Does the number of cycles per hour setting on the thermostat affect the operation of the Hydrostat 3250+? I have my T-stat CPH set at the recommended 3 CPH for hot water heat. Is there any advantage (or change in firing time) to setting the CPH to 1?
Cycles per hour and Hydrostat 3250+
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Fitter30
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Have just the one zone? What are your heat emitters?
Hydrostat using any economy setting and or circulator control hold?
Here is a quoted Trane manual Pub. No. 18-HD32D1-2
"Cycle Rate
Cycle rate is the selected number of system cycles per hour at 50% load. If the cycle rate were set to 3, each ON/OFF cycle would be 20 minutes long when operating at 50% load. The total ON and/or OFF times depends on the actual indoor space load. A shorter cycle rate may be desired for Heating mode to maintain tighter control to indoor setpoint. A longer cycle rate may be desired for Cooling mode to allow the system to remove moisture from the air and improve indoor comfort."
So, a cycle rate should be set to YOUR HOME and YOUR COMFORT. Keep in mind, all houses are different and in different locations. Some are built tighter with better insulation R value, and some can barely maintain temp. Some have humidifiers, some are dry and shrink resulting in leaking windows and doors. Some have more appliances that run more often creating more heat.
Your preferred cycle rate may change with humidity level, and total load conditions etc. As Beenthere states, "temp overrides cph". CPH is at 50% load conditions, normal on/off cycles that are consistent. These rates are just simple parameters to HELP operate the COMFORT SYSTEM in your HOME. A cycle rate cannot change your home, nor your comfort system...
Most customers that complain about cycle rate do not have a humidifier, nor a tight, well insulated home, or their system is improperly sized or configured/functioning/leaking ducts etc..
Hydrostat using any economy setting and or circulator control hold?
Here is a quoted Trane manual Pub. No. 18-HD32D1-2
"Cycle Rate
Cycle rate is the selected number of system cycles per hour at 50% load. If the cycle rate were set to 3, each ON/OFF cycle would be 20 minutes long when operating at 50% load. The total ON and/or OFF times depends on the actual indoor space load. A shorter cycle rate may be desired for Heating mode to maintain tighter control to indoor setpoint. A longer cycle rate may be desired for Cooling mode to allow the system to remove moisture from the air and improve indoor comfort."
So, a cycle rate should be set to YOUR HOME and YOUR COMFORT. Keep in mind, all houses are different and in different locations. Some are built tighter with better insulation R value, and some can barely maintain temp. Some have humidifiers, some are dry and shrink resulting in leaking windows and doors. Some have more appliances that run more often creating more heat.
Your preferred cycle rate may change with humidity level, and total load conditions etc. As Beenthere states, "temp overrides cph". CPH is at 50% load conditions, normal on/off cycles that are consistent. These rates are just simple parameters to HELP operate the COMFORT SYSTEM in your HOME. A cycle rate cannot change your home, nor your comfort system...
Most customers that complain about cycle rate do not have a humidifier, nor a tight, well insulated home, or their system is improperly sized or configured/functioning/leaking ducts etc..
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