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COPPER BRUTE II (500 - 2000)
PRIMARY/SECONDARY MANDITORY FORALL
VARIABLE FLOW SYSTEMS
INSTALLAIR VENTSAT HIGH POINTS IN SYSTEM
PIPING&SIZING OF EXPANSION TANK
PER TANK MANUFACTURER'S INSTRUCTIONS
DIMENSION "C" (COMMON PIPING)TO BE FOUR
PIPE DIAMETERS, MAX. (NOELBOWS OR VALVES)
BOILER CIRCUIT PIPINGMUST BE EQUAL
TO BOILER WATER CONNECTION SIZE
BOILER CIRC. PUMPSIZED FOR FLOW THROUGH BOILER
DOTTED DEVICES INDICATEALTERNATE LOCATIONS
PUT BOILER CONTROLSENSOR IN THESYSTEM
C
PUMP LOCATION FOR PUMP-MOUNTEDUNITS
SYSTEM PUMP
MAKE-UP
COLD WATER
SUPPLY
SYSTEM
PUMP LOCATION FOR
NON-PUMP-MOUNTED UNITS
RETURN
SYSTEM
SUPPLY WHEN USINGTHIS PIPING STYLE.
MINIMUM BOILER INLETWATER TEMPERATURE
MUST BEAT LEAST 120°F.
C
LEGEND
CHECK VALVE
THERMOMETER
TEMPERATURE
SENSOR
GLOBE VALVE
EXPANSION TANK
WITHAIR SCOOPAND
AUTOAIR VENT
3-WAY VALVE
VALVE
CAUTION: THISDRAWINGSHOWS SUGGESTED
PIPING CONFIGURATIONAND VALVING, CHECK
WITH LOCALCODESAND ORDINANCESFOR
ADDITIONALREQUIREMENTS.
PRESSURE REDUCINGVALVE
W/ FAST FILLBYPASS
PURGE
VALVE
PUMP
Figure 4. Hydronic Piping — Multiple Boilers, Primary Secondary System.
precautions are made for freeze protection. A non
toxic, heating system, anti-freeze may be added to
the hydronic system provided that the concentration
does not exceed 50% and the anti freeze contains an
anti foamant. When a 50/50 mixture is used, increase
the water ow requirements by 15%, and increase the
headloss requirements by 20%.
Power outage, interruption of gas supply, failure
of system components, activation of safety devices,
etc., may prevent a boiler from ring. Any time a
boiler is subjected to freezing conditions, and the
boiler is not able to re, and/or the water is not able
to circulate, there is a risk of freezing in the boiler
or in the pipes in the system. When water freezes,
it expands. This can result in bursting of pipes in the
system, or damage to the boiler, which could result in
leaking or ooding conditions.
IMPORTANT NOTES: Different glycol products
may provide varying degrees of protection. Glycol
products must be maintained properly in a heating
system, or they may become ineffective. Consult the
glycol specications, or the glycol manufacturer, for
information about specic products, maintenance
of solutions, and set up according to your particular
conditions.