Heat Exchanger for more details
• This appliance is a low mass stainless steel tube design
which provides for instant heat transfer. All appliances
are supplied with an internal suitable specific pump
mounted in place. When replacing the pump, replace
with one of equal or better-performance.
• An air vent is supplied on the heat exchanger header to
eliminate trapped air. Install venting devices at high
points in the system as well to eliminate trapped air in
the piping.
• Use suitable pipe hangers or floor stands to support the
weight of all water and gas piping.
• The DynaMax must be installed so that the gas ignition
system components are protected from water (dripping,
spraying, rain, etc.) during appliance operation and
service (circulator replacement, control replacement,
etc.)
• Strainers are recommended to be installed into the
system to prevent foreign objects from entering the heat
exchanger.
4.1 FREEZE PROTECTION OUTDOOR
INSTALLATION
• Appliance installations are not recommended outdoors
or in areas where danger of freezing exists unless
precautions are taken. Maintaining a mixture of 70%
water and 30% propylene glycol is the preferred method
of freeze protection in hydronic systems. DO NOT
exceed a mixture of 50/50. This mixture will protect the
appliance to approximately -35ºF (-37ºC).
• For outdoor installations a snow screen should be
installed to prevent snow and ice accumulation around
the appliance. Regular inspections should be made to
ensure that air inlet and vent are free of snow and ice.
Always consider the use of a shelter such as a garden
shed in lieu of direct exposure of the appliance to the
elements. The additional protection afforded by the
shelter will help to minimize nuisance problems with
electrical connections and will allow easier servicing of
the appliance under severe weather conditions.
To Next Page
Loading...
