Burnham RTC (Return Temperature Control) Manual de Instalação descarregar pdf (Página 6)

6 of 60

SETPOINT OPERATION

Mix Target

For setpoint control, set the OUTDR DSGN to OFF. The mix target becomes the setpoint supply temperature that the control is

to maintain. The mix target temperature is set by the installer in the ADJUST menu. An outdoor sensor is not required during this

mode of operation.

COMMON SETTINGS

The following settings are common to both the outdoor reset and setpoint operations.

Open Delay

The open delay is the amount of time that the actuating motor requires to operate the valve from fully closed to fully open.

Boiler Minimum (BOIL MIN)

Most boilers require a minimum water temperature in order to prevent flue gas condensation. The BOIL MIN adjustment is set to

the boiler’s minimum recommended operating temperature. The lowest boiler minimum temperature is 135°F (57°C).

Boiler Minimum Delay (BOIL MIN Delay)

The boiler minimum delay allows a time for the boiler temperature to rise to the boiler minimum temperature while there is a heat

demand. After the time delay, the control begins to count the boiler minimum run time (Monitor BOIL MIN run).

Pump Delay

The pump delay allows the boiler recirculating pump to purge heat from the boiler into the system after the heat demand is

removed. The amount of purge time is determined by the Pump Delay setting.

Section D: Temperature Monitoring

Boiler Temperature (BOIL)

The actual boiler return temperature as measured by the boiler return sensor.

Mix Target

The current mix target temperature if outdoor reset or setpoint operation is selected.

Mix

The actual mix temperature as measured by the mix supply sensor if a mix supply sensor is installed.

Outdoor

The current outdoor temperature as measured by the outdoor sensor, if the outdoor sensor is installed and Outdoor Design is

set to a temperature.

Monitor Items

Monitor Items are displayed using a five digit number. The display cycles between the

monitor name, the first two digits, and the last three digits.

Boiler Run Time (Monitor BOIL run)

The control records the number of hours the boiler enable contact has been closed.

Number of Boiler Cycles (Monitor BOIL CYC)

The control records the number of cycles of the boiler enable contact.

Boiler Run Time Below Return Water Minimum (Monitor BOIL MIN run)

The control records the number of hours the boiler return temperature is below the

boiler minimum temperature and the boiler enable contact is closed. The control does

not record any time while the control is within the boiler minimum delay period.

Number of Boiler Cold Shock Conditions (Monitor BOIL CS)

The control records the number of large and quick temperature swings, which could

be an indication of erratic system behavior.

Boiler Sensor Error Time (Monitor BOIL MIN Err)

The control records the number of hours the boiler return sensor is not functioning.

Monitor

1 2 3 4 5 6 7 8 9 10 11 ... 59 60

Comentários a estes Manuais

Sem comentários

Burnham RTC (Return Temperature Control) Manual de Instalação Página 6

Comentários a estes Manuais

Manuais e produtos relacionados com não Burnham RTC (Return Temperature Control)