PRESSURIZED, FIXED SUPPLY TEMP – CONSTANT SPEED PUMPING ......................................................................28 PRESSURIZED, FIXED SUPPLY TEMP – VARIABLE SPEED PUMPING.........................................................................29
F. SYSTEM COMPONENT CONNECTION AND SCHEMATICS .............................................................................. 30
CONNECTION TO FORCED AIR FURNACE: ...............................................................................................................30 FORCED AIR GUIDELINES:....................................................................................................................................30 COIL SELECTION...................................................................................................................................................31 HIGH LIMIT SWITCH (DUCT STAT) .......................................................................................................................31 BLOWER SPEED AND CFM ADJUSTMENT............................................................................................................31 CONNECTION TO HOT WATER BASEBOARD SYSTEM: ............................................................................................32 HOT WATER BASEBOARD GUIDELINES ...............................................................................................................32 NEW CONSTRUCTION .........................................................................................................................................33 CONVERTING AN EXISTING BASEBOARD SYSTEM ...............................................................................................33 CONNECTION TO HYDRONIC RADIANT FLOOR SYSTEM: ........................................................................................34 RADIANT FLOOR GUIDELINES: ............................................................................................................................34 CONNECTION TO AN EXISTING PRESSURIZED SYSTEM ...........................................................................................35 WATER TO WATER FLAT PLATE HEAT EXCHANGERS...........................................................................................36 CONNECTION TO AN ELEVATED SYSTEM ................................................................................................................37 CONNECTION TO DOMESTIC HOT WATER ..............................................................................................................37 SOLAR INTERFACE: ..................................................................................................................................................39
G. BACKUP HEATING WITH THE EXISTING SYSTEM OR ELECTRIC...................................................................... 40
H. EXAMPLE PROBLEM – HOUSE WITH REMOTE POLE BARN/WORKSHOP ...................................................... 41
EXAMPLE PROBLEM SETUP:....................................................................................................................................41 HOUSE DESIGN: ....................................................................................................................................................... 41 MAIN FLOOR DESIGN: .........................................................................................................................................41 BASEMENT LEVEL DESIGN:..................................................................................................................................43 SIZE THE main floor HOUSE PUMP..........................................................................................................................43 SIZE THE BASEMENT PUMP ....................................................................................................................................44 DISTRIBUTION PIPE AND PUMP SIZING ..................................................................................................................44 SIZE DISTRIBUTION PUMP.......................................................................................................................................45 POLE BARN DESIGN.................................................................................................................................................45 SIZE POLE BARN PUMP ...........................................................................................................................................46
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Hydronic System Design Manual ©DECTRA CORPORATION - March 2013
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