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BRADFORD WHITE CORP.

 

 

 

 

contact the factory.

There are three black programming buttons on the Temperature Control (see Figure 25). Press and hold all three programming buttons until the word ADJUST appears in the upper right corner of the LCD display (it replaces the word VIEW).

Pressing ITEM cycles you through the items you need to program. UP ARROW increases the value of that item, while DOWN ARROW decreases it. ADJUST mode exits if you don’t press a button for 20 seconds. To return to ADJUST mode, simply press and hold the three buttons again.

The first item is MODE; enter the mode number as determined above. The Temperature Control will then present you with some or all of the following options, depending on the mode you have chosen:

In mode 6 (external boiler control), you will not see the following options. Refer to Section 6.4.10 for setup information for mode 6.

FOR ALL OTHER MODES:

APPLICATION

MODE

SYSTEM

 

SETTING

SENSORS USED

• Parallel piping (non-

 

 

primary/secondary)

 

 

hydronic system

1

• None

• DHW with or without

 

 

a tank aquastat

 

 

• Primary/secondary

 

 

hydronic system

2

• Bradford White System

(pref'd by Bradford White)

 

Sensor (shipped

• No outdoor reset

 

with each Copper Brute II)

• Parallel piping (non-

 

 

primary/secondary)

 

 

hydronic system

3

• Bradford White System

• DHW

 

Sensor (shipped (with

• Advanced control

 

each Copper Brute II)

capability

 

 

• No outdoor reset

 

 

• Parallel piping (non-reset

 

• Bradford White outdoor

primary/secondary)

 

sensor (optional

hydronic system

4

part #R2014000)

• Advanced control

 

 

capability

 

 

• Outdoor reset

 

 

• Primary/secondary

 

• Bradford White System

hydronic system

5

Sensor (shipped

(preferred by

 

with each

Bradford White)

 

Copper Brute II)

• Outdoor reset

 

• Bradford White outdoor

 

 

reset sensor (optional part

 

 

# R2014000)

• Building automation

 

 

control

 

 

• Multiple boiler system

6

• None

control

 

 

• Energy management

 

 

system

 

 

• Other external control

 

 

 

 

 

BOIL MASS (Boiler Mass): Always choose “1”. BOIL TARGET (Boiler Target Temperature):

Your desired set-point temperature. See Section 6.4.5 and Figure 26 for more information.

BOIL MIN (Boiler Minimum Temperature): This setting tells the Temperature Control to maintain at least this temperature, even if the PID logic determines a lower setting would save energy. The BOIL MIN should always be 120°F (49°C) or higher to prevent condensation, and can be set up to 10°F below your BOIL TARGET temperature. See Section 6.4.3 for more information.

BOIL MAX (Boiler Maximum Temperature): This setting tells the Temperature Control to limit the maximum outlet temperature to this setting or below, and determines how quickly the temperature control “stages down” or off. If the BOIL MAX setting is much higher than the BOIL TARGET temperature, the temperature control will fire all stages until the target temperature is reached, and then shut down all stages at once. To enable gradual staging down of the boiler as you approach your target temperature, set the BOIL MAX to the same setting as the target temperature. See Section 6.4.4 for more information.

DIFF (Boiler Differential): This setting is divided above and below the target temperature. The water will be allowed to cool ½ this setting below the target temperature before first stage fires, and will heat to ½ this setting above the target temperature before staging the boiler down. See Section 6.4.1 and Figure 28 for more information.

PUMP DLY (Pump Delay): On pump mounted units, the boiler mounted pump continues to run for the time selected after the heat demand in the system is satisfied. This setting also affects the 24VAC output on the “PMP” “PMP” terminals (see Section 5.2). These terminals can power a contactor for a larger system pump. Bradford White recommends a minimum pump

Table 11. Modes and Sensors for Applications.

Figure 25. Temperature Control.

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Bradford-White Corp Copper Brute II Hydronic Boiler, BWCV, BWCH warranty For ALL Other Modes